JPH0645273U - Coaxial cable connector mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] By preventing the inflow of moisture into the connector nut of the connector by mounting the threaded rod for mounting the connector protruding from the equipment such as the switch, the signal transmission characteristics accompanying the inflow of moisture Prevent the effects of. [Construction] In a coaxial cable connector mounting device in which a connecting rod provided on a connector is screwed onto a screw rod protruding from a device such as a branching device, an inner surface between the connecting nut 2 and the device body 4 is a screw rod. An elastic ring 7 which is pressed against the elastic member 5 by utilizing elasticity is interposed. Then, by tightening the connection nut 2, one end of the elastic ring 7 is connected to the connection nut 2.
Then, the other ends are pressed against the pieces of the device, and the screw rods 5 are mounted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly attaches an F-type coaxial cable connector as disclosed in Japanese Utility Model Publication No. 2-5504 by screwing a connection nut provided on the connector onto a screw rod protruding from a device such as a branching device. The present invention relates to a device for mounting a connector for a coaxial cable (hereinafter simply referred to as a connector) used at the time.

[0002]

[Prior art]

 Conventionally, the end surface of the connector body has been assembled so that the connection nut provided on the connector is screwed and tightened on the screw rod protruding from the equipment, and the tip end is fitted to one end side of the connection nut and rotatably assembled with each other. The waterproof elastic member provided on the outer periphery has a structure that exhibits a watertight effect.

[0003]

[Problems to be solved by the device]

 In this type of equipment, the total length of the branch or distribution screw rod is the depth of the connection nut with the tip of the connector body attached to one end (the length from the end face of the nut to the end face of the connector). However, after tightening, the connector tip fitted into the connection nut and the tip of the screw rod are always pressed against each other after tightening to ensure the electrical contact of the cable outer conductor. However, in the case of the conventional example, after mounting as described above, the base portion of the screw rod is left exposed without exception. Therefore, although the inside of the connection nut is semi-sealed, moisture easily flows into the inside along the thread groove, and these moisture will condense on the inner wall of the connection nut when the temperature drops at night. Since the installation position of the screw rod is usually on the lower side of each device, the connector attached to this will be in a state of being hung on the device as shown in Fig. 1, so that dew condensation will eventually occur on the end face of the connector body. Run down to. If the above-mentioned condensation phenomenon is repeated for a long period of time, the connection nut plays the role of a container and the inside of the connection nut is always submerged, and the waterproof function of the waterproof elastic member provided on the end face of the connector body is remarkable. There is a drawback that it deteriorates and causes water to enter the connector body, and finally the signal transmission characteristics of the connector cannot be maintained normally.

[0004]

[Means for Solving the Problems]

 In a coaxial cable connector mounting device in which a connection nut provided on the connector is screwed onto a screw rod protruding from a switcher or other device, the inner surface between the connection nut and the device main body uses elasticity for the screw rod. By interposing an elastic ring that is pressed against the connection nut, one end of the elastic ring is pressed against the connection nut and the other end is pressed against the piece of the device.

[0005]

[Action]

 By covering the entire fitting part between the screw rod and the connection nut with the elastic ring, the inflow of air into the connection nut is completely blocked, so that no condensation occurs in the connection nut.

[0006]

【Example】

 FIG. 1 shows an embodiment of a device for mounting a connector for a coaxial cable according to the present invention. FIG. 1 is a front view, FIG. 2 is a partially enlarged front view, and FIG. 3 is a partially cutaway enlarged front view before mounting the connector. Is.

In the drawings, 1 is a connector, 2 is a connection nut provided in the connector 1, and the connection nut 2 is provided with a cylindrical end portion 3.

Reference numeral 4 is a branching device, and 5 is a screw rod projecting from the branching device 4. Inside the screw rod 5, a center contact 6 installed in the connection nut of the connector 1 is inserted to make electrical contact. It has an insertion hole.

Reference numeral 7 is an elastic ring in which the inner surface 7a is pressed against the screw rod 5 by utilizing elasticity of the screw rod 5. The elastic ring 7 is a trapezoidal cross-sectional contour shape, and the bottom side 7c of the contour shape body. Is attached to the threaded rod 5 as described above with the switch 4 side.

Then, the connection nut 2 of the connector 1 is screwed onto the screw rod 5 and tightened, whereby one end of the elastic ring 7 is connected to the connection nut 2 and the other end is a component part of the branching device 4. 4a are pressed against each other, and the intermediate portion of the screw rod 5 is covered with the elastic ring 7 to obtain the device of the embodiment.

The elastic ring 7 of the embodiment is made of, for example, ethylene propylene rubber or chloroprene rubber, but synthetic resin can be used without any problem. In short, the elastic ring 7 has water resistance and weather resistance. Any good material will do. Although various shapes are conceivable as shown in FIG. 4, the minimum diameter portion of the inner surface 7a is larger than the inner diameter dimension of the cylindrical end portion of the connection nut 2 and smaller than the outer diameter dimension thereof, and its height is increased. That is, it is preferable that the minimum exposed dimension of the screw rod exposed after the connector 1 is mounted on the equipment or the dimension in the range including the dimension of the protruding dimension of the cylindrical end portion of the connection nut is added.

Reference numeral 9 in the figure denotes a terminating resistor used when no branch wiring is provided for the time being.

[0013]

【effect】

 Since the present invention has the above-mentioned structure, the screw rod can be perfectly mounted by the elastic ring regardless of the manufacturing dimensional error of the screw rod for attaching the connector protruding from the device or the fitting portion of the connection nut. Therefore, there is no concern that moisture will flow into the connection nut, so that the signal transmission characteristics of these devices will not be impaired even after long-term use, and it will be cheap and easy to assemble. There is a great value.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an attachment device for a coaxial cable connector of the present invention.

FIG. 2 is a partially enlarged front view of FIG.

[Fig. 3] Partially enlarged front view before mounting the connector

FIG. 4 is another embodiment of the elastic ring.

[Explanation of symbols]

 1 Connector for coaxial cable 2 Connection nut 4 Branch device 5 Screw rod 7 Elastic ring 8 Main cable 9 Branch cable

Claims (1)

[Scope of utility model registration request] 1. A screw rod projecting from a device such as a branch switch,
In a coaxial cable connector mounting device in which a connection nut provided in the connector is screwed, an elastic ring whose inner surface is pressed against the screw rod using elasticity is interposed between the connection nut and the device body, and the connection nut is tightened. As a result, one end of the elastic ring is press-fitted to the connection nut, and the other end is press-contacted to the piece of the device.