Medium wave receiving antenna capable of automatically adjusting angle

Abstract

The utility model discloses a medium wave receiving antenna capable of automatically adjusting an angle, and relates to the technical field of radio and television antennas, the medium wave receiving antenna comprises a medium wave receiving antenna body, a driving mechanism, a gear ring plate and a bottom plate, the gear ring plate is movably installed above the bottom plate, the driving mechanism is used for controlling the gear ring plate to rotate, and the driving mechanism is used for driving the gear ring plate to rotate. The medium wave receiving antenna body is installed on the gear ring plate through the adjusting assembly. The driving mechanism comprises a second driving motor fixedly installed on the outer wall of the bottom plate, the end wall of an output shaft of the second driving motor is fixedly connected with a first gear, and the inner wall of a gear ring plate is rotationally connected with a second gear. Through the arranged driving mechanism, the medium wave receiving antenna body can be driven to rotate to adjust the angle, so that manual adjustment by a worker is not needed, and the workload of the worker is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of radio and television, in particular to a medium wave receiving antenna capable of automatically adjusting its angle. Background Art

[0002] The medium wave loop receiving antenna is an antenna used to receive broadcast signals in the medium and short wave bands. It is usually made of metal wire wound into a ring shape, which can interact with the electromagnetic field of the medium and short wave bands and convert electromagnetic energy into electrical signals, thereby receiving broadcast signals. This antenna has certain directivity and gain, which can improve the sensitivity and quality of signal reception.

[0003] Due to the technical characteristics of medium wave (frequency band range 526.5kHz-1606.5kHz) transmission, it is easily blocked and faded by signals due to the influence of high-rise buildings and terrain in cities. Monitoring points are usually set up in machine rooms. It is not easy for indoor receiving antennas to be close to windows, and they are interfered by noise from electricity and equipment, resulting in poor received signals. In particular, bad weather has a significant impact on the reception effect. It is usually necessary for on-duty personnel to manually adjust the antenna angle to optimize the reception effect. The manual adjustment method is more troublesome. In order to facilitate the adjustment of the antenna, a medium wave receiving antenna with automatic angle adjustment is designed. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a medium wave receiving antenna which can automatically adjust the angle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A medium wave receiving antenna capable of automatically adjusting an angle comprises a medium wave receiving antenna body, a driving mechanism, a gear ring plate and a bottom plate, wherein the gear ring plate is movably mounted above the bottom plate, the driving mechanism is used to control the gear ring plate to rotate, and the medium wave receiving antenna body is mounted on the gear ring plate through an adjusting component;

[0007] The driving mechanism includes a second driving motor fixedly mounted on the outer wall of the base plate, the output shaft end wall of the second driving motor is fixedly connected to a first gear, the inner wall of the gear ring plate is rotatably connected to a second gear, the second gear is respectively meshed with the first gear and the teeth on the gear ring plate, and a limit assembly is also provided on the base plate, and the limit assembly is used to control the rotation range of the gear ring plate.

[0008] The above technical solution further includes: an adjustment plate is fixedly installed on the bottom wall of the medium wave receiving antenna body, the adjustment component includes a first driving motor fixedly installed on the outer wall of the gear ring plate, a driving gear is fixedly installed on the output shaft end wall of the first driving motor, a half gear is fixedly installed on the bottom wall of the adjustment plate, the driving gear and the half gear are meshed, a fixing frame is symmetrically installed on the outer wall of the gear ring plate, a rotating arm is fixedly installed on the fixing frame, and the end of the rotating arm away from the fixing frame is rotatably connected to the side wall of the adjustment plate through a rotating shaft.

[0009] A plurality of slide bars are fixedly mounted on the bottom wall of the gear ring plate, a slide groove is provided on the outer wall of the bottom plate, and one end of the slide bar away from the gear ring plate is slidably connected to the inner wall of the slide groove.

