CN215762728U

CN215762728U - Spacing mechanical fastener with firm connection structure

Info

Publication number: CN215762728U
Application number: CN202120659288.9U
Authority: CN
Inventors: 蔡镔滨
Original assignee: Nanjing Binteng Standard Parts Co ltd
Current assignee: Nanjing Binteng Standard Parts Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-02-08
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a limiting mechanical fastener with a stable connection structure, which comprises a limiting block, a threaded rod and a hexagonal nut, wherein the limiting block is fixedly arranged at one end of the threaded rod, the hexagonal nut is in threaded connection with the threaded rod, a plurality of limiting guide grooves are formed in the threaded rod, the limiting guide grooves are formed in the periphery of the threaded rod, the hexagonal nut comprises a first hexagonal nut and a second hexagonal nut, a circle of annular inclined pressing block is arranged at the bottom of the second hexagonal nut, a limiting mechanism and an extrusion block are arranged on the first hexagonal nut, and the extrusion block is annularly arranged at the top of the first hexagonal nut and is connected with the inclined pressing block. The limiting mechanism on the nut is matched with the limiting guide groove on the threaded rod, so that the nut can be effectively limited and prevented from rotating and loosening, the nut can be further screwed up through the inclined pressing block and the extrusion block, and the nut is prevented from loosening to cause the fastening action of the fastening piece to be lost.

Description

Spacing mechanical fastener with firm connection structure

Technical Field

The utility model relates to the field of parts, in particular to a limiting mechanical fastener with a stable connection structure.

Background

Fasteners are a very widely used class of mechanical parts for fastening connections. The fastener has wide application industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees. Thus, one type of fastener that has a national standard is also referred to as a standard fastener, or simply a standard. For example, the screw and the nut are the most common fasteners, the conventional nut does not have any limit setting when in use, and after the nut is installed, if the time is too long, loosening may occur, and the fastening effect is lost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problems in the prior art, and provides a limiting mechanical fastener with a stable connection structure.

In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme:

the utility model provides a spacing mechanical fastener with firm connection structure, includes stopper, threaded rod and hexagon nut, the fixed one end that sets up at the threaded rod of stopper, hexagon nut and threaded rod threaded connection, be provided with a plurality of spacing guide ways on the threaded rod, it is a plurality of spacing guide way set up around the threaded rod, hexagon nut includes first hexagon nut and second hexagon nut, second hexagon nut's bottom is provided with the annular oblique briquetting of round, be provided with stop gear and extrusion piece on the first hexagon nut, the extrusion piece is the annular and sets up in first hexagon nut's top to be connected with the oblique briquetting, stop gear sets up in first hexagon nut's side to with spacing guide way. By adopting the technical scheme, when the first hexagonal nut is locked on the threaded rod, the limiting guide block on the limiting mechanism is clamped in the limiting guide groove, so that the first hexagonal nut can only be screwed up in the forward direction and cannot rotate in the reverse direction; when the second hexagonal nut is locked, the inclined pressing block is screwed on the extruding block, so that the second hexagonal nut is stressed to deform and is tightly clamped on the threaded rod and the first hexagonal nut, and the screwed hexagonal nut is fastened, stable and not easy to loosen.

Preferably, at least two limiting mechanisms are arranged. Adopt this technical scheme for increase the stability of first hexagon nut when spacing.

Preferably, the limiting mechanism comprises a limiting guide block, a threaded shell and a spring, the spring is arranged inside the threaded shell, one side of the threaded shell is provided with an inner hexagon, the other side of the threaded shell is provided with a guide groove, the guide groove is connected with the limiting guide block, one side of the limiting guide block is connected with the spring, and the other side of the limiting guide block is connected with the limiting guide groove in a telescopic mode. By adopting the technical scheme, the limiting guide block is stressed to retract inwards, and is reset without stress; the threaded shell is used for being locked on one side of the first hexagonal nut and can also be unscrewed from one side of the first hexagonal nut, so that the hexagonal nut is convenient to disassemble.

