Search

CN-224204358-U - Adjustable frequency modulation antenna

CN224204358UCN 224204358 UCN224204358 UCN 224204358UCN-224204358-U

Abstract

The utility model discloses an adjustable frequency modulation antenna which comprises an antenna main body, wherein the upper surface of the antenna main body is fixedly connected with a fixed rod, scale marks are arranged on the front surface of the fixed rod close to two ends of the fixed rod, a T-shaped connector is fixedly arranged in the middle of the front surface of the fixed rod, frequency modulation rods are slidably arranged on two ends of the outer surface of the fixed rod, an adjusting structure is arranged in the fixed rod, and the adjusting structure comprises a rotating block, a rotating shaft rod, a first bearing, a first bevel gear, a rectangular transmission groove and a second bevel gear. According to the adjustable frequency modulation antenna, when the frequency modulation rod is required to be adjusted, the rotating block is rotated, so that the rectangular telescopic column drives the rectangular sliding block fixedly arranged at one end of the upper surface and the lower surface to slide in the rectangular sliding groove, and the rectangular telescopic column slides in the rectangular groove, and further drives the frequency modulation rod fixedly connected with the outer end of the rectangular telescopic column to slide on the outer surface of the fixed rod until the outer surface is adjusted to a proper position.

Inventors

  • SHANG ERFENG
  • ZENG YINGJUN
  • ZHU YULIAN

Assignees

  • 鞍山天翔广播电视设备有限公司

Dates

Publication Date
20260505
Application Date
20250422

Claims (7)

  1. 1. The adjustable frequency modulation antenna is characterized by comprising an antenna main body (1), wherein the upper surface of the antenna main body (1) is fixedly connected with a fixed rod (3), graduation marks (301) are arranged on the front surface of the fixed rod (3) close to two ends, a T-shaped joint (2) is fixedly arranged in the middle of the front surface of the fixed rod (3), frequency modulation rods (4) are slidably arranged on two ends of the outer surface of the fixed rod (3), an adjusting structure (5) is arranged inside the fixed rod (3), and the adjusting structure (5) comprises a rotating block (501), a rotating shaft rod (502), a first bearing (503), a first bevel gear (504), a rectangular transmission groove (505), a second bevel gear (506), a circular connecting rod (507), a rectangular sliding groove (508), a rectangular sliding block (509), a rectangular groove (510), a rectangular telescopic column (511), a second threaded rod (512) and a second bearing (513).
  2. 2. The adjustable frequency modulation antenna of claim 1, wherein a rectangular transmission groove (505) is formed in the middle of the inside of the fixed rod (3), a first bearing (503) is fixedly arranged in the middle of the upper surface of the rectangular transmission groove (505), and a rotating shaft lever (502) is arranged on the first bearing (503).
  3. 3. The adjustable frequency modulation antenna of claim 2, wherein a rotating block (501) is fixedly arranged on the upper surface of the rotating shaft rod (502), a first bevel gear (504) is fixedly connected to the lower surface of the rotating shaft rod (502), and a second bearing (513) is fixedly arranged in the middle of the surfaces of two ends of the rectangular transmission groove (505).
  4. 4. An adjustable frequency modulation antenna according to claim 3, wherein a circular connecting rod (507) is mounted on the second bearing (513), a second bevel gear (506) is fixedly mounted on the outer surface of the circular connecting rod (507) near the other end, and threaded rods (512) are fixedly connected to the surfaces of the two ends of the circular connecting rod (507).
  5. 5. The adjustable FM antenna according to claim 4, wherein a first bevel gear (504) fixedly connected to the lower surface of said rotary shaft (502) is meshed with a second bevel gear (506) fixedly mounted on the outer surface of a circular connecting rod (507) near the other end, and a rectangular telescopic column (511) is mounted on the outer surface of said threaded rod (512) in a threaded manner.
  6. 6. The adjustable frequency modulation antenna of claim 5, wherein rectangular sliding blocks (509) are fixedly arranged at one ends of the upper surface and the lower surface of the rectangular telescopic column (511), rectangular grooves (510) are formed in the surfaces of two ends of the fixed rod (3), and rectangular sliding grooves (508) are formed in the upper surface and the lower surface of the rectangular grooves (510).
  7. 7. The adjustable frequency modulation antenna according to claim 6, wherein the rectangular sliding groove (508) is slidably provided with a rectangular sliding block (509), and the outer end of the rectangular telescopic column (511) is fixedly connected with a frequency modulation rod (4).