[0010] The limit assembly includes a first travel switch and a second travel switch fixedly mounted on the bottom wall of the base plate, a touch rod fixedly mounted on the inner wall of the gear ring plate, contacts of the first travel switch and the second travel switch are located on the moving path of the touch rod, and the first travel switch, the second travel switch, the second drive motor and the first drive motor are electrically connected to the controller respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the driving mechanism is provided to drive the medium wave receiving antenna body to rotate and adjust the angle, thereby eliminating the need for manual adjustment by the staff, thus saving the workload of the staff.

[0013] 2. In the utility model, a first travel switch and a second travel switch are provided, and the rotation range of the medium wave receiving antenna body is controlled within the range of 0° to 180° by the first travel switch and the second travel switch, which further facilitates the adjustment of the medium wave receiving antenna body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0015] Figure 2 It is a second overall structural schematic diagram of the utility model;

[0016] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 5 for Figure 3Schematic diagram of the enlarged structure at point B in the middle.

[0019] In the figure:

[0020] 10. Medium wave receiving antenna body; 21. Adjustment plate; 22. First drive motor; 23. Active gear; 24. Half gear; 25. Rotating arm; 26. Fixed bracket; 31. Second drive motor; 32. First gear; 33. Second gear; 34. Gear ring plate; 35. Bottom plate; 36. Slide rod; 37. Slide groove; 41. Touch rod; 42. First travel switch; 43. Second travel switch. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] See attached Figure 1-5 The utility model provides a medium wave receiving antenna capable of automatically adjusting the angle, comprising a medium wave receiving antenna body 10,

[0024] It also includes a driving mechanism, a gear ring plate 34 and a bottom plate 35. The gear ring plate 34 is movably mounted above the bottom plate 35. The driving mechanism is used to control the gear ring plate 34 to rotate. The medium wave receiving antenna body 10 is mounted on the gear ring plate 34 through an adjustment component.

[0025] The driving mechanism includes a second driving motor 31 fixedly mounted on the outer wall of the base plate 35, the output shaft end wall of the second driving motor 31 is fixedly connected with a first gear 32, the inner wall of the gear ring plate 34 is rotatably connected with a second gear 33, and the second gear 33 is respectively meshed with teeth on the first gear 32 and the gear ring plate 34.

[0026] An adjustment plate 21 is fixedly mounted on the bottom wall of the medium wave receiving antenna body 10, and the adjustment assembly includes a first drive motor 22 fixedly mounted on the outer wall of the gear ring plate 34, a driving gear 23 is fixedly mounted on the output shaft end wall of the first drive motor 22, a half gear 24 is fixedly mounted on the bottom wall of the adjustment plate 21, the driving gear 23 and the half gear 24 are meshed, a fixing frame 26 is symmetrically mounted on the outer wall of the gear ring plate 34, a rotating arm 25 is fixedly mounted on the fixing frame 26, and an end of the rotating arm 25 away from the fixing frame 26 is rotatably connected to the adjustment plate through a rotating shaft 21; wherein the central axis of the half gear 24 is in the same position as the central axis of the rotating shaft, when the teeth on the outer wall of the driving gear 23 mesh with the teeth on the outer wall of the half gear 24, the half gear 24 can rotate around the rotating shaft; when the tilt angle of the medium wave receiving antenna body 10 is adjusted, the first driving motor 22 can be started, the first driving motor 22 drives the driving gear 23 to rotate, the teeth on the outer wall of the driving gear 23 mesh with the half gear 24 to rotate, so that the half gear 24 drives the adjustment plate 21 to rotate, thereby adjusting the tilt angle.

[0027] A plurality of slide bars 36 are fixedly mounted on the bottom wall of the gear ring plate 34, a slide groove 37 is provided on the outer wall of the bottom plate 35, and one end of the slide bar 36 away from the gear ring plate 34 is slidably connected to the inner wall of the slide groove 37; wherein the slide bar 36 provides support force for the gear ring plate 34, and when the gear ring plate 34 rotates, the gear ring plate 34 drives the slide bar 36 to move on the inner wall of the slide groove 37.

