CN112744059A - Automobile sliding door guide rail and machining process - Google Patents
Automobile sliding door guide rail and machining process Download PDFInfo
- Publication number
- CN112744059A CN112744059A CN202011605070.1A CN202011605070A CN112744059A CN 112744059 A CN112744059 A CN 112744059A CN 202011605070 A CN202011605070 A CN 202011605070A CN 112744059 A CN112744059 A CN 112744059A
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- CN
- China
- Prior art keywords
- guide rail
- sliding door
- rail body
- door guide
- tongue
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/06—Doors arranged at the vehicle sides slidable; foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D15/0626—Details, e.g. suspension or supporting guides for wings suspended at the top
- E05D15/0652—Tracks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to an automobile sliding door guide rail and a processing technology, wherein the automobile sliding door guide rail comprises a guide rail body, the guide rail body is formed by bending a steel strip plate, a tongue-and-groove slide rail structure is formed on the guide rail body along the length direction of the guide rail body, reinforcing plates are respectively and fixedly connected to two sides of the guide rail body in an integrated forming mode, and high-strength paint is sprayed on the inner surface and the outer surface of the guide rail body. This car sliding door guide rail designs into tongue-and-groove slide rail structure, when sliding door slip inlays the tongue-and-groove of establishing on the guide rail body in, compares in traditional groove structure's guide rail, is difficult for taking place the phenomenon that the sliding door drops for sliding in the guide rail that the sliding door can be stable, improved car sliding door's life. And the reinforcing plate obviously improves the mechanical property of the guide rail body, so that the guide rail body is not easy to deform after being subjected to external force, and the structural strength of the guide rail body is improved.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to an automobile sliding door guide rail and a processing technology thereof.
Background
The vehicle middle door sliding rail is commonly called as an automobile guide rail, is a guide and bearing component of an automobile sliding door, is widely applied to business vehicles with push-pull type middle doors, is an essential part of the types of vehicles, is formed by compounding PVC plastic and a steel belt in the structure of the vehicle middle door guide rail which is widely used at present, is formed by wrapping PVC plastic on the surface, and has the defects of low surface material strength, easy damage and complex processing technology.
In the prior art, as disclosed in chinese patent publication No. CN106522714B, a technology for processing a car sliding door guide rail includes the steps of preforming, sawing, forming, electrophoresis, and fitting accessories, and a protective film is attached to a bearing surface of the guide rail before electrophoresis, and is removed after electrophoresis is completed.
The above prior art solutions have the following drawbacks: although the electrophoresis operation is carried out on the surface of the guide rail by the processing technology, the surface of the guide rail is coated with the electrophoresis coating layer, so that the appearance of the guide rail is attractive, and the guide rail has good corrosion resistance. But its whole is recess shape structure, and structural strength is lower, uses the back for a long time, because the outside collision makes the condition that limit edge takes place buckling deformation very easily to make the door that slides can not be stable slide in the guide rail, reduced the life of car sliding door.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automobile sliding door guide rail and a processing technology thereof, wherein the guide rail is designed into a tongue-and-groove shape, and a high-strength coating layer is coated on the surface of the guide rail; the invention also provides the automobile sliding door guide rail produced by the processing technology, and the sliding door guide rail has high structural strength and is not easy to deform, so that the sliding door can stably slide in the guide rail, and the service life of the automobile sliding door is prolonged.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a car sliding door guide rail, includes the guide rail body, the guide rail body is formed by a steel band panel bending, the guide rail body forms a tongue-and-groove slide rail structure on along its length direction, the both sides of the guide rail body integrated into one piece fixedly connected with reinforcing plate respectively, the inside and outside surface spraying of guide rail body has high strength coating.
Through above-mentioned technical scheme, this car sliding door guide rail designs into tongue-and-groove slide rail structure, when the sliding door slip inlays the tongue-and-groove of establishing on the guide rail body in, compares in traditional groove structure's guide rail, is difficult for taking place the phenomenon that the sliding door drops for sliding in the guide rail that the sliding door can be stable, improved car sliding door's life. And the reinforcing plate obviously improves the mechanical property of the guide rail body, so that the guide rail body is not easy to deform after being subjected to external force, and the structural strength of the guide rail body is improved.
The steel strip plate is formed by prebending, the rigidity and the stability are good, and the section size is easy to control, so that the product quality is ensured. High-strength paint is sprayed on the guide rail body, so that the structural strength of the guide rail body is further improved, the corrosion resistance of the guide rail body is improved, and the attractiveness is enhanced.
