CN111541075A

CN111541075A - Connector capable of preventing corrugated spring from being worn

Info

Publication number: CN111541075A
Application number: CN202010431627.8A
Authority: CN
Inventors: 张广宇; 赵光甫; 金同顺
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-08-14
Anticipated expiration: 2040-05-20
Also published as: CN111541075B

Abstract

The invention relates to a connector for preventing a corrugated spring from being worn, which comprises an outer shell and a connecting nut rotationally assembled outside the outer shell, wherein a lock washer, a corrugated spring and a three-key check ring are sequentially assembled between the outer shell and the connecting nut from front to back, and the lock washer and the three-key check ring which are in rotation stop fit with the connecting nut drive the corrugated spring clamped between the lock washer and the three-key check ring to synchronously rotate along with the connecting nut so as to avoid the wear of two clamping surfaces of the corrugated spring due to relative rotation. The corrugated spring is clamped between the locking washer and the triple-key retainer ring, and the tail part of the corrugated spring is clamped by the clamp spring, so that the axial saving space of the locking structure is limited. The connecting nut can drive the three-key check ring and the locking washer to rotate simultaneously, the protrusion of the three-key check ring is separated from the groove of the outer shell at the moment, the corrugated spring is compressed to provide locking force, but the corrugated spring and the upper and lower contact pieces are relatively static and rotate together, friction-free compression is realized, and the service life and the reliability of the corrugated spring are prolonged.

Description

Connector capable of preventing corrugated spring from being worn

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a connector capable of preventing a corrugated spring from being abraded.

Background

When the connecting nut contains the ripple spring, the nut and the outer shell can rotate relatively under normal conditions, and the ripple spring is compressed in the process, and meanwhile, the ripple spring is also subjected to the rotating friction force of the upper and lower matching parts, and the ripple spring is thin and is in point contact with the upper and lower surfaces, so that the ripple spring is damaged greatly if friction occurs.

Disclosure of Invention

In order to solve the problems, the invention provides a connector with a novel structure for preventing a corrugated spring from being abraded, which is clamped by two parts which are circumferentially locked with a connecting nut and drive the corrugated spring to synchronously rotate, so that when the nut rotates, the corrugated spring and an upper contact part and a lower contact part are relatively static, and at the moment, the corrugated spring is only axially compressed and does not have relative friction with the contact parts, thereby avoiding damage caused by friction.

The purpose of the invention and the technical problem to be solved are also realized by adopting the following technical scheme. The connector comprises an outer shell and a connecting nut which is rotatably assembled outside the outer shell, wherein a locking washer, a corrugated spring and a three-key check ring are sequentially assembled between the outer shell and the connecting nut from front to back, and the locking washer and the three-key check ring which are in rotation stop fit with the connecting nut drive the corrugated spring clamped between the locking washer and the three-key check ring to synchronously rotate along with the connecting nut so as to avoid the abrasion of two clamping surfaces of the corrugated spring due to relative rotation.

The object of the present invention and the solution to the technical problems can be further achieved by the following technical measures.

In the connector for preventing the abrasion of the corrugated spring, the front end surface of the locking washer and the rear end surface of the annular boss of the outer shell are subjected to concave-convex locking and limiting; the rear end face of the three-key check ring is blocked and limited by a limiting piece arranged on the connecting nut or the outer shell.

In the connector for preventing abrasion of the ripple spring, the front end face of the lock washer is provided with a protrusion for locking, and the rear end face of the annular boss of the outer shell is provided with a groove matched with the protrusion.

In the connector for preventing the abrasion of the ripple spring, one side of the groove on the rear end face of the annular boss is a locking limiting part with a larger gradient for preventing the locking washer from protruding over, and the other side of the groove is an unlocking guide part with a smaller gradient for guiding the locking washer to protrude away from the unlocking.

In the connector for preventing the abrasion of the ripple spring, the front end surface of the annular boss of the shell is in stop fit with the inner step surface of the connecting nut through the insulating gasket.

In the connector for preventing the abrasion of the corrugated spring, the front end face of the triple-key retainer ring is pressed on the step surface of the outer shell by the limiting piece.

In the connector for preventing the abrasion of the corrugated spring, the limiting piece is a snap spring assembled in the connecting nut, and the snap ring which is sleeved on the outer shell and axially limited with the outer shell extends into the inner ring of the snap spring to prevent the snap spring from deforming inwards to separate from the connecting nut.

In the connector for preventing the wear of the corrugated spring, the end face of the front end of the retainer ring is tightly pressed on the rear end face of the triple-key retainer ring, and the outer peripheral surface of the rear end is in clearance fit with the inner peripheral surface of the connecting nut.

In the connector for preventing the abrasion of the ripple spring, the connecting nut is provided with a slot for inserting the clamping ring removing tool.

