CN115467931A - Three-dimensional vibration reduction platform for biology laboratory - Google Patents

Three-dimensional vibration reduction platform for biology laboratory Download PDF

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Publication number
CN115467931A
CN115467931A CN202211086453.1A CN202211086453A CN115467931A CN 115467931 A CN115467931 A CN 115467931A CN 202211086453 A CN202211086453 A CN 202211086453A CN 115467931 A CN115467931 A CN 115467931A
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CN
China
Prior art keywords
vibration
rubber
support ring
flow channel
liquid chamber
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Pending
Application number
CN202211086453.1A
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Chinese (zh)
Inventor
杨一鸣
王官正
赵佳
齐思贤
潘莹
张春梅
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Jilin University
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Jilin University
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Priority to CN202211086453.1A priority Critical patent/CN115467931A/en
Publication of CN115467931A publication Critical patent/CN115467931A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/022Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

The invention relates to a three-dimensional vibration reduction platform for a biological laboratory, which consists of a circular working table surface, a support ring with a Y-shaped section, 4 hydraulic rubber vibration reducers and a base, wherein the support ring is arranged on the circular working table surface; the hydraulic rubber vibration absorber has an inclination angle structure and is matched with the annular inclined plane of the Y-shaped support ring to form a vibration absorbing platform with space three-dimensional vibration isolation performance. The basic structure of the hydraulic rubber shock absorber consists of a rubber spring and three liquid chambers to form a secondary shock absorption system, and the shock absorption capacity of the hydraulic rubber shock absorber is greatly improved compared with that of a primary shock absorption system. The three-dimensional vibration reduction platform for the biological laboratory has better vibration isolation performance, liquid generates on-the-way loss when flowing through the flow channel, a hydraulic damping effect is provided, and the damping time of vibration is shorter; the orifice and the orifice can effectively reduce the volume rigidity of the second liquid chamber when the vibration frequency is higher, so that the high-frequency hardening phenomenon is resisted, and the high-frequency vibration isolation capability of the vibration reduction platform is further improved; can meet the vibration isolation requirement of vibration source equipment in a biological laboratory.

Description

Three-dimensional vibration reduction platform for biology laboratory
Technical Field
The invention belongs to the technical field of experimental instruments, and particularly relates to a general three-dimensional vibration reduction platform for a biological laboratory, which is based on rubber materials for providing elastic rigidity and ethylene glycol solution for providing damping.
Background
In a biological laboratory, a plurality of vibration source devices such as centrifuges, pump devices and the like exist, and when the devices work, the devices often emit larger vibration and noise, so that the physical and psychological health of experimenters and the working reliability of other precision instrument devices are affected. The current biological laboratory basically has no effective vibration isolation measures for the vibration source equipment, and most of the vibration isolation measures adopt a mode of directly placing on a workbench or the ground or only adopting a simple rubber vibration isolation block for supporting to isolate vibration.
The vibration isolation effect of the rubber material is related to the hardness thereof, and due to the material properties thereof, a dynamic hardening phenomenon occurs at the time of high-frequency vibration, and the vibration isolation effect is rapidly deteriorated. The rotating speed of the centrifugal machine and the pump equipment used in the current biological laboratory is about 8000-30000 r/min, the lowest exciting frequency is about 100Hz, and the highest exciting frequency can reach more than 3000Hz, and the common rubber or spring vibration damping system can not meet the vibration isolation requirement of the wide frequency. Therefore, it is necessary to improve the vibration isolation measures and structure of the vibration source equipment in the biological laboratory so as to meet the requirement of wide-band vibration isolation.
Disclosure of Invention
The invention aims to provide a three-dimensional vibration isolation platform for a biological laboratory, which is based on rubber materials to provide elastic rigidity, ethylene glycol solution to provide damping and has a two-stage hydraulic vibration isolation structure, so as to solve the problem of vibration isolation of instruments and equipment such as a centrifuge and provide a broadband vibration isolation effect for laboratory vibration source equipment.
The purpose of the invention is realized by the following technical scheme:
a three-dimensional vibration reduction platform for a biological laboratory comprises a circular working table top 14, a support ring 15 with a Y-shaped section, 4 hydraulic rubber vibration absorbers 16 uniformly distributed at 90-degree angles and a base 17; the damping element is a hydraulic rubber damper 16 which comprises a connecting top seat 1, a rubber spring 2, a closed liquid chamber positioned in the rubber spring 2, a first liquid chamber 3, a second liquid chamber 4, a supporting base 5 and a runner plate 6;
the flow channel disc 6 is provided with a liquid flow channel 12, a flow channel inlet 13, a flow channel outlet 7, a throttling disc hole 10 and a throttling disc 11, and a third liquid chamber 8 and a rubber film 9 are arranged below the flow channel disc 6;
the rubber spring 2 and the central axis of the supporting base 5 form an included angle of 30 degrees and are connected in a rubber vulcanization mode to form a second liquid chamber 4 in a closed mode, a space enclosed by the runner disc 6 and the rubber film 9 forms a third liquid chamber 8, and all the liquid chambers are filled with 80% of glycol aqueous solution.
Further, the circular table top 14 and the support ring 15 are bolted through 6 holes evenly distributed on the circumference thereof.
Furthermore, 4 uniformly distributed holes are formed in the inclined surface of the support ring 15 and are respectively matched with the connecting top bases 1 of the 4 hydraulic rubber shock absorbers 16, threads are machined on the matching bolts of the connecting top bases 1, and the supporting ring 15 is connected with the nuts.
Furthermore, there are 2 unthreaded holes on the support base 5, and the hole that exists two by two on the base 17 is connected through the bolt.
Furthermore, the Y-shaped support ring 15 is provided with an inclined ring surface, the inclination angle of the Y-shaped support ring is the same as that of the rubber spring 2 of the hydraulic rubber damper 16, and the Y-shaped support ring and the hydraulic rubber damper are connected through nuts to form a damping platform with spatial three-dimensional damping performance.
Further, the hydraulic rubber damper 16 adopts a two-stage damping structure.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a three-dimensional vibration damping platform for a biological laboratory, which adopts a hydraulic rubber vibration damper with an inclination angle structure as a vibration damping element and is connected with a circular working table surface, a support ring with a Y-shaped section and a base to form the vibration damping platform with three-dimensional vibration damping performance; the hydraulic rubber shock absorber is provided with three liquid chambers to form a secondary shock absorption effect, the vibration isolation performance is better, liquid generates on-way loss when flowing through a flow channel, the hydraulic damping effect is provided, and the damping time of vibration is shorter; the orifice and the orifice can effectively reduce the volume rigidity of the second liquid chamber when the vibration frequency is higher, so that the high-frequency hardening phenomenon is resisted, and the high-frequency vibration isolation capability of the vibration reduction platform is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a cross-sectional view of a hydraulic rubber damper of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
FIG. 3 is an exploded view of one embodiment of the present invention;
FIG. 4 is a schematic diagram of a base of an embodiment of the present invention.
In the figure: 1. the hydraulic rubber damper is connected with a top seat 2, a rubber spring 3, a first liquid chamber 4, a second liquid chamber 5, a supporting base 6, a runner plate 7, a runner outlet 8, a third liquid chamber 9, a rubber film 10, a throttle plate hole 11, a throttle plate 12, a liquid runner 13, a runner inlet 14, a circular working table surface 15, a supporting ring 16, a hydraulic rubber damper 17 and the base.
Detailed Description
The invention is further illustrated by the following examples:
