A waveguide horn antenna

Abstract

The utility model discloses a waveguide horn antenna, which relates to the technical field of horn antennas, including a horn antenna body and a plurality of inserts. The outer wall of the horn antenna body is provided with a plurality of protective structures, the protective structures including a protective plate and a plurality of buffer springs, the protective plate is movably provided on the outer wall of the horn antenna body, and the plurality of buffer springs are used to buffer the collision of the protective plate with the outer wall of the horn antenna body. The utility model prevents the outer wall of the horn antenna body from being directly impacted by the outside through the coordinated arrangement of the protective structure and the mounting structure, thereby improving the safety of the horn antenna body, extending the service life of the horn antenna, and reducing the use cost of the horn antenna. At the same time, when the protective plate is disassembled and assembled, the insert can be installed by using the mounting structure, which provides convenience for the disassembly and assembly of the insert in the horn antenna body, effectively improving the diversity of the use of the horn antenna, and further enhancing the practicality of the horn antenna.

Description

Technical Field

[0001] The utility model relates to the technical field of horn antennas, in particular to a waveguide horn antenna. Background Art

[0002] A horn antenna is a microwave antenna with a circular or rectangular cross-section that gradually opens at the end of a waveguide tube. The radiation field of a horn antenna is determined by the aperture size and propagation type of the horn. When the length of the horn remains unchanged, the aperture size and the quadratic phase difference will increase with the increase of the horn opening angle, but the gain will not change with the aperture size. If the frequency band of the horn needs to be expanded, the reflection at the horn neck and aperture needs to be reduced, and the reflection will decrease as the aperture size increases.

[0003] When the horn antenna is in use, the size of the aperture can be changed by installing the plug-in while keeping the length unchanged, so that it can be applied to a variety of environments. However, most of the plug-ins are welded and fixed to the horn antenna, and it is difficult to disassemble and assemble the plug-in. At the same time, when the existing horn antenna is used or placed, it is directly installed or placed in the external environment, so that the outer wall of the horn antenna is directly exposed to the outside, so that the outer wall is easily damaged due to collision during the use or placement of the horn antenna, which can easily affect the normal use of the horn antenna, increase the cost of repairing or replacing the horn antenna, and reduce the safety of the use of the horn antenna. Therefore, in order to solve the above problems, a waveguide horn antenna is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a waveguide horn antenna to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waveguide horn antenna, comprising a horn antenna body and a plurality of inserts, wherein the plurality of inserts are symmetrically arranged in the inner cavity of the horn antenna body;

[0006] The outer wall of the horn antenna body is provided with a plurality of protective structures, and the protective structures include:

[0007] A protective plate, the protective plate is movably arranged on the outer wall of the horn antenna body, and the protective plate is used to protect the outer wall of the horn antenna body;

[0008] A plurality of buffer springs are fixedly arranged between the protective plate and the horn antenna body, and the plurality of buffer springs are used to buffer the collision of the protective plate with the outer wall of the horn antenna body.

[0009] Preferably, the protective structure further comprises:

[0010] A through slot, the through slot being provided on the end surface of the protective plate facing the horn antenna body, the through slot being connected to the end surface of the protective plate away from the horn antenna body;

[0011] A support rod is fixedly arranged on the outer wall of the horn antenna body facing the protective plate, and the support rod is movably interlaced with the inner cavity of the through slot.

[0012] Preferably, a mounting structure is provided between the protective plate and the insert, the mounting structure comprising a mounting rod and a mounting groove, the mounting groove is opened on the inner wall of the horn antenna body, and the mounting rod is fixedly provided between the protective plate and the insert.

[0013] Preferably, a through hole is formed at the top end of the support rod, a positioning rod is inserted and connected to the inner cavity of the through hole, and the positioning rod is T-shaped.

[0014] Preferably, the mounting structure further comprises a buffer pad, the buffer pad is fixedly disposed in the inner cavity of the mounting groove, and the buffer pad is in a concave shape.

[0015] Preferably, the buffer spring is movably sleeved on the outer wall of the support rod, and there is a spacing between the edges of adjacent protective plates.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model prevents the outer wall of the horn antenna body from being directly impacted by the outside through the coordinated arrangement of the protective structure and the mounting structure, thereby improving the safety of the horn antenna body, extending the service life of the horn antenna, and reducing the use cost of the horn antenna. At the same time, when the protective plate is disassembled and assembled, the mounting structure can be used to install the plug-in, which provides convenience for the disassembly and assembly of the plug-in in the horn antenna body, effectively improving the diversity of the use of the horn antenna, and further enhancing the practicality of the horn antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 For this utility model Figure 1 A is an enlarged structural diagram of FIG.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the support rod and the buffer spring of the utility model.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the installation groove and the buffer pad of the utility model.

