Adjustable vibration isolator capable of prepressing, damping and isolating vibration and adjustable floor floating structure

Abstract

The invention relates to the technical field of floor vibration reduction, in particular to an adjustable vibration isolator capable of pre-pressing damping vibration isolation and an adjustable floor floating structure, and the adjustable vibration isolator comprises an outer elastic assembly, an inner elastic assembly, a connecting plate body, a fixed frame body, an adjusting screw tube and a fastening screw. The adjustable floor floating structure comprises a plurality of the adjustable vibration isolators, and further comprises a bearing plate and a ground isolation layer. The adjustable vibration isolator has the advantages that the excellent vibration isolation effect can be achieved in the vertical direction, the service life of related equipment can be prolonged, the efficient vibration reduction effect can be kept for a long time, high stability can be kept, and the excellent sound insulation, vibration isolation and damping performance can be achieved; the adjustable floorslab floating structure can obtain all the advantages brought by the adjustable vibration isolator, the vibration reduction strength can be adjusted according to actual requirements, and therefore the situation that the follow-up using performance is affected by design, construction and manufacturers can be avoided, and the excellent sound insulation, vibration isolation and vibration elimination performance can be brought into play.

Description

Technical Field

[0001] The invention relates to the technical field of floor vibration reduction, in particular to a vibration isolator and a floor floating structure. Background Art

[0002] At present, noise pollution is one of the serious pollutions in the environment of buildings. And with the continuous improvement of the material and spiritual and cultural level of society, there have been many devices used in buildings that are prone to vibration (for example: water pumps, exhaust fans, various conveying pipelines), which has made noise pollution increasingly serious and seriously affected the physical and mental health of people around. For this reason, the types of noise generally complained about are divided into air noise and structural noise, and structural noise is generally dominated by medium and low frequencies. Among them, in order to reduce structural noise, spring isolators and floor floating structures are generally used to isolate the vibrating equipment from the building. However, most of the spring isolators and floor floating structures on the market now have the following problems: ① When the equipment is running, there is up and down vibration, especially the equipment that rotates up and down. Conventional spring shock absorbers and floor floating structures only have downward compression vibration isolation effects, and have almost no vibration isolation effect in the opposite direction.

[0003] ② Conventional spring shock absorbers and floor slabs only have vibration isolation effects, but poor damping effects. After installing spring shock absorbers, the vibration of the equipment becomes larger, especially the up and down rotating equipment, which may jump up and down with a large swing amplitude, seriously affecting the normal operation and service life of the equipment; but when encountering instantaneous impact force (such as dancing and bouncing), the shaking of the floating platform increases and will last for a long time.

[0004] ③. When conventional spring shock absorbers and floor slabs are subjected to a large additional load that exceeds the load-bearing range, they sink to a large extent and are easily damaged by over-compression; when subjected to an overload pulse force, the vibration amplitude of the vibration isolation platform is large and it is not easy to quickly and stably return to the initial state.

[0005] ④. Conventional spring shock absorbers and spring floor floating structures have a relatively high height, especially low-rigidity spring shock absorber floor floating structures that require high vibration isolation efficiency. While achieving high vibration isolation efficiency, it leads to poor stability and is easily affected by external forces and shakes.

[0006] ⑤. When selecting conventional vibration isolation, a certain load margin is generally predetermined. After the design, construction, and manufacturer's determination, the margin is enlarged in each link, which can easily lead to excessive spring margin, resulting in poor spring vibration isolation efficiency and poor stability of the floor floating platform.

[0007] Therefore, it is very necessary to design an adjustable vibration isolator and an adjustable floor floating structure that can pre-compress and damp vibration isolation to solve the above technical problems. Summary of the invention

[0008] The purpose of the present invention is to solve the above-mentioned problems and shortcomings, and to provide an adjustable vibration isolator and an adjustable floor floating structure that can pre-compress and damp vibration isolation. The adjustable vibration isolator can achieve excellent vibration isolation effects in the up and down directions; it can effectively reduce the bouncing amplitude and swing amplitude of the equipment, and the shaking it produces can disappear in a very short time, which can enable the equipment to operate efficiently for a long time, thereby helping to extend the service life of the equipment; it can withstand extremely large loads and pulse forces without being damaged, which can help to maintain efficient vibration reduction effects for a long time; it can maintain high stability while achieving excellent vibration isolation efficiency, and will not shake even if it is affected by external forces; it can adjust the vibration reduction strength according to actual needs, thereby avoiding the subsequent use performance being affected by the design, construction, and manufacturer, and further improving the equipment's performance. It can help to bring out extremely excellent sound insulation, vibration isolation and vibration reduction performance; the adjustable floor floating structure can have an excellent vibration isolation effect in the up and down directions; it can effectively reduce the bounce amplitude and swing amplitude of the equipment, and the generated shaking can disappear in a very short time, which can enable the equipment to operate efficiently for a long time, thereby helping to extend the service life of the equipment; it can withstand extremely large loads and pulse forces without damage, which can help to maintain efficient vibration reduction effects for a long time; it can maintain high stability while achieving excellent vibration isolation efficiency, and will not shake even if affected by external forces; it can adjust the vibration reduction strength according to actual needs, thereby avoiding the impact of design, construction, and manufacturers on subsequent use performance, and thus can help to bring out extremely excellent sound insulation, vibration isolation and vibration reduction performance.

[0009] The technical solution of the present invention is achieved in this way: The invention discloses an adjustable vibration isolator capable of pre-compression damping and vibration isolation, which is characterized in that it comprises an external elastic component, an internal elastic component, a connecting plate body, a fixed frame body, an adjusting screw tube and a fastening screw, wherein the external elastic component and the internal elastic component are both vertical elastic telescopic components, the internal elastic component is arranged in the upper end of the external elastic component, and the upper elastic end of the external elastic component elastically supports the lower elastic end of the internal elastic component, the upper elastic end of the internal elastic component is penetrated by a pre-tightening screw which can slide relatively vertically, and the threaded end of the pre-tightening screw is screwed downwardly on the lower elastic end of the external elastic component, the connecting plate body is fixedly arranged on the upper port of the fixed frame body, the external elastic component and the internal elastic component are both arranged in the fixed frame body, the adjusting screw tube is screwed vertically through the middle part of the connecting plate body, and the lower end of the adjusting screw tube is pressed against the upper elastic end of the internal elastic component, and the threaded end of the fastening screw tube vertically passes through the inner hole of the adjusting screw tube downwardly and is screwed with the upper elastic end of the internal elastic component.

[0010] Preferably, the external elastic component includes a chassis, an external spring, and a connecting tube. A positioning groove is provided on the top surface of the chassis, and a connecting boss is provided on the middle part of the bottom of the positioning groove. The connecting tube is vertically arranged above the chassis, and a downward pressure convex ring is provided on the outer circumferential surface of the upper end of the connecting tube, and a positioning ring groove is provided on the bottom surface of the downward pressure convex ring. The external spring is sleeved on the connecting tube, and the upper and lower ends of the external spring are elastically pressed in the positioning ring groove and the positioning groove respectively. A supporting convex ring is provided on the inner circumferential surface of the lower end of the connecting tube, and the supporting convex ring is arranged around the connecting boss, and the supporting convex ring also supports the internal elastic component, and the pre-tightening screw is screwed on the connecting boss.

[0011] Preferably, the internal elastic component includes an inner spring and a connecting column, the lower end of the connecting column is vertically inserted into the inner hole of the connecting tube, a vertically penetrating countersunk hole is provided on the top surface of the connecting column, the large hole of the countersunk hole is a threaded hole, and a limiting ring groove arranged around the countersunk hole is provided on the bottom surface of the connecting column, the inner spring is vertically arranged in the inner hole, and the upper and lower ends of the inner spring are elastically pressed in the limiting ring groove and the supporting convex ring respectively, the pre-tightening screw is arranged in the countersunk hole, and the threaded end of the pre-tightening screw is downwardly passed through the countersunk hole and the inner hole of the supporting convex ring in turn, and then is screwed with the connecting convex column, the adjusting screw is pressed on the top surface of the connecting column, and the fastening screw is screwed on the threaded hole.

[0012] Preferably, a protective cover plate is sandwiched between the connecting plate body and the connecting column, the adjusting screw is pressed against the protective cover plate, and the fastening screw is arranged through the protective cover plate.

[0013] Preferably, a convex ring portion arranged around the connecting column is provided on the bottom surface of the protective cover plate; a buffer gap is reserved between the convex ring portion and the downward pressing convex ring, or the convex ring portion is pressed on the top surface of the downward pressing convex ring.

[0014] Preferably, a wrench hole is provided on the top surface of the adjusting screw tube, a through hole is provided at the bottom of the wrench hole, the nut end of the fastening screw is placed in the wrench hole, and the threaded end of the fastening screw is passed downward through the through hole, and a wrench action groove is reserved between the outer circumferential surface of the threaded end of the fastening screw and the hole wall of the wrench hole.

[0015] Preferably, a fixing convex ring is provided on the upper inner wall of the fixing frame, the connecting plate body is embedded in the inner hole of the fixing frame body, and the four sides of the connecting plate body are overlapped on the fixing convex ring, and the four ends of the connecting plate body are fixed to the fixing convex ring by locking screws respectively; a vibration isolation sealing gasket is clamped between the connecting plate body and the fixing convex ring.

[0016] Preferably, connecting convex rings are provided on the outer circumferential surfaces of the upper and lower ends of the fixed frame, and vertically arranged connecting strips are welded and fixed on the outer walls of the four sides of the fixed frame, and the upper and lower ends of the connecting strips are bent to form horizontal strips perpendicular to the outer wall of the fixed frame, and the outer ends of the two horizontal strips are bent upward to form vertical strips.

[0017] Preferably, a convex plate portion is provided on the bottom surface of the connecting plate body, and the convex plate portion presses on the upper elastic end of the inner elastic component.

[0018] An adjustable floor floating structure is characterized in that it includes a plurality of the above-mentioned adjustable vibration isolators, a load-bearing plate, and a ground isolation layer, wherein the fixed frames of the adjustable vibration isolators vertically penetrate the load-bearing plate; the load-bearing plate is arranged above the ground isolation layer, and the adjustable vibration isolators are evenly distributed on the load-bearing plate, and the lower ends of the adjustable vibration isolators are pressed on the ground isolation layer.

[0019] Beneficial effects of the present invention: The adjustable vibration isolator capable of pre-compression damping and vibration isolation is a new type of adjustable vibration isolator, which includes an external elastic component, an internal elastic component, a connecting plate, a fixed frame, an adjusting screw, and a fastening screw. The external elastic component and the internal elastic component are both vertical elastic telescopic components. The internal elastic component is also arranged inside the upper end of the external elastic component, and the upper elastic end of the external elastic component elastically supports the lower elastic end of the internal elastic component. This not only enables the adjustable vibration isolator to have a compact structure suitable for use in small spaces, but also has a dual buffering and vibration reduction effect, and enables the buffering and vibration reduction effect to be exerted extremely stably. The provision of a pre-tightening screw can achieve the purpose of adjusting the compression of the internal elastic component, so that the use requirements of different environments can be met by making the compression of the internal elastic component and the external elastic component different, which enables the adjustable vibration isolator to have a very large range of application. A fixed frame and a connecting plate are used, and the connecting plate is fixedly arranged on the upper port of the fixed frame, and the outer elastic component and the inner elastic component are arranged in the fixed frame; this not only enables the adjustable vibration isolator to have a very compact structure, but also helps the adjustable vibration isolator to exert a very stable and reliable vibration reduction effect, which helps to ensure that the floating floor structure has excellent sound insulation, vibration isolation and vibration reduction performance. The adjusting screw is vertically threaded through the middle of the connecting plate, and the lower end of the adjusting screw is pressed against the upper elastic end of the inner elastic component, and the threaded end of the fastening screw is vertically passed through the inner hole of the adjusting screw and then threaded with the upper elastic end of the inner elastic component; this can not only meet more adjustment requirements, but also ensure that the adjustment is very convenient, and the overall structure of the adjustable vibration isolator is very stable and reliable, which can make the adjustable vibration isolator have very high reliability and applicability, and it can meet the use requirements in more environments. Therefore, the adjustable vibration isolator can achieve excellent vibration isolation effect in the up and down directions; and when the adjustable vibration isolator is used to form a floor floating structure and relevant vibration-generating equipment is installed on the floor floating structure, it can effectively reduce the jumping amplitude and swing amplitude of the equipment, and the shaking generated by it can disappear in a very short time, which can enable the equipment to operate efficiently for a long time, thereby helping to extend the service life of the equipment; it can withstand extremely large loads and pulse forces without being damaged, which can help to maintain efficient vibration reduction effects for a long time; it can maintain high stability while achieving excellent vibration isolation efficiency, and will not shake even if affected by external forces; it can adjust the vibration reduction strength according to actual needs, thereby avoiding the impact of design, construction, and manufacturers on subsequent use performance, and thus can help to exert extremely excellent sound insulation, vibration isolation and vibration reduction performance.

