CN207777382U - The pre-buried connection structure of composite material connector - Google Patents
The pre-buried connection structure of composite material connector Download PDFInfo
- Publication number
- CN207777382U CN207777382U CN201721796393.7U CN201721796393U CN207777382U CN 207777382 U CN207777382 U CN 207777382U CN 201721796393 U CN201721796393 U CN 201721796393U CN 207777382 U CN207777382 U CN 207777382U
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- CN
- China
- Prior art keywords
- composite material
- nut
- connecting plate
- connection structure
- chip
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to technical field of composite materials, provide a kind of connection structure that composite material connector is pre-buried, including composite material parts and chip rivet nut；The chip rivet nut includes attaching nut and the connecting plate on attaching nut's outer wall；The connecting plate is fixed on by gel coating on composite material parts；Position corresponding with attaching nut is provided with location hole on the composite material parts.The pre-buried connection structure of the composite material connector of the utility model, by the way that connecting plate is arranged, the bond area for increasing chip rivet nut and composite material parts improves the overall construction intensity and reliability of nut connection, avoids the stress concentration phenomenon that nut connection generates.
Description
Technical field
The utility model is related to technical field of composite materials, more particularly to a kind of connection knot that composite material connector is pre-buried
Structure.
Background technology
Composite material is because comprehensive with high specific strength, high ratio modulus, low thermal expansion, antifatigue, damping energy-absorbing, corrosion-resistant etc.
Functional feature also has both the operational characteristic that anisotropy, design are strong, can altogether be glued with other materials co-curing,
Covering, shaped piece, be pilot and parts exploitation manufacture on have unique advantage, in recent years composite material aviation,
The key areas such as rail traffic, marine cause, special equipment repacking are with more and more extensive.As composite material is each important
The utilization ratio in field is increasing, and composite products, parts are got over other kinds of material structure combination connection request
Come more, due to the independence of product component Elementary Function, most of connection relation generated between composite material is can
The movable connection method of dismounting, pre-buried attaching nut is just at a kind of essential selection on the composite.
The pre-buried mode of generally use mainly has the modes such as tapping, embedded nut after embedded silk braid, embedded metal plate at present,
These modes are more or less during processing technology and use, and there is hidden danger.Embedded silk braid：It is primarily adapted for use in heavy wall zero
Component be easy to cause hanging wire since composite material is that the poor embedded tapping technology difficulty of multilayer fabric material shear strength is larger
The defective effect later stage connects.Tapping after embedded steel plate：Operating procedure is complicated, since later stage drilling, tapping will produce part by force
Strong impact and frictional heat may cause composite material be layered, loosen, the consequences such as ablation, influence connection reliability.Embedded nut：
It is easy to happen to loosen since the contact area of nut and adhesives is limited and falls phenomenon.
Utility model content
Technical problem to be solved in the utility model is：A kind of connection structure that composite material connector is pre-buried is provided,
The connection structure improves the reliability of built-in fitting connection.
Technical solution adopted by the utility model to solve its technical problems is：The pre-buried connection knot of composite material connector
Structure, including composite material parts and chip rivet nut；The chip rivet nut include attaching nut and mounted on connection
Connecting plate on nut outer wall；The connecting plate is fixed on by gel coating on composite material parts；The composite material zero
Position corresponding with attaching nut is provided with location hole on component.
Further, the attaching nut includes the thread segment and construction section being fixedly connected；The connecting plate setting is being pacified
It fills in section；The positioning convex platform being additionally provided on the construction section between connecting plate and composite material parts.
Further, at least one glue nail hole is provided on the connecting plate；It is provided in the glue nail hole and the glue
The integrally formed positioning glue nail of coating.
Further, the area of the connecting plate is 10~15 times of attaching nut's outer circumferential area.
Further, on the outer surface of the chip rivet nut, the chip rivet nut and composite material parts
Link position be provided with enhancing composite layer.
Further, coverage area of the enhancing composite layer on composite material parts is more than the connecting plate
10~30mm of periphery.
Further, the outside of the outer end opening of the attaching nut has is integrally formed with the enhancing composite layer
Head cover.
The utility model has the beneficial effects that：The pre-buried connection structure of the composite material connector of the utility model, passes through
Connecting plate is set, the bond area of chip rivet nut and composite material parts is increased, improves the entirety of nut connection
Structural strength and reliability avoid the stress concentration phenomenon that nut connection generates.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of chip rivet nut in the utility model；
Fig. 3 is the vertical view of Fig. 2；
Fig. 4 is the attachment structure schematic diagram of chip rivet nut and positioning bolt in the utility model.
Reference numeral is in figure：1- composite material parts, 2- chip rivet nuts, 3- gel coatings, 4- enhance composite wood
The bed of material, 5- positioning bolts, 6- papery sealant tapes, 11- location holes, 21- attaching nut, 22- connecting plates, 211- thread segments,
212- construction sections, 213- positioning convex platforms, 221- glue nail hole, 31- position glue nail, 41- head covers.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples：
As shown in Figures 1 to 4, the pre-buried connection structure of composite material connector described in the utility model, including it is compound
Material parts 1 and chip rivet nut 2；The chip rivet nut 2 is including attaching nut 21 and is mounted on attaching nut 21
Connecting plate 22 on outer wall；The connecting plate 22 is fixed on by gel coating 3 on composite material parts 1；The composite material
Position corresponding with attaching nut 21 is provided with location hole 11 on parts 1.
