CN207630551U - It is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure - Google Patents
It is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure Download PDFInfo
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- CN207630551U CN207630551U CN201721637543.XU CN201721637543U CN207630551U CN 207630551 U CN207630551 U CN 207630551U CN 201721637543 U CN201721637543 U CN 201721637543U CN 207630551 U CN207630551 U CN 207630551U
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- irregularly
- plastic part
- installation structure
- cylinder
- shaped hole
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure, which is characterized in that the support platform including melting welding column and counterpart；The wherein described melting welding column includes cylinder and the empennage of cylinder surrounding setting；Irregularly-shaped hole is provided in the support platform of the counterpart, the irregularly-shaped hole is composed of main aperture and secondary aperture, and the main aperture is centrally located, two secondary aperture pore size distributions in a strip shape main aperture both sides and three connection by irregularly-shaped hole constitute one it is I-shaped.By the support platform of counterpart and the matched trepanning of melting welding column by general round hole（Or slotted hole）It is changed to irregularly-shaped hole, is changed to be interference fitted by clearance fit, the connection of two plastic parts is realized by being interference fitted.
Description
Technical field
The utility model is related to auto parts fields, and in particular to it is a kind of be connected using thermofussion welding two pieces plastic part when it is pre-
Mounting structure.
Background technology
General automotive upholstery using thermofussion welding be connected two pieces plastic part when, grasped in order to facilitate the carrying and melting welding of plastic part
Make, generally pre-installation structure can be used first to be assembled together.There are two types of conventional pre-installation structures, itself buckle clamping and screw connect
It connects.It needs to do oblique top depanning on itself buckle mold, space need to be ejected, higher to modeling requirement, mold is accordingly complicated, die cost
It is high；Screw pre-installs, and one dozen of screw processes are increased on production line, increases cost of labor.If screw is done on the outer surface,
Also needing to do kennel structure prevents outer surface from shrinking, and oblique top depanning is done on mold, die cost accordingly increases.Both the above pre-installs
To modeling requirement height, die cost is big, and cost of labor is big.
Utility model content
In order to adapt to above-mentioned prior art situation, the purpose of this utility model is that：A kind of novel use hot melt is provided
Pre-installation structure when solid welding connects two pieces plastic part is to solve the various defects of appearance above-mentioned in the prior art.
To achieve the above object, the utility model uses following technical scheme：
It is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure, which is characterized in that including melting welding column and
The support platform of counterpart；Wherein
The melting welding column includes cylinder and the empennage of cylinder surrounding setting；
Irregularly-shaped hole is provided in the support platform of the counterpart, the irregularly-shaped hole is composed of main aperture and secondary aperture, institute
It is centrally located to state main aperture, two secondary aperture pore size distributions in a strip shape main aperture both sides and three connection by irregularly-shaped hole constitute a work
Font.
According to the utility model one embodiment be connected using thermofussion welding two pieces plastic part when pre-installation structure can be into
One step is set as being also respectively provided with symmetrical fixture block on the line direction at two secondary aperture centers.
According to the utility model another embodiment be connected using thermofussion welding two pieces plastic part when pre-installation structure can
The cross section for being further arranged to the main aperture is rounded rectangular.
According to the utility model another embodiment be connected using thermofussion welding two pieces plastic part when pre-installation structure can
The melting welding column is further arranged to be made of 4 symmetrical empennages being arranged positioned at intermediate cylinder and cylinder surrounding,
And the empennage is in a rectangular trapezoid, right-angle side is connected with column side wall, while the cylinder stretches out one section of formation melting welding of empennage
Portion.
According to the utility model another embodiment be connected using thermofussion welding two pieces plastic part when pre-installation structure can
It is further arranged to the cylinder and uses hollow posts.
Compared with prior art, the beneficial effects of the utility model are as follows：
By the support platform of counterpart and the matched trepanning of melting welding column by general round hole（Or slotted hole）It is changed to abnormity
Hole, is changed to be interference fitted by clearance fit, and the connection of two plastic parts is realized by being interference fitted.When assembly, melting welding column from
Irregularly-shaped hole passes through, and the width of irregularly-shaped hole main aperture is 5.4mm, and the both ends in strip hole use radius for 0.75mm semicircles, among it
Using the rectangle of long 10.5mm wide 1.5mm, irregularly-shaped hole flexible deformation is realized with melting welding column and is interference fitted（Melting welding column diameter is
6mm）, this coordinates the reliability that ensure that two plastic parts assembly.
