Shockproof support for instruments in an anechoic chamber

Abstract

The utility model relates to a support equipment technical field in anechoic chamber instrument equipment, especially a shockproof support stand in anechoic chamber instrument equipment, including the support component for supporting and the shockproof component for shockproof buffer, the support component includes the stand, the support platform located above the stand, the first hydraulic rod in the inner chamber of stand and the connecting plate at the first hydraulic rod output, the shockproof component includes the damper located the support platform bottom both sides, the utility model discloses the synergic cooperation of setting up the support component and shockproof component has realized to the multistage absorption, dissipation and isolation of vibration energy, when the vibration or impact is conducted to the stand base through ground, first hydraulic rod absorbs part low frequency vibration energy by its hydraulic damping characteristic, and connecting rod passes through rigid connection steady integral structure, avoids the integral instability due to partial vibration amplification.

Description

Technical Field

[0001] This utility model relates to the technical field of support equipment for instruments and equipment in anechoic chambers, and in particular to a shockproof bracket for instruments and equipment in anechoic chambers. Background Technology

[0002] As the core environment for electromagnetic compatibility (EMC) and radio frequency testing, the anechoic chamber requires its internal instruments and equipment to meet the requirements of high precision, anti-interference and multi-scenario testing. The core test instruments mainly include signal generators and power amplifiers, spectrum analyzers, measurement receivers, network analyzers and antenna systems, etc. These devices are usually placed on support frames in the anechoic chamber.

[0003] Current support frames typically employ a rigid structural design, lacking effective shock absorption and buffering mechanisms. When vibration or external impact occurs, the support frame cannot effectively absorb and disperse energy, easily transmitting the vibration directly to the instrument, thus adversely affecting the instrument's stability and accuracy, and further interfering with the accuracy and reliability of darkroom testing.

[0004] Therefore, this utility model proposes a shockproof support for instruments and equipment in an anechoic chamber, aiming to solve the problem of insufficient shockproof performance of existing support frames for instruments and equipment in anechoic chambers. It ensures that energy can be quickly absorbed and dispersed when vibration or external impact occurs, effectively reducing the direct impact of vibration on the instruments and equipment, thereby ensuring the stability and accuracy of the instruments and improving the accuracy and reliability of testing in the anechoic chamber. Utility Model Content

[0005] To overcome the problem of insufficient shock resistance of existing support frames for instruments and equipment in anechoic chambers.

[0006] The technical solution of this utility model is as follows: a shockproof bracket for instruments and equipment in an anechoic chamber, comprising a support assembly for support and a shockproof assembly for shock absorption. The support assembly includes a column, a support platform located above the column, a first hydraulic rod located in the inner cavity of the column, and a connecting plate located at the output end of the first hydraulic rod. The shockproof assembly includes dampers located on both sides of the bottom of the support platform, a second hydraulic rod located around the bottom of the support platform, an end cap located at the output end of the second hydraulic rod, and a spring sleeved on the output end of the second hydraulic rod.

[0007] Preferably, vibration or impact is transmitted to the column base through the ground. The first hydraulic rod absorbs part of the low-frequency energy using hydraulic damping and allows for height adjustment. The connecting rod stabilizes the structure and prevents vibration amplification. Horizontal vibration is mainly dissipated by the damper through viscous shear, while vertical vibration is handled by the second hydraulic rod and spring in tandem. The adjusting nut can optimize the spring stiffness to match the load and frequency. After multiple stages of absorption, dissipation, and isolation, the residual vibration energy transmitted to the support platform and sensed by the instrument has been significantly attenuated and its spectrum has been changed, thereby protecting the instrument from ground vibration, equipment operation vibration, and impact interference, and ensuring the accuracy of electromagnetic testing in the darkroom.

[0008] Preferably, the column is provided in four sets, and each column cavity is fixedly connected to a first hydraulic rod.

[0009] Preferably, the output end of the first hydraulic rod is fixedly connected to the connecting plate, and the connecting plate is threadedly connected to the bottom of the support platform by bolts.

[0010] Preferably, a connecting rod is provided between the columns, and the two ends of the connecting rod are fixedly connected to the columns.

[0011] Preferably, the shock-absorbing assembly further includes an adjusting nut located on the surface of the second hydraulic rod, an external thread formed on the surface of the second hydraulic rod, and a support for supporting the damper.

[0012] Preferably, both ends of the damper are movably connected to the support seats via movable pins, and the support seats at both ends of the damper are fixedly connected to the connecting rod and the support platform, respectively.

[0013] Preferably, the tail end of the second hydraulic rod is movably connected to the connecting rod via a movable pin, the output end of the second hydraulic rod is fixedly connected to the end cover, the two ends of the spring are in contact with the end cover and the adjusting nut respectively, the adjusting nut is engaged with the external thread, and the end cover is movably connected to the bottom of the support platform via a movable pin.