The present invention in a preferred example may be further configured to: the guide rail comprises a guide rail body and is characterized in that limiting plates are fixedly connected to two sides of the interior of the guide rail body respectively, and waist-shaped grooves are formed in the limiting plates along the length direction of the limiting plates.
Through above-mentioned technical scheme, the limiting plate setting provides powerful holding power in the guide rail for the both sides of guide rail body are difficult for having guaranteed its structural strength towards the inside phenomenon that takes place to warp after receiving external force. Meanwhile, the limiting groove in the limiting plate can limit the sliding door, so that the sliding door can stably slide in the guide rail.
The present invention in a preferred example may be further configured to: a plurality of mounting holes for fixing bolts are formed in the guide rail body.
Through the technical scheme, the equipment of the mounting hole is convenient for the guide rail body to be mounted on the automobile through the bolt, and the practicability is improved.
The present invention in a preferred example may be further configured to: the high-strength coating is prepared by mixing and heating thermoplastic polyurethane and polyurea according to a certain proportion.
Through the technical scheme, the high-strength coating is a Line-x protective coating, and is a quick drying multipurpose series coating. The coating exhibits excellent adhesion surface and can be sprayed vertically without running down with its fast curing time. There is no residual solvent, which means no air contamination or environmental pollution.
And the guide rail body can resist most solvents and acid, and the Line-x protective coating greatly prolongs the service life of the vehicle sliding door guide rail. It provides excellent impact resistance and excellent tensile strength (up to 6600 pounds) resulting in a rail body with excellent wear resistance.
A machining process for a guide rail of an automobile sliding door comprises the following steps:
s1, performing, namely forming limiting holes in limiting plates made of metal materials by using a punching machine, symmetrically welding the two limiting plates on the same side of a steel strip plate by using the central line of the steel strip plate in the length direction, and bending the steel strip plate into a tongue-and-groove slide rail structure with a reinforcing plate by using a pre-bending machine;
s2, performing saw cutting forming, cutting off the redundant part of the reinforcing plate by using a saw cutting machine, and then trimming the shape of the guide rail body by using a special die;
s3, spraying, namely mixing the thermoplastic polyurethane and the polyurea raw materials according to a certain proportion, heating to 120-140 ℃, mixing the heating pipe to a polyurethane spraying machine at high pressure, and spraying the inner surface and the outer surface of the guide rail body by the polyurethane spraying machine;
s4, drying, namely conveying the guide rail body into a drying chamber for drying, and curing the high-strength coating;
and S5, mounting through holes, forming a plurality of mounting holes at the bottom of the mortise of the guide rail body, and mounting bolts in the mounting holes to obtain the sliding door guide rail.
Through the technical scheme, the sliding door guide rail manufactured by the production process has good structural rigidity in the structure, and is not easy to deform when being subjected to external force. And the inner surface and the outer surface of the guide rail body are sprayed with high-strength coating, so that the structural strength and the corrosion resistance of the guide rail body are further improved. Meanwhile, the sliding door is not easy to fall off due to the tongue-and-groove type guide rail, and the sliding stability of the sliding door is improved. The whole production process is simple and convenient, is easy to operate and has strong economic popularization value.
The present invention in a preferred example may be further configured to: in step S3, the thermoplastic polyurethane is mixed with the polyurea in a ratio of 1: 1.
By the technical scheme, the thermoplastic polyurethane and the polyurea can be fully mixed according to the proportion, and certain basic conditions are provided for generating the high-strength coating.
The present invention in a preferred example may be further configured to: in step S4, the temperature of the drying chamber is 190 ℃ and the baking time is 40 min.
Through the technical scheme, the guide rail body is dried under the condition, the high-strength coating can be stably fixed on the inner surface and the outer surface of the guide rail body, the phenomenon of stripping and peeling is not easy to occur, and therefore the quality of a product is improved.
In summary, the invention includes at least one of the following beneficial technical effects:
1. this car sliding door guide rail designs into tongue-and-groove slide rail structure, when sliding door slip inlays to establish the tongue-and-groove on the guide rail body in, compares in traditional groove structure's guide rail, is difficult for taking place the phenomenon that the door that slides drops for sliding door can be stable slide in the guide rail, has improved the life of car sliding door. And the reinforcing plate obviously improves the mechanical property of the guide rail body, so that the guide rail body is not easy to deform after being subjected to external force, and the structural strength of the guide rail body is improved.