Description of the drawings
Fig. 1 be it is provided by the utility model it is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure signal
Figure；
Fig. 2 be it is provided by the utility model it is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure in abnormity
The vertical view in hole.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Pre-installation structure when the two pieces plastic part connected using thermofussion welding, which is characterized in that including melting welding column 1 and match
The support platform 2 of component；The wherein described melting welding column 1 includes cylinder 11 and the empennage 12 that 11 surrounding of cylinder is arranged；The cooperation
Irregularly-shaped hole 3 is provided in the support platform 2 of part, the irregularly-shaped hole 3 is composed of main aperture 31 and secondary aperture 32, the main aperture 31
In centre position, two 32 pore size distributions in a strip shape of secondary aperture 31 both sides of main aperture and three connection by irregularly-shaped hole 3 constitute an I-shaped
Type.
Symmetrical fixture block 33 is also respectively provided on the line direction at 32 center of two of which secondary aperture.Utilize fixture block 33
The left and right sides of fusion-welded portion 13 is limited.
The cylinder 11 uses hollow posts.The weight of pre-installation structure is reduced by hollow posts, while being reduced and being manufactured into
This.
The cross section of the main aperture 31 is rounded rectangular.Rounded square is conducive to circular cylinder 11 and passes through, and facilitates installation
While, also function to certain fastening effect.
The melting welding column 1 is by 4 symmetrical 12 structures of empennage positioned at intermediate cylinder 11 and 11 surrounding of cylinder setting
At, and the empennage 12 is in a rectangular trapezoid, right-angle side is connected with 11 side wall of cylinder, while the cylinder 11 stretches out empennage 12 1
Section forms fusion-welded portion 13, and uses interference fit on 13 front-rear direction of the fusion-welded portion between main aperture 31.
By the support platform 2 of counterpart and the 1 matched trepanning of melting welding column by general round hole（Or slotted hole）It is changed to different
Shape hole 3, is changed to be interference fitted by clearance fit, and the connection of two plastic parts is realized by being interference fitted.When assembly, melting welding column
1 passes through from irregularly-shaped hole 3, and the width of 3 main aperture 31 of irregularly-shaped hole is 5.4mm, and the both ends in strip hole use radius for 0.75mm semicircles,
The rectangle of long 10.5mm wide 1.5mm, 3 flexible deformation of irregularly-shaped hole is used to realize and be interference fitted with melting welding column 1 among it（Melting welding column 1
A diameter of 6mm）, this coordinates the reliability that ensure that two plastic parts assembly.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. it is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure, which is characterized in that including melting welding column and match
The support platform of component；Wherein
The melting welding column includes cylinder and the empennage of cylinder surrounding setting；
Irregularly-shaped hole is provided in the support platform of the counterpart, the irregularly-shaped hole is composed of main aperture and secondary aperture, the master
Hole is centrally located, two secondary aperture pore size distributions in a strip shape main aperture both sides and three connection by irregularly-shaped hole constitute an I-shaped
Type.
2. it is according to claim 1 it is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure, feature exists
In being also respectively provided with symmetrical fixture block on the line direction at two secondary aperture centers.
3. it is according to claim 2 it is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure, feature exists
In the rounded rectangle in cross section of the main aperture.
4. it is according to claim 3 it is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure, feature exists
In the melting welding column is made of 4 symmetrical empennages being arranged positioned at intermediate cylinder and cylinder surrounding, and the empennage
In a rectangular trapezoid, right-angle side is connected with column side wall, while the cylinder stretches out one section of formation fusion-welded portion of empennage.
A kind of pre-installation knot 5. according to claims 1 to 3 any one is connected using thermofussion welding when two pieces plastic part
Structure, which is characterized in that the cylinder uses hollow posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721637543.XU CN207630551U (en) | 2017-11-30 | 2017-11-30 | It is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721637543.XU CN207630551U (en) | 2017-11-30 | 2017-11-30 | It is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207630551U true CN207630551U (en) | 2018-07-20 |
Family
ID=62854709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721637543.XU Active CN207630551U (en) | 2017-11-30 | 2017-11-30 | It is a kind of be connected using thermofussion welding two pieces plastic part when pre-installation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207630551U (en) |
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2017
- 2017-11-30 CN CN201721637543.XU patent/CN207630551U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |