High-frequency spotlight antenna

Abstract

The utility model discloses a high-frequency spotlight antenna, which relates to the technical field of spotlight antennas and comprises a high-frequency spotlight antenna body, a second support is fixed on one side of the bottom of the high-frequency spotlight antenna body, a middle rod penetrates through the outer surface of the second support, an operating sleeve is fixed at one end of the middle rod, and a first support is connected to the bottom of the middle rod. A second friction plate is connected into the first support, and the middle rod is sleeved with a threaded sleeve. According to the utility model, through the arrangement of the first support, the second support, the clamping plate, the control sleeve, the middle rod and the screw sleeves, after the angle of the high-frequency spotlight antenna main body is adjusted by rotating the second support, the middle rod drives the screw sleeves to rotate by rotating the control sleeve; the two clamping plates are far away from each other to cooperate with the second bracket to clamp the first bracket, so that the second bracket is prevented from driving the high-frequency antenna main body to rotate subsequently through friction force, and the purpose of limiting is achieved; and the operation is simple, convenient and time-saving.

Description

Technical Field

[0001] This utility model relates to the field of spotlight antenna technology, specifically a high-frequency spotlight antenna. Background Technology

[0002] A spotlight antenna, also known as a radio frequency antenna, is a device used to receive and transmit radio frequency signals. It achieves wireless communication by converting electrical energy into electromagnetic waves. Spotlight antennas are typically made of metallic conductors and can be linear, loop, square, or other shapes. Their working principle is based on electromagnetic induction and radiation; an electromagnetic field is generated on the antenna through oscillating current, and this electromagnetic field is propagated into the surrounding space.

[0003] A wideband dual-polarized vertical wide-angle spotlight antenna, application number 202321144256.0, includes an outer cover, a reflector placed inside the outer cover, and low-frequency, intermediate-frequency, and high-frequency dipole elements disposed on the front of the reflector. The low-frequency, intermediate-frequency, and high-frequency dipole elements are arranged in a horizontal array. The spacing between the low-frequency dipoles is 0.6-0.8 wavelengths of the center frequency; the spacing between the intermediate-frequency dipoles and the spacing between the high-frequency dipoles are 0.8-0.9 wavelengths of the center frequency. This invention forms a dual-polarized vertical wide-angle spotlight antenna by forming an array of multiple dipoles in the horizontal direction, compressing the horizontal half-power lobe, and arranging single dipoles in the vertical direction to maintain the half-power lobe characteristics of a single dipole, achieving a vertical angle of 65°±10°.

[0004] Existing high-frequency spotlight antennas require angle adjustment, and most angle adjustment structures are those mentioned in the background. Figure 1 and Figure 2 The method shown involves using two bolts to slide along an arc-shaped groove to adjust the angle, and then tightening the bolts to complete the limit. This method has two drawbacks: first, both sides need to be tightened, which is cumbersome and time-consuming; second, the contact area of ​​the bolts is small, so the friction can only be increased by increasing the contact pressure, but the strength of the thread is limited. If the bolts are tightened too much, stripping can easily occur, resulting in loss of the limit. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a high-frequency spotlight antenna to solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-frequency spotlight antenna, comprising a high-frequency spotlight antenna body, a second bracket fixed to one side of the bottom of the high-frequency spotlight antenna body, a middle rod penetrating through the outer surface of the second bracket, and an operating sleeve fixed to one end of the middle rod, a first bracket connected to the bottom of the middle rod, and a second friction plate connected inside the first bracket, a screw sleeve sleeved on the outside of the middle rod, and a clamping plate connected to the top of the screw sleeve, and a first friction plate connected to the outer surface of the clamping plate.

[0007] By adopting the above technical solution, after adjusting the angle of the high-frequency spotlight antenna body by rotating the second bracket, the intermediate shaft drives the screw sleeve to rotate by rotating the operating sleeve. Since the two screw sleeves are mirror images with opposite threads, the two clamping plates move away from each other and cooperate with the second bracket to clamp the first bracket. This prevents the second bracket from driving the high-frequency antenna body to rotate through friction, thus achieving the purpose of limiting the position. While the clamping plates cooperate with the first bracket to clamp the second bracket for limiting the position, the first friction plate will contact the second friction plate, increasing the contact area and friction, thereby improving the stability of the limiting position and effectively preventing the first bracket from driving the high-frequency antenna body to rotate.

[0008] Furthermore, the second bracket is rotatably connected to the first bracket via an intermediate rod.

[0009] By adopting the above technical solution, the operator reverses the control sleeve to end the clamping and limiting of the first bracket, and then the operator can rotate the second bracket to adjust the angle of the high-frequency spotlight antenna body.

[0010] Furthermore, there are two clamping plates and two threaded sleeves, and the threads of the two threaded sleeves are opposite.

[0011] By adopting the above technical solution, the two screw sleeves are mirrored and thus have opposite threads, making the movement directions of the two clamps opposite, which facilitates simultaneous clamping and termination of clamping.

[0012] Furthermore, the clamping plate is slidably connected to the second bracket, and the two clamping plates are respectively threadedly connected to two threaded sleeves.

[0013] By adopting the above technical solution, the staff can rotate the control sleeve to make the intermediate shaft drive the screw sleeve to rotate, so that the two clamping plates move away from each other and cooperate with the second bracket to clamp the first bracket.

[0014] Furthermore, the cross-section above the outer surface of the clamping plate is U-shaped.

[0015] By adopting the above technical solution, since the upper cross section of the outer surface of the clamping plate is U-shaped, the second bracket serves as a guide rail for the clamping plate, so as to guide the clamping plate.

[0016] Furthermore, there are two of each of the first and second friction plates, and the two first and second friction plates are symmetrically distributed.

[0017] By adopting the above technical solution, the contact area is further increased by increasing the number of the first friction plate and the second friction plate, thereby increasing the friction force.

[0018] Furthermore, the first friction plate and the second friction plate abut against each other.

[0019] By adopting the above technical solution, the first friction piece will come into contact with the second friction piece, increasing the contact area and friction force, effectively preventing the first bracket from driving the high-frequency antenna body to rotate.

[0020] Furthermore, a connector is connected to the other side of the bottom of the high-frequency spotlight antenna body via a feed line, and a fixing plate is fixed to the bottom of the first bracket.

[0021] By adopting the above technical solution, the staff installed the fixing plate on the building with expansion bolts. Then, the staff connected the connector of the high-frequency spotlight antenna body to the external line through the feeder. At this time, the line connector enables the high-frequency spotlight antenna body to generate an electromagnetic field on the antenna through the oscillating current based on the principles of electromagnetic induction and radiation, and propagates this electromagnetic field into the surrounding space.

[0022] Furthermore, the outer ring of the control sleeve is provided with anti-slip particles, and the cross-section of one end of the control sleeve is hexagonal.

[0023] By adopting the above technical solution, the anti-slip particles on the surface of the screw sleeve make it easier for the operator to rotate the control sleeve, reducing the occurrence of slippage. The operator can also connect a wrench to the hexagonal end of the control sleeve and rotate the control sleeve by the wrench.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model, through the arrangement of a first bracket, a second bracket, clamping plates, an operating sleeve, an intermediate rod, and a screw sleeve, allows the second bracket to be rotated to adjust the angle of the high-frequency spotlight antenna body. Rotating the operating sleeve then causes the intermediate shaft to rotate the screw sleeve. Because the two screw sleeves are mirror images with opposite threads, the two clamping plates move away from each other, allowing the second bracket to clamp the first bracket. This friction prevents the second bracket from subsequently rotating the high-frequency antenna body, thus achieving the purpose of limiting the position. Only a single threaded structure needs to be rotated, making the operation simple, convenient, and time-saving.

