Field intensity probe connecting mechanism

By designing a field strength probe connection mechanism with components such as a limiting base and a rotating shaft bracket, the problems of cumbersome installation and multi-dimensional measurement in existing technologies have been solved. This enables stable installation in the reverberation chamber and rapid probe replacement, improving the flexibility and accuracy of measurements.

CN224137346UActive Publication Date: 2026-04-17威凯(上海)检测技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
威凯(上海)检测技术有限公司
Filing Date
2025-04-28
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing field strength probe connection mechanisms are cumbersome to install, bulky, and difficult to adapt to the compact environment of a reverberation chamber. They also cannot meet the needs of multi-dimensional measurement, thus reducing measurement efficiency and accuracy.

Method used

A connection mechanism including a limiting base, a rotating shaft frame, a connecting rod, a housing, and a moving structure was designed. Through components such as a clamping seat, a locking structure, and a servo motor, it enables diverse installation, angle adjustment, and horizontal movement, improving flexibility and precision.

Benefits of technology

It enables stable installation in the reverberation chamber, precise angle adjustment, and quick probe replacement, improving the applicability, accuracy, and efficiency of measurements while reducing human error.

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Abstract

The utility model discloses a field intensity probe connecting mechanism which comprises a limiting base, a rotating shaft frame used for angle adjustment is arranged on the top of the limiting base, a connecting rod is connected to the rotating shaft frame, the limiting base is provided with a clamping structure used for limiting the rotating shaft frame, and the upper end of the connecting rod is connected with a box body. According to the field intensity probe connecting mechanism, the operation flexibility of the connecting mechanism is further enhanced through the horizontal moving function of the connecting mechanism. The servo motor is started to drive the threaded rotating shaft to rotate, so that the sliding sleeve moves, and the mounting block and the probe are driven to perform horizontal movement detection. The automatic horizontal movement mode not only improves the measurement efficiency, but also reduces errors caused by manual operation, and ensures the stability and consistency of measurement data.
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Description

Technical Field

[0001] This utility model relates to the field of field strength probe technology, specifically to a field strength probe connection mechanism. Background Technology

[0002] A reverberation chamber is a specialized laboratory environment for electromagnetic compatibility (EMC) testing. The rotation of a stirrer ensures a uniform and isotropic electromagnetic field distribution within the chamber, providing a stable electromagnetic testing environment for the testing equipment. When measuring field strength in a reverberation chamber, the installation and fixing method of the field strength probe is crucial to the accuracy and reliability of the measurement results.

[0003] However, the testing environment in the reverberation chamber has strict requirements on the installation position and angle of the probe. Existing connection mechanisms usually require complex fixing devices, and the installation process is cumbersome and time-consuming. In addition, due to the limited space in the reverberation chamber, the traditional connection mechanism is large in size and difficult to adapt to the compact testing environment.

[0004] In reverberation chamber testing, the field strength probe needs to be adjusted in position and angle according to different testing requirements. However, existing connection mechanisms can usually only achieve adjustment in a single direction, which cannot meet the needs of multi-dimensional measurement. This makes measurement operations in complex environments difficult and reduces measurement efficiency.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing connection mechanisms. Utility Model Content

[0006] This utility model addresses the problem that existing technical solutions are too simplistic by providing a field strength probe connection mechanism that is significantly different from existing technologies, thereby solving the problems mentioned in the background.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a field strength probe connection mechanism, including a limiting base, a rotating shaft frame for angle adjustment at the top of the limiting base, a connecting rod connected to the rotating shaft frame, and a locking structure for limiting the rotating shaft frame. The upper end of the connecting rod is connected to a box, and a moving structure for horizontal movement is installed inside the box. An installation block is connected to the moving structure, and a probe is inserted into the installation block. A locking structure is provided between the installation block and the probe.

[0008] Preferably, the limiting base includes a clamping seat, a screw, and a clamping block. The clamping seat is configured with a concave structure, and the top of the clamping seat is threadedly connected to the screw, and the lower end of the screw is rotatably connected to the clamping block inside the clamping seat.

