Testing device for simulating antenna load

Abstract

The utility model relates to a test device for simulating antenna load, comprising an antenna support used for supporting an actual use state of a simulation antenna; the load assembly is arranged on one side of the antenna support and used for applying simulation load force to the antenna, and the load assembly comprises a load supporting derrick; the load bracket is arranged on the load supporting derrick; the roller is arranged on the load bracket; the pull rope sleeves the roller, and one end of the pull rope is connected with the antenna; the balancing weight is connected with the other end of the pull rope, and the balancing weight applies a load to the antenna through the pull rope; and the hydraulic lifting mechanism is used for supporting the balancing weight and can statically or dynamically adjust the load force applied to the antenna by the balancing weight. According to the utility model, the actual use state of the antenna can be simulated, static and dynamic loads are applied, the load condition when the antenna is used is truly simulated, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile communication antenna testing, in particular to a test device for simulating antenna load. Background Art

[0002] Existing wind load simulation tests for communication base station antennas typically involve mounting the antenna on a horizontal mast, then placing sandbags equivalent to the wind load on three sides of the mast according to test requirements. This method, however, cannot produce accurate test results due to factors such as the weight of the antenna, the weight of the antenna mounting bracket, and the deflection of the cantilever arm. Utility Model Content

[0003] To this end, the technical problem to be solved by the present invention is to overcome the difficulty in obtaining accurate test results due to defects in the simulated antenna load in the prior art, and to provide a test device for simulating antenna load, which can simulate the actual use state of the antenna and apply static and dynamic loads, truly simulate the load conditions when the antenna is in use, and improve the accuracy of the test results.

[0004] In order to solve the above technical problems, the present invention provides a test device for simulating antenna load, comprising:

[0005] Antenna bracket, used to support the actual use state of the simulated antenna;

[0006] A load assembly is provided on one side of the antenna support and is used to apply a simulated load force to the antenna. The load assembly includes:

[0007] Load supporting pole;

[0008] A load bracket is provided on the load supporting pole;

[0009] A roller is provided on the load support;

[0010] a pull rope, sleeved on the roller, one end of the pull rope being connected to the antenna;

[0011] a counterweight block connected to the other end of the pull rope, wherein the counterweight block applies a load to the antenna through the pull rope;

[0012] The hydraulic lifting mechanism supports the counterweight block and can statically or dynamically adjust the load force applied by the counterweight block on the antenna.

[0013] In one embodiment of the present invention, the hydraulic lifting mechanism is provided to provide a constant supporting force for the counterweight block, thereby simulating the static load of the antenna.

[0014] In one embodiment of the present invention, the dynamic load of the antenna can be simulated by adjusting the supporting force provided by the hydraulic lifting mechanism for the counterweight.

[0015] In one embodiment of the present invention, a plurality of rollers are provided on the load bracket, and the plurality of rollers are distributed in the vertical direction to form a roller group. A pull rope is sleeved on each of the rollers, and the plurality of pull ropes are connected to different positions on the antenna, and the plurality of pull ropes are connected to the same counterweight block.

[0016] In one embodiment of the present invention, a plurality of roller assemblies are arranged on the load bracket along the horizontal direction, and the plurality of roller assemblies can be connected to a variety of antennas of different models.

[0017] In one embodiment of the present invention, a force-bearing flat plate is provided on the force-bearing surfaces of the antenna and the pull rope.

[0018] In one embodiment of the present invention, the antenna bracket includes: an antenna pole and a mounting accessory, one end of the mounting accessory is connected to the antenna pole, and the other end of the mounting accessory is connected to the antenna.

[0019] In one embodiment of the present invention, the mounting accessory includes two mounting arms, one of which is fixedly connected between the antenna pole and the antenna, and the other is telescopically connected between the antenna pole and the antenna, capable of adjusting the distance between the antenna pole and the antenna.

[0020] In one embodiment of the present invention, the antenna pole and the load supporting pole are connected via a cross bar.

[0021] In one embodiment of the present invention, the distance between the antenna pole and the load supporting pole is 1 to 2 meters.

[0022] The above technical solution of the utility model has the following advantages compared with the prior art:

[0023] The utility model discloses a test device for simulating antenna load, wherein an antenna bracket is provided to support and fix the antenna, simulating the state of the antenna when actually in use, and a load component is provided to apply a simulated load force to the antenna, thereby restoring the force condition of the antenna when actually in use. In the load component, a roller, a pull rope and a counterweight block are used to apply the load force to the antenna, and a hydraulic lifting mechanism is provided to support the counterweight block. The size of the supporting force of the hydraulic lifting mechanism is adjusted, and the load force applied to the antenna by the counterweight block can be statically or dynamically adjusted, thereby realistically simulating the load condition of the antenna when in use and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the antenna side wind load in the prior art;

[0026] Figure 2 This is a schematic diagram of the overall structure of the test device for simulating antenna load from one perspective of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall structure of the test device for simulating antenna load of the utility model from another perspective;

[0028] Figure 4 The utility model is a structural diagram of the antenna and the antenna holding pole assembly.

