CN218094015U - Viscous damper with multi-frequency aftershock resistance - Google Patents

Abstract

The utility model discloses an anti aftershock's of multifrequency time viscous damper, including attenuator main part, guide arm, piston and first sealing washer, the one end of attenuator main part is fixed with first connecting portion, and the inside of attenuator main part is provided with the guide arm, and the central position department of guide arm is provided with the piston, and evenly distributed has the through-hole on the piston, and the attenuator main part is close to one side of guide arm and has seted up the ring channel, and the inside both sides of ring channel are provided with first sealing washer and second sealing washer respectively. The utility model discloses an install attenuator main part, guide arm, piston, ring channel, first sealing washer, second sealing washer, third sealing washer and reset spring, when the aftershock was sent out frequently, guide arm reciprocating motion many times caused first sealing washer wearing and tearing to appear easily, at reset spring's effect this moment for the third sealing washer can promote first sealing washer and second sealing washer and mend the position, is difficult to cause revealing of inside viscous fluid.

Description

Viscous damper with multi-frequency aftershock resistance

Technical Field

The utility model relates to a viscous damper technical field specifically is a viscous damper of anti aftershock of multifrequency time.

Background

The viscous damper consists of a cylinder, a piston, viscous fluid, a guide rod and the like, wherein the cylinder is filled with the viscous fluid, the piston can reciprocate in the cylinder, a proper amount of small holes are formed in the piston or a gap is reserved between the piston and the cylinder, when the cylinder and the piston generate relative motion due to deformation of the structure, the viscous fluid is forced to flow through the small holes or the gap, damping force is generated, vibration energy can be dissipated through viscous consumption, and the purpose of shock absorption is achieved.

Viscous dampers are installed on buildings to dissipate earthquake capability, so that the main structure is kept good, and after an earthquake is finished, the damaged energy dissipation devices can be detached and reinstalled, so that the viscous dampers are earthquake-resistant, convenient and very economical, but 1. Most of the viscous dampers have poor sealing property between a guide rod and a cylinder barrel, are easy to leak viscous fluid when reciprocating movement times are excessive, and have insufficient protection on the buildings when residual earthquake times are excessive; 2. most viscous dampers are usually fixed by bolts and nuts when being installed, and ordinary nuts are simple in structure and easy to loosen when being vibrated, so that the normal work of the viscous dampers is influenced; 3. the viscous damper is low in structural strength and easy to damage when being extruded and collided by external force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti aftershock's of multifrequency viscous damper to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti aftershock's of multifrequency viscous damper, includes attenuator main part, guide arm, piston and first sealing washer, the one end of attenuator main part is fixed with first connecting portion, just the inside of attenuator main part is provided with the guide arm, the one end of guide arm extends to the outside of attenuator main part, just be fixed with the second connecting portion on the outside guide arm of attenuator main part, the mounting hole has all been seted up on second connecting portion and the first connecting portion, the central point department of putting of guide arm is provided with the piston, just evenly distributed has the through-hole on the piston, the attenuator main part is close to one side of guide arm and has seted up the ring channel, just the inside both sides of ring channel are provided with first sealing washer and second sealing washer respectively, first sealing washer and second sealing washer laminate with the outer wall of guide arm and the inner wall of ring channel respectively.

Preferably, the outside of attenuator main part is evenly overlapped and is equipped with fixed cover, just fixed cover all is fixed with the spacing ring all around, all pass between the spacing ring and have outside bracing piece, to the outside support and the guard action that plays of attenuator main part.

Preferably, the inside of mounting hole all is provided with fixing bolt, just fixing bolt's one end all is provided with the nut, the nut is close to one side of first connecting portion and second connecting portion and all closely laminates through cushion plate and first connecting portion and second connecting portion, does benefit to this attenuator main part and carries out fixed connection with the building.

Preferably, a third sealing ring is arranged between the first sealing ring and the second sealing ring, and two ends of the third sealing ring are connected with two sides of the inner part of the annular groove through a return spring, so that the sealing performance between the guide rod and the damper main body is ensured.

Preferably, bulges are arranged on one side, close to the nut, of the buffer base plate, and elastic elements are arranged between the bulges and the nut, so that firmness of the damper main body after installation is guaranteed.

Preferably, elastic element all adopts domes's rubber strip, just elastic element's both ends all support on the swell, receive the exogenic action through elastic element self deformation with resume with external force dispersion buffering.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) This anti aftershock's of multifrequency viscous damper is through installing the attenuator main part, the guide arm, a piston, the ring channel, first sealing washer, the second sealing washer, third sealing washer and reset spring, the cooperation is hugged closely with the inclined plane of first sealing washer and second sealing washer to the third sealing washer, the pressure to the guide arm direction has been exerted to first sealing washer, make first sealing washer hug closely the guide arm, the leakproofness is improved, furthermore, when the aftershock frequently takes place, guide arm reciprocating motion many times causes first sealing washer wearing and tearing to appear easily, at this moment under reset spring's effect, make the third sealing washer can promote first sealing washer and second sealing washer and mend the position, make first sealing washer tightly hug closely the guide arm all the time, avoid appearing the gap between first sealing washer and the guide arm and influence the leakproofness, be difficult to cause the revealing of inside viscous fluid.

