CN216642743U

CN216642743U - Fixing nut

Info

Publication number: CN216642743U
Application number: CN202122091412.9U
Authority: CN
Inventors: 张炳昌
Original assignee: Ningbo Changle Hose Clamps Co ltd
Current assignee: Ningbo Changle Hose Clamps Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-05-31
Anticipated expiration: 2031-09-01

Abstract

The fixing nut comprises a cylindrical nut post and a threaded sleeve which are integrally formed, wherein a threaded section and a non-threaded section are arranged on an inner ring of the nut post, a circle of ratchets and a circle of grooves are arranged on an outer ring of the nut post, the threaded sleeve is D-shaped, two coaxial arc-shaped through holes are formed in the plane of the threaded sleeve, a circular counter bore and a threaded sleeve bulge are arranged on the inner ring of the threaded sleeve, the arc-shaped through holes are communicated with the counter bore, the threaded sleeve bulge is matched with the grooves in the nut post, a spring, a circular plate and a pin post are sequentially arranged in the counter bore from outside to inside, two ends of the spring are respectively fixed on the bottom surface of the counter bore and the circular plate, the circular plate is fixedly connected with the pin post, and the nut and the screw rod cannot be loosened by reversely rotating the threaded sleeve.

Description

Fixing nut

Technical Field

The utility model relates to the field of fasteners, in particular to the field of fixing nuts.

Background

The fixing nut is a nut, and is screwed together with a bolt or a screw rod to play a role in fastening, and an element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and other types according to different materials. The fixing nut is a part for tightly connecting mechanical equipment, and the fixing nut and the bolt with the same specification can be connected together through the threads on the inner side.

The special-shaped fixing nut for fixing is applied to the industries of buildings, building materials, home decoration, industrial and mining, traffic, electric power and the like. The special-shaped fixing nut belongs to hardware products of fasteners, is small in size, different in specification and large in demand of non-standard industries, and is often used as a selection for fastening an object.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a solution for fixing a nut, which addresses the above problems.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows: the utility model provides a fixing nut, fixing nut include integrated into one piece's cylindric fixing nut post and swivel nut, fixing nut post inner circle is equipped with screw thread section and unthreaded section, fixing nut post outer lane is equipped with round ratchet and round recess, the swivel nut is D style of calligraphy shape, be equipped with two coaxial arc through-holes on the plane of swivel nut, the swivel nut inner circle is equipped with circular shape counter bore and swivel nut arch, the arc through-hole communicates on the counter bore, on the swivel nut arch and the fixing nut post the recess cooperation, spring, plectane and round pin post have been placed by outer in proper order in the counter bore, the spring both ends are fixed respectively on counter bore bottom surface and plectane, the plectane with round pin post fixed connection.

The diameter of the unthreaded section is larger than that of the threaded section.

The height of the pin column is higher than the highest tooth height of the ratchet.

The surface where the pin column is matched with the ratchet is an inclined surface.

Compared with the prior art, the utility model has the advantages that:

the fixing nut can only be screwed clockwise and cannot be unscrewed anticlockwise, when the fixing nut is a special-shaped nut and the special-shaped nut needs to be matched with a specific groove in a pressing mode to be fastened further, when the nut and the screw rod are screwed, the special-shaped nut and the specific groove cannot be guaranteed to be aligned, and the nut and the screw rod cannot be loosened by reversely rotating the screw sleeve.

Drawings

FIG. 1 is a perspective view of a retaining nut of the present invention;

FIG. 2 is a front view of the retaining nut;

FIG. 3 is a front cross-sectional view of the retaining nut;

FIG. 4 is a front cross-sectional view of the retaining nut in a different state;

FIG. 5 is a top cross-sectional view taken along line A-A of FIG. 3;

FIG. 6 is a front cross-sectional view of a fixing nut and screw when they are to be tightened;

fig. 7 is a front cross-sectional view of the fixing nut and screw after they are to be tightened.

The names corresponding to the respective reference numerals are: a cylinder 1; a threaded section 11; a non-threaded segment 12; a screw sleeve 2; an arc-shaped plate 201; a ratchet 20; an arc-shaped through hole 21; a thread insert boss 22; a circular plate 23; a counterbore 24; a spring 25; a pin 26; a screw 3; a base 4; a fixing nut groove 41; a to-be-fixed object 5; a chelate 51; the engaging groove 42.

