CN213575044U

CN213575044U - Fastening bolt assembly

Info

Publication number: CN213575044U
Application number: CN202022481649.3U
Authority: CN
Inventors: 董服相; 郑新中; 刘明君
Original assignee: Zhejiang Qiangli Bolt Co ltd
Current assignee: Zhejiang Qiangli Bolt Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-29
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a fastening bolt subassembly belongs to bolt assembly technical field. It has solved the not good problem of current bolt assembly locking effect. This fastening bolt subassembly, including the bolt main part that has the external screw thread and rather than screw-thread fit's lock nut, set up the inside sunken ring channel of axial on lock nut's the lower terminal surface, lock nut is located the ring channel and is provided with rather than being connected and stretching out the outer installation casing of lock nut, has seted up a plurality of on the periphery wall of installation casing and has followed the installation cavity that the external screw thread direction set up, a plurality of all be provided with the locking unit that is used for strengthening the locking effect in the installation cavity. The utility model has the advantages of good locking effect.

Description

Fastening bolt assembly

Technical Field

The utility model belongs to the technical field of the bolt assembly, a fastening bolt subassembly is related to.

Background

The bolt is a kind of fastening piece, and is a kind of mechanical parts which are used for fastening connection and have very wide application. The fastener can be seen in various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical engineering, instruments, appliances, supplies and the like, and is the most widely applied mechanical basic part. However, the reliability of the self-locking in the dynamic load is reduced, the problem of loosening and falling is easy to occur, and the normal operation of the equipment is influenced.

Disclosure of Invention

The utility model aims at providing a fasten effectual bolt assembly to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a fastening bolt subassembly, includes the bolt main part that has the external screw thread and rather than screw-thread fit's lock nut, its characterized in that, lock nut's lower terminal surface on set up the inside sunken ring channel of axial, lock nut is located the ring channel and is provided with rather than being connected and stretch out the outer installation casing of lock nut, the periphery wall of installation casing on seted up a plurality of and followed the installation cavity that the external screw thread direction set up, a plurality of all be provided with the locking unit that is used for strengthening the locking effect in the installation cavity.

In a fastening bolt subassembly of foretell, lock nut be located the ring channel opening part and be provided with rather than linking firmly and prevent that the installation casing from breaking away from lock nut's spacing unit mutually, this spacing unit comprises inner ring and outer loop, inner ring and outer loop all through a plurality of screw with lock nut links firmly mutually, the installation casing lie in all be provided with radial outside protruding and with inner ring and outer loop matched with bulge portion on the inside and outside periphery wall of upper end department.

In a foretell fastening bolt subassembly, the locking unit constitute by sealed lid, buffer spring and locking post, and buffer spring's both ends respectively with locking post and sealed lid inconsistent, sealed lid set up the opening part that the installation casing is located the periphery wall, the locking post set up in the installation intracavity to through buffer spring with the bolt main part is inconsistent.

In a fastening bolt subassembly of foretell, the installation casing be located the internal perisporium opening part and be provided with the bellying of radial inside arch, the locking post be located the installation intracavity one end inside, all be provided with radial outside arch on the periphery wall also and with bellying complex bulge section.

Compared with the prior art, this fastening bolt subassembly has following advantage:

1. after the nut is self-locked, the mounting shell can be pulled out according to the condition, and the locking unit is assembled in the mounting shell, so that the mounting shell has a double locking function, the locking effect is improved, and meanwhile, when the mounting shell is in dynamic load movement, the reliability in self-locking is ensured due to the arrangement of the buffer spring, the mounting shell is prevented from being loosened too fast, and the service life of the mounting shell is prolonged.

Drawings

Fig. 1 is a schematic sectional view of the fastening bolt assembly.

