JP3154371U - Coaxial cable coupler - Google Patents

Abstract

The present invention provides a tool-free coaxial cable coupler that can firmly connect a coupler main body to a coaxial cable without using an installation tool, and can be applied to coaxial cables of various sizes. To do. An inner sleeve 21 and an outer sleeve 30 are coaxially combined, a sawtooth 27 is provided on the outer wall surface at the end of the inner sleeve 21, and an annular groove 34 is formed on the outer wall surface at the end of the outer sleeve 30. Form. The slide pipe 50 is slidably coupled to the outer sleeve 30, and an inner flange 57 is installed at one end of the slide pipe 50. When the coaxial cable 60 is inserted into the connector main body 20, the outer conductor 63 and the covering cover 64 of the coaxial cable 60 are attached between the inner sleeve 21 and the outer sleeve 30. When the slide pipe 50 is pulled and moved to a preset position, the inner flange 57 and the covering cover 64 of the coaxial cable 60 are closely coupled. [Selection] Figure 6A

Description

  The present invention relates to a coupler for coupling a coaxial cable to a joint.

  The coaxial cable coupler is knowledge that everyone knows. The F type coaxial cable coupler is coupled to the interface coupler by a typical method, and the coaxial cable and various electronic devices such as TV, CB, FM radio, amateur radio system, etc. can be electrically integrated. it can.

  As shown in FIG. 1, the conventional coaxial cable coupler includes a coupler body 10, an outer sleeve 11, an inner sleeve 12, and a fastener 13, and the inner sleeve 12 is coaxially disposed in the outer sleeve 11. The fastener 13 is disposed around the inner sleeve 12.

  By inserting the free end of the coaxial cable into the connector main body 10, the inner conductor and the insulator of the coaxial cable are positioned in the inner sleeve 12, and the outer conductor and the covering cover are placed between the inner sleeve 12 and the outer sleeve 11. Arrange. A compressive force is applied to the outer sleeve 11 with a hexagonal pressure welding tool to forcibly bond the outer sleeve 11 and the cable cover.

  Coaxial cables and couplers have some inherent problems in combination. First, coaxial cables require the use of three different sized hexagonal pressure welding tools to ensure sufficient compressive force applied to the outer sleeve 11 in various changes in size. This connection method is costly and has the inconvenience of having to carry many types of pressure welding tools and extra tools and must be improved.

  Secondly, with respect to a coaxial cable having a high ratio of the outer conductor, if the coaxial cable is inserted into the coupler main body 10, the outer conductor may be damaged or the direction may be wrong. There is a possibility of being invited.

  The purpose of the present invention is to overcome the problems inherent in the prior art of coaxial cable couplers, and to connect the coupler body to the coaxial cable firmly without using an installation tool, and to be applied to coaxial cables of various sizes. It is an object of the present invention to provide a tool-free coaxial cable coupler that can perform the above-described process.

  In order to achieve the above-described effects and objects, the connector of the present invention includes a connector body and a slide pipe. The connector body has an inner sleeve and an outer sleeve. The coaxial cable is coupled by arranging the inner sleeve and the outer sleeve coaxially, the inner conductor and the insulator of the coaxial cable are arranged on the inner sleeve, and the outer conductor and the covering cover of the coaxial cable are placed on the inner sleeve and the outer sleeve. Place between sleeves. The end of the inner sleeve has a sawtooth. An annular groove is provided on the outer wall surface near the end of the outer sleeve.

  The slide pipe is slidably coupled to the outer sleeve. The inner wall of the slide pipe has a positioning structure. The end of the slide pipe is an inner flange, and when the slide pipe moves from the outer sleeve along the longitudinal direction, the slide pipe positioning structure enters the annular concave groove of the outer sleeve and positions the slide pipe on the outer sleeve. In addition, by encircling the saw blade of the inner sleeve with the inner flange of the slide pipe, the covering cover is installed so as to be sandwiched between the inner flange and the saw blade, thereby being intimately coupled. Thereby, the slide pipe and the coaxial cable are firmly mechanically coupled, and the coaxial cable can be held in the coupler.

