Compact range feed source mounting structure

Abstract

The utility model relates to the technical field of feed source installation, in particular to a compact range feed source installation structure which comprises an installation base, a clamping piece and a locking piece, the installation base is of a cylindrical structure with at least one open end, the inner wall of the installation base is provided with a dovetail-shaped guide rail groove extending in the axial direction, the clamping piece is used for clamping and fixing a feed source body, and the locking piece is used for locking the clamping piece. The feed source main body is provided with a dovetail-shaped guide rail groove, the clamping piece is slidably connected to the interior of the mounting base through the dovetail-shaped guide rail groove and used for driving the feed source main body to perform axial position adjustment, and the clamping piece is used for clamping and fixing the feed source main body, so that the stability of the feed source main body is kept after the feed source main body is clamped and fixed through the clamping piece; after the fixing of the clamping piece is released through the locking piece, the axial position adjustment of the feed source main body can be realized by adjusting the position of the clamping piece in the mounting base, and the disassembly and assembly of the feed source main body do not need to be frequently released, so that the feed source is more convenient and quicker.

Description

Technical Field

[0001] This utility model relates to the field of feed installation technology, and in particular to a compact field feed installation structure. Background Technology

[0002] In the field of modern electromagnetic measurement, the compact field, with its ability to simulate the far-field test environment in a limited space, has become a key facility for research such as antenna performance testing and radar cross section measurement. The compact field emits spherical waves through the feed and converts them into plane waves through the reflector, providing a stable electromagnetic environment for testing. Therefore, the installation accuracy of the feed directly determines the accuracy and reliability of the test results.

[0003] Currently, bolt-fastened clamps are commonly used to fix the feed waveguide. This involves clamping the waveguide with a clamp that matches its shape, and then tightening the bolts to secure the clamp. When adjusting the axial position of the waveguide by adjusting the feed focus, the bolts must be loosened to release the clamp before the waveguide can be moved. However, existing clamps often use bolt fastening for better clamping stability. This requires tightening multiple bolts individually with tools during installation and loosening them sequentially during disassembly, making the process cumbersome and time-consuming. This is especially problematic in scenarios where frequent feed changes or adjustments are needed, significantly impacting work efficiency. Furthermore, direct operation can cause the waveguide to scratch or collide with surrounding components, potentially leading to surface scratches and deformation, affecting its performance and lifespan.

[0004] Based on the above situation, we propose a compact field feed installation structure to solve the above problems. Utility Model Content

[0005] This invention provides a compact field feed installation structure to solve the problems existing in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A compact field feed installation structure includes a mounting base, a clamping member, and a locking member. The mounting base is a cylindrical structure with at least one open end, and its inner wall is provided with a dovetail-shaped guide groove extending along the axial direction. The clamping member is used to clamp and fix the feed body, and the clamping member is slidably connected to the inside of the mounting base through the dovetail-shaped guide groove, and is used to drive the feed body to adjust its axial position.

[0008] Preferably, the clamping member includes a connecting member and two jaws movably connected to the connecting member, and the two jaws are arranged opposite each other with respect to the centerline of the connecting member. The lower ends of the two jaws are provided with extensions, and the two extensions are detachably connected by bolts.

[0009] Preferably, the locking element includes a locking rod threaded to the upper end of the connecting member and a locking plate disposed on the locking rod. When the locking rod drives the locking plate to abut against the mounting base, the clamping element is fixed.

[0010] Preferably, the inner walls of both grippers are provided with elastic anti-slip pads.

[0011] Preferably, the inner wall of the mounting base is provided with a guide groove arranged along its axial direction, and the clamping member is connected with a guide rod that can be slidably connected to the guide groove.

[0012] Preferably, the open end of the guide groove is provided with a flared portion.

[0013] The beneficial effects of this utility model are: after the feed source body is clamped and fixed by the clamping member, the stability of the feed source body is maintained. After the clamping member is released by the locking member, the axial position of the feed source body can be adjusted by adjusting the position of the clamping member in the mounting base. This eliminates the need for frequent disassembly and assembly of the feed source body, making it more convenient and faster. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main body of the feeder in this utility model installed in the mounting base;

[0016] Figure 2 This is a schematic diagram of the clamping component clamping the feed source body in this utility model;

[0017] Figure 3 A three-dimensional schematic diagram of the clamping component provided by this utility model;

[0018] Figure 4 A cross-sectional structural schematic diagram provided for this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the mounting base in this utility model.

[0020] In the figure, 1 is the mounting base; 11 is the dovetail guide rail groove; 2 is the clamping component; 21 is the connecting component; 22 is the gripper; 23 is the extension; 3 is the feed body; 4 is the locking component; 41 is the locking rod; 42 is the locking plate; 5 is the elastic anti-slip pad; 6 is the guide groove; 61 is the guide connecting rod; and 62 is the flared part. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0022] Reference Figures 1-5 As shown, a compact field feed installation structure includes a mounting base 1, which is a cylindrical structure with at least one open end. A dovetail-shaped guide groove 11 is formed on the inner wall of the mounting base 1 along its axial extension direction. A clamping member 2 for clamping and fixing the feed body 3 is slidably connected inside the mounting base 1 through the dovetail-shaped guide groove 11, used to drive the feed body 3 to adjust its axial position. When installing the feed body 3, the clamping member 2 can be removed from the dovetail-shaped guide groove 11 first. Then, the feed body 3 is clamped and fixed by the clamping member 2 and then installed into the mounting base 1. When it is necessary to adjust the axial position of the feed body 3, it is only necessary to move the position of the clamping member 2 to adjust the position of the feed body 3. There is no need to frequently disassemble and reassemble the feed body 3, which is more convenient and faster. At the same time, it further reduces the possibility of damage to the feed body 3 during position adjustment. In order to fix the feed body 3 after the position is adjusted, a locking member 4 is also provided at the upper end of the clamping member 2.

