Fast coupling structure of waterproof cable connector

• US 7,422,463 B2
• Filed: 09/14/2007
• Issued: 09/09/2008
• Est. Priority Date: 02/09/2007
• Status: Expired due to Fees

• Current Assignee: Ko-An Kuo
• Original Assignee: Ko-An Kuo
• Inventors: Kuo, Ko-An
• Primary Examiner(s): Gushi; Ross N
• Application Number:
  US11/898,727
• Publication Number:
  US 20080194137A1
• Time in Patent Office: 361 Days
• Field of Search: 439/349, 439/589, 439/271, 439/277
• US Class Current: 439/349
• CPC Class Codes: H01R 13/5205 Sealing means between cable and housing, e.g. grommet H01R13/5221 takes precedence
• CPC Class Codes: H01R 13/5219 Sealing means between coupling parts, e.g. interfacial seal
• CPC Class Codes: H01R 13/622 Screw-ring or screw-casing H01R13/623 takes precedence

Abstract

The invention relates to a fast coupling structure of waterproof cable connector, mainly comprising a male connecting joint and a female connecting joint, both are positioned on the cable end for connection of electric power source or signals on an electric apparatus; the invention enables both of the male and the female connecting joints to have the fast coupling function and the waterproof effects; therefore, a user is able to easily and quickly connect or disassemble the coupling structure.

Claims

1. A fast coupling structure of waterproof cable connector, mainly comprising:

a male connecting joint and a female connecting joint by molding, for connection of electric power source or signals on an electric apparatus, both are fastened on the electric power source or signal transmission end of a cable wire;

the characteristics are described as follow;

the male connecting joint comprises a male housing, a cover and a plurality of male connectors;

the male housing is formed in the shape of a cylinder, having a plurality of terminal holes disposed inside thereof and a longitudinal groove disposed on the outer surface of the front thereof;

the groove having a leakage preventing ring and a convex ring, disposed on the rear edge thereof;

in addition, the convex ring has at least a groove and a raised portion disposed on the rear edge thereof;

the raised portion having an aperture horizontally disposed corresponding to the position on one lateral side of the groove and an aperture vertically disposed corresponding to the position on the other lateral side of the groove away from the raised portion;

a C-shaped rail is positioned between the two apertures sleeved by a press-resistant spring;

the cover has two concave rings included in the inner surface thereof and an inner rim inwardly disposed on the rear thereof to sleeve the male housing on the rear, thereby enabling the inner rim to be wedged on the rear area of the convex ring and enabling the cover to revolve freely;

the two concave rings respectively dispose an E-shaped retaining rings, each of the E-shaped retaining rings inwardly forms three elastic retaining points;

in addition, the cover has two raised portions correspondently and upwardly disposed on the inner surface thereof along the inner rim;

wherein one of the two raised portions has the same height as a raised portion on the male housing and the other raised portion is at higher position having a slot set thereof;

the male connector has the rear thereof connected an electric conductive copper-core of a cable wire and positioned in the terminal holes of the male housing;

eventually, the rear of the male housing and the end of the cable wire are integrated by a molding wiring gripper;

the female connecting joint comprises a female housing and a plurality of female connectors;

the female housing is formed in the cylinder shape, having a coupling sleeve extended to form a space onward and inside thereof;

the female housing has a plurality of terminal holes set inside thereof;

the internal diameter of the coupling sleeve is correspondent with the external diameter on the front of the male housing of the male connecting joint and a rib is vertically disposed on the inner surface thereof corresponding to the position of the longitudinal groove on the male housing;

the outer surface of the coupling sleeve is shaped with an onward taper angle, having three retaining grooves disposed corresponding to the three retaining points on each E-shaped retaining ring and three channels are disposed between the retaining grooves;

the rear of the female connector and the electric conductive copper-core of the cable wire are connected together and positioned in the terminal holes of the female housing and protruded onward to the front of the coupling sleeve;

eventually, the rear of the female housing and the end of the cable wire are integrated by the molding wiring gripper;

to assemble the invention, a user inserts the longitudinal groove on the male housing of the male connecting joint into the rib in the female housing of the female connecting joint and subsequently, the position of the male connector automatically corresponds to that of the female connector and both are coupled together;

meanwhile, the front of the male housing of the male connecting joint is inserted into the space formed in the coupling sleeve on the front of the female housing of the female connecting joint;

upon complete positioning, the three retaining points on an E-shaped retaining ring inside the cover of the male connecting joint are wedged in the three retaining grooves outside the coupling sleeve of the female connecting joint;

thereby the male connecting joint and the female connecting joint are quickly coupled together;

upon detachment of the wedged in the three retaining grooves outside the coupling sleeve of the female connecting joint, the cover is revolved to a certain angle to enable the three retaining points on the E-shaped retaining ring to be apart from the three retaining grooves outside the coupling sleeve and correspondent with the positions of the channels;

the structure is then easily and quickly pulled out and detached.

2. The fast coupling structure of waterproof cable connector of claim 1, wherein the structure has a position indicator and a direction indicator, both are labeled on the male connecting joint cover;

a position indicator is placed outside the convex ring on the rear of the coupling sleeve of the female connecting joint.