Fastener, vehicle door assembly and vehicle

Abstract

The utility model provides a fastener, and belongs to the field of automobile engineering. The fastener comprises a head part, a rod part and a plastic coating layer, wherein the rod part is fixedly connected with the head part; the outer wall of the head portion is wrapped by the plastic coating layer, and the thickness range of the plastic coating layer is 0.05 mm-0. 1 mm. After the rod portion penetrates through the mounting hole, the plastic coating layer is arranged on the periphery of the head portion, P6A plastic is wrapped on the head portion in a thermoplastic processing mode, the periphery of the head portion is prevented from making direct contact with the paint face of the mounting hole, the paint face is prevented from being damaged, and the service life of the head portion is prolonged. And the connecting piece is used for isolating the bottom end of the head part, so that the contact between the head part and the paint surface of the mounting hole is further reduced, and the service life of the sheet metal part is prolonged.

Description

[0001] The present application belongs to the field of automotive engineering, and particularly relates to a fastener, a vehicle door assembly and a vehicle. BACKGROUND

[0002] Automotive fasteners have always been characterized by a wide variety of types, forms and specifications. The selection and use of fasteners involve structural analysis, connection design, failure and fatigue analysis, corrosion requirements and assembly methods, as well as related product quality control and testing. These factors largely determine the final quality and reliability of automotive products. The use of bolts for automotive exterior parts is particularly important.

[0003] In the prior art, since the bolts are mostly hard connections, when the fastener is fastened, the bolt head rubs against the vehicle body sheet metal, causing damage to the paint of the mounting hole. In turn, this causes rust on the vehicle body, and in severe cases, large-scale rusting of the vehicle body. Therefore, the present application is to solve the problem of wear and tear of the paint when the bolt is fastened on the sheet metal. Content of the utility model

[0004] The present application aims to at least solve one of the technical problems existing in the prior art or related art.

[0005] To this end, the present application provides a fastener, which is coated with P6A material on the outer wall of the bolt head to make the contact surface with the vehicle body smoother during use, thereby avoiding iron-to-iron contact, damage to the vehicle body sheet metal, and further rusting. This protects the paint surface of the vehicle body fastening hole from being scratched and damaged by the high-speed rotating bolt end, further protects the vehicle body sheet metal from rusting, and prevents subsequent rusting of the vehicle body.

[0006] The first aspect of the present application provides a fastener, comprising: a head portion;

[0007] a shank portion, the shank portion being fastened to the head portion;

[0008] a coating layer, the coating layer being wrapped on the outer wall of the head portion, and the thickness of the coating layer being in the range of 0.05mm-0.1mm.

[0009] In some embodiments that can be implemented, the shank portion comprises:

[0010] a shank body, the shank body being fastened to the bottom end of the head portion;

[0011] threads, the threads being uniformly provided on the outer wall of the shank body.

[0012] In some embodiments that can be implemented, the head portion comprises:

[0013] an end head, the end head being fastened to the shank portion, the outer wall of the end head being in a uniform wavy shape, and one end of the end head being conical and fitted to the shank portion;

[0014] The inner groove is arranged on the end face of the end away from the rod part.

[0015] In some embodiments, the inner groove comprises:

[0016] The upper groove is arranged on the side of the inner groove away from the rod part, and the upper groove is in the shape of a quincunx.

[0017] The lower groove is arranged on the side of the inner groove close to the rod part, and the lower groove is in the shape of a cone.

[0018] In some embodiments, the fastener further comprises a connecting piece movably sleeved on the outer wall of the rod part, and the connecting piece comprises:

[0019] The metal gasket is sleeved on the side of the rod part close to the head part.

[0020] The rubber protective sleeve is wrapped on the outer wall of the metal gasket, and the thickness of the rubber protective sleeve ranges from 0.1 mm to 0.2 mm.

[0021] In some embodiments, the fastener further comprises:

[0022] The rod body and the outer wall of the thread are both provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.05 mm to 0.1 mm.

[0023] In some embodiments, the fastener further comprises:

[0024] The outer wall of the end is provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.1 mm to 0.15 mm.

[0025] In some embodiments, the fastener further comprises:

[0026] The inner walls of the upper groove and the lower groove are both provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.1 mm to 0.2 mm.

