CN111682356A

CN111682356A - But rotary-closing separation moment of torsion size adjustable structure

Info

Publication number: CN111682356A
Application number: CN202010556778.6A
Authority: CN
Inventors: 张广宇; 郭建设; 简守聪
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-09-18

Abstract

The invention discloses a structure capable of adjusting the magnitude of a screwing-in separation torque, which comprises a plug of a connector, wherein the plug comprises a spline shell, a locking washer and a connecting nut, and the connecting nut is sleeved outside the spline shell; a disc is coaxially and fixedly arranged in the middle of the spline shell, and the size of the disc is matched with the size of the inner diameter of the corresponding position of the connecting nut; the locking washer is sleeved on the spline shell, the left side face of the locking washer is matched with the right side face of the disc, a locking washer key is further arranged on the circumferential outer wall of the locking washer, the locking washer key is in key connection with a key groove in the connecting nut, and the right side of the locking washer abuts against the tail of the right end of the connecting nut through the connecting piece; one surface of the matching surface of the disc and the locking washer is provided with a groove, and the groove is formed by combining two surfaces with different curvatures; and cambered surface bulges which are in one-to-one correspondence with the grooves are arranged on the other surface. The technical scheme disclosed by the invention can achieve the purposes of easily screwing the connector and difficultly separating the connector.

Description

But rotary-closing separation moment of torsion size adjustable structure

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a structure capable of adjusting screwing and unscrewing torque.

Background

The plug self-locking connector is a novel structure, and through the cooperation of the corrugated spring, the locking washer and the spline shell, when the spline shell and the connecting nut tend to rotate relatively, the elasticity of the corrugated spring needs to be overcome at first, so that the connecting nut and the spline shell are limited in relative rotation. However, in practical use, people often want the whole structure to have the characteristics of easy screwing and relatively difficult separation.

Disclosure of Invention

The invention provides a plug self-locking connector, which aims to solve the technical problems in the prior art and achieve the aims of easily screwing and separating the connector.

Specific embodiments are given below:

the utility model provides a rotary joint separation moment of torsion size adjustable structure which characterized in that: the plug comprises a connector, the plug comprises a spline shell, a locking washer and a connecting nut, the spline shell is in a hollow shaft shape, the connecting nut is in a cylindrical shape, a step hole is formed in the connecting nut, the connecting nut is sleeved outside the spline shell, and a key groove is further formed in the right half part of the step hole of the connecting nut;

a disc is coaxially and fixedly arranged in the middle of the spline shell, and the size of the disc is matched with the size of the inner diameter of the corresponding position of the connecting nut;

the locking washer is sleeved on the spline shell, the left side face of the locking washer is matched with the right side face of the disc, a locking washer key corresponding to the key groove of the connecting nut is further arranged on the circumferential outer wall of the locking washer, the locking washer key is in key connection with the key groove in the connecting nut, and the right side of the locking washer abuts against the tail part of the right end of the connecting nut through the connecting piece;

on the matching surface of the disc and the locking washer, a groove is formed in one surface along the circumferential edge of the contact surface, the groove is formed by combining two surfaces with different curvatures, the combination point of the two curved surfaces is a groove inflection point B, and the combination point of the groove surface with larger curvature change and the contact surface plane is a groove inflection point A; and cambered surface bulges which are in one-to-one correspondence with the grooves are arranged on the other surface.

Preferably, the coupling nut is provided with three keyways and correspondingly the lock washer is provided with three lock washer keys.

Preferably, the connecting piece on the right side of the locking washer is a corrugated spring.

Preferably, the recess is provided on the disc and the projection is provided on the lock washer

Preferably, the groove is provided on the locking washer and the protrusion is provided on the disc.

Preferably, the arc surface of the protrusion is an arc surface or an elliptical arc surface or one of two asymmetric arc surfaces.

The face of two kinds of curvatures of recess closes according to coupling nut soon, the separation direction sets up in a complete set, in the direction of closing coupling nut soon, the arch is when the screw in recess, at first can pass through recess flex point A, slide in the recess along the great face of curvature, when the arch back out of the recess, can pass through recess flex point B, along the less face roll-off recess of curvature, when closing soon, required power is less, and when closing soon after target in place, the arch is located the recess, when carrying out the rotation separation, the arch will directly be facing the great recess face of curvature earlier, at this moment, required moment is great, during the rotating, it is also great to the power of ripple spring, it is comparatively light just so to have reached and closed the connector soon, the comparatively difficult purpose of separation connector.

Compared with the prior art, the invention has the beneficial effects that: the purpose that required torsion is different when having realized connecting nut and closing soon and separating, when the headstock is connected, the rotation torque requirement is less, convenience of customers 'operation, when needing to connect the rotatory separation of nut, required moment of torsion is great, can effectively prevent connecting device's connection under environment such as vibrations and take place separation, inefficacy.

Drawings

FIG. 1: a schematic of a connector.

FIG. 2: and the locking washer is matched with the spline housing.

FIG. 3: and the right-view schematic diagram of the matching of the locking washer and the spline shell.

FIG. 4: the enlarged schematic at a in fig. 3.

FIG. 5: spline housing schematic.

FIG. 6: spline casing right side schematic diagram.

FIG. 7: fig. 6 is an enlarged schematic view at B.