[0020] The above-mentioned adjustable vibration isolator is used on the adjustable floor floating structure, which can not only form a compact adjustable floor floating structure suitable for use in a small space, but also play a dual buffering and vibration reduction effect, and can help the adjustable floor floating structure to exert a very stable and reliable vibration reduction effect, which can make the adjustable floor floating structure have excellent sound insulation, vibration isolation and vibration reduction performance. The adjustable floor floating structure can meet the use requirements of different environments, which can make the adjustable floor floating structure have a very large range of applications. The adjustable floor floating structure can not only meet more adjustment requirements, but also ensure that the adjustment is very convenient, and can make the overall structure of the adjustable floor floating structure very stable and reliable, which can make the adjustable floor floating structure have very high reliability and applicability, and it can meet the use requirements in more environments. The adjustable floor floating structure can achieve excellent vibration isolation effects in the up and down directions; and when relevant vibration-generating equipment is installed on the adjustable floor floating structure, it can effectively reduce the jumping amplitude and swing amplitude of the equipment, and the shaking generated by it can disappear in a very short time, which can enable the equipment to operate efficiently for a long time, thereby helping to extend the service life of the equipment; it can withstand extremely large loads and pulse forces without being damaged, which can help to maintain efficient vibration reduction effects for a long time; it can maintain high stability while achieving excellent vibration isolation effects, and will not shake even if affected by external forces; it can adjust the vibration reduction strength according to actual needs, thereby avoiding the impact of design, construction, and manufacturers on subsequent use performance, and thus can help to exert extremely excellent sound insulation, vibration isolation and vibration reduction performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the adjustable floor floating structure before jacking up in the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the adjustable floor floating structure after jacking in the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustable vibration isolator in the present invention.

[0024] Figure 4 This is one of the schematic diagrams of the disassembled structure of the adjustable vibration isolator in the present invention.

[0025] Figure 5 This is one of the structural schematic diagrams of the adjustable vibration isolator in the present invention in a cut-away state.

[0026] Figure 6 This is the second structural schematic diagram of the adjustable vibration isolator in the present invention in a cut-away state.

[0027] Figure 7 This is the second schematic diagram of the disassembled structure of the adjustable vibration isolator in the present invention.

[0028] Figure 8It is a schematic diagram of the three-dimensional structure of the fixed frame in the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the fixed frame in the present invention in a cut-away state.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the connecting plate body in the present invention.

[0031] Fig.11 It is a structural schematic diagram of the connecting plate body in the cut-away state in the present invention.

[0032] Fig.12 It is a schematic diagram of the three-dimensional structure of the adjusting spiral tube in the present invention.

[0033] Fig.13 It is a structural schematic diagram of the cutaway state of the regulating spiral tube in the present invention.

[0034] Fig.14 It is a schematic diagram of the three-dimensional structure of the connecting tube in the present invention.

[0035] Fig.15 It is a structural schematic diagram of the connecting tube in the cut-away state in the present invention.

[0036] Fig.16 It is a schematic diagram of the three-dimensional structure of the connecting column in the present invention.

[0037] Fig.17 It is a schematic structural diagram of the connecting column in the cut-away state in the present invention.

[0038] Fig.18 It is a schematic diagram of the three-dimensional structure of the protective cover plate in the present invention.

[0039] Fig.19 It is a schematic structural diagram of the protective cover plate in the cut-away state in the present invention.

[0040] Fig. 20 It is a schematic diagram of the three-dimensional structure of the chassis in the present invention.

[0041] Fig.21 It is a schematic diagram of the three-dimensional structure of the core vibration reduction component in the present invention.

[0042] Fig. 22 It is a schematic structural diagram of the core vibration reduction component in the present invention in a cut-away state.

[0043] Fig.23 It is a three-dimensional structural schematic diagram of the series vibration reduction mechanism in the present invention.

[0044] Fig.24 It is a schematic diagram of the three-dimensional structure of the series vibration reduction mechanism in the present invention in a cut-away state.

[0045] Fig.25It is a schematic diagram of the three-dimensional structure of the parallel vibration reduction mechanism in the present invention.

[0046] Fig.26 It is a three-dimensional structural schematic diagram of the parallel vibration reduction mechanism in the present invention in a cut-away state.

[0047] Fig. 27 It is a schematic diagram of the three-dimensional structure of the multi-external spring type vibration reduction mechanism in the present invention.

[0048] Fig.28 It is a schematic structural diagram of the cutaway state of the multi-outer spring type vibration reduction mechanism in the present invention.

[0049] Fig.29 This is one of the three-dimensional structural schematic diagrams of the vibration reduction mechanism in the present invention.

[0050] Fig.30 This is the second schematic diagram of the three-dimensional structure of the vibration reduction mechanism in the present invention.

