A 4G-based modal tester

Abstract

This utility model relates to the field of test instrument protection technology, specifically disclosing a 4G-based modal tester, including: a 4G tester, with a support assembly movably connected to the bottom of the 4G tester. Through a second spring and a connecting cylinder, a telescopic support rod between the base plate and the first and second connecting seats is fitted with the second spring, forming an elastic buffer layer in the vertical direction. This effectively absorbs vibrations and impacts from the ground, preventing vibrations from being directly transmitted to the 4G tester. Simultaneously, a fixed block, through a first connecting shaft, a connecting rod, a second connecting shaft, and a movable block, forms a rotatable connection structure. A stabilizing rod cooperates with the connecting cylinder, along with a limiting plate and a third spring, to achieve flexible multi-angle adjustment and stable locking in the horizontal direction. Whether facing uneven ground or lateral impacts from the external environment, this device ensures the 4G tester remains stable through elastic deformation and angle adjustment, effectively reducing the risk of damage to internal precision components.

Description

Technical Field

[0001] This utility model relates to the field of test instrument protection technology, specifically a 4G-based modal tester. Background Technology

[0002] A modal analyzer is a specialized device used to analyze the dynamic characteristics of a structure. It excites the structure and collects vibration responses (such as force, acceleration, displacement, etc.). Combined with sensors and a data acquisition system, it identifies modal parameters such as the natural frequency, damping ratio, and mode shape of the object.

[0003] Traditional modal testing equipment often lacks effective vibration damping design, making it difficult to withstand the frequent vibrations and impacts in industrial environments. Ordinary devices often use rigid connections, meaning that when subjected to mechanical vibration or accidental collisions, the impact force is directly transmitted to the inside of the testing equipment, damaging precision components such as 4G antennas and circuit boards, thus affecting equipment reliability and lifespan. Therefore, we propose a 4G-based modal testing equipment. Utility Model Content

[0004] The purpose of this invention is to provide a 4G-based modal testing instrument to address the problem mentioned in the background art: traditional modal testing instruments often lack effective shock absorption design, making them unable to withstand frequent vibrations and impacts in industrial environments. Ordinary devices often use rigid connections; when encountering mechanical vibrations or accidental collisions, the impact force is directly transmitted to the inside of the testing instrument, causing damage to precision components such as 4G antennas and circuit boards, affecting the reliability and service life of the equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a 4G-based modal tester, comprising: a 4G tester, wherein a support component is movably connected to the bottom of the 4G tester; The support assembly includes a base plate, a first connecting seat fixedly connected to the bottom of the base plate, a telescopic support rod fixedly connected to the bottom of the first connecting seat, a second spring sleeved on the outer surface of the telescopic support rod, a second connecting seat fixedly connected to the bottom of the second spring, a fixing block fixedly connected to the side surface of the second connecting seat, a first connecting shaft fixedly connected to the end of the fixing block away from the second connecting seat, a connecting rod rotatably connected to the outer surface of the first connecting shaft, a second connecting shaft sleeved on the end of the connecting rod away from the first connecting shaft, movable blocks fixedly connected to both ends of the second connecting shaft, a stabilizing rod fixedly connected to the outer surface of the movable block, and a connecting cylinder movably connected to the end of the stabilizing rod away from the movable block.

[0006] The stabilizing rods are movably connected in two sets inside the two ends of the connecting cylinder. A clamping ring is fixedly connected to the outer surface of the connecting cylinder. A limit plate is fixedly connected to the outer surface of the stabilizing rods. A third spring is fixedly connected to the side surface of the limit plate. The limit plate is movably connected inside the connecting cylinder. The limit plate is fixedly connected in two sets to the two ends of the third spring.

[0007] The upper surface of the clamping ring is fixedly connected to a positioning plate, and the end of the positioning plate away from the clamping ring is fixedly connected to a fixing rod. The top end of the fixing rod is fixedly connected to the bottom of the base plate.

[0008] The fixing blocks are in two groups. One group of fixing blocks is fixedly connected to the side surface of the second connecting seat, and the other group of fixing blocks is fixedly connected to the side surface of the first connecting seat. The first connecting seat is fixedly connected in four groups at the bottom four corners of the base plate.

[0009] The base plate has movable grooves at the four corners of its upper surface. A first spring is fixedly connected to the inner wall of the movable groove. A sliding block is fixedly connected to the end of the first spring away from the inner wall of the movable groove. A clamping plate is fixedly connected to the upper surface of the sliding block.

[0010] The clamping plates are arranged in four groups and clamped on the outer surface of the 4G tester.