[0027] In some embodiments, the vehicle assembly comprises:

[0028] The door panel;

[0029] The sheet metal part is installed on the outer wall of the door panel;

[0030] The mounting hole is arranged on the sheet metal part;

[0031] The paint surface is sprayed on the outer wall of the sheet metal part; the rod part of the fastener is arranged in the mounting hole of the sheet metal part, and the plastic coating of the fastener is in contact with the paint surface.

[0032] In some embodiments, the vehicle provided in the present application comprises any one of the above fasteners, and thus has all the beneficial effects of the fastener, which will not be described herein again.

[0033] In a second aspect, the application provides a vehicle door assembly, comprising a door panel, a sheet metal part, a mounting hole and a paint surface, the sheet metal part is mounted on an outer wall of the door panel, the mounting hole is formed on the sheet metal part, the paint surface is sprayed on an outer wall of the sheet metal part, a rod part of a fastener is arranged in the mounting hole of the sheet metal part, and a plastic-coated layer of the fastener is in contact with the paint surface.

[0034] In a third aspect, the application provides a vehicle comprising the fastener provided in the first aspect.

[0035] Compared with the prior art, the application has at least the following technical effects:

[0036] The application provides a fastener, which comprises a rod part, a head part, a plastic-coated layer and a connecting part. The plastic-coated layer is arranged to avoid direct contact between the head part and the sheet metal at the mounting hole part, thereby protecting the sheet metal. The connecting part is arranged to avoid damage to the paint surface of the mounting hole part by the end part of the head part during fastening of the fastener, thereby protecting the sheet metal from being easily damaged. Therefore, the application provides a more effective solution to the problem of paint damage caused by the fastening of the bolt on the sheet metal.

[0037] Additional aspects and advantages of the application will become apparent from the following description, which is provided by way of example only, with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0039] Fig. 1 FIG. 1 is a first perspective view of a fastener according to some embodiments of the application;

[0040] Fig. 2 FIG. 2 is a second perspective view of the fastener according to some embodiments of the application;

[0041] Fig. 3 FIG. 3 is an enlarged view of the structure at A of the fastener according to some embodiments of the application;

[0042] Fig. 4 FIG. 4 is a third perspective view of the fastener according to some embodiments of the application

[0043] REFERENCE NUMERALS:

[0044] 10, head part; 11, inner groove; 112, upper groove; 113, lower groove; 12, end

[0045] 20, rod part; 21, rod body; 22, thread

[0046] 30, plastic coating layer;

[0047] 40, connecting piece; 41, metal gasket; 42, rubber protective sleeve DETAILED DESCRIPTION

[0048] In order to enable a more complete understanding of the above-mentioned objects, features and advantages of the present application, the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0050] The following description refers to the accompanying drawings, which are meant to further clarify the present application. Figs. 1 to 4 A fastener according to some embodiments of the present application is described.

[0051] In some embodiments, referring to FIGS. 1-4, a fastener provided by the present application includes a head 10, a rod portion 20 fastened to the head 10, and a plastic coating layer 30 wrapped around the outer wall of the head 10, with a thickness ranging from 0.05mm to 0.1mm.

[0052] In this embodiment, the head 10 and the rod portion 20 are integrally formed, and the plastic coating layer 30 is wrapped around the head 10. The plastic coating layer 30 is wrapped around the head by hot plastic processing, and the material of the plastic coating layer 30 is P6A plastic. The thickness of the plastic coating layer 30 does not affect the normal use of the fastener.

[0053] In actual operation, when the fastener is used for fastening work, the head 10 rotates at high speed, and the plastic coating layer 30 contacts the paint surface at the mounting hole position. Since the surface of the plastic coating layer 30 is relatively smooth and has low hardness, the paint surface is not easily damaged, thereby protecting the paint surface and further increasing the service life of the paint surface and the metal sheet.

[0054] In some embodiments, the rod portion 20 includes a rod body 21 fastened to the bottom end of the head 10, and threads 22 evenly provided on the outer wall of the rod body 21.

[0055] In this embodiment, the rod portion 20 includes the rod body 21 and the threads 22, which are integrally formed. The rod body 21 and the threads 22 are integrally processed by using the thread rolling or thread rolling method, thereby improving the precision of the rod portion 20.

[0056] In some embodiments, the head 20 comprises: an end head 12, the end head 12 is fixedly connected with the rod part 20, the outer wall of the end head 12 is at least partially wavy, and the end head 12 is circularly truncated at one end of the rod part 20; and an inner groove 11, the inner groove 11 is arranged on the end face of the end head 12 away from the rod part 20.

