CN206370511U - A kind of coaxial cable connecting device - Google Patents

Abstract

The utility model discloses a kind of coaxial cable connecting device, including middle body and two fixed plate bodies, the two ends of the middle body are respectively equipped with connection boss, provided with the cable aperture for accommodating coaxial cable in the intermediate sleeve body, described cable aperture runs through two connection boss of middle body, the middle part of the fixed plate body is provided with being connected the positioning hole that boss is coordinated, and is detachably connected between the fixed plate body and middle body.The utility model aims to provide a kind of coaxial cable connecting device that can be stably connected with two coaxial cables.

Description

A coaxial cable connection device

technical field

The utility model belongs to the field of cable connection, in particular to a coaxial cable connection device.

Background technique

In the prior art, coaxial cable docking is usually composed of left and right joints and middle pin-type connecting devices. For example, Chinese Patent Publication No.: CN104241906A discloses a radio frequency coaxial cable connector. The radio frequency coaxial cable connector includes Outer conductor, inner conductor and insulator, wherein, the above-mentioned outer conductor has a cylindrical structure, and a stepped ring surface is provided in the central through-hole; the above-mentioned insulator is installed in the central through-hole of the above-mentioned outer conductor, and is closely attached to the through-hole of the outer conductor The inner step ring surface, the middle part of the insulator is provided with a through hole; the inner conductor passes through the through hole in the middle part of the insulator, and extends into the central through hole of the outer conductor. Although it realizes the connection of coaxial cables, it needs to install joints on the two coaxial cables, and also needs to cooperate with the intermediate connector to realize the connection. Poor contact or open circuit, poor connection reliability, seriously affect signal transmission.

In order to improve the connection reliability, some designers have proposed a connection method of directly fixing the coaxial cables at both ends, such as Chinese Patent Publication No.: CN204706698U, which discloses a coaxial cable butt joint, which consists of a sleeve, a round tube connecting the sleeve, the core Wire connection terminal, left and right shielded wire extruded tapered lining ring, left and right waterproof extruded fixed sealing rubber ring, left and right nuts, the copper core wire of the coaxial cable extends into the core wire terminal and is fixedly connected by screws, the left and right The shielding wire extruded tapered bushing ring fits in the inner hole of the threaded sleeve respectively with the horn-shaped tapered ports at the left and right ends of the round tube connecting sleeve to fix the shielding wire of the coaxial cable, and the left and right waterproof squeezed and fixed sealing rubber rings elastically deform respectively The left and right coaxial cables are tightly sealed and fixed, and at the same time, the left and right ends of the inner hole of the screw sleeve are sealed. However, such a butt joint has relatively high requirements on the size of the coaxial cable, and the reliability of connection and fixation is poor.

Utility model content

The utility model aims at overcoming the above-mentioned shortcomings in the prior art, and provides a coaxial cable connection device capable of stably connecting two coaxial cables.

In order to achieve the above object, the utility model adopts the following technical solutions:

A coaxial cable connection device, comprising a middle sleeve body and two fixing plates, the two ends of the middle sleeve body are respectively provided with connecting bosses, and the middle sleeve body is provided with a cable hole for accommodating a coaxial cable. The above-mentioned cable hole runs through the two connecting bosses of the middle casing, and the middle part of the fixed plate body is provided with a positioning hole for matching with the connecting bosses, and the fixed plate body and the middle casing body are detachably connected. The middle sleeve is set outside the coaxial cable to be connected, the inner core of the coaxial cable is docked, and the outer core of the coaxial cable is inserted between the fixing plate and the connecting boss to fix it with the connecting device. At this time, the coaxial cable The connection of the inner core is located in the cable hole of the middle sleeve. Therefore, the connection device of this solution can fix both the inner and outer cores of the coaxial cable, which improves the connection reliability.

As a preference, the connecting boss is provided with an outer cone coaxially arranged with the cable hole, the diameter of the outer cone is gradually reduced outward from the middle casing, and the side wall of the positioning hole is provided with an outer cone. Internal taper for face mates.

Preferably, the taper of the outer tapered surface is smaller than or equal to the taper of the inner tapered surface.

As a preference, the fixed plate body is provided with several mounting holes around the positioning holes, and the intermediate sleeve is provided with bolt holes corresponding to the mounting holes around the connecting boss, and the fixed plate body and the intermediate connection between screw connections.