The steel strip plate is formed by prebending, the rigidity and the stability are good, and the section size is easy to control, so that the product quality is ensured. High-strength paint is sprayed on the guide rail body, so that the structural strength of the guide rail body is further improved, the corrosion resistance of the guide rail body is improved, and the attractiveness is enhanced.
2. The limiting plate sets up and provides powerful holding power in the guide rail for the both sides of guide rail body are difficult for taking place the phenomenon of warping towards inside after receiving external force, have guaranteed its structural strength. Meanwhile, the limiting groove in the limiting plate can limit the sliding door, so that the sliding door can stably slide in the guide rail.
3. The sliding door guide rail manufactured by the production process has good structural rigidity on the structure of the sliding door guide rail, and is not easy to deform when being subjected to external force. And the inner surface and the outer surface of the guide rail body are sprayed with high-strength coating, so that the structural strength and the corrosion resistance of the guide rail body are further improved. Meanwhile, the sliding door is not easy to fall off due to the tongue-and-groove type guide rail, and the sliding stability of the sliding door is improved. The whole production process is simple and convenient, is easy to operate and has strong economic popularization value.
Drawings
Fig. 1 is a cross-sectional view of a guide rail body of the present invention.
Fig. 2 is a schematic structural view showing a guide rail body mounting bolt of the present invention.
Fig. 3 is a top view of the present invention showing a limiting plate.
FIG. 4 is a schematic flow chart showing the process of machining the guide rail of the sliding door of the automobile.
Reference numerals: 1. a guide rail body; 2. a reinforcing plate; 3. a high strength coating; 4. a limiting plate; 41. a waist-shaped groove; 5. and (4) bolts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the automobile sliding door guide rail disclosed by the invention comprises a guide rail body 1, wherein the guide rail body 1 is formed by bending a steel strip plate, a tongue-and-groove sliding rail structure is formed on the guide rail body 1 along the length direction of the guide rail body, reinforcing plates 2 are respectively and fixedly connected to two sides of the guide rail body 1 in an integrated manner, and high-strength paint 3 is sprayed on the inner surface and the outer surface of the guide rail body 1.
Referring to fig. 2, the two sides inside the guide rail body 1 are respectively and fixedly connected with a limiting plate 4, and the limiting plate 4 is provided with a waist-shaped groove 41 (see fig. 3) along the length direction thereof. The limiting plate 4 is arranged in the guide rail to provide strong supporting force, so that the two sides of the guide rail body 1 are not easy to deform towards the inside after being subjected to external force, and the structural strength of the guide rail body is ensured. Meanwhile, the limiting groove in the limiting plate 4 can play a limiting role in the sliding door, so that the sliding door can stably slide in the guide rail.
Referring to fig. 2, a plurality of mounting holes for fixing the bolts 5 are formed in the guide rail body 1, and the guide rail body 1 can be conveniently mounted on an automobile through the bolts 5 by the aid of the mounting holes, so that practicability is improved. In this embodiment, the high-strength coating 3 is formed by mixing and heating thermoplastic polyurethane and polyurea in a certain ratio. This high strength paint 3 is a Line-x protective paint, a fast drying multi-purpose series of paints. The coating exhibits excellent adhesion surface and can be sprayed vertically without running down with its fast curing time. There is no residual solvent, which means no air contamination or environmental pollution.
And the guide rail body 1 can resist most solvents and acid, and the Line-x protective coating greatly prolongs the service life of the vehicle sliding door guide rail. It provides excellent impact resistance and excellent tensile strength (up to 6600 pounds) so that the rail body 1 has excellent abrasion resistance.
Referring to fig. 4, the processing technology of the automobile sliding door guide rail comprises the following steps:
s1, performing, namely forming limiting holes in the limiting plates 4 made of metal materials by using a punching machine, symmetrically welding the two limiting plates 4 on the same side of the steel strip plate by using the central line of the length direction of the steel strip plate, and bending the steel strip plate into a tongue-and-groove slide rail structure with the reinforcing plate 2 by using a pre-bending machine;
s2, sawing and forming, namely cutting off the redundant part of the reinforcing plate 2 by using a sawing machine, and then trimming the shape of the guide rail body 1 by using a special die;
s3, spraying, namely mixing the thermoplastic polyurethane and the polyurea raw materials according to a certain proportion, heating to 120-140 ℃, mixing the heating pipe to a polyurethane spraying machine at high pressure, and spraying the inner surface and the outer surface of the guide rail body 1 by the polyurethane spraying machine;
s4, drying, namely conveying the guide rail body 1 into a drying chamber for drying, and curing the high-strength coating 3;
and S5, mounting the sliding door by opening a hole, forming a plurality of mounting holes at the bottom of the mortise of the guide rail body 1, and mounting bolts 5 in the mounting holes to obtain the sliding door guide rail.
