CN218718117U - Anti-loosening rivetless supporting plate nut - Google Patents
Anti-loosening rivetless supporting plate nut Download PDFInfo
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- CN218718117U CN218718117U CN202222638579.7U CN202222638579U CN218718117U CN 218718117 U CN218718117 U CN 218718117U CN 202222638579 U CN202222638579 U CN 202222638579U CN 218718117 U CN218718117 U CN 218718117U
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- bushing
- supporting plate
- nut
- pallet
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Abstract
The utility model provides a locking pine takes off no riveting layer board nut, include: a pallet (1); the pallet (1) comprises: a pallet body (11) and a bushing (12); the inner diameter of the bushing (12) is gradually increased from the end part to the root part; the outer surface of the bushing (12) is provided with an annular corrugated groove (121); the outer diameter of the bushing (12) is not larger than the diameter of the connecting hole of the connected piece (5); when the bushing (12) is inserted into the connecting hole of the connected piece (5), the hole penetrating device (4) enters from the through hole (111) and penetrates out from one end of the bushing (12) far away from the supporting plate body (11) to press the inner wall of the bushing (12); after the bushing (12) is installed, the annular corrugated groove (121) is tightly attached to the inner surface of the connecting hole of the connected piece (5), and a blank area chamfered by the hole edge of the connected piece (5) is filled in one end, far away from the supporting plate body (11), of the bushing (12).
Description
Technical Field
The utility model belongs to the technical field of the aviation, concretely relates to locking pine takes off no riveting layer board nut.
Background
Pallet nuts are typically used in structural forms that need to provide adequate connection strength but do not have access to or construction difficulties. For example, the joint between the wing leading edge skin and the front spar is usually connected by using a pallet nut because the joint is a closed structure without a construction passage. Common pallet nuts can be divided into riveted pallet nuts and rivetless pallet nuts.
The riveted supporting plate nut is fixed on a structure to be connected through a rivet. The connection mode is very easily influenced by the riveting quality of the rivet, and the coaxiality of the support plate nut and the bolt hole can be influenced by slight deviation of the riveting position of the rivet, so that the installation of the bolt is influenced; meanwhile, as the riveting hole is too close to the bolt hole, cracks are easily generated in the connecting area; in addition, the connected structures need to be frequently opened for maintenance of the internal areas of the structures. After the supporting plate nut is used for many times, the performance of the supporting plate nut is reduced, and the supporting plate nut needs to be replaced again. Due to the characteristics of rivet connection, a rivet hole is easily damaged during rivet withdrawal, and the structural fatigue characteristics are influenced.
The rivetless supporting plate nut is fixed on the structure in a mode of extruding the hole wall. Although the limit of rivet connection is eliminated, the supporting plate nut is easy to fall off along with the increase of the service life of the structure. If a certain airplane is re-installed with the wing front edge after being maintained on the outfield, the whole front edge has to be re-disassembled because the rivetless supporting plate nut falls off, and the front edge is re-installed after the fallen supporting plate nut is installed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a locking pine takes off no riveting layer board nut solves the problem that current no riveting layer board nut very easily drops.
The utility model provides a locking pine takes off no riveting layer board nut, include: the device comprises a supporting plate 1, a nut 2, a cotter pin 3 and a through hole device 4;
the pallet 1 includes: the supporting plate comprises a supporting plate body 11 and a bushing 12 vertically arranged on the supporting plate body 11; the supporting plate body 11 is provided with a through hole 111 communicated with the lining 12; one side of the supporting plate body 11, which is not provided with the bushing 12, is provided with a first limiting edge 112 and two opposite second limiting edges 113, and the second limiting edges 113 are provided with flanges for clamping the nut 2; the two second limiting edges 113 are also provided with fixing holes 1131 corresponding in position, and the cotter pin 3 penetrates through the fixing holes 1131 to clamp the nut 2;
the inner diameter of one end of the bushing 12 far away from the supporting plate body 11 is smaller than that of one end of the bushing 12 close to the supporting plate body 11; the outer surface of the bushing 12 is provided with an annular corrugated groove 121; the outer diameter of the bushing 12 is not larger than the diameter of the connecting hole of the connected piece;
the perforating device 4 is used for entering from the through hole 111 and penetrating out from one end of the bushing 12 far away from the supporting plate body 11 to press the inner wall of the bushing 12 when the bushing 12 is inserted into the connecting hole of the connected piece;
after the bushing 12 is installed, the annular corrugated groove 121 is tightly attached to the inner surface of the connecting hole of the connected piece, and the blank area chamfered by the hole edge of the connected piece is filled in one end of the bushing 12 far away from the supporting plate body 11.
