The attachment structure of working of plastics and sheet metal component on a kind of automobile
Technical field
This utility model belongs to automobile technical field, relates to the attachment structure of working of plastics and sheet metal component on a kind of automobile.
Background technology
Automobile includes a large amount of working of plastics and sheet metal component, due to the needs on vehicle structure, working of plastics and sheet metal component need to be installed together, working of plastics and sheet metal component are because of himself characteristic, can not being fixed by the mode welded, therefore the connection between working of plastics and sheet metal component connects typically by plastic buckle or bolt.
As Chinese patent [application number 201220470107.9] plates of automobile is connected buckle with working of plastics, including buckle body, the bottom of described buckle is provided with upper and lower two wing bases, described upper and lower two bases are each passed through the column of buckle, threaded engagement is adopted to be connected between described lower bottom base and column lower end, described upper strata base is rounded, lower bottom base is square, and the both sides of described column are provided with the shell fragment of tapered distribution.Although above-mentioned connection buckle is capable of the connection of sheet metal component and working of plastics, but adopting plastic buckle connected mode to there is the inadequate problem of bonding strength, plastic buckle is susceptible to fracture or deformation, affect fixing of working of plastics and sheet metal component.
With bolts common are following two kinds: after 1, being alignd by the screw of working of plastics and sheet metal component, fixed by screw bolt and nut;2, arranging alignment pin and screw on working of plastics, arrange hole, location and screw on sheet metal component, alignment pin inserts hole, location, then align screw, is fixed by screw bolt and nut.In above-mentioned first kind of way, although being capable of fastening and the positioning function of working of plastics and sheet metal component, but the installation of working of plastics point (i.e. screw) place intensity is poor, when this place deforms, installation will be extremely difficult.Above-mentioned first scheme, owing to being provided with extra alignment pin and hole, location, causes that the volume of working of plastics and sheet metal component becomes big and cost increase, and when assembling, alignment pin is in blind dress state, and does not have guide frame, assembling difficulty.
Summary of the invention
A purpose of the present utility model is to there are the problems referred to above for existing technology, it is proposed that the attachment structure of working of plastics and sheet metal component on a kind of automobile, this attachment structure intensity that technical problem is how to improve working of plastics and sheet metal component connecting portion to be solved.
This utility model is realized by following technical proposal:
The attachment structure of working of plastics and sheet metal component on a kind of automobile, automobile has working of plastics and sheet metal component, described attachment structure includes the screw one being opened on working of plastics and the screw two being opened on sheet metal component, described screw one and screw two are plugged with bolt assembly fixing with sheet metal component for working of plastics jointly, it is characterized in that, described working of plastics has the convex annular protruding to sheet metal component side along one, described convex annular is along a periphery being looped around screw one, and described convex annular leans along end face and the sheet metal component of.
Principle of the present utility model is as follows: can using the screw one on working of plastics and the screw two on sheet metal component as observation port during assembling, bolt assembly is sequentially passed through screw two and screw one, realize Visual assembly so that working of plastics and sheet metal component are connected with each other, position and fasten;Convex annular increases along the thickness of a working of plastics making connecting portion place, screw one surrounding plastic intensity is got a promotion, and due to the elastic performance that working of plastics itself has, therefore shockproof and pretension function can be realized, simultaneously because convex annular makes working of plastics only contact at connecting portion place with sheet metal component along one, therefore decrease the contact area of working of plastics and sheet metal component, therefore, it is possible to reduce frictional impact between the two, decrease noise.
On above-mentioned a kind of automobile in the attachment structure of working of plastics and sheet metal component, the described convex annular medial wall along one and lateral wall are equipped with some equally distributed reinforcements.By arranging reinforcement on the convex annular medial wall along one and lateral wall so that convex annular is further enhanced along the intensity of one.
On above-mentioned a kind of automobile, working of plastics is with the attachment structure of sheet metal component, and described convex annular is integral type structure along one and described reinforcement.Convex annular passes through integrated injection molding along one and reinforcement, compares split-type structural and has better intensity.
On above-mentioned a kind of automobile in the attachment structure of working of plastics and sheet metal component, described working of plastics also having convex annular along two away from the one side of sheet metal component, described convex annular is along two peripheries being looped around screw one.By arranging convex annular along two, it is possible to make nut act on convex annular along two, the connecting portion of working of plastics and sheet metal component directly will not be produced impact.
On above-mentioned a kind of automobile in the attachment structure of working of plastics and sheet metal component, described convex annular along one, convex annular be integral type structure along two and working of plastics.Convex annular along one, convex annular pass through integrated injection molding along two and working of plastics so that the surrounding of screw one thickens, and the pore wall strength of screw one is strengthened, and after integrated injection molding, overall performance is good.