[0051] Fig.31 This is the third schematic diagram of the three-dimensional structure of the vibration reduction mechanism in the present invention. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] Secondly, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. Embodiment 1:

[0055] like Figures 3 to 7As shown, the adjustable vibration isolator capable of pre-compression damping and vibration isolation described in the present invention comprises an outer elastic component 31, an inner elastic component 32, a connecting plate body 33, a fixing frame body 34, an adjusting screw 35, and a fastening screw 36, wherein the outer elastic component 31 and the inner elastic component 32 are both vertical elastic telescopic components, the inner elastic component 32 is arranged in the upper end of the outer elastic component 31, and the upper elastic end of the outer elastic component 31 elastically supports the lower elastic end of the inner elastic component 32, and a pre-tightening screw 37 capable of relative vertical sliding is penetrated on the upper elastic end of the inner elastic component 32, and the threaded end of the pre-tightening screw 37 is directed to The lower part is screwed on the lower elastic end of the outer elastic component 31, and the nut end of the pre-tightening screw 37 can press downward on the upper elastic end of the inner elastic component 32. The connecting plate body 33 is fixedly arranged on the upper port of the fixed frame body 34. The outer elastic component 31 and the inner elastic component 32 are both arranged in the fixed frame body 34. The adjusting screw 35 is screwed vertically through the middle part of the connecting plate body 33, and the lower end of the adjusting screw 35 is pressed on the upper elastic end of the inner elastic component 32. The threaded end of the fastening screw 36 vertically passes through the inner hole of the adjusting screw 35 downward and is screwed with the upper elastic end of the inner elastic component 32.

[0056] The adjustable vibration isolator capable of pre-compression damping and vibration isolation is a new type of adjustable vibration isolator, which includes an outer elastic component 31, an inner elastic component 32, a connecting plate body 33, a fixed frame body 34, an adjusting screw 35, and a fastening screw 36. The outer elastic component 31 and the inner elastic component 32 are both vertical elastic telescopic components. The inner elastic component 32 is arranged inside the upper end of the outer elastic component 31, and the upper elastic end of the outer elastic component 31 elastically supports the lower elastic end of the inner elastic component 32. This not only enables the adjustable vibration isolator to have a compact structure suitable for use in a small space, but also achieves a dual buffering and vibration reduction effect, and enables the buffering and vibration reduction effect to be exerted extremely stably.

[0057] The pre-tightening screw 37 can be set to adjust the compression of the inner elastic component 32. This can meet the use requirements of different environments by making the compression of the inner elastic component 32 different from that of the outer elastic component 31, which can make the adjustable vibration isolator have a very wide range of application.

[0058] A fixed frame 34 and a connecting plate 33 are used, and the connecting plate 33 is fixedly arranged on the upper port of the fixed frame 34, and the outer elastic component 31 and the inner elastic component 32 are arranged in the fixed frame 34; this not only enables the adjustable vibration isolator to have a very compact structure, but also helps the adjustable vibration isolator to exert a very stable and reliable vibration reduction effect, which helps to ensure that the floor floating structure has excellent sound insulation, vibration isolation and vibration reduction performance.

[0059] The adjusting screw 35 is vertically penetrated and screwed to the middle part of the connecting plate body 33, and the lower end of the adjusting screw 35 is pressed against the upper elastic end of the inner elastic component 32, and the threaded end of the fastening screw 36 is vertically passed through the inner hole of the adjusting screw 35 and then screwed to the upper elastic end of the inner elastic component 32; this can not only meet more adjustment requirements, but also ensure that the adjustment is very convenient, and the overall structure of the adjustable vibration isolator can be very stable and reliable, which can make the adjustable vibration isolator have very high reliability and applicability, and can meet the use requirements in more environments.

[0060] Therefore, the adjustable vibration isolator can achieve excellent vibration isolation effect in the up and down directions.

[0061] When the adjustable vibration isolator is used to form a floor floating structure and relevant vibration-generating equipment is installed on the floor floating structure, it can effectively reduce the jumping amplitude and swing amplitude of the equipment, and the shaking generated by it can disappear in a very short time, which can enable the equipment to operate efficiently for a long time, thereby helping to extend the service life of the equipment; it can withstand extremely large loads and pulse forces without being damaged, which can help to maintain a high-efficiency vibration reduction effect for a long time; it can maintain high stability while achieving excellent vibration isolation efficiency, and will not shake even if it is affected by external forces; it can adjust the vibration reduction strength according to actual needs, thereby avoiding the influence of design, construction, and manufacturers on subsequent use performance, and thus can help to exert extremely excellent sound insulation, vibration isolation and vibration reduction performance.

[0062] The adjustable vibration isolator can constitute an adjustable vibration isolator with pre-compression damping vibration isolation function, which can be applied to floor floating structures. Specifically: the fixed frame 34 vertically penetrates the floor setting of the floor floating structure, which can constitute an adjustable floor floating structure. The adjustable floor floating structure can be used in the fields of construction engineering technology and electromechanical equipment vibration isolation, and can be specifically used in the fields of equipment vibration isolation, floor floating vibration isolation, and overall building vibration isolation; and can obtain very good sound insulation, vibration isolation and vibration elimination effects.

[0063] like Figures 5 to 7 , Fig.14 , Fig.15 and Fig. 20As shown, the outer elastic component 31 includes a chassis 311, an outer spring 312, and a connecting tube 313. A positioning groove 3111 is provided on the top surface of the chassis 311, and a connecting protrusion 3112 is provided on the middle part of the bottom of the positioning groove 3111. The connecting tube 313 is vertically arranged above the chassis 311. A downward pressing convex ring 3131 is provided on the outer circumferential surface of the upper end of the connecting tube 313. A positioning ring groove is provided on the bottom surface of the downward pressing convex ring 3131. 3132, the outer spring 312 is sleeved on the connecting tube 313, and the upper and lower ends of the outer spring 312 are elastically pressed in the positioning ring groove 3132 and the positioning groove 3111 respectively, and a supporting convex ring 3133 is arranged on the inner circumferential surface of the lower end of the connecting tube 313, and the supporting convex ring 3133 is arranged around the connecting convex column 3112, and the supporting convex ring 3133 also supports the inner elastic component 32, and the pre-tightening screw 37 is screwed on the connecting convex column 3112. Such an outer elastic component 31 is very simple and reliable, which is not only convenient for manufacturing, but also can stably play an elastic support effect, so as to be conducive to playing a very stable and reliable elastic buffering and vibration reduction effect, and then help to ensure that the adjustable vibration isolator has a very high sound insulation, vibration isolation and vibration reduction performance.

[0064] like Fig. 20 , Figures 27 to 31 As shown, the chassis 311 can be square, round or any other shape; the pre-tightening screw 37 is a hexagon socket screw or other screw that can meet the installation requirements of the location.

[0065] like Fig. 27 and Fig.28 As shown, a plurality of outer springs 312 may be arranged in a circular array around the connecting tube 313, and the upper end of each outer spring 312 elastically supports the connecting tube 313, which can also well meet the needs of actual use.

[0066] The chassis 311 is made of various materials such as cast iron, steel, copper, rubber or plastic, and can be cast in one piece, or can be combined by cutting, welding, bonding, etc. of different materials.

[0067] like Fig.14 and Fig.15 As shown, the connecting tube 313, the pressing protruding ring 3131 and the supporting protruding ring 3133 are made of various materials such as cast iron, steel, copper, rubber, plastic, etc. They can be integrally cast or assembled by cutting, welding, bonding, etc. of different materials.

[0068] like Figures 5 to 7 , Fig.16 and Fig.17As shown, the inner elastic component 32 includes an inner spring 321 and a connecting column 322. The lower end of the connecting column 322 is vertically inserted into the inner hole 3134 of the connecting tube 313. A vertically penetrating countersunk hole 3221 is provided on the top surface of the connecting column 322. The large hole of the countersunk hole 3221 is a threaded hole 3222. A limiting ring groove 3223 arranged around the countersunk hole 3221 is provided on the bottom surface of the connecting column 322. The inner spring 321 is vertically arranged in the inner The inner spring 321 is placed in the hole 3134, and the upper and lower ends of the inner spring 321 are elastically pressed against the limiting ring groove 3223 and the supporting convex ring 3133 respectively. The pre-tightening screw 37 is arranged in the countersunk hole 3221, and the threaded end of the pre-tightening screw 37 is passed downward through the countersunk hole 3221 and the inner hole of the supporting convex ring 3133 in sequence, and then is screwed with the connecting convex column 3112. The adjusting screw 35 is pressed against the top surface of the connecting column 322, and the fastening screw 36 is screwed on the threaded hole 3222. Such an inner elastic component 32 is very simple and reliable, which is not only convenient for manufacturing, but also helps the inner elastic component 32 to play a very stable and reliable buffering and vibration reduction effect, thereby helping to ensure that the adjustable vibration isolator has very high sound insulation, vibration isolation and vibration reduction performance.

[0069] The outer spring 312 and the inner spring 321 are made of various elastic materials such as carbon steel, alloy steel or stainless steel. The stiffness, spring diameter, wire diameter, height and compression of the outer spring 312 and the inner spring 321 can be customized according to actual use.

[0070] The connecting column 322 is made of cast iron, steel, copper, rubber, plastic and other materials. It can be cast in one piece or can be formed by cutting, welding, bonding and other combinations of different materials. The connecting column 322 can be square, round or any other shape.

[0071] like Figures 5 to 7 As shown, a protective cover plate 38 is sandwiched between the connecting plate body 33 and the connecting column 322, the adjusting screw 35 is pressed on the protective cover plate 38, and the fastening screw 36 is arranged through the protective cover plate 38. This can protect and improve the load-bearing capacity, thereby helping to further improve the reliability and applicability of the adjustable vibration isolator.

[0072] The protective cover plate 38 is made of various materials such as cast iron, steel, copper, rubber or plastic, and can be integrally cast or assembled by cutting, welding, bonding, etc. of different materials.

[0073] like Figures 21 to 31As shown, when the outer elastic component 31 and the inner elastic component 32 are assembled together, they can jointly constitute the core vibration reduction component 10, and the core vibration reduction component 10 can also be assembled with other components to form various styles of vibration reduction mechanisms. When the protective cover plate 38 is placed on the inner elastic component 32, the screw rod 20 is screwed on the threaded hole 3222, and the upper end of the screw rod 20 is passed through the protective cover plate 38 upward, and the gasket 30 and the nut 40 are sequentially mounted on the upper end of the screw rod 20, and the nut 40 is screwed with the screw rod 20, and the upper gasket 30 is pressed tightly on the protective cover plate 38. The vibration reduction mechanism thus constituted can be assembled into various styles of vibration reduction mechanisms according to the different shapes of the components used, so that it is convenient to assemble a suitable vibration reduction mechanism according to different use environments. The screw rod 20 can be an ordinary screw rod or a high-strength screw rod. This can help to stably meet other vibration reduction requirements, thereby stably meeting other use requirements.

[0074] like Figure 5 , Figure 6 , Fig.18 and Fig.19 As shown, a convex ring portion 381 arranged around the connecting column 322 is provided on the bottom surface of the protective cover plate 38; a buffer gap 382 is reserved between the convex ring portion 381 and the downward pressing convex ring 3131, or the convex ring portion 381 presses on the top surface of the downward pressing convex ring 3131. The convex ring portion 381 can enhance the structural strength of the protective cover plate 38, so as to play a better protective role. The reserved buffer gap 382 can make the inner spring 321 and the outer spring 312 form a series buffering and vibration reduction structure; the convex ring portion 381 is pressed on the downward pressing convex ring 3131, which can make the inner spring 321 and the outer spring 312 form a parallel buffering and vibration reduction structure; this can facilitate meeting different usage requirements.

[0075] like Fig.23 and Fig.24 As shown, when the screw rod 20 is used and the inner spring 321 and the outer spring 312 are arranged in series, the assembly order of the components of the adjustable vibration isolator is: chassis 311, outer spring 312, connecting tube 313, inner spring 321, connecting column 322, pre-tightening screw 37, protective cover plate 38, screw rod 20. At this time, the inner spring 321 can be pre-stressed by screwing the pre-tightening screw 37; the protective cover plate 38 bears the load and transmits the load to the supporting ground or component through the connecting column 322, the inner spring 321, the connecting tube 313, the outer spring 312 and the chassis 311; the screw rod 20 is screwed on the connecting column 322 and fastened by the nut 40, and the equipment or pipeline is installed on the screw rod 20 through the code piece; this can well meet the needs of actual use.

