Dodecagonal nylon lock nut
Technical Field
The utility model relates to the technical field of fasteners, in particular to a dodecagonal nylon lock nut.
Background
When the hexagonal nut is screwed up by adopting a larger torque, the situation of thread sliding is easy to occur, the nut after thread sliding is inconvenient to disassemble subsequently, and the nut after the screw is rusted and damaged and is inconvenient to replace. Wrench turned angle is big when hexagon nut screws up, and to some narrow and small places in space, it is inconvenient when people use spanner or other instrument assemblies. On the other hand, the common nut is often loosened and even falls off on some equipment with large vibration, the loosening or falling off of the nut can cause abnormal operation of the equipment, and the falling off nut falls into the operating equipment can cause damage to the equipment and even harm to the life safety of personnel.
The existing standard nut cannot be used in certain specific environments and spaces. Easy to slip, loose and even fall off.
Therefore, the dodecagonal nylon locking nut is provided for solving the problems that a common nut is easy to slip, inconvenient to assemble and disassemble in a narrow space and easy to loosen or even fall off under large vibration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides the dodecagonal nylon lock nut which is not slippery, is convenient to install and disassemble in a narrow space and is not easy to loosen and fall off.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the dodecagonal nylon locking nut comprises a dodecagonal nut body, wherein a threaded hole is formed in the middle of the dodecagonal nut body, a locking portion is arranged at one end of the dodecagonal nut body, a gasket is arranged at the other end of the dodecagonal nut body, a locking groove is formed in the locking portion, a nylon gasket is arranged in the locking groove, and the nylon gasket and the threaded hole are arranged in the same axis and the same inner diameter.
As a preferable scheme of the utility model, a connecting part is further arranged between the dodecagonal nut body and the washer, and an included angle of 15 degrees is formed between the connecting part and the washer.
As a preferable scheme of the present invention, the locking portion is further provided with an annular groove, the annular groove and the locking groove are arranged in an equiaxial manner, a diameter of the annular groove is smaller than a diameter of the locking groove, and the diameter of the annular groove is larger than a diameter of the threaded hole.
In a preferred embodiment of the present invention, the gasket has a gasket groove formed therein coaxially with the gasket.
As a preferable scheme of the utility model, the angle blocks on the dodecagonal nut body are the same in size and are circumferentially arranged, and the number of the angle blocks is 12.
As a preferable aspect of the present invention, the vertex angle of the corner block is 120 °.
In a preferred embodiment of the present invention, the axes of the locking portion of the dodecagonal nut body and the washer are located on the same straight line.
As a preferable mode of the present invention, the dodecagonal nut body locking portion and the washer are integrally formed.
In a preferred embodiment of the present invention, the locking portion and the washer of the dodecagonal nut body are made of steel material.
As a preferable scheme of the utility model, the locking part and the washer are provided with round corners at the side far away from the dodecagonal nut body.
The utility model has the beneficial effects that: compared with the prior art, the method has the following beneficial effects:
1. the nut of the utility model has smaller diameter than the circumscribed circle of the hexagon nut with the same specification, thus saving materials; meanwhile, the nut is mainly used for large-size bolts, each side of the nut has a large width to bear the tightening torque, and sliding threads are not easy to generate;
2. the wrench angle of the nut wrench is smaller than that of a hexagon nut, and the space required by the wrench is smaller when the nut wrench is mounted and dismounted;
3. according to the utility model, the nylon washer is embedded in the nut, and the threads of the bolt can extrude the nylon embedded in the nut, so that the nut has a locking effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of the present invention;
reference numbers in the figures: the nut comprises a dodecagonal nut body 1, a threaded hole 2, a locking portion 3, a gasket 4, a nylon gasket 5, a connecting portion 6, a corner block 11, a locking groove 31, an annular groove 32 and a gasket groove 41.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-2, a dodecagonal nylon lock nut comprises a dodecagonal nut body 1, wherein a threaded hole 2 is formed in the middle of the dodecagonal nut body 1, the threaded hole 2 can be matched with a screw or a bolt with threads, a locking portion 3 is arranged at one end of the dodecagonal nut body 1, a gasket 4 is arranged at the other end of the dodecagonal nut body 1, and the gasket 4 uniformly distributes the pressure of the dodecagonal nut body 1 on a component, so that the possibility of damage to the component is reduced. Locking recess 31 is formed in locking portion 3, has laid nylon packing ring 5 in the locking recess 31, and nylon packing ring 5 and screw hole 2 etc. axle center, etc. internal diameter are laid, and locking portion 3 is laid in the top of dodecagonal nut body 1, has avoided the damage of locking recess 31 that causes when nut spanner pulls, and on the other hand locking portion 3 has also played the effect with the part location.