[0057] In this embodiment, the head 10 comprises the end head 12 and the inner groove 11, the end head 12 and the inner groove 11 are integrally formed, the inner groove 11 is arranged in the end head 12 by laser processing, the inner groove 11 is used to facilitate the fastening operation by means of an electric tool, so that the fastening operation is more convenient, and the outer wall of the end head 12 is at least partially wavy, so as to be distinguished from other fasteners and facilitate the reasonable use of the fastener.

[0058] In some embodiments, the inner groove 11 comprises: an upper groove 112, the upper groove 112 is arranged on one side of the inner groove 11 away from the rod part 20, and the upper groove 112 is in the shape of a plum blossom; and a lower groove 113, the lower groove 113 is arranged on one side of the inner groove 11 close to the rod part 20, and the lower groove 113 is in the shape of a cone.

[0059] In this embodiment, the inner groove 11 comprises the upper groove 112 and the lower groove 113, the upper groove 112 is in the shape of a cone, and the lower groove 113 is in the shape of a cone, so that the fastening tool can be more closely attached to the fastener during the fastening operation of the fastener, the fastener is not easily loosened, the fastening operation is more convenient, and the phenomenon of falling off of the tool and the fastener during the fastening operation is reduced.

[0060] For example, the existing similar fastener, the inner groove 11 is mostly a cross groove and a straight groove, and the fastening tool and the fastener are easily separated during the fastening operation of the fastener due to the rotation of the fastener.

[0061] In some embodiments, the fastener further comprises: a connecting piece 40, the connecting piece 40 is movably sleeved on the outer wall of the rod part 20, and the connecting piece 40 comprises:

[0062] a metal gasket 41, the metal gasket 41 is sleeved on one side of the rod part 20 close to the head 10;

[0063] a rubber protective sleeve 42, the rubber protective sleeve 42 is wrapped on the outer wall of the metal gasket 41, and the thickness of the rubber protective sleeve 42 ranges from 0.1 mm to 0.2 mm.

[0064] In this embodiment, the connecting piece 40 comprises a metal gasket 41 and a rubber protective sleeve 42. The metal gasket 41 partially functions as an isolation for the head 10, so that the bottom end of the head 10 is not in contact with the mounting hole. The rubber protective sleeve 42 is used to isolate the metal gasket 41. The rubber protective sleeve 42 is good in elasticity and smooth in material, so that the rubber protective sleeve 42 can protect the mounting hole part and avoid the problem of paint abrasion. The connecting piece 40 is movably sleeved with the rod part 20, and can be stored in different areas when not in use.

[0065] In some embodiments, the fastener further comprises:

[0066] The outer wall of the rod body 21 and the thread 22 is provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.05 mm to 0.1 mm.

[0067] In this embodiment, the outer wall of the rod body 21 and the thread 22 is provided with a chromium plating layer before the above-mentioned plastic coating operation. The chromium plating layer improves the corrosion resistance of the rod body 21 and the thread 22, and plays a rust-proof role. In addition, the surface of the chromium plating layer 50 is smooth, which can play a decorative role for the rod part 20.

[0068] In some embodiments, the fastener further comprises:

[0069] The outer wall of the end head 12 is provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.1 mm to 0.15 mm.

[0070] In this embodiment, the end head 12 is provided with a chromium plating layer before the above-mentioned plastic coating operation, which improves the corrosion resistance of the end head 12.

[0071] In some embodiments, the fastener further comprises:

[0072] The inner wall of the upper groove 112 and the lower groove 113 is provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.1 mm to 0.2 mm.

[0073] In this embodiment, the upper groove 112 and the lower groove 113 in the inner groove 11 are plated with chromium, which can reduce the rusting of the fastener after long-term storage, so that the fastener cannot be used.

[0074] In some embodiments, the vehicle door assembly comprises:

[0075] A door panel;

[0076] A sheet metal part mounted on the outer wall of the door panel;

[0077] A mounting hole formed on the sheet metal part;

[0078] A paint surface sprayed on the outer wall of the sheet metal part;

[0079] The rod part 20 of the fastener is arranged in the mounting hole of the metal plate, and the plastic layer 30 of the head part 10 is in contact with the paint surface of the metal plate

[0080] In the embodiment, the metal plate is arranged on the door plate, the mounting hole is arranged on the metal plate, and the paint surface is sprayed on the surface of the metal plate. The metal plate is fixed on the door plate by the rod part 20 of the fastener arranged in the mounting hole, and the plastic layer 30 of the outer wall of the head part 10 is in contact with the paint surface of the metal plate. Since the material of the plastic layer 30 is relatively smooth, the friction on the paint surface can be reduced when the fastener rotates at a high speed, and the paint surface is not damaged.

