A vibration damping device for transporting precision instruments

Abstract

The utility model relates to the technical field of damping device, the utility model provides a kind of damping device for transporting precision instrument, including box and honeycomb damping layer, honeycomb damping layer is set on the inner circumferential wall of box, and honeycomb damping layer is used to absorb low-frequency vibration.Damping inner layer is set on the inner side wall of box and is located on the circumferential wall of honeycomb damping layer, and damping inner layer is used to receive equipment.The problem that traditional foam cushioning pad elasticity recovery ability is insufficient, cannot effectively block low-frequency vibration is solved, the absorption efficiency of low-frequency vibration is significantly improved by double-layer buffering structure, avoid the internal element displacement of instrument due to low-frequency continuous vibration, reduce calibration times after transportation.

Description

Technical Field

[0001] This utility model relates to the field of vibration damping device technology, specifically to a vibration damping device for transporting precision instruments. Background Technology

[0002] Precision instruments, such as optical measuring instruments, electronic analysis equipment, and precision sensors, are widely used in scientific research, medical care, and high-end manufacturing. Their internal structures are complex and their precision thresholds are extremely high. Even a slight vibration can cause displacement of internal components and deviation of calibration parameters, which in turn can lead to measurement errors, functional failures, or even irreversible damage to components. Therefore, stringent requirements are placed on vibration control during transportation.

[0003] Currently, the industry primarily uses traditional cushioning structures for vibration reduction during the transportation of precision instruments. These mainly include the following types: First, foam cushioning pads, which absorb some impact through their own deformation. However, when faced with bumpy roads, such as unpaved roads commonly seen in logistics transportation, sudden braking, or continuous vibrations caused by road undulations, their elastic recovery ability is limited, and they cannot effectively block the transmission of vibration to the instrument body, especially with extremely poor cushioning effect for medium and high frequency vibrations. Second, ordinary spring vibration dampers, which can alleviate vibration through spring extension and contraction, but the spring's natural frequency is fixed. When the external vibration frequency during transportation is close to the spring's natural frequency, resonance is likely to occur, which amplifies the vibration amplitude and exacerbates the impact on the instrument. Third, rubber pads, which rely on the elastic deformation of rubber for vibration reduction. However, with long-term use, they are prone to aging and hardening, and their vibration reduction performance deteriorates over time. Furthermore, they cannot adjust the vibration reduction force according to different weights and different vibration sensitivity thresholds of precision instruments, resulting in insufficient versatility and stability.

[0004] The aforementioned traditional vibration reduction methods cannot achieve targeted and efficient vibration isolation based on actual transportation conditions and the characteristics of precision instruments, such as weight and sensitive vibration range. This often leads to accuracy deviations in precision instruments after transportation. This not only requires additional manpower and time for recalibration, increasing operating costs, but can also, in severe cases, damage core instrument components due to vibration, causing direct economic losses to users. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a vibration damping device for transporting precision instruments, which solves the technical problem in the prior art that the vibration caused by bumpy roads cannot be effectively reduced when transporting precision instruments, resulting in errors in the precision instruments.

[0006] According to one aspect, at least one embodiment of the present invention provides a vibration damping device for transporting precision instruments, comprising: Box; A honeycomb vibration damping layer is disposed on the inner peripheral wall of the box, and the honeycomb vibration damping layer is used to absorb low-frequency vibrations; The vibration-damping inner layer is disposed on the inner side wall of the box and located on the periphery of the honeycomb vibration-damping layer. The vibration-damping inner layer is used to support the equipment.

[0007] Optional, also includes: A placement box, wherein the placement box is used to hold the precision instruments to be transported; A fixing base is placed inside the box, and a placement box is placed on top of the fixing base. The fixing base and the placement box are detachably connected.

[0008] Optionally, the mounting base includes: The base body abuts against the vibration-damping inner layer; Several air springs are provided, all spaced apart on the top of the seat body. The air springs are connected to the bottom of the placement box and are used to absorb vibration energy.

[0009] Optionally, the mounting base has a cavity inside, and a data acquisition module and a control module are placed inside the cavity. The control module is electrically connected to the data acquisition module. The data acquisition module can send the data acquired by the data acquisition module to the control module so that the control module can adjust the air pressure of the air spring.

[0010] Optionally, the outer layer of the enclosure is a high-damping alloy layer, which is used to absorb high-frequency vibrations.