the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 2-4, the three-dimensional vibration reduction platform for the biological laboratory of the invention comprises a circular working table 14, a support ring 15 with a Y-shaped section, 4 hydraulic rubber vibration reducers 16 uniformly distributed at 90-degree angles, and a base 17. The circular working table surface 14 and the support ring 15 are connected through 6 holes uniformly distributed on the circumference of the circular working table surface by bolts, 4 uniformly distributed holes are formed in the inclined surface of the support ring 15 and used for being connected with 4 hydraulic rubber shock absorbers 16, and 8 holes distributed pairwise are formed in the base 17 and used for being connected with the support base 15 of the 4 hydraulic rubber shock absorbers 16.
As shown in fig. 1, the three-dimensional vibration reduction platform for biological laboratories of the present invention has a hydraulic rubber vibration reducer 16 as a vibration reduction element, which includes a connection top seat 1, a rubber spring 2, a closed liquid chamber located inside the rubber spring 2, a first liquid chamber 3, a second liquid chamber 4, a support base 5, and a flow passage plate 6.
The flow channel disc 6 is provided with a liquid flow channel 12, a flow channel inlet 13, a flow channel outlet 7, a throttling disc hole 10 and a throttling disc 11, and a third liquid chamber 8 and a rubber film 9 are arranged below the flow channel disc 6. The throttling disc hole 10 and the throttling disc 11 are used for improving high-frequency vibration isolation capacity.
The rubber spring 2 and the central axis of the supporting base 5 form an included angle of 30 degrees and are connected in a rubber vulcanization mode to form a second liquid chamber 4 in a closed mode, a space enclosed by the flow passage disc 6 and the rubber film 9 forms a third liquid chamber 8, and all the liquid chambers are filled with 80% of ethylene glycol aqueous solution.
The hydraulic rubber shock absorber 16 has an inclined angle structure, is connected with the annular inclined plane of the Y-shaped support ring 15 through a nut, and forms a shock absorbing platform with space three-dimensional vibration isolation performance in a matching way. The basic structure of the hydraulic rubber shock absorber 16 is composed of a rubber spring 2 and three liquid chambers to form a secondary shock absorption system, and the shock absorption capacity of the hydraulic rubber shock absorber is greatly improved compared with that of a primary shock absorption system. The three-dimensional vibration reduction platform provided by the invention can meet the requirement of broadband vibration isolation, can greatly improve the vibration isolation capability under single frequency, and can better meet the vibration isolation requirement of vibration source equipment in a biological laboratory.
Example 1
The utility model provides a support ring 15 carries out bolted connection that biology laboratory is with three-dimensional damping platform, vibration source class equipment places on circular table surface 14, circular table surface 14 through 6 even week portion bolt holes and cross-section for the Y shape. The support ring 15 has an annular inclined plane, 4 uniformly distributed unthreaded holes are formed in the annular inclined plane, the annular inclined plane is matched with the connecting top bases 1 of the 4 hydraulic rubber shock absorbers 16 respectively, threads are machined on matching bolts of the connecting top bases 1, and the threads are connected with the support ring 15 through nuts. The support base 5 of the hydraulic rubber damper 16 has 2 unthreaded holes, and as shown in fig. 1, the unthreaded holes are connected with holes in pairs on the base 17 shown in fig. 4 by bolts. Finally, a three-dimensional damping platform is formed as shown in fig. 2.
The hydraulic rubber shock absorber of the three-dimensional shock absorption platform has the advantages that the rubber spring 2 and the axis of the supporting base 5 form an included angle, and the included angle is the same as the included angle of the annular inclined surface of the Y-shaped supporting ring 15, so that the included angle can be matched, and the shock absorption platform with the shock absorption performance in three spatial directions is formed. The hydraulic rubber damper is provided with three liquid chambers to form a secondary damping system, wherein the rubber spring 2 and the first liquid chamber 3 form a hydraulic extrusion-shaped damper which is a primary damping system; the rubber spring 2, the second liquid chamber and the third liquid chamber jointly form a second-stage damping system. Compared with a primary vibration damping system, the vibration isolation performance of the secondary vibration damping system is obviously improved.
The specific implementation process and the vibration isolation principle are as follows:
when vibration source equipment placed on a circular working table generates vibration excitation, vibration is transmitted to the support ring 15 through the circular working table 1 and then transmitted to the connecting top seat 1 of the hydraulic rubber damper 16 through connection, the rubber spring 2 can deform under the vibration excitation to provide certain elastic rigidity, the first liquid chamber 3 is filled with incompressible liquid glycol solution, the liquid oscillates in the deformation process of the rubber spring 2 and rubs with the boundary of a rubber material to provide certain damping, and the rubber spring 2 and the first liquid chamber 3 jointly form a first-stage damping system. In the vibration excitation process, the volume of the second liquid chamber 4 changes along with the deformation of the rubber spring 2, taking the compression process as an example, the volume of the second liquid chamber 4 becomes smaller, the pressure intensity increases, the liquid flows into the flow channel through the flow channel inlet 13 on the flow channel disc 6 under the action of pressure, and flows into the third liquid chamber 8 through the flow channel outlet 7 after circling for one circle, and the rigidity of the rubber film 9 is extremely small and is communicated with the atmosphere, so that the third liquid chamber 8 expands. The liquid rubs with the runner wall in the flowing process, so that fluid loss along the way is generated, and certain damping is provided. The mass of the liquid in the flow channel and the certain volume rigidity of the second liquid chamber 4 form a second-stage damping system together with the third liquid chamber 8, so that the vibration isolation capability of not only meeting the damping effect of key frequency but also giving consideration to the broadband damping effect can be provided. When the excitation frequency is higher, the throttle disc 11 in the throttle disc hole 10 vibrates up and down under the pressure action of liquid, so that the volume rigidity of the second liquid chamber 4 is effectively reduced, the high-frequency hardening phenomenon of the shock absorber is avoided, and better high-frequency vibration isolation capability is provided.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (6)