[0014] The beneficial effects of this utility model are as follows: Through the coordinated operation of the support components and the shock-absorbing components, multi-level absorption, dissipation, and isolation of vibration energy are achieved. When vibration or impact is transmitted from the ground to the column base, the first hydraulic rod absorbs part of the low-frequency vibration energy due to its hydraulic damping characteristics. The connecting rod stabilizes the overall structure through rigid connection, avoiding overall instability caused by amplification of local vibration. The horizontal vibration energy is dissipated by the damper through the viscous shear effect. The two ends of the damper are connected to the support seat through movable pins, enabling it to flexibly cope with vibration input from different directions. The vertical vibration is buffered by the composite structure composed of the second hydraulic rod and the spring. The second hydraulic rod provides the initial buffer force, and the spring further absorbs the residual energy through elastic deformation. After the action of the multi-level damping mechanism, the vibration energy finally transmitted to the support platform has been greatly attenuated, thereby effectively protecting the instruments and equipment from interference from ground vibration, equipment operation vibration, and external impact, ensuring the accuracy and reliability of electromagnetic testing in the anechoic chamber, and effectively solving the problem of insufficient shock absorption performance of traditional rigid support frames. Attached Figure Description

[0015] Figure 1 The diagram shown is a front view of the present invention.

[0016] Figure 2 The diagram shown is a side view of the present invention.

[0017] Figure 3 The diagram shown illustrates the connection structure between the support component and the shock-absorbing component of this utility model.

[0018] Figure 4 This utility model is shown. Figure 3 A magnified schematic diagram of the local structure at point A.

[0019] Explanation of reference numerals in the attached drawings: 100, support assembly; 110, column; 120, support platform; 130, first hydraulic rod; 140, connecting plate; 150, connecting rod; 200, shock-absorbing assembly; 210, damper; 220, second hydraulic rod; 230, end cap; 240, spring; 250, adjusting nut; 260, external thread; 270, support base. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] Please see Figures 1 to 4This utility model provides an embodiment: a shockproof bracket for instruments and equipment in an anechoic chamber, including a support assembly 100 for support and a shockproof assembly 200 for shock absorption. The support assembly 100 includes a column 110, a support platform 120 located above the column 110, a first hydraulic rod 130 located inside the cavity of the column 110, and a connecting plate 140 located at the output end of the first hydraulic rod 130. The shockproof assembly 200 includes dampers 210 located on both sides of the bottom of the support platform 120, second hydraulic rods 220 located around the bottom of the support platform 120, an end cap 230 located at the output end of the second hydraulic rod 220, and a connecting plate 230 sleeved on the second hydraulic rod 220. The spring 240 at the output end of the rod 220 is provided in four sets on the column 110, and a first hydraulic rod 130 is fixedly connected to the inner cavity of each column 110. The output end of the first hydraulic rod 130 is fixedly connected to the connecting plate 140. The connecting plate 140 is threadedly connected to the bottom of the support platform 120 by bolts. The tail end of the second hydraulic rod 220 is movably connected to the connecting rod 150 by a movable pin. The output end of the second hydraulic rod 220 is fixedly connected to the end cover 230. The two ends of the spring 240 are in contact with the end cover 230 and the adjusting nut 250 respectively. The adjusting nut 250 is engaged with the external thread 260. The end cover 230 is movably connected to the bottom of the support platform 120 by a movable pin.

[0023] When the instruments and equipment in the anechoic chamber are placed on the anti-vibration bracket during operation, the support component 100 first plays its role, and the column 110 firmly supports the entire structure, providing basic support for the instruments and equipment. The first hydraulic rod 130 located in the inner cavity of the column 110 can be extended and retracted according to actual needs, and the support platform 120 is moved up and down through the connecting plate 140, thereby adjusting the height of the instruments and equipment to adapt to different usage scenarios.

[0024] The shock-absorbing component 200 performs its shock-absorbing and buffering function. When the instrument is subjected to vibration or impact, the dampers 210 located on both sides of the bottom of the support platform 120 will respond quickly to absorb and disperse part of the vibration energy, reducing the direct impact of vibration on the instrument. The second hydraulic rod 220 located around the bottom of the support platform 120 will also work in coordination. The end cap 230 at its output end, under the action of the spring 240, further buffers and absorbs the remaining vibration energy. The two ends of the spring 240 are in contact with the end cap 230 and the adjusting nut 250, respectively. By adjusting the position of the adjusting nut 250 on the external thread 260, the preload of the spring 240 can be adjusted, thereby changing the shock-absorbing effect to adapt to instruments with different weights and vibration characteristics.

