CN204875500U - Subtract isolation bearing with displacement locking device - Google Patents
Subtract isolation bearing with displacement locking device Download PDFInfo
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- CN204875500U CN204875500U CN201520599761.3U CN201520599761U CN204875500U CN 204875500 U CN204875500 U CN 204875500U CN 201520599761 U CN201520599761 U CN 201520599761U CN 204875500 U CN204875500 U CN 204875500U
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- seat board
- base plate
- upper base
- locking device
- vibration absorption
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Abstract
The utility model belongs to bridge and building structure field provide a subtract isolation bearing with displacement locking device. The subtract isolation bearing with displacement locking device that proposes including roof (1), go up bedplate (3), well bedplate (6), time bedplate (10), stop device and displacement locking device, displacement locking device pops out mechanism (16) including locking groove (15) and locking, the locking pop out mechanism (16) for lie in bedplate although bridge to both ends, mechanism (16) is popped out including lockplate (20), stop pin (21), tightly decide component (18) and elastic element (19) to the locking, the tight little diameter section through -hole threaded connection who decides component (18) and lockplate (20) to go up the ladder through -hole is tightly deciding the locking of elastic element (19) elasticity between component (18) and stop pin (21). The utility model discloses a subtract the purpose that isolation bearing locked when the earthquake takes place, what promoted the support subtracts the shock insulation effect.
Description
Technical field
The utility model belongs to bridge and building structure field, relates to a kind of vibration absorption and isolation support with displacement locking device.
Background technology
Bridge, as the important component part of transportation lifeline engineering, is the hinge of communications and transportation, in earthquake relief work and post-disaster reconstruction, plays key effect.Bridge collapse not only causes the structural failure of bridge self, has also cut off the life passage of earthquake-stricken area, rescue and relief work has been hindered or greatly delays, and then causes original avoidable loss.Subtract the new technology subtracting shock insulation control for bridge construction that seismic isolation technology is rising in recent years, effectively can alleviate the disaster that earthquake causes to bridge construction.Friction pendulum vibration absorption and isolation support is applied to the novel seismic isolation device that bridge construction subtracts vibration-isolating system, have that structure is simple, mathematics physics model is clear and definite, to subtract isolation property excellent and from the advantage of replying, be widely applied having in the railroad bridge and highway bridge subtracting shock insulation demand in recent years.
Friction pendulum vibration absorption and isolation support utilizes pendulum principle to realize shock insulation function by the sphere swing prolongation beam body period of motion, realizes shock-absorbing function by the friction earthquake energy of sliding interface.Friction pendulum vibration absorption and isolation support two kinds of structures respectively as shown in Figure 1 and Figure 2.
The vibration absorption and isolation support of friction pendulum shown in Fig. 1 structure is primarily of a few part composition of seat board 6, shock insulation block 7, shear pin 8, damping slide plate 9, lower seat board 10 and anchor bolt 11 etc. in top board 1, plane slide plate 2, upper base plate 3, dust ring 4, sphere slide plate 5; Top board 1 and plane slide plate 2 form the flat frictional pair of bearing, realize the horizontal movement of bearing when normal operation; The pivoting friction that upper base plate 3 and sphere slide plate 5 form bearing is secondary, realizes the vertical rotating of bearing when normal operation; What middle seat board 6 and damping slide plate 9 formed bearing subtracts shock insulation friction pair, and what realize bearing when earthquake occurs subtracts shock insulation function.
Friction pendulum shown in Fig. 2 subtracts shock insulation and props up structure primarily of a few part composition such as lower seat board 10, shock insulation block 7, shear pin 8, middle seat board 6, the nonmetal slide plate of sphere 14, sphere stainless steel slide plate 13, upper base plate 3, plane stainless steel slide plate 12, plane slide plate 2, top board 1 and anchor bolt 11.Be covered on the flat frictional pair that plane stainless steel slide plate on top board 1 12 and the plane slide plate 2 being fixed on upper base plate 3 form bearing, realize the horizontal movement of bearing when normal operation; Be covered on upper base plate, sphere stainless steel slide plate 13 and the nonmetal slide plate 14 of sphere be fixed on spherical crown liner plate of damping base concave spherical surface form the rotation of bearing and subtract shock insulation friction pair, realize the vertical rotating of bearing when normal operation, what realize bearing when earthquake occurs subtracts shock insulation function.
Existing friction pendulum vibration absorption and isolation support realizes normal horizontal sliding when normal operation by flat frictional pair, and the shock insulation block be arranged in damping base plays spacing effect of contraction and bears the horizontal force from bridge superstructure.When an earthquake occurs; the active force of horizontal direction exceedes the ultimate lateral bearing capacity of shock insulation block, and the shear pin be arranged on shock insulation block is cut off, and the spacing effect of contraction of shock insulation block is removed; bearing carries out pendulum model slip thus reaches the object subtracting shock insulation, and then the safety of protection bridge construction.
But in actual applications, when an earthquake occurs, existing friction pendulum vibration absorption and isolation support flat frictional pair is in free skating shifting state, cause the shear pin be arranged on local direction shock insulation block to cut off and shock insulation block position-limiting action remove occur postpone, reduce the damping and isolation effect of bearing, thus affect bearing and subtract shock insulation function and cannot fully play a role according to design idea.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of vibration absorption and isolation support with displacement locking device.
The utility model adopts following technical scheme for completing above-mentioned purpose:
Have a vibration absorption and isolation support for displacement locking device, described vibration absorption and isolation support includes top board, upper base plate, middle seat board, lower seat board and stopping means; The upper surface of described lower seat board is sphere; Upper surface, the lower surface of described middle seat board are sphere, and have groove; The lower surface of described upper base plate is the sphere coordinated with the upper surface of middle seat board; The lower surface of described middle seat board and the upper surface of lower seat board, the upper surface of described middle seat board and the lower surface of upper base plate form the rotating mechanism of bearing, the nonmetal slide plate of sphere that middle seat board upper surface, lower surface have respectively with lower seat board on have sphere stainless steel slide plate, that sphere stainless steel slide plate that upper base plate has forms pivoting friction is secondary, in order to adapt to the rotation demand of top girder construction; The upper surface of described upper base plate and the lower plane of top board form the planar slide mechanism of bearing, the plane stainless steel slide plate that the nonmetal slide plate of plane had in the groove of upper base plate upper surface and top board lower plane have forms planar slide friction pair, in order to adapt to the horizontal sliding demand of top girder construction; The lower surface of described top board is provided with the limiting plate of restriction upper base plate relative to top board, middle seat board slippage, and described limiting plate is vertical with the glide direction of upper base plate to be arranged; Described vibration absorption and isolation support is also provided with displacement locking device; Described displacement locking device includes the lock slots be positioned on top board and the locking pop-up mechnaism be fixed on upper base plate; Described locking pop-up mechnaism be positioned at upper base plate indulge bridge to two ends; Described locking pop-up mechnaism includes lockplate, stop pin, tightening element and flexible member; Described lockplate and described upper base plate are structure as a whole; Described lockplate has up big and down small ladder hole, and the enlarged diameter section through hole of ladder hole coordinates with described stop pin; Described tightening element is connected with the reduced diameter section through hole whorl of ladder hole described on lockplate, by described flexible member elastic locking between tightening element and described stop pin; Described lock slots be positioned at top board soffit two ends and be symmetrical arranged; Described lock slots is arranged in the outside of corresponding locking pop-up mechnaism on seat board, and be positioned at the inner side of described limiting plate on top board, in order to when earthquake occurs, design latched position is slid onto at bearing, described stop pin is under the effect of flexible member, spring in lock slots corresponding on top board, the relatively described upper base plate of top board is fixed, planar slide friction pair is locked, thus make geological process power be delivered to stopping means in time, and then remove the spacing effect of contraction of bearing, what ensure bearing subtracts shock insulation function effect.
Described lockplate and described upper base plate one-body molded.
Described lockplate and described upper base plate connect as one.
Described stop pin top is provided with locking antifriction plate; described locking antifriction plate carries out close contact with the plane stainless steel slide plate being covered on top board under the effect of flexible member, and friction factor during to reduce horizontal sliding also protects the work plane of plane stainless steel slide plate not scratched by locking mechanism.