FIG. 8: a lock washer is schematically shown.

FIG. 9: the lock washer is shown in a schematic view from the right.

FIG. 10: the lock washer is shown schematically in front view.

In the figure: 1. the spline housing, 1.1 disc, 1.1.1 groove inflection point A, 1.1.2 groove inflection point B, 2 lock washer, 2.1 bulge, 2.2 lock washer key, 3 connecting nut.

Detailed Description

The present invention is described herein with reference to the accompanying drawings, and it is to be understood that the present invention is not limited to the illustrations, but is intended to cover various changes and modifications within the spirit and scope of the invention.

Example 1

As shown in fig. 1-10.

A structure capable of adjusting the magnitude of a screwing-in separation torque comprises a plug of a connector, wherein the plug comprises a spline shell 1, a locking washer 2 and a connecting nut 3, the spline shell 1 is in a hollow shaft shape, the connecting nut 3 is in a cylindrical shape, a step hole is formed in the connecting nut 3, the connecting nut 3 is sleeved outside the spline shell 1, and three key grooves are further formed in the right half part of the step hole of the connecting nut 3;

a disc 1.1 is coaxially and fixedly arranged in the middle of the spline shell 1, and the size of the disc 1.1 is matched with the inner diameter size of the corresponding position of the connecting nut 3;

the locking washer 2 is sleeved on the spline shell 1, the left side face of the locking washer 2 is matched with the right side face of the disc 1, three locking washer keys 2.2 corresponding to three key grooves of the connecting nut 3 are further arranged on the circumferential outer wall of the locking washer 2, the locking washer keys 2.2 are in key connection with the key grooves in the connecting nut 3, and the right side of the locking washer 2 abuts against the tail part of the right end of the connecting nut 3 through a corrugated spring;

on the matching surface of the disc 1.1 and the locking washer 2, a groove is formed in one surface along the circumferential edge of the contact surface, the groove is formed by combining two surfaces with different curvatures, the combination point of the two curved surfaces is a groove inflection point B1.1.2, and the combination point of the groove surface with larger curvature change and the contact surface plane is a groove inflection point A1.1.1; and arc surface bulges 2.1 which are in one-to-one correspondence with the grooves are arranged on the other surface.

This embodiment demonstrates that the grooves are provided on the disc 1.1 and the protrusions 2.1 are provided on the lock washer 2.2.

Example 2

The difference between this embodiment and embodiment 1 is that the groove is formed on the lock washer 2.2, the protrusion 2.1 is formed on the disc 1.1, and the arc surface of the protrusion 2.1 is an elliptical arc surface.

However, it is easy to know that it still can play the role of screwing the connector easily and separating the connector difficultly.

Claims

1. The utility model provides a rotary joint separation moment of torsion size adjustable structure which characterized in that: the plug comprises a connector, the plug comprises a spline shell (1), a locking washer (2) and a connecting nut (3), the spline shell (1) is in a hollow shaft shape, the connecting nut (3) is in a cylindrical shape, a step hole is formed in the connecting nut (3), the connecting nut (3) is sleeved outside the spline shell (1), and a key groove is further formed in the right half part of the step hole of the connecting nut (3);

a disc (1.1) which is coaxially and fixedly arranged with the spline shell (1) is arranged in the middle of the spline shell (1), and the size of the disc (1.1) is matched with the inner diameter size of the corresponding position of the connecting nut (3);

the locking washer (2) is sleeved on the spline shell (1), the left side face of the locking washer (2) is matched with the right side face of the disc (1), a locking washer key (2.2) corresponding to a key groove of the connecting nut (3) is further arranged on the circumferential outer wall of the locking washer (2), the locking washer key (2.2) is in key connection with the key groove in the connecting nut (3), and the right side of the locking washer (2) abuts against the tail part of the right end of the connecting nut (3) through a connecting piece;

on the matching surface of the disc (1.1) and the locking washer (2), a groove is formed in one surface along the circumferential edge of the contact surface, the groove is formed by combining two surfaces with different curvatures, the combination point of the two curved surfaces is a groove inflection point B (1.1.2), and the combination point of the groove surface with larger curvature change and the plane of the contact surface is a groove inflection point A (1.1.1); and cambered surface bulges (2.1) which are in one-to-one correspondence with the grooves are arranged on the other surface.

2. The adjustable structure of screwing-on and unscrewing torque as claimed in claim 1, wherein: the connecting nut (3) is provided with three keyways and correspondingly the lock washer (2) is provided with three lock washer keys (2.2).

3. A selective separation torque magnitude adjustable structure according to claim 2, wherein: the connecting piece on the right side of the locking washer (2) is a corrugated spring.

4. A structure for adjusting the amount of torque applied to and removed from a structure according to claim 3, wherein: the groove is arranged on the disc (1.1), and the bulge (2.1) is arranged on the lock washer (2.2).

5. A structure for adjusting the amount of torque applied to and removed from a structure according to claim 3, wherein: the groove is arranged on the locking washer (2.2), and the bulge (2.1) is arranged on the disc (1.1).

6. A selective separation torque magnitude adjustable structure according to claim 4 or 5, wherein: the cambered surface of the bulge (2.1) is an arc surface or an elliptic cambered surface or one of two asymmetric cambered surfaces.