The type and size of the attaching nut 21 needs to select according to practical connection, and attaching nut 21 will by hand riveter
Its riveting is on connecting plate 22.The connecting plate 22 be carbon fiber, glass fiber compound material sheet material, fiber content 75% with
On, it has the characteristics that intensity is high, density is high, punching property is good, crushing resistance is good；The thickness of connecting plate 22 is according to attaching nut's 21
Size determines, ensures the stability that connecting plate 22 is connect with attaching nut 21.The gel coating 3 is composite material adhesive, example
Such as：Composite structure glue, quick-drying A/B glue, silica gel etc..Connecting plate 22 is fixed on composite material parts 1 by gel coating 3
On.By the way that connecting plate 22 is arranged, the bond area of chip rivet nut 2 and composite material parts 1 is increased, nut is improved
The overall construction intensity and reliability of connection avoid the stress concentration phenomenon that nut connection generates.
Fig. 2 show the structural schematic diagram of chip rivet nut 2, to prevent attaching nut 21 with connecting plate 22 in riveting
In the process the screw thread of attaching nut 21 is caused to damage；Preferably, the attaching nut 21 includes the spiral shell being fixedly connected
Line section 211 and construction section 212；The connecting plate 22 is arranged on construction section 212；It is additionally provided with and is located on the construction section 212
Positioning convex platform 213 between connecting plate 22 and composite material parts 1.The positioning convex platform 213, the thread segment 211 and peace
It fills section 212 to be integrally formed, construction section 212 is loop configuration, and construction section 212 is fixed on by hand riveter on connecting plate 22, for side
Just connection bolt passes through construction section 212 and is fixed on the internal thread of thread segment 211, and the inside dimension of the construction section 212 is big
In the internal diameter of the thread segment 211.By the way that positioning convex platform 213 is arranged, prevents attaching nut 21 from moving along its axis, further carry
The accuracy that high attaching nut 21 positions.
To further increase the fastness connected between connecting plate 22 and composite material parts 1, on the connecting plate 22
It is provided at least one glue nail hole 221；It is provided in the glue nail hole 221 and is followed closely with 3 integrally formed positioning glue of the gel coating
31.A diameter of 5mm of the glue nail hole 221, eight glue nail hole 221 are uniformly arranged on connecting plate 22.By the way that glue nail hole is arranged
221 follow closely 31 with positioning glue, not only increase the connection area of connecting plate 22 and gel coating 3, the connection improved between them is strong
Degree, and the twisting resistance that gel coating 3 is born can also be reduced.
The shape of the connecting plate 22 is rectangle, and the surrounding of the connecting plate 22 is provided with fillet, the attaching nut 21
It is fixed on the center of connecting plate 22, the area of the connecting plate 22 is 10~15 times of 21 outer circumferential area of the attaching nut.
To further enhance the stability connected between chip rivet nut 2 and composite material parts 1, the chip is drawn
On the outer surface of riveting nut 2, that the link position of the chip rivet nut 2 and composite material parts 1 is provided with enhancing is compound
Material layer 4.The enhancing composite layer 4 is by 200g/m2Epoxy resin-matrix glass fabric or carbon cloth multilayer fabric
The two component fast dried resin adhesive composition of composite material and setting on them.Further, the enhancing composite layer
4 coverage area on composite material parts 1 is more than the connecting plate 22 10~30mm of periphery, preferably 20mm.
To prevent the internal thread of impurity pollution attaching nut 21, the outside of the outer end opening of the attaching nut 21 have with
The 4 integrally formed head cover 41 of enhancing composite layer.The outer end of the attaching nut 21 is referred to far from composite material zero
That one end of component 1.
The realization process of the pre-buried connection structure of composite material connector described in the utility model is as follows：As shown in figure 4,
First, attaching nut 21 and connecting plate 22 are processed respectively, then by 21 riveting of attaching nut on connecting plate 22, complete chip
Rivet nut 2 it is prefabricated；Secondly, location hole 11 is processed on composite material parts 1, and positioning bolt 5 is passed through into location hole 11
It is connect with chip rivet nut 2, draws upper mark around 1 binding site of connecting plate 22 and composite material parts with marking pen
Line；Then positioning bolt 5 is removed, chip rivet nut 2 is removed, gel coating 3 is uniformly coated between mark line and location hole 11；
Chip rivet nut 2 is replaced in original position again, itself and composite material parts 1 are locked with positioning bolt 5,
Glue of having a surplus after overlaying uniformly overflows the firm positioning glue of formation from glue nail hole 221 follows closely 31；After the solidification of gel coating 3, positioning
The top end part that bolt 5 is combined with chip rivet nut 2 will be sealed using papery sealant tape 6 in conjunction with end, prevent later stage glue
Stick invades on screw thread；It is equal in chip rivet nut 2 and chip rivet nut 2 and the link position of composite material parts 1
It is even to coat two component fast dried resin adhesive, 200g/m is used in combination2Epoxy resin-matrix glass fabric or carbon cloth multilayer knit
Object composite material carries out enhancing covering, forms enhancing composite layer 4；Covering position should be more than 22 periphery 20mm of connecting plate；
Composite layer 4 to be reinforced removes positioning bolt 5 after curing, and completes the company of chip rivet nut 2 and composite material parts 1
It connects.