It is sectional drawing of the conventional coaxial coupler. 1 is a cross-sectional view of a coupler of a coaxial cable according to an embodiment of the present invention. 1 is a partial cross-sectional perspective view of a coaxial cable coupler according to an embodiment of the present invention; It is sectional drawing of the slide pipe of the coupler of the coaxial cable by one Embodiment of this invention. It is sectional drawing which shows the state which pulled the slide pipe of the connector of the coaxial cable by one Embodiment of this invention, and moved to the preset position. It is sectional drawing for demonstrating the method to attach the coupler of the coaxial cable by one Embodiment of this invention to a coaxial cable. It is sectional drawing for demonstrating the method to attach the coupler of the coaxial cable by one Embodiment of this invention to a coaxial cable. It is sectional drawing for demonstrating the method to attach the coupler of the coaxial cable by one Embodiment of this invention to a coaxial cable.

(One embodiment)
2 and 3 are a sectional view and a partial sectional perspective view of a coupler of a coaxial cable (see FIG. 6A) according to an embodiment of the present invention. The coupler includes a coupler body 20 and a slide pipe 50. The connector main body 20 includes an inner sleeve 21, an outer sleeve 30, and a fastener 40.

  The inner sleeve 21 has a hole 22 and can accommodate the inner conductor 61 and the insulator 62 of the coaxial cable 60 (shown in FIG. 6A). The hole 22 stops at the annular flat bottom 23 inside. The inner sleeve 21 has an outer flange 24, an interface portion 25, and a pipe-like projection end portion 26, and an outer wall surface at the end of the pipe-like projection end portion 26 has a saw tooth 27.

  The outer sleeve 30 includes an outer sleeve body 31 and a rear end extension 32. The outer sleeve body 31 surrounds the interface portion 25 of the inner sleeve 21. The outer diameter and wall thickness of the rear end extension 32 are smaller than the outer sleeve body 31. The outer sleeve 30 is disposed coaxially with the pipe-shaped protrusion end portion 26 of the inner sleeve 21, and an annular hollow portion 33 is formed in the middle. The hollow portion 33 can accommodate the outer conductor 63 and the covering cover 64 of the coaxial cable 60. The outer wall surface near the end of the rear end extension 32 has an annular groove 34.

  The fastener 40 is located at the front end of the connector main body 20. Moreover, the fastener 40 can be used for connection interfaces, such as F type, BNC type, RCA type, and IEC type. The present invention will be described by taking an F-type fastener as an example. The fastener 40 includes a hexagonal portion 41 and an annular end portion 42. The inner surface 43 of the hexagonal portion 41 is formed with a thread groove, and can be combined with various devices to be integrated mechanically and electrically. At the end of the hexagonal portion 41, a protrusion 44 is formed that fits inward. The protrusion 44 is sandwiched between the outer flange 24 and the outer sleeve main body 31 and can freely pivot between the inner sleeve 21 and the outer sleeve 30.

  As shown in FIG. 4, the slide pipe 50 is slidably coupled to the outer sleeve 30. The slide pipe 50 includes a pipe-shaped body 51 having a first end 52 and a second end 53. The pipe-like main body 51 is defined so that the hole stops at the step-like strut portion 55 inside. On the inner wall near the first end 52 of the pipe-shaped main body 51, a positioning structure such as a rib-shaped ring 56 or other protrusion is provided. The width of the rib-shaped ring 56 is smaller than the concave groove 34 of the outer sleeve 30. The second end 53 of the pipe-shaped main body 51 has an inner flange 57. On the outer wall surface of the pipe-shaped main body 51, an annular convex portion 58 or other anti-slip structure is installed. In this way, it is possible to avoid the hand slipping when the slide pipe 50 is pulled out manually. As shown in FIG. 5, when the slide pipe 50 is pulled and moved to a preset position, the rib-like ring 56 of the slide pipe 50 enters the concave groove 34 of the outer sleeve 30, so that the slide pipe 50 is moved to the outer sleeve 30. Can be positioned. Further, the saw tooth 27 of the inner sleeve 21 can be surrounded by the inner flange 57 of the slide pipe 50.

