CN112864688A

CN112864688A - Connector capable of preventing snap ring from falling off and assembling method thereof

Info

Publication number: CN112864688A
Application number: CN202011634659.4A
Authority: CN
Inventors: 胡祥
Original assignee: JIANGSU ZHENGKAI ELECTRONIC TECHNOLOGY CO LTD
Current assignee: JIANGSU ZHENGKAI ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-28

Abstract

The invention discloses a connector for preventing a snap ring from falling off and an assembling method thereof. According to the invention, when the screw sleeve is in a stressed state, the arc-shaped groove is attached to the surface of the circular-section snap ring, the stress point of the arc-shaped groove and the circular-section snap ring is at a 45-degree position, and the horizontal force is converted into the vertical force according to the 45-degree decomposition of the stress, so that the larger the locking stress of the circular-section snap ring is, the tighter the snap ring is clamped by the shell and the screw sleeve, the risk of snap ring falling off, the insufficient strength of the screw sleeve in the riveting and locking process and the risk of coating cracking are avoided from the mechanical stress principle, and after the connector is connected, the rubber plate is tightly attached to the shell to lock the screw sleeve by rotating the knob, so that the unstable connection caused by the rotation of the.

Description

Connector capable of preventing snap ring from falling off and assembling method thereof

Technical Field

The invention relates to a connector for preventing a snap ring from falling off and an assembling method thereof.

Background

The connector is a connecting piece for line connection, and threaded connection is the main connection mode of the connector, and its characteristics reflect in convenient operation is quick, satisfy repetitious usage demand, and threaded connection mainly leans on female shell of external screw thread and the realization of internal screw thread public first swivel nut intermeshing, and the restriction of connector public first swivel nut in the position of public first shell generally adopts two kinds of technologies realization of rectangle snap ring and rivet mouth hasp.

The snap ring notch of the rectangular snap ring process is large, local abrasion is easily caused after long-term use, the rotation is not smooth, when the snap ring is used, the coaxiality of the round axis of the snap ring and the round axes of the shell and the threaded sleeve is deviated greatly, the risk that the snap ring and the threaded sleeve fall off can be generated, the bending part of the riveting opening locking process has plastic deformation of materials, and the risk of fracture and coating cracking easily occurs.

Disclosure of Invention

The invention aims to provide a connector for preventing a snap ring from falling off and an assembling method thereof, and aims to solve the problems that a snap ring notch in a rectangular snap ring process provided in the background art is large, local abrasion is easily caused after long-term use, rotation is not smooth, when the coaxiality of a round axis of the snap ring and the round axes of a shell and a threaded sleeve deviates greatly in the use process of the snap ring, the risk of falling off of the snap ring and the threaded sleeve is possibly generated, and the bending part of a riveting locking process has plastic deformation of materials, so that the risk of fracture and coating cracking is easily caused.

In order to achieve the purpose, the invention provides the following technical scheme: a connector for preventing a clamping ring from falling off comprises a shell and a threaded sleeve, wherein the threaded sleeve is sleeved on the left side of the shell, an annular clamping groove is formed in the surface of the left side of the shell, the clamping ring with a circular cross section is arranged in the annular clamping groove, an arc-shaped groove is formed in the inner wall of the right side of the threaded sleeve, the surface of the clamping ring with the circular cross section is attached to the inner wall of the arc-shaped groove, and locking mechanisms are arranged on the upper side and the;

the locking mechanism is used for locking the threaded sleeve after the connector is connected.

Preferably, locking mechanical system includes screw hole, threaded rod, standing groove, plectane and rubber slab, both sides surface all has seted up threaded hole about the swivel nut, and threaded hole inside has all inserted the threaded rod, two sets of standing grooves have been seted up to the swivel nut inside wall, and the standing groove all sets up on the arc wall right side, and is two sets of the standing groove inner wall of all laminating of screw hole inner, and the inside plectane that all is provided with of standing groove, two sets of all fixed connection is on the threaded rod in the middle part of the plectane outside, the inboard all fixedly connected with rubber slab of plectane.

Preferably, the width dimension of the inner wall of the annular clamping groove is slightly larger than the diameter of the section circle of the clamping ring with the circular section.

Preferably, the round-section snap ring is made of spring steel with better elasticity and wear resistance.

Preferably, the inner diameter of the circular-section clamping ring is set to be D, the diameter of the cross-section circle of the circular-section clamping ring is set to be X, D is more than or equal to 10X, and the width of the opening groove of the circular-section clamping ring is less than or equal to X.

Preferably, the outer diameter of the circular-section snap ring is R1, the inner diameter of the arc-shaped groove is R2, and R2 is (1-120%) R1.

Preferably, the knobs are welded at the outer ends of the threaded rods, external threads are arranged on the surfaces of the threaded rods, internal threads are arranged inside the threaded holes, and the external threads on the surfaces of the threaded rods are matched with the internal threads inside the threaded holes.

