Low-scattering metal support

Abstract

The utility model discloses a low-scattering metal support, and relates to the technical field of RCS testing. Comprising a supporting assembly arranged at the upper end of a supporting plate and used for radar cross section testing; the angle adjusting assembly is arranged at the bottom end of the supporting plate and used for adjusting the angle of the supporting assembly, and the supporting assembly sequentially comprises a first supporting body fixedly connected to the upper end of the supporting plate from bottom to top; the second supporting body is arranged at the upper end of the first supporting body, the third supporting body and the upper end of the second supporting body; and the first supporting body is arranged at the upper end of the third supporting body. The first supporting body, the second supporting body, the third supporting body and the fourth supporting body are all of oval table structures and are all made of metal materials. An adjusting groove of a cuboid structure is formed in the middle of the bottom plate. The angle adjusting assembly comprises a motor which is arranged at the foremost end of the adjusting groove; the threaded rod is rotationally connected with the motor; the threaded rod is sleeved with the threaded sleeve, and the threaded sleeve is sleeved with an n-shaped connecting base; and the adjusting rod is obliquely arranged and is connected with the connecting seat and the supporting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of RCS testing, in particular to a low-scattering metal bracket. Background Art

[0002] RCS, or radar cross section, is a physical quantity that characterizes the scattering of incident radar waves by a target. It is a core indicator in target stealth and target detection. Conventional RCS test methods include far-field test, compact field test, and near-field test. Regardless of the test method, high requirements are placed on the target support and installation method. The bracket must meet the strength requirements and ensure that its own scattering intensity is low so as not to affect the test background.

[0003] For large targets, the installation is usually completed in the form of "support rod + suspension". This method has high requirements for control accuracy and can often only be used for a specific target, so it has poor applicability. Commonly used metal brackets are expensive and have poor flexibility. Low-scatter metal brackets are one of the important components of the target support system of the ground static test field, mainly used to support multi-dimensional turntables and targets under test. In recent years, more and more test fields have been built, and cost budgets have become more and more stringent. Considering space requirements and saving related costs, the requirements for the transportation and positioning devices of low-scatter metal brackets are also more stringent.

[0004] For example, in a Chinese patent with patent number CN 114740443 A, a low-scattering foam bracket for target radar scattering characteristic testing is disclosed, which belongs to the field of RCS test technology, including a foam support platform, a foam support seat, a first foam support body, a second foam support body and a third foam support body. The first foam support body includes a first large support body and a first small support body detachably connected to the first large support body. The second foam support body includes two detachably connected second support blocks, and the two second support blocks are symmetrically arranged along a horizontal line. The third foam support body includes two detachably connected third support blocks, and the two third support blocks are symmetrically arranged along a horizontal line. The first large support body is located above the foam support seat and is connected to the foam support seat by mortise and tenon joints.

[0005] However, the low-scattering foam bracket used for target radar scattering characteristic testing in the above patent still has the following defects:

[0006] 1. The support block used is in the shape of a truncated cone, which has insufficient support force and reduces the weight it can support.

[0007] 2. The mounting base at the bottom cannot adjust the angle, and it is inconvenient for the staff to adjust the upper support block when using it. Utility Model Content

[0008] To solve the above problems, we urgently need to design a low-scattering metal bracket to overcome the above defects.

[0009] To achieve the above object, the technical idea of the present utility model is as follows:

[0010] A structure for adjusting the angle of the support plate is provided on the support base, so that when the staff uses it, the angle of the support plate can be adjusted more conveniently and quickly, and it is driven by a motor, so that no excessive operation is required during use, and the whole operation process has high convenience.

[0011] To achieve the above object, the present utility model adopts the following technical solutions:

[0012] A low-scattering metal bracket, including a bottom plate and a support plate, further includes;

[0013] A support assembly, arranged at the upper end of the support plate, for radar cross-section measurement;

[0014] An angle adjustment assembly, arranged at the bottom end of the support plate, for adjusting the angle of the support assembly.

[0015] Further, the support assembly successively includes a first support body from bottom to top, fixedly connected to the upper end of the support plate; a second support body, arranged at the upper end of the first support body, a third support body, at the upper end of the second support body; a first support body, arranged at the upper end of the third support body.

