CN113696832B - Hot-melting column structure of automobile decorative plate - Google Patents
Hot-melting column structure of automobile decorative plate Download PDFInfo
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- CN113696832B CN113696832B CN202110892306.2A CN202110892306A CN113696832B CN 113696832 B CN113696832 B CN 113696832B CN 202110892306 A CN202110892306 A CN 202110892306A CN 113696832 B CN113696832 B CN 113696832B
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- hot
- hollow cylinder
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- sleeve
- ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0206—Arrangements of fasteners and clips specially adapted for attaching inner vehicle liners or mouldings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a hot-melting column structure of an automobile decorative plate, which comprises the automobile decorative plate and a connecting plate body, wherein a hollow column body is arranged on the automobile decorative plate, a connecting hole matched with the hollow column body is arranged on the connecting plate body, a circular boss is arranged at one end of the connecting hole, two annular grooves are arranged on the inner wall of the hollow column body, the two annular grooves are arranged along the axial direction of the hollow column body, and heat expansion rings are arranged in the two annular grooves. According to the invention, the end part of the hot-melt column can form a mushroom head structure with larger diameter after being heated and melted, so that the hollow column is not easy to pull out from the connecting hole, and the connecting strength between the automobile decorative plate and the connecting plate body is effectively improved.
Description
Technical Field
The invention relates to a hot-melting column structure, in particular to a hot-melting column structure of an automobile decorative plate.
Background
The automobile decorative plate is generally made of plastic, and a hot-melting column structure is generally arranged on the automobile decorative plate and has the function of being matched with the connecting holes on the corresponding connecting plate body to be fixedly connected with the connecting plate body. The hot-melt column is a hollow column structure arranged on the automobile decorative plate, when the automobile decorative plate is connected with the connecting plate body, the installation position is found firstly, the hollow column on the automobile decorative plate is inserted into a connecting hole (the diameter of the connecting hole is slightly larger than that of the hot-melt column) on the connecting plate body, one end of the hollow column penetrates through the connecting hole and extends out of the connecting hole by a certain distance, then the end of the hollow column is heated and melted through a corresponding welding device, the end of the hollow column is deformed outwards in the radial direction, so that a mushroom head structure with the diameter larger than that of the connecting hole is formed at the end of the hollow column, and the mushroom head structure plays a limiting role, so that the inner decorative plate is fixed on the automobile body.
When the existing automobile plaque plate is installed, the deformation of the end part of the hollow column body towards the radial outer side is small in the process of being heated and melted, the end part of the hollow column body cannot form a mushroom head structure with a large enough diameter, and when the inner plaque plate is subjected to large drawing force, the hollow column body is easily pulled out of the connecting hole, so that the automobile plaque plate is easily separated from the connecting plate body.
Disclosure of Invention
The invention aims to solve the problems that when an existing automobile decorative plate is installed, the deformation of the end part of a hollow cylinder towards the radial outer side is small in the process of heating and melting, the end part of the hollow cylinder cannot form a mushroom head structure with a large enough diameter, and when the automobile decorative plate is subjected to a large drawing force, the hollow cylinder is easily pulled out of a connecting hole, so that the automobile decorative plate and a connecting plate body are separated, and the automobile decorative plate hot-melt column structure can effectively solve the problems.
The invention aims at realizing the following technical scheme: the utility model provides a car plaque hot melt post structure, includes car plaque and connecting plate body, is provided with hollow cylinder on the car plaque, is provided with on the connecting plate body with hollow cylinder matched with connecting hole, the one end of connecting hole is provided with the ring boss, is provided with two ring channels on the inner wall of hollow cylinder, and two ring channels are arranged along the axial of hollow cylinder, all are provided with the heat expansion ring in two ring channels.