[0009] Preferably, the locking structure includes a cylinder, a return spring, a plug, and a full gear. The cylinder is connected to the outer side of the limiting base, and the return spring is connected to the inside of the cylinder. The plug is connected to the end of the return spring. The upper end of the plug penetrates the top of the cylinder and is engaged with the full gear. The full gear is connected to the end of the rotating shaft of the rotating shaft frame. One end of the plug penetrates the outer wall of the cylinder.

[0010] Preferably, the moving structure includes a servo motor, a threaded shaft, and a sliding sleeve. The threaded shaft is connected inside the housing, and the end of the threaded shaft passes through the outer wall of the housing and is connected to the servo motor for driving. The outer wall of the threaded shaft is threadedly connected to the sliding sleeve, and the end of the sliding sleeve passes through the top of the housing and is connected to the mounting block.

[0011] Preferably, the mounting block is configured with a concave cross-section, and the mounting block is viewed from above as a U-shaped structure.

[0012] Preferably, the locking structure includes a sliding groove, a connecting spring, a locking block, a locking groove, and a pull rod. Sliding grooves are provided on both sides of the inner wall of the mounting block, and a connecting spring is connected in each sliding groove. A locking block is connected to the end of each connecting spring. One end of each locking block is located in a corresponding locking groove, and the locking groove is opened on the outer wall of the probe. A pull rod penetrating the outer wall of the mounting block is connected to the other end of each locking block.

[0013] Preferably, the card block is configured with an inclined structure on the lower side of the inner end of the card slot.

[0014] Compared with the prior art, the beneficial effects of this utility model are: depending on the usage environment, the user can choose to position the clamping seat on the edge of the table and push the clamping block with the rotating screw to assist in clamping, so as to achieve a stable installation; or the limiting base can be directly placed on the table for installation. This diversified installation method greatly improves the applicability and flexibility of the connection mechanism, enabling it to adapt to various different testing scenarios and environmental requirements.

[0015] In terms of angle adjustment, this connecting mechanism exhibits exceptional convenience and stability. By pressing the insert block on the outside of the cylinder to disengage it from the full gear, the user can easily rotate the connecting rod on the rotating shaft frame, thereby adjusting the angle of the housing, mounting block, and probe. After adjustment, releasing the insert block allows it to re-engage with the full gear under the push of the return spring, thus limiting the rotation of the shaft frame. This process is not only simple to operate but also ensures the accuracy and stability of angle adjustment, meeting the angle requirements of different testing needs and improving the accuracy and reliability of measurements.

[0016] Furthermore, the horizontal movement function of the connecting mechanism further enhances its operational flexibility. Starting the servo motor drives the threaded shaft to rotate, causing the sliding sleeve to move, which in turn moves the mounting block and probe to perform horizontal movement detection. This automated horizontal movement method not only improves measurement efficiency but also reduces errors caused by human operation, ensuring the stability and consistency of measurement data.

[0017] The connection mechanism also demonstrates significant ease of use in probe replacement and removal. By pulling the levers on both sides of the mounting block outwards, the locking block disengages from the probe's slot, allowing the user to quickly remove the probe from the mounting block. To install a new probe, simply insert it into the mounting block; the bottom of the probe contacts the inclined surface of the locking block, pressing the block into the groove, where the connecting spring compresses. As the probe continues to be inserted, when the probe's slot is parallel to the locking block, the connecting spring pushes the locking block into the groove, quickly locking the probe. This rapid replacement and removal mechanism significantly saves operation time and improves work efficiency, especially in testing scenarios requiring frequent probe replacements. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a frontal cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic cross-sectional view of the card slot structure of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the locking structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the box body of this utility model.