The beneficial effects of the utility model are: (1) use the connecting device to reconnect two coaxial cables with a shorter length, which greatly improves the usability of the coaxial cables; (2) the connection of the coaxial cables is stable and reliable, and can effectively Prevent looseness between the two coaxial cables.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is a schematic diagram of the installation structure of the utility model.

In the figure: middle sleeve body 1, connecting boss 1a, cable hole 1b, outer cone surface 101, fixed plate body 2, inner cone surface 201, positioning hole 202, screw 3, coaxial cable 4, outer core 4a, copper connection Tube 5, heat shrink tube 6, self-adhesive insulating tape 7, waterproof sealing layer 8, PVC tape 9.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

In the embodiment shown in Figure 1, a coaxial cable connection device includes an intermediate sleeve body 1 and two fixed plate bodies 2, the two ends of the intermediate sleeve body are respectively provided with connecting bosses 1a, and the intermediate sleeve body is provided with The cable hole 1b for accommodating the coaxial cable, the cable hole runs through the two connecting bosses of the middle casing, the connecting boss is provided with an outer tapered surface 101 arranged coaxially with the cable hole, the diameter of the outer tapered surface is from the middle casing to the outside gradually shrinks. The middle part of the fixed plate body is provided with a positioning hole 202 that cooperates with the connecting boss, and the fixed plate body and the middle sleeve are detachably connected. The taper of the cone surface is less than or equal to the taper of the inner cone surface. The fixed plate body is provided with four mounting holes around the positioning holes, and the middle sleeve body is provided with bolt holes corresponding to the mounting holes around the connecting boss, and the fixed plate body and the intermediate connection are connected by screws 3 .

In the actual installation process, as shown in FIG. 2 , after the two coaxial cables 4 to be connected are straightened, both ends are sawed flat, and a section of inner core is exposed at the end of the coaxial cables. Then insert the copper connecting pipe 5 into the inner wire core, crimp according to regulations to connect the inner wire cores at both ends, wrap the copper connecting pipe with self-adhesive insulating tape 7 , and wrap the self-adhesive insulating tape with PVC tape 9 . Put the heat-shrinkable tube 6 and the connecting device on the cable, move the connecting device to the joint of the inner wire core, arrange the outer wire core 4a of the coaxial cable and insert it between the middle sleeve body and the fixed plate body, and rotate and tighten the screw to fix it. The board body and the intermediate connection are fixed, and the outer core of the coaxial cable is clamped tightly through the cooperation of the inner and outer tapered surfaces. After that, a waterproof sealing layer 8 can be set outside the connection device, wrap the waterproof tape around the surface of the connection position, wrap the PVC tape around the outside of the waterproof tape, then wrap the PVC tape with a heat shrinkable tube, and finally wrap the waterproof tape and the PVC tape Heat shrink the two ends of the tube to complete the connection of the coaxial cable.

Claims (4)

1. a kind of coaxial cable connecting device, it is characterized in that, including middle body（1）With two fixed plate bodies（2）, the centre Body（1）Two ends be respectively equipped with connection boss（1a）, the middle body（1）The interior cable aperture provided with receiving coaxial cable （1b）, described cable aperture（1b）Through middle body（1）Two connection boss（1a）, the fixed plate body（2）Middle part Provided with being connected boss（1a）The positioning hole coordinated（202）, the fixed plate body（2）With middle body（1）Between it is removable Unload connection.

2. a kind of coaxial cable connecting device according to claim 1, it is characterized in that, the connection boss（1a）It is provided with With cable aperture（1b）Coaxially arranged male cone (strobilus masculinus)（101）, the male cone (strobilus masculinus)（101）Diameter by middle body（1）Outwards gradually Reduce, the positioning hole（202）Side wall be provided with and male cone (strobilus masculinus)（101）The inner conical surface of cooperation（201）.

3. a kind of coaxial cable connecting device according to claim 2, it is characterized in that, the male cone (strobilus masculinus)（101）Taper Less than or equal to inner conical surface（201）Taper.

4. a kind of coaxial cable connecting device according to claim 1 or 2 or 3, it is characterized in that, described fixed plate body （2）In positioning hole（202）Around be provided with some mounting holes, the middle body（1）In connection boss（1a）Around be provided with Bolt hole corresponding with mounting hole, the fixed plate body（2）The screw between middle connection（3）Connection.