Alternatively, the inner diameter of the bushing 12 becomes larger from the end far from the pallet body 11 to the end near the pallet body 11.
Optionally, the outer surface of the end of the bushing 12 close to the pallet body 11 is provided with an annular corrugated groove 121.
Optionally, a via 111; and is provided with a chamfer.
Optionally, the perforator 4 includes: a ball and a clamping post connected;
the spherical surface is smooth and has a diameter greater than the maximum inner diameter of the bushing 12.
Optionally, after the bushing 12 is installed, the length of the bushing 12 corresponds to the thickness of the connected member.
The utility model provides a locking pine takes off no riveting layer board nut has had the advantage that has riveting layer board nut and no riveting layer board nut simultaneously concurrently. The nut structure not only overcomes the characteristics of high requirement on the fixing and mounting precision of the nut structure with the riveting supporting plate, easy generation of fatigue cracks in a connecting area and difficult replacement; meanwhile, the characteristics that the rivetless supporting plate nut is not firmly connected and is easy to fall off in the later period are overcome. The nut connecting structure has the advantages of convenience in use, capability of quickly replacing the nut, high connection reliability and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an anti-loosening rivetless supporting plate nut;
FIG. 2 is a schematic view of the installation of the anti-loosening rivetless splint nut;
FIG. 3 is a schematic view of the anti-loosening rivetless splint nut after installation;
FIG. 4 is a schematic structural diagram of a perforator;
FIG. 5 is a schematic view of a nut;
FIG. 6 is a schematic view of the split pin configuration;
description of reference numerals:
1-a supporting plate;
11-pallet body;
111-vias;
112-a first limit edge;
113-a second limiting edge;
1131-cotter pin attachment holes;
12-a liner;
121-corrugated flutes;
2-a nut;
21-a sliding plate;
22-weight reduction grooves;
3-a cotter pin;
4-a perforator;
5-connected piece.
Detailed Description
The following describes the anti-loosening rivetless supporting plate nut in detail with reference to the attached drawings.
The structure, the installation and the use process of the anti-loosening rivetless supporting plate nut provided by the utility model are provided by combining with the figures 1-6,
the utility model provides a locking pine takes off no riveting layer board nut, include: the device comprises a supporting plate 1, a nut 2, a cotter pin 3 and a through hole device 4;
the pallet 1 includes: the supporting plate comprises a supporting plate body 11 and a bushing 12 vertically arranged on the supporting plate body 11; the supporting plate body 11 is provided with a through hole 111 communicated with the lining 12; one side of the supporting plate body 11, which is not provided with the bushing 12, is provided with a first limiting edge 112 and two opposite second limiting edges 113, and the second limiting edges 113 are provided with flanges for clamping the nut 2; the two second limiting edges 113 are also provided with fixing holes 1131 corresponding in position, and the cotter pin 3 penetrates through the fixing holes 1131 to clamp the nut 2;
the inner diameter of one end of the bushing 12 far away from the supporting plate body 11 is smaller than that of one end of the bushing 12 close to the supporting plate body 11; the outer surface of the bushing 12 is provided with an annular corrugated groove 121; the outer diameter of the bushing 12 is not larger than the diameter of the connecting hole of the connected piece;
the perforating device 4 is used for entering from the through hole 111 and penetrating out from one end of the bushing 12 far away from the supporting plate body 11 to press the inner wall of the bushing 12 when the bushing 12 is inserted into the connecting hole of the connected piece;
after the bushing 12 is installed, the annular corrugated groove 121 is tightly attached to the inner surface of the connecting hole of the connected piece, and the blank area chamfered by the hole edge of the connected piece is filled in one end of the bushing 12 far away from the supporting plate body 11.
