CN217130056U - Improved anti-loosening connecting fastener - Google Patents
Improved anti-loosening connecting fastener Download PDFInfo
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- CN217130056U CN217130056U CN202220583682.3U CN202220583682U CN217130056U CN 217130056 U CN217130056 U CN 217130056U CN 202220583682 U CN202220583682 U CN 202220583682U CN 217130056 U CN217130056 U CN 217130056U
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Abstract
The utility model provides an improved generation locking hookup fastener that moves, through-hole, the tight bolt that rises, the locking pad of installing in the through-hole of coaxial seting up in the main bolt including the main bolt, the main bolt includes the main bolt head and the main bolt body of rod, the main bolt body of rod is kept away from main bolt head one end and is evenly provided with a plurality of openings around outer circumference, opening and through-hole intercommunication, it is a plurality of the opening makes the main bolt body of rod keep away from the one end of main bolt head and forms the chamber that rises, the through-hole is including being located the equal diameter section of the variable diameter section of the chamber department that rises and other positions, the diameter that becomes the diameter section is less than the diameter section's that waits. The utility model discloses utilize the tight bolt that rises to rise the chamber that rises bottom the king bolt and rise, will rise tight bolt and king bolt together fixed through the locking mat, restriction king bolt's rotation to reach locking not hard up purpose.
Description
Technical Field
The utility model relates to a fastener, concretely relates to locking hookup fastener that moves of improved generation.
Background
Bolt connection is one of the most commonly used fastening modes, loosening is one of the main failure modes of bolt connection, the reduction of clamping force is the main sign of the loosening phenomenon, the bolt loosening phenomenon is more easy to occur under impact load, and great loss is possibly caused. Common fastener anti-loosening methods include friction anti-loosening, mechanical anti-loosening and permanent anti-loosening, wherein spot welding, riveting, bonding and the like are common methods for permanent anti-loosening.
Chinese utility model patent with publication number CN209309082U discloses an anti-drop bolt, which utilizes the tight piece that rises to rise the tight strip that rises, makes the tight strip that rises contact with the inner wall of nut all the time, and the nut rises tightly on the screw rod, and the nut is difficult to become flexible. But the anti-loosening effect is difficult to guarantee due to the structure that the tensioning block of the bolt can rotate without limit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anti-loosening coupling fastener of improved generation solves present anti-drop bolt still can become flexible problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an improved generation locking hookup fastener that moves, includes the main bolt, the main bolt includes the main bolt head and the main bolt body of rod, the through-hole has been seted up to the coaxial in the main bolt, the through-hole runs through the main bolt head and the main bolt body of rod, be provided with the screw thread in the through-hole, the main bolt body of rod is kept away from main bolt head one end and is evenly provided with a plurality of openings around outer circumference, opening and through-hole intercommunication, it is a plurality of the opening makes the main bolt body of rod keep away from the one end of main bolt head and forms the chamber that rises and open, its characterized in that:
the through hole comprises a variable-diameter section and an equal-diameter section, wherein the variable-diameter section is positioned at the expansion cavity, and the equal-diameter section is positioned at other positions;
the improved anti-loosening connecting fastener further comprises a tension bolt installed in the through hole, the tension bolt is screwed into the through hole from the head of the main bolt, the tension bolt comprises a tension bolt head and a tension bolt rod body, a stop cushion is arranged between the tension bolt head and the head of the main bolt, the stop cushion comprises a stop cushion body and a first stop cushion folding edge and a second stop cushion folding edge, the first stop cushion folding edge and the second stop cushion folding edge are arranged on two sides of the stop cushion body, a round hole for the tension bolt rod body to pass through is formed in the stop cushion body, the first stop cushion folding edge is bent to be attached to the side wall of the head of the tension bolt, and the second stop cushion folding edge is bent to be attached to the side wall of the head of the main bolt.
Further, the variable diameter section is tapered.
Further, there are 4 openings, dividing the expansion chamber into 4 parts.
Further, the stop pad body is circular.
The utility model has the advantages that: the utility model discloses a tight bolt rises the chamber that rises bottom the main bolt and rises for extrude each other between the chamber that rises and the spare part, limited the rotation of main bolt, will rise tight bolt and main bolt fastening together through the locking mat, limited the rotation of tight bolt that rises, make the chamber that rises remain the state of rising all the time, thereby further guaranteed that the main bolt can't become flexible, in order to reach the locking purpose that moves.
