A device for adjusting the down tilt angle of a communication antenna

Abstract

The application relates to the technical field of communication antenna installation, and discloses a device for adjusting the downward inclination angle of a communication antenna, which comprises a mounting rod, an adjusting seat, a resisting rod, a wind measuring disc and an adjusting intelligent controller, the resisting rod is vertically inserted with the mounting rod, the bottom of the resisting rod is in abutment with the top of the adjusting seat, and an electromagnet is arranged on one side of the resisting rod and mounted with the mounting rod; the middle part of the wind measuring disc is rotationally connected with the mounting rod through a transmission rod I, the lower part of the transmission rod I is connected with the middle part of a volute spring; the adjusting intelligent controller is provided with a wind speed detection module and a regulation and control module; the device can automatically detect the wind speed state, control the locking rotation state of the adjusting seat according to the wind speed, automatically lock the downward inclination angle adjusting device of the communication antenna module in a strong wind environment, reduce the influence of the strong wind on the installation stability of the communication antenna module, make the communication antenna module still keep stable in the strong wind environment, and reduce the deviation change of the downward inclination angle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication antenna installation, in particular to a device for adjusting the downtilt angle of a communication antenna. BACKGROUND

[0002] A base station antenna is a device for wirelessly connecting a mobile communication network and a user's mobile terminal. Base station antennas are mainly divided into two types: omnidirectional antennas and directional antennas. An omnidirectional antenna uniformly radiates in a 360-degree range in the horizontal pattern and is suitable for a station type in a rural county area system, with a large coverage range. A directional antenna radiates in a certain angle range in the horizontal pattern and is suitable for a station type in an urban area system, with a small coverage range, a large user density, and a high frequency utilization rate. A base station using a directional antenna generally has three or four sectors, each sector having one or more pairs of antennas to achieve 360-degree full coverage.

[0003] In the prior art, a device for adjusting the downtilt angle of a communication antenna is disclosed in Chinese Patent Publication No. CN119153949A, which includes a main shaft and a bottom bracket fixed on the main shaft. A plurality of mounting shafts are uniformly fixed on the upper end of the bottom bracket. A plurality of threaded rods are rotatably connected to the side walls of the mounting shafts. The device further includes a plurality of communication antennas rotatably connected to the mounting shafts and a plurality of sliding sleeves slidably connected to the mounting shafts. A connecting rod is rotatably connected to each of the sliding sleeves. By pushing the different lifting slides upward and rotating the drive shaft, the downtilt angles of the plurality of communication antennas can be adjusted, thereby simplifying the steps of adjusting the downtilt angles of the plurality of communication antennas. However, the above adjustment structure is relatively complex, and multiple linkage mechanisms are provided to adjust the downtilt angles of the communication antennas. After adjustment, the adjusted communication antennas can remain stable in good weather conditions, but the stability of the adjustment device cannot be guaranteed in strong winds and other weather conditions, which may affect the stability of the adjusted communication antennas.

[0004] Therefore, it is necessary to provide a device for adjusting the downtilt angle of a communication antenna to solve the above technical problems. SUMMARY

[0005] The present application aims to provide a device for adjusting the downtilt angle of a communication antenna to solve the above problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The utility model provides a device for adjusting the down angle of communication antenna, including: the outer ring of mounting rod is equipped with a plurality of single pole, the corresponding communication antenna module is installed on each single pole, the lower end of communication antenna module is connected with single pole through rotating seat, the upper end of communication antenna module is connected with single pole through telescopic connecting rod, still include:

[0008] Adjusting seat, the vertical sliding joint of adjusting seat with mounting rod, the middle part rotationally connected with adjusting screw of adjusting seat, the outer ring of adjusting seat is connected with telescopic connecting rod on communication antenna module through control component, the telescopic connecting rod is controlled through the vertical movement of adjusting seat to adjust the inclination angle of communication antenna module,

[0009] The abutment rod is vertically inserted with the mounting rod, the bottom of the abut rod is in abutment with the top of the adjusting seat, and the abutment rod is provided with an electromagnet mounted on the mounting rod on one side.

[0010] The wind measuring disc is provided on the top of the mounting rod, the middle part of the wind measuring disc is rotatably connected with the mounting rod through a transmission rod, the lower part of the transmission rod is connected with the middle part of the volute spring, and the outer ring of the volute spring is provided with a pressure sensor.