[0011] This utility model has at least the following beneficial effects: 1. In use, this utility model utilizes a second spring and connecting cylinder. The telescopic support rod between the base plate and the first and second connecting seats is fitted with the second spring, forming an elastic buffer layer in the vertical direction. This effectively absorbs vibrations and impacts from the ground, preventing direct transmission of vibrations to the 4G tester. Simultaneously, the fixed block, through the first connecting shaft, connecting rod, and second connecting shaft, forms a rotatable connection structure with the movable block. The stabilizing rod cooperates with the connecting cylinder, along with the limiting plate and the third spring, to achieve flexible multi-angle adjustment and stable locking in the horizontal direction. Regardless of uneven ground or lateral impacts from the external environment, this device ensures the 4G tester remains stable through elastic deformation and angle adjustment, effectively reducing the risk of damage to internal precision components and significantly improving the reliability and service life of the equipment under harsh working conditions.

[0012] 2. In use, this utility model utilizes a first spring and a clamping plate. The first spring is located in the movable grooves at the four corners of the base plate. One end of the first spring is connected to the groove wall, and the other end is fixed to the sliding block. The clamping plate on the upper surface of the sliding block directly adheres to the outer surface of the 4G tester. When the tester is placed on the base plate, the elastic deformation of the spring drives the clamping plate to automatically adapt to the instrument size, achieving gapless fixation through elastic force. This avoids damage to the outer shell caused by rigid clamping and prevents the equipment from shaking or shifting, solving the problem of poor compatibility in traditional fixing methods. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the structural support component of this utility model; Figure 3 This is a side view of the structural support component of this utility model; Figure 4 This is a side sectional view of a partial connection structure between the structural stabilizing rod and the connecting cylinder of this utility model.

[0014] In the diagram: 1. 4G tester; 2. Support assembly; 21. Base plate; 22. Movable groove; 23. First spring; 24. Sliding block; 25. Clamping plate; 26. First connecting seat; 27. Second spring; 28. Telescopic support rod; 29. ​​Second connecting seat; 210. Fixing block; 211. First connecting shaft; 212. Connecting rod; 213. Second connecting shaft; 214. Movable block; 215. Stabilizing rod; 216. Connecting cylinder; 217. Clamping ring; 218. Positioning plate; 219. Fixing rod; 220. Limiting plate; 221. Third spring. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a 4G-based modal tester, including: a 4G tester 1, with a support component 2 movably connected to the bottom of the 4G tester 1.

[0017] In use, the second spring 27 and connecting cylinder 216 are used to form an elastic buffer layer in the vertical direction through the telescopic support rod 28 between the base plate 21 and the first connecting seat 26 and the second connecting seat 29, which is fitted with the second spring 27. This effectively absorbs vibration and impact from the ground, preventing vibration from being directly transmitted to the 4G tester 1. At the same time, the fixed block 210 forms a rotatable connection structure with the movable block 214 through the first connecting shaft 211, connecting rod 212, second connecting shaft 213, and the first connecting shaft 211. The stabilizing rod 215 cooperates with the connecting cylinder 216, and together with the limiting plate 220 and the third spring 221, it can achieve flexible multi-angle adjustment and stable locking in the horizontal direction. Whether it is the undulation of uneven ground or the lateral impact of the external environment, this device can ensure that the 4G tester 1 always remains stable through elastic deformation and angle adjustment, effectively reducing the risk of damage to internal precision components and significantly improving the reliability and service life of the equipment under harsh working conditions.

[0018] The support assembly 2 includes a base plate 21, a first connecting seat 26 fixedly connected to the bottom of the base plate 21, a telescopic support rod 28 fixedly connected to the bottom of the first connecting seat 26, a second spring 27 sleeved on the outer surface of the telescopic support rod 28, a second connecting seat 29 fixedly connected to the bottom of the second spring 27, a fixing block 210 fixedly connected to the side surface of the second connecting seat 29, a first connecting shaft 211 fixedly connected to the end of the fixing block 210 away from the second connecting seat 29, a connecting rod 212 rotatably connected to the outer surface of the first connecting shaft 211, a second connecting shaft 213 sleeved on the end of the connecting rod 212 away from the first connecting shaft 211, movable blocks 214 fixedly connected to both ends of the second connecting shaft 213, a stabilizing rod 215 fixedly connected to the outer surface of the movable block 214, and a connecting cylinder 216 movably connected to the end of the stabilizing rod 215 away from the movable block 214.

[0019] The stabilizing rod 215 is movably connected in two sets inside the two ends of the connecting cylinder 216. The outer surface of the stabilizing rod 215 is fixedly connected to the limiting plate 220. The side surface of the limiting plate 220 is fixedly connected to the third spring 221. The limiting plate 220 is movably connected inside the connecting cylinder 216. The limiting plate 220 is fixedly connected in two sets to the two ends of the third spring 221.

[0020] A positioning plate 218 is fixedly connected to the upper surface of the clamping ring 217. A fixing rod 219 is fixedly connected to the end of the positioning plate 218 away from the clamping ring 217. The top end of the fixing rod 219 is fixedly connected to the bottom of the base plate 21.

[0021] The fixing blocks 210 are in two groups. One group of fixing blocks 210 is fixedly connected to the side surface of the second connecting seat 29, and the other group of fixing blocks 210 is fixedly connected to the side surface of the first connecting seat 26. The first connecting seat 26 is fixedly connected in four groups at the bottom four corners of the base plate 21.

