CN220117963U - A gas vaulting pole fastening structure and car for plastics back of body door - Google Patents
A gas vaulting pole fastening structure and car for plastics back of body door Download PDFInfo
- Publication number
- CN220117963U CN220117963U CN202321381515.1U CN202321381515U CN220117963U CN 220117963 U CN220117963 U CN 220117963U CN 202321381515 U CN202321381515 U CN 202321381515U CN 220117963 U CN220117963 U CN 220117963U
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- Prior art keywords
- back door
- plastic back
- plate
- threaded hole
- reinforcing plate
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- 229920003023 plastic Polymers 0.000 title claims abstract description 88
- 239000004033 plastic Substances 0.000 title claims abstract description 88
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 10
- 239000002184 metal Substances 0.000 description 11
- 210000003205 muscle Anatomy 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model provides an air stay bar fastening structure for a plastic back door and an automobile, which comprise a plastic back door inner plate, wherein the inner surface of the plastic back door inner plate is provided with a reinforcing plate, the plastic back door inner plate is respectively provided with a first through hole and a second through hole for a first ball stud and an inner hexagonal flat head stud to pass through, and the corresponding positions are respectively provided with a first threaded hole and a second threaded hole for the first ball stud and the inner hexagonal flat head stud to pass through; a steel sleeve is nested in the first through hole on the plastic back door inner plate in an interference fit mode, the height of the steel sleeve is larger than the thickness of the plastic back door inner plate, and a through opening is formed in the side wall of the steel sleeve; the first ball stud penetrates through the steel sleeve and is screwed with a first threaded hole in the reinforcing plate, and the reinforcing plate is fixed on the inner surface of the plastic back door inner plate. The utility model avoids the problem that the installation and fastening precision of the air stay rod is affected by the deformation of the inner plate of the plastic back door caused by temperature change.
Description
Technical Field
The utility model relates to the technical field of automobile back door parts, in particular to an air stay bar fastening structure for a plastic back door and an automobile.
Background
At present, in the automotive filed, the main structure of plastic back door gas stay pole ball stud fixed point has, and the metal reinforcing plate is pre-buried in plastic back door inner panel or the metal reinforcing plate is realized being connected with plastic back door inner panel through gluing and the form of riveting, and plastic material back door precision is influenced greatly by high low temperature, according to the motorcycle type statistics in the past, high low temperature operating mode, leads to back door profile dimension variable quantity about + -0.8 mm, and the face is poor to be out of shape quantity + -0.15 mm, and above both modes all have the location inaccuracy, and installation error is great and connecting bolt moment decay leads to the not hard up problem of bolt.
The mode that adopts the metal reinforcing plate pre-buried in plastics back door inner panel to the reinforcing of gas stay pole mounting point department, need be fixed the metal reinforcing plate in injection mold the inside before plastics back door inner panel moulds plastics, after the completion of moulding plastics, realize that the metal reinforcing plate imbeds in the gas stay pole mounting point department of plastics back door inner panel and fix metal reinforcing plate and plastics back door inner panel again through the riveting nut mode, this kind of mode, because plastics back door receives outside temperature's influence deformation, it is not hard up to lead to the riveting nut to appear, and then it is not high to lead to the positioning accuracy of metal reinforcing plate and plastics back door inner panel, influence the installation accuracy of gas stay pole, simultaneously, the auxiliary fixtures that adopts the pre-buried mode of metal reinforcing plate needs are many, the cost is high, the mould is complicated, for projection welding nut and screw plate riveting nut intensity is lower, and high strength operating mode has not been satisfied, still there is the problem of connecting bolt moment decay.
However, in another mode, the metal reinforcing plate is glued, then fixed with the inner plate of the plastic back door through a pull rivet or a screwed connection mode, and because the plastic inner door is in direct contact with the pull rivet or the bolt, when the plastic back door is deformed due to the change of the external temperature, the pull rivet nut or the bolt nut is loosened, the positioning precision of the metal reinforcing plate and the inner plate of the plastic back door is low, the problem of the installation precision of the air stay rod is affected, the problems of more auxiliary tools and high cost exist at the same time, the strength of the pull rivet nut is low, the high-strength working condition cannot be met, and the problem of bolt moment attenuation connection failure is easy to occur due to the influence of the performance and the structure of the material.