[0026] 2. By setting up the first friction plate and the second friction plate, the clamping plate, while cooperating with the first bracket to clamp the second bracket for limiting position, will contact the first friction plate and the second friction plate, increasing the contact area and friction force, thereby improving the limiting stability and effectively preventing the first bracket from driving the high-frequency antenna body to rotate; increasing friction force enhances the limiting effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a side view of the present invention.

[0029] Figure 3 This is a side sectional view of the present invention.

[0030] Figure 4 This is a schematic diagram of the exploded structure of this utility model.

[0031] In the diagram: 1. High-frequency spotlight antenna body; 2. Feeder cable; 3. Connector; 4. Fixing plate; 5. First bracket; 6. Second bracket; 7. Clamping plate; 8. Control sleeve; 9. First friction plate; 10. Intermediate rod; 11. Screw sleeve; 12. Second friction plate. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of this utility model will be described below based on its overall structure.

[0034] Example 1:

[0035] A high-frequency spotlight antenna, such as Figures 1-4As shown, the antenna includes a high-frequency spotlight antenna body 1. A second bracket 6 is fixed to one side of the bottom of the high-frequency spotlight antenna body 1. The second bracket 6 is rotatably connected to the first bracket 5 via a middle rod 10. The middle rod 10 passes through the outer surface of the second bracket 6. An operating sleeve 8 is fixed to one end of the middle rod 10. The bottom of the middle rod 10 is connected to the first bracket 5. A second friction plate 12 is connected inside the first bracket 5. A screw sleeve 11 is sleeved on the outside of the middle rod 10. A clamping plate 7 is connected to the top of the screw sleeve 11. The upper cross section of the outer surface of the clamping plate 7 is U-shaped. The clamping plate 7 is slidably connected to the second bracket 6. There are two clamping plates 7 and two screw sleeves 11. The two screw sleeves 11 have opposite threads. The clamping plate 7 is threadedly connected to two screw sleeves 11. The outer surface of the clamping plate 7 is connected to a first friction plate 9. There are two of each of the first friction plate 9 and the second friction plate 12. The two first friction plates 9 and the second friction plate 12 are symmetrically distributed. The first friction plate 9 and the second friction plate 12 abut against each other. After the angle of the high-frequency spotlight antenna body 1 is adjusted by rotating the second bracket 6, the operator rotates the operating sleeve 8 to make the intermediate shaft drive the screw sleeve 11 to rotate, so that the two clamping plates 7 move away from each other and cooperate with the second bracket 6 to clamp the first bracket 5. At the same time, the first friction plate 9 will come into contact with the second friction plate 12, increasing the contact area and friction force, effectively preventing the second bracket 6 from driving the high-frequency antenna body to rotate.

[0036] See Figure 1 In the above embodiment, the other side of the bottom of the high-frequency spotlight antenna body 1 is connected to a connector 3 via a feeder 2. The bottom of the first bracket 5 is fixed with a fixing plate 4. The workers install the fixing plate 4 on the building using expansion bolts. Then, the workers connect the connector 3 of the high-frequency spotlight antenna body 1, which is connected to the external line via the feeder 2. At this time, the line connector 3 enables the high-frequency spotlight antenna body 1 to generate an electromagnetic field on the antenna through oscillating current based on the principles of electromagnetic induction and radiation, and propagate this electromagnetic field to the surrounding space.

[0037] Example 2:

[0038] Based on the above embodiment 1, the following settings are made to facilitate the rotation of the operating sleeve 8.

[0039] See Figures 1-4 In the above embodiment, the outer ring of the control sleeve 8 is provided with anti-slip particles, and the cross-section of one end of the control sleeve 8 is hexagonal. Since the surface of the screw sleeve 11 is provided with anti-slip particles, it is convenient for the operator to rotate the control sleeve 8 and reduce the occurrence of slippage. The operator can connect a wrench to the hexagonal end of the control sleeve 8 and rotate the control sleeve 8 by the wrench to make the middle rod 10 drive the two screw sleeves 11 to reverse.

