CN109973475A - A kind of two-sided connection combination apparatus - Google Patents
A kind of two-sided connection combination apparatus Download PDFInfo
- Publication number
- CN109973475A CN109973475A CN201910351558.7A CN201910351558A CN109973475A CN 109973475 A CN109973475 A CN 109973475A CN 201910351558 A CN201910351558 A CN 201910351558A CN 109973475 A CN109973475 A CN 109973475A
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- Prior art keywords
- connector
- flange
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- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002131 composite material Substances 0.000 claims abstract description 37
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 229920003023 plastic Polymers 0.000 claims abstract description 28
- 239000011162 core material Substances 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000004575 stone Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002301 combined effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Finishing Walls (AREA)
Abstract
The invention discloses a kind of two-sided connection Zu He Zhuan Catching-rabbits, including rotatable hinged connection, applied to fiber reinforcement, there is honeycomb core material reinforcement, plastics are the composite material of substrate, composite board including no core material, curved surface plate, the connection of the connected object of shell mould material is combined, connected object further includes metal material, glass material, plastic material, wood materials, stone material, cement material, chemical synthetic material, the present invention connects combination uniform stressed, bonding strength is high, Lian Jie Zhuan Catching-rabbits lightweight, combination easy to disassemble, facilitate local damage repair and replacement.
Description
Technical field
It is plate, curved surface plate, easy to disassemble group of shell mould material the present invention relates to a kind of two-sided connection Welded joint
The connection Welded joint of conjunction.
Background technique
Existing plate, curved surface plate, shell mould material combined connection group easy to disassemble close dress Catching-rabbits, especially with fiber reinforcement,
Plastics are the composite material of substrate, using drilling on the composite, bolt, rivet interlacement, bonding strength can only up to 30~
Connection Welded joint described in 50%, for another example CN2013100076881, CN2017111285472, banding pattern connector is by steel
Silk encompasses screw type layered body, including longitudinal two sides have triangular form flange, longitudinal two sides to have perpendicular type flange, can only be compound
The external surrounding single side of material shell mould inwardly wraps up connection, and periphery lining is also needed to have the centripetal force of support construction support Wrap device；
The connection not against support construction that not can solve the plate, curved surface plate, shell mould material Demountable combined-type of composite material is combined.
Summary of the invention
In order to overcome in the prior art, using fiber reinforcement, there are round plastic honeycomb thicker core material reinforcement, plastics as substrate
Plate, curved surface plate, the shell mould material of composite material, the difficult problem of connection combination, the banding pattern connector can only be in shell mould material
Periphery single side connection, also need shell mould material periphery lining support construction support defect problem and plate, curved surface plate, cannot
The defect problem of connection, also without the defect problem that can be rotated function, the present invention uses the two-sided connection of banding pattern connector, is being connected
Hole is set in object edge and connected object, with line by two-sided banding pattern connector and connected object edge and is passed through
Hole is strained and fixed and is integrated by winding, completes connection combination, is further included that connector bends to semi-circular, is combined into hinge
Formula connection.
The technical solution adopted by the present invention to solve the technical problems is a kind of two-sided connection combination apparatus, including banding pattern
Connector is connected object, and banding pattern connector encompasses screw type layered body by stripe shape body, including longitudinal two sides have triangular form convex
The flat pattern face connector of edge, longitudinal two sides have the flange-type face connector of triangular form flange, longitudinal two sides to have perpendicular type flange
Flange-type face connector is connected object edge and is nearby provided with compatible groove, flange, which is characterized in that described is double
Face connection combination apparatus is the banding pattern connector described in the two-sided Fang Catching-rabbits for being connected object, and connected object includes plate, song
Panel material, shell mould material, two-sided connected object edge are nearby provided with compatible groove, flange, and connection type includes solid
Fixed pattern connection, turnable connection, connection are convex including plane type connection, the connection of double flange face type, a face plane another side
The connection of edge face type, the fixed structure of two-sided connector and connected object are using connected object edge placement, including side
Along neighbouring groove triangular form bottom position, flange square position Fen Bie She Catching-rabbits hole, respectively with any for including line, silk, rope, band
Kind, wound across hole and tense after the stripe shape body of two-sided connector, constitute fixed structure, further include the line in fiber, silk, rope,
It takes and smears the solidification of Ge pre-soaked resin, be respectively adopted after all being wound including the stripe shape body every and tense, apart windings stripe shape
Any scheme in body tension, the fixed connection further includes connector and connected object edge seam crossing and connector
Between be placed with hole plane gasket.
Above-mentioned two-sided connection combination apparatus, it is turnable to connect, it is suitable for plate, is banding pattern hinge connection type, packet
Include plane banding pattern hinge connector, convex surface banding pattern hinge connector, plane and convex surface banding pattern hinge connector, the simple banding pattern in convex surface
Hinge connector, hinge connector are semi-circular to encompass screw type layered body, including longitudinal two by resilient metal strip in semi-circular
End has symmetrical triangular form flange, longitudinal both ends to have symmetrical perpendicular type flange, is connected object edge two sides nearby
It is provided with compatible groove, flange, the semicircle for the hinge connector fixed in two connected objects is mutually inserted, intermediate
It is inserted into round tube or axis, in round tube near connected object edge, the curved face type gasket of adaptation can be placed, gasket is pasted
It is fixed on connected object edge wall, banding pattern hinge connector processing method, including being passed through using the banding pattern connector
Mould punching processing scheme.
Above-mentioned two-sided connection combination apparatus, connected object include composite board, and composite material curved surface plate is answered
Condensation material shell mould material, the composite material are that two sides is dilute with fiber, including carbon fiber, glass fibre, superhigh molecular weight polyethylene
Fiber, ceramic fibre, basalt fibre, boron fibre enhancing, substrate be plastics, including metal, metal oxide, ceramics it is compound
Material, the composite material further include that middle layer core material is reinforced, and core material includes honeycomb, fibrofelt, foam, the honeycomb packet
Include plastics, aramid fiber, metal material, the plastics include diamond pattern, round, are wrapped in the diamond pattern, round plastic honeycomb core material
Include filled and process.
Above-mentioned two-sided connection combination apparatus is connected object She Catching-rabbits hole, drilling can be used, further include described two
Face fiber-reinforced layer, plastics be substrate layer fiber smear include pre-soaked resin after, it is uncured before, be embedded into stripe shape body, wait consolidate
Type is further taken out after change into hole.
Above-mentioned two-sided connection combination apparatus is connected object, further includes metal material, glass material, plastic material, wood
The connection combination of material, stone material, cement material, the plate of chemical synthetic material, curved surface plate, shell mould material.
The invention has the advantages that the present invention use two-sided connection combination apparatus, solve with fiber reinforcement, have it is round
Plate, the curved surface plate, shell mould for the composite material that plastic honeycomb, diamond pattern plastic honeycomb, foam core material are reinforced, plastics are substrate
Material cannot connect or connect the difficult defect problem of combination, reach high-intensitive, lightweight connection combined effect, and the present invention is also suitable
The composite material of thin core material is combined in connection, such as aramid fiber honeycomb, the slim core material composite material that fibrofelt is core material also solve
It is substrate without core material composite material that rotatable hinged connection problem, which also further includes by reinforcing material, plastics of fiber,
Connection, above-mentioned various connections all reach high-intensitive, lightweight connection combined effect, the especially round plastic honeycomb core of thicker
The composite material of material, use scope is limited due to being limited to connection hardly possible, after applying the present invention can expanded application range；The present invention
Metal material, glass material, plastic material, wood materials, stone material, water are applied also for the advantages of its high intensity, lightweight
Mud material, the plate of chemical synthetic material, curved surface plate, shell mould material connection combination and hinged connection, detachable group of the present invention
Close, facilitate local damage repair and replacement, such as carbon fibre composite is at high cost, the prior art it is difficult because connecting due to certain components only
It is readily replaceable that combination can be connected using large area manufacture, the present invention, and small area manufacture can be used, save manufacturing time and have more
Economy.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that the two-sided flat pattern of composite material connects cross-sectional；
Fig. 2 is that the two-sided flat pattern flange-type of composite material connects cross-sectional；
Fig. 3 connect cross-sectional with flange-type face for composite material flat pattern face；
Fig. 4 is composite material blank hinge formula connector cross-sectional；