On above-mentioned a kind of automobile in the attachment structure of working of plastics and sheet metal component, described bolt assembly includes screw rod and nut, described screw rod sequentially pass through screw two, convex annular along one, screw one and convex annular along after two with nut screw connection.Working of plastics and sheet metal component being fixed by the cooperation of screw rod and nut, preferably, bolt assembly can adopt welding screw rod to coordinate the form of a nut, and double threaded screw additionally can be adopted to coordinate the form of two nuts.
On above-mentioned a kind of automobile, working of plastics is with the attachment structure of sheet metal component, and described convex annular offers the gathering sill of the screw one that can be led by screw rod along the medial wall of.When installing by offering gathering sill, screw rod can be easily plugged in screw one along gathering sill, reduces installation difficulty, improves efficiency of assembling.
Compared with prior art, on this kind of automobile, working of plastics has the advantage that 1 with the attachment structure of sheet metal component, passes through to arrange convex annular along one, add the thickness around screw one on working of plastics, the hole wall making screw one is strengthened and is played antihunt action, the contact area simultaneously making working of plastics and sheet metal component reduces, and plays shockproof effect;2, by arranging convex annular along two so that nut will not act directly on the screw of working of plastics, it is prevented that working of plastics is caused damage by nut;3, convex annular along one, convex annular adopt integral structure along two and working of plastics, bulk strength is better;4, reinforcement is set along one in convex annular so that convex annular is strengthened along the intensity of one, it is prevented that convex annular is damaged along one, extends the life-span of working of plastics;4, by arranging gathering sill along one in convex annular so that working of plastics and sheet metal component are easier to find the installation site of bolt assembly when assembling, and realize Visual assembly by screw one and screw two.
Accompanying drawing explanation
Fig. 1 is the structural blast figure of the attachment structure of working of plastics and sheet metal component on automobile in this utility model embodiment.
Fig. 2 is the installation diagram of the attachment structure of working of plastics and sheet metal component on automobile in this utility model embodiment.
Fig. 3 is the sectional view of the attachment structure of working of plastics and sheet metal component on automobile in this utility model embodiment.
Fig. 4 is the structure chart of working of plastics in the attachment structure of working of plastics and sheet metal component on automobile in this utility model embodiment.
In figure, 1, working of plastics;2, sheet metal component;3, screw one;4, screw two;5, bolt assembly;51, screw rod;52, nut;6, convex annular is along one;61, reinforcement;62, gathering sill;7, convex annular is along two.
Detailed description of the invention
The following is specific embodiment of the utility model, and in conjunction with accompanying drawing, the technical solution of the utility model is further described, but this utility model is not limited to these embodiments.
As shown in Figure 1, automobile has working of plastics 1 and sheet metal component 2, this attachment structure includes the screw 1 being opened on working of plastics 1 and the screw 24 being opened on sheet metal component 2, screw 1 and screw 24 are plugged with bolt assembly 5 fixing with both sheet metal components 2 for working of plastics 1 jointly, working of plastics 1 has the convex annular protruding to sheet metal component 2 side along 1, convex annular is along one 6 peripheries being looped around screw 1, and convex annular leans along end face and the sheet metal component 2 of 1.Wherein, bolt assembly 5 includes screw rod 51 and nut 52, and the head of screw rod 51 is positioned at the sheet metal component 2 side away from working of plastics 1, the bar portion of screw rod 51 sequentially pass through screw 24, convex annular along 1, screw 1 and convex annular coordinate with nut 52 after 27.In the present embodiment, screw rod 51 is specially welding screw rod, and certainly in other embodiments of the present utility model, bolt assembly 5 can also adopt double threaded screw 51 to coordinate the form of two nuts 52.
As shown in Figure 3 and Figure 4, so that the intensity that convex annular is along 1 is further enhanced, the convex annular medial wall along 1 and lateral wall are equipped with some equally distributed reinforcements 61, reinforcement 61 is at least two, can be additionally three, four or more, setting direction and convex annular along 1 axially identical.Further, convex annular is integral type structure along one 6 and reinforcement 61.Convex annular edge and reinforcement 61 are better by integrated injection molding globality, and intensity is higher.Additionally, convex annular offers the gathering sill 62 of the screw 1 that can be led by bolt along the medial wall of 1, the screw rod 51 of bolt can be easily plugged in screw 1 along gathering sill 62, reduces installation difficulty, improves efficiency of assembling.
As shown in Fig. 1 or 2 or 3, working of plastics 1 also having convex annular along 27 away from the one side of sheet metal component 2, convex annular is along 27 peripheries being looped around screw 1.Such nut 52 acts on convex annular along two 7, and the connecting portion of working of plastics 1 and sheet metal component 2 will not directly produce impact.
As it is shown on figure 3, convex annular along 1, convex annular be integral type structure along 27 and working of plastics 1.Convex annular along 1, convex annular pass through integrated injection molding along 27 and working of plastics 1 so that the surrounding of screw 1 thickens, and the pore wall strength of screw 1 is strengthened, and after integrated injection molding, overall performance is good.
Specific embodiment described herein is only to this utility model spirit explanation for example.Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount the scope that appended claims is defined.