Disclosure of Invention
The utility model aims to provide an air stay bar fastening structure for a plastic back door, which is characterized in that a ball stud, a steel sleeve and a reinforcing plate are integrally fixed, so that deformation of a plastic back door inner plate caused by temperature change is avoided, and the installation positioning precision between the plastic back door inner plate and a metal reinforcing plate is influenced, thereby influencing the installation fastening precision of the air stay bar and the moment attenuation problem of a connecting bolt of a mounting point structure, and meanwhile, through the design of an opening on the steel sleeve, the circumferential extrusion force of the plastic back door inner plate is overcome, and the specific scheme is as follows:
the air stay bar fastening structure for a plastic back door of the present utility model comprises:
the plastic back door inner plate is provided with a reinforcing plate on the inner surface, a first through hole and a second through hole for the first ball stud and the inner hexagonal flat head stud to pass through are respectively arranged on the plastic back door inner plate, and a first threaded hole and a second threaded hole for the first ball stud and the inner hexagonal flat head stud to pass through are respectively arranged on the reinforcing plate at corresponding positions; a steel sleeve is nested in the first through hole on the plastic back door inner plate in an interference fit mode, the height of the steel sleeve is larger than the thickness of the plastic back door inner plate, and a notch is formed in the side wall of the steel sleeve; the first ball stud penetrates through the steel sleeve and is screwed with a first threaded hole in the reinforcing plate, the reinforcing plate is fixed on the inner surface of the plastic back door inner plate, and the ball head part of the first ball stud is rotationally connected to one end of the air supporting rod.
Further, the internal surface of plastics back of body door inner panel is provided with limit structure, limit structure is suddenly located the internal surface of plastics back of body door inner panel, and its inside is provided with the reinforcing plate, limit structure with the reinforcing plate is clearance fit, and the interval is: 0.1-0.25mm.
Further, limit structure comprises left spacing muscle, right spacing muscle and lower muscle, left side spacing muscle right spacing muscle with lower muscle all extends along the internal surface of plastics back of the body door inner panel outwards and sets up, and left side spacing muscle reaches right spacing muscle is located respectively the left side and the right side of reinforcing plate, lower muscle is located the downside of reinforcing plate.
Further, the reinforcing plate is a rectangular plate, and the size of the reinforcing plate is long: 55-65mm, width: 20-30mm, high: 5-8mm; the first threaded hole is an M8 threaded hole, the second threaded hole is an M6 threaded hole, and the distance between the center of the first threaded hole and the center of the second threaded hole is 22-28mm.
Further, the outer diameter of the steel sleeve is 10-13mm, the inner diameter is 9-12mm, the height is 5-6mm, and the width of the gap formed in the axial direction of the side wall of the steel sleeve is 0.5-1.0mm.
Further, the other end of the air stay rod is movably connected with a mounting bracket through a second ball stud, the second ball stud is fixed on the outer surface of the mounting bracket, and the mounting bracket is adhered and fixed on the inner surface of the rear windshield through an adhesive layer.
Further, the inner surface of the mounting bracket is at least provided with a plurality of convex parts, and the convex parts are uniformly arranged on the inner surface of the mounting bracket.
Further, the peripheral side of the mounting bracket is outwardly extended with a flange.
The automobile is characterized by comprising a back box door, wherein the back box door is provided with the air stay bar fastening structure for the plastic back door.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the installation precision of the air brace rod is improved by adopting the combination and cooperation of the ball stud, the steel sleeve, the inner hexagonal flat head stud and the reinforcing plate, the influence of deformation of the inner plate of the plastic back door on the installation precision of the air brace rod is avoided, the problem of bolt moment attenuation can be effectively improved, the irreversible damage to the inner plate body of the plastic back door when the bolts are fastened can be effectively improved by using the steel sleeve structural design, and the production and manufacturing cost is reduced.