[0029] Explanation of the reference numerals in the specification: 1. Antenna bracket; 11. Antenna pole; 12. Mounting accessories; 21. Load supporting pole; 22. Load bracket; 23. Roller; 24. Pull rope; 25. Counterweight; 26. Hydraulic lifting mechanism; 3. Antenna; 4. Load-bearing plate. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0031] As shown above, refer to Figure 1 As shown, in the conventional communication base station antenna simulated wind load test, a horizontal antenna mast 11 is generally used. The antenna 3 is mounted on the antenna mast 11 via a mounting accessory 12. Sand bags equivalent to the wind load are placed on three sides of the mast according to the test requirements for testing. This test device has the following disadvantages:

[0032] 1) This method is quite different from the actual installation and use of antenna 3;

[0033] 2) Load F is stacked with sand bags, which cannot ensure uniform force on the sides of antenna 3;

[0034] 3) When the antenna 3 is placed on its side, the deflection caused by the weight of the antenna 3 mounting accessory 12 and the antenna 3 cannot be completely eliminated;

[0035] 4) Rotation on the pole caused by the weight of the antenna 3 and the mounting accessories 12.

[0036] The above-mentioned drawbacks and the problems they caused were mixed into the experiment, resulting in deviations in the final results of the experiment.

[0037] To solve the above problems, refer to Figure 2 As shown, the present invention provides a test device for simulating antenna load, comprising: an antenna bracket 1 and a load assembly 2, wherein: the antenna bracket 1 is used to support and fix the antenna 3, and can simulate the position and angle of the antenna 3 when it is actually used; the load assembly 2 is arranged on one side of the antenna bracket 1, and is used to apply a simulated load force to the antenna 3;

[0038] The load assembly 2 includes: a load supporting pole 21, a load bracket 22 arranged on the load supporting pole 21, a roller 23 arranged on the load bracket 22, a pull rope 24 sleeved on the roller 23, a counterweight 25 connected to the pull rope 24, and a hydraulic lifting mechanism 26 supporting the counterweight 25, wherein: one end of the pull rope 24 is connected to the counterweight 25, and the other end is connected to the antenna 3, the counterweight 25 applies a load to the antenna 3 through the pull rope 24, and the hydraulic lifting mechanism 26 can dynamically or statically support the counterweight 25, thereby achieving the purpose of statically or dynamically adjusting the load force applied by the counterweight 25 on the antenna 3, and can truly simulate the load conditions when the antenna 3 is in use, thereby improving the accuracy of the test results.

[0039] Specifically, during actual use, the hydraulic lifting mechanism 26 can be set to provide a constant supporting force for the counterweight block 25, which can simulate the static load of the antenna 3, and the size of the supporting force can be adjusted according to the actual load requirements; the size of the supporting force provided by the hydraulic lifting mechanism 26 for the counterweight block 25 can also be adjusted, for example: within a certain period of time, the hydraulic lifting mechanism 26 is cyclically set from separation from the mounting block to completely lifting the counterweight block 25, and then the hydraulic lifting mechanism 26 is separated from the mounting block, which can simulate the dynamic load of the antenna 3.

[0040] In this embodiment, the pull rope 24 is sleeved outside the antenna 3, that is, the load force applied by the counterweight 25 acts on the side of the antenna 3 away from the load assembly 2. In order to ensure that the antenna 3 is evenly stressed, a force-bearing plate 4 is provided between the force-bearing surface of the antenna 3 and the pull rope 24. The load force applied by the counterweight 25 acts on the force-bearing plate 4 and is then evenly transmitted to the antenna 3 through the force-bearing plate 4, ensuring that the side of the antenna 3 is evenly stressed and avoiding uneven stress on the side of the antenna 3.

[0041] When the load-bearing plate 4 is actually assembled, the load-bearing plate 4 is set to be in close contact with the side of the antenna 3, and the load-bearing plate 4 is set to have a multi-bending structure to meet the required rigidity requirements.

[0042] During actual use, several rivets are pressed into the outer plane of the load-bearing plate 4 to prevent the pull rope 24 from sliding up and down during the test.

