KR200422210Y1 - Filter one body locking device - Google Patents

Abstract

The present invention is for the filter installed in the cable connection terminal of the subscriber branch or the splitter of the CATV system, and the CATV is watched using the RF signal transmitted from the CATV broadcasting station. The use of filters, such as blocking the signal or passing the RF signal only to specific frequency bands for various channel products, is common.

The present invention is designed to prevent the city hearing by arbitrarily removing and attaching the filter or the subscriber cable connector by the non-subscriber. Since the integrated locking device is applied to the filter, there is no need for a separate locking device. B. Cable connector can be detached and attached arbitrarily to prevent city hearing.

Filter, Splitter, Splitter, Terminal, Cable Connector, Clamp, Holder, Connector Driver

Description

Filter integrated body locking device {Filter one body locking device}

1 is an exploded cross-sectional view of the filter integrated lock device

Figure 2 is a cross-sectional view of the filter-integrated locking device fastened to the terminal

This proposal installs RF signal transmitted from CATV system to terminal on signal terminal of splitter or distributor on coaxial cable, and cuts off various harmful noise propagation from subscriber side or specifies RF signal to various channel products. The present invention relates to a filter-integrated locking device integrated with a filter and cable connection such as passing or blocking only a frequency band.

Normally, CATV system was started for the purpose of resolving the existing astigmatism area of the existing airwaves, but according to the new environment to the high information society, many channels such as airwave broadcasting programs and self-produced programs were transmitted. Various additional services such as the Internet are also provided, and subscribers can be selectively installed according to the subscriber's needs such as filter for tiring due to various channel products of SOC, filter for harmful noise, and filter for internet subscriber only. Restrict viewing on unwanted or paid channels.

These filters are standardized F-type products and have a connecting connector, a body, and a connecting terminal as shown in the structure and function of the bandpass filter described in detail in Korean Patent Publication No. 1999-0022770. In general, the F-type connector used at the subscriber end is used in the form of a connecting connector consisting of a female screw and a pin inside, and a connecting terminal composed of a jack inside so as to be connected to a pin of a male screw and a coaxial cable or a pin of another connecting connector. A cable connector is used to connect a coaxial cable to a connection terminal or a terminal on a terminal board. The cable connector has a hexagonal surface and is connected using a dedicated connector driver.

However, these filters are installed in the terminal box embedded in the inner wall of a building such as a branch or an apartment in an outdoor telephone pole or building roof of each subscriber's terminal in the CATV system, and a filter is installed in the terminal of the terminal plate. There is a problem that the city office can be made by detaching or attaching a filter or a cable connector by an unsubscriber arbitrarily.

In order to prevent such a city hall, Republic of Korea Patent Publication No. 10-0469891 describes a cable connection lock. This is a structure that must be fixed to the terminal of the terminal plate to be screwed to the terminal first and insert the filter into the secondary, there is a hassle of work and inconvenience of having to manage the tube and the filter separately.

In addition, Korean Utility Model Registration No. 20-0411933 describes a cable connection lock case, but this is intended to lock using a cylindrical tube without replacing the existing filter, but the existing filter has a round or square shape. Since the size is not constant, it has to be provided with various kinds of cylindrical tubes, and the C-shaped ring also has to be provided according to the size of the cylindrical tube. This narrow problem makes it difficult to use dedicated pliers.

As described above, the conventional locking device includes a filter to prevent a cable connection by including a filter, and the inconvenience of installation work and inconvenience of managing the filter and an external body separately or problems of effectiveness of the work are inherent. .

The present invention was created in consideration of the above various matters. The purpose of the filter is to fasten and manage the installation work by integrating the locking device so that the filter can be attached to the terminal on the terminal plate of the tap-off or distributor. It is to provide a filter-integrated locking device to reduce the cost through the simplification of and to prevent the city government.

The present invention for achieving the above object is to propagate various harmful noises induced in the subscriber side by installing the RF signal transmitted from the CATV system to the terminal 51 on the terminal plate 50 of the branch board or distributor installed at the subscriber end with a coaxial cable In the configuration of the filter 30 to block or transmit or block only a specific frequency band, there is a feature that can be prevented from showing by integrating a lock device that can not be detached, attached to the filter arbitrarily.

Referring to the present invention in detail based on the accompanying drawings as follows.

1 is provided with a locking jaw 32 at the distal end 31 of a connecting connector of a dedicated filter 30 to implement a filter-integrated locking device 40. Make the inner diameter 11 slightly larger than the outer diameter of the connecting connector portion 31 of the filter 30, and make the locking groove 12 therein to press the filter 30 and the holder 20 into one to catch the filter. The jaw 32 is assembled between the engaging grooves 12 in the holder, so that the outer holder can protrude. The structure of the holder is as follows.

The holder 20 should be able to rotate by accommodating the filter 40 therein and should have an inner diameter of 15 mm or more to freely work through a dedicated connector driver, and the outer diameter of each terminal on the terminal plate of the tap-off or divider. In consideration of this, the maximum length should be 20mm or less, and the length of the filter may be longer than that when the general-purpose cable connector is connected to the filter terminal 33.

In addition, the connection terminal 33 of the filter is a F-shaped connector to have a hexagonal surface, such as a cable connector, so that the connector driver can be used jointly.

The collar 10 is accommodated in the pipe 15 and has the same or slightly smaller outer diameter as the outer diameter of the holder, and allows the inner diameter of the holder and the outer diameter 14 of the collar to be clamped by interference fit and the locking groove 12 of the collar. ) Is composed of a structure that can secure the space that can be rotated by the engaging jaw 32 of the filter.

The filter integrated lock device 40 is integrated to allow the filter to be fixed and rotated between the engaging grooves by inserting the filter 30 into the inside of the outer holder 20 formed by interposing the pipe 15 and the collar 10. to be.

As described above, the present invention does not require a separate locking device by integrating the locking device in using a filter that blocks harmful radio waves or transmits or blocks only a specific frequency in a CATV system. It is possible to prevent the city office by reducing the effect and preventing the filter or cable connector from being attached or detached at any time.

Claims (2)

In the CATV system, a filter is installed at a terminal on a terminal board such as a branch or divider at a subscriber's end to transmit or block the transmitted RF signal only at a specific frequency. Filter-integrated locking device that has a locking groove or a locking jaw in the interior of the filter and the outer holder to press the filter into one, so that the outer holder can run out. The integrated locking device according to claim 1, wherein an attenuator, an equalizer, a terminator, or the like is used in place of a filter installed at a terminal on a terminal plate of a tap-off or a divider.

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