Drawings
FIG. 1 is a schematic view of the exterior structure of an air stay fastening structure for a plastic back door;
FIG. 2 is an enlarged view at A of FIG. 2;
FIG. 3 is an enlarged view at C of FIG. 1;
FIG. 4 is a section B-B of FIG. 2;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is a schematic structural view of a mounting bracket;
FIG. 7 is a cross-sectional view of the mounting bracket and rear windshield;
FIG. 8 is a schematic view of the interior surface appearance of FIG. 2;
in the figure:
1. a plastic back door inner panel;
2. a reinforcing plate;
21. a first threaded hole;
22. a second threaded hole;
3. a limit structure;
31. a left limit rib;
32. right limit ribs;
33. b, lower ribs;
4. a first ball stud;
5. a hexagon socket head bolt;
6. a steel sleeve;
7. a notch;
8. a gas strut;
9. a second ball stud;
10. a mounting bracket;
11. a convex portion;
12. a rear windshield;
13. and (5) a glue layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to fig. 1 to 8, and it should be apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. 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.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present utility model, these descriptions should not be limited to these terms. These terms are only used to distinguish one from another. For example, a first may also be referred to as a second, and similarly, a second may also be referred to as a first, without departing from the scope of embodiments of the utility model.
An air stay bar fastening structure for a plastic back door, comprising: the plastic back door inner plate 1, wherein the inner surface of the plastic back door inner plate 1 is provided with a reinforcing plate 2 and a limiting structure 3, the limiting structure 3 is arranged on the inner surface of the plastic back door inner plate 1 in a protruding mode, and the reinforcing plate 2 is arranged in the limiting structure 3; the plastic back door inner plate 1 is respectively provided with a first through hole and a second through hole for the first ball stud 4 and the inner hexagonal flat head bolt 5 to pass through, and the corresponding positions are respectively provided with a first threaded hole 21 and a second threaded hole 22 for the first ball stud 4 and the inner hexagonal flat head bolt 5 to pass through on the reinforcing plate 2; a steel sleeve 6 is nested in the first through hole on the plastic back door inner plate 1 in an interference fit mode, the height of the steel sleeve 6 is larger than the thickness of the plastic back door inner plate 1, and a notch 7 is formed in the side wall of the steel sleeve 6; the first ball stud 4 passes through the steel sleeve 6 and is screwed with the first threaded hole 21, the plastic back door inner plate 1 is clamped between the first ball stud 4 and the reinforcing plate 2, the reinforcing plate 2 is fixed on the inner surface of the plastic back door inner plate 1, and the ball head part of the first ball stud 4 is rotationally connected to one end of the air supporting rod 8.
According to the utility model, the first ball stud 4 passes through the steel sleeve 6 and is fixed with the reinforcing plate 2, so that the installation precision of the air stay rod 8 is improved, the problem of bolt moment attenuation is effectively solved, the plastic back door inner plate 1 body is prevented from being irreversibly damaged by the design of the notch 7 of the steel sleeve 6, and meanwhile, the production and manufacturing cost is reduced.
It should be further explained that, since the head of the inner hexagonal flat head bolt 5 is tapered and is mounted on the plastic back door inner plate 1, the tapered inclined surface of the head of the inner hexagonal flat head bolt 5 is in line contact with the plastic back door inner plate 1, so that the extrusion force generated by deformation of the plastic back door inner plate 1 is small relative to the inner hexagonal flat head bolt 5, and the loosening of the inner hexagonal flat head bolt 5 is avoided, and meanwhile, the problem that the whole appearance and loosening are affected by adopting the existing cap bolt to protrude the outer surface of the plastic back door inner plate 1 is avoided.
Meanwhile, the design of the steel sleeve 6 is adopted, and the height of the steel sleeve 6 is larger than the thickness of the plastic back door inner plate 1, so that a gap is reserved between the steel sleeve and the plastic back door inner plate, thereby avoiding the fastening influence of the deformation of the plastic back door inner plate 1 on the first ball stud 4, avoiding the circumferential deformation extrusion of the plastic back door inner plate 1 on the first ball stud 4 through the design of the notch 7 formed by the steel sleeve 6, further ensuring the positioning precision of the reinforcing plate 2 and the plastic back door inner plate 1, and further ensuring the mounting precision of the air brace 8.
It should be noted that, the spacing structure 3 is clearance fit with the reinforcing plate 2, and the interval is 0.1-0.25mm, preferably 0.2mm, wherein the spacing structure 3 is composed of a left spacing rib 31, a right spacing rib 32 and a lower rib 33, the left spacing rib 31, the right spacing rib 32 and the lower rib 33 are all arranged along the outer extension of the inner surface of the plastic back door inner plate 1, the left spacing rib 31 and the right spacing rib 32 are respectively located on the left side and the right side of the reinforcing plate 2, the lower rib 33 is located on the lower side of the reinforcing plate 2, the reinforcing plate 2 is a rectangular plate, and the size is long: 55-65mm, width: 20-30mm thick: 5-8mm, preferably 60mm in length and width: 26mm, thickness: 5mm, the benefit of this kind of design is, guarantees the convenience of effective location and the installation of reinforcing plate 2, prevents reinforcing plate 2 because drunkenness and rotation lead to location and the inaccurate problem of assembly in the assembly process.
It is further noted that the first threaded hole 21 is an M8 threaded hole, the second threaded hole 22 is an M6 threaded hole, a distance between a center of the first threaded hole 21 and a center of the second threaded hole 22 is 22-28mm, and preferably, a distance between a center of the first threaded hole 21 and a center of the second threaded hole 22 is 25mm.
The external diameter of the steel sleeve 6 is 10-13mm, the internal diameter is 9-12mm, the height is 5-6mm, preferably, the external diameter of the steel sleeve 6 is 12.5mm, the internal diameter is 10.5mm, the height is 5mm, the width of a gap 7 formed in the axial direction on the side wall of the steel sleeve 6 is 0.5-1.5mm, preferably, the width of the gap 7 is 0.7mm, the edges of the upper end and the lower end of the steel sleeve 6 are processed into 45-degree chamfers, the design has the advantages that the periphery of the steel sleeve 6 and the plastic back door inner plate 1 are ensured to be gapless in the assembly process, and the circumferential extrusion of the plastic back door inner plate 1 to the steel sleeve 6 is avoided through the design of the gap 7.
The other end of the air stay 8 is movably connected with a mounting bracket 10 through a second ball stud 9, the second ball stud 9 is fixed on the outer surface of the mounting bracket 10, and the mounting bracket 10 is adhered and fixed on the inner surface of the rear windshield 12 through an adhesive layer 13.
In this embodiment, the mounting bracket 10 has the following dimensions: 160mm, width: 40mm, thickness: 3.5mm, the thickness of the glue layer 13 is: 0.5mm, further, in order to ensure that rear windshield 12 and installing support 10 are fixed a position, effective bonding and glue thickness are even installing support 10 is provided with a plurality of protruding portions 11 at least with the internal surface that rear windshield 12 laminated, and protruding portions 11 even arrangement is in on the internal surface of installing support 10, in this embodiment install three protruding portions 11 on the internal surface that installing support 10 and rear windshield 12 laminated.
Further, the peripheral side of the mounting bracket 10 extends outwards to form a flange, and since the mounting bracket 10 adopts a flange structure at a non-adhesive part, the adhesive quality of the adhesive layer 13 is checked through a gap formed between the flange and the rear windshield, thereby facilitating adhesive scraping and preventing the inner surface of the rear windshield from being scratched in the bonding process.
According to the utility model, the mounting precision of the air brace 8 is improved by adopting the combined cooperation of the first ball stud 4, the steel sleeve 6, the inner hexagonal flat head stud 5, the second ball stud 9 and the reinforcing plate 2, the influence of deformation of the plastic back door inner plate 1 on the mounting precision of the air brace 8 is avoided, the problem of bolt moment attenuation can be effectively improved, and meanwhile, the irreversible damage to the plastic back door inner plate 1 body during fastening of the bolts can be effectively improved by using the structural design of the steel sleeve 6, and the production and manufacturing cost is reduced.
The utility model also provides an automobile using the embodiment, which comprises a back door, wherein the back door is provided with the air stay bar fastening structure for the plastic back door.