[0025] In addition, the tail end of the second hydraulic rod 220 is movably connected to the connecting rod 150 via a movable pin. This design allows the shock-absorbing component 200 to have a certain amount of room to move when subjected to vibration, avoiding stress concentration and damage caused by rigid connection. The end cap 230 is also movably connected to the bottom of the support platform 120 via a movable pin, further enhancing the flexibility and adaptability of the entire shock-absorbing bracket.

[0026] Example 2

[0027] Please see Figures 1 to 4 The difference from Embodiment 1 is that a connecting rod 150 is provided between the columns 110, and the two ends of the connecting rod 150 are fixedly connected to the columns 110. The shock-absorbing component 200 also includes an adjusting nut 250 located on the surface of the second hydraulic rod 220, an external thread 260 opened on the surface of the second hydraulic rod 220, and a support seat 270 for supporting the damper 210. Both ends of the damper 210 are movably connected to the support seat 270 through movable pins. The support seats 270 at both ends of the damper 210 are fixedly connected to the connecting rod 150 and the support platform 120, respectively.

[0028] When the instruments and equipment vibrate on the support platform 120 during operation, the damper 210 will take effect first. Its connection to the support base 270 via a movable pin allows the damper 210 to flexibly adapt to forces generated in all directions, effectively absorbing and dissipating vibration energy and reducing vibration transmission. Simultaneously, the second hydraulic rod 220 will also adjust its extension and retraction according to the vibration. Through the interaction of the external thread 260 and the adjusting nut 250, the extension and retraction of the second hydraulic rod 220 can be precisely controlled, thereby accurately regulating the vibration amplitude of the support platform 120. The spring 240 plays an auxiliary buffering role. During the extension and retraction of the second hydraulic rod 220, the spring 240 further absorbs vibration energy through its elastic deformation, making the overall vibration damping effect of the anti-vibration bracket more stable and reliable. The connecting rod 150 connects the column 110 into a whole, enhancing the structural stability of the entire anti-vibration bracket and ensuring that all components work together during vibration, providing excellent vibration protection for the instruments and equipment in the anechoic chamber.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A shockproof bracket for instruments and equipment in an anechoic chamber, comprising a support assembly (100) for support and a shockproof assembly (200) for shock absorption, characterized in that: The support assembly (100) includes a column (110), a support platform (120) located above the column (110), a first hydraulic rod (130) located in the inner cavity of the column (110), and a connecting plate (140) located at the output end of the first hydraulic rod (130). The shock-absorbing assembly (200) includes dampers (210) located on both sides of the bottom of the support platform (120), a second hydraulic rod (220) located around the bottom of the support platform (120), an end cap (230) located at the output end of the second hydraulic rod (220), and a spring (240) sleeved on the output end of the second hydraulic rod (220).

2. The anti-vibration bracket for instruments and equipment in an anechoic chamber according to claim 1, characterized in that: The column (110) is provided in four sets, and each column (110) is fixedly connected to a first hydraulic rod (130) in its inner cavity.

3. The anti-vibration bracket for instruments and equipment in an anechoic chamber according to claim 1, characterized in that: The output end of the first hydraulic rod (130) is fixedly connected to the connecting plate (140), and the connecting plate (140) is threadedly connected to the bottom of the support platform (120) by bolts.

4. The anti-vibration bracket for instruments and equipment in an anechoic chamber according to claim 1, characterized in that: A connecting rod (150) is provided between the columns (110), and the two ends of the connecting rod (150) are fixedly connected to the columns (110).

5. The anti-vibration bracket for instruments and equipment in an anechoic chamber according to claim 1, characterized in that: The shock-absorbing assembly (200) also includes an adjusting nut (250) located on the surface of the second hydraulic rod (220), an external thread (260) formed on the surface of the second hydraulic rod (220), and a support base (270) for supporting the damper (210).

6. The anti-vibration bracket for instruments and equipment in an anechoic chamber according to claim 5, characterized in that: Both ends of the damper (210) are movably connected to the support base (270) via movable pins. The support bases (270) at both ends of the damper (210) are fixedly connected to the connecting rod (150) and the support platform (120) respectively.

7. The anti-vibration bracket for instruments and equipment in an anechoic chamber according to claim 1, characterized in that: The tail end of the second hydraulic rod (220) is movably connected to the connecting rod (150) via a movable pin. The output end of the second hydraulic rod (220) is fixedly connected to the end cover (230). The two ends of the spring (240) are in contact with the end cover (230) and the adjusting nut (250) respectively. The adjusting nut (250) is engaged with the external thread (260). The end cover (230) is movably connected to the bottom of the support platform (120) via a movable pin.

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