The sliding door guide rail manufactured by the production process has good structural rigidity on the structure of the sliding door guide rail, and is not easy to deform when being subjected to external force. And the inner surface and the outer surface of the guide rail body are sprayed with the high-strength coating 3, so that the structural strength and the corrosion resistance of the guide rail body 1 are further improved. Meanwhile, the sliding door is not easy to fall off due to the tongue-and-groove type guide rail, and the sliding stability of the sliding door is improved. The whole production process is simple and convenient, is easy to operate, and has strong economic popularization value.
In order to make the specification disclosure more sufficient, the machining process of the automobile sliding door guide rail is further explained. In step S3, the thermoplastic polyurethane and polyurea are mixed in a ratio of 1:1, which enables the thermoplastic polyurethane and polyurea to be mixed sufficiently, providing a certain basic condition for the production of the high-strength coating 3.
In step S4, the temperature of the drying chamber is 190 ℃ and the baking time is 40min, and the guide rail body 1 is dried under the condition, so that the high-strength coating 3 can be stably fixed on the inner and outer surfaces of the guide rail body 1, and the phenomenon of peeling is not easy to occur, thereby improving the product quality.
The implementation principle of the embodiment is as follows: this car sliding door guide rail designs into tongue-and-groove slide rail structure, when the sliding door slides and inlays the tongue-and-groove of establishing on guide rail body 1 in, compares in traditional groove structure's guide rail, the difficult phenomenon that takes place the sliding door and drop for sliding door can be stable slide in the guide rail, has improved car sliding door's life. And the reinforcing plate 2 obviously improves the mechanical property of the guide rail body 1, so that the guide rail body 1 is not easy to deform after being subjected to external force, and the structural strength of the guide rail body 1 is improved.
The steel strip plate is formed by prebending, the rigidity and the stability are good, and the section size is easy to control, so that the product quality is ensured. High-strength paint 3 is sprayed on the guide rail body 1, so that the structural strength of the guide rail body 1 is further improved, the corrosion resistance of the guide rail body is improved, and the attractiveness is enhanced.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a car sliding door guide rail which characterized in that: including guide rail body (1), guide rail body (1) is buckled by a steel band panel and is formed, guide rail body (1) forms a tongue-and-groove slide rail structure on following its length direction, the both sides of guide rail body (1) integrated into one piece fixedly connected with reinforcing plate (2) respectively, the inside and outside surface coating of guide rail body (1) has high strength coating (3).
2. The vehicle sliding door guide rail according to claim 1, wherein: the guide rail is characterized in that limiting plates (4) are fixedly connected to two sides of the interior of the guide rail body (1) respectively, and waist-shaped grooves (41) are formed in the limiting plates (4) along the length direction of the limiting plates.
3. The vehicle sliding door guide rail according to claim 1, wherein: the guide rail body (1) is provided with a plurality of mounting holes for fixing bolts (5).
4. The vehicle sliding door guide rail according to claim 1, wherein: the high-strength coating (3) is prepared by mixing and heating thermoplastic polyurethane and polyurea according to a certain proportion.
5. The machining process of the automobile sliding door guide rail is characterized in that: the method comprises the following steps:
s1, performing, namely forming limiting holes in limiting plates (4) made of metal materials by using a punching machine, symmetrically welding the two limiting plates (4) on the same side of a steel strip plate by using the central line of the length direction of the steel strip plate, and bending the steel strip plate into a tongue-and-groove sliding rail structure with a reinforcing plate (2) by using a pre-bending machine;
s2, sawing and forming, namely cutting off the redundant part of the reinforcing plate (2) by using a sawing machine, and then trimming the shape of the guide rail body (1) by using a special die;
s3, spraying, namely mixing the thermoplastic polyurethane and the polyurea raw materials according to a certain proportion, heating to 120-140 ℃, mixing the heating pipe to a polyurethane spraying machine at high pressure, and spraying the inner surface and the outer surface of the guide rail body (1) by the polyurethane spraying machine;
s4, drying, namely conveying the guide rail body (1) into a drying chamber for drying, and curing the high-strength coating (3);
and S5, mounting through holes, forming a plurality of mounting holes in the bottom of the mortise of the guide rail body (1), and mounting bolts (5) in the mounting holes to obtain the sliding door guide rail.