Preferably, the limiting guide groove comprises a limiting surface and a guide surface which is arranged at the bottom of the limiting surface and connected with the outer side of the threaded rod. By adopting the technical scheme, the limiting surface is used for limiting when the first hexagon nut rotates reversely; the guide surface is used for limiting the guide block for guiding in forward rotation.

Preferably, the second hexagon nut is made of 45# steel. By adopting the technical scheme, the inclined pressing block on the second hexagonal nut is pressed on the extrusion block, and the second hexagonal nut and the first hexagonal nut are prevented from loosening.

Preferably, the surfaces of the inclined pressing block and the extrusion block are provided with raised anti-skid lines, and the height of the anti-skid lines is set to be 0.2-1 mm; the inclined angles of the inclined pressing block and the extrusion block are set to be 10-20 degrees. By adopting the technical scheme, the second hexagonal nut 302 is pressed on the first hexagonal nut when being locked, so that the second hexagonal nut is prevented from loosening.

The utility model has the beneficial effects that: novel in design, simple structure, convenient to use compares with prior art, and stop gear on its nut not only can effectively spacing prevent that the nut gyration is not hard up with the spacing guide way cooperation on the threaded rod, can further increase the mutual tightening between the nut through the oblique briquetting that sets up and extrusion piece moreover, prevents that the nut is not hard up, leads to the fastener to lose fastening.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a schematic view relating to the present invention;

FIG. 2 is a first partial cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of a partial cross-sectional structure according to the present invention;

fig. 4 is a schematic structural view of a limiting mechanism according to the present invention.

In the figure: the limiting block comprises a limiting block 1, a threaded rod 2, a hexagon nut 3, a limiting guide groove 4, an inclined pressing block 5, a limiting mechanism 6, an extrusion block 7, a limiting guide block 8, a threaded shell 9, a spring 10, an inner hexagon 11, a first hexagon nut 301 and a second hexagon nut 302.

Detailed Description

The utility model is further described with reference to the accompanying drawings in which:

referring to fig. 1 to 4, a mechanical spacing fastener with a stable connection structure comprises a spacing block 1, a threaded rod 2 and a hexagon nut 3, the limiting block 1 is fixedly arranged at one end of the threaded rod 2, the hexagonal nut 3 is in threaded connection with the threaded rod 2, the threaded rod 2 is provided with a plurality of limiting guide grooves 4, the limiting guide grooves 4 are arranged around the threaded rod 2, the hexagonal nut 3 comprises a first hexagonal nut 301 and a second hexagonal nut 302, the bottom of the second hexagonal nut 302 is provided with a ring-shaped inclined pressing block 5, the first hexagonal nut 301 is provided with a limiting mechanism 6 and an extrusion block 7, the extrusion block 7 is annularly arranged at the top of the first hexagonal nut 301, and is connected with the inclined pressing block 5, and the limiting mechanism 6 is arranged on the side of the first hexagon nut 301 and is connected with the limiting guide groove 4. By adopting the technical scheme, when the first hexagonal nut 301 is locked on the threaded rod 2, the limiting guide block 8 on the limiting mechanism 6 is clamped in the limiting guide groove 4, so that the first hexagonal nut 301 can only be screwed up in the forward direction and cannot rotate in the reverse direction; when the second hexagonal nut 302 is locked, the inclined pressing block 5 is screwed on the extruding block 7, so that the second hexagonal nut is stressed to deform and tightly clamped on the threaded rod 2 and the first hexagonal nut 301, and the screwed hexagonal nut 3 is fastened, stable and not easy to loosen.

Preferably, at least two limiting mechanisms 6 are arranged. By adopting the technical scheme, the stability of the first hexagonal nut 301 during limiting is improved.

Preferably, the limiting mechanism 6 comprises a limiting guide block 8, a threaded shell 9 and a spring 10, the spring 10 is arranged inside the threaded shell 9, an inner hexagonal head 11 is arranged on one side of the threaded shell 9, a guide groove is formed in the other side of the threaded shell, the guide groove is connected with the limiting guide block 8, one side of the limiting guide block 8 is connected with the spring 10, and the other side of the limiting guide block is telescopically connected with the limiting guide groove 4. By adopting the technical scheme, the limiting guide block 8 is stressed to retract inwards, and is reset without stress; the threaded shell 9 is used for being locked on one side of the first hexagon nut 301, and can also be unscrewed from one side of the first hexagon nut 301, so that the hexagon nut 3 can be conveniently detached.