[0022] In the figure: 1. Horn antenna body; 2. Insert; 3. Protective structure; 301. Protective plate; 302. Support rod; 303. Through slot; 304. Buffer spring; 305. Positioning rod; 4. Mounting structure; 401. Mounting rod; 402. Mounting slot; 403. Buffer pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-4 A waveguide horn antenna shown includes a horn antenna body 1 and a plurality of inserts 2, wherein the plurality of inserts 2 are symmetrically arranged in the inner cavity of the horn antenna body 1;

[0025] First, the outer wall of the horn antenna body 1 is provided with multiple protective structures 3, and the protective structures 3 include a protective plate 301 and a plurality of buffer springs 304. The protective plate 301 is movably arranged on the outer wall of the horn antenna body 1, and the protective plate 301 is used to protect the outer wall of the horn antenna body 1. The plurality of buffer springs 304 are all fixedly arranged between the protective plate 301 and the horn antenna body 1. The buffer springs 304 are movably sleeved on the outer wall of the support rod 302, and there is a gap between the edges of adjacent protective plates 301. The plurality of buffer springs 304 are all used to buffer the collision of the protective plate 301 with the outer wall of the horn antenna body 1.

[0026] Secondly, if Figure 1As shown in , the number of protective plates 301 varies according to the shape of the end face of the outer wall of the horn antenna body 1. For example, in the present embodiment, the opening of the horn antenna body 1 is rectangular, so that the horn antenna body 1 derives four end faces, and thus the number of protective plates 301 is four. If the opening of the horn antenna body 1 is circular, then the number of protective plates 301 is two, which are relatively arranged along the end of the outer wall of the horn antenna body 1, so that when the protective plates 301 are hit, the semicircular end faces can be used to provide movement space, thereby protecting the circular opening horn antenna body 1, thereby extending the service life of the horn antenna body 1 and reducing its use cost, and adjacent protective plates The space between 301 is set to ensure that the protective plates 301 do not collide with each other when they are hit. Therefore, the distance reserved between the sides of the protective plates 301 provides convenience for the movement of the protective plates 301. In summary, the protective plates 301 are set on the outer wall of the horn antenna body 1 through the support of the buffer spring 304, so that the outer wall of the horn antenna body 1 is prevented from being directly hit, and the protective plates 301 that are hit can also use the elastic properties of the buffer spring 304 to alleviate the collision force, thereby reducing the force on the protective plates 301 and improving the effectiveness of the use of the protective plates 301. At the same time, the service life of the protective plates 301 can also be extended, and the cost of protecting the horn antenna body 1 can be reduced.

[0027] Next, the protective structure 3 also includes a through slot 303 and a support rod 302. The through slot 303 is opened on the end face of the protective plate 301 facing the horn antenna body 1. The through slot 303 is connected to the end face of the protective plate 301 away from the horn antenna body 1. The support rod 302 is fixedly arranged on the outer wall of the horn antenna body 1 facing the protective plate 301. The support rod 302 and the inner cavity of the through slot 303 are movably interlaced. A through hole is opened at the top of the support rod 302. The inner cavity of the through hole is interlaced with a positioning rod 305, and the positioning rod 305 is T-shaped.

[0028] Further, such as Figure 2 and Figure 3As shown in the figure, the support rod 302 is inserted and arranged inside the buffer spring 304. The support rod 302 cooperates with the setting of the through slot 303, so that the protective plate 301 can be relatively stably installed on the outer wall of the horn antenna body 1, avoiding the phenomenon of falling due to the support of the buffer spring 304, thereby ensuring the effectiveness of the installation of the protective plate 301. At the same time, when the protective plate 301 is subjected to collision force, the protective plate 301 can also be squeezed toward the buffer spring 304 along the outer wall of the support rod 302, thereby ensuring the effectiveness of the buffering direction. After the support rod 302 is inserted and connected with the through slot 303, the outer wall of the end of the protective plate 301 is exposed to limit the position of the protective plate 301 through the insertion of the positioning rod 305 and the through hole, thereby avoiding the protective plate 301 from easily falling off the support rod 302. Under the setting of the positioning rod 305, the stability of the installation of the protective plate 301 is enhanced.