(2) This viscous damper of anti aftershock of multifrequency is through installing first connecting portion, the second connecting portion, the mounting hole, fixing bolt, the nut, elastic element, swell and buffering backing plate, carry out fixed connection with first connecting portion and second connecting portion and building through fixing bolt, later through nut locking, elastic element adopts domes's rubber strip, both ends are supported on the swell, receive external force when acting on through elastic element self deformation and resume with external force divergent buffering, make the nut difficult not hard up, guarantee the fastness after this attenuator main part installation.

(3) This viscous damper of anti aftershock of multifrequency time is equipped with fixed cover through the outside at the attenuator main part is evenly overlapped, all is fixed with the spacing ring around fixed cover, has all passed outside bracing piece between the spacing ring, does benefit to and supports and the guard action outside the attenuator main part, and the effort is difficult to direct action in the attenuator main part when receiving external force extrusion collision, prolongs the life of attenuator main part.

Drawings

Fig. 1 is a schematic top view of the cross-sectional structure of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 4 is a schematic view of a first connection portion of the present invention;

fig. 5 is a schematic side view of the piston according to the present invention.

In the figure: 1. a damper main body; 2. a first connection portion; 3. a guide bar; 4. fixing a sleeve; 5. a piston; 6. a second connecting portion; 7. mounting holes; 8. an outer support bar; 9. a limiting ring; 10. fixing the bolt; 11. a first seal ring; 12. a return spring; 13. a second seal ring; 14. an annular groove; 15. a third seal ring; 16. bulging; 17. a nut; 18. an elastic element; 19. a cushion plate; 20. and a through hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a multi-frequency aftershock-resistant viscous damper comprises a damper main body 1, a guide rod 3, a piston 5 and a first sealing ring 11, wherein a first connecting part 2 is fixed at one end of the damper main body 1, the guide rod 3 is arranged inside the damper main body 1, one end of the guide rod 3 extends to the outside of the damper main body 1, and a second connecting part 6 is fixed on the guide rod 3 outside the damper main body 1;

mounting holes 7 are formed in the second connecting portion 6 and the first connecting portion 2, fixing bolts 10 are arranged inside the mounting holes 7, and nuts 17 are arranged at one ends of the fixing bolts 10;

one side of the nut 17 close to the first connecting part 2 and one side of the nut 17 close to the second connecting part 6 are tightly attached to the first connecting part 2 and the second connecting part 6 through a buffer backing plate 19;

the first connecting part 2 and the second connecting part 6 at two ends of the damper main body 1 are fixedly connected with a building through a fixing bolt 10 and then locked through a nut 17;

bulges 16 are arranged on one side, close to the nut 17, of the buffer base plate 19, elastic elements 18 are arranged between the bulges 16 and the nut 17, the elastic elements 18 are all rubber strips with arch structures, and two ends of each elastic element 18 are abutted against the bulges 16;

when the damper is acted by external force, the external force is diffused and buffered through the self deformation and recovery of the elastic element 18, so that the nut 17 is not easy to loosen, and the firmness of the damper main body 1 after installation is ensured;

the piston 5 is arranged at the central position of the guide rod 3, the through holes 20 are uniformly distributed on the piston 5, when the building is vibrated, the guide rod 3 drives the piston 5 to reciprocate in the damper main body 1, the through holes 20 are formed in the piston 5, viscous fluid is forced to flow through the through holes 20, damping force is generated, vibration energy is eliminated through viscous consumption, and the purpose of shock absorption is achieved;

an annular groove 14 is formed in one side, close to the guide rod 3, of the damper main body 1, a first sealing ring 11 and a second sealing ring 13 are respectively arranged on two sides of the inner portion of the annular groove 14, and the first sealing ring 11 and the second sealing ring 13 are respectively attached to the outer wall of the guide rod 3 and the inner wall of the annular groove 14;

the third sealing ring 15 in the annular groove 14 is tightly matched with the inclined surfaces of the first sealing ring 11 and the second sealing ring 13, and pressure in the direction of the guide rod 3 is applied to the first sealing ring 11, so that the first sealing ring 11 is tightly attached to the guide rod 3, and the sealing property is improved;

a third sealing ring 15 is arranged between the first sealing ring 11 and the second sealing ring 13, and two ends of the third sealing ring 15 are connected with two sides of the inner part of the annular groove 14 through a return spring 12;

when the aftershock happens frequently, the guide rod 3 reciprocates for multiple times to easily cause abrasion of the first sealing ring 11, and at the moment, under the action of the return spring 12, the third sealing ring 15 can push the first sealing ring 11 and the second sealing ring 13 to perform position compensation;

so that the first sealing ring 11 is always tightly adhered to the guide rod 3, the sealing performance is prevented from being influenced by a gap between the first sealing ring 11 and the guide rod 3, the viscous fluid in the damper main body 1 is not easy to leak,

the outer part of the damper main body 1 is uniformly sleeved with a fixed sleeve 4, the periphery of the fixed sleeve 4 is fixed with limit rings 9, and outer support rods 8 penetrate through the limit rings 9;

do benefit to and support and guard action 1 outside to the attenuator, the effort is difficult to direct action on attenuator main part 1 when receiving external force extrusion collision, prolongs the life of attenuator main part 1.