[0028] A limit assembly is also provided on the bottom plate 35, and the limit assembly is used to control the rotation range of the gear ring plate 34. The limit assembly includes a first travel switch 42 and a second travel switch 43 fixedly mounted on the bottom wall of the bottom plate 35, and a touch rod 41 is fixedly mounted on the inner wall of the gear ring plate 34. The contacts of the first travel switch 42 and the second travel switch 43 are located on the moving path of the touch rod 41. The first travel switch 42, the second travel switch 43, the second drive motor 31 and the first drive motor 22 are electrically connected to the controller respectively; wherein, the movement range of the touch rod 41 is controlled within the range of 0° to 180° by the provided limit assembly, that is, When the touch rod 41 touches the contact of the first stroke switch 42, the first stroke switch 42 sends an electric signal to the controller. After receiving the electric signal, the controller transmits the electric signal to the second drive motor 31, and the second drive motor 31 stops rotating. Similarly, when the second drive motor 31 rotates in the opposite direction, when the touch rod 41 touches the contact of the second stroke switch 43, the second stroke switch 43 sends an electric signal to the controller. After receiving the electric signal, the controller transmits the electric signal to the second drive motor 31, and the second drive motor 31 stops rotating, thereby controlling the rotation range of the gear ring plate 34 within the range of 0° to 180°.

[0029] In this embodiment, the working principle of the device is: when 10 is rotationally adjusted, 31 can be started, 31 drives 32 to rotate, 32 drives 33 and 34 to rotate, so that 34 drives the adjustment component and 10 to rotate, thereby rotating 10, without the need for manual adjustment by the staff, saving the staff's workload.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medium wave receiving antenna capable of automatically adjusting an angle, comprising a medium wave receiving antenna body (10), characterized in that: It also comprises a driving mechanism, a gear ring plate (34) and a bottom plate (35), wherein the gear ring plate (34) is movably mounted above the bottom plate (35), the driving mechanism is used to control the gear ring plate (34) to rotate, and the medium wave receiving antenna body (10) is mounted on the gear ring plate (34) through an adjustment component; The driving mechanism comprises a second driving motor (31) fixedly mounted on the outer wall of the bottom plate (35); the output shaft end wall of the second driving motor (31) is fixedly connected to a first gear (32); the inner wall of the gear ring plate (34) is rotatably connected to a second gear (33); the second gear (33) is respectively meshed with teeth on the first gear (32) and the gear ring plate (34); a limit assembly is also provided on the bottom plate (35); the limit assembly is used to control the rotation range of the gear ring plate (34).

2. The medium wave receiving antenna capable of automatically adjusting the angle according to claim 1, characterized in that: An adjustment plate (21) is fixedly mounted on the bottom wall of the medium wave receiving antenna body (10); the adjustment assembly comprises a first driving motor (22) fixedly mounted on the outer wall of the gear ring plate (34); a driving gear (23) is fixedly mounted on the output shaft end wall of the first driving motor (22); a half gear (24) is fixedly mounted on the bottom wall of the adjustment plate (21); the driving gear (23) and the half gear (24) are meshed; a fixing frame (26) is symmetrically mounted on the outer wall of the gear ring plate (34); a rotating arm (25) is fixedly mounted on the fixing frame (26); an end of the rotating arm (25) away from the fixing frame (26) is rotatably connected to the side wall of the adjustment plate (21) via a rotating shaft.

3. The medium wave receiving antenna capable of automatically adjusting the angle according to claim 2, characterized in that: A plurality of slide bars (36) are fixedly mounted on the bottom wall of the gear ring plate (34), a slide groove (37) is provided on the outer wall of the bottom plate (35), and one end of the slide bar (36) away from the gear ring plate (34) is slidably connected to the inner wall of the slide groove (37).

4. The medium wave receiving antenna capable of automatically adjusting the angle according to claim 3, characterized in that: The limit assembly comprises a first travel switch (42) and a second travel switch (43) fixedly mounted on the bottom wall of the base plate (35); a touch rod (41) is fixedly mounted on the inner wall of the gear ring plate (34); contacts of the first travel switch (42) and the second travel switch (43) are located on the moving path of the touch rod (41); and the first travel switch (42), the second travel switch (43), the second drive motor (31) and the first drive motor (22) are electrically connected to a controller respectively.

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