CN216709436U - Automobile body side wall structure and vehicle - Google Patents
Automobile body side wall structure and vehicle Download PDFInfo
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- CN216709436U CN216709436U CN202122997156.XU CN202122997156U CN216709436U CN 216709436 U CN216709436 U CN 216709436U CN 202122997156 U CN202122997156 U CN 202122997156U CN 216709436 U CN216709436 U CN 216709436U
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Abstract
The utility model provides a side wall structure of a vehicle body and a vehicle, and relates to the technical field of vehicles. The side wall structure of the vehicle body comprises a side wall outer plate assembly and a side wall inner plate assembly; the side wall outer plate assembly is formed by mutually connecting a general part of the side wall outer plate and a special part of the side wall outer plate; the side wall inner plate assembly is formed by mutually connecting a plurality of side wall inner plate universal parts and a plurality of side wall inner plate special parts. The side wall structure of the automobile body comprises a plurality of universal parts and a plurality of special parts which are connected with each other, and the parts can be high in generalization rate through a platform design, so that the development period is shortened, the development cost is saved, and the development risk is reduced.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a vehicle body side wall structure and a vehicle.
Background
With the increasing severity of environmental pollution and the reduction of energy sources, energy conservation and emission reduction become important indexes and requirements of automobile design, the endurance of the automobile can be increased by about 10% when the weight of the automobile is reduced by 100 kilograms, the weight of the automobile body accounts for more than 30% of the total mass of the automobile, and the lightweight design of the automobile body is particularly important. In order to achieve the aim of light weight of the vehicle, in the prior art, a side wall structure of the vehicle is improved. But the side wall structure adopts an integral design, the size of parts is large, the generalization rate is low, the development period of the die is long, and the cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the first aspect of the present invention is to provide a vehicle body side wall structure, which solves the problems of low generalization rate, long development period and high cost in the prior art.
Another object of the first aspect of the present invention is to solve the problem of high weight of the side wall frame.
It is an object of a second aspect of the present invention to provide a vehicle incorporating the body side surrounding structure described above.
Particularly, the utility model provides a side wall structure of a vehicle body, which comprises a side wall outer plate assembly and a side wall inner plate assembly; the side wall outer plate assembly is formed by mutually connecting a general part of the side wall outer plate and a special part of the side wall outer plate; the side wall inner plate assembly is formed by mutually connecting a plurality of side wall inner plate universal parts and a plurality of side wall inner plate special parts.
Optionally, the universal part of the side wall outer plate comprises a front section of the side wall outer plate, a middle section of the side wall outer plate and a rear side wall gutter channel, and the special part of the side wall outer plate comprises a rear section of the side wall outer plate; the front section of the side wall outer plate, the middle section of the side wall outer plate, the rear section of the side wall outer plate and the rear side wall gutter channel are sequentially connected to form the side wall outer plate assembly.
Optionally, the front section of the side wall outer plate, the middle section of the side wall outer plate, the rear section of the side wall outer plate and the rear side wall gutter channel are welded together in sequence to form the side wall outer plate assembly.
Optionally, the side wall inner panel assembly includes the side wall skeleton, the side wall skeleton includes first side wall inner panel subassembly, second side wall inner panel subassembly and the third side wall inner panel subassembly that connects gradually, wherein, first side wall inner panel subassembly with the third side wall inner panel subassembly is by a plurality of general interconnect of side wall planking forms, second side wall inner panel subassembly then by special part of side wall planking with general interconnect of side wall planking forms.
Optionally, the first side wall inner plate assembly comprises an a pillar assembly, a B pillar assembly, a C pillar assembly, a first side wall middle cross beam, a first longitudinal beam and a second longitudinal beam; the column A assembly comprises a column A inner plate, a column A reinforcing plate and a column A lower inner plate, the column A inner plate and the column A reinforcing plate are arranged in a stacked mode, and the end portions of the column A inner plate and the column A lower inner plate are connected; the B column assembly comprises a B column inner plate and a B column reinforcing plate; the upper ends of the column A inner plate and the column B inner plate are connected with each other; the C column assembly comprises a first C column lower connecting plate and a C column lower supporting frame; the first longitudinal beam, the second longitudinal beam, the C-pillar lower support frame and the B-pillar inner plate are all arranged along a first preset direction, the first side wall middle cross beam and the first C-pillar lower connecting plate are arranged along a second preset direction, and the first preset direction is basically perpendicular to the second preset direction; the lower end of the C-column lower support is connected with the middle position of the first C-column lower connecting plate, and the upper end of the C-column lower support is connected with the middle position of the first C-column lower connecting plate; the second longitudinal beam and the B column inner plate are respectively connected to two ends of the first side wall middle cross beam.