[0076] like Fig.25 and Fig.26As shown, when the screw rod 20 is used and the inner spring 321 and the outer spring 312 are arranged in parallel, the assembly order of the components of the adjustable vibration isolator is: chassis 311, outer spring 312, connecting tube 313, inner spring 321, connecting column 322, pre-tightening screw 37, protective cover plate 38, screw rod 20. At this time, the inner spring 321 can be pre-stressed by screwing the pre-tightening screw 37; the protective cover plate 38 bears the load and transmits the load to the supporting ground or component through the connecting column 322, the inner spring 321, the connecting tube 313, the outer spring 312 and the chassis 311; the screw rod 20 is screwed on the connecting column 322 and fastened by the nut 40, and the equipment or pipeline is installed on the screw rod 20 through the code piece; this can well meet the needs of actual use.

[0077] like Fig.21 and Fig. 22 As shown, when the screw rod 20 and the fastening screw 36 are not provided on the adjustable vibration isolator, the adjustable vibration isolator is in a spring damping or upward vibration isolation state. At this time, the assembly order of the components of the adjustable vibration isolator is: chassis 311, outer spring 312, connecting tube 313, inner spring 321, connecting column 322, pre-tightening screw 37; screwing the pre-tightening screw 37 can pre-compress the inner spring 321; the inner spring 321, the outer spring 312 and the connecting tube 313 bear the load, and the load is transmitted to the supporting ground or component through the connecting tube 313, the outer spring 312 and the chassis 311; continue to screw the pre-tightening screw 37 so that the compression of the inner spring 321 is greater than or equal to the outer spring 312, so as to achieve the effect of spring damping and upward vibration isolation.

[0078] like Figure 5 , Fig.12 and Fig.13 As shown, a spanner hole 351 is provided on the top surface of the adjusting screw 35, a through hole 352 is provided at the bottom of the spanner hole 351, the nut end of the fastening screw 36 is placed in the spanner hole 351, and the threaded end of the fastening screw 36 is passed downward through the through hole 352, and a spanner action groove 353 is reserved between the outer circumferential surface of the threaded end of the fastening screw 36 and the hole wall of the spanner hole 351. This not only obtains a compact structure, but also facilitates the assembly, disassembly and adjustment of the adjusting screw 35 and the fastening screw 36, thereby helping to further improve the applicability of the adjustable vibration isolator.

[0079] like Figure 4 As shown, in the actual manufacturing process, the upper end of the adjusting screw 35 can also be made into a wrench action part 354. At this time, the wrench hole 351 can be made into an ordinary round hole for the nut end of the fastening screw 36 to be hidden. Such an adjusting screw 35 can also meet normal adjustment requirements.

[0080] like Fig.12 and Fig.13As shown, the adjusting screw tube 35 is a threaded tube with an external thread at its lower end. The inside of the adjusting screw tube 35 may or may not have a thread. This can meet the screw connection installation requirements of the adjusting screw tube 35.

[0081] like Figures 5 to 7 As shown, the fastening screw 36 is a hexagon socket screw, and the nut end of the fastening screw 36 is cylindrical. This can not only meet the normal adjustment requirements of the fastening screw 36, but also facilitate the relevant wrench to act in the wrench action slot 353, thereby meeting the actual use requirements very well.

[0082] like Figures 7 to 9 As shown, a fixing convex ring 341 is provided on the upper inner wall of the fixing frame 34, the connecting plate 33 is embedded in the inner hole of the fixing frame 34, and the four sides of the connecting plate 33 are overlapped on the fixing convex ring 341, and the four ends of the connecting plate 33 are fixed on the fixing convex ring 341 by locking screws 342 respectively; a vibration isolation sealing gasket 343 is clamped between the connecting plate 33 and the fixing convex ring 341. This can help to accurately and stably fix the connecting plate 33 on the fixing frame 34, thereby helping to improve the stability and reliability of the assembly. The provision of the vibration isolation sealing gasket 343 can not only help the locking screw 342 to achieve stable locking, but also play a role in vibration isolation sealing, which can help to greatly reduce the probability of the outer spring 312 and the inner spring 321 being adversely affected by the outside world, thereby helping to further improve the reliability and applicability of the adjustable vibration isolator.

[0083] The fixed frame 34 is a circular, square or rectangular frame. The shape of the connecting plate 33 matches the inner hole of the fixed frame 34. The fixed frame 34 is welded by related components or is an integrally formed structure.

[0084] like Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, connecting protruding rings 344 are provided on the outer circumferential surfaces of the upper and lower ends of the fixed frame 34, and vertically arranged connecting strips 345 are welded and fixed to the outer walls of the four sides of the fixed frame 34, and the upper and lower ends of the connecting strips 345 are bent to form horizontal strips 346 perpendicular to the outer wall of the fixed frame 34, and the outer ends of the two horizontal strips 346 are bent upward to form vertical strips 347. This can greatly enhance the assembly strength of the fixed frame 34 and the floor floating structure through an extremely simple structure, thereby helping to further improve the reliability and applicability of the adjustable vibration isolator.

[0085] The connecting bar 345 is a steel bar. In the actual manufacturing process, the connecting bar 345 can also be replaced by a steel plate, which can also play a very good role in enhancing the assembly strength.

[0086] like Figure 5 , Figure 6 , Fig.10 and Fig.11 As shown, a convex plate portion 331 is provided on the bottom surface of the connecting plate body 33, and the convex plate portion 331 presses on the upper elastic end of the inner elastic component 32. A vertically penetrating screw hole 332 is provided in the middle of the connecting plate body 33, and the lower end of the screw hole 332 vertically penetrates the convex plate portion 331, and the screw hole 332 is screwed for the adjusting screw tube 35. This can effectively enhance the structural strength of the elastic action point, thereby helping to further improve the reliability and applicability of the adjustable vibration isolator.

[0087] When the floating floor structure needs to be lifted to a suitable height, the floating floor structure can be raised to a suitable height by screwing the adjusting screw 35. Then, the tightening screw 36 is screwed to fix the adjusting screw 35 and the connecting column 322, which can effectively increase the stability of the inner spring 321 and the stability of the adjustable vibration isolator.