6. The automobile sliding door guide rail machining process according to claim 5, wherein the machining process comprises the following steps:
in step S3, the thermoplastic polyurethane is mixed with the polyurea in a ratio of 1: 1.
7. The automobile sliding door guide rail machining process according to claim 5, wherein the machining process comprises the following steps:
in step S4, the temperature of the drying chamber is 190 ℃ and the baking time is 40 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011605070.1A CN112744059B (en) | 2020-12-30 | 2020-12-30 | Automobile sliding door guide rail and processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605070.1A CN112744059B (en) | 2020-12-30 | 2020-12-30 | Automobile sliding door guide rail and processing technology |
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| CN112744059A true CN112744059A (en) | 2021-05-04 |
| CN112744059B CN112744059B (en) | 2023-08-04 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0736404A2 (en) * | 1995-04-05 | 1996-10-09 | Croce, Mattia Celso, dba SPRING di CROCE MATTIA CELSO & C. S.n.c. | Profiled guide member for truck covers |
| CN201412002Y (en) * | 2009-06-03 | 2010-02-24 | 浙江兴宇汽车零部件有限公司 | Vehicle middle door slide rail |
| CN201428321Y (en) * | 2009-07-01 | 2010-03-24 | 重庆小康汽车产业（集团）有限公司 | Mini car lateral sliding door guide rail |
| US20110131767A1 (en) * | 2009-12-07 | 2011-06-09 | Dura Automotive Body & Glass Systems Gmbh | Sliding door for a vehicle |
| JP2013095241A (en) * | 2011-10-31 | 2013-05-20 | Daihatsu Motor Co Ltd | Slide door device for vehicle |
| CN204175110U (en) * | 2014-08-15 | 2015-02-25 | 洪铁成 | A kind of car coat type slide rail doorframe |
| CN106522714A (en) * | 2016-08-29 | 2017-03-22 | 浙江兴宇汽车零部件有限公司 | Automobile sliding door guide rail and machining process |
| CN206633778U (en) * | 2017-03-17 | 2017-11-14 | 敏实汽车技术研发有限公司 | Bar section structure on a kind of automobile door frame |
| CN207315089U (en) * | 2017-09-14 | 2018-05-04 | 南京浦镇科技实业有限公司 | A kind of downslide slot structure of |
| CN211573188U (en) * | 2020-02-21 | 2020-09-25 | 江晓英 | Sliding door structure for wardrobe |
-
2020
- 2020-12-30 CN CN202011605070.1A patent/CN112744059B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0736404A2 (en) * | 1995-04-05 | 1996-10-09 | Croce, Mattia Celso, dba SPRING di CROCE MATTIA CELSO & C. S.n.c. | Profiled guide member for truck covers |
| CN201412002Y (en) * | 2009-06-03 | 2010-02-24 | 浙江兴宇汽车零部件有限公司 | Vehicle middle door slide rail |
| CN201428321Y (en) * | 2009-07-01 | 2010-03-24 | 重庆小康汽车产业（集团）有限公司 | Mini car lateral sliding door guide rail |
| US20110131767A1 (en) * | 2009-12-07 | 2011-06-09 | Dura Automotive Body & Glass Systems Gmbh | Sliding door for a vehicle |
| JP2013095241A (en) * | 2011-10-31 | 2013-05-20 | Daihatsu Motor Co Ltd | Slide door device for vehicle |
| CN204175110U (en) * | 2014-08-15 | 2015-02-25 | 洪铁成 | A kind of car coat type slide rail doorframe |
| CN106522714A (en) * | 2016-08-29 | 2017-03-22 | 浙江兴宇汽车零部件有限公司 | Automobile sliding door guide rail and machining process |
| CN206633778U (en) * | 2017-03-17 | 2017-11-14 | 敏实汽车技术研发有限公司 | Bar section structure on a kind of automobile door frame |
| CN207315089U (en) * | 2017-09-14 | 2018-05-04 | 南京浦镇科技实业有限公司 | A kind of downslide slot structure of |
| CN211573188U (en) * | 2020-02-21 | 2020-09-25 | 江晓英 | Sliding door structure for wardrobe |
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| CN112744059B (en) | 2023-08-04 |
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