[0011] Optional, also includes: A plurality of baffles are provided, and the plurality of baffles are respectively disposed on the peripheral wall of the top surface of the base body. The baffles are used to limit the side wall of the placement box. A plurality of limiting straps are provided on the base body, and the limiting straps can bypass the top surface of the placement box to limit the top surface of the placement box.

[0012] Optional, also includes: A battery pack is disposed within the cavity of the mounting base, and the battery pack is used to power the data acquisition module and the control module.

[0013] Optionally, the air spring is equipped with an air pump and an exhaust valve, both of which are electrically connected to the control module.

[0014] Optionally, the box body is hinged to a top cover, and the top cover is provided with a handle, the top cover being used to close the box body.

[0015] Optionally, the housing is provided with a retaining ring, and the top cover has a buckle. The retaining ring engages with the buckle, and the buckle cooperates with the retaining ring to fasten the top cover onto the housing.

[0016] The beneficial effects of this utility model are as follows: In this invention, the precision instrument is placed inside the frame of the vibration-damping inner layer during use. During transportation, the box first absorbs external vibrations. The honeycomb vibration-damping layer absorbs most of the low-frequency vibration energy through its own deformation. The remaining minor vibrations are transmitted to the vibration-damping inner layer, where the silicone frame further buffers them through elastic deformation, ultimately significantly reducing the amplitude of vibration transmitted to the instrument. This structure solves the problem of insufficient elastic recovery ability and inability to effectively block low-frequency vibrations in traditional foam cushioning pads. The double-layer buffering structure significantly improves the absorption efficiency of low-frequency vibrations, preventing internal component displacement due to continuous low-frequency vibrations and reducing the number of calibrations after transportation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the box structure in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the overall structure of the transport device in the embodiment; Figure 3 for Figure 1 A schematic diagram of the air spring in the embodiment; Figure 4 for Figure 1 A schematic diagram of the internal structure of the fixing base in the embodiment; Figure 5 for Figure 1 A schematic diagram of the honeycomb damping layer in the embodiment.

[0019] In the diagram: 1. Box body, 11. Top cover, 100. Placement box, 101. Snap ring, 102. Buckle, 2. Honeycomb vibration damping layer, 3. Vibration damping inner layer, 4. Fixing base, 401. Cavity, 41. Seat body, 411. Baffle, 412. Limiting strap, 42. Air spring, 5. Data acquisition module, 6. Control module. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-5 As shown, it illustrates a vibration damping device for transporting precision instruments in one embodiment of the present invention, including a housing 1, a honeycomb vibration damping layer 2 disposed on the inner peripheral wall of the housing 1, the honeycomb vibration damping layer 2 being used to absorb low-frequency vibrations; and a vibration damping inner layer 3 disposed on the inner side wall of the housing 1 and located on the peripheral wall of the honeycomb vibration damping layer 2, the vibration damping inner layer 3 being used to support the equipment.

[0027] For example, such as Figure 1 As shown in the above scheme, the vibration damping device used for transporting precision instruments has a pre-installed installation structure on the inner wall of the housing 1. The honeycomb vibration damping layer 2 is made of aluminum honeycomb core material composite polyurethane film, which is glued to the inner peripheral wall of the housing 1 with adhesive. It is specifically used to absorb low-frequency vibrations. The vibration damping inner layer 3 is made of silicone material to form a frame structure, which is connected and fixed to the inner peripheral wall of the honeycomb vibration damping layer 2. The inner side is also provided with a fluff layer to support the equipment. In use, the precision instrument is placed in the frame of the vibration damping inner layer 3. During transportation, the housing 1 first bears the external vibration. The honeycomb vibration damping layer 2 absorbs most of the low-frequency vibration energy through its own deformation. The remaining small vibrations are transmitted to the vibration damping inner layer 3, and the frame further buffers them through elastic deformation, ultimately greatly reducing the vibration amplitude transmitted to the instrument. This structure solves the problem of insufficient elastic recovery ability of traditional foam cushioning pads and inability to effectively block low-frequency vibrations. The double-layer buffer structure significantly improves the absorption efficiency of low-frequency vibrations, avoids displacement of internal components of the instrument due to continuous low-frequency vibrations, and reduces the number of calibrations after transportation.

[0028] For example, such as Figure 2 As shown, it also includes a placement box 100, which is used to place precision instruments to be transported; a fixing base 4 is placed inside the box body 1, and the placement box 100 is placed on top of the fixing base 4. The fixing base 4 and the placement box 100 are detachably connected.

[0029] In the above solution, the placement box 100 can be detachably connected to the fixing seat 4 via the buckle 102. When in use, the precision instrument to be transported is placed in the placement box 100, and the placement box 100 is pressed to make it snap into the positioning groove of the fixing seat 4. Then, the fixing seat 4 is placed into the vibration-damping inner layer 3 inside the housing 1. After transportation, the placement box 100 can be pulled out directly to take out the instrument. When changing instruments of different sizes, only the matching placement box 100 needs to be replaced, and the fixing seat 4 can be reused. This solves the problem of the inability of traditional rubber pads to adapt to instruments of different sizes. By combining the detachable placement box 100 with the universal fixing seat 4, it can adapt to a variety of precision instruments, reduce the cost of replacing parts, and avoid direct contact between the instrument and the fixing seat 4, which would cause wear on the outer shell.

[0030] For example, such as Figure 2 As shown, the fixed base 4 includes a base body 41, which abuts against the vibration damping inner layer 3; there are several air springs 42, which are all spaced apart on the top of the base body 41 and connected to the bottom of the placement box 100. The air springs 42 are used to absorb vibration energy.

[0031] In the above scheme, the fixed base 4 includes a base body 41 and several air springs 42. The air springs 42 are fixed in the mounting holes of the base body 41 by bolts. A connecting plate is provided on the top and connected to the bottom of the placement box 100 by screws. During transportation, when external vibration is transmitted to the base body 41, the base body 41 drives the air springs 42 to extend and retract up and down. When the vibration is transmitted upward, the gas in the air spring 42 is compressed and absorbs the vibration energy through the friction of gas molecules. When the vibration is transmitted downward, the gas in the air spring 42 expands and buffers the vibration impact through deformation. At the same time, the extension and retraction of the air spring 42 is controlled within a reasonable range to avoid the instrument tilting. This structure solves the problem of easy resonance of traditional ordinary springs with fixed natural frequencies. The air springs 42 achieve variable stiffness vibration reduction through gas compression and expansion, effectively avoiding resonance between external vibration and springs during transportation, greatly reducing the vibration amplification coefficient, and protecting the core components of the instrument from resonance damage.

[0032] For example, such as Figure 2 As shown, the fixed base 4 has a cavity 401 inside, and a data acquisition module 5 and a control module 6 are placed inside the cavity 401. The control module 6 is electrically connected to the data acquisition module 5. The data acquisition module 5 can send the data acquired by the data acquisition module 5 to the control module 6 so that the control module 6 can adjust the air pressure of the air spring 42.

[0033] In the above scheme, the fixed base 4 has a cavity 401 inside, which houses a data acquisition module 5 and a control module 6. The control module 6 is electrically connected to the data acquisition module 5. The data acquisition module 5 can collect vibration-related data and send it to the control module 6. The control module 6 can adjust the air pressure of the air spring 42 according to the received data. The inner wall of the cavity 401 is also lined with sound-absorbing cotton. During transportation, the data acquisition module 5 collects vibration data in real time and transmits it to the control module 6. The control module 6 analyzes the data through a preset algorithm, judges the current vibration situation, and outputs a control signal to adjust the air pressure of the air spring 42 to adapt to different vibration scenarios. This realizes closed-loop control of vibration acquisition, data analysis, and air pressure adjustment, solving the problem that traditional vibration reduction methods cannot be adjusted in real time according to road conditions. It greatly improves the adaptability to vibrations of different frequencies and amplitudes, avoids instrument accuracy deviations due to changes in road conditions, and reduces subsequent calibration costs.

[0034] For example, such as Figure 1 As shown, the outer layer of the housing 1 is a high-damping alloy layer, which is used to absorb high-frequency vibrations.

[0035] In the above scheme, the outer layer of the housing 1 is a high-damping alloy layer, which is bonded to the inner layer of the housing 1 with adhesive, and is specifically designed to absorb high-frequency vibrations. During transportation, when high-frequency vibrations occur in the external environment, the high-damping alloy of the outer layer of the housing 1 first absorbs the vibrations and consumes most of the high-frequency vibration energy. The remaining low-frequency vibrations are transmitted to the middle honeycomb damping layer 2 and further absorbed, and the amplitude of the high-frequency vibrations transmitted to the instrument is greatly reduced. This solves the problem of the poor buffering effect of traditional foam cushioning pads on mid-to-high-frequency vibrations. Combined with the low-frequency absorption capacity of the honeycomb damping layer 2, it achieves full-band vibration isolation and avoids calibration parameter deviations of the instrument due to mid-to-high-frequency vibrations.