[0088] When the spring needs to be replaced, first unscrew the locking screw 342, the fastening screw 36, and the adjusting screw 35, so that the connecting plate 33 can be removed; then unscrew the pre-tightening screw 37; then the inner spring 321, the outer spring 312 or other components of the adjustable vibration isolator can be replaced; such an adjustable vibration isolator is very convenient to maintain.

[0089] On the adjustable vibration isolator, the outer elastic component 31 and the inner elastic component 32 together constitute the core spring vibration isolation structure of the adjustable vibration isolator. In actual use, the floor floating structure can be lifted by screwing the adjusting screw 35 in the fixed frame 34, so that the floor floating structure is suspended as a whole to form a vibration isolation effect. At the same time, the assembly structure of the core spring vibration isolation structure can be adjusted to allow the springs to form a series or parallel effect. When the springs are installed in series, the overall height of the floating structure can be reduced to meet the height requirements of the decorative surface. Under overload conditions, the springs are connected in series to parallel, increasing the load capacity of the springs, protecting the spring shock absorbers, and reducing the settlement of the entire floating structure. One or more springs can be pre-stressed by pre-screwing the pre-tightening screws 37 to form a damping effect, increase the stability of the floating structure, and reduce the vibration amplitude of the floating platform, so that the floating structure has a vibration isolation effect in both the upper and lower directions. The pre-tightening screw 37 is screwed in advance, and the compression amount of the spring is preset to optimize and improve the vibration isolation efficiency; the floor floating installation structure also has the above advantages, and the construction and installation are simple, and the spring is easy to replace.

[0090] The adjustable floor floating structure formed by the adjustable vibration isolator can be applied in the fields of construction engineering technology and mechanical and electrical equipment vibration isolation. Compared with the traditional spring vibration isolator, the vibration isolation structure of the present invention has the following advantages: the core spring vibration isolation structure can be adjusted to achieve different functions in different assembly forms such as series, parallel, and damping; the floor floating installation structure is simple to construct and install, and the spring is easy to replace. Embodiment 2:

[0091] like Figures 1 to 4 As shown, an adjustable floor floating structure includes several adjustable vibration isolators 3 described in Example 1, and also includes a bearing plate 1 and a ground isolation layer 2. The fixed frame 34 of each adjustable vibration isolator 3 vertically penetrates the bearing plate 1; the bearing plate 1 is arranged above the ground isolation layer 2, and the adjustable vibration isolators 3 are evenly distributed on the bearing plate 1, and the lower end of each adjustable vibration isolator 3 is pressed on the ground isolation layer 2.

[0092] The above-mentioned adjustable vibration isolator is used on the adjustable floor floating structure, which can not only form a compact adjustable floor floating structure suitable for use in a small space, but also play a dual buffering and vibration reduction effect, and can help the adjustable floor floating structure to exert a very stable and reliable vibration reduction effect, which can make the adjustable floor floating structure have excellent sound insulation, vibration isolation and vibration reduction performance. The adjustable floor floating structure can meet the use requirements of different environments, which can make the adjustable floor floating structure have a very large range of applications. The adjustable floor floating structure can not only meet more adjustment requirements, but also ensure that the adjustment is very convenient, and can make the overall structure of the adjustable floor floating structure very stable and reliable, which can make the adjustable floor floating structure have very high reliability and applicability, and it can meet the use requirements in more environments. The adjustable floor floating structure can achieve excellent vibration isolation effects in the up and down directions; and when relevant vibration-generating equipment is installed on the adjustable floor floating structure, it can effectively reduce the jumping amplitude and swing amplitude of the equipment, and the shaking generated by it can disappear in a very short time, which can enable the equipment to operate efficiently for a long time, thereby helping to extend the service life of the equipment; it can withstand extremely large loads and pulse forces without being damaged, which can help to maintain efficient vibration reduction effects for a long time; it can maintain high stability while achieving excellent vibration isolation effects, and will not shake even if affected by external forces; it can adjust the vibration reduction strength according to actual needs, thereby avoiding the impact of design, construction, and manufacturers on subsequent use performance, and thus can help to exert extremely excellent sound insulation, vibration isolation and vibration reduction performance.

[0093] The ground isolation layer 2 is a plastic film, a plastic sheet, a waterproof coiled material, a wooden formwork, etc. In this way, the direct contact between the load-bearing plate 1 and the adjustable vibration isolator 3 and the ground can be avoided, thereby achieving the effect of isolation and protection.

[0094] The load-bearing plate 1 is any load-bearing, vibration-isolating or damping plate-like structure such as cast-in-place reinforced concrete, metal plate, damping inert block, etc., which can meet the actual manufacturing and use requirements.

[0095] When the load-bearing plate 1 needs to be lifted to a suitable height, the load-bearing plate 1 can be brought to a suitable height by screwing the adjusting screw 35. Then, the tightening screw 36 is screwed to fix the adjusting screw 35 and the connecting column 322, which can effectively increase the stability of the inner spring 321 and the stability of the adjustable vibration isolator 3. Embodiment three:

[0096] A method for installing the adjustable floor floating structure according to the second embodiment comprises the following steps: a. Prepare the load-bearing plate 1, the ground isolation layer 2, and several adjustable vibration isolators 3; b. Lay the ground isolation layer 2; c. Install adjustable vibration isolator 3; d. Install the load-bearing plate 1; e. Rotate the adjusting screw 35 to adjust the height position of the load-bearing plate 1.

[0097] The installation method can facilitate the rapid and stable assembly of a high-quality adjustable floor floating structure, and can ensure that the adjustable floor floating structure has extremely good sound insulation, vibration isolation and vibration reduction performance, which not only makes the construction of the adjustable floor floating structure very convenient, but also ensures that the constructed adjustable floor floating structure has very high reliability.