[0081] In some embodiments, the vehicle comprises any one of the above fasteners, thus having all the beneficial effects of the fastener, which will not be repeated here.

[0082] In the embodiment, the metal plate is arranged on the door plate, the mounting hole is arranged on the metal plate, and the paint surface is sprayed on the surface of the metal plate. The metal plate is fixed on the door plate by the rod part 20 of the fastener arranged in the mounting hole, and the plastic layer 30 of the outer wall of the head part 10 is in contact with the paint surface of the metal plate. Since the material of the plastic layer 30 is relatively smooth, the friction on the paint surface can be reduced when the fastener rotates at a high speed, and the paint surface is not damaged.

[0083] The fastener provided in the application avoids the direct contact between the head part 10 and the paint surface of the mounting hole part by arranging the plastic layer 30 around the head part 10 and wrapping the P6A plastic around the head part 10 by hot plastic processing, avoids the damage of the paint surface, further protects the metal plate, prevents the large-area rust of the metal plate after the paint surface is damaged, further reduces the contact between the head part 10 and the paint surface of the mounting hole by the isolation of the connecting part 40 to the bottom end of the head part 10, and provides a more effective solution to the problem of wear and tear of the paint surface when the bolt is fastened on the metal plate.

[0084] In the application, it should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0085] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the indicated technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0086] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be direct connection, or indirect connection through intermediate medium. The term "plurality" refers to two or more, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0087] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0088] In the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0089] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fastener, characterized in that, include: Head (10); The rod (20) is fastened to the head (10); A plastic coating layer (30) is applied to the outer wall of the head (10), and the thickness of the plastic coating layer (30) ranges from 0.05 mm to 0.1 mm.

2. The fastener according to claim 1, characterized in that, The rod (20) includes: The rod (21) is fastened to the bottom end of the head (10); The thread (22) is evenly formed on the outer wall of the rod (21).

3. The fastener according to claim 1, characterized in that, The head (10) includes: End (12), the end (12) is fastened to the rod (20), the outer wall of the end (12) is at least partially wavy, and the end of the end (12) that is attached to the rod (20) is frustoconical; An inner groove (11) is formed on the end face of the end (12) away from the rod (20).

4. The fastener according to claim 3, characterized in that, The inner groove (11) includes: Upper groove (112), the upper groove (112) is opened on the side of the inner groove (11) away from the rod (20), and the upper groove (112) is shaped like a plum blossom; The lower groove (113) is formed on the side of the inner groove (11) near the rod (20), and the lower groove (113) is conical.

5. The fastener according to claim 1, characterized in that, The fastener further includes: a connector (40), which is movably sleeved on the outer wall of the rod (20), and the connector (40) includes: A metal washer (41) is fitted onto the side of the rod (20) near the head (10); A rubber protective sleeve (42) is wrapped around the outer wall of the metal gasket (41), and the thickness of the rubber protective sleeve (42) is in the range of 0.1mm-0.2mm.

6. The fastener according to claim 2, characterized in that, The fastener also includes: The outer walls of the rod (21) and the thread (22) are both provided with a chrome plating layer, the thickness of which ranges from 0.05mm to 0.1mm.

7. The fastener according to claim 3, characterized in that, The fastener also includes: The outer wall of the end (12) is provided with a chromium plating layer, the thickness of which ranges from 0.1mm to 0.15mm.

8. The fastener according to claim 4, characterized in that, The fastener also includes: The inner walls of the upper groove (112) and the lower groove (113) are both provided with a chromium plating layer, and the thickness of the chromium plating layer ranges from 0.1mm to 0.2mm.

9. A door assembly, characterized in that, The door assembly includes: Door panel; Sheet metal parts, which are installed on the outer wall of the door panel; Mounting holes are provided on the sheet metal parts; Paint finish, the paint finish being sprayed onto the outer wall of the sheet metal part; The fastener according to any one of claims 1-8, wherein the shank (20) of the fastener passes through the mounting hole on the sheet metal part, and the plastic coating (30) of the fastener is in contact with the painted surface.

10. A vehicle, characterized in that, The vehicle includes fasteners as claimed in any one of claims 1 to 8.

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