Exemplary embodiments according to the present utility model will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
Claims (9)
1. An air stay bar fastening structure for a plastic back door, comprising: a plastic back door inner plate (1), wherein a reinforcing plate (2) is arranged on the inner surface of the plastic back door inner plate (1); the plastic back door inner plate (1) is respectively provided with a first through hole and a second through hole for the first ball stud (4) and the inner hexagonal flat head bolt (5) to pass through, and the corresponding positions are respectively provided with a first threaded hole (21) and a second threaded hole (22) for the first ball stud (4) and the inner hexagonal flat head bolt (5) to pass through on the reinforcing plate (2); a steel sleeve (6) is nested in the first through hole on the plastic back door inner plate (1) in an interference fit mode, the height of the steel sleeve (6) is larger than the thickness of the plastic back door inner plate (1), and a notch (7) is formed in the side wall of the steel sleeve (6); the first ball stud (4) passes through the steel sleeve (6) and is screwed with a first threaded hole (21) on the reinforcing plate (2), the plastic back door inner plate (1) is clamped between the first ball stud (4) and the reinforcing plate (2), and the ball head part of the first ball stud (4) is rotationally connected to one end of the air supporting rod (8).
2. The gas stay fastening structure for a plastic back door according to claim 1, wherein the inner surface of the plastic back door inner plate (1) is provided with a limit structure (3), the limit structure (3) is protruded on the inner surface of the plastic back door inner plate (1), the reinforcing plate (2) is arranged in the limit structure, the limit structure (3) and the reinforcing plate (2) are in clearance fit, and the interval is: 0.1-0.25mm.
3. The air stay bar fastening structure for a plastic back door according to claim 2, wherein the limit structure (3) is composed of a left limit rib (31), a right limit rib (32) and a lower rib (33), the left limit rib (31), the right limit rib (32) and the lower rib (33) are all arranged along the outer extension of the inner surface of the plastic back door inner plate (1), the left limit rib (31) and the right limit rib (32) are respectively positioned on the left side and the right side of the reinforcing plate (2), and the lower rib (33) is positioned on the lower side of the reinforcing plate (2).
4. The gas stay fastening structure for a plastic back door according to claim 1, wherein the reinforcing plate (2) is a rectangular plate having a long dimension: 55-65mm, width: 20-30mm, high: 5-8mm; the first threaded hole (21) is an M8 threaded hole, the second threaded hole (22) is an M6 threaded hole, and the distance between the center of the first threaded hole (21) and the center of the second threaded hole (22) is 22-28mm.
5. The gas stay fastening structure for a plastic back door according to claim 1, wherein the outer diameter of the steel sleeve (6) is 10-13mm, the inner diameter is 9-12mm, the height is 5-6mm, and the width of the gap (7) formed in the side wall of the steel sleeve (6) in the axial direction is 0.5-1.0mm.
6. The air stay fastening structure for a plastic back door according to claim 1, wherein the other end of the air stay (8) is movably connected with a mounting bracket (10) through a second ball stud (9), the second ball stud (9) is fixed on the outer surface of the mounting bracket (10), and the mounting bracket (10) is adhered and fixed on the inner surface of a rear windshield (12) through an adhesive layer (13).
7. The gas stay fastening structure for a plastic back door according to claim 6, wherein the inner surface of the mounting bracket (10) is provided with at least a plurality of protrusions (11), and the protrusions (11) are uniformly arranged on the inner surface of the mounting bracket (10).
8. The gas stay fastening structure for a plastic back door according to claim 7, wherein the mounting bracket (10) has a hem extending outwardly from a circumferential side thereof.
9. An automobile comprising a back door on which an air stay fastening structure for a plastic back door as set forth in any one of claims 1 to 8 is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381515.1U CN220117963U (en) | 2023-06-01 | 2023-06-01 | A gas vaulting pole fastening structure and car for plastics back of body door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381515.1U CN220117963U (en) | 2023-06-01 | 2023-06-01 | A gas vaulting pole fastening structure and car for plastics back of body door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220117963U true CN220117963U (en) | 2023-12-01 |
Family
ID=88896664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321381515.1U Active CN220117963U (en) | 2023-06-01 | 2023-06-01 | A gas vaulting pole fastening structure and car for plastics back of body door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220117963U (en) |
-
2023
- 2023-06-01 CN CN202321381515.1U patent/CN220117963U/en active Active
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