Fig. 5 is hinged connection part side schematic view；
Fig. 6 is that two-sided flat pattern face connecting line is strained and fixed cross-sectional；
Fig. 7 is that two-sided flange-type face connecting line is strained and fixed cross-sectional；
The two-sided connector line of Fig. 8 hinge type is strained and fixed cross-sectional；
Fig. 9 is plane connector screw type layered body schematic diagram；
Figure 10 is plane connector screw type layered body cross-sectional；
Figure 11 is flange-type connector screw type layered body schematic diagram；
Figure 12 is that flange-type connector screw type layered body shows that cross section is intended to；
Figure 13 is simple flange-type connector screw type layered body schematic diagram；
Figure 14 is simple flange-type connector screw type layered body cross-sectional；
1. composite board in figure, 2. connected object edges, 3. fiber reinforcements, 4. round plastic honeycomb core materials, 5. two sides
There is the flat pattern face connector of triangular form flange, there are the flange-type face connector of triangular form flange in 6. two sides, and there are perpendicular type in 7. two sides
The flange-type face connector of flange, 8. lines, 9. have hole plane gasket, 10. curved face type gaskets, the connection of 11. plane banding pattern hinges
Part, 12. convex surface banding pattern hinge connectors, 13. planes and convex surface banding pattern hinge connector, the simple banding pattern hinge connection in 14. convex surfaces
Part, 15. round tubes.
Specific embodiment
[embodiment 1] two-sided connection combination apparatus includes banding pattern attachment device, is connected object, and banding pattern attachment device includes
Banding pattern connector, connector are that screw type layered body is encompassed by stripe shape body, and longitudinal two sides have the flat pattern face of triangular form flange to connect
Fitting 5, two-sided connected object edge 2 are nearby provided with compatible groove either flange, and connected object is two-sided fibre
Any one of dimension enhancing 3, round plastic honeycomb core material 4, diamond pattern plastic honeycomb core material, foamed material are the reinforcement of core village, substrate
For plastics, including the thicker composite board 1 that any one of metal, metal oxide, ceramics are substrate, as shown in Figure 1,
The banding pattern connector is placed around at the two-sided edge of thicker composite material, in order to make the flange of banding pattern connector with
The two-sided triangular form groove of thicker composite board 1 either flange is mutually caught in, using at thicker composite board 1 pair
Face, it perforates in triangular form bottom portion of groove or between the right-angled corner of flange, including be connected 2 side seam of object edge
In, with include line 8, silk, rope, band any wound across hole be strained and fixed on the stripe shape body of two-sided connector, further include
The line of fiber, silk, restrict, take smear Ge pre-soaked resin solidification, be all strained and fixed using stripe shape body every, further include stripe shape body
Interval radical is strained and fixed, and the fixed connection further includes that hole is placed with outside connector and connected 2 seam of object edge
Plane gasket 9, as shown in Figure 6,7；The perforation includes composite material double-side fibre layer, smears the solidification of Ge pre-soaked resin
Perforation before perforating or solidify afterwards, perforation is drilling after solidification, and perforation is to be guided to perforate with cone body before solidifying, later in hole
Pre-buried stripe shape body after cured takes out stripe shape body at hollow bore；It is connected object and uses groove or flange scheme, be according to quilt
The requirement of articles is selected, and if you need to smooth type, as shown in Fig. 1,6,9,10, groove scheme, the groove can be selected
Scheme has the flat pattern face connector 5 of triangular form flange using two sides, is such as not necessarily to smooth type, as shown in Fig. 2,7,11,12, can be selected
Flange scheme, the flange scheme have the flange-type face connector 6 of triangular form flange using two sides, and program bonding strength is excellent
In groove scheme, the requirement for being for another example connected object is the smooth type of one side, another side without under conditions of demand, as Fig. 3,6,7,9,
10, shown in 11,12, a face groove, another side flange scheme can be selected, such as required not without smooth type with combined strength is connect
Height, simple type flange scheme, which can be selected, has the flange-type face connector 7 of perpendicular type flange using two sides as shown in Figure 13,14,
After above-mentioned two component of connected object connection, foam is can be filled in the gap for the seam crossing that is connected；Composite material curved surface plate, shell mould
The connection combination of material is same as described above.