Preferably, the limiting guide groove 4 comprises a limiting surface and a guide surface which is arranged at the bottom of the limiting surface and connected with the outer side of the threaded rod 2. By adopting the technical scheme, the limiting surface is used for limiting when the first hexagon nut 301 rotates reversely; the guide surface is used for guiding the limiting guide block 8 during forward rotation.

Preferably, the second hexagon nut 302 is made of 45# steel. By adopting the technical scheme, the inclined pressing block 5 on the second hexagonal nut 302 is pressed on the extruding block 7, and the second hexagonal nut 302 and the first hexagonal nut 301 are prevented from loosening.

Preferably, the surfaces of the inclined pressing block 5 and the extrusion block 7 are provided with raised anti-skid grains, and the height of the anti-skid grains is set to be 0.2-1 mm; the inclined angles of the inclined pressing block 5 and the extrusion block 7 are set to be 10-20 degrees. By adopting the technical scheme, the second hexagonal nut 302 is pressed on the first hexagonal nut 301 when being locked, so that the second hexagonal nut 302 is prevented from loosening. DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

When the nut is actually used, the first hexagon nut is screwed on the threaded rod, so that the limiting guide block in the first hexagon nut limiting mechanism is connected with the limiting guide groove, and the first hexagon nut is prevented from rotating and loosening after being screwed; then, the second hexagonal nut is screwed on the threaded rod, so that the inclined pressing block on the second hexagonal nut and the extrusion block on the first hexagonal nut are pressed together to generate deformation, the pressing force is increased, the second hexagonal nut is prevented from loosening, the screwing of the hexagonal nut is further increased, and the hexagonal nut is prevented from loosening, so that the fastening effect of the fastening piece is lost.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a spacing mechanical fastener with firm connection structure, includes stopper (1), threaded rod (2) and hexagon nut (3), the fixed one end that sets up at threaded rod (2) of stopper (1), hexagon nut (3) and threaded rod (2) threaded connection, its characterized in that: be provided with a plurality of spacing guide ways (4) on threaded rod (2), it is a plurality of spacing guide ways (4) set up around threaded rod (2), hexagon nut (3) are including first hexagon nut (301) and second hexagon nut (302), the bottom of second hexagon nut (302) is provided with round annular oblique briquetting (5), be provided with stop gear (6) and extrusion piece (7) on first hexagon nut (301), extrusion piece (7) are the annular and set up in the top of first hexagon nut (301) to be connected with oblique briquetting (5), stop gear (6) set up in the side of first hexagon nut (301) to with spacing guide ways (4).

2. The mechanical spacing fastener with stable connection structure as claimed in claim 1, wherein: the number of the limiting mechanisms (6) is at least two.

3. The mechanical spacing fastener with stable connection structure as claimed in claim 1, wherein: stop gear (6) are including spacing guide block (8), screw shell (9) and spring (10), spring (10) set up in the inside of screw shell (9), one side of screw shell (9) is provided with allen key (11), and the opposite side is provided with the guide way, the guide way is connected with spacing guide block (8), one side and spring (10) of spacing guide block (8) are connected, and the opposite side telescopic is connected with spacing guide way (4).

4. The mechanical spacing fastener with stable connection structure as claimed in claim 1, wherein: the limiting guide groove (4) comprises a limiting surface and a guide surface which is arranged at the bottom of the limiting surface and connected with the outer side of the threaded rod (2).

5. The mechanical spacing fastener with stable connection structure as claimed in claim 1, wherein: the second hexagonal nut (302) is made of 45# steel.

6. The mechanical spacing fastener with stable connection structure as claimed in claim 1, wherein: the surfaces of the inclined pressing block (5) and the extrusion block (7) are provided with raised anti-skid grains, and the height of the anti-skid grains is set to be 0.2-1 mm; the inclined angle of the inclined pressing block (5) and the inclined angle of the extrusion block (7) are set to be 10-20 degrees.