[0036] For example, such as Figure 2 As shown, it also includes baffles 411, of which there are several baffles 411, which are respectively disposed on the peripheral wall of the top surface of the base 41. The baffles 411 are used to limit the side wall of the placement box 100. There are also several limiting straps 412, which are disposed on the base 41. The limiting straps 412 can bypass the top surface of the placement box 100 to limit the top surface of the placement box 100.

[0037] In the above scheme, the vibration damping device also includes several baffles 411 and several limiting straps 412. The baffles 411 are fixed to the top peripheral wall of the base 41 by screws, and rubber pads are pasted on the inner side to limit the side wall of the placement box 100. The limiting straps 412 are made of nylon and are fixed to the base 41 by metal buckles 102. They can bypass the top surface of the placement box 100 and are fixed by Velcro to limit the top surface of the placement box 100. When in use, after the placement box 100 is placed into the positioning groove of the base 41, the baffles 411 adhere to the side wall of the placement box 100 from the side to limit horizontal displacement. Then, the limiting straps 412 are bypassed to the top surface of the placement box 100 and tightened to fix the top surface of the placement box 100. This bidirectional limiting structure solves the problem of easy displacement of the instrument in the traditional vibration damping structure, controls the displacement of the instrument in transportation to a very small range, avoids damage to internal components due to displacement, and greatly reduces the failure rate of the instrument after transportation.

[0038] For example, such as Figure 3 As shown, it also includes a battery pack, which is disposed in the cavity 401 of the mounting base 4. The battery pack is used to power the data acquisition module 5 and the control module 6.

[0039] In the above scheme, the vibration damping device also includes a battery pack, which is installed in the cavity 401 of the fixed base 4 and fixed by an insulating bracket. The outside is wrapped with a flame-retardant protective sleeve. The battery pack is electrically connected to the data acquisition module 5 and the control module 6 through a voltage stabilizing module. The side wall of the cavity 401 is also equipped with a power indicator light. Before transportation, the battery pack is fully charged. After the data acquisition module 5 and the control module 6 are started, the battery pack outputs a stable voltage through the voltage stabilizing module to continuously supply power. During transportation, the power indicator light can display the remaining power. After transportation, the battery pack is charged through the interface for the next use. This design solves the limitation of traditional electronically controlled vibration damping devices that rely on external power. The battery pack's endurance meets the needs of long-distance transportation, eliminating the need for an additional connection to the vehicle's power supply, improving the portability and applicability of the device. At the same time, the flame-retardant design reduces safety hazards.

[0040] For example, such as Figure 3 and Figure 4 As shown, the air spring 42 is equipped with an air pump and an exhaust valve, both of which are electrically connected to the control module 6.

[0041] In the above scheme, the air spring 42 is equipped with an air pump and an exhaust valve, both of which are electrically connected to the control module 6. The air pump is connected to the air inlet of the air spring 42 through an air pipe, and a one-way valve is installed on the air pipe. The exhaust valve is connected in parallel with the air pump in the air path of the air spring 42, and a silencer is installed at the exhaust port. When the control module 6 determines that the air pressure of the air spring 42 needs to be increased, it outputs a signal to start the air pump to inflate the air spring 42. At the same time, the integrated air pressure monitoring component monitors the air pressure in real time. After the target air pressure is reached, the air pump is turned off. When the air pressure needs to be decreased, the control module 6 outputs a signal to open the exhaust valve, and the gas in the air spring 42 is discharged through the silencer. After the air pressure drops to the target air pressure, the exhaust valve is closed. This structure solves the problem of low air pressure adjustment accuracy of traditional air springs 42. By combining an independent air pump and an electromagnetic exhaust valve, precise air pressure adjustment is achieved. The stiffness can be flexibly adjusted according to the weight and vibration intensity of the instrument, adapting to the vibration reduction needs of different types of precision instruments and improving the stability of vibration reduction effect.

[0042] For example, such as Figure 2 As shown, the box 1 is hinged to a top cover 11, and the top cover 11 is provided with a handle. The top cover 11 can be used to close the box 1.

[0043] In the above scheme, the box 1 is hinged with a top cover 11, which is made of the same material as the box 1 and has a foam pad attached to the inside. One side of the top cover 11 is hinged to the top side of the box 1 by a hinge, which can be flipped to facilitate opening. The top of the top cover 11 is provided with a handle and the surface is provided with anti-slip texture. The top cover 11 can close the box 1. When in use, after the instrument is placed, the top cover 11 is flipped to fit against the top of the box 1. The foam pad on the inside of the top cover 11 abuts against the top surface of the box 100 to provide top cushioning. When moving, the operator holds the handle and lifts the box 1. During transportation, the top cover 11 is kept closed to prevent dust and moisture from entering.

