Wall thickness simulation device for antenna strength test

Abstract

The utility model discloses a wall thickness simulation device for an antenna strength test, which comprises an electromagnetic shielding box, a sealing port is arranged in the middle of the rear end face of the electromagnetic shielding box, a plurality of wall plates are arranged above the sealing port, the shape of the outer surface of each wall plate corresponds to the shape of the inner wall of the sealing port, and the inner wall of the sealing port is provided with an opening. The thickness of the wall plate is one centimeter. The two sides of the sealing opening are each provided with a threaded rod fixed to the outer surface of the electromagnetic shielding box, one side of the outer surface of each threaded rod is sleeved with an inner threaded sleeve, the outer threads of the threaded rods are matched with the inner threads of the inner threaded sleeves, and the outer sides of the two inner threaded sleeves are provided with a metal shell connected with the inner threaded sleeves through roller bearings; the middle position of the rear end face of the metal shell is connected with a manual rotating shaft through a roller bearing. According to the utility model, the signal intensity of the antenna can be detected when the antenna penetrates through various walls with different thicknesses, so that the test range of the antenna intensity test is improved.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, specifically to a wall thickness simulation device for antenna strength testing. Background Technology

[0002] An antenna is a device used to transmit or receive radio waves. It is widely used in communications, broadcasting, radar, satellite communications, wireless networks, and other fields. The basic function of an antenna is to convert guided waves (electromagnetic waves propagating along a conductor) into free-space waves (electromagnetic waves propagating through space) or vice versa.

[0003] Antenna strength testing is a crucial step in evaluating antenna performance using various antenna testing equipment. Its main purpose is to ensure that the received or transmitted signal strength of the antenna meets expectations, thereby verifying whether the antenna performance meets design requirements. Antenna strength testing is of great significance for antenna design, optimization, and selection. Through testing, information such as the antenna's radiation characteristics and impedance matching can be obtained, providing data support for antenna design and optimization. At the same time, testing can also help selection personnel choose suitable antennas to meet specific communication needs.

[0004] However, existing antenna testing equipment cannot test the antenna's penetration power through walls, and its testing range is small; therefore, it does not meet the current needs. In response, we propose a wall thickness simulation device for antenna strength testing. Utility Model Content

[0005] The purpose of this invention is to provide a wall thickness simulation device for antenna strength testing, so as to solve the problems mentioned in the background art, such as the inability of existing antenna testing equipment to test the penetration power of antennas through walls and the small testing range.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wall thickness simulation device for antenna strength testing, comprising an electromagnetic shielding box, a sealing opening provided at the middle position of the rear end face of the electromagnetic shielding box, a plurality of wall panels provided above the sealing opening, the shape of the outer surface of the wall panels corresponding to the shape of the inner wall of the sealing opening, and the thickness of the wall panels being one centimeter.

[0007] Both sides of the sealing opening are provided with a threaded rod fixed to the outer surface of the electromagnetic shielding box. An internal thread sleeve is fitted on one side of the outer surface of the threaded rod. The external thread of the threaded rod matches the internal thread of the internal thread sleeve. A metal shell is provided on the outer side of the two internal thread sleeves and connected to them by a roller bearing. A manual rotating shaft is connected to the middle of the rear end face of the metal shell by a roller bearing. A second synchronous sprocket is fixedly fitted on both sides of the outer surface of the manual rotating shaft. A first synchronous sprocket is provided on one side of the second synchronous sprocket. The two first synchronous sprockets are respectively fixedly fitted on the outer surfaces of the two internal thread sleeves, and the first synchronous sprocket and the second synchronous sprocket are connected in series by a synchronous chain.

[0008] A suction cup is fixedly installed at the middle position of the front end face of the metal shell.

[0009] Preferably, a metal plate is fixedly provided on the rear end face of the two threaded rods, and an antenna signal strength tester is fixedly provided on both sides of the front end face of the metal plate.

[0010] Preferably, a numerical display screen is fixedly installed on the rear end face of the metal plate, and the numerical display screen is electrically connected to both of the antenna signal strength testers.

[0011] Preferably, an auxiliary rotating disk is fixedly provided at the middle position of the rear end face of the manual rotating shaft, and the manual rotating shaft and the auxiliary rotating disk are fixed together by screws.

[0012] Preferably, an L-shaped fixing bracket is fixedly provided on both sides of the front end face of the electromagnetic shielding box, and the outer surface of the L-shaped fixing bracket is provided with multiple through holes for bolt fixing, and the electromagnetic shielding box is integrally made of electromagnetic shielding material.