Optionally, the side wall inner plate general part in the second side wall inner plate assembly comprises a third longitudinal beam, a side wall frame beam joint and a rear wheel cover, and the side wall inner plate special part in the second side wall inner plate assembly comprises a side wall upper cross beam, a second side wall middle cross beam, a second C-pillar lower connecting plate and a third C-pillar lower connecting plate; the third longitudinal beam and the side wall frame beam joint extend along the preset direction, the special part for the side wall outer plate in the second side wall inner plate assembly extends along the second preset direction, the side wall upper cross beam and the third longitudinal beam are arranged on the side wall upper cross beam, the second side wall middle cross beam and the side wall frame beam joint are sequentially arranged with the rear wheel cover, and the second C column lower connecting plate and the third C column lower connecting plate are located on two sides of the side wall frame beam joint and are connected with the rear wheel cover.
Optionally, the third side wall inner plate assembly includes a top cover rear beam connecting plate and a D-pillar inner plate, and one end of the top cover rear beam connecting plate is connected with one end of the D-pillar inner plate.
Optionally, the B-pillar inner plate is of a T-shaped structure, the right end of the upper surface of the B-pillar inner plate is connected with the A-pillar inner plate, and the left end of the upper surface of the B-pillar inner plate is connected with the side wall upper cross beam; the upper end of the second longitudinal beam is connected with the side wall upper cross beam; one end of the second side wall middle cross beam is connected with the second longitudinal beam, and the other end of the second side wall middle cross beam is connected with the D column inner plate; one end of the first C-column lower connecting plate is connected with the second longitudinal beam, one end of the second C-column lower connecting plate is connected with the second longitudinal beam, the other end of the second C-column lower connecting plate is connected with the rear wheel cover, one end of the third C-column lower connecting plate is connected with the rear wheel cover, and the other end of the third C-column lower connecting plate is connected with the D-column inner plate.
Optionally, the first side wall middle cross beam and the second side wall middle cross beam are located on a same first straight line extending along the first preset direction; the first C-column lower connecting plate, the second C-column lower connecting plate and the third C-column lower connecting plate are positioned on a second straight line extending along the first preset direction;
the first longitudinal beam and the C-pillar lower reinforcing plate are positioned on a third straight line extending along the second preset direction; and the third longitudinal beam and the side wall frame beam joint are positioned on the same fourth straight line extending along the second preset direction.
In particular, the utility model also provides a vehicle comprising the body side surrounding structure described above.
The side wall structure of the automobile body comprises a plurality of universal parts and a plurality of special parts which are connected with each other, and the parts can be high in generalization rate through a platform design, so that the development period is shortened, the development cost is saved, and the development risk is reduced.
The side wall framework is mainly formed by mutually connecting and combining a plurality of small and fragmentary parts, the parts with large size, difficult forming and high die cost are decomposed, the development of the side wall structural design of each vehicle type is completed through the combination of special parts and universal parts, and the generalization rate of the parts can be improved, the utilization rate of materials is improved, the development cost is reduced and the weight of a vehicle body is reduced on the premise of ensuring that various performances meet requirements.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of a quarter panel assembly according to one embodiment of the utility model;
fig. 2 is a schematic structural view of a side wall frame according to an embodiment of the present invention;
fig. 3 is a schematic exploded view of a side gusset frame according to an embodiment of the present invention.