[0016] Further, the first support body, the second support body, the third support body and the fourth support body are all frustum-of-ellipse structures and are all made of metal materials.

[0017] Further, a rectangular parallelepiped-shaped adjustment groove is opened in the middle of the bottom plate.

[0018] Further, the angle adjustment assembly includes a motor, arranged at the front end of the adjustment groove;

[0019] A threaded rod, rotatably connected to the motor;

[0020] A threaded sleeve, sleeved outside the threaded rod, and a "冂"-shaped connecting seat is sleeved on the threaded sleeve; an adjusting rod, obliquely arranged, one end is connected to the connecting seat, and the other end is connected to the support plate.

[0021] The beneficial effects of the present utility model are:

[0022] (1) The support force of the frustum-of-ellipse-shaped support is relatively large, and the weight of the object that can be supported will be higher than that of the frustum-of-cone-shaped support.

[0023] (2) Since the surface of the frustum-of-ellipse-shaped support has a large contact area with the object, it has good support stability. Description of the Drawings

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 This is the overall structural diagram of a low-scattering metal bracket of the utility model;

[0026] Figure 2 yes Figure 1 The main view of

[0027] Figure 3 yes Figure 2 Structural diagram of the midsole plate and support plate;

[0028] Figure 4 yes Figure 3 A top view of

[0029] Figure 5 yes Figure 1 Isometric view of the mid-adjustment assembly;

[0030] Figure 6 yes Figure 5 Structural diagram from another angle.

[0031] In the figure: 1. Base plate; 101. Adjustment slot; 102. Fixing ring; 2. Support plate; 201. Rotation shaft; 202. Adjustment rod; 3. First support body; 4. Second support body; 5. Third support body; 6. Fourth support body; 7. Motor; 8. Threaded rod; 801. Threaded sleeve; 9. Connecting seat; 901. Bolt; 902. Nut. DETAILED DESCRIPTION

[0032] The exemplary embodiments disclosed in the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments disclosed in the present utility model are shown in the accompanying drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. Example

[0033] like Figures 1 to 6 As shown, an embodiment of the utility model provides a low-scattering metal bracket, including a base plate 1 and a support plate 2. The base plate 1 is a rectangular parallelepiped structure, and universal wheels are provided at the four corners of the bottom to facilitate the movement and fixation of the entire bracket.

[0034] On the left and right sides of the front end of the bottom plate 1, there are fixed rings 102. A rotating shaft 201 is sleeved in the fixed rings 102. The fixed rings 102 are of circular ring structure and are fixedly connected to the bottom plate 1 at the bottom. The rotating shaft 201 is rotatably connected to the fixed rings 102. At the same time, the rear end of the rotating shaft 201 is fixedly connected to a support plate 2. The support plate 2 is of cuboid structure, and an angle adjustment component is arranged at the front end of the support plate 2.

[0035] The angle adjustment component includes an adjustment rod 202, a threaded rod 8, a threaded sleeve 801 and a connecting seat 9. A cuboid-shaped adjustment groove 101 is opened in the middle of the bottom plate 1, and the front end of the adjustment groove 101 is located at the bottom of the rear end of the support plate 2. A motor 7 is arranged at the foremost end of the adjustment groove 101. The rear end of the motor 7 is rotatably connected to a threaded rod 8. A threaded sleeve 801 is sleeved on the threaded rod 8. The threaded sleeve 801 is of circular ring shape. A "冂"-shaped connecting seat 9 is arranged on the threaded sleeve 801. Bolts 901 are arranged at the left and right ends of the threaded sleeve 801. The bolts 901 penetrate through the left and right sides of the connecting seat 9, and nuts 902 are sleeved outside the bolts 901. An adjustment rod 202 is fixedly connected to the front end of the connecting seat 9. The front end of the adjustment rod 202 is fixedly connected to the rearmost end of the support plate 2. The adjustment rod 202 is inclined.

[0036] During use, the motor 7 is remotely controlled to be turned on and off and rotated forward and backward. When the motor 7 rotates forward, it drives the threaded rod 8 to rotate forward, and the threaded sleeve 801 and the connecting seat 9 move in the direction close to the motor 7. The support plate 2 is lifted through the adjustment rod 202, and the angle between the support plate 2 and the bottom plate 1 gradually increases. When the motor 7 rotates backward, the threaded rod 8 rotates backward, and the threaded sleeve 801 and the connecting seat 9 move in the direction away from the motor 7. The support plate 2 is lowered through the adjustment rod 202, and the angle between the support plate 2 and the bottom plate 1 gradually decreases until the support plate 2 fits with the bottom plate 1.

[0037] A support component is arranged on the support plate 2. The support component includes a first support body 3, a second support body 4, a third support body 5 and a fourth support body 6. The lower end of the first support body 3 is fixedly connected to the support plate 2. The upper end of the first support body 3 is mortise-and-tenon connected to the lower end of the second support body 4. The upper end of the second support body 4 is mortise-and-tenon connected to the lower end of the third support body 5. The upper end of the third support body 5 is mortise-and-tenon connected to the fourth support body 6.

[0038] The first support body 3, the second support body 4, the third support body 5 and the fourth support body 6 are all made of metal, and the metal used is polystyrene metal. The first support body 3, the second support body 4, the third support body 5 and the fourth support body 6 are all of frustum of an elliptical cone structure. At the same time, the first support body 3, the fourth support body 6 and the third support body 5 are of the structure with a smaller upper part and a larger lower part, and the second support body 4 is of the structure with a larger upper part and a smaller lower part.

[0039] Application Case

[0040] This embodiment describes the application of the utility model in the field of RCS testing technology. The metal bracket is moved to the required position and locked by the universal wheel. During the test, the first support body, the second support body, the third support body and the fourth support body are adjusted and installed as needed to set the support assembly to the required height, and then leveling is achieved by the leveling jack. Finally, the object to be tested is placed on the metal support platform 1, and the subsequent testing work can be started.

[0041] Usage steps: When conducting RCS test, the device can be used to calculate the height of the first support 3, the second support 4, the third support 5 and the fourth support 6 according to the computer simulation software, and the support position can be flexibly adjusted by the base, and then leveled by the leveling jack. Finally, the object to be tested is placed on the support platform 1, and the subsequent test work can be started. Note: The weight that the support device can support should be simulated in advance to avoid safety accidents.

[0042] The above method can effectively solve the problem of the influence of excessive bracket scattering on the test during the RCS test process, and improve the test accuracy.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A low-scattering metal bracket, comprising a base plate (1) and a support plate (2), characterized in that: Further included are: a support assembly, arranged at the upper end of the support plate (2) and used for radar cross-section measurement. The support assembly sequentially includes a first support body (3) fixedly connected to the upper end of the support plate (2) from bottom to top, a second support body (4) arranged at the upper end of the first support body (3), a third support body (5) arranged at the upper end of the second support body (4), and a fourth support body (6) arranged at the upper end of the third support body (5); an angle adjustment assembly, arranged at the bottom end of the support plate (2) and used for adjusting the angle of the support assembly. The angle adjustment assembly includes a motor (7) arranged at the forefront of the adjustment groove (101), a threaded rod (8) rotatably connected to the motor (7), a threaded sleeve (801) sleeved on the threaded rod (8), and an adjustment rod (202). The front end of the adjustment rod (202) is fixedly connected to the rearmost end of the support plate (2), and the adjustment rod (202) is inclined.

2. A low-scattering metal bracket according to claim 1, characterized in that: The first support body (3), the second support body (4), the third support body (5), and the fourth support body (6) are all frustum of an ellipse structures.

3. The low-scattering metal bracket according to claim 1, characterized in that: An adjustment groove (101) with a cuboid structure is formed in the middle of the bottom plate (1).

4. The low-scattering metal bracket according to claim 1, characterized in that: A "冂”-shaped connecting seat (9) is sleeved on the threaded sleeve (801), and one end of the threaded sleeve (801) is connected to the connecting seat (9), and the other end is connected to the support plate (2).

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