[0022] Movable grooves 22 are provided at the four corners of the upper surface of the base plate 21. A first spring 23 is fixedly connected to the inner wall of the movable groove 22. A sliding block 24 is fixedly connected to the end of the first spring 23 away from the inner wall of the movable groove 22. A clamping plate 25 is fixedly connected to the upper surface of the sliding block 24.

[0023] In use, the 4G-based modal tester achieves stable support and flexible fixation of the tester through the coordinated operation of multiple structures in the support component 2. During use, the 4G tester 1 is first placed on the upper surface of the base plate 21, within the movable grooves 22 at the four corners of the base plate 21. The sliding block 24 connected to the first spring 23 causes the clamping plate 25 to automatically conform to the outer surface of the 4G tester 1. The elasticity of the first spring 23 allows the clamping plate 25 to adapt to testers of different sizes, ensuring a secure fixation of the equipment while preventing damage to the instrument casing due to excessive clamping force.

[0024] When the 4G tester 1 needs to be fixed in different positions, the structure at the bottom of the support assembly 2 comes into play. The telescopic support rod 28 is fixedly connected between the first connecting seat 26 and the second connecting seat 29, and the second spring 27 sleeved on the outer surface provides cushioning and support; when placed on uneven ground, the second spring 27 can compress or extend according to the undulation of the ground to ensure that the base plate 21 remains relatively horizontal, thereby ensuring the stability of the 4G tester 1.

[0025] Meanwhile, the fixed block 210 is rotatably connected to the connecting rod 212 via the first connecting shaft 211, and the second connecting shaft 213 at the other end of the connecting rod 212 is connected to the movable block 214. The stabilizing rod 215 on the movable block 214 can be inserted into the connecting cylinder 216. By adjusting the angle of the connecting rod 212, the connection method between the stabilizing rod 215 and the connecting cylinder 216 can be changed, allowing the support assembly 2 to effectively achieve shock absorption and buffering. When the stabilizing rod 215 is inserted into the connecting cylinder 216, the limiting plate 220 on the stabilizing rod 215 compresses the third spring 221, and the limiting plate 220 locks the inner wall of the connecting cylinder 216, preventing the stabilizing rod 215 from accidentally slipping out and ensuring the stability of the support structure.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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 4G-based modal testing instrument, comprising: A 4G tester, characterized in that: a support component is movably connected to the bottom of the 4G tester; The support assembly includes a base plate, a first connecting seat fixedly connected to the bottom of the base plate, a telescopic support rod fixedly connected to the bottom of the first connecting seat, a second spring sleeved on the outer surface of the telescopic support rod, a second connecting seat fixedly connected to the bottom of the second spring, a fixing block fixedly connected to the side surface of the second connecting seat, a first connecting shaft fixedly connected to the end of the fixing block away from the second connecting seat, a connecting rod rotatably connected to the outer surface of the first connecting shaft, a second connecting shaft sleeved on the end of the connecting rod away from the first connecting shaft, movable blocks fixedly connected to both ends of the second connecting shaft, a stabilizing rod fixedly connected to the outer surface of the movable block, and a connecting cylinder movably connected to the end of the stabilizing rod away from the movable block.

2. The 4G-based modal testing instrument according to claim 1, characterized in that: The stabilizing rods are movably connected in two sets inside the two ends of the connecting cylinder. A clamping ring is fixedly connected to the outer surface of the connecting cylinder. A limiting plate is fixedly connected to the outer surface of the stabilizing rods. A third spring is fixedly connected to the side surface of the limiting plate. The limiting plate is movably connected inside the connecting cylinder. The limiting plate is fixedly connected in two sets to the two ends of the third spring.

3. The 4G-based modal testing instrument according to claim 2, characterized in that: A positioning plate is fixedly connected to the upper surface of the clamping ring, and a fixing rod is fixedly connected to the end of the positioning plate away from the clamping ring. The top end of the fixing rod is fixedly connected to the bottom of the base plate.

4. The 4G-based modal testing instrument according to claim 1, characterized in that: The fixing blocks are in two groups. One group of fixing blocks is fixedly connected to the side surface of the second connecting seat, and the other group of fixing blocks is fixedly connected to the side surface of the first connecting seat. The first connecting seat is in four groups and fixedly connected to the four bottom corners of the base plate.

5. A 4G-based modal testing instrument according to claim 1, characterized in that: Movable grooves are provided at the four corners of the upper surface of the base plate. A first spring is fixedly connected to the inner wall of the movable groove. A sliding block is fixedly connected to the end of the first spring away from the inner wall of the movable groove. A clamping plate is fixedly connected to the upper surface of the sliding block.

6. A 4G-based modal testing instrument according to claim 5, characterized in that: The clamping plates are arranged in four groups and clamped to the outer surface of the 4G tester.

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