A connector for preventing a snap ring from falling off and an assembling method thereof comprise the following steps:

(A) firstly, welding a knob on a threaded rod, and screwing the threaded rod into a threaded hole formed in a threaded sleeve by rotating the knob;

(B) the rubber plate is attached to the circular plate in a hot melting mode, and the circular plate and the threaded rod are fixed to be arranged inside the placing groove;

(C) sleeving the threaded sleeve on the shell, and pulling the threaded sleeve to slide to the right side of the shell;

(D) and finally, embedding the clamping ring with the circular cross section into the annular clamping groove to prevent the threaded sleeve from falling off from the shell, and completing the assembly of the connector for preventing the clamping ring from falling off.

Compared with the prior art, the screw sleeve of the invention is in a stressed state, the arc-shaped groove is jointed with the surface of the clamping ring with the circular section, the stress point of the arc-shaped groove and the clamping ring with the circular section is at a 45-degree position, the horizontal direction force is converted into the vertical direction force according to the 45-degree decomposition of the stress, so that the larger the locking stress of the clamping ring with the circular section is, the larger the converted vertical direction force is, namely the larger the locking stress is, the clamping ring is clamped by the shell and the screw sleeve more tightly, thereby the adverse factor of the clamping ring caused by the pulling-off of the clamping ring by the locking force is converted into the beneficial factor of the fixation of the clamping ring, the fundamental change is realized, the risk of the falling-off of the clamping ring and the insufficient strength of the screw sleeve and the cracking risk of a plating layer in the riveting and locking process are avoided from the mechanical stress principle, the rectangular friction coefficient is smaller compared with the circular shape, the situation that the connection is unstable due to the fact that the threaded sleeve rotates after being connected is avoided.

Drawings

FIG. 1 is a schematic front view of a half-section configuration of the present invention;

FIG. 2 is a front view of a half-section structure of the present invention in a stressed state;

FIG. 3 is a schematic structural view of a circular cross-section of a snap ring according to the present invention;

FIG. 4 is a side view of a circular cross-section retainer ring according to the present invention;

FIG. 5 is a schematic perspective view of the threaded rod of the present invention in connection with a circular plate and a knob;

FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 2 according to the present invention.

In the figure: 1. a housing; 2. a threaded sleeve; 3. an annular neck; 4. a circular cross-section snap ring; 5. an arc-shaped slot; 6. a threaded hole; 7. a threaded rod; 8. a placement groove; 9. a circular plate; 10. a rubber plate; 11. a knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a connector for preventing a clamping ring from falling off comprises a shell 1 and a threaded sleeve 2, wherein the threaded sleeve 2 is sleeved on the left side of the shell 1, an annular clamping groove 3 is formed in the left side surface of the shell 1, a clamping ring 4 with a circular cross section is arranged inside the annular clamping groove 3, an arc-shaped groove 5 is formed in the inner wall of the right side of the threaded sleeve 2, the surface of the clamping ring 4 with the circular cross section is attached to the inner wall of the arc-shaped groove 5, and locking mechanisms are arranged on the upper side;

the locking mechanism is used to lock the threaded sleeve 2 after the connector connection is completed.

Concretely, locking mechanical system includes screw hole 6, threaded rod 7, standing groove 8, plectane 9 and rubber slab 10, screw hole 6 has all been seted up on both sides surface about the swivel nut 2, and screw hole 6 is inside all to insert threaded rod 7, two sets of standing grooves 8 have been seted up to 2 inside walls of swivel nut, and standing groove 8 all sets up on 5 right sides of arc wall, 6 the inner 8 inner walls of standing groove of all laminating of two sets of screw holes, and standing groove 8 is inside all to be provided with plectane 9, the equal fixed connection in the middle part in the outside of two sets of plectanes 9 is on threaded rod 7, the inboard all fixedly connected with rubber slab 10 of plectane 9, because the coefficient of friction of rubber slab 10 is bigger.

Specifically, the width dimension of the inner wall of the ring-shaped clamping groove 3 is slightly larger than the diameter of the cross section circle of the circular-section clamping ring 4, so that the circular-section clamping ring 4 can be sleeved inside the ring-shaped clamping groove 3 and has a certain moving space.

Specifically, the circular-section snap ring 4 is preferably made of spring steel having relatively good elasticity and wear resistance.

Specifically, the inner diameter of the circular-section clamping ring 4 is set to be D, the diameter of the cross-section circle of the circular-section clamping ring 4 is set to be X, D is larger than or equal to 10X, the opening groove width of the circular-section clamping ring 4 is smaller than or equal to X, the opening groove width of the circular-section clamping ring 4 is reduced, and the situations of local abrasion and unsmooth rotation caused after long-term use are avoided.

Specifically, the outer diameter of the circular-section snap ring 4 is R1, the inner diameter of the arc-shaped groove 5 is R2, and R2 is (1-120%) R1, so that the arc-shaped groove 5 and the circular-section snap ring 4 are attached to each other in outer diameter.

Concretely, knob 11 has all been welded to 7 outer ends of threaded rod, and 7 surfaces of threaded rod are equipped with the external screw thread, and the inside internal thread that is equipped with of screw hole 6 matches with the external screw thread on 7 surfaces of threaded rod and the inside internal thread of screw hole 6 for threaded

rod

7 and 6 threaded connection of screw hole can promote the purpose that plectane 9 and rubber slab 10 removed when reaching rotation threaded rod 7.