Described vibration absorption and isolation support includes top board, upper base plate, middle seat board, lower seat board and stopping means; The upper surface of described lower seat board is concave spherical surface; The lower surface of described upper base plate is concave spherical surface; In the cavity that described middle seat board is formed between lower seat board, upper base plate, and the upper surface of described middle seat board, lower surface are convex spherical.
Described stopping means includes shock insulation block and shear pin; Described shock insulation block is positioned at the surrounding of lower seat board, and is connected as one by shear pin and lower seat board, transmits the active force of horizontal direction under normal operating conditions; Cut off destruction at earthquake state lower limit pin, bearing subtracts shock insulation friction pair constraint release and on sphere, carries out pendulum model slip thus reach the object that bearing subtracts shock insulation.
Described vibration absorption and isolation support includes top board, upper base plate, middle seat board, lower seat board and stopping means; The upper surface of described lower seat board is concave spherical surface; The upper surface of described middle seat board is concave spherical surface, and lower surface is convex spherical, and has groove; The lower surface of described upper base plate is the convex spherical coordinated with the upper surface of middle seat board.
Described stopping means includes shock insulation block and shear pin; Described shock insulation block is positioned at the surrounding of lower seat board, and shear pin and lower seat board connect as one excessively, transmit the active force of horizontal direction under normal operating conditions; Cut off destruction at earthquake state lower limit pin, bearing subtracts shock insulation friction pair constraint release and on sphere, carries out pendulum model slip thus reach the object that bearing subtracts shock insulation.
Described vibration absorption and isolation support is longitudinally-moving vibration absorption and isolation support or multidirectional movable vibration absorption and isolation support.
A kind of vibration absorption and isolation support with displacement locking device that the utility model proposes, set locking device, when earthquake occurs, flat frictional pair can lock to locking device during design latched position by bearing slippage, the shear pin be arranged on lower seat board cuts off destruction, the effect of shock insulation block constraint relief, bearing realizes horizontal reciprocating by bi-curved synthesis and slides.In the process of reciprocatingly sliding, by the frictional resistance dissipation seismic energy of slide plane, and extending structure natural vibration period, reach damping and isolation effect, thus ensure the safety of bridge construction.After earthquake, superstructure deadweight forms restoring force, and bearing is resetted.After shake, by the stopping means of replacing time and the lock-out state of locking device removing flat frictional pair, bearing recovers normal function.When removing the lock-out state of flat frictional pair, the tightening element loosening locking device makes the Compress Spring of locking device unload, stop pin is return in the lock hole of upper base plate under self gravitation effect, thus removes the locking of flat frictional pair, makes bearing recover normal horizontal sliding function; In sum, pass through the utility model, achieve vibration absorption and isolation support bearing flat frictional pair when earthquake occurs and enter line-locked object by designing requirement, solving vibration absorption and isolation support bearing flat frictional pair when earthquake occurs can not lock in time, improves the damping and isolation effect of bearing.
Accompanying drawing explanation
Fig. 1 is the first structural representation of friction pendulum vibration absorption and isolation support in prior art.
Fig. 2 is the second structural representation of friction pendulum vibration absorption and isolation support in prior art.
Fig. 3 is the normal operating condition schematic diagram of the utility model embodiment 1.
Fig. 4 is the lateral view of Fig. 3.
Fig. 5 is the earthquake lock-out state schematic diagram of the utility model embodiment 1.
Fig. 6 is the first structural representation of locking device in the utility model.
Fig. 7 is the second structural representation of locking device in the utility model.
Fig. 8 is the normal operating condition schematic diagram of the utility model embodiment 2.
Fig. 9 is the lateral view of Fig. 8.
The normal operating condition schematic diagram of Figure 10 the utility model embodiment 3.
Figure 11 is the lateral view of Figure 10.
In figure: 1, top board, 2, plane slide plate, 3, upper base plate, 4, dust ring, 5, sphere slide plate, 6, middle seat board, 7, shock insulation block, 8, shear pin, 9, damping slide plate, 10, lower seat board, 11, anchor bolt, 12, plane stainless steel slide plate, 13, sphere stainless steel slide plate, 14, the nonmetal slide plate of sphere, 15, lock slots, 16, locking pop-up mechnaism, 17, the nonmetal slide plate of plane, 18, tightening element, 19, flexible member, 20, lockplate, 21, stop pin, 22, antifriction plate is locked, 23, bolt.
Detailed description of the invention
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 3, a kind of vibration absorption and isolation support with displacement locking device, described vibration absorption and isolation support includes top board 1, upper base plate 3, middle seat board 6, lower seat board 10 and stopping means; The upper surface of described lower seat board 10 is concave spherical surface; The lower surface of described upper base plate 3 is concave spherical surface; In the cavity that described middle seat board 6 is formed between lower seat board 10, upper base plate 3, and the upper surface of described middle seat board 6, lower surface are convex spherical; The lower surface of described middle seat board 6 and the upper surface of lower seat board 10, the upper surface of described middle seat board 6 and the lower surface of upper base plate 3 form the rotating mechanism of bearing, the nonmetal slide plate 14 of sphere that middle seat board 6 upper surface, lower surface have respectively with lower seat board 10 on have sphere stainless steel slide plate 13, that sphere stainless steel slide plate that upper base plate has forms pivoting friction is secondary, in order to adapt to the rotation demand of top girder construction; The upper surface of described upper base plate 3 and the lower plane of top board 1 form the planar slide mechanism of bearing, the plane stainless steel slide plate 12 that the nonmetal slide plate 17 of the plane had in the groove of upper base plate 3 upper surface and top board lower plane have forms planar slide friction pair, in order to adapt to the horizontal sliding demand of top girder construction; The lower surface of described top board 1 is provided with the limiting plate of restriction upper base plate relative to top board, middle seat board slippage, and described limiting plate is vertical with the glide direction of upper base plate to be arranged; Described vibration absorption and isolation support is also provided with displacement locking device; Described displacement locking device includes the lock slots 15 be positioned on top board and the locking pop-up mechnaism 16 be fixed on upper base plate; Described locking pop-up mechnaism 16 for be positioned at upper base plate indulge bridge to two ends; Described locking pop-up mechnaism 16 includes lockplate 20, stop pin 21, tightening element 18 and flexible member 19; Described lockplate 20 is structure as a whole with described upper base plate 3; As shown in Figure 6, described lockplate 20 is one-body molded with described upper base plate 10, or as shown in Figure 7, described lockplate 20 is connected as one by bolt 23 with described upper base plate 10; Described lockplate 20 has up big and down small ladder hole, and the enlarged diameter section through hole of ladder hole coordinates with described stop pin 21; Described tightening element 18 is connected with the reduced diameter section through hole whorl of described ladder hole on lockplate 20, by described flexible member 19 elastic locking between tightening element 18 and described stop pin 21; In this embodiment, described flexible member 19 is spring, and described tightening element is bolt; Described lock slots be positioned at top board soffit two ends and be symmetrical arranged; Described lock slots 15 is for being positioned at the two ends of soffit and being symmetrical arranged; Described lock slots 15 is arranged in the outside of the described locking pop-up mechnaism 16 of two covers on seat board, and be positioned at the inner side of described limiting plate on top board, in order to when earthquake occurs, when bearing slides onto design latched position, described stop pin is under the effect of flexible member, spring in lock slots corresponding on top board, the relatively described upper base plate of top board is fixed, planar slide friction pair is locked, thus make geological process power be delivered to stopping means in time, and then remove the spacing effect of contraction of bearing, what ensure bearing subtracts shock insulation function effect; Described stopping means includes shock insulation block 7 and shear pin 8; Described shock insulation block 7 be positioned at upper base plate 3 indulge bridge to two ends, and to be connected as one by shear pin 8 and lower seat board 10, transmit the active force of horizontal direction under normal operating conditions; Cut off destruction at earthquake state lower limit pin, bearing subtracts shock insulation friction pair constraint release and on sphere, carries out pendulum model slip thus reach the object that bearing subtracts shock insulation.
Described stop pin 21 top is provided with locking antifriction plate 22, described locking antifriction plate 22 carries out close contact with the plane stainless steel slide plate 12 being covered on top board under the effect of flexible member, and friction factor during to reduce horizontal sliding also protects the work plane of plane stainless steel slide plate not scratched by locking mechanism; This embodiment is used for longitudinally-moving vibration absorption and isolation support, and the upper base plate lock hole lower end of described bearing locking device is provided with screw thread and coordinates with tightening element and makes the flexible member 19 be arranged in upper base plate lock hole be in compressive state in elastic range all the time; The tightening element 18 that described bearing unclamps locking device after earthquake makes stop pin 17 return in the lock hole of upper base plate under self gravitation effect, can implement to reset to bearing.
Provide the structural representation of the utility model embodiment 2 shown in Fig. 8, Fig. 9, the agent structure of this embodiment is with embodiment 1, and in this embodiment, described bearing is multidirectional movable vibration absorption and isolation support.
Figure 10, Figure 11 provide the structural representation of the utility model embodiment 3, and the agent structure of this embodiment is with embodiment 1, and in this embodiment, described vibration absorption and isolation support includes top board 1, upper base plate 3, middle seat board 6, lower seat board 10 and stopping means; The upper surface of described lower seat board 10 is concave spherical surface; The upper surface of described middle seat board 6 is concave spherical surface, and lower surface is convex spherical, and has groove; The lower surface of described upper base plate 3 is the convex spherical coordinated with the upper surface of middle seat board 6; Described stopping means includes shock insulation block 7 and shear pin 8; Described shock insulation block 7 is positioned at the surrounding of lower seat board 6, and is connected as one by shear pin 8 and lower seat board 10, transmits the active force of horizontal direction under normal operating conditions; Cut off destruction at earthquake state lower limit pin, bearing subtracts shock insulation friction pair constraint release and on sphere, carries out pendulum model slip thus reach the object that bearing subtracts shock insulation.
Claims (8)
1. have a vibration absorption and isolation support for displacement locking device, described vibration absorption and isolation support includes top board (1), upper base plate (3), middle seat board (6), lower seat board (10) and stopping means; The upper surface of described lower seat board (10) is sphere; Upper surface, the lower surface of described middle seat board (6) are sphere, and have groove; The lower surface of described upper base plate (3) is the sphere coordinated with the upper surface of middle seat board (6); The lower surface of described middle seat board (6) and the upper surface of lower seat board (10), the upper surface of described middle seat board (6) and the lower surface of upper base plate (3) form the rotating mechanism of bearing, the nonmetal slide plate of sphere (14) that middle seat board (6) upper surface, lower surface have respectively with lower seat board (10) on have sphere stainless steel slide plate (13), that sphere stainless steel slide plate that upper base plate has forms pivoting friction is secondary; The upper surface of described upper base plate (3) and the lower plane of top board (1) form the planar slide mechanism of bearing, and the plane stainless steel slide plate (12) that the nonmetal slide plate of plane (17) had in the groove of upper base plate (3) upper surface and top board lower plane have forms planar slide friction pair; The lower surface of described top board (1) is provided with the limiting plate of restriction upper base plate relative to top board, middle seat board slippage, and described limiting plate is vertical with the glide direction of upper base plate to be arranged; It is characterized in that: described vibration absorption and isolation support is also provided with displacement locking device; Described displacement locking device includes the lock slots (15) be positioned on top board and the locking pop-up mechnaism (16) be fixed on upper base plate; Described locking pop-up mechnaism (16) for be positioned at upper base plate indulge bridge to two ends; Described locking pop-up mechnaism (16) includes lockplate (20), stop pin (21), tightening element (18) and flexible member (19); Described lockplate (20) and described upper base plate (3) are structure as a whole; (20) have up big and down small ladder hole to described lockplate, and the enlarged diameter section through hole of ladder hole coordinates with described stop pin (21); Described tightening element (18) is connected, by described flexible member (19) elastic locking between tightening element (18) and described stop pin (21) with the reduced diameter section through hole whorl of the upper described ladder hole of lockplate (20); Described lock slots (15) is for being positioned at the two ends of top board soffit and being symmetrical arranged; Described lock slots (15) is arranged in the outside of described locking pop-up mechnaism (16) on seat board, and is positioned at the inner side of described limiting plate on top board.
2. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 1, is characterized in that: described lockplate (20) is one-body molded with described upper base plate (3).
3. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 1, is characterized in that: described lockplate (20) and described upper base plate (3) connect as one.
4. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 1, it is characterized in that: described stop pin (21) top is provided with locking antifriction plate (22), described locking antifriction plate (22) carries out close contact with the plane stainless steel slide plate (12) being covered on top board under the effect of flexible member.
5. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 1, is characterized in that: described vibration absorption and isolation support includes top board (1), upper base plate (3), middle seat board (6), lower seat board (10) and stopping means; The upper surface of described lower seat board (10) is concave spherical surface; The lower surface of described upper base plate (3) is concave spherical surface; Described middle seat board (6) is positioned at the cavity formed between lower seat board (10), upper base plate (3), and the upper surface of described middle seat board (6), lower surface are convex spherical.
6. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 5, is characterized in that: described stopping means includes shock insulation block (7) and shear pin (8); Described shock insulation block (7) is positioned at the surrounding of lower seat board (3), and is connected as one by shear pin (8) and lower seat board (10).
7. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 1, is characterized in that: described vibration absorption and isolation support includes top board (1), upper base plate (3), middle seat board (6), lower seat board (10) and stopping means; The upper surface of described lower seat board (10) is concave spherical surface; The upper surface of described middle seat board (6) is concave spherical surface, and lower surface is convex spherical, and has groove; The lower surface of described upper base plate (3) is the convex spherical coordinated with the upper surface of middle seat board (6).
8. a kind of vibration absorption and isolation support with displacement locking device as claimed in claim 7, is characterized in that: described stopping means includes shock insulation block (7) and shear pin (8); Described shock insulation block (7) is positioned at the surrounding of lower seat board (10), and shear pin (8) and lower seat board (10) connect as one excessively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599761.3U CN204875500U (en) | 2015-08-11 | 2015-08-11 | Subtract isolation bearing with displacement locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599761.3U CN204875500U (en) | 2015-08-11 | 2015-08-11 | Subtract isolation bearing with displacement locking device |
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| Publication Number | Publication Date |
|---|---|
| CN204875500U true CN204875500U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520599761.3U Active CN204875500U (en) | 2015-08-11 | 2015-08-11 | Subtract isolation bearing with displacement locking device |
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| CN (1) | CN204875500U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178174A (en) * | 2015-08-11 | 2015-12-23 | 洛阳双瑞特种装备有限公司 | Seismic isolation and reduction support with displacement locking device |
| CN108677698A (en) * | 2018-06-29 | 2018-10-19 | 浙江秦山橡胶工程股份有限公司 | A kind of damping big corner ball shaped steel bearing |
| CN109811651A (en) * | 2017-11-20 | 2019-05-28 | 洛阳双瑞特种装备有限公司 | The big damping hyperboloid of one kind subtracts shock insulation spherical bearing |
| CN110485279A (en) * | 2019-08-06 | 2019-11-22 | 洛阳双瑞特种装备有限公司 | A kind of hyperboloid vibration absorption and isolation support with complete runback bit function |
-
2015
- 2015-08-11 CN CN201520599761.3U patent/CN204875500U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178174A (en) * | 2015-08-11 | 2015-12-23 | 洛阳双瑞特种装备有限公司 | Seismic isolation and reduction support with displacement locking device |
| CN109811651A (en) * | 2017-11-20 | 2019-05-28 | 洛阳双瑞特种装备有限公司 | The big damping hyperboloid of one kind subtracts shock insulation spherical bearing |
| CN108677698A (en) * | 2018-06-29 | 2018-10-19 | 浙江秦山橡胶工程股份有限公司 | A kind of damping big corner ball shaped steel bearing |
| CN108677698B (en) * | 2018-06-29 | 2024-03-26 | 浙江秦山橡胶工程股份有限公司 | Shock attenuation large-rotation-angle spherical steel support |
| CN110485279A (en) * | 2019-08-06 | 2019-11-22 | 洛阳双瑞特种装备有限公司 | A kind of hyperboloid vibration absorption and isolation support with complete runback bit function |
| CN110485279B (en) * | 2019-08-06 | 2024-02-23 | 中船双瑞(洛阳)特种装备股份有限公司 | Hyperboloid shock-absorbing and isolating support with complete self-resetting function |
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