Description of the reference numerals:
100-body side frame structure, 10-side frame outer plate assembly, 20-side frame inner plate assembly, 11-side frame outer plate common component, 12-side frame outer plate special component, 21-side frame inner plate common component, 22-side frame inner plate special component, 23-first side frame inner plate component, 24-second side frame inner plate component, 25-third side frame inner plate component, 111-side frame outer plate front segment, 112-side frame outer plate middle segment, 113-side frame rear water flowing groove, 121-side frame outer plate rear segment, 201-A column component, 202-B column component, 203-C column component, 204-first side frame middle cross beam, 205-first longitudinal beam, 206-second longitudinal beam, 207-A column inner plate, 208-A column reinforcing plate, 209-A column lower inner plate, 210-B column inner plate, 211-B column reinforcing plate, 212-a first C column lower connecting plate, 213-a C column lower supporting frame, 241-a third longitudinal beam, 242-a side wall frame beam joint, 243-a rear wheel cover, 221-a side wall upper cross beam, 222-a second side wall middle cross beam, 223-a second C column lower connecting plate, 224-a third C column lower connecting plate, 251-a top cover rear cross beam connecting plate and 252-a D column inner plate.
Detailed Description
FIG. 1 is a schematic block diagram of a quarter panel assembly according to one embodiment of the utility model. As a specific embodiment of the present invention, the present embodiment provides a body side surrounding structure 100, and the body side surrounding structure 100 may include a side surrounding outer panel assembly 10 and a side surrounding inner panel assembly 20. The side wall outer plate assembly 10 is formed by mutually connecting a general part 11 of the side wall outer plate and a special part 12 of the side wall outer plate. The side wall inner plate assembly 20 is formed by connecting a plurality of side wall inner plate general parts 21 and a plurality of side wall inner plate special parts 22.
The body side wall structure 100 in this embodiment includes a plurality of general parts and a plurality of special parts that are connected to each other, and can make the parts have high generalization rate through the platform design, reduce the development cycle, save the development cost, and reduce the development risk.
As a specific embodiment of the present invention, the side wall outer panel general part 11 of this embodiment may include a side wall outer panel front section 111, a side wall outer panel middle section 112, and a side wall rear launder 113, and the side wall outer panel special part 12 may include a side wall outer panel rear section 121. Wherein, the front section 111 of the side wall outer plate, the middle section 112 of the side wall outer plate, the rear section 121 of the side wall outer plate and the side wall rear launder 113 are connected in sequence to form the side wall outer plate assembly 10.
The universal part 11 of the side wall outer plate in the embodiment comprises a front section 111 of the side wall outer plate, a middle section 112 of the side wall outer plate and a rear side wall launder 113, and the special part only comprises a rear section 121 of the side wall outer plate. In the actual design process, vehicles of different models only need to be designed independently on the side wall outer plate rear section 121, and other vehicles can adopt universal parts in the platform and are connected with each other to form the side wall outer plate assembly 10, so that the design period and the cost of the parts are greatly reduced.
As a specific embodiment of the present invention, the quarter outer panel front section 111, the quarter outer panel middle section 112, the quarter outer panel rear section 121, and the quarter rear launder 113 of this embodiment are welded together in sequence to form the quarter outer panel assembly 10. Specifically, the quarter outer panel front section 111, the quarter outer panel middle section 112, the quarter outer panel rear section 121, and the quarter rear launder 113 of the present embodiment are welded together by spot welding.
As a specific embodiment of the present invention, the side wall inner panel assembly 20 of the present embodiment may include a side wall frame, and the side wall frame may include a first side wall inner panel assembly 23, a second side wall inner panel assembly 24, and a third side wall inner panel assembly 25 connected in sequence, wherein the first side wall inner panel assembly 23 and the third side wall inner panel assembly 25 are formed by connecting a plurality of side wall outer panel general parts 11 to each other, and the second side wall inner panel assembly 24 is formed by connecting the side wall outer panel special-purpose part 12 and the side wall outer panel general part 11 to each other.