Detailed Description

The following description is provided to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

One embodiment of the present invention is a fixing nut, which includes a cylindrical fixing nut post 1 and a nut barrel 2 formed integrally, the inner ring of the fixed nut column 1 is provided with a threaded section 11 and a non-threaded section 12, the outer ring of the fixed nut column 1 is provided with a circle of ratchets 20 and a circle of grooves, the threaded sleeve 2 is D-shaped, two coaxial arc-shaped through holes 21 are arranged on the plane of the threaded sleeve 2, the inner ring of the screw sleeve 2 is provided with a circular counter bore 24 and a screw sleeve bulge 22, the screw sleeve bulge 22 is used for rotatably fixing the screw sleeve 2, the arc-shaped through hole 21 is communicated with a counter bore 24, the thread insert bulge 22 is matched with the groove on the fixed nut post 1, a spring 25, a circular plate 23 and a pin 26 are sequentially arranged in the counter bore 24 from outside to inside, two ends of the spring 25 are respectively fixed on the bottom surface of the counter bore 24 and the circular plate 23, and the circular plate 23 is fixedly connected with the pin 26.

The diameter of the unthreaded section 12 is greater than the diameter of the threaded section 11, and the unthreaded section 11 is used for guiding the screw to enter, so that the alignment is convenient.

The height of the pin 26 is higher than the highest tooth height of the ratchet 20 to ensure that the circular plate does not contact with the ratchet.

The surfaces of the pin 26 and the ratchet 20 are inclined surfaces and are in full contact.

The specific working process comprises the following steps:

when the fixing nut and the screw rod 3 are fastened in a matched mode, namely the screw sleeve 2 is rotated clockwise, the pin 26 is matched with the ratchet 20 at the moment, the pin 26 in the counter bore 24 is meshed with the ratchet 20, the force of the meshing force of the pin 26 and the ratchet 20 is reacted to be parallel to the circular plate 23, under the action of the spring 25, the pin 26 does not rise, the pin 26 clamps the ratchet 20, the fixing nut is rotated clockwise, and the fixing nut and the screw rod 3 are meshed and screwed.

When the fixing nut and the bolt are unscrewed reversely, namely the screw sleeve 2 is rotated anticlockwise, at the moment, the pin 26 is matched with the ratchet 20, the direction of the force of the ratchet 20 on the pin 26 in reaction is not parallel to and perpendicular to the circular plate 23, so that the pin 26 compresses the spring 25, the pin 26 retracts into the counter bore 24, the screw sleeve 2 is further rotated anticlockwise, and the fixing nut is not rotated; that is, after the fixing nut is tightened, if a wrench is used, the fixing nut cannot be loosened, but the arc-shaped plate 201 is put into the arc-shaped through hole 21, the arc-shaped plate 201 is pressed in and then acts on the circular plate 23, the pin 26 is pressed on the ratchet 20, and the fixing nut can be loosened reversely.

On the basis, it can be known that the fixing nut is a special-shaped nut used in special occasions, when the screw rod 3 is fixedly connected with the object to be fixed 5 and can only move left and right and can not rotate, because the certain shapes of the screw sleeve 2 and the fixing nut groove 41 can not be aligned up by rotating the fastening screw rod 3 and the nut, when the fixing nut can not be pressed into the fixing nut groove 41 on the base 4, the clamping object 51 on the object to be fixed 5 and the clamping groove 42 on the base can not be clamped, and the object to be fixed 5 is lost. However, after the nut and the screw rod 3 are fastened by clockwise rotation, and the arc-shaped plate 201 is not placed in the arc-shaped through hole 21, the screw sleeve 2 can be randomly rotated anticlockwise, so that the screw sleeve 2 and the fixing nut groove 41 are aligned, the arc-shaped plate 201 is placed in the arc-shaped through hole 21, and finally the object 5 to be fixed is fastened by moving the screw rod 3, the fixing nut and the object 5 to be fixed.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fixing nut, fixing nut includes integrated into one piece's cylindric fixing nut post (1) and swivel nut (2), its characterized in that: the utility model discloses a nut post, including fixed nut post (1), swivel nut post (1) inner circle, set nut post (1) outer lane is equipped with round ratchet (20) and round groove, swivel nut (2) are D style of calligraphy shape, be equipped with two coaxial arc through-holes (21) on the plane of swivel nut (2), swivel nut (2) inner circle is equipped with circular shape counter bore (24) and swivel nut arch (22), arc through-hole (21) communicate on counter bore (24), on swivel nut arch (22) and fixed nut post (1) the recess cooperation, spring (25), plectane (23) and round pin post (26) have been placed in proper order by outer to interior in counter bore (24), spring (25) both ends are fixed respectively on counter bore (24) bottom surface and plectane (23), plectane (23) with round pin post (26) fixed connection.

2. A fastening nut as defined in claim 1, wherein: the diameter of the unthreaded section (12) is larger than that of the threaded section (11).

3. A fastening nut as defined in claim 1, wherein: the height of the pin column (26) is higher than the highest tooth height of the ratchet (20).

4. A fastening nut as defined in claim 1, wherein: the surface where the pin column (26) is matched with the ratchet (20) is an inclined surface.