In the invention, two heat expansion rings are arranged on the inner side of the hot melting column, the two heat expansion rings are arranged up and down, the upper heat expansion ring is closer to the end face of the hollow column, and the lower heat expansion ring is farther from the end face of the hollow column. The diameter of the heat expansion ring expands when heated. When the end part of the hollow cylinder is heated and melted, the part of the hollow cylinder where the upper heat expansion ring is located is heated and melted, at the moment, the upper heat expansion ring is heated and expanded in diameter, and after the diameter of the heat expansion ring is expanded, the end part of the hollow cylinder is promoted to expand towards the radial outer side, so that a mushroom head structure with a larger diameter is formed at the end part of the hollow cylinder, the cylinder is not easy to be pulled out from the connecting hole, and the connecting strength between the automobile decorative plate and the connecting plate body is effectively improved. Meanwhile, the hollow cylinder part at the position of the lower heat expansion ring is positioned at the inner side of the circular ring boss, the hollow cylinder part at the position of the lower heat expansion ring is also in a molten or semi-molten state after being heated, the diameter of the lower heat expansion ring is expanded after being heated, and the hollow cylinder at the position can be promoted to expand outwards until being expanded with the inner wall of the circular ring boss after the diameter of the heat expansion ring is expanded, so that the radial gap between the hollow cylinder and the circular ring boss is eliminated, and the radial movement of the hollow cylinder in the circular ring boss is avoided. According to the invention, the end part of the hot-melt column can form a mushroom head structure with larger diameter after being heated and melted, so that the hollow column is not easy to pull out from the connecting hole, and the connecting strength between the automobile decorative plate and the connecting plate body is effectively improved.
Preferably, the thermal expansion ring comprises a plurality of arc-shaped elastic sheets, the end parts of two adjacent arc-shaped elastic sheets are connected through a thermal bending part, the thermal bending part is U-shaped, two ends of the thermal bending part are respectively connected with the end parts of the two arc-shaped elastic sheets, the thermal bending part comprises an inner side metal layer and an outer side metal layer, and the thermal expansion coefficient of the inner side metal layer is larger than that of the outer side metal layer; a limiting mechanism is further arranged between the end parts of the two adjacent arc-shaped elastic sheets, the limiting mechanism comprises a sleeve and a sliding rod matched with the sleeve, the sleeve is fixed at the end part of one arc-shaped elastic sheet, the sliding rod is fixed at the end part of the other arc-shaped elastic sheet, and the sliding rod is connected in the sleeve in a sliding manner; the side surface of the sliding rod is provided with a guide groove, a telescopic block is connected in the guide groove in a sliding way, and a spring is arranged between the telescopic block and the bottom of the guide groove; the inner wall of the sleeve is provided with a clamping groove matched with the telescopic block. When the welding device heats the end part of the hollow cylinder, the heated temperature of the heat expansion ring rises, and as the heat expansion coefficient of the inner side metal layer of the heat bending part is larger than that of the outer side metal layer, the two ends of the heat bending part can be outwards opened after the heat bending part is heated, so that the whole diameter of the heat expansion ring is increased; the both ends of hot bending part are at the in-process of outwards opening, the slide bar can stretch out certain distance from the sleeve, when the both ends of hot bending part stretch out certain degree, the telescopic block on the slide bar just moves to the position that the draw-in groove was located, the telescopic block is blocked into the draw-in groove this moment under the effect of spring for locking between slide bar and the sleeve, thereby make the diameter of whole hot expansion ring fixed, the diameter of hot expansion ring can't shrink, avoided hot melt post tip to make the hot expansion ring diameter shrink because of the temperature decline and influence mushroom head structure's formation like this in the cooling process.
Preferably, the arc-shaped elastic sheet is made of spring steel.
Preferably, the heat expandable ring comprises four arcuate elastic sheets.
Preferably, the distance between one annular groove and the end face of the hollow cylinder is 8-10 mm, and the distance between the other annular groove and the end face of the hollow cylinder is 15-20 mm.
Preferably, the hollow column body and the automobile decorative plate are integrally formed.
Preferably, the wall thickness of the hollow cylinder is 4-6 mm.
The beneficial effects of the invention are as follows: according to the invention, the end part of the hot-melt column can form a mushroom head structure with larger diameter after being heated and melted, so that the hollow column is not easy to pull out from the connecting hole, and the connecting strength between the automobile decorative plate and the connecting plate body is effectively improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a cross-sectional view of a heat expandable ring.
Fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1. automobile decorative plate, 2, connecting plate body, 3, ring boss, 4, hollow cylinder, 5, hot expansion ring, 6, arc elastic sheet, 8, inboard metal level, 9, outside metal level, 10, sleeve, 11, slide bar, 12, guide way, 13, expansion block, 14, spring, 15, draw-in groove.
Detailed Description
The invention is further described below by means of specific embodiments in connection with the accompanying drawings.