The side wall inner panel assembly 20 of this embodiment can include the first side wall inner panel assembly 23 that connects gradually, second side wall inner panel assembly 24 and third side wall inner panel assembly 25, and first side wall inner panel assembly 23 and third side wall inner panel assembly 25 are formed by a plurality of general parts 11 interconnect of side wall planking, and second side wall inner panel assembly 24 is then formed by special part 12 of side wall planking and general part 11 interconnect of side wall planking, it is also that the side wall outer panel assembly 10 of this embodiment mainly has general parts to constitute, therefore the platformization rate is high, make development cycle short, and is with low costs.
As a specific example of the present invention, the first side wall inner panel assembly 23 of the present example of the present embodiment is located on the rightmost side in the drawing, which corresponds to the vehicle head position of the vehicle. The first side panel assembly 23 may include an a-pillar assembly 201, a B-pillar assembly 202, a C-pillar assembly 203, a first side panel center sill 204, a first side rail 205, and a second side rail 206. The a-pillar assembly 201 may include an a-pillar inner panel 207, an a-pillar reinforcement panel 208, and an a-pillar lower inner panel 209, where the a-pillar inner panel 207 and the a-pillar reinforcement panel 208 are stacked, and ends of the a-pillar inner panel 207 and the a-pillar lower inner panel 209 are connected. The B-pillar assembly 202 includes a B-pillar inner panel 210 and a B-pillar reinforcement panel 211. The upper ends of the a-pillar inner panel 207 and the B-pillar inner panel 210 are connected to each other; the C-pillar assembly 203 may include a first C-pillar lower connecting plate 212 and a C-pillar lower support frame 213. The first longitudinal beam 205, the second longitudinal beam 206, the C-pillar lower support frame 213 and the B-pillar inner panel 210 are all arranged along a first preset direction, and the first side-wall middle cross beam 204 and the first C-pillar lower connecting plate 212 are arranged along a second preset direction, which is substantially perpendicular to the first preset direction. Specifically, in this embodiment, the first preset direction may be a vertical direction, and the second preset direction may be a horizontal direction. The lower end of the C-pillar lower support bracket 213 is connected with the middle position of the first C-pillar lower connecting plate 212, and the upper end is connected with the middle position of the first C-pillar lower connecting plate 212. The second longitudinal beam 206 and the B-pillar inner panel 210 are respectively connected to two ends of the first side wall middle cross beam 204.
As a specific embodiment of the present invention, the second side wall inner plate assembly 24 of the present embodiment is located at the middle position of the whole side wall frame. Specifically, the side wall inner plate common parts in the second side wall inner plate assembly 24 of the embodiment include a third longitudinal beam 241, a side wall frame beam joint 242 and a rear wheel cover 243, and the side wall outer plate special-purpose part 22 in the second side wall inner plate assembly 24 includes a side wall upper cross beam 221, a second side wall middle cross beam 222, a second C-pillar lower connecting plate 223 and a third C-pillar lower connecting plate 224. The third longitudinal beam 241 and the side wall frame beam joint 242 extend along a preset direction, the special side wall outer plate 12 in the second side wall inner plate assembly 24 is arranged along the second preset direction, the side wall upper cross beam 221, the third longitudinal beam 241, the second side wall middle cross beam 222, the side wall frame beam joint 242 and the rear wheel cover 243 are sequentially arranged, and the second C-pillar lower connecting plate 223 and the third C-pillar lower connecting plate 224 are located on two sides of the side wall frame beam joint 242 and are connected with the rear wheel cover 243.
As a specific embodiment of the present invention, the third side surrounding inner plate assembly 25 is located on the left side of the entire side surrounding frame, which corresponds to the rear position of the vehicle. The third side wall inner plate assembly 25 of the present embodiment includes a top cover rear beam connection plate 251 and a D-pillar inner plate 252, and one end of the top cover rear beam connection plate 251 is connected to one end of the D-pillar inner plate 252.