[0011] The adjusting intelligent controller is installed on the mounting rod, the wind speed detection module and the control module are arranged on the adjusting intelligent controller, the wind speed detection module is signal connected with the control module and the pressure sensor respectively, and the control module is signal connected with the electromagnet.

[0012] As a further scheme of the present application, the control component includes a guide rod inserted with the outer ring of the adjusting seat and a adjusting ring sleeved with the single rod, the end of the guide rod is rotatably connected with the adjusting ring, the outer ring of the adjusting ring is rotatably connected with the connecting rod at the corresponding position of the telescopic connecting rod, and the end of the connecting rod is rotatably connected with the middle shaft at the corresponding position of the telescopic connecting rod.

[0013] As a further scheme of the present application, the volute spring is installed in the middle part of the mounting rod, the outer side of the volute spring is provided with a limiting block fixed with the inner wall of the mounting rod, and the pressure sensor is installed between the limiting block and the outer wall of the volute spring.

[0014] As a further scheme of the present application, a ratchet assembly is installed between the transmission rod and the inner wall of the mounting rod to limit the rotation of the transmission rod in a single direction.

[0015] As a further scheme of the present application, the lower section of the conducting rod one is designed as a conducting rod two, the bottom of the conducting rod two is connected with the middle part of the volute spring, the bottom of the conducting rod one is installed with an upper gear, the top end of the conducting rod two is provided with a lower gear meshing with the upper gear, the lower gear is vertically slidingly connected with the conducting rod two, a knocking mechanism is installed on the conducting rod two for vibrating the mounting rod by rotating the conducting rod two.

[0016] As a further scheme of the present application, the knocking mechanism comprises a conducting disc vertically slidingly connected with the conducting rod two, a protrusion fixed along the outer ring of the conducting disc, the protrusion corresponding to the top of the resisting rod, and the conducting disc connected with the lower gear.

[0017] As a further scheme of the present application, the middle part of the conducting rod one is vertically inserted with a plug rod, the top of the plug rod is fixed with a receiving disc, the bottom end of the plug rod penetrates through the upper gear and is connected with the lower gear, and the bottom of the lower gear is installed with a supporting spring.

[0018] As a further scheme of the present application, the supporting spring is embeddedly installed in the conducting rod two, and the top of the supporting spring is connected with the lower gear.

[0019] As a further scheme of the present application, the conducting disc is in a disc structure, and the outer ring of the conducting disc abuts against the inner wall of the mounting rod.

[0020] As a further scheme of the present application, the end of the adjusting lead screw is installed with a driving member for driving the adjusting lead screw to rotate.

[0021] The present application adjusts the downtilt angle of the communication antenna module by controlling the vertical movement of the adjusting seat along the mounting rod, and after adjusting the downtilt angle, automatically detects the external environment by using the wind speed detection module. When it is determined that the wind speed of the external environment is too large at this time, the electromagnet is controlled to work by the control module to lock the position of the resisting rod, thereby limiting the top of the adjusting seat and generating a continuous downward pressure on the adjusting seat. The position of the adjusting seat is locked by the joint action of the adjusting lead screw and the resisting rod, the wind speed state is automatically detected, and the adjusting seat locking state is controlled according to the wind speed, so that the communication antenna module downtilt angle adjusting device can be automatically locked in a strong wind environment, the influence of strong wind on the stability of the communication antenna module is reduced, and the communication antenna module still remains stable in a strong wind environment, and the change of the downtilt angle is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in combination with the drawings and embodiments.

[0023] Figure 1 is a schematic view of the overall structure of the present application;

[0024] Figure 2 is the schematic diagram of the installation rod and the adjusting seat structure in the present application;

[0025] Figure 3 is the schematic diagram of the internal structure of the installation rod in the present application;

[0026] Figure 4 is the control principle block diagram of the adjusting intelligent controller in the present application;

[0027] Figure 5 is the schematic diagram of the position structure of the conducting rod one and the conducting rod two in the present application;

[0028] Figure 6 is the schematic diagram of the position of the receiving disc after bearing in the present application.

