Digital television signal receiving device

Abstract

A digital television signal receiving device comprises a cover, a signal receiving board, a signal joint and a supporting part, wherein the signal receiving board is placed in the cover, the back side of the cover is provided with a joint sleeve and a rotating connection cavity, the signal joint and the signal receiving board are electrically connected and installed in the joint sleeve in a sleeved mode, an inner rotating ring, an outer rotating ring, a small circumferential limiting groove, a large circumferential limiting groove and a rotating mandrel are arranged in the rotating connection cavity, the supporting part comprises a connecting convex ring, a limiting die block, a die block fixing part, a fixing sleeve, a spring and a supporting leg, the rotating mandrel is sleeved with the fixing sleeve, the limiting die block is provided with a limiting convex block, an inner limiting end face and an outer limiting end face, the limiting convex block is in running fit with the inner rotating ring, the outer limiting end face is in running fit with the outer rotating ring, the limiting convex block is arranged in the small circumferential limiting groove, the inner limiting end face abuts against the outer rotating ring, and the limiting die block is placed in the large circumferential limiting groove. The digital television signal receiving device is small in size, can be placed indoors at will, be taken at will and be freely folded and unfolded, and has the good decorative function.

Description

technical field [0001] The invention relates to an antenna device, in particular to a digital TV signal receiving device. Background technique [0002] All devices that use electromagnetic waves to transmit information require antennas. Therefore, in the fields of broadcasting, communications, meteorology, aerospace, and electronic countermeasures, antennas become a key component of the system. [0003] At present, there are many forms and types of digital antennas, among which pot-type antennas and telescopic rod-type antennas are the most widely used. With the increasing number of portable equipment, people's requirements for antennas are getting higher and higher. Antennas must not only have excellent electrical signal receiving functions, but also be easy to erect, disassemble and decorate. Small, easy to erect and collect, but also has good decorative performance. [0004] Traditional antennas, under the conditions of satisfying electrical and mechanical properties, u...

AI Technical Summary

Problems solved by technology

[0004] Under the conditions of satisfying the electrical and mechanical properties, the traditional antenna usually has a large structural size and heavy weight. At the same time, as the height of the antenna increases, its structural size and weight increase sharply, resulting in complicated erection and disassembly, let alone satisfying portable requirements

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