[0044] For example, such as Figure 2 As shown, the box body 1 is equipped with a retaining ring 101, and the top cover 11 has a buckle 102. The retaining ring 101 is made of spring steel and is fixed to the outer walls of the top two sides of the box body 1 by welding. The inner side is provided with anti-slip protrusions. The buckle 102 is made of plastic and is connected to the outer walls of the top cover 11 by a pivot. The end is provided with a hook-shaped structure that matches the retaining ring 101, and the middle is provided with a pressing protrusion. The retaining ring 101 and the buckle 102 engage to fasten the top cover 11 onto the box body 1. When closing, press down on the buckles 101 on both sides of the top cover 11. 2. The hook-shaped structure of the buckle 102 is engaged in the retaining ring 101. The anti-slip protrusion fits tightly with the buckle 102 to prevent loosening. When opening, the pressing protrusion of the buckle 102 is pulled outward to disengage the hook-shaped structure from the retaining ring 101, allowing the top cover 11 to be flipped over. This structure solves the problem of the traditional top cover 11 not being securely fixed. The cooperation between the buckle 102 and the retaining ring 101 greatly improves the closing stability of the top cover 11, preventing the top cover 11 from loosening and the instrument from being exposed due to bumps during transportation. At the same time, it is easy to operate without the need for tools, improving loading and unloading efficiency.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vibration damping device for transporting precision instruments, characterized in that, include: Box (1); A honeycomb vibration damping layer (2) is disposed on the inner peripheral wall of the box (1), and the honeycomb vibration damping layer (2) is used to absorb low frequency vibration; The vibration damping inner layer (3) is disposed on the inner side wall of the box (1) and located on the periphery of the honeycomb vibration damping layer (2). The vibration damping inner layer (3) is used to support the equipment.

2. The vibration damping device for transporting precision instruments according to claim 1, characterized in that, Also includes: A placement box (100) is used to place precision instruments to be transported; The fixing seat (4) is placed inside the box (1), and the placement box (100) is placed on top of the fixing seat (4). The fixing seat (4) and the placement box (100) are detachably connected.

3. A vibration damping device for transporting precision instruments according to claim 2, characterized in that, The fixing base (4) includes: The seat (41) abuts against the vibration damping inner layer (3); There are several air springs (42), and the air springs (42) are all spaced apart on the top of the seat (41). The air springs (42) are connected to the bottom of the placement box (100). The air springs (42) are used to absorb vibration energy.

4. A vibration damping device for transporting precision instruments according to claim 2, characterized in that, The fixed base (4) has a cavity (401) inside, and a data acquisition module (5) and a control module (6) are placed inside the cavity (401). The control module (6) is electrically connected to the data acquisition module (5). The data acquisition module (5) can send the data acquired by the data acquisition module (5) to the control module (6) so that the control module (6) can adjust the air pressure of the air spring (42).

5. A vibration damping device for transporting precision instruments according to claim 4, characterized in that, The outer layer of the housing (1) is a high-damping alloy layer, which is used to absorb high-frequency vibrations.

6. A vibration damping device for transporting precision instruments according to claim 1, characterized in that, Also includes: A plurality of baffles (411) are provided on the top peripheral wall of the seat (41), and the baffles (411) are used to limit the side wall of the placement box (100); A plurality of limiting straps (412) are provided on the base (41). The limiting straps (412) can bypass the top surface of the placement box (100) to limit the top surface of the placement box (100).

7. A vibration damping device for transporting precision instruments according to claim 3, characterized in that, Also includes: A battery pack is disposed in the cavity (401) of the fixed base (4), and the battery pack is used to supply power to the data acquisition module (5) and the control module (6).

8. A vibration damping device for transporting precision instruments according to claim 4, characterized in that, The air spring (42) is equipped with an air pump and an exhaust valve, both of which are electrically connected to the control module (6).

9. A vibration damping device for transporting precision instruments according to claim 1, characterized in that, The box (1) is hinged to a top cover (11), and the top cover (11) is provided with a handle. The top cover (11) can be used to close the box (1).

10. A vibration damping device for transporting precision instruments according to claim 9, characterized in that, The housing (1) is provided with a retaining ring (101), and the top cover (11) has a buckle (102). The retaining ring (101) engages with the buckle (102), and the buckle (102) cooperates with the retaining ring (101) to fasten the top cover (11) onto the housing (1).

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