  6A to 6C are views showing a method of attaching the connector main body 20 of the present invention to the coaxial cable 60. FIG. Prior to installation, the insulator 62 and the inner conductor 61 must be exposed by removing a portion of the covering cover 64 from the free end of the coaxial cable 60 and bending the outer conductor 63. At this time, as shown in FIG. 6A, the rib-like ring 56 of the slide pipe 50 is located at the front end of the outer sleeve 30, and the saw tooth 27 of the inner sleeve 21 is not yet surrounded by the inner flange 57 of the slide pipe 50. After preparing the free end of the coaxial cable 60, the free end of the coaxial cable 60 is inserted into the connector main body 20 until the insulator 62 contacts the flat bottom portion 23 of the inner sleeve 21. As shown in FIG. 6B, when inserted, the pipe-like protruding end portion 26 of the inner sleeve 21 is forced to enter between the insulator 62 and the outer conductor 63 of the cable 60. Thereby, the contact part of the sawtooth 27, the insulator 62, and the outer conductor 63 is expanded.

  Immediately thereafter, as shown in FIG. 6C, by applying a force in the “X” direction (see FIG. 6B) to the slide pipe 50, the cable and coupler enter the final coupling stage. By pulling and moving the slide pipe 50, the rib-shaped ring 56 moves from the front end of the outer sleeve 30 to the rear end of the outer sleeve 30. Eventually, the rib-shaped ring 56 enters the concave groove 34. As a result, the inner flange 57 is forcibly coupled to the outer surface of the covering cover 64, whereby the slide pipe 50 and the coaxial cable 60 are mechanically coupled to each other, and the coaxial cable 60 is coupled to the connector main body 20. Held in.

  As mentioned above, the present invention overcomes the drawback of having to use a tool to attach the coupler to the coaxial cable. Further, by pulling and moving the slide pipe 50, a sufficient compressive force can be provided on the covering cover 64 of the coaxial cable 60, and a strong bond can be formed between the coaxial cable 60 and the connector main body 20.

  As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, any change or the like easily associated with an engineer who is familiar with this area does not depart from the technical idea and scope of the present invention. Accordingly, in the claims of the utility model registration claims, all descriptions made to cover all changes and the like are within the scope of the present invention.

  20: coupler main body, 21: inner sleeve, 22: hole, 23: flat bottom, 24: outer flange, 25: interface section, 26: pipe-like projection end, 27: sawtooth, 30: outer sleeve, 31: outer Sleeve body, 32: rear end extension, 33: hollow portion, 34: recessed groove, 40: fastener, 41: hexagonal portion, 42: annular end, 43: inner surface, 44: protrusion, 50: slide pipe 51: pipe-like main body, 52: first end, 53: second end, 54: hole, 55: step-like strat part, 56: rib-like ring, 57: inner flange, 58: annular convex part, 60: Coaxial cable, 61: inner conductor, 62: insulator, 63: outer conductor, 64: covering cover

Claims (6)

A coaxial cable coupler having an inner conductor, an insulator covering the inner conductor, an outer conductor arranged around the insulator, and a covering cover covering the outer conductor, the coaxial cable being connected to various devices Used to connect mechanically and electrically,
It has an inner sleeve, an outer sleeve and a slide pipe,
The inner sleeve and the outer sleeve are arranged coaxially and accommodate the coaxial cable coaxially;
The inner sleeve is attached to the inner conductor and the insulator;
The outer sleeve is attached to the outer conductor and the covering cover;
The slide pipe includes a pipe-like body slidably coupled to the outer sleeve and having a first end and a second end;
The second end of the pipe-shaped body has an inner flange;
The coaxial cable coupler is characterized in that when the slide pipe is pulled and moved to a preset position, the inner flange and the covering cover of the coaxial cable are closely coupled. The inner wall of the first end of the pipe-shaped body has a positioning structure,
The outer wall surface near the end of the outer sleeve has an annular groove.
When the slide pipe is moved from the outer sleeve along the longitudinal direction, the slide pipe is fixed to the outer sleeve by the positioning structure of the slide pipe entering the concave groove of the outer sleeve. The coaxial cable coupler according to claim 1.   The coaxial cable connector according to claim 2, wherein the positioning structure of the slide pipe is a rib-like ring or a protrusion.   The coaxial cable connector according to claim 1, wherein an outer wall surface of the pipe-shaped main body has a non-slip structure.   The coaxial cable connector according to claim 4, wherein the anti-slip structure is an annular convex portion. The outer wall surface at the end of the inner sleeve has a sawtooth,
The coaxial cable coupler according to claim 1, wherein when the slide pipe is pulled and moved to a preset position, the saw blade is surrounded by the inner flange of the slide pipe.

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