[0029] In the figure: 1, installation rod; 2, single rod; 3, communication antenna module; 4, rotating seat; 5, telescopic connecting rod; 6, adjusting seat; 7, adjusting intelligent controller; 8, conducting rod one; 9, wind measuring disc; 10, receiving disc; 11, inserting rod; 12, adjusting ring; 13, connecting rod; 14, guide rod; 15, adjusting screw; 16, resisting rod; 17, electromagnet; 18, volute spring; 19, pressure sensor; 20, ratchet assembly; 21, upper gear; 22, lower gear; 23, conducting disc; 24, conducting rod two; 25, supporting spring. DETAILED DESCRIPTION

[0030] Example one

[0031] As shown in Figures 1-4 , a device for adjusting the downward inclination angle of a communication antenna, comprising: an installation rod 1, a plurality of single rods 2 are installed on the outer circle of the installation rod 1, a communication antenna module 3 is correspondingly installed on each single rod 2, the lower end of the communication antenna module 3 is rotationally connected with the single rod 2 through a rotating seat 4, and the upper end of the communication antenna module 3 is connected with the single rod 2 through a telescopic connecting rod 5, a plurality of communication antenna modules 3 are installed on the corresponding single rods 2, the downward inclination angle of the communication antenna module 3 is adjusted by adjusting the angle between the communication antenna module 3 and the single rod 2, and the device further comprises an adjusting seat 6, a resisting rod 16, a wind measuring disc 9, and an adjusting intelligent controller 7; the adjusting seat 6 is vertically slidably connected with the installation rod 1, the middle part of the adjusting seat 6 is rotationally connected with an adjusting screw 15, and the outer circle of the adjusting seat 6 is connected with the telescopic connecting rod 5 on the communication antenna module 3 through a control assembly; the telescopic connecting rod 5 is controlled to be telescoped by vertically moving the adjusting seat 6, so as to adjust the inclination angle of the communication antenna module 3; the vertical movement of the adjusting seat 6 is adjusted by controlling the rotation of the adjusting screw 15, the telescoping length of the telescopic connecting rod 5 is adjusted by the vertical movement of the adjusting seat 6, the communication antenna module 3 is deflected around the rotating seat 4, and the downward inclination angle of the communication antenna module 3 is adjusted.

[0032] It is worth mentioning that, as Figure 2 and Figure 3As shown, the abutting rod 16 is vertically inserted with the mounting rod 1, the bottom of the abutting rod 16 abuts with the top of the adjusting seat 6, one side of the abutting rod 16 is provided with an electromagnet 17 mounted with the mounting rod 1, after adjusting the downtilt angle of the communication antenna module 3 by moving the adjusting seat 6, the position of the adjusting seat 6 is limited, thereby locking the extension length of the telescopic connecting rod 5, so that the communication antenna module 3 remains in a stable state after adjusting the downtilt angle, the bottom of the abutting rod 16 always abuts with the adjusting seat 6 during the vertical movement of the adjusting seat 6, at this time, the electromagnet 17 controls the magnetic attraction to the abutting rod 16, the abutting rod 16 is made of ferromagnetic metal material, the abutting rod 16 is magnetically locked by the electromagnet 17 and remains stationary, at this time, the bottom of the abutting rod 16 abuts with the adjusting seat 6 to lock the position of the adjusting seat 6.

[0033] In addition, as shown in Figure 3 and Figure 5 As shown, the wind measuring disc 9 is arranged at the top of the mounting rod 1, the middle part of the wind measuring disc 9 is rotatably connected with the mounting rod 1 through the transmission rod 1, the lower part of the transmission rod 1 is connected with the middle part of the volute spring 18, the outer ring of the volute spring 18 is provided with a pressure sensor 19, when the outdoor wind speed increases, the strong wind will blow the wind measuring disc 9 to rotate, thereby driving the transmission rod 1 to rotate, the transmission rod 1 rotates to store the elastic potential energy of the volute spring 18 through the bottom part, the outer ring of the volute spring 18 accumulates the elastic potential energy to generate a continuous pressure on the pressure sensor 19, along with the gradual increase of the outdoor wind speed, the pressure value detected by the pressure sensor 19 gradually increases and exceeds the set value, the abutting rod 16 is locked by controlling the electromagnet 17 to work, thereby limiting the top of the adjusting seat 6 and generating a continuous downward pressure on the adjusting seat 6, since the adjusting seat 6 can only move vertically with the mounting rod 1 and cannot rotate, it cannot rotate with the screw thread of the adjusting screw 15, thereby locking the position of the adjusting seat 6 by the combined action of the adjusting screw 15 and the abutting rod 16, the automatic locking of the downtilt angle adjusting device of the communication antenna module 3 can be realized in a strong wind environment, thereby reducing the influence of the strong wind on the installation stability of the communication antenna module 3.