[0029] Furthermore, a mounting structure 4 is provided between the protective plate 301 and the insert 2, and the mounting structure 4 includes a mounting rod 401 and a mounting groove 402, the mounting groove 402 is opened on the inner wall of the horn antenna body 1, the mounting rod 401 is fixedly provided between the protective plate 301 and the insert 2, and the mounting structure 4 also includes a buffer pad 403, the buffer pad 403 is fixedly provided in the inner cavity of the mounting groove 402, and the buffer pad 403 is concave.

[0030] Finally, if Figure 2 and Figure 4As shown in the figure, the mounting rod 401 is L-shaped, so that the two ends are connected and fixed to the protective plate 301 and the plug 2 respectively. The installation slot 402 provides space for the disassembly and assembly of the plug 2. The plug 2 is installed in the inner cavity of the horn antenna body 1 along with the installation of the protective plate 301. When installing the plug 2, the plug 2 is first moved along the inner cavity of the mounting slot 402 into the inner cavity of the horn antenna body 1. During this process, the end surface of the plug 2 facing the mounting slot 402 is close to the inner cavity of the buffer pad 403, ensuring that there is a certain space between the protective plate 301 and the support rod 302. After the movement is completed, the protective plate 301 is moved toward the end surface of the horn antenna body 1, so that the through-slot 303 opened on the protective plate 301 is inserted and connected with the corresponding support rod 302. At this time The end surface of the plug 2 facing the installation groove 402 will move in the opposite direction of the inner cavity of the installation groove 402. Because the installation groove 402 and the buffer pad 403 reserve space for the plug 2 to move, the end surface of the plug 2 will still be interspersed with the inner cavity of the buffer pad 403 after moving. Therefore, after the positioning rod 305 is installed on the support rod 302, the installation of the protective plate 301 and the plug 2 can be completed. When the protective plate 301 is moved by collision, the plug 2 will move in the inner cavity of the buffer pad 403, but will not move out of the buffer pad 403, thereby ensuring the effectiveness of the use of the plug 2. Furthermore, the plug 2 can be installed while the protective structure 3 is installed, which provides convenience for the installation of the plug 2 and also provides safety for the use of the horn antenna body 1.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waveguide horn antenna, comprising a horn antenna body (1) and a plurality of inserts (2), wherein the plurality of inserts (2) are symmetrically arranged in the inner cavity of the horn antenna body (1); It is characterized in that The outer wall of the horn antenna body (1) is provided with a plurality of protective structures (3), and the protective structures (3) include: A protective plate (301), the protective plate (301) being movably arranged on the outer wall of the horn antenna body (1), and the protective plate (301) being used to protect the outer wall of the horn antenna body (1); A plurality of buffer springs (304), wherein the plurality of buffer springs (304) are fixedly arranged between the protective plate (301) and the horn antenna body (1), and the plurality of buffer springs (304) are used to buffer the collision of the protective plate (301) with the outer wall of the horn antenna body (1).

2. A waveguide horn antenna according to claim 1, characterized in that: The protective structure (3) further comprises: A through slot (303), the through slot (303) being arranged on the end surface of the protective plate (301) facing the horn antenna body (1), the through slot (303) being in communication with the end surface of the protective plate (301) away from the horn antenna body (1); A support rod (302), wherein the support rod (302) is fixedly arranged on the outer wall of the horn antenna body (1) facing the protective plate (301), and the support rod (302) is movably interlaced with the inner cavity of the through slot (303).

3. A waveguide horn antenna according to claim 1, characterized in that: A mounting structure (4) is provided between the protective plate (301) and the insert (2), the mounting structure (4) comprising a mounting rod (401) and a mounting groove (402), the mounting groove (402) being provided on the inner wall of the horn antenna body (1), and the mounting rod (401) being fixedly provided between the protective plate (301) and the insert (2).

4. A waveguide horn antenna according to claim 2, characterized in that: A through hole is formed at the top end of the support rod (302), and a positioning rod (305) is inserted into the inner cavity of the through hole, and the positioning rod (305) is T-shaped.

5. A waveguide horn antenna according to claim 3, characterized in that: The mounting structure (4) further comprises a buffer pad (403), wherein the buffer pad (403) is fixedly arranged in the inner cavity of the mounting groove (402), and the buffer pad (403) is in a concave shape.

6. The waveguide horn antenna according to claim 1, characterized in that: The buffer spring (304) is movably sleeved on the outer wall of the support rod (302), and there is a gap between the edges of adjacent protection plates (301).

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