1. The utility model provides a three-dimensional damping platform is used in biology laboratory which characterized in that: the hydraulic rubber damper consists of a circular working table top (14), a support ring (15) with a Y-shaped section, 4 hydraulic rubber dampers (16) which are uniformly distributed at 90-degree angles and a base (17); the damping element is a hydraulic rubber damper (16) and comprises a connecting top seat (1), a rubber spring (2), a closed liquid chamber positioned in the rubber spring (2), a first liquid chamber (3), a second liquid chamber (4), a supporting base (5) and a flow channel disc (6);
a liquid flow channel (12), a flow channel inlet (13), a flow channel outlet (7), a throttle plate hole (10) and a throttle plate (11) are arranged on the flow channel plate (6), and a third liquid chamber (8) and a rubber film (9) are arranged below the flow channel plate (6);
the rubber spring (2) and the central axis of the supporting base (5) form a 30-degree included angle to be connected in a rubber vulcanization mode, a second liquid chamber (4) is formed in a closed mode, a space enclosed by the flow channel disc (6) and the rubber film (9) forms a third liquid chamber (8), and all liquid chambers are filled with 80% of ethylene glycol aqueous solution.
2. The three-dimensional vibration reduction platform for the biological laboratory according to claim 1, wherein: the circular working table surface (14) and the support ring (15) are connected through 6 holes uniformly distributed on the circumference of the circular working table surface by bolts.
3. The three-dimensional vibration reduction platform for the biological laboratory according to claim 1, wherein: the hydraulic rubber shock absorber is characterized in that 4 uniformly distributed holes are formed in the inclined plane of the support ring (15) and are respectively matched with the connecting top bases (1) of the 4 hydraulic rubber shock absorbers (16), threads are machined on the matching bolts of the connecting top bases (1), and the threads are connected with the support ring (15) through nuts.
4. The three-dimensional vibration reduction platform for the biological laboratory according to claim 1, wherein: the supporting base (5) is provided with 2 unthreaded holes, and the unthreaded holes are connected with the holes in the base (17) in pairs through bolts.
5. The three-dimensional vibration reduction platform for the biological laboratory according to claim 1, wherein: the Y-shaped support ring (15) is provided with an inclined ring surface, the inclination angle of the Y-shaped support ring is the same as that of the rubber spring (2) of the hydraulic rubber shock absorber (16), and the Y-shaped support ring is connected through a nut to form a shock absorption platform with space three-dimensional shock absorption performance.
6. The three-dimensional vibration reduction platform for the biological laboratory according to claim 1, wherein: the hydraulic rubber shock absorber (16) adopts a two-stage shock absorption structure.
CN202211086453.1A 2022-09-07 2022-09-07 Three-dimensional vibration reduction platform for biology laboratory Pending CN115467931A (en)