[0034] In the embodiment, the adjustment intelligent controller 7 is installed on the mounting rod 1, the adjustment intelligent controller 7 is provided with a wind speed detection module and a control module, the wind speed detection module is signal connected with the control module and the pressure sensor 19 respectively, the control module is signal connected with the electromagnet 17, the position of the adjustment seat 6 is adjusted by rotating the adjustment lead screw 15 to adjust the downtilt angle of the communication antenna module 3, the wind blows the wind vane 9 to rotate, at this time the volute spring 18 continuously accumulates elastic potential energy, the pressure sensor 19 detects the pressure value of the volute spring 18 shell action, and feeds back the pressure value to the wind speed detection module, the wind speed detection module compares the received pressure value with the preset pressure threshold value (the pressure value corresponding to the wind speed exceeding the limited value is preset in the wind speed detection module), when the wind speed detection module judges that the pressure value exceeds the preset pressure threshold value, it is judged that the external environment wind speed is too large at this time, the wind speed detection module sends a locking signal to the control module, the control module controls the electromagnet 17 to work, the electromagnet 17 works to generate magnetic force and magnetically attract the resisting rod 16, the position of the resisting rod 16 is locked, thereby limiting the position of the adjustment seat 6, realizing automatic detection of wind speed state, and controlling the locking state of the adjustment seat 6 according to the wind speed, which can automatically lock the downtilt angle adjustment device of the communication antenna module 3 in a strong wind environment, reducing the influence of strong wind on the installation stability of the communication antenna module 3.

[0035] Please refer to Figure 1 , the control assembly comprises a guide rod 14 inserted with the outer circle of the adjustment seat 6 and an adjustment ring 12 sleeved with the single rod 2, the end of the guide rod 14 is rotationally connected with the adjustment ring 12, the outer circle of the adjustment ring 12 is rotationally connected with the connecting rod 13 at the corresponding position of the telescopic connecting rod 5, when it is necessary to adjust the downtilt angle of the communication antenna module 3, the vertical movement of the adjustment seat 6 is controlled, thereby driving the vertical movement of the guide rod 14, and further driving the movement of the adjustment ring 12 along the single rod 2, since the guide rod 14 is inserted with the adjustment seat 6, the guide rod 14 and the adjustment seat 6 are automatically driven to slide when the adjustment ring 12 moves along the single rod 2, so that the adjustment ring 12 can stably move along the single rod 2, when the adjustment ring 12 moves along the single rod 2, the adjustment ring 12 will drive the middle shaft of the telescopic connecting rod 5 to move through the connecting rod 13, thereby adjusting the extension distance of the telescopic connecting rod 5 and the downtilt angle of the communication antenna module 3, wherein the telescopic connecting rod 5 is Figure 1 a common double connecting rod structure in the prior art, the distance between the two ends of the double connecting rod can be adjusted by controlling the position of the middle shaft of the double connecting rod, thereby adjusting the telescopic amount of the end of the double connecting rod.

[0036] Preferably, as Figure 3As shown, the scroll spring 18 is installed in the middle of the mounting rod 1, the outer side of the scroll spring 18 is provided with a limiting block fixed with the inner wall of the mounting rod 1, the pressure sensor 19 is installed between the limiting block and the outer wall of the scroll spring 18, when the elastic potential energy accumulated in the scroll spring 18 is released, it will drive the outer shell of the scroll spring 18 to rotate and generate a sustained pressure on the pressure sensor 19, so as to facilitate the stable detection of the force of the scroll spring 18 on the pressure sensor 19, the end of the adjusting screw 15 is provided with a driving part for driving the adjusting screw 15 to rotate, so as to drive the adjusting seat 6 to move vertically and adjust the downward angle of the communication antenna module 3.

[0037] Embodiment two

[0038] On the basis of embodiment one, as shown in Figure 3 , Figure 5 and Figure 6 , the ratchet assembly 20 is installed between the conducting rod one 8 and the inner wall of the mounting rod 1, so as to limit the rotation of the conducting rod one 8 in a single direction, when the strong wind blows the anemorumb 9 and drives the conducting rod one 8 to rotate, the conducting rod one 8 controls the scroll spring 18 to accumulate elastic potential energy, in order to avoid the scroll spring 18 driving the conducting rod one 8 to rotate in the opposite direction under the condition of small wind force, at this time the ratchet assembly 20 limits the reverse rotation of the conducting rod one 8, so that the scroll spring 18 continuously accumulates elastic potential energy.