Chip rivet nut 2 forms a firm connection spiral shell on the corresponding link position of composite material parts 1
Various functions structure, material, component or equipment, can be reliably attached to compound by mother 21 by movable bolt connection type
On material parts 1, the practicability of composite material is made fully to get application and play.
Claims (7)
1. the pre-buried connection structure of composite material connector, it is characterised in that：Including composite material parts (1) and chip staking
Nut (2)；The chip rivet nut (2) includes attaching nut (21) and the connecting plate on attaching nut (21) outer wall
(22)；The connecting plate (22) is fixed on by gel coating (3) on composite material parts (1)；The composite material parts
(1) position corresponding with attaching nut (21) is provided with location hole (11) on.
2. the pre-buried connection structure of composite material connector according to claim 1, it is characterised in that：The attaching nut
(21) include the thread segment (211) being fixedly connected and construction section (212)；The connecting plate (22) is arranged on construction section (212)；
The positioning convex platform being additionally provided on the construction section (212) between connecting plate (22) and composite material parts (1)
(213)。
3. the pre-buried connection structure of composite material connector according to claim 1 or 2, it is characterised in that：The connection
At least one glue nail hole (221) is provided on plate (22)；It is provided in the glue nail hole (221) and the gel coating (3) one
Molding positioning glue follows closely (31).
4. the pre-buried connection structure of composite material connector according to claim 1 or 2, it is characterised in that：The connection
The area of plate (22) is 10~15 times of the attaching nut (21) outer circumferential area.
5. the pre-buried connection structure of composite material connector according to claim 1 or 2, it is characterised in that：The chip
On the outer surface of rivet nut (2), the chip rivet nut (2) and the link position of composite material parts (1) be provided with
Enhance composite layer (4).
6. the pre-buried connection structure of composite material connector according to claim 5, it is characterised in that：The enhancing is compound
Coverage area of the material layer (4) on composite material parts (1) is more than the connecting plate (22) 10~30mm of periphery.
7. the pre-buried connection structure of composite material connector according to claim 5, it is characterised in that：The attaching nut
(21) outside of outer end opening has and the integrally formed head cover of the enhancing composite layer (4) (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796393.7U CN207777382U (en) | 2017-12-20 | 2017-12-20 | The pre-buried connection structure of composite material connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796393.7U CN207777382U (en) | 2017-12-20 | 2017-12-20 | The pre-buried connection structure of composite material connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777382U true CN207777382U (en) | 2018-08-28 |
Family
ID=63227273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721796393.7U Expired - Fee Related CN207777382U (en) | 2017-12-20 | 2017-12-20 | The pre-buried connection structure of composite material connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777382U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329420A (en) * | 2019-04-26 | 2019-10-15 | 武汉理工大学 | The mechanical connecting structure and method of composite material superstructure and steel main hull |
| CN112628275A (en) * | 2019-11-05 | 2021-04-09 | 徐兴振 | Formula hinge built-in fitting is covered in strenghthened type |
| CN113333243A (en) * | 2021-06-07 | 2021-09-03 | 中南大学 | Method for controlling thickness of adhesive film |
| CN113580591A (en) * | 2021-07-23 | 2021-11-02 | 卡奔碳纤维技术(东莞)有限公司 | Bonding base of embedded nut and installation method of embedded nut |
-
2017
- 2017-12-20 CN CN201721796393.7U patent/CN207777382U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329420A (en) * | 2019-04-26 | 2019-10-15 | 武汉理工大学 | The mechanical connecting structure and method of composite material superstructure and steel main hull |
| CN112628275A (en) * | 2019-11-05 | 2021-04-09 | 徐兴振 | Formula hinge built-in fitting is covered in strenghthened type |
| CN112628275B (en) * | 2019-11-05 | 2023-06-23 | 徐兴振 | Reinforced inner-masking type hinge embedded part |
| CN113333243A (en) * | 2021-06-07 | 2021-09-03 | 中南大学 | Method for controlling thickness of adhesive film |
| CN113333243B (en) * | 2021-06-07 | 2022-05-27 | 中南大学 | Method for controlling thickness of adhesive film |
| CN113580591A (en) * | 2021-07-23 | 2021-11-02 | 卡奔碳纤维技术(东莞)有限公司 | Bonding base of embedded nut and installation method of embedded nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 Termination date: 20211220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |