CN220821873U - Lithium battery pack protection board - Google Patents
Lithium battery pack protection board Download PDFInfo
- Publication number
- CN220821873U CN220821873U CN202322383045.9U CN202322383045U CN220821873U CN 220821873 U CN220821873 U CN 220821873U CN 202322383045 U CN202322383045 U CN 202322383045U CN 220821873 U CN220821873 U CN 220821873U
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- China
- Prior art keywords
- pressing
- plate
- battery pack
- protection
- seat
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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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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 34
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 150000002641 lithium Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of lithium battery pack protection plates, and discloses a lithium battery pack protection plate which comprises a protection mechanism, wherein the protection mechanism comprises a protection plate and a connecting wire, one side of the protection plate is provided with the connecting wire, a battery groove is formed in the protection mechanism, and a pressing mechanism which is convenient to fix a battery pack is arranged at a position, corresponding to the battery groove, on the protection mechanism; the compressing mechanism comprises a pressing component, a telescopic component and an adjusting component, wherein the pressing component is arranged on the left side of the battery jar, the telescopic component is arranged on the pressing component, the adjusting component is arranged on the left side of the telescopic component, the adjusting component is arranged on the inner side of the protection board, the battery packs with different sizes are conveniently fixed through the arranged compressing mechanism, and when the width of the battery pack is narrower, the battery packs can be understood to be attached to the inner side wall of the battery jar front and back, and the tightening force is enough to limit the battery packs.
Description
Technical Field
The utility model relates to the technical field of lithium battery pack protection plates, in particular to a lithium battery pack protection plate.
Background
The lithium battery pack protection board is a common device for protecting the lithium battery pack, but the lithium battery pack is inconvenient to install on the protection board, if the lithium battery pack is directly fixed on the protection board, the fixing is troublesome, the fixing is unstable, a device which is specially adapted is required to be fixed, if a battery groove is formed in the protection board, but the lithium battery pack is large and small, the possible width is insufficient, the lithium battery pack can slide in the battery groove at will, the fixing is unstable, the left and right clamping rolling mode is easy to fall off, the types of the lithium battery pack are also different, the wiring port or the power supply port of the lithium battery pack are not uniform, the fixed protection board is not suitable for battery packs of different types, and therefore the use of the protection board is inconvenient, and the change is inconvenient.
In order to solve the above problems, the present application provides a lithium battery pack protection plate.
Disclosure of utility model
The utility model aims to provide a lithium battery pack protection plate, which solves the problem that battery packs with different specifications are inconvenient to fix in the prior art, and battery packs with different models cannot be matched with sockets on the protection plate.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the lithium battery pack protection plate comprises a protection mechanism, wherein the protection mechanism comprises a protection plate and a connecting wire, one side of the protection plate is provided with the connecting wire, a battery groove is formed in the protection mechanism, and a pressing mechanism which is convenient to fix the battery pack is arranged at the position, corresponding to the battery groove, of the protection mechanism;
The pressing mechanism comprises a pressing component, a telescopic component and an adjusting component, wherein the pressing component is arranged on the left side of the battery groove, the telescopic component is arranged on the pressing component, the adjusting component is arranged on the left side of the telescopic component, and the adjusting component is arranged on the inner side of the protective plate.
Further, the pressing component comprises a pressing seat A, a screw rod A, a pressing plate A and a rotating plate, wherein a mounting hole A is formed in the inner side of the top end of the protecting plate, the inner side of the mounting hole A is fixedly connected with the pressing seat A, the inner side of the pressing seat A is in threaded connection with the screw rod A, the outer side of the screw rod A is in sliding connection with the pressing plate A, and the left end of the pressing plate A is rotationally connected with the rotating plate through a rotating shaft.
Further, a pressing groove is formed in the inner side of the pressing plate A, and the screw A is arranged in the pressing groove.
Further, the telescopic component comprises a pressing strip A and a pressing strip B, the left end of the rotary plate is fixedly connected with the pressing strip A, the inner side of the pressing strip A is connected with the pressing strip B in a sliding mode, and the pressing strip A and the pressing strip B are arranged in an L shape.
Further, the adjusting part comprises a pressing plate B, a screw rod B, a pressing seat B and a sliding block, wherein the left end of the pressing plate B is fixedly connected with the pressing plate B, two mounting holes B are formed in the inner side of the pressing plate B, the two mounting holes B are symmetrically formed in the front and the back of the pressing plate B, the inner side of the mounting holes B is slidably connected with the screw rod B, the outer side of the screw rod B is in threaded connection with the pressing seat B, the outer side of the bottom end of the pressing seat B is fixedly connected with the sliding block, two sliding grooves are formed in the inner side of the protecting plate, and the cross sections of the sliding grooves are in a convex shape.
Further, the protection mechanism is provided with an expansion mechanism for expanding wiring operation of a user, the expansion mechanism comprises a wire holder, a socket, limiting strips and fixing bolts, the wire holder is connected to the inner side wall of the battery groove in a sliding mode, the right end of the wire holder is mutually attached to the right side of the inner side wall of the battery groove of the protection plate, the top end of the left side of the wire holder is fixedly connected with the socket, the right end of the wire holder is fixedly connected with two groups of limiting strips, an expansion hole is formed in the inner side of the limiting strips, threaded holes are formed in the position, corresponding to the expansion hole, of the inner side wall of the protection plate, the fixing bolts are connected to the inner side wall of the expansion hole in a sliding mode, and the outer side of the fixing bolts are in threaded connection with the threaded holes.
Further, two sets of spacing is the fore-and-aft symmetry setting and is in the right side of connection terminal, every two sets of spacing sets up respectively the right side top and the right side bottom of connection terminal, the shield inboard has seted up the spacing groove, this spacing groove inside wall left end and this battery jar inside wall right-hand member intercommunication each other.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, through the arrangement, the battery packs with different sizes are conveniently fixed, and when the width of the battery pack is narrower, the battery packs can be understood as being not attached to the inner side wall of the battery groove front and back, and the tightening force is enough to limit the battery packs.
2. According to the utility model, through the arranged expansion mechanism, the power supply port of the battery pack is convenient to adapt to the socket, the installation and the fixation are convenient, the operation is simple, and the battery pack is convenient to adapt to different types of battery packs.
Drawings
Fig. 1 is a schematic view showing the overall structure of a lithium battery pack protection plate according to the present utility model;
FIG. 2 is a side cross-sectional view of the mounting structure of the hold-down mechanism of the lithium battery pack protection plate of the present utility model;
fig. 3 is a side sectional view showing a mounting structure of a pressing down assembly of a lithium battery pack protecting plate according to the present utility model;
FIG. 4 is a side cross-sectional view of the mounting structure of the telescoping assembly of the lithium battery pack protecting plate of the present utility model;
Fig. 5 is a side sectional view showing an installation structure of an adjusting assembly of a lithium battery pack protection plate according to the present utility model;
Fig. 6 is a side sectional view of a mounting structure of a protection plate of a lithium battery pack protection plate according to the present utility model;
FIG. 7 is a side cross-sectional view of the mounting structure of the expansion mechanism of the lithium battery pack protection plate of the present utility model;
fig. 8 is a top view of an installation structure of a limit bar of a lithium battery pack protection plate according to the present utility model;
Fig. 9 is a perspective view showing the overall structure of a lithium battery pack protection plate according to the present utility model.
In the figure:
1. A protection mechanism; 11. a protective plate; 12. a connecting wire;
2. A compressing mechanism; 21. pressing down the assembly; 211. a pressing seat A; 212. a screw A; 213. a pressing plate A; 214. a rotating plate; 22. a telescoping assembly; 221. a pressing bar A; 222. a pressing bar B; 23. an adjustment assembly; 231. a pressing plate B; 232. a screw B; 233. a pressing seat B; 234. a slide block;
3. An expanding mechanism; 31. a wire holder; 32. a socket; 33. a limit bar; 34. and (5) fixing bolts.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-9, the present utility model provides a technical solution: the lithium battery pack protection plate comprises a protection mechanism 1, wherein the protection mechanism 1 comprises a protection plate 11 and a connecting wire 12, the connecting wire 12 is arranged on one side of the protection plate 11, a battery groove is formed in the protection mechanism 1, and a pressing mechanism 2 which is convenient to fix the battery pack is arranged at the position, corresponding to the battery groove, of the protection mechanism 1;
The hold-down mechanism 2 comprises a hold-down assembly 21, a telescopic assembly 22 and an adjusting assembly 23, wherein the left side of the battery tank is provided with the hold-down assembly 21, the telescopic assembly 22 is arranged on the hold-down assembly 21, the left side of the telescopic assembly 22 is provided with the adjusting assembly 23, the adjusting assembly 23 is arranged on the inner side of the protecting plate 11, when the device is used, a screw rod B232 is rotated to be separated from a press seat B233, then a rotating plate 214 is rotated on a pressing plate A213, then a battery pack is placed in the battery tank, the right side of the battery pack is mutually attached to the right end of the inner side wall of the battery tank, then the rotating plate 214 is rotated to reset, the pressing plate A221 and the pressing plate B222 are placed right above the battery pack, the pressing plate B222 slides in the pressing plate A221, the L-shaped short end of the pressing plate B222 is attached to the left side 234 of the battery pack, the pressing plate B231 is driven to slide by the pressing plate B231 through the screw rod B232, the pressing plate B233 is driven to slide in the sliding groove of the protecting plate 11, the left side of the battery pack is clamped by the pressing bar B222, the pressing bar A221 is also attached to the right side of the battery pack, then the screw A212 and the screw B232 are rotated by a screwdriver, so that the pressing plate A213 and the pressing plate B231 are pressed down, the pressing bar A221 and the pressing bar B222 are driven to press and fix the battery pack, the screw B232 is driven by the more rotating screw B232 to drive the pressing plate B231 to be close to the sliding block 234, the sliding groove of the sliding block 234 is tightly attached, the sliding block 234 is fixed by friction between the sliding block 234 and the sliding groove, the position of the pressing bar B231 is limited and fixed, the pressing bar B222 is prevented from sliding in the pressing bar A221 at will, the pressing bar A221 and the pressing bar B222 are also pressed and fixed on the battery pack, the pressing bar B222 and the pressing bar A221 are driven to tightly and limitedly fix the battery packs in the battery groove through friction, and the battery packs with different sizes are conveniently fixed, and when the width of the battery pack is narrower, the battery pack can be understood to be not attached to the inner side wall of the battery groove front and back, and the tightening force is enough to limit the battery pack.
The lower pressure component 21 comprises a pressure seat A211, a screw rod A212, a pressure plate A213 and a rotating plate 214, wherein a mounting hole A is formed in the inner side of the top end of the protective plate 11, the pressure seat A211 is fixedly connected to the inner side of the mounting hole A, the screw rod A212 is connected to the inner side of the pressure seat A211 in a threaded manner, the pressure plate A213 is connected to the rotating plate 214 in a sliding manner, the left end of the pressure plate A213 is rotationally connected to the rotating plate 214 through a rotating shaft.
The indent has been seted up to clamp plate A213 inboard, screw rod A212 sets up in this indent inboard, use screwdriver rotation screw rod A212 and screw rod B232, screw rod A212 rotates downwards in pressure seat A211, screw rod B232 rotates downwards in pressure seat B233, make clamp plate A213 and clamp plate B231 push down, clamp plate A213 drives the rotating plate 214 downwards, the rotating plate 214 drives layering A221 downwards, clamp plate B231 drives layering B222 downwards, thereby drive layering A221 and layering B222 compress tightly the battery package fixedly, and more rotation screw rod B232 makes screw rod B232 transfer clamp plate B231 to be close to slider 234, also make slider 234 spout closely laminate.
The telescopic assembly 22 comprises a pressing strip A221 and a pressing strip B222, the left end of the rotating plate 214 is fixedly connected with the pressing strip A221, the inner side of the pressing strip A221 is slidably connected with the pressing strip B222, the pressing strip A221 and the pressing strip B222 are all in an L-shaped arrangement, a battery pack is placed in a battery groove, the right side of the battery pack is mutually attached to the right end of the inner side wall of the battery groove, the pressing strip A221 and the pressing strip B222 are placed right above the battery pack, the pressing strip B222 slides in the pressing strip A221, the short end of the L-shaped part of the pressing strip B222 is attached to the left side of the battery pack, the pressing strip A221 is attached to the right side of the battery pack, then a screw driver is used for rotating the screw A212 and the screw B232, the screw A212 rotates downwards in a pressing seat A211, the screw B232 rotates downwards in a pressing seat B233, the pressing plate A213 and the pressing plate B231 downwards, the pressing plate A213 drives the rotating plate 214 downwards, the pressing strip A221 and the pressing strip B231 downwards, and the pressing strip A221 are also tightly fixed on the battery pack, the pressing strip A221 is tightly pressed and the battery pack, and the pressing strip B221 is prevented from being randomly fixed in the battery groove by the pressing strip A and the battery pack, and the battery pack is prevented from being randomly fixed in the battery pack by the pressing strip B221.
The adjusting component 23 comprises a pressing plate B231, a screw rod B232, a pressing seat B233 and a sliding block 234, wherein the pressing plate B231 is fixedly connected to the left end of the pressing plate B222, two mounting holes B are formed in the inner side of the pressing plate B231, the two mounting holes B are symmetrically formed in the front and back of the pressing plate B231, the screw rod B232 is connected to the inner side of the mounting holes B in a sliding mode, the pressing seat B233 is connected to the outer side of the screw rod B232 in a threaded mode, the sliding block 234 is fixedly connected to the outer side of the bottom end of the pressing seat B233, two sliding grooves are formed in the inner side of the protection plate 11, and the cross sections of the sliding grooves are in a convex shape.
The extension mechanism 3 for extending wiring operation of a user is mounted on the protection mechanism 1, the extension mechanism 3 comprises a wiring seat 31, a socket 32, limiting strips 33 and fixing bolts 34, the wiring seat 31 is slidably connected to the inner side wall of a battery groove, the right end of the wiring seat 31 is mutually attached to the right side of the inner side wall of the battery groove of the protection plate 11, the socket 32 is fixedly connected to the top end of the left side of the wiring seat 31, two groups of limiting strips 33 are fixedly connected to the right end of the wiring seat 31, an extension hole is formed in the inner side of the limiting strips 33, threaded holes are formed in the position, corresponding to the extension hole, of the inner side wall of the protection plate 11, fixing bolts 34 are slidably connected to the inner side of the extension hole, the outer side of the fixing bolts 34 are in threaded connection with the threaded holes, before a battery pack is fixed, if different types of batteries possibly need to be matched with the socket 32, so that the wiring seat 31 with the matched socket 32 is selected, the connecting wires 12 and the socket 32 can be electrified, then the bottom limiting strips 33 are inserted into the limiting strips 33 on the top end of the protection plate 11, then the fixing bolts 34 penetrate through the limiting strips 33 on the top end of the top end, threaded holes of the limiting strips 33 are screwed into the threaded holes, the fixing bolts 34 are screwed into the positions, the fixing bolts 34 are screwed into the threaded holes, the holes, and the fixing bolts are convenient to be easily mounted, and the fixing the battery pack is not matched with the top holes and is easy to move and is fixed to be further matched with the top to the top and is convenient to extend to the top and is easy to move.
Two sets of spacing 33 are the symmetry and set up in the right side of wire holder 31 from beginning to end, every two spacing 33 of group set up respectively in the right side top and the right side bottom of wire holder 31, the limiting groove has been seted up to the protection shield 11 inboard, this limiting groove inside wall left end and this battery jar inside wall right-hand member intercommunication each other, insert limiting groove with the spacing 33 of bottom, spacing 33 and protection shield 11 top face laminating on top, then pass the expansion hole of spacing 33 on top with fixing bolt 34 screw in the screw hole, fixing bolt 34 passes the expansion hole of spacing 33 of bottom again and continues the downward movement in the screw hole, fixing bolt 34 presses on spacing 33 of top and fixes spacing 33.
Working principle: when the device is used, the screw rod B232 is rotated to be separated from the pressing seat B233, the rotating plate 214 is rotated on the pressing plate A213, then the battery pack is placed in the battery groove, the right side of the battery pack is mutually attached to the right end of the inner side wall of the battery groove, then the rotating plate 214 is rotated to reset, the pressing rod A221 and the pressing rod B222 are placed right above the battery pack, the pressing rod B222 slides in the pressing rod A221, the L-shaped short end of the pressing rod B222 is attached to the left side of the battery pack, the pressing rod B222 slides to drive the pressing plate B231 to slide, the pressing plate B231 drives the pressing seat B233 to slide through the screw rod B232, the pressing seat B233 drives the sliding block 234 to slide in the sliding groove of the protecting plate 11, the pressing rod B222 clamps the left side of the battery pack, the pressing rod A221 is attached to the right side of the battery pack, then the screw rod A212 and the screw rod B232 are rotated by a screw driver, the screw rod A212 rotates downwards in the pressing seat A211, the screw rod B232 rotates downwards in the pressing seat B233, the pressing plate A213 and the pressing plate B231 are pressed down, the pressing plate A213 drives the rotating plate 214 to downwards, the rotating plate 214 drives the pressing strip A221 to downwards, the pressing plate B231 drives the pressing strip B222 to downwards, the pressing strip A221 and the pressing strip B222 are driven to press and fix the battery pack, the more rotating screw B232 enables the screw B232 to regulate the pressing plate B231 to be close to the sliding block 234, the sliding grooves of the sliding block 234 are tightly attached, the sliding block 234 is fixed through friction between the sliding block 234 and the sliding grooves, the position of the pressing plate B231 is limited and fixed, the pressing strip B222 is prevented from sliding in the pressing strip A221 at will, the pressing strip A221 and the pressing strip B222 are prevented from sliding in the battery pack at will through friction, the pressing strip B222 and the pressing strip A221 are enabled to clamp and limit and fix the battery pack in the battery groove, and thus battery packs with different sizes are convenient to fix, and when the width of the battery pack is narrower, it can be understood that when the battery pack is not attached to the inner side wall of the battery groove front and back, the tightening force is enough to limit the battery pack, before the battery pack is fixed, if different types of batteries are likely to be matched with different sockets 32, the wire holder 31 with the matched socket 32 is selected, after the connecting wire 12 is connected with the wire holder 31, the connecting wire 12 and the socket 32 can be electrified, then the bottom limit bar 33 is inserted into the limit groove, the limit bar 33 at the top is attached to the top surface of the protection plate 11, then the fixing bolt 34 passes through the expansion hole of the limit bar 33 at the top and is screwed into the threaded hole, and the fixing bolt 34 passes through the expansion hole of the limit bar 33 at the bottom and continuously moves downwards in the threaded hole, so that the limit bar 33 is fixed, the power supply port of the battery pack is conveniently matched with the socket 32, the installation and fixation are convenient, the operation is simple, and the battery pack with different types is conveniently applied.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (7)
1. A lithium battery package protection shield, its characterized in that: the battery pack protection device comprises a protection mechanism (1), wherein the protection mechanism (1) comprises a protection plate (11) and a connecting wire (12), the connecting wire (12) is arranged on one side of the protection plate (11), a battery groove is formed in the protection mechanism (1), and a pressing mechanism (2) which is convenient to fix a battery pack is arranged at the position, corresponding to the battery groove, of the protection mechanism (1);
The compressing mechanism (2) comprises a pressing component (21), a telescopic component (22) and an adjusting component (23), wherein the pressing component (21) is arranged on the left side of the battery groove, the telescopic component (22) is arranged on the pressing component (21), the adjusting component (23) is arranged on the left side of the telescopic component (22), and the adjusting component (23) is arranged on the inner side of the protective plate (11).