As a specific embodiment of the present invention, the B-pillar inner panel 210 of this embodiment is a T-shaped structure, and the right end of the upper surface of the B-pillar inner panel is connected to the a-pillar inner panel 207, and the left end of the upper surface is connected to the side wall upper cross beam 221. The upper end of the second longitudinal beam 206 is connected with the side wall upper cross beam 221. One end of the second side rail middle cross member 222 is connected to the second longitudinal member 206, and the other end is connected to the D-pillar inner panel 252. One end of the first C-pillar lower connecting plate 212 is connected to the second longitudinal beam 206, one end of the second C-pillar lower connecting plate 223 is connected to the second longitudinal beam 206, the other end is connected to the rear wheel house 243, one end of the third C-pillar lower connecting plate 224 is connected to the rear wheel house 243, and the other end is connected to the D-pillar inner plate 252.
In the embodiment, the side wall framework is mainly formed by mutually connecting and combining a plurality of small and fragmentary parts, parts with large size, difficult forming and high die cost are decomposed, and the development of the side wall structural design of each vehicle type is completed through the combination of special parts and universal parts. On the premise of ensuring that various performances meet the requirements, the method can improve the generalization rate of parts, improve the utilization rate of materials, reduce the development cost and reduce the weight of the vehicle body.
As a specific embodiment of the present invention, the first side wall middle cross member 204 and the second side wall middle cross member 222 of the present embodiment are located on the same first straight line extending along the first preset direction. The first C-pillar lower connecting plate 212, the second C-pillar lower connecting plate 223 and the third C-pillar lower connecting plate 224 are located on a same second straight line extending along the first preset direction. The first longitudinal beam 205 and the C-pillar lower reinforcing plate are located on the same third straight line extending along the second preset direction. The third longitudinal beam 241 and the side wall frame beam joint 242 are located on the same fourth straight line extending along the second preset direction.
The embodiment is based on automobile body atress transmission route, and the side wall skeleton carries out reasonable arrangement, and the side wall skeleton adopts a plurality of part welding, and the different combinations of a plurality of motorcycle types accessible parts realize, and part material utilization is high, and side wall skeleton light in weight to the actual atress is reasonable.
By adopting the structure, the cost of the 100-degree mould of the side wall structure of the car body can be reduced by 10 percent, the development period can be reduced by 2 months, and the weight is reduced by about 10 KG. In addition, for different vehicle types, only special parts need to be developed, and development of new vehicle types is realized by combining and matching universal parts, so that the development period is greatly shortened, and the development cost is reduced.
As a specific example of the present invention, a vehicle of the present embodiment may include the body side surrounding structure 100 described above.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A side wall structure of a vehicle body is characterized by comprising a side wall outer plate assembly and a side wall inner plate assembly; the side wall outer plate assembly is formed by mutually connecting a general part of the side wall outer plate and a special part of the side wall outer plate; the side wall inner plate assembly is formed by mutually connecting a plurality of side wall inner plate universal parts and a plurality of side wall inner plate special parts.
2. The vehicle body side wall structure according to claim 1,
the universal part of the side wall outer plate comprises a front section of the side wall outer plate, a middle section of the side wall outer plate and a rear side wall flume, and the special part of the side wall outer plate comprises a rear section of the side wall outer plate; the front section of the side wall outer plate, the middle section of the side wall outer plate, the rear section of the side wall outer plate and the rear side wall gutter channel are sequentially connected to form the side wall outer plate assembly.
3. The vehicle body side wall structure according to claim 2,
the front section of the side wall outer plate, the middle section of the side wall outer plate, the rear section of the side wall outer plate and the rear side wall gutter channel are welded together in sequence to form the side wall outer plate assembly.
4. The vehicle body side wall structure according to any one of claims 1 to 3,
the side wall inner panel assembly includes the side wall skeleton, the side wall skeleton is including the first side wall inner panel subassembly, second side wall inner panel subassembly and the third side wall inner panel subassembly that connect gradually, wherein, the first side wall inner panel subassembly with the third side wall inner panel subassembly is by a plurality of the general part interconnect of side wall planking forms, the second side wall inner panel subassembly then by special-purpose part of side wall planking with the general part interconnect of side wall planking forms.