[0023] Reference Figure 3 As shown, the clamping member 2 further includes a connecting member 21 and two grippers 22 movably connected to the connecting member 21. The two grippers 22 are arranged opposite each other with respect to the centerline of the connecting member 21. The lower ends of the two grippers 22 are provided with extensions 23, and the two extensions 23 are detachably connected by bolts. When it is necessary to install the feed source body 3, first loosen the bolts between the extensions 23 of the two grippers 22 to open the grippers 22, place the feed source body 3 between the two grippers 22, and adjust the feed source to a suitable position. Since the clamp 22 and the connecting member 21 are hinged, the clamp 22 can be rotated to fit against the feed surface. Then, the bolts are passed through the through holes of the extensions 23 of the two clamps 22 in sequence, and the bolts are tightened with a wrench. The tightening force of the bolts makes the two clamps 22 firmly hold the feed. Then, the clamping member 2 and the feed body 3 are installed together into the mounting base 1. When it is necessary to adjust the axial position of the feed body 3, the position of the feed body 3 can be adjusted simply by moving the clamping member 2, which is more convenient and faster.

[0024] Reference Figure 4 As shown, the locking member 4 further includes a locking rod 41 threaded to the upper end of the connecting member 21 and a locking plate 42 disposed on the locking rod 41. When the locking rod 41 drives the locking plate 42 to tightly abut against the mounting base 1, the clamping member 2 is fixed. Conversely, when the locking rod 41 is rotated in the opposite direction, causing the locking rod 41 to drive the locking plate 42 to move away from the mounting base 1, the locking plate 42 disengages from the mounting base 1, and the clamping member 2 can slide, thus releasing the position lock of the clamping member 2.

[0025] Reference Figure 3 As shown, furthermore, the inner walls of both grippers 22 are provided with elastic anti-slip pads 5. The elastic anti-slip pads 5 can be made of materials such as rubber or silicone that have both good elastic deformation ability and can ensure a certain support strength. When installing the feed body 3, the two grippers 22 gradually close, and the elastic anti-slip pads 5 first come into contact with the feed surface. Due to the good elasticity of silicone rubber, the elastic anti-slip pads 5 will undergo elastic deformation as the grippers 22 tighten, closely conforming to the curved contour of the feed, enhancing the anti-slip effect, and effectively preventing the feed body 3 from shifting due to factors such as vibration and electromagnetic force during the test.

[0026] Reference Figure 5 As shown, the inner wall of the mounting base 1 is provided with a guide groove 6 arranged along its axial direction. The clamping member 2 is connected with a guide rod 61 that can be slidably connected to the guide groove 6. When the clamping member 2 is installed inside the mounting base 1, the guide rod 61 can slide in the guide groove 6. When the clamping member 2 is adjusted in axial position, it can guide the clamping member 2 and limit the clamping member 2 on both sides through the guide rod 61, reducing the possibility of the clamping member 2 causing the feed source body 3 to sway left and right, and making the installation stability of the feed source body 3 better.

[0027] The guide groove 6 has a flared end 62 at its opening. The flared end 62 can be in the shape of an "eight". When the clamping part 2 is installed into the mounting base 1, the wide entrance of the flared end 62 forms a clear visual guide, allowing the installation position to be found quickly without precise alignment, which facilitates the guide rod 61 to enter the guide groove 6.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A compact field feed installation structure, characterized in that, include; Mounting base (1), the mounting base (1) is a cylindrical structure with at least one end open, and its inner wall is provided with a dovetail-shaped guide groove (11) extending along the axial direction. Clamping member (2), the clamping member (2) is used to clamp and fix the feed body (3), and the clamping member (2) is slidably connected to the inside of the mounting base (1) through the dovetail guide groove (11) to drive the feed body (3) to adjust the axial position; Locking member (4) is installed on the upper end of clamping member (2) and is used to fix the clamping member (2) with the axial position adjusted on the mounting base (1).

2. The compact field feed installation structure according to claim 1, characterized in that, The clamping member (2) includes a connecting member (21) and two jaws (22) movably connected to the connecting member (21). The two jaws (22) are arranged opposite each other with respect to the center line of the connecting member (21). The lower ends of the two jaws (22) are provided with extensions (23), and the two extensions (23) are detachably connected by bolts.

3. The compact field feed installation structure according to claim 2, characterized in that, The locking member (4) includes a locking rod (41) threaded to the upper end of the connecting member (21) and a locking plate (42) provided on the locking rod (41). When the locking rod (41) drives the locking plate (42) to abut against the mounting base (1), the clamping member (2) is fixed.

4. The compact field feed installation structure according to claim 2, characterized in that, Both grippers (22) have elastic anti-slip pads (5) on their inner walls.

5. The compact field feed installation structure according to claim 1, characterized in that, The inner wall of the mounting base (1) is provided with a guide groove (6) arranged along its axial direction, and the clamping member (2) is connected with a guide rod (61) that can be slidably connected with the guide groove (6).

6. The compact field feed installation structure according to claim 5, characterized in that, The guide groove (6) has a flared end (62).

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