Description

Adjustable frequency modulation antenna Technical Field The utility model relates to the technical field of frequency modulation antennas, in particular to an adjustable frequency modulation antenna. Background Generally speaking, if a plurality of sets of frequency modulation programs share a pair of transmitting antennas, cost is saved, but because the program wave bands of all channels are different, the signal transmission distance of the transmitted signals is very limited and is very easy to cause signal loss due to different frequencies, for example, a frequency modulation transmitting antenna with the publication number of CN202487738U is formed by an antenna main body and a frequency modulation antenna, the antenna main body is of a T-shaped structure, a port connected with a transmitter is arranged at the lower end of the antenna main body, a T-shaped connector fixed by screws is arranged at the top end of the antenna main body, the port passes through the inside of the antenna main body and is connected with a conductive frequency modulation contact fixed in the T-shaped connector by wires, the T-shaped connector is provided with a screw hole for fixing the frequency modulation antenna, the frequency modulation antenna is a telescopic device, the frequency modulation antenna is sleeved and connected with a sliding frequency modulation rod by a fixed rod, scales for adjusting the frequency band are carved on the fixed rod, one end of the fixed rod is provided with a metal conductor, a fixed screw is arranged on the metal conductor, the frequency modulation transmitting antenna can be made of an aluminum alloy material, the antenna main body passes through the antenna main body and the U-shaped antenna is fixed with the corresponding to the corresponding scales by moving to the two end of the fixed rod. Disclosure of utility model The utility model mainly aims to provide an adjustable frequency modulation antenna which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The utility model provides an adjustable frequency modulation antenna, includes the antenna main part, antenna main part upper surface fixedly connected with dead lever, the dead lever front surface is close to both ends and all is provided with the scale mark, dead lever front surface middle part fixed mounting has T type to connect, equal slidable mounting in dead lever surface both ends has the frequency modulation pole, the dead lever inside is provided with adjusting structure, adjusting structure includes turning block, rotatory axostylus axostyle, bearing, umbrella form gear, rectangle transmission groove, umbrella form gear, round connection pole, rectangle spout, rectangle slider, rectangular channel, rectangle telescopic column, threaded rod, bearing No. two. Preferably, a rectangular transmission groove is formed in the middle of the inside of the fixed rod, a first bearing is fixedly arranged in the middle of the upper surface of the rectangular transmission groove, and a rotating shaft rod is arranged on the first bearing. Preferably, the upper surface of the rotating shaft rod is fixedly provided with a rotating block, the lower surface of the rotating shaft rod is fixedly connected with a first bevel gear, and the middle parts of the surfaces of the two ends of the rectangular transmission groove are fixedly provided with a second bearing. Preferably, a round connecting rod is installed on the second bearing, a second bevel gear is fixedly installed on the outer surface of the round connecting rod close to the other end of the round connecting rod, and threaded rods are fixedly connected to the surfaces of the two ends of the round connecting rod. Preferably, the first bevel gear fixedly connected with the lower surface of the rotating shaft rod is meshed with the second bevel gear fixedly installed on the outer surface of the round connecting rod close to the other end, and a rectangular telescopic column is installed on the outer surface of the threaded rod in a threaded mode. Preferably, rectangular sliding blocks are fixedly installed at one ends of the upper surface and the lower surface of the rectangular telescopic column, rectangular grooves are formed in the surfaces of the two ends of the fixing rod, and rectangular sliding grooves are formed in the upper surface and the lower surface of the rectangular grooves. Preferably, a rectangular sliding block is slidably arranged in the rectangular sliding groove, and the outer end of the rectangular telescopic column is fixedly connected with a frequency modulation rod. Compared with the prior art, the utility model has the following beneficial effects: According to the utility model, through the adjusting structure, when the frequency modulation rod is required to be adjusted, the rotating block is rotated, so that the rectangular telescopic column