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Application Number Priority Date Filing Date Title
CN202211086453.1A CN115467931A (en) 2022-09-07 2022-09-07 Three-dimensional vibration reduction platform for biology laboratory

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Application Number Priority Date Filing Date Title
CN202211086453.1A CN115467931A (en) 2022-09-07 2022-09-07 Three-dimensional vibration reduction platform for biology laboratory

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CN115467931A true CN115467931A (en) 2022-12-13

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2308763Y (en) * 1997-10-10 1999-02-24 吉林工业大学 Hydraulic damping suspension arranged component of engine
EP0957284A1 (en) * 1998-05-13 1999-11-17 Automobiles Peugeot Production method for intermediate plate of a hydraulically-damped elastic support and intermediate plate thereby obtained
CN201747855U (en) * 2009-09-25 2011-02-16 宁波拓普制动系统有限公司 Novel dry type filling hydraulic mount
CN102734380A (en) * 2012-06-29 2012-10-17 无锡市宏源弹性器材有限公司 Damping platform
CN106090112A (en) * 2016-08-24 2016-11-09 张家港市铭诺橡塑金属有限公司 A kind of hydraulically damped rubber mount for automobile
CN206129963U (en) * 2016-09-26 2017-04-26 山东农业大学 Solid -liquid composite grain attenuator device
CN107643155A (en) * 2017-09-27 2018-01-30 苏州苏试试验集团股份有限公司 A kind of HYDRAULIC SPHERICAL connector with maintaining body
CN110566630A (en) * 2019-07-26 2019-12-13 北京空间飞行器总体设计部 load supporting device integrating vibration reduction of launching section and vibration isolation of on-track section
CN214078014U (en) * 2020-11-27 2021-08-31 吉林大学第一医院 Portable blood sampling platform cleaning device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2308763Y (en) * 1997-10-10 1999-02-24 吉林工业大学 Hydraulic damping suspension arranged component of engine
EP0957284A1 (en) * 1998-05-13 1999-11-17 Automobiles Peugeot Production method for intermediate plate of a hydraulically-damped elastic support and intermediate plate thereby obtained
CN201747855U (en) * 2009-09-25 2011-02-16 宁波拓普制动系统有限公司 Novel dry type filling hydraulic mount
CN102734380A (en) * 2012-06-29 2012-10-17 无锡市宏源弹性器材有限公司 Damping platform
CN106090112A (en) * 2016-08-24 2016-11-09 张家港市铭诺橡塑金属有限公司 A kind of hydraulically damped rubber mount for automobile
CN206129963U (en) * 2016-09-26 2017-04-26 山东农业大学 Solid -liquid composite grain attenuator device
CN107643155A (en) * 2017-09-27 2018-01-30 苏州苏试试验集团股份有限公司 A kind of HYDRAULIC SPHERICAL connector with maintaining body
CN110566630A (en) * 2019-07-26 2019-12-13 北京空间飞行器总体设计部 load supporting device integrating vibration reduction of launching section and vibration isolation of on-track section
CN214078014U (en) * 2020-11-27 2021-08-31 吉林大学第一医院 Portable blood sampling platform cleaning device

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