5. The vehicle body side wall structure according to claim 4,
the first side wall inner plate assembly comprises an A column assembly, a B column assembly, a C column assembly, a first side wall middle cross beam, a first longitudinal beam and a second longitudinal beam; the column A assembly comprises a column A inner plate, a column A reinforcing plate and a column A lower inner plate, the column A inner plate and the column A reinforcing plate are arranged in a stacked mode, and the end portions of the column A inner plate and the column A lower inner plate are connected; the B column assembly comprises a B column inner plate and a B column reinforcing plate; the upper ends of the column A inner plate and the column B inner plate are connected with each other; the C column assembly comprises a first C column lower connecting plate and a C column lower supporting frame; the first longitudinal beam, the second longitudinal beam, the C-pillar lower support frame and the B-pillar inner plate are all arranged along a first preset direction, the first side wall middle cross beam and the first C-pillar lower connecting plate are arranged along a second preset direction, and the first preset direction is basically perpendicular to the second preset direction; the lower end of the C-column lower support is connected with the middle position of the first C-column lower connecting plate, and the upper end of the C-column lower support is connected with the middle position of the first C-column lower connecting plate; the second longitudinal beam and the B column inner plate are respectively connected to two ends of the first side wall middle cross beam.
6. The vehicle body side wall structure according to claim 5,
the side wall inner plate universal part in the second side wall inner plate assembly comprises a third longitudinal beam, a side wall frame beam joint and a rear wheel cover, and the side wall inner plate special part in the second side wall inner plate assembly comprises a side wall upper cross beam, a second side wall middle cross beam, a second C column lower connecting plate and a third C column lower connecting plate; the third longitudinal beam and the side wall frame beam joint extend along the preset direction, the special part for the side wall outer plate in the second side wall inner plate assembly extends along the second preset direction, the side wall upper cross beam and the third longitudinal beam are arranged on the side wall upper cross beam, the second side wall middle cross beam and the side wall frame beam joint are sequentially arranged with the rear wheel cover, and the second C column lower connecting plate and the third C column lower connecting plate are located on two sides of the side wall frame beam joint and are connected with the rear wheel cover.
7. The vehicle body side wall structure according to claim 6,
the third side wall inner plate assembly comprises a top cover rear beam connecting plate and a D column inner plate, and one end of the top cover rear beam connecting plate is connected with one end of the D column inner plate.
8. The vehicle body side wall structure according to claim 7,
the B column inner plate is of a T-shaped structure, the right end of the upper surface of the B column inner plate is connected with the A column inner plate, and the left end of the upper surface of the B column inner plate is connected with the side wall upper cross beam; the upper end of the second longitudinal beam is connected with the side wall upper cross beam; one end of the second side wall middle cross beam is connected with the second longitudinal beam, and the other end of the second side wall middle cross beam is connected with the D column inner plate; one end of the first C-column lower connecting plate is connected with the second longitudinal beam, one end of the second C-column lower connecting plate is connected with the second longitudinal beam, the other end of the second C-column lower connecting plate is connected with the rear wheel cover, one end of the third C-column lower connecting plate is connected with the rear wheel cover, and the other end of the third C-column lower connecting plate is connected with the D-column inner plate.
9. The vehicle body side wall structure according to claim 8,
the first side wall middle cross beam and the second side wall middle cross beam are positioned on a first straight line extending along the first preset direction; the first C-column lower connecting plate, the second C-column lower connecting plate and the third C-column lower connecting plate are positioned on a second straight line extending along the first preset direction;
the first longitudinal beam and the C-pillar lower reinforcing plate are positioned on a third straight line extending along the second preset direction; and the third longitudinal beam and the side wall frame beam joint are positioned on the same fourth straight line extending along the second preset direction.
10. A vehicle characterized by comprising the body side surrounding structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997156.XU CN216709436U (en) | 2021-11-29 | 2021-11-29 | Automobile body side wall structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997156.XU CN216709436U (en) | 2021-11-29 | 2021-11-29 | Automobile body side wall structure and vehicle |
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| Publication Number | Publication Date |
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| CN216709436U true CN216709436U (en) | 2022-06-10 |
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| CN202122997156.XU Active CN216709436U (en) | 2021-11-29 | 2021-11-29 | Automobile body side wall structure and vehicle |
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- 2021-11-29 CN CN202122997156.XU patent/CN216709436U/en active Active
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