It is specific, embedding nylon packing ring 5 in locking recess 31, nylon packing ring 5 is the nylon 66 material preferentially, during dodecagonal nut and screwed screw or bolt cooperation, the screw thread is vice in the installation, the nylon of embedding in locking recess 31 can be extruded to the screw thread of bolt, force nylon to take place to warp, the dodecagonal nut finishes the back with the bolt installation, nylon and screw thread are in extrusion contact completely, can produce a very big resilience force to the bolt by extruded nylon, this power makes the bolt be difficult to become flexible, thereby make dodecagonal nut play a locking effect.
Still be equipped with connecting portion 6 between dodecagonal nut body 1, the packing ring 4, connecting portion 6 and packing ring 4 are 15 contained angles, and the establishment of connecting portion 6 has stabilized the connection between dodecagonal nut body 1, the packing ring 4, has guaranteed the holistic intensity of dodecagonal nut, has secondly made things convenient for the processing of dodecagonal nut.
The locking part 3 is also provided with an annular groove 32, the annular groove 32 and the locking groove 31 are arranged in an equiaxial manner, the diameter of the annular groove 32 is smaller than that of the locking groove 31, the diameter of the annular groove 32 is larger than that of the threaded hole 2, and the annular groove 32, the locking groove 31 and the threaded hole 2 are arranged in an equiaxial manner, so that the uniform stress when the nut is matched with a screw or a bolt is ensured, and the service life of the dodecagonal nut is prolonged.
Specifically, when the nylon washer 5 is placed, the diameter of the annular groove 32 is larger than that of the threaded hole 2, so that the nylon washer 5 is conveniently arranged in the locking groove 31; when the dodecagonal nut vibrates, the diameter of the annular groove 32 is smaller than that of the locking groove 31, and the nylon washer 5 is prevented from vibrating out of the locking groove 31.
A gasket groove 41 which is coaxial with the gasket 4 is formed in the gasket 4, and the gasket groove 41 avoids the condition that the surface of a component is uneven and can not be jointed with the gasket 4.
The angle blocks 11 on the dodecagonal nut body 1 are identical in size and are circumferentially arranged, the angles between the adjacent angle blocks 11 are identical, the number of the angle blocks is 12, the angle of the top angle of each angle block 11 is 120 degrees, the bottom angles on two sides of each angle block 11 are identical and symmetrically arranged, and actual machining is facilitated.
The axes of the locking part 3 and the washer 4 of the dodecagonal nut body 1 are positioned on the same straight line, so that the dodecagonal nut is uniformly stressed; the locking part 3 and the washer 4 of the dodecagonal nut body 1 are integrally formed, and actual processing is facilitated.
The locking part 3 and the washer 4 of the dodecagonal nut body 1 are made of steel materials.
One side of the locking part 3 and the gasket 4, which are far away from the dodecagonal nut body 1, are provided with round corners, so that the dodecagonal nut is prevented from acutely injuring users.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the terms of the dodecagonal nut body 1, the threaded hole 2, the locking portion 3, the washer 4, the nylon washer 5, the connecting portion 6, the corner block 11, the locking groove 31, the annular groove 32, the washer groove 41, and the like, but do not exclude the possibility of using other terms; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.