When in use, the supporting plate 1 is firstly inserted into the connected piece 5, and then the through hole device 4 is inserted into the supporting plate 1, as shown in figure 2. Pulling the perforator 4 along the direction shown in fig. 2, when the perforator 4 passes through the lining 12, because the diameter of the reamer 4 is slightly larger than the inner diameter of the lining 12, the perforator 4 generates uniform annular extrusion force on the lining 12, the lining 12 is fixed on the bolt hole of the connected piece 5 due to extrusion deformation, then the redundant part of the lining 12 beyond the bolt hole is milled, and the mounting of the pallet 1 is completed as shown in fig. 3. At this time, the corrugated groove 121 at the root of the bush 12 is tightly attached to the bolt hole of the connected member 5 due to the pressing, thereby preventing the pallet 1 from rotating axially along the bolt hole; meanwhile, the lining 12 can not fall off due to the fact that the lining 12 is tightly attached to the hole wall to play a certain fixing role; finally, the blank area chamfered by the hole edge of the connected piece 5 is filled by the lining, so that the supporting plate 1 is completely fixed on the connected piece.
After the supporting plate 1 is installed, the nut 2 is pushed into the supporting plate, and then the split pin 3 is used for locking. When the nut 2 is replaced, the nut 2 can be taken out only by withdrawing the cotter pin 3.
It is understood that when the hole edge of the attached member 5 is not chamfered, the hole edge of the attached member 5 is chamfered first.
The above embodiments are only for illustrating the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an anti-loosening rivetless supporting plate nut which characterized in that includes: the device comprises a supporting plate (1), a nut (2), a cotter pin (3) and a hole penetrating device (4);
the pallet (1) comprises: the supporting plate comprises a supporting plate body (11) and a bushing (12) vertically arranged on the supporting plate body (11); the supporting plate body (11) is provided with a through hole (111) communicated with the lining (12); one side of the supporting plate body (11) which is not provided with the bushing (12) is provided with a first limiting edge (112) and two opposite second limiting edges (113), and the second limiting edges (113) are provided with flanges for clamping the nut (2); the two second limiting edges (113) are also provided with fixing holes (1131) corresponding in position, and the cotter pin (3) penetrates through the fixing holes (1131) to clamp the nut (2);
the inner diameter of one end of the bushing (12) far away from the supporting plate body (11) is smaller than that of one end of the bushing (12) close to the supporting plate body (11); the outer surface of the bushing (12) is provided with an annular corrugated groove (121); the outer diameter of the bushing (12) is not larger than the diameter of the connecting hole of the connected piece;
the perforating device (4) is used for entering from the through hole (111) and penetrating out from one end of the bushing (12) far away from the supporting plate body (11) to extrude the inner wall of the bushing (12) when the bushing (12) is inserted into the connecting hole of the connected piece;
after the bushing (12) is installed, the annular corrugated groove (121) is tightly attached to the inner surface of the connecting hole of the connected piece, and a blank area chamfered by the hole edge of the connected piece is filled in one end, far away from the supporting plate body (11), of the bushing (12).
2. The anti-loosening rivetless pallet nut of claim 1 wherein the inner diameter of the bushing (12) becomes progressively larger from the end distal from the pallet body (11) to the end proximal to the pallet body (11).
3. The anti-loosening rivetless pallet nut according to claim 1, characterized in that the outer surface of the bushing (12) near one end of the pallet body (11) is provided with an annular corrugated groove (121).
4. The anti-loosening rivetless pallet nut of claim 1 wherein the through hole (111); and is provided with a chamfer.
5. The loosening-preventing rivetless pallet nut of claim 4 wherein the perforator (4) comprises: a ball and a clamping post connected;
the spherical surface is smooth and has a diameter greater than the maximum inner diameter of the bushing (12).
6. The anti-loosening rivetless pallet nut of claim 1 wherein the length of the sleeve (12) corresponds to the thickness of the connected component after the sleeve (12) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222638579.7U CN218718117U (en) | 2022-09-30 | 2022-09-30 | Anti-loosening rivetless supporting plate nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222638579.7U CN218718117U (en) | 2022-09-30 | 2022-09-30 | Anti-loosening rivetless supporting plate nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218718117U true CN218718117U (en) | 2023-03-24 |
Family
ID=85638707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222638579.7U Active CN218718117U (en) | 2022-09-30 | 2022-09-30 | Anti-loosening rivetless supporting plate nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218718117U (en) |
-
2022
- 2022-09-30 CN CN202222638579.7U patent/CN218718117U/en active Active
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