In the connector for preventing the corrugated spring from being worn, the clamping ring realizes axial limit through the matching of the clamping jaws on the inner ring of the clamping ring and the annular groove on the outer shell.

Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the invention can achieve considerable technical progress and practicability, has wide industrial utilization value and at least has the following advantages:

the corrugated spring is clamped between the locking washer and the triple-key retainer ring, and the tail part of the corrugated spring is clamped by the clamp spring, so that the axial saving space of the locking structure is limited. When connecting nut takes place to rotate, through the keyway cooperation, connecting nut can drive three key retaining rings and lock washer and rotate simultaneously, and the protruding recess that breaks away from the shell body of three key retaining ring this moment, and corrugated spring takes place the compression this moment, provides the locking force, but it can take place to rotate simultaneously with lock washer and three key retaining ring, and corrugated spring and upper and lower two contact relatively static rotate jointly, realize not having the friction compression, increase corrugated spring life-span and reliability.

Drawings

FIG. 1 is a schematic view of a connector for preventing abrasion of a bellows spring according to the present invention;

FIG. 2 is a schematic view of the connector assembly for preventing wear of the bellows spring according to the present invention;

FIG. 3 is a schematic view of the retainer ring structure of the connector of the present invention for preventing wear of the bellows spring;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of a coupling nut of a connector for preventing abrasion of a wave spring according to the present invention;

fig. 6 is a cross-sectional view of fig. 5.

[ description of main element symbols ]

1: outer casing

2: connecting nut

3: clamp spring

4: clamping ring

5: locking washer

6: corrugated spring

7: three-key retainer ring

8: slotting

9: boss

10: insulating gasket

11: ring groove

12: jack catch

13: projection

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the connector for preventing the abrasion of the ripple spring according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-6, which are schematic structural diagrams of the connector for preventing wear of the corrugated spring according to the present invention, the connector includes an outer housing 1 and a coupling nut 2 rotatably assembled outside the outer housing, a lock washer 5, a corrugated spring 6 and a triple-key retainer ring 7 are sequentially assembled between the outer housing 1 and the coupling nut 2 from front to back, wherein convex keys that are matched with key slots in the coupling nut to realize circumferential rotation prevention with the coupling nut are respectively disposed on the outer peripheral surfaces of the lock washer 5 and the triple-key retainer ring 7, the corrugated spring 8 is clamped between the lock retainer ring and the triple-key retainer ring 7, and rotates together with the washer and the retainer ring when the coupling nut rotates, such that there is no relative rotation between the front and back end surfaces of the corrugated spring and the retainer ring contacted therewith, thereby avoiding wear of the front and back end surfaces.

In the embodiment of the invention, the outer periphery of the outer shell 1 is provided with an annular boss, the front end surface of the annular boss is in stop fit with the inner step surface of the connecting nut, the rear end surface of the annular boss is in stop fit with the front end surface of the lock washer 5, the rear end surface of the annular boss is provided with a groove which is in fit locking with the bulge 13 on the front end surface of the lock washer 5, one side of the groove is a locking limiting part with a larger gradient and used for preventing the bulge 13 of the lock washer from passing, and the other side of the groove is an unlocking guide part with a smaller. In the embodiment of the invention, an insulating gasket is arranged between the annular boss on the periphery of the shell 1 and the inner step surface of the connecting nut so as to prevent the abrasion of the contact surface when the connecting nut and the shell rotate relatively.

In the embodiment of the invention, the outer peripheral surfaces of the locking washer and the three-key retainer ring are respectively provided with three convex keys, the tail part of the connecting nut is provided with three matched key grooves, and the locking washer and the three-key retainer ring are assembled according to the guidance of the key grooves.

In other embodiments of the invention, one or more convex keys are arranged on the outer peripheral surfaces of the locking washer and the triple key retainer ring. When the nut takes place to rotate, can drive three key retaining ring and lock washer through keyway cooperation nut and rotate simultaneously, lock washer arch 13 breaks away from the recess of shell body this moment, and corrugated spring takes place the compression this moment, provides the locking force, but its and lock washer can take place to rotate simultaneously with three key retaining ring, can not produce the friction.

The rear end face of the three-key check ring is blocked and limited by a limiting piece arranged on the connecting nut or the outer shell. In the embodiment of the invention, the limiting piece is a clamp spring 3 assembled in the connecting nut, and the clamp spring 3 is stopped at the rear end of a triple-key retainer ring 7, so that the lower part of the front end of the triple-key retainer ring 7 is in stop fit with a step surface on the outer shell 1, and the axial sliding space of the triple-key retainer ring is limited.