[0098] When the load-bearing plate 1 is formed by cast-in-place reinforced concrete, a ground isolation layer 2 is first laid on the ground position where the adjustable floor floating structure is to be installed; then an upper casting trough (not shown in the figure) is set on the ground isolation layer 2; then a number of adjustable isolators 3 are evenly arranged in the casting trough (not shown in the figure), and the bottom surface of the fixed frame 34 on each adjustable isolator 3 is pressed on the ground isolation layer 2, a steel frame is placed in the casting trough, and each adjustable isolator 3 is inserted into the steel frame, and one, two or three of the connecting bars 345, horizontal bars 346, and vertical bars 347 on each adjustable isolator 3 are welded and fixed together with the steel frame; then concrete is cast in the casting trough; after the concrete solidifies, the reinforced concrete forms the load-bearing plate 1, and then the adjustable isolators 3 are adjusted to raise the height position of the load-bearing plate 1, and then the use requirements can be met. This can form an extremely stable and reliable load-bearing plate 1, and can ensure that the connection between the adjustable vibration isolator 3 and the load-bearing plate 1 is extremely stable and reliable, thereby being able to exert extremely stable and reliable sound insulation, vibration isolation and vibration reduction performance for a long time.

[0099] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. An adjustable vibration isolator capable of pre-compression damping and vibration isolation, characterized in that: The invention comprises an outer elastic component, an inner elastic component, a connecting plate body, a fixed frame body, an adjusting screw and a fastening screw, wherein the outer elastic component and the inner elastic component are both vertical elastic telescopic components, the inner elastic component is arranged in the upper end of the outer elastic component, and the upper elastic end of the outer elastic component elastically supports the lower elastic end of the inner elastic component, the upper elastic end of the inner elastic component is penetrated by a pre-tightening screw which can slide relatively vertically, and the threaded end of the pre-tightening screw is screwed downwardly on the lower elastic end of the outer elastic component, the connecting plate body is fixedly arranged on the upper port of the fixed frame body, the outer elastic component and the inner elastic component are both arranged in the fixed frame body, the adjusting screw is screwed vertically through the middle part of the connecting plate body, and the lower end of the adjusting screw is pressed on the upper elastic end of the inner elastic component, and the threaded end of the fastening screw vertically passes through the inner hole of the adjusting screw downward and is screwed with the upper elastic end of the inner elastic component.

2. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 1, characterized in that: The external elastic component includes a chassis, an external spring, and a connecting tube. A positioning groove is provided on the top surface of the chassis, and a connecting boss is provided on the middle part of the bottom of the positioning groove. The connecting tube is vertically arranged above the chassis, and a downward pressure convex ring is provided on the outer circumferential surface of the upper end of the connecting tube, and a positioning ring groove is provided on the bottom surface of the downward pressure convex ring. The external spring is sleeved on the connecting tube, and the upper and lower ends of the external spring are elastically pressed in the positioning ring groove and the positioning groove respectively. A supporting convex ring is provided on the inner circumferential surface of the lower end of the connecting tube, and the supporting convex ring is arranged around the connecting boss, and the supporting convex ring also supports the internal elastic component, and the pre-tightening screw is screwed on the connecting boss.

3. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 2, characterized in that: The inner elastic component includes an inner spring and a connecting column. The lower end of the connecting column is vertically inserted into the inner hole of the connecting tube. A vertically penetrating countersunk hole is provided on the top surface of the connecting column. The large hole of the countersunk hole is a threaded hole. A limiting ring groove arranged around the countersunk hole is provided on the bottom surface of the connecting column. The inner spring is vertically arranged in the inner hole, and the upper and lower ends of the inner spring are elastically pressed against the limiting ring groove and the supporting convex ring respectively. The pre-tightening screw is arranged in the countersunk hole, and the threaded end of the pre-tightening screw is downwardly passed through the countersunk hole and the inner hole of the supporting convex ring in turn and then is screwed into the connecting convex column. The adjusting screw is pressed on the top surface of the connecting column, and the fastening screw is screwed into the threaded hole.

4. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 3, characterized in that: A protective cover plate is clamped between the connecting plate body and the connecting column, the adjusting screw is pressed on the protective cover plate, and the fastening screw is arranged through the protective cover plate.

5. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 4, characterized in that: A convex ring portion is arranged on the bottom surface of the protective cover plate and is arranged around the connecting column; a buffer gap is reserved between the convex ring portion and the downward pressing convex ring, or the convex ring portion is pressed on the top surface of the downward pressing convex ring.

6. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 1, characterized in that: A wrench hole is provided on the top surface of the adjusting screw tube, a through hole is provided at the bottom of the wrench hole, the nut end of the fastening screw is placed in the wrench hole, and the threaded end of the fastening screw is passed downward through the through hole, and a wrench action groove is reserved between the outer circumferential surface of the threaded end of the fastening screw and the hole wall of the wrench hole.

7. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 1, characterized in that: A fixing convex ring is arranged on the upper inner wall of the fixing frame, the connecting plate body is embedded in the inner hole of the fixing frame body, and the four sides of the connecting plate body are overlapped on the fixing convex ring, and the four ends of the connecting plate body are fixed to the fixing convex ring by locking screws respectively; a vibration isolation sealing gasket is clamped between the connecting plate body and the fixing convex ring.

8. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 1, characterized in that: Connecting convex rings are arranged on the outer circumferential surfaces of the upper and lower ends of the fixed frame, and vertically arranged connecting strips are welded and fixed on the outer walls of the four sides of the fixed frame, and the upper and lower ends of the connecting strips are bent to form horizontal strips perpendicular to the outer wall of the fixed frame, and the outer ends of the two horizontal strips are bent upward to form vertical strips.

9. The adjustable vibration isolator capable of pre-compression damping and vibration isolation according to claim 1, characterized in that: A convex plate portion is arranged on the bottom surface of the connecting plate body, and the convex plate portion presses on the upper elastic end of the inner elastic component.

10. An adjustable floor floating structure, characterized in that: The invention comprises the adjustable vibration isolators as claimed in any one of claims 1 to 9, and further comprises a load-bearing plate and a ground isolation layer, wherein the fixed frames of the adjustable vibration isolators vertically penetrate the load-bearing plate; the load-bearing plate is arranged above the ground isolation layer, and the adjustable vibration isolators are evenly distributed on the load-bearing plate, and the lower ends of the adjustable vibration isolators are pressed on the ground isolation layer.

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