Example 1:
as shown in fig. 1 to 3, a hot-melt pillar structure of an automobile trim panel includes an automobile trim panel 1 and a web body 2. The automobile trim 1 is made of plastic. The automobile decorative board 1 is provided with a hollow column 4. The hollow column 4 is integrally formed with the automobile trim 1. The wall thickness of the hollow column body 4 is 4-6 mm. The connecting plate body 2 is provided with a connecting hole matched with the hollow cylinder 4, and the aperture of the connecting hole is slightly larger than the outer diameter of the hollow cylinder 4. One end of the connecting hole is provided with a circular boss 3, and the inner diameter of the circular boss 3 is the same as the aperture of the connecting hole. The inner wall of the hollow cylinder 4 is provided with two annular grooves which are arranged along the axial direction of the hollow cylinder 4. The distance between one annular groove and the end face of the hollow cylinder is 8-10 mm, and the distance between the other annular groove and the end face of the hollow cylinder is 15-20 mm. One of the annular grooves is positioned on the inner side of the annular boss, and the other annular groove is higher than the annular boss. A heat expansion ring 5 is arranged in both annular grooves.
The heat expandable ring 5 comprises four arcuate elastic pieces 6. The arc-shaped elastic piece 6 is made of spring steel. The ends of two adjacent arc-shaped elastic sheets 6 are connected by a heat bending part. The heat bending part is U-shaped. The two ends of the heat bending part are respectively connected with the ends of the two arc-shaped elastic sheets 6. The thermally curved component comprises an inner metal layer 8 and an outer metal layer 9, the inner metal layer 8 having a coefficient of thermal expansion that is greater than the coefficient of thermal expansion of the outer metal layer 9. A limiting mechanism is also arranged between the end parts of the two adjacent arc-shaped elastic sheets 6. The limiting mechanism comprises a sleeve 10 and a sliding rod 11 matched with the sleeve 10, the sleeve 10 is fixed at the end part of one arc-shaped elastic piece 6, the sliding rod 11 is fixed at the end part of the other arc-shaped elastic piece 6, and the sliding rod 11 is slidably connected in the sleeve 10. The side of the slide bar 11 is provided with a guide groove 12, a telescopic block 13 is connected in the guide groove 12 in a sliding way, and a spring 14 is arranged between the telescopic block 13 and the bottom of the guide groove 12. The inner wall of the sleeve 10 is provided with a clamping groove 15 matched with the telescopic block 13.
In the invention, two heat expansion rings are arranged on the inner side of the hot melting column, the two heat expansion rings are arranged up and down, the upper heat expansion ring is closer to the end face of the hollow column, and the lower heat expansion ring is farther from the end face of the hollow column. The diameter of the heat expansion ring expands when heated. When the end part of the hollow cylinder is heated and melted, the part of the hollow cylinder where the upper heat expansion ring is located is heated and melted, at the moment, the upper heat expansion ring is heated and expanded in diameter, and after the diameter of the heat expansion ring is expanded, the end part of the hollow cylinder is promoted to expand towards the radial outer side, so that a mushroom head structure with a larger diameter is formed at the end part of the hollow cylinder, the cylinder is not easy to be pulled out from the connecting hole, and the connecting strength between the automobile decorative plate and the connecting plate body is effectively improved. Meanwhile, the hollow cylinder part at the position of the lower heat expansion ring is positioned at the inner side of the circular ring boss, the hollow cylinder part at the position of the lower heat expansion ring is also in a molten or semi-molten state after being heated, the diameter of the lower heat expansion ring is expanded after being heated, and the hollow cylinder at the position can be promoted to expand outwards until being expanded with the inner wall of the circular ring boss after the diameter of the heat expansion ring is expanded, so that the radial gap between the hollow cylinder and the circular ring boss is eliminated, and the radial movement of the hollow cylinder in the circular ring boss is avoided.
The working principle of the thermal expansion ring is as follows: when the welding device heats the end part of the hollow cylinder, the heating temperature of the heat expansion ring rises, and as the thermal expansion coefficient of the inner side metal layer of the heat bending part is larger than that of the outer side metal layer, the two ends of the heat bending part can be outwards opened after the heat bending part is heated, so that the overall diameter of the heat expansion ring is increased; the both ends of hot bending part are at the in-process of outwards opening, the slide bar can stretch out certain distance from the sleeve, when the both ends of hot bending part stretch out certain degree, the telescopic block on the slide bar just moves to the position that the draw-in groove was located, the telescopic block is blocked into the draw-in groove this moment under the effect of spring for locking between slide bar and the sleeve, thereby make the diameter of whole hot expansion ring fixed, the diameter of hot expansion ring can't shrink, avoided hot melt post tip to make the hot expansion ring diameter shrink because of the temperature decline and influence mushroom head structure's formation like this in the cooling process.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present invention is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present invention can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a car plaque hot melt post structure, includes car plaque and connecting plate body, is provided with hollow cylinder on the car plaque, is provided with on the connecting plate body with hollow cylinder matched with connecting hole, its characterized in that: the one end of connecting hole is provided with the ring boss, is provided with two ring channels on the inner wall of hollow cylinder, and two ring channels are arranged along the axial of hollow cylinder, all are provided with the thermal expansion ring in two ring channels, the thermal expansion ring includes a plurality of arc elastic pieces, links to each other through the thermal bending part between the tip of two adjacent arc elastic pieces, and the thermal bending part is "U" shape, and the both ends of thermal bending part link to each other with the tip of two arc elastic pieces respectively, and the thermal bending part includes inboard metal level and outside metal level, and the coefficient of thermal expansion of inboard metal level is greater than the coefficient of thermal expansion of outside metal level.