[0039] In actual use environment, not only the strong wind in winter environment will affect the installation position of the communication antenna module 3, but also the continuous snowfall outside will gradually cover the communication antenna module 3, which not only affects the signal strength of the communication antenna module 3, but also causes the communication antenna module 3 to deviate, affecting its downward angle, the lower part of the conducting rod one 8 is designed as the conducting rod two 24, the bottom of the conducting rod two 24 is connected with the middle part of the scroll spring 18, the bottom of the conducting rod one 8 is provided with the upper gear 21, the top end of the conducting rod two 24 is provided with the lower gear 22 engaged with the upper gear 21, the lower gear 22 is vertically and slidingly connected with the conducting rod two 24, the knocking mechanism is installed on the conducting rod two 24, so as to drive the mounting rod 1 to vibrate by the rotation of the conducting rod two 24, the rotation of the conducting rod one 8 drives the upper gear 21 to rotate and drives the conducting rod two 24 to rotate through the lower gear 22 engaged therewith, so that the scroll spring 18 accumulates elastic potential energy, and when it is necessary to remove the snow on the communication antenna module 3, at this time the lower gear 22 is controlled to move downward and disengage with the upper gear 21, the knocking mechanism drives the mounting rod 1 to vibrate, so as to shake off the snow on the communication antenna module 3, which can reduce the accumulation of snow on the communication antenna module 3, reduce the snow removal and maintenance period of personnel, and reduce the maintenance cost.

[0040] It is worth mentioning that, as shown in Figure 5 and Figure 6As shown, the knocking mechanism includes a transmission disc 23 vertically slidingly connected with the second transmission rod 24, a protrusion fixed along the outer circle of the transmission disc 23, the protrusion corresponding to the top of the abutting rod 16, the transmission disc 23 being connected with the lower gear 22, the transmission disc 23 being controlled to move downward and abut against the top of the abutting rod 16, at this time the second transmission rod 24 rotates to drive the transmission disc 23 to rotate, the transmission disc 23 controls the protrusion to knock the top of the abutting rod 16, thereby driving the abutting rod 16 to vibrate, and further driving the entire mounting rod 1 to vibrate to remove the accumulated snow, at the same time in the vibration process, the transmission disc 23 is in a downward pressing state at the top of the abutting rod 16, and the abutting rod 16 can further lock the adjusting seat 6, so as to keep the adjusting seat 6 stable in the vibration snow removal process, so that the communication antenna module 3 after the adjustment of the downward inclination angle keeps stable, the middle part of the first transmission rod 8 is vertically inserted with a plug rod 11, the top of the plug rod 11 is fixed with a receiving disc 10, the bottom end of the plug rod 11 penetrates the upper gear 21 and is connected with the lower gear 22, the bottom of the lower gear 22 is provided with a supporting spring 25, when there is wind and snow outdoors, the strong wind will drive the anemorumbus 9 to rotate and make the volute spring 18 accumulate elastic potential energy, at this time the snow will also accumulate on the receiving disc 10, when the accumulated snow is too much, reaches the preset value, such as Figure 6 As shown, the receiving disc 10 drives the plug rod 11 to press downward and drives the lower gear 22 at the bottom to disengage from the upper gear 21, at this time the lower gear 22 is not limited, the elastic potential energy of the volute spring 18 is released and drives the second transmission rod 24 and the lower gear 22 to rotate, thereby driving the transmission disc 23 to rotate, the rotating transmission disc 23 knocks the top of the abutting rod 16 through the protrusion, and removes the accumulated snow on the communication antenna module 3 through vibration, achieving the purpose of automatic snow removal and reducing personnel maintenance cost.

[0041] In the embodiment, as shown in Figure 5As shown, the support spring 25 is embedded in the conducting rod two 24, and the top of the support spring 25 is connected with the gear 22 below. By arranging the support spring 25, a supporting force can be provided for the conducting disc 23. Different types of support springs 25 can be replaced according to the snowfall intensity in different geographical positions, so as to adjust the supporting force on the conducting disc 23, thereby adjusting the weight of the large snow that the receiving disc 10 bears. After the receiving disc 10 bears the preset weight of large snow, the support spring 25 is compressed, at this time, the conducting disc 23 moves downward and abuts against the top of the supporting rod 16, and after the snow on the receiving disc 10 synchronously vibrates and falls, the support spring 25 pushes the conducting disc 23 to move upward and reset. The above operation is repeated, so that in a large snow environment, the influence of the accumulated snow on the adjusting device and the signal emitted by the communication antenna module 3 is reduced. The conducting disc 23 is in a disc structure, the outer ring of the conducting disc 23 abuts against the inner wall of the mounting rod 1, the conducting disc 23 can limit the position of the conducting rod two 24, so that the conducting rod two 24 is always located in the middle of the inner cavity of the mounting rod 1. When the conducting disc 23 moves downward along the conducting rod two 24, the gear 22 below drives the gear 21 above to disengage, and the elastic potential energy of the volute spring 18 is released to drive the conducting rod two 24 to stably rotate.