(A) firstly, welding a knob 11 on a threaded rod 7, and screwing the threaded rod 7 into a threaded hole 6 formed in a threaded sleeve 2 by rotating the knob 11;

(B) the rubber plate 10 is hot-melted and adhered on the circular plate 9, and the circular plate 9 and the threaded rod 7 are fixed and arranged in the placing groove 8;

(C) sleeving the threaded sleeve 2 on the shell 1, and pulling the threaded sleeve 2 to slide to the right side of the shell 1;

(D) and finally, embedding the circular-section clamping ring 4 into the annular clamping groove 3 for stopping the thread insert 2 from falling off from the shell 1 and completing the assembly of the connector for preventing the clamping ring from falling off.

In conclusion, according to the connector for preventing the snap ring from falling and the assembling method thereof, the snap ring with the circular cross section is used for replacing the traditional rectangular snap ring, the risk of falling of the snap ring and the risks of insufficient strength of the threaded sleeve and cracking of a plating layer in the riveting locking process are avoided from the mechanical stress principle, the threaded sleeve can be fixed after the connection is completed, so that the connection is more stable, the whole connector for preventing the snap ring from falling is convenient and rapid to assemble, is convenient for batch production, has high production efficiency, can be used for various connectors, and has good application prospect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent connector that snap ring drops, includes casing (1) and swivel nut (2), casing (1) left side cover is equipped with swivel nut (2), its characterized in that: an annular clamping groove (3) is formed in the left side surface of the shell (1), a clamping ring (4) with a circular cross section is arranged inside the annular clamping groove (3), an arc-shaped groove (5) is formed in the inner side wall of the threaded sleeve (2), the outer side surface of the clamping ring (4) with the circular cross section is attached to the inner wall of the arc-shaped groove (5), and locking mechanisms are arranged on the upper side and the lower side of the threaded sleeve (2);

the locking mechanism is used for locking the threaded sleeve (2) after the connector is connected.

2. A connector for preventing a retainer ring from coming off according to claim 1, wherein: locking mechanical system includes screw hole (6), threaded rod (7), standing groove (8), plectane (9) and rubber slab (10), screw hole (6) have all been seted up to both sides surface about swivel nut (2), and screw hole (6) inside threaded rod (7) of all having inserted, two sets of standing groove (8) have been seted up to swivel nut (2) inside wall, and standing groove (8) all set up on arc wall (5) right side, and are two sets of screw hole (6) inner is the standing groove (8) inner wall of all laminating, and standing groove (8) inside all is provided with plectane (9), and is two sets of plectane (9) outside middle part is fixed connection on threaded rod (7) all, plectane (9) inboard all fixedly connected with rubber slab (10).

3. A connector for preventing a retainer ring from coming off according to claim 1, wherein: the width size of the inner wall of the annular clamping groove (3) is slightly larger than the diameter of the cross section circle of the circular cross section clamping ring (4).

4. A connector for preventing a retainer ring from coming off according to claim 1, wherein: the round-section snap ring (4) is preferably made of spring steel with better elasticity and wear resistance.

5. A connector for preventing a retainer ring from coming off according to claim 1, wherein: the inner diameter of the circular-section clamping ring (4) is set to be D, the diameter of a cross-section circle of the circular-section clamping ring (4) is set to be X, D is larger than or equal to 10X, and the width of an opening groove of the circular-section clamping ring (4) is smaller than or equal to X.

6. A connector for preventing a retainer ring from coming off according to claim 1, wherein: the outer diameter of the circular-section clamping ring (4) is R1, the inner diameter of the arc-shaped groove (5) is R2, and R2 is (1-120%) R1.

7. The connector for preventing a snap ring from coming off as set forth in claim 2, wherein: knob (11) have all been welded to threaded rod (7) outer end, threaded rod (7) surface is equipped with the external screw thread, the inside internal thread that is equipped with of screw hole (6), the external screw thread on threaded rod (7) surface cooperatees with the inside internal thread of screw hole (6).

8. A connector for preventing a retainer ring from coming off and a method of assembling the same according to any one of claims 1 to 7, wherein: the method comprises the following steps:

(A) firstly, welding a knob (11) on a threaded rod (7), and screwing the threaded rod (7) into a threaded hole (6) formed in a threaded sleeve (2) by rotating the knob (11);

(B) the rubber plate (10) is attached to the circular plate (9) in a hot melting mode, and the circular plate (9) and the threaded rod (7) are fixed to be arranged inside the placing groove (8);

(C) sleeving the threaded sleeve (2) on the shell (1), and pulling the threaded sleeve (2) to slide to the right side of the shell (1);

(D) and finally, embedding the circular-section clamping ring (4) into the annular clamping groove (3) for preventing the threaded sleeve (2) from falling off from the shell (1) and completing the assembly of the connector for preventing the clamping ring from falling off.