CN213360792U - Nylon self-locking nut - Google Patents

Abstract

The utility model discloses a nylon self-locking nut, which comprises a nut body, wherein the center of the nut body is provided with a threaded through hole, the top end face of the nut body is provided with a nylon washer, the nylon washer comprises a washer body, the washer body is a cylinder, the washer body is provided with a plurality of first radial bulges on the outer peripheral surface close to one end of the nut body, the first radial bulges are uniformly arranged along the circumferential interval, the first radial bulges are provided with connecting holes in the axial direction, the outer side of the nylon washer is sleeved with a cover body, the inner surface of the cover body is attached to the nylon washer, the cover body comprises a second radial bulge which is covered on the first radial bulges, the second radial bulge is provided with counter bores corresponding to the connecting holes, the cover body is fixed on the nut body through screws, the nylon washer can be replaced by detaching the cover body, convenient maintenance, nylon packing ring is fixed stable, can not rotate.

Description

Nylon self-locking nut

Technical Field

The utility model relates to a fastener technical field specifically is a nylon self-locking nut.

Background

The nylon self-locking nut is a novel high-vibration-resistance anti-loosening fastening part, can be applied to various machines and electrical products with the temperature of 50 ℃ below zero to 100 ℃, and has greatly increased demand for the nylon self-locking nut in the application fields of aviation, tanks, mining machinery, automobile transportation machinery, agricultural machinery, textile machinery, electrical products and various machines.

Traditional nylon lock nut improves the fastening effect through the nylon packing ring usually, but traditional nylon lock nut is relatively poor to the fixed effect of nylon packing ring, especially great specification's nylon lock nut, and the phenomenon that the nylon packing ring appears becoming flexible and drops easily influences subsequent installation, and the nylon packing ring damages easily, can only change whole nut when needing to be changed, and the installation is inconvenient with maintaining, and the practicality is relatively poor.

Disclosure of Invention

In order to solve the technical problem, the utility model relates to a nylon lock nut, this nylon lock nut simple structure, reliable makes simple to operate and fixed effect better, has effectively solved above-mentioned technical problem, is fit for using widely, in order to realize above-mentioned purpose, the utility model discloses a following technical scheme realizes:

a nylon self-locking nut comprises a nut body, wherein a thread through hole is formed in the center of the nut body, a nylon washer is arranged on the top end face of the nut body and comprises a washer body, the washer body is a cylinder, the outer diameter of the washer body is larger than the diameter of the thread through hole, a through hole is formed in the center of the washer body, the diameter of the through hole is smaller than that of the thread through hole, the through hole and the thread through hole of the nut body are coaxially arranged, a plurality of first radial protrusions are arranged on the outer peripheral face close to one end of the nut body and uniformly arranged along the circumferential direction, connecting holes are formed in the axial direction of the first radial protrusions, the first radial protrusions and the washer body are integrally formed, the bottom faces of the first radial protrusions are in contact with the top face of the nut body, and a cover body is sleeved outside the nylon washer, the internal surface and the laminating of nylon packing ring of the cover body, the cover body is established the radial arch of second on the first radial arch including the cover, be equipped with the counter bore that corresponds with the connecting hole on the radial arch of second, the cover body passes through the fix with screw on the nut body, the blind hole threaded connection of counter bore, connecting hole and nut body is passed to the screw.

On the basis of the above scheme and as a preferable scheme of the scheme: the first radial bulges are four and are uniformly arranged along the peripheral surface at intervals.

On the basis of the above scheme and as a preferable scheme of the scheme: and a plurality of anti-skidding salient points are arranged on the inner surface of the through hole of the gasket body.

On the basis of the above scheme and as a preferable scheme of the scheme: the anti-skidding nut is characterized in that anti-skidding teeth are arranged on the bottom end face of the nut body, and anti-skidding tooth patterns are distributed in an annular array mode around the center of a threaded through hole of the nut body.

On the basis of the above scheme and as a preferable scheme of the scheme: each corner of nut body all is the radius angle setting.

Compared with the prior art, the utility model outstanding and profitable technological effect is: the cover body passes through screw fixed mounting on the nut body, and the detachable mode is convenient for maintain, the installation, and the nylon packing ring that the removable quilt cover body compressed tightly is equipped with a plurality of first radial archs to the nylon packing ring, thereby the nylon packing ring is fixed to the radial protruding chucking of the second of the first radial arch by the cover body, and the nylon packing ring is fixed a position and is fixed and just no longer produce easily and beat the phenomenon of changeing, and fixed mode is more stable, and difficult the coming off is not hard up.

Drawings

FIG. 1 is a front cross-sectional view of a nylon self-locking nut;

FIG. 2 is a schematic view of a nylon gasket;

fig. 3 is a schematic axial view of a nylon self-locking nut.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, however, the specific embodiments and embodiments described below are only for illustrative purposes and are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the directions or positional relationships shown in fig. 1, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

As shown in fig. 1-3, the utility model aims to provide a nylon self-locking nut, which is suitable for a large-specification hexagonal nut with specification exceeding M42, and comprises a nut body 1, the center of the nut body 1 is provided with a threaded through hole 11, the top end surface of the nut body 1 is provided with a nylon washer 2, the nylon washer 2 comprises a washer body 21, the washer body 21 is a cylinder, the outer diameter of the washer body 21 is larger than the diameter of the threaded through hole 11, the central position of the gasket body 21 is provided with a through hole 211, the diameter of the through hole 211 is smaller than that of the thread through hole 11, through-hole 211 and the coaxial setting of the screw thread through-hole 11 of nut body 1, the bolt can extrude nylon packing ring 2 after passing screw thread through-hole 11 in the installation, and extruded nylon packing ring 2 produces a very big resilience force to the bolt, has increased the friction, and this power makes the bolt be difficult to not hard up.