[0013] Preferably, a square cover plate is provided above the two synchronization chains on the upper surface of the metal casing, and the metal casing and the square cover plate are fixed together by screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, when testing the penetration power of an antenna through a wall, places the antenna to be tested inside an electromagnetic shielding box. Since the electromagnetic shielding box is made of a single piece of electromagnetic shielding material, the signal from the electromagnetic shielding box can only be transmitted through the sealed opening on the outer surface of the electromagnetic shielding box. Then, a wall panel is placed inside the sealed opening to seal it. The signal strength of the antenna inside the electromagnetic shielding box when penetrating the wall panel can then be detected using an antenna signal strength tester. When it is necessary to test the signal strength of the antenna when penetrating walls of different thicknesses, the corresponding number of wall panels can be placed behind the sealed opening. Through the above technical solution, the signal strength of the antenna when penetrating walls of various thicknesses can be detected, thereby improving the testing range of antenna strength testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the internal structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Electromagnetic shielding box; 2. Threaded rod; 3. Metal plate; 4. Antenna signal strength tester; 5. Numerical display screen; 6. Wall panel; 7. Metal casing; 8. Manual rotating shaft; 9. Internal threaded sleeve; 10. First synchronous sprocket; 11. Second synchronous sprocket; 12. Synchronous chain; 13. Fixed suction cup; 14. Sealing port; 15. L-shaped fixed bracket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] The threaded rod 2 (model M16), numerical display screen 5 (model KW), and L-shaped fixing bracket 15 (model AODLI) mentioned in this utility model can all be obtained from the market or through private customization.

[0022] Please see Figures 1 to 3 An embodiment of this utility model is provided: a wall thickness simulation device for antenna strength testing, including an electromagnetic shielding box 1, a sealing port 14 is provided at the middle position of the rear end face of the electromagnetic shielding box 1, and a plurality of wall panels 6 are provided above the sealing port 14. The shape of the outer surface of the wall panel 6 corresponds to the shape of the inner wall of the sealing port 14, and the thickness of the wall panel 6 is one centimeter.

[0023] Both sides of the sealing port 14 are provided with a threaded rod 2 fixed to the outer surface of the electromagnetic shielding box 1. One side of the outer surface of the threaded rod 2 is fitted with an internal threaded sleeve 9. The external thread of the threaded rod 2 matches the internal thread of the internal threaded sleeve 9. The outer side of the two internal threaded sleeves 9 is provided with a metal shell 7 connected to it by a roller bearing. The middle position of the rear end face of the metal shell 7 is connected to a manual rotating shaft 8 by a roller bearing. Both sides of the outer surface of the manual rotating shaft 8 are fixedly fitted with a second synchronous sprocket 11. One side of the second synchronous sprocket 11 is provided with a first synchronous sprocket 10. The two first synchronous sprockets 10 are respectively fixedly fitted with the outer surfaces of the two internal threaded sleeves 9, and the first synchronous sprocket 10 and the second synchronous sprocket 11 are connected in series by a synchronous chain 12.

[0024] A fixed suction cup 13 is fixedly installed at the middle position of the front end face of the metal casing 7. When it is necessary to test the penetration power of the antenna through the wall, the antenna to be tested is placed inside the electromagnetic shielding box 1. Since the electromagnetic shielding box 1 is made of electromagnetic shielding material in one piece, the signal of the electromagnetic shielding box 1 can only be transmitted from the sealing port 14 located on the outer surface of the electromagnetic shielding box 1. Then, a wall panel 6 is placed inside the sealing port 14 to seal the sealing port 14. After the sealing port 14 contains the wall panel 6, the manual rotating shaft 8 is rotated. As the manual rotating shaft 8 rotates, the second synchronous sprocket 11 fixedly sleeved on the outer surface of the manual rotating shaft 8 and the synchronous chain between the second synchronous sprocket 11 and the second synchronous sprocket 11 are connected by a synchronous chain. The first synchronous sprocket 10 connected in series with the 12 will rotate together. The rotating first synchronous sprocket 10 can drive the internal threaded sleeve 9 fixed inside the first synchronous sprocket 10 to rotate together. Through the thread structure between the internal threaded sleeve 9 and the threaded rod 2, the rotating internal threaded sleeve 9 can move back and forth. At this time, the internal threaded sleeve 9 is moved towards the sealing port 14. As the internal threaded sleeve 9 moves, the metal shell 7 connected to it through the roller bearing and the fixed suction cup 13 fixed to the front end of the metal shell 7 will move forward together. When the front end of the fixed suction cup 13 contacts the wall panel 6 located inside the sealing port 14 and can no longer rotate the manual rotating shaft 8, the wall panel 6 can be fixed.

[0025] A metal plate 3 is fixedly mounted on the rear end face of the two threaded rods 2. An antenna signal strength tester 4 is fixedly mounted on both sides of the front end face of the metal plate 3. A numerical display screen 5 is fixedly mounted on the rear end face of the metal plate 3, and the numerical display screen 5 is electrically connected to the two antenna signal strength testers 4. When the wall panel 6 located inside the sealing opening 14 is fixed, the antenna signal strength tester 4 can detect the signal strength of the antenna inside the electromagnetic shielding box 1 when it penetrates a wall panel 6, and display its value on the numerical display screen 5 electrically connected to it. When it is necessary to detect the signal strength of the antenna when it penetrates walls of different thicknesses, the manual rotating shaft 8 is rotated in the opposite direction to move the fixed suction cup 13 backward, thereby increasing the distance between the fixed suction cup 13 and the sealing opening 14. Then, a corresponding number of wall panels 6 are added between them, and the fixed suction cup 13 is moved forward again by rotating the manual rotating shaft 8 to fix the wall panels 6. The above technical solution can detect the signal strength of the antenna when it penetrates walls of various thicknesses, thereby improving the test range of antenna strength testing.

[0026] An auxiliary rotating disk is fixedly provided at the middle position of the rear end face of the manual rotating shaft 8, and the manual rotating shaft 8 and the auxiliary rotating disk are fixed together by screws; the manual rotating shaft 8 can be rotated more conveniently through the auxiliary rotating disk.

[0027] An L-shaped fixing bracket 15 is fixedly provided on both sides of the front end face of the electromagnetic shielding box 1. The outer surface of the L-shaped fixing bracket 15 is provided with multiple through holes for bolt fixing. The electromagnetic shielding box 1 is made of electromagnetic shielding material as a whole. The front end of the electromagnetic shielding box 1 can be fixed by the two L-shaped fixing brackets 15 to prevent the electromagnetic shielding box 1 from tilting due to too many components at the rear end of the whole equipment.

[0028] A square cover plate is provided above the two synchronous chains 12 on the upper surface of the metal housing 7, and the metal housing 7 and the square cover plate are fixed together by screws; the square cover plate can protect the internal structure of the metal housing 7, and when the internal structure of the metal housing 7 fails, the square cover plate can be removed to repair its internal structure.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wall thickness simulation device for antenna strength testing, comprising an electromagnetic shielding box (1), characterized in that: The electromagnetic shielding box (1) has a sealing opening (14) in the middle of its rear end face. Above the sealing opening (14) are multiple wall panels (6). The shape of the outer surface of the wall panel (6) corresponds to the shape of the inner wall of the sealing opening (14), and the thickness of the wall panel (6) is one centimeter. Both sides of the sealing port (14) are provided with a threaded rod (2) fixed to the outer surface of the electromagnetic shielding box (1). An internal thread sleeve (9) is sleeved on one side of the outer surface of the threaded rod (2). The external thread of the threaded rod (2) matches the internal thread of the internal thread sleeve (9). A metal shell (7) is provided on the outside of the two internal thread sleeves (9) and connected to it by a roller bearing. A manual rotating shaft (8) is connected to the middle position of the rear end face of the metal shell (7) by a roller bearing. A second synchronous sprocket (11) is fixedly sleeved on both sides of the outer surface of the manual rotating shaft (8). A first synchronous sprocket (10) is provided on one side of the second synchronous sprocket (11). The two first synchronous sprockets (10) are respectively fixedly sleeved on the outer surfaces of the two internal thread sleeves (9), and the first synchronous sprocket (10) and the second synchronous sprocket (11) are connected in series by a synchronous chain (12). A fixed suction cup (13) is fixedly provided at the middle position of the front end face of the metal shell (7).

2. The wall thickness simulation device for antenna strength testing according to claim 1, characterized in that: A metal plate (3) is fixedly provided on the rear end face of the two threaded rods (2), and an antenna signal strength tester (4) is fixedly provided on both sides of the front end face of the metal plate (3).

3. The wall thickness simulation device for antenna strength testing according to claim 2, characterized in that: A numerical display screen (5) is fixedly installed on the rear end face of the metal plate (3), and the numerical display screen (5) is electrically connected to the two antenna signal strength testers (4).

4. The wall thickness simulation device for antenna strength testing according to claim 1, characterized in that: An auxiliary rotating disk is fixedly provided at the middle position of the rear end face of the manual rotating shaft (8), and the manual rotating shaft (8) and the auxiliary rotating disk are fixed together by screws.

5. The wall thickness simulation device for antenna strength testing according to claim 1, characterized in that: The electromagnetic shielding box (1) has an L-shaped fixing bracket (15) fixed on both sides of its front end face. The outer surface of the L-shaped fixing bracket (15) has multiple through holes for bolt fixing. The electromagnetic shielding box (1) is made of electromagnetic shielding material as a whole.

6. The wall thickness simulation device for antenna strength testing according to claim 1, characterized in that: A square cover plate is provided above the two synchronous chains (12) on the upper end face of the metal shell (7), and the metal shell (7) and the square cover plate are fixed together by screws.

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