The working principle is as follows: when the damper is used, the first connecting part 2 and the second connecting part 6 at two ends of the damper main body 1 are fixedly connected with a building through the fixing bolt 10, then the damper main body is locked through the nut 17, the elastic element 18 adopts a rubber strip with an arch structure, two ends of the elastic element are abutted against the bulge 16, when the damper is subjected to external force, the external force is dispersed and buffered through the self deformation and recovery of the elastic element 18, the nut 17 is not easy to loosen, the firmness of the damper main body 1 after installation is ensured, when the building is vibrated, the guide rod 3 drives the piston 5 to reciprocate in the damper main body 1, the piston 5 is provided with the through hole 20, viscous fluid is forced to flow through the through hole 20, so that damping force is generated, vibration energy can be eliminated through viscous consumption, the damping purpose is achieved, the annular groove 14 is formed in one end inside the damper main body 1, the third sealing ring 15 in the annular groove 14 is tightly fitted with the inclined surfaces of the first sealing ring 11 and the second sealing ring 13, pressure in the direction of the guide rod 3 is applied to the first sealing ring 11, so that the first sealing ring 11 is tightly attached to the guide rod 3, the sealing performance is improved, in addition, when aftershocks occur frequently, the guide rod 3 reciprocates for multiple times to easily cause abrasion of the first sealing ring 11, at the moment, under the action of the reset spring 12, the third sealing ring 15 can push the first sealing ring 11 and the second sealing ring 13 to perform position supplementing, so that the first sealing ring 11 is tightly attached to the guide rod 3 all the time, the influence of gaps between the first sealing ring 11 and the guide rod 3 on the sealing performance is avoided, leakage of viscous fluid in the damper main body 1 is not easily caused, in addition, the fixing sleeve 4 is uniformly sleeved outside the damper main body 1, the limiting rings 9 are fixed around the fixing sleeve 4, the external support rods 8 penetrate between the limiting rings 9, and the supporting and protecting effects on the outside of the damper main body 1 are facilitated, when the damper body 1 is extruded and collided by external force, the acting force is not easy to directly act on the damper body 1, and the service life of the damper body 1 is prolonged.

Claims (6)

1. The utility model provides an anti aftershock's of multifrequency viscous damper, its characterized in that, including attenuator main part (1), guide arm (3), piston (5) and first sealing washer (11), the one end of attenuator main part (1) is fixed with first connecting portion (2), just the inside of attenuator main part (1) is provided with guide arm (3), the one end of guide arm (3) extends to the outside of attenuator main part (1), just be fixed with second connecting portion (6) on guide arm (3) of attenuator main part (1) outside, mounting hole (7) have all been seted up on second connecting portion (6) and first connecting portion (2), the central point department of putting of guide arm (3) is provided with piston (5), just evenly distributed has through-hole (20) on piston (5), attenuator main part (1) have been close to one side of guide arm (3) and have been seted up ring channel (14), just the inside both sides of ring channel (14) are provided with first sealing washer (11) and second sealing washer (13) respectively, first sealing washer (11) and second sealing washer (13) laminate with the inner wall of guide arm (3) and ring channel (14).

2. The multi-frequency aftershock resistant viscous damper of claim 1, further comprising: the outside of attenuator main part (1) is evenly overlapped and is equipped with fixed cover (4), just all be fixed with spacing ring (9) around fixed cover (4), all pass between spacing ring (9) and have outside bracing piece (8).

3. The multi-frequency aftershock resistant viscous damper of claim 1, further comprising: the inside of mounting hole (7) all is provided with fixing bolt (10), just the one end of fixing bolt (10) all is provided with nut (17), one side that nut (17) are close to first connecting portion (2) and second connecting portion (6) all is closely laminated with first connecting portion (2) and second connecting portion (6) through cushion pad (19).

4. The multi-frequency aftershock resistant viscous damper of claim 1, further comprising: a third sealing ring (15) is arranged between the first sealing ring (11) and the second sealing ring (13), and two ends of the third sealing ring (15) are connected with two sides inside the annular groove (14) through a return spring (12).

5. The viscous damper of multi-frequency aftershock resistance of claim 3, wherein: bulges (16) are arranged on one side, close to the nuts (17), of the buffer base plate (19), and elastic elements (18) are arranged between the bulges (16) and the nuts (17).

6. The viscous damper of multi-frequency aftershock resistance according to claim 5, wherein: the elastic elements (18) are all rubber strips with arch structures, and two ends of each elastic element (18) are abutted against the bulges (16).

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