2. The automotive trim panel hot-melt column structure according to claim 1, wherein a limiting mechanism is further arranged between the end parts of two adjacent arc-shaped elastic sheets, the limiting mechanism comprises a sleeve and a sliding rod matched with the sleeve, the sleeve is fixed at the end part of one arc-shaped elastic sheet, the sliding rod is fixed at the end part of the other arc-shaped elastic sheet, and the sliding rod is connected in the sleeve in a sliding manner; the side surface of the sliding rod is provided with a guide groove, a telescopic block is connected in the guide groove in a sliding way, and a spring is arranged between the telescopic block and the bottom of the guide groove; the inner wall of the sleeve is provided with a clamping groove matched with the telescopic block.
3. The automotive trim panel heat stake structure of claim 2, wherein the arcuate resilient sheet is made of spring steel.
4. The automotive trim panel heat stake structure of claim 2, wherein the heat expandable ring includes four arcuate elastomeric sheets.
5. The automotive trim panel hot-melt pillar structure according to claim 1 or 2 or 3 or 4, wherein a distance between one annular groove and an end face of the hollow pillar is 8 to 10 mm, and a distance between the other annular groove and an end face of the hollow pillar is 15 to 20 mm.
6. The automotive trim panel heat stake structure of claim 1, 2, 3 or 4, wherein the hollow stake body is integrally formed with the automotive trim panel.
7. The automotive trim panel hot-melt pillar structure according to claim 1 or 2 or 3 or 4, wherein the wall thickness of the hollow pillar is 4 to 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892306.2A CN113696832B (en) | 2021-08-04 | 2021-08-04 | Hot-melting column structure of automobile decorative plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892306.2A CN113696832B (en) | 2021-08-04 | 2021-08-04 | Hot-melting column structure of automobile decorative plate |
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| Publication Number | Publication Date |
|---|---|
| CN113696832A CN113696832A (en) | 2021-11-26 |
| CN113696832B true CN113696832B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110892306.2A Active CN113696832B (en) | 2021-08-04 | 2021-08-04 | Hot-melting column structure of automobile decorative plate |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2958875B1 (en) * | 2010-04-20 | 2017-07-07 | Snecma | DEVICE FOR MANUFACTURING A CASE OF COMPOSITE MATERIAL AND MANUFACTURING METHOD USING SUCH A DEVICE |
| CN202428669U (en) * | 2011-12-30 | 2012-09-12 | 成都贝根管道有限责任公司 | Internal support device for hot melt welding |
| WO2015178684A1 (en) * | 2014-05-20 | 2015-11-26 | 조한용 | Fin tube heat exchanger having shrink ring and manufacturing method therefor |
| CN105082486A (en) * | 2015-09-11 | 2015-11-25 | 东莞千度电热器材有限公司 | Bimetal self-locking heater |
| CN205310816U (en) * | 2015-12-15 | 2016-06-15 | 深圳市中联讯科技有限公司 | Hot melt fixing structure |
| CN106402559A (en) * | 2016-08-31 | 2017-02-15 | 浙江楠丰管道工业有限公司 | Electro-magnetic induction hot melting pipe connection method |
| CN206623472U (en) * | 2017-01-24 | 2017-11-10 | 浙江得威德环保科技有限公司 | Wear-resisting dedusting filtering bag |
| CN107906126B (en) * | 2017-07-31 | 2019-05-21 | 北京航空航天大学 | A kind of anti-swelling annulus with adjustable thermal expansion coefficient |
| CN211138180U (en) * | 2019-09-20 | 2020-07-31 | 潍坊歌尔电子有限公司 | Hot melting head |
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- 2021-08-04 CN CN202110892306.2A patent/CN113696832B/en active Active
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| CN113696832A (en) | 2021-11-26 |
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