[0023] In the diagram: 1. Limiting base; 101. Clamping seat; 102. Screw; 103. Clamping block; 2. Rotary shaft frame; 3. Connecting rod; 4. Locking structure; 401. Cylinder; 402. Return spring; 403. Insertion block; 404. Full gear; 5. Box; 6. Moving structure; 601. Servo motor; 602. Threaded rotating shaft; 603. Sliding sleeve; 7. Mounting block; 8. Probe; 9. Locking structure; 901. Slide groove; 902. Connecting spring; 903. Locking block; 904. Locking groove; 905. Pull rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a field strength probe connection mechanism, including a limiting base 1, a clamping seat 101, a screw 102, a clamping block 103, a rotating shaft frame 2, a connecting rod 3, a locking structure 4, a cylinder 401, a return spring 402, an insert block 403, a full gear 404, a box 5, a moving structure 6, a servo motor 601, a threaded rotating shaft 602, a sliding sleeve 603, a mounting block 7, a probe 8, a locking structure 9, a sliding groove 901, and a connecting spring 902. The limiting base 1 has a locking block 903, a locking slot 904, and a pull rod 905. The top of the limiting base 1 is provided with a rotating shaft frame 2 for angle adjustment, and a connecting rod 3 is connected to the rotating shaft frame 2. The limiting base 1 is also provided with a locking structure 4 for limiting the rotating shaft frame 2. The upper end of the connecting rod 3 is connected to a box 5, and a moving structure 6 for horizontal movement is installed inside the box 5. An installation block 7 is connected to the moving structure 6, and a probe 8 is inserted into the installation block 7. A locking structure 9 is provided between the installation block 7 and the probe 8.

[0026] The limiting base 1 includes a clamping seat 101, a screw 102, and a clamping block 103. The clamping seat 101 is configured with a concave structure, and the top of the clamping seat 101 is threadedly connected to the screw 102. The lower end of the screw 102 is rotatably connected to the clamping block 103 inside the clamping seat 101.

[0027] The locking structure 4 includes a cylinder 401, a reset spring 402, a plug 403, and a full gear 404. The cylinder 401 is connected to the outside of the limiting base 1, and the reset spring 402 is connected inside the cylinder 401. The plug 403 is connected to the end of the reset spring 402. The upper end of the plug 403 penetrates the top of the cylinder 401 and is engaged with the full gear 404. The full gear 404 is connected to the end of the rotating shaft of the rotating shaft frame 2. One end of the plug 403 penetrates the outer wall of the cylinder 401.

[0028] The moving structure 6 includes a servo motor 601, a threaded shaft 602, and a sliding sleeve 603. The threaded shaft 602 is connected inside the housing 5, and the end of the threaded shaft 602 passes through the outer wall of the housing 5 and is connected to the servo motor 601 for driving. The sliding sleeve 603 is threadedly connected to the outer wall of the threaded shaft 602, and the end of the sliding sleeve 603 passes through the top of the housing 5 and is connected to the mounting block 7.

[0029] Mounting block 7 is designed with a concave cross-section, and its top view is a U-shaped structure.

[0030] The locking structure 9 includes a slide groove 901, a connecting spring 902, a locking block 903, a slot 904, and a pull rod 905. The inner walls of the mounting block 7 are provided with slide grooves 901 on both sides, and each slide groove 901 is connected to a connecting spring 902. Each connecting spring 902 is connected to a locking block 903 at its end. One end of each locking block 903 is located in the corresponding slot 904, and the slot 904 is opened on the outer wall of the probe 8. The other end of each locking block 903 is connected to a pull rod 905 that penetrates the outer wall of the mounting block 7.

[0031] The card block 903 is located on the lower side of the inner end of the card slot 904 and is set as an inclined structure.

[0032] Working principle: According to Figure 1 As shown, depending on the installation requirements of the usage environment, when it is necessary to clamp it on the desktop, the clamping base 101 is positioned on the edge of the table, and the clamping block 103 is pushed by rotating the screw 102 to assist in clamping, or the limiting base 1 is placed directly on the desktop for installation.

[0033] In use, according to the required angle, press the end of the insert 403 on the outside of the cylinder 401. The insert 403 moves into the cylinder 401, and the return spring 402 is compressed, thereby disengaging the end of the insert 403 from the full gear 404. Then, push the connecting rod 3 to rotate on the rotating shaft frame 2, driving the box 5, the mounting block 7 and the probe 8 on it to adjust the angle. Then, release the insert 403. Under the push of the return spring 402, the end of the insert 403 re-engages with the full gear 404, limiting the rotation shaft frame 2.

[0034] The servo motor 601 is started, driving the threaded shaft 602 to rotate, causing the sliding sleeve 603 on it to move. This moves the mounting block 7 and the probe 8 horizontally for detection. When the probe 8 needs to be replaced or removed, the pull rods 905 on both sides of the mounting block 7 are pulled outward, causing the locking block 903 to disengage from the locking slot 904 on the probe 8. The probe 8 can then be quickly removed from the mounting block 7. When the new probe 8 is inserted into the mounting block 7, the bottom of the probe 8 contacts the inclined surface of the locking block 903, pressing the locking block 903 into the sliding groove 901. The connecting spring 902 is compressed. As the probe 8 continues to be inserted into the mounting block 7, when the locking slot 904 on the probe 8 is parallel to the locking block 903, the connecting spring 902 in the sliding groove 901 pushes the locking block 903 into the locking slot 904, quickly limiting the probe 8. This is the working principle of the field strength probe connection mechanism.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A field strength probe connection mechanism, comprising a limiting base (1), a clamping seat (101), a screw (102), a clamping block (103), a rotating shaft frame (2), a connecting rod (3), a locking structure (4), a cylinder (401), a return spring (402), an insert block (403), a full gear (404), a box body (5), a moving structure (6), a servo motor (601), a threaded rotating shaft (602), a sliding sleeve (603), a mounting block (7), a probe (8), a locking structure (9), a sliding groove (901), a connecting spring (902), a locking block (903), a locking groove (904), and a pull rod (905), characterized in that: The top of the limiting base (1) is provided with a rotating shaft frame (2) for angle adjustment, and a connecting rod (3) is connected to the rotating shaft frame (2). The limiting base (1) is provided with a locking structure (4) for limiting the rotating shaft frame (2). The upper end of the connecting rod (3) is connected to a box (5), and a moving structure (6) for horizontal movement is installed inside the box (5). An installation block (7) is connected to the moving structure (6). A probe (8) is inserted into the installation block (7), and a locking structure (9) is provided between the installation block (7) and the probe (8).

2. A field intensity probe connection mechanism according to claim 1, characterized in that: The limiting base (1) includes a clamping seat (101), a screw (102), and a clamping block (103). The clamping seat (101) is configured with a concave structure, and the top of the clamping seat (101) is threadedly connected to the screw (102), and the lower end of the screw (102) is rotatably connected to the clamping block (103) inside the clamping seat (101).

3. A field intensity probe connection mechanism according to claim 1, characterized in that: The locking structure (4) includes a cylinder (401), a reset spring (402), a plug (403), and a full gear (404). The cylinder (401) is connected to the outside of the limiting base (1), and the reset spring (402) is connected inside the cylinder (401). The plug (403) is connected to the end of the reset spring (402). The upper end of the plug (403) penetrates the top of the cylinder (401) and is engaged with the full gear (404). The full gear (404) is connected to the end of the rotating shaft of the rotating shaft frame (2). One end of the plug (403) penetrates the outer wall of the cylinder (401).

4. A field intensity probe connection mechanism according to claim 1, characterized in that: The moving structure (6) includes a servo motor (601), a threaded shaft (602), and a sliding sleeve (603). The threaded shaft (602) is connected inside the box (5), and the end of the threaded shaft (602) passes through the outer wall of the box (5) and is connected to the servo motor (601) for driving. The outer wall of the threaded shaft (602) is threadedly connected to the sliding sleeve (603), and the end of the sliding sleeve (603) passes through the top of the box (5) and is connected to the mounting block (7).

5. A field intensity probe connection mechanism according to claim 1, wherein: The mounting block (7) is configured with a concave cross-section and a U-shaped top view.

6. A field intensity probe connection mechanism according to claim 1, characterized in that: The locking structure (9) includes a slide groove (901), a connecting spring (902), a locking block (903), a slot (904), and a pull rod (905). The inner wall of the mounting block (7) is provided with slide grooves (901) on both sides, and each slide groove (901) is connected to a connecting spring (902). Each connecting spring (902) is connected to a locking block (903) at its end. One end of each locking block (903) is located in the corresponding slot (904), and the slot (904) is opened on the outer wall of the probe (8). The other end of each locking block (903) is connected to a pull rod (905) that penetrates the outer wall of the mounting block (7).

7. A field strength probe connection mechanism according to claim 6, characterised in that: The card block (903) is located on the lower side of the inner end of the card slot (904) and is configured as an inclined structure.