[0040] The implementation principle of this utility model is as follows: First, the staff installs the fixing plate 4 on the building with expansion bolts. Then, the staff connects the connector 3 of the high-frequency spotlight antenna body 1 to the external line through the feeder 2. At this time, the line connector 3 enables the high-frequency spotlight antenna body 1 to generate an electromagnetic field on the antenna through the oscillating current based on the principles of electromagnetic induction and radiation, and propagates this electromagnetic field to the surrounding space.

[0041] When it is necessary to adjust the angle of the high-frequency spotlight antenna body 1, the operator reverses the control sleeve 8 to make the middle rod 10 drive the two screw sleeves 11 to reverse. Since the surface of the screw sleeves 11 is provided with anti-slip particles, it is easy for the operator to rotate the control sleeve 8 and reduce the occurrence of slippage. The operator can connect a wrench to the hexagonal end of the control sleeve 8 and rotate the control sleeve 8 by the wrench to make the middle rod 10 drive the two screw sleeves 11 to reverse. Then, since the two screw sleeves 11 are mirrored and their threads are opposite, the two clamping plates 7 move closer to each other and no longer cooperate with the second bracket 6 to clamp the first bracket 5. The first friction plate 9 and the second friction plate 12 separate. At this time, the operator can rotate the second bracket 6 to adjust the angle of the high-frequency spotlight antenna body 1.

[0042] After adjusting the angle of the high-frequency spotlight antenna body 1 by rotating the second bracket 6, the operator rotates the control sleeve 8 to make the intermediate shaft drive the screw sleeve 11 to rotate, so that the two clamping plates 7 move away from each other and cooperate with the second bracket 6 to clamp the first bracket 5. While the clamping plates 7 cooperate with the second bracket 6 to clamp the first bracket 5 for limiting, the first friction plate 9 will come into contact with the second friction plate 12, increasing the contact area and friction, effectively preventing the second bracket 6 from driving the high-frequency antenna body to rotate.

[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-frequency spotlight antenna, comprising a high-frequency spotlight antenna body (1), characterized in that: The high-frequency spotlight antenna body (1) has a second bracket (6) fixed on one side of its bottom. The outer surface of the second bracket (6) has a middle rod (10) through it, and one end of the middle rod (10) has an operating sleeve (8) fixed on it. The bottom of the middle rod (10) is connected to a first bracket (5), and the inside of the first bracket (5) is connected to a second friction plate (12). The outside of the middle rod (10) is fitted with a screw sleeve (11), and the top of the screw sleeve (11) is connected to a clamping plate (7), and the outer surface of the clamping plate (7) is connected to a first friction plate (9).

2. The high-frequency spotlight antenna according to claim 1, characterized in that: The second bracket (6) is rotatably connected to the first bracket (5) via the intermediate rod (10).

3. The high-frequency spotlight antenna according to claim 1, characterized in that: Two clamping plates (7) and two threaded sleeves (11) are provided, and the threads of the two threaded sleeves (11) are opposite.

4. The high-frequency spotlight antenna according to claim 3, characterized in that: The clamping plate (7) is slidably connected to the second bracket (6), and the two clamping plates (7) are threadedly connected to the two screw sleeves (11) respectively.

5. The high-frequency spotlight antenna according to claim 4, characterized in that: The upper cross section of the outer surface of the clamp (7) is U-shaped.

6. The high-frequency spotlight antenna according to claim 1, characterized in that: There are two of each of the first friction plate (9) and the second friction plate (12), and the two first friction plates (9) and the two second friction plates (12) are symmetrically distributed.

7. The high-frequency spotlight antenna according to claim 6, characterized in that: The first friction plate (9) and the second friction plate (12) abut against each other.

8. The high-frequency spotlight antenna according to claim 1, characterized in that: The other side of the bottom of the high-frequency spotlight antenna body (1) is connected to a connector (3) via a feed line (2), and a fixing plate (4) is fixed to the bottom of the first bracket (5).

9. The high-frequency spotlight antenna according to claim 1, characterized in that: The outer ring of the control sleeve (8) is provided with anti-slip particles, and the cross-section of one end of the control sleeve (8) is hexagonal.

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