[0043] Reference Figure 3 As shown, in order to apply loads at multiple positions of the antenna 3 and simulate actual conditions, during actual testing, multiple rollers 23 may be provided on the load bracket 22. The multiple rollers 23 are distributed in the vertical direction to form a roller 23 group. A pull rope 24 is sleeved on each of the rollers 23. The multiple pull ropes 24 are connected to different positions on the antenna 3. The multiple pull ropes 24 are connected to the same counterweight 25. For example, in this embodiment, three rollers 23 are provided, which are respectively connected to the upper, middle and lower parts of the antenna 3 through the pull ropes 24. In other embodiments, for the accuracy of the test, more rollers 23 may be provided to ensure that load force can be applied at various positions of the antenna 3.

[0044] Moreover, in this embodiment, a plurality of roller groups 23 are arranged in the horizontal direction on the load bracket 22. The plurality of roller groups 23 can connect a plurality of antennas 3 of different models. For example, for multiple antennas 3, a plurality of roller groups 23 are required to jointly apply pressure on different branches of the antenna 3. Expanding and adding a plurality of roller groups 23 in the horizontal direction can improve the scope of application of the test device of the present application.

[0045] Reference Figure 4 As shown, the antenna bracket 1 includes: an antenna pole 11 and a mounting accessory 12, one end of the mounting accessory 12 is connected to the antenna pole 11, and the other end of the mounting accessory 12 is connected to the antenna 3. In order to simulate the actual installation angle of the antenna 3, in this embodiment, the mounting accessory 12 is provided with two mounting arms, one of which is fixedly connected between the antenna pole 11 and the antenna 3, and the other mounting arm is telescopically connected between the antenna pole 11 and the antenna 3. The distance between the antenna pole 11 and the antenna 3 can be adjusted, thereby tilting the antenna 3 and adjusting the azimuth angle of the antenna 3 relative to the horizontal plane, thereby simulating the installation positions of different antennas 3.

[0046] Specifically, in order to fix the antenna mast 11 , the antenna mast 11 and the load supporting mast 21 are connected via a cross bar, thereby enhancing the overall supporting strength between the antenna mast 11 and the load supporting mast 21 .

[0047] During the actual test, the distance between the antenna pole 11 and the load supporting pole 21 is set to 1-2 m to ensure that the antenna 3 has a sufficiently large tilting space.

[0048] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A test device for simulating antenna load, characterized in that: include: Antenna bracket, used to support the actual use state of the simulated antenna; A load assembly is provided on one side of the antenna support and is used to apply a simulated load force to the antenna. The load assembly includes: Load supporting pole; A load bracket is provided on the load supporting pole; A roller is provided on the load support; a pull rope, sleeved on the roller, one end of the pull rope being connected to the antenna; a counterweight block connected to the other end of the pull rope, wherein the counterweight block applies a load to the antenna through the pull rope; The hydraulic lifting mechanism supports the counterweight block and can statically or dynamically adjust the load force applied by the counterweight block on the antenna.

2. The test device for simulating antenna load according to claim 1, characterized in that: The hydraulic lifting mechanism is arranged to provide a constant supporting force for the counterweight block, which can simulate the static load of the antenna.

3. The test device for simulating antenna load according to claim 1, characterized in that: By adjusting the supporting force provided by the hydraulic lifting mechanism to the counterweight block, the dynamic load of the antenna can be simulated.

4. The test device for simulating antenna load according to claim 1, characterized in that: A plurality of rollers are provided on the load bracket, and the plurality of rollers are distributed in the vertical direction to form a roller group. A pull rope is sleeved on each of the rollers, and the plurality of pull ropes are connected to different positions on the antenna, and the plurality of pull ropes are connected to the same counterweight block.

5. The test device for simulating antenna load according to claim 4, characterized in that: On the load bracket, a plurality of roller groups are arranged in the horizontal direction, and the plurality of roller groups can be connected to a variety of antennas of different models.

6. The test device for simulating antenna load according to claim 4, characterized in that: A force-bearing flat plate is provided on the force-bearing surfaces of the antenna and the pull rope.

7. The test device for simulating antenna load according to claim 1, characterized in that: The antenna bracket includes: an antenna pole and a mounting accessory, one end of the mounting accessory is connected to the antenna pole, and the other end of the mounting accessory is connected to the antenna.

8. The test device for simulating antenna load according to claim 7, characterized in that: The mounting accessory includes two mounting arms, one of which is fixedly connected between the antenna pole and the antenna, and the other is telescopically connected between the antenna pole and the antenna to adjust the distance between the antenna pole and the antenna.

9. The test device for simulating antenna load according to claim 7, characterized in that: The antenna pole and the load supporting pole are connected via a cross bar.

10. The test device for simulating antenna load according to claim 7, characterized in that: The distance between the antenna pole and the load supporting pole is 1 to 2 meters.

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