Considering that the nylon washer 2 needs to be stably installed, the nylon washer 2 can not rotate, the washer body 21 is provided with a plurality of first radial protrusions 22 and a plurality of first radial protrusions 22 on the outer peripheral surface close to one end of the nut body 1, the first radial protrusions 22 are uniformly arranged along the circumferential interval, the first radial protrusions 22 are provided with connecting holes 221 in the axial direction, the first radial protrusions 22 and the washer body 21 are integrally formed, the bottom surface of each first radial protrusion 22 is in contact with the top surface of the nut body 1, the outer side of the nylon washer 2 is sleeved with the cover body 3, the inner surface of the cover body 3 is attached to the nylon washer 2, the main body of the cover body is cylindrical, the cover body 3 is axially matched with the nut body 1 to clamp the nylon washer 2, the axial movement of the nylon washer 2 is limited, the movement of the nylon washer 2 is limited by the shell in the radial direction, the cover body 3 further comprises a second radial protrusion 31 covered, the cover body 3 has restricted the rotation of nylon packing ring 2 through the block of the radial arch 31 of second and first radial arch 22, be equipped with the counter bore 32 that corresponds with connecting hole 221 on the radial arch 31 of second, the screw (not shown in the figure) has been inserted to counter bore 32, cover body 3 passes through the fix with screw on nut body 1, the screw passes counter bore 32, connecting hole 221 and the 12 threaded connection of blind hole of nut body 1, fix cover body 3 detachable on nut body 1, easy to assemble and maintenance, fixed mode is more stable, difficult coming off is not hard up, it is worth noting to connect fixedly through first radial arch 22 and avoided the screw to cause the influence to packing ring body 21, influence packing ring body 21 is to the fastening effect of bolt.

Considering that when the cover body 3 is detached, the nylon washer 2 is clamped in the accommodating cavity of the cover body 3 and is not easy to take out, the diameter of the upper end opening of the cover body 3 is larger than that of the through hole 211 of the washer body, and the upper end of the cover body can contact the washer body 1, so that the nylon washer 2 can be knocked out.

Further, first radial arch 22 has four, four first radial arch 22 is along the even setting of outer peripheral face interval, and four first radial arch 22 set up fixed effect better, and the quantity is too much then the processing degree of difficulty is too big, and influences overall structure's stability.

Furthermore, a plurality of anti-slip salient points 23 are arranged on the inner surface of the through hole 211 of the gasket body 21, so that the inner surface of the gasket body 21 is not easy to slip.

Furthermore, the bottom end face of the nut body 1 is provided with anti-slip teeth 13, the anti-slip teeth 13 are distributed in an annular array around the center of the threaded through hole 11 of the nut body 1, so that the slip phenomenon between the nut body 1 and the connected part can be avoided, and the connection between the nylon self-locking nut and the connected part is firmer.

Furthermore, each corner of nut body 1 all is the radius angle setting, avoids scraping other parts of flower or scratch operating personnel.

At first with the nylon packing ring 2 embedding cover body 3, can fix a position easily through the cooperation of first radial arch 22 and the radial arch 31 of second, will inlay the cover body 3 that nylon packing ring 2 and arrange in on the up end of income nut body 1, fix the cover body 3 detachable on nut body 1 through the screw, easy to assemble and maintenance, fixed mode is more stable, be difficult for droing not hard up, only need behind the back of the screw if need be changed nylon packing ring 2, strike packing ring body 1 from the upper end, thereby knock out nylon packing ring 2 and change.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made by the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (5)

1. The utility model provides a nylon auto-lock nut which characterized in that: the nut comprises a nut body, wherein a thread through hole is formed in the center of the nut body, a nylon washer is arranged on the top end face of the nut body and comprises a washer body, the washer body is a cylinder, the outer diameter of the washer body is larger than the diameter of the thread through hole, a through hole is formed in the center of the washer body, the diameter of the through hole is smaller than that of the thread through hole, the through hole and the thread through hole of the nut body are coaxially arranged, a plurality of first radial protrusions are arranged on the outer peripheral face close to one end of the nut body and uniformly arranged along the circumferential direction at intervals, connecting holes are formed in the axial direction of the first radial protrusions, the first radial protrusions and the washer body are integrally formed, the bottom faces of the first radial protrusions are in contact with the top face of the nut body, and a cover body is sleeved outside the nylon washer, the internal surface and the laminating of nylon packing ring of the cover body, the cover body is established the radial arch of second on the first radial arch including the cover, be equipped with the counter bore that corresponds with the connecting hole on the radial arch of second, the cover body passes through the fix with screw on the nut body, the blind hole threaded connection of counter bore, connecting hole and nut body is passed to the screw.

2. The nylon self-locking nut of claim 1, wherein: the first radial bulges are four and are uniformly arranged along the peripheral surface at intervals.

3. The nylon self-locking nut of claim 1, wherein: and a plurality of anti-skidding salient points are arranged on the inner surface of the through hole of the gasket body.

4. The nylon self-locking nut of claim 1, wherein: the anti-skidding nut is characterized in that anti-skidding teeth are arranged on the bottom end face of the nut body, and anti-skidding tooth patterns are distributed in an annular array mode around the center of a threaded through hole of the nut body.

5. The nylon self-locking nut of claim 1, wherein: each corner of nut body all is the radius angle setting.

Images