2. The lithium battery pack protection plate according to claim 1, wherein: the pressing assembly (21) comprises a pressing seat A (211), a screw rod A (212), a pressing plate A (213) and a rotating plate (214), wherein a mounting hole A is formed in the inner side of the top end of the protection plate (11), the pressing seat A (211) is fixedly connected to the inner side of the mounting hole A, the screw rod A (212) is connected to the inner side of the pressing seat A (211) in a threaded manner, the pressing plate A (213) is connected to the outer side of the screw rod A (212) in a sliding manner, and the left end of the pressing plate A (213) is connected with the rotating plate (214) in a rotating manner through a rotating shaft.
3. The lithium battery pack protection plate according to claim 2, wherein: a pressing groove is formed in the inner side of the pressing plate A (213), and the screw A (212) is arranged in the inner side of the pressing groove.
4. A lithium battery pack protection plate according to claim 3, wherein: the telescopic component (22) comprises a pressing strip A (221) and a pressing strip B (222), the left end of the rotary plate (214) is fixedly connected with the pressing strip A (221), the inner side of the pressing strip A (221) is connected with the pressing strip B (222) in a sliding mode, and the pressing strip A (221) and the pressing strip B (222) are all in an L-shaped arrangement.
5. The lithium battery pack protection plate according to claim 4, wherein: the adjusting component (23) comprises a pressing plate B (231), a screw rod B (232), a pressing seat B (233) and a sliding block (234), the left end of the pressing plate B (222) is fixedly connected with the pressing plate B (231), two mounting holes B are formed in the inner side of the pressing plate B (231), the two mounting holes B are symmetrically formed in the front and back on the pressing plate B (231), the inner side of the mounting holes B is slidably connected with the screw rod B (232), the outer side of the screw rod B (232) is in threaded connection with the pressing seat B (233), the outer side of the bottom end of the pressing seat B (233) is fixedly connected with the sliding block (234), two sliding grooves are formed in the inner side of the protecting plate (11), and the cross sections of the sliding grooves are in a convex shape.
6. The lithium battery pack protection plate according to claim 1, wherein: the utility model discloses a protection mechanism, including protection mechanism (1), install on protection mechanism (1) user's expansion mechanism (3) of expanding wiring operation, expansion mechanism (3) are including connection terminal seat (31), socket (32), spacing (33) and fixing bolt (34), this battery jar inside wall sliding connection have connection terminal seat (31), terminal seat (31) right-hand member with battery jar inside wall right side of protection shield (11) laminating each other, terminal seat (31) left side top fixedly connected with socket (32), terminal seat (31) right-hand member fixedly connected with two sets of spacing (33), expansion hole has been seted up to spacing (33) inboard, threaded hole has been seted up to the position department that this expansion hole was corresponding to protection shield (11) inside wall sliding connection have fixing bolt (34), fixing bolt (34) outside and this threaded hole threaded connection.
7. The lithium battery pack protection plate according to claim 6, wherein:
Two sets of spacing (33) are the fore-and-aft symmetry and set up the right side of connection terminal (31), every two sets of spacing (33) set up respectively the right side top and the right side bottom of connection terminal (31), the spacing groove has been seted up to protection shield (11) inboard, and this spacing groove inside wall left end communicates each other with this battery jar inside wall right-hand member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322383045.9U CN220821873U (en) | 2023-09-04 | 2023-09-04 | Lithium battery pack protection board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322383045.9U CN220821873U (en) | 2023-09-04 | 2023-09-04 | Lithium battery pack protection board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821873U true CN220821873U (en) | 2024-04-19 |
Family
ID=90712000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322383045.9U Active CN220821873U (en) | 2023-09-04 | 2023-09-04 | Lithium battery pack protection board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821873U (en) |
-
2023
- 2023-09-04 CN CN202322383045.9U patent/CN220821873U/en active Active
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