In the figure, 1, a bolt body; 2. locking the nut; 3. an annular groove; 4. installing a shell; 5. a mounting cavity; 6. a locking unit; 7. an inner ring; 8. an outer ring; 9. a convex ring part; 10. a sealing cover; 11. a buffer spring; 12. a locking post; 13. a raised portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the fastening bolt component comprises a bolt main body 1 with external threads and a locking nut 2 in threaded fit with the bolt main body, wherein an annular groove 3 which is recessed inwards in the axial direction is formed in the lower end face of the locking nut 2, the locking nut 2 is positioned in the annular groove 3 and is connected with the annular groove and extends out of the locking nut 2, a plurality of installation cavities 5 which are distributed at intervals along the direction of the external threads and enable the installation shells 4 to be communicated with the inside and the outside are formed in the peripheral wall of the installation shells 4, a plurality of locking units 6 for strengthening the locking effect are arranged in the installation cavities 5, each locking unit 6 comprises a sealing cover 10, a buffer spring 11 and a locking column 12, two ends of each buffer spring 11 are respectively abutted against the corresponding locking column 12 and the corresponding sealing cover 10, the sealing covers 10 are arranged at openings on the peripheral wall of the installation shells 4, and the locking columns, and through buffer spring 11 with bolt body 1 is inconsistent, when locking post 12 stretches out through buffer spring 11, the top of locking post 12 and the wall between the double-phase adjacent screw thread of corresponding double-screw bolt body are inconsistent in locking post 12 top, set up on the periphery wall with external screw thread radian matched with cambered surface, installation casing 4 is located the internal perisporium opening part and is provided with radial inside bellied bellying 13, locking post 12 is located the installation cavity 5 in one end, also all be provided with radial outside protruding and with bellying 13 matched with bulge portion 9 on the periphery wall.

As the preferred structure, the locking nut 2 is located the 3 openings of ring channel and is provided with the spacing unit that links firmly and prevent the installation casing 4 from breaking away from the locking nut 2 mutually, this spacing unit comprises inner ring 7 and outer loop 8, inner ring 7 and outer loop 8 all link firmly through a plurality of screw with locking nut 2 mutually, all be provided with radial outside protruding and with inner ring 7 and outer loop 8 matched with collar portion 9 on the inside and outside wall that the installation casing 4 is located upper end department, the end face that inner ring 7 and outer loop 8 are located and laminate mutually with collar portion 9 is provided with the axial and extends the arch to ring channel 3 in, to the transversal L shape that personally submits of inner ring 7 and outer loop 8.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a fastening bolt subassembly, including bolt main part (1) that has the external screw thread and rather than screw-thread fit's lock nut (2), its characterized in that, the lower terminal surface of lock nut (2) on set up axial inside sunken ring channel (3), lock nut (2) are located ring channel (3) and are provided with rather than being connected and stretch out the outer installation casing (4) of lock nut (2), the periphery wall of installation casing (4) on seted up a plurality of and followed installation cavity (5), a plurality of that the external screw thread direction set up all be provided with locking unit (6) that are used for strengthening the locking effect in installation cavity (5).

2. The fastening bolt assembly according to claim 1, characterized in that the locking nut (2) is provided at the opening of the annular groove (3) with a limiting unit which is fixedly connected with the annular groove and prevents the mounting housing (4) from being detached from the locking nut (2), the limiting unit is composed of an inner ring (7) and an outer ring (8), the inner ring (7) and the outer ring (8) are fixedly connected with the locking nut (2) through a plurality of screws, and the inner and outer peripheral walls of the mounting housing (4) at the upper end are provided with protruding ring portions (9) which protrude radially outwards and are matched with the inner ring (7) and the outer ring (8).

3. The fastening bolt assembly of claim 1, characterized in that the locking unit (6) is composed of a sealing cover (10), a buffer spring (11) and a locking post (12), two ends of the buffer spring (11) respectively contact with the locking post (12) and the sealing cover (10), the sealing cover (10) is disposed at an opening of the mounting housing (4) on the peripheral wall, and the locking post (12) is disposed in the mounting cavity (5) and contacts with the bolt body (1) through the buffer spring (11).

4. A fastening bolt assembly according to claim 3, characterized in that the mounting housing (4) is provided with a radially inwardly protruding protrusion (13) at the opening of the inner peripheral wall, and the inner and outer peripheral walls of the locking column (12) at the inner end of the mounting cavity (5) are provided with a radially outwardly protruding collar portion (9) which is engaged with the protrusion (13).