[embodiment 2]
It uses aramid fiber honeycomb or fibrofelt for the above-mentioned composite material of core material, or the above-mentioned composite material without core material, can be used
The two-sided flange scheme for being connected object setting connects combination, as shown in Fig. 2,7,11,12,.
[embodiment 3]
Composite board uses the two-sided connection of hinge type, suitable for the connected object of rotating requires, including it is thicker core material, thin
Type core material, the composite board without core material, as shown in Figure 4,5, two-sided turnable connection is banding pattern hinge connection type,
Including plane banding pattern hinge connector 11, convex surface banding pattern hinge connector 12, plane and convex surface banding pattern hinge connector 13, convex surface
Simple banding pattern hinge connector 14, hinge connector is semi-circular to encompass screw type layered body by resilient metal strip in semi-circular,
There is symmetrical triangular form flange including longitudinal both ends, being connected object edge 2, nearby two sides is provided with compatible groove, convex
The semicircle of edge, the banding pattern hinge connector 11 fixed in two connected objects is mutually inserted, centre insertion round tube 15 or
Axis can place the curved face type gasket 10 of adaptation in round tube 15 near connected object edge, gasket be pasted and fixed on by
In articles edge wall.The two-sided connector of banding pattern hinge use hole described in embodiment 1, edge scheme, with include line 8,
Silk restricts, is strained and fixed on any stripe shape body for winding two-sided connector across hole of band, as shown in figure 8, banding pattern hinge connects
Fitting processing method further includes being completed the process using the banding pattern connector by mould punching in addition to direct machine-shaping.
[embodiment 4]
Above-mentioned two-sided connection Zu He Zhuan Catching-rabbits scheme, be also applicable in connected object be metal material, glass material, plastic material,
The connection combination of wood materials, stone material, cement material, the plate of chemical synthetic material, curved surface plate, shell mould material, extremely such as Fig. 1
Shown in 14.
Claims (5)
1. a kind of two-sided connection combination apparatus, including banding pattern connector, connected object, banding pattern connector are encompassed by stripe shape body
Screw type layered body has the flat pattern face connector (5) of triangular form flange, longitudinal two sides to have triangular form flange including longitudinal two sides
Flange-type face connector (6), longitudinal two sides have the flange-type face connector (7) of perpendicular type flange, the connected object side
Compatible groove, flange are nearby provided with along (2), which is characterized in that the two-sided connection combination apparatus is to be connected
The two-sided of object puts banding pattern connector described in Catching-rabbits, and connected object includes plate, curved surface plate, shell mould material, two-sided to be connected
It connecing object edge (2) and is nearby provided with compatible groove, flange, connection type includes fixed connection, turnably connects,
Connection includes plane type connection, the connection of double flange face type, face plane another side flange surface type connection, two-sided connector
It is using groove triangular form bottom near connected object edge (2) position, including edge with the fixed structure of connected object
Position, flange square position Fen Bie She Catching-rabbits hole, respectively with include line (8), silk, rope, band any to pass through hole winding double
After the stripe shape body of face connector tense, constitute fixed structure, further include fiber line (8), silk, restrict, take smear Ge preimpregnation
Resin solidification, be respectively adopted the stripe shape body include every all wind after tense, apart windings stripe shape body tense in it is any
Scheme, the fixed connection further include that connector and connected object edge (2) are placed between seam crossing and connector
Hole plane gasket (9).