Drawings
FIG. 1 is a schematic view of the assembly of the present invention;
FIG. 2 is a schematic structural view of a main bolt;
FIG. 3 is a front view of a stop pad;
FIG. 4 is a schematic sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of a tension bolt;
reference numerals: the locking device comprises a main bolt 1, a tensioning bolt 2, a locking pad 3, a round hole 4, a through hole 5, an opening 6, an expansion cavity 7, a main bolt head 8, a main bolt body 9, an equal-diameter section 10, a variable-diameter section 11, a tensioning bolt head 12, a tensioning bolt body 13, a locking pad body 14, a first locking pad folding edge 15 and a second locking pad folding edge 16.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, to achieve the above purpose, the present invention provides the following technical solutions: an improved anti-loosening connecting fastener comprises a main bolt 1, wherein the main bolt 1 comprises a main bolt head 8 and a main bolt rod body 9, a through hole 5 is coaxially formed in the main bolt 1, the through hole 5 penetrates through the main bolt head 8 and the main bolt rod body 9, threads are arranged in the through hole 5, a plurality of openings 6 are uniformly formed in one end, far away from the main bolt head 8, of the main bolt rod body 9 around the outer circumference, the openings 6 are communicated with the through hole 5, and the openings 6 enable one end, far away from the main bolt head 8, of the main bolt rod body 9 to form a rising cavity 7;
the through hole 5 comprises a variable diameter section 11 positioned at the expansion cavity 7 and an equal diameter section 10 at other positions, the diameter of the variable diameter section 11 is smaller than that of the equal diameter section 10, and in the embodiment, the variable diameter section 11 is conical;
the improved anti-loosening connecting fastener further comprises a tension bolt 2 installed in the through hole 5, the tension bolt 2 is screwed into the through hole 5 from the head portion 8 of the main bolt, the tension bolt 2 comprises a tension bolt head 12 and a tension bolt rod body 13, a stop cushion 3 is arranged between the tension bolt head 12 and the head portion 8 of the main bolt, the stop cushion 3 comprises a stop cushion main body 14 and a first stop cushion folding edge 15 and a second stop cushion folding edge 16 which are arranged on two sides of the stop cushion main body 14, the stop cushion main body 14 is provided with a round hole 17 for the tension bolt rod body 13 to pass through, the first stop cushion folding edge 15 is bent to be attached to the side wall of the tension bolt head 12, and the second stop cushion folding edge 16 is bent to be attached to the side wall of the head portion 8 of the main bolt. In this embodiment, the stop pad body 14 is circular.
The utility model discloses a use method does: the main bolt 1 is screwed into a connecting hole of a part of equipment, the part of the equipment is fastened by applying pretightening force, the stopping pad 3 is sleeved into the tension bolt 2, then the tension bolt 2 is screwed into the main bolt 1, when the tension bolt 2 reaches a working position, the expansion cavity 7 of the main bolt 1 is expanded outwards, the diameter of the expansion cavity 7 is increased, an outward force is always applied to the tension cavity 7 of the main bolt 1, the expansion cavity 7 is always kept in an expansion state, the rotation of the main bolt 1 is limited, finally, the first stopping folding edge 15 is bent to be attached to the side wall of the tension bolt head 12, the second stopping pad folding edge 16 is bent to be attached to the side wall of the main bolt head 8, and the main bolt 1 and the tension bolt 2 are fixed together and cannot rotate mutually, so that the purpose of screw connection looseness prevention is achieved.
The foregoing shows and describes the general principles and principal structural features of the invention. The present invention is not limited by the above-mentioned examples, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and improvements fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an improved generation locking hookup fastener that moves, includes main bolt (1), main bolt (1) includes the main bolt head (8) and the main bolt body of rod (9), coaxial through-hole (5) of having seted up in main bolt (1), main bolt head (8) and the main bolt body of rod (9) are run through in through-hole (5), be provided with the screw thread in through-hole (5), main bolt body of rod (9) are kept away from main bolt head (8) one end and are evenly provided with a plurality of openings (6) around the outer circumference, opening (6) and through-hole (5) intercommunication, it is a plurality of opening (6) make the main bolt body of rod (9) keep away from the one end of main bolt head (8) form and rise open chamber (7), its characterized in that:
the through hole (5) comprises a variable-diameter section (11) positioned at the expansion cavity (7) and an equal-diameter section (10) at other positions, and the diameter of the variable-diameter section (11) is smaller than that of the equal-diameter section (10);
the improved anti-loosening connecting fastener also comprises a tension bolt (2) arranged in the through hole (5), the tensioning bolt (2) is screwed into the through hole (5) from the head part (8) of the main bolt, the tension bolt (2) comprises a tension bolt head (12) and a tension bolt body (13), a stop cushion (3) is arranged between the head part (12) of the tensioning bolt and the head part (8) of the main bolt, the stop pad (3) comprises a stop pad body (14) and a first stop pad flap (15) and a second stop pad flap (16) arranged on both sides of the stop pad body (14), the stop cushion body (14) is provided with a round hole (4) for the tension bolt body (13) to pass through, the first stop cushion folding edge (15) is bent to be attached to the side wall of the head part (12) of the tensioning bolt, the second stop pad folding edge (16) is bent to be attached to the side wall of the head portion (8) of the main bolt.
2. An improved anti-loosening coupling fastener, as defined in claim 1, wherein: the variable diameter section (11) is conical.
3. An improved anti-loosening coupling fastener, as defined in claim 1, wherein: the number of the openings (6) is 4, and the expansion cavity (7) is evenly divided into 4 parts.
4. An improved anti-loosening coupling fastener, as defined in claim 1, wherein: the stop pad body (14) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220583682.3U CN217130056U (en) | 2022-03-17 | 2022-03-17 | Improved anti-loosening connecting fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220583682.3U CN217130056U (en) | 2022-03-17 | 2022-03-17 | Improved anti-loosening connecting fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217130056U true CN217130056U (en) | 2022-08-05 |
Family
ID=82644734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220583682.3U Active CN217130056U (en) | 2022-03-17 | 2022-03-17 | Improved anti-loosening connecting fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217130056U (en) |
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2022
- 2022-03-17 CN CN202220583682.3U patent/CN217130056U/en active Active
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