Claims

1. A device for adjusting the downtilt angle of a communication antenna, comprising: The mounting rod has multiple single rods mounted on its outer ring. Each single rod has a corresponding communication antenna module mounted on it. The lower end of the communication antenna module is rotatably connected to the single rod via a rotating seat, and the upper end of the communication antenna module is connected to the single rod via a telescopic connecting rod. The feature is that it further includes: An adjustment seat is vertically slidably connected to a mounting rod. An adjustment screw is rotatably connected to the middle of the adjustment seat. The outer ring of the adjustment seat is connected to a telescopic link on the communication antenna module through a control component. The telescopic link is extended or retracted by the vertical movement of the adjustment seat to adjust the tilt angle of the communication antenna module. A stop rod is vertically inserted into a mounting rod, the bottom of the stop rod abuts against the top of the adjusting seat, and an electromagnet is provided on one side of the stop rod and installed with the mounting rod. An anemometer is mounted on the top of a mounting rod. The middle part of the anemometer is rotatably connected to the mounting rod via a transmission rod. The lower part of the transmission rod is connected to the middle part of a spiral spring. A pressure sensor is mounted on the outer ring of the spiral spring. An intelligent control unit is installed on a mounting rod. The intelligent control unit is equipped with a wind speed detection module and a control module. The wind speed detection module is connected to the control module and a pressure sensor signal respectively. The control module is connected to an electromagnet signal. A ratchet assembly is installed between the inner wall of the first transmission rod and the mounting rod to limit the first transmission rod from rotating in one direction. The lower section of the first transmission rod is designed as a second transmission rod. The bottom of the second transmission rod is connected to the middle of the spiral spring. An upper gear is installed at the bottom of the first transmission rod, and a lower gear that meshes with the upper gear is provided at the top of the second transmission rod. The lower gear is vertically slidably connected to the second transmission rod. A striking mechanism is installed on the second transmission rod to drive the mounting rod to vibrate through the rotation of the second transmission rod. The striking mechanism includes a transmission disk that is vertically slidably connected to the second transmission rod, and a protrusion fixed along the outer ring of the transmission disk. The protrusion corresponds to the top of the abutment rod, and the transmission disk is connected to the gear below. A rod is vertically inserted into the middle of the first transmission rod. A receiving plate is fixed to the top of the rod. The bottom end of the rod passes through the upper gear and is connected to the lower gear. A support spring is installed at the bottom of the lower gear.

2. The device for adjusting the downtilt angle of a communication antenna according to claim 1, characterized in that: The control assembly includes a guide rod that is inserted into the outer ring of the adjustment seat and an adjustment ring that is sleeved with the single rod. The end of the guide rod is rotatably connected to the adjustment ring. The outer ring of the adjustment ring is rotatably connected to a connecting rod at a corresponding position on the telescopic connecting rod. The end of the connecting rod is rotatably connected to the central shaft on the corresponding telescopic connecting rod.

3. The device for adjusting the downtilt angle of a communication antenna according to claim 1, characterized in that: The spiral spring is installed in the middle of the mounting rod, and a limiting block fixed to the inner wall of the mounting rod is provided on the outer side of the spiral spring. The pressure sensor is installed between the limiting block and the outer wall of the spiral spring.

4. The device for adjusting the downtilt angle of a communication antenna according to claim 1, characterized in that: The support spring is embedded in the second transmission rod, and the top of the support spring is connected to the gear below.

5. The device for adjusting the downtilt angle of a communication antenna according to claim 1, characterized in that: The conduction disk has a disc-shaped structure, and the outer ring of the conduction disk abuts against the inner wall of the mounting rod.

6. The device for adjusting the downtilt angle of a communication antenna according to claim 1, characterized in that: The end of the adjusting screw is equipped with a driving component for driving the adjusting screw to rotate.

Images