2. two-sided connection combination apparatus according to claim 1, which is characterized in that the turnable connection is to use
Banding pattern hinge connection type in plate, including plane banding pattern hinge connector (11), convex surface banding pattern hinge connector (12),
Plane and convex surface banding pattern hinge connector (13), the simple banding pattern hinge connector (14) in convex surface, the hinge connector is in half
It is round, it is semi-circular that screw type layered body is encompassed by resilient metal strip, there is symmetrical triangular form flange including longitudinal both ends, indulge
There is symmetrical perpendicular type flange to both ends, is connected object edge and is nearby provided with compatible groove, flange in two sides, two
The semicircle for the hinge connector that the sixth of the twelve Earthly Branches is fixed in a connected object is mutually inserted, centre insertion round tube (12) or axis, round
(12) are managed near connected object edge (2), the curved face type gasket (10) of adaptation can be placed, gasket, which is pasted and fixed on, to be connected
It connects on object edge (2) wall, banding pattern hinge connector processing method includes passing through mould punching using the banding pattern connector
Processing scheme.
3. two-sided connection combination apparatus according to claim 1 or 2, which is characterized in that the connected object includes
Composite board (1), composite material curved surface plate, composite shell profile, the composite material are two sides with fiber, packet
Include the dilute fiber of carbon fiber, glass fibre, superhigh molecular weight polyethylene, ceramic fibre, basalt fibre, boron fibre enhancing (3), substrate
For plastics, including metal, metal oxide, ceramics composite material, the composite material further include middle layer core material reinforce,
Core material includes honeycomb, fibrofelt, foam, and the honeycomb includes plastics, aramid fiber, metal material, the plastics include diamond pattern,
It is round, it include filled and process in the diamond pattern, round plastic honeycomb core material (4).
4. according to claim 1 or two-sided connection combination apparatus described in 2,3, which is characterized in that the connected object is set
Catching-rabbits hole, can be used drilling, further include the two sides fiber reinforcement (3), plastics be substrate layer fiber smear include in advance
After resin pickup, it is uncured before, be embedded into stripe shape body, further take out type after cured into hole.
5. two-sided connection combination apparatus according to claim 1, which is characterized in that the connected object further includes
Metal material, glass material, plastic material, wood materials, stone material, cement material, the plate of chemical synthetic material, curved slab
The connection combination of material, shell mould material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910351558.7A CN109973475A (en) | 2019-04-28 | 2019-04-28 | A kind of two-sided connection combination apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910351558.7A CN109973475A (en) | 2019-04-28 | 2019-04-28 | A kind of two-sided connection combination apparatus |
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| Publication Number | Publication Date |
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| CN109973475A true CN109973475A (en) | 2019-07-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910351558.7A Pending CN109973475A (en) | 2019-04-28 | 2019-04-28 | A kind of two-sided connection combination apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194147A (en) * | 2020-03-06 | 2020-05-22 | 安徽延达智能科技有限公司 | Steel-carbon fiber composite material explosion-proof shell structure |
| CN111452395A (en) * | 2020-03-26 | 2020-07-28 | 中车青岛四方机车车辆股份有限公司 | Curved surface composite material connecting structure, forming method and railway vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676350A (en) * | 2017-11-15 | 2018-02-09 | 杭州友凯船艇有限公司 | It is a kind of to coat the attachment means that two sections of outsides of connection are body flanges |
-
2019
- 2019-04-28 CN CN201910351558.7A patent/CN109973475A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676350A (en) * | 2017-11-15 | 2018-02-09 | 杭州友凯船艇有限公司 | It is a kind of to coat the attachment means that two sections of outsides of connection are body flanges |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194147A (en) * | 2020-03-06 | 2020-05-22 | 安徽延达智能科技有限公司 | Steel-carbon fiber composite material explosion-proof shell structure |
| CN111452395A (en) * | 2020-03-26 | 2020-07-28 | 中车青岛四方机车车辆股份有限公司 | Curved surface composite material connecting structure, forming method and railway vehicle |
| CN111452395B (en) * | 2020-03-26 | 2021-11-12 | 中车青岛四方机车车辆股份有限公司 | Curved surface composite material connecting structure, forming method and railway vehicle |
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Application publication date: 20190705 |