The front end of a clamping ring 4 which is sleeved on the outer shell 1 and axially limited with the outer shell 1 extends into the inner ring of the clamp spring 3 to prevent the clamping ring from shrinking and separating, and the front end face is blocked on the rear end face of a triple-key retaining ring 7 to realize the axial sliding limiting of the triple-key retaining ring. In the embodiment of the invention, the inner ring of the clamping ring 4 is provided with claws 12 which are matched with the annular grooves 11 on the outer shell for positioning. The shape of the claw includes but is not limited to a rectangle and a sheet type extending structure satisfying a cantilever beam structure. When the clamping ring is assembled, the clamping ring firstly passes through the thread part at the tail part of the outer shell, the clamping jaws extending out of the inner ring of the clamping ring are stressed and compressed, the clamping ring is sleeved in the threads and continuously moves until the clamping jaws reach the outer ring groove of the outer shell, the clamping jaws rebound to clamp the bottom surface of the ring groove, and at the moment, the clamping ring cannot fall off.

The outer peripheral surface of the rear end of the clamping ring 4 is in clearance fit with the inner peripheral surface of the connecting nut. Because the clamping ring is assembled in place, the tail part of the clamping ring is flush with the tail part of the connecting cap, and only one side surface of the whole part is exposed, when the clamping ring needs to be reworked and repaired, the clamping ring is damaged and is inconvenient to take out. The inner side of the tail part of the connecting nut 1 is also provided with a slot 8, the slot 8 and the peripheral surface of the clamping ring enclose a space for inserting a clamping ring taking and disassembling tool, a sharp tool or a screwdriver and the like can be used for extending into the slot at the tail part of the connecting nut to damage the clamping ring, then the clamping ring is taken out, and further the product is reworked or repaired.

In the embodiment of the present invention, the number of the slots is three, but not limited to, the slots are evenly distributed along the circumference of the coupling nut. After the clamping ring is assembled in place, gaps are reserved at the three grooves of the clamping ring, and the grooves do not influence all functions of the clamping ring. The slot is rectangular in shape or other shape that can form a gap with the collar for insertion of a removal tool.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a connector that prevents ripple spring wearing and tearing, includes shell body and the connecting nut of rotation assembly outside the shell body which characterized in that: and a locking washer, a corrugated spring and a three-key check ring are sequentially assembled between the outer shell and the connecting nut from front to back, wherein the locking washer and the three-key check ring which are matched with the connecting nut in a rotation stopping manner drive the corrugated spring clamped between the locking washer and the three-key check ring to synchronously rotate along with the connecting nut, so that the two clamping surfaces of the corrugated spring are prevented from being worn due to relative rotation.

2. The connector for preventing wear of a ripple spring according to claim 1, wherein: the front end surface of the locking washer and the rear end surface of the annular boss of the outer shell are locked and limited in a concave-convex mode; the rear end face of the three-key check ring is blocked and limited by a limiting piece arranged on the connecting nut or the outer shell.

3. The connector for preventing wear of a ripple spring according to claim 2, wherein: the front end face of the locking washer is provided with a bulge for locking, and the rear end face of the annular boss of the outer shell is provided with a groove matched with the bulge.

4. The connector for preventing wear of a ripple spring according to claim 3, wherein: one side of the groove on the rear end face of the annular boss is a locking limiting part with a larger gradient for preventing the locking washer from protruding and passing over, and the other side of the groove is an unlocking guide part with a smaller gradient for guiding the locking washer to protrude and leave the unlocking.

5. The connector for preventing wear of a ripple spring according to claim 2, wherein: the front end face of the annular boss of the shell is in stop fit with the inner step face of the connecting nut through an insulating gasket.

6. The connector for preventing wear of a ripple spring according to claim 2, wherein: the front end face of the three-key retainer ring is pressed on the step face of the outer shell by the limiting piece.

7. The connector for preventing wear of a ripple spring according to claim 6, wherein: the limiting part is a clamp spring assembled in the connecting nut, and the front end of the clamping ring sleeved on the outer shell and axially limited by the outer shell extends into the inner ring of the clamp spring to prevent the clamp spring from deforming inwards to separate from the connecting nut.

8. The connector for preventing wear of a ripple spring according to claim 7, wherein: the end face of the front end of the clamping ring is tightly pressed on the rear end face of the triple-key check ring, and the outer peripheral face of the rear end of the clamping ring is in clearance fit with the inner peripheral face of the connecting nut.

9. The connector for preventing wear of a ripple spring according to claim 8, wherein: wherein the connecting nut is internally provided with a slot for inserting the clamping ring taking-off tool.

10. The connector for preventing wear of a ripple spring according to claim 7, wherein: wherein the clamping ring realizes axial limit through the matching of the clamping jaws of the inner ring thereof and the ring groove on the outer shell.