Anti-seismic damper

Abstract

The anti-seismic damper comprises an outer shell, an inner shell, a piston rod, a valve and a sheet impeller, a moving cavity is formed in the outer shell, one end of the moving cavity is provided with an opening, the inner shell is inserted into the moving cavity in a sliding mode from the opening of the moving cavity, a hydraulic cavity is formed in the inner shell, hydraulic oil is filled in the hydraulic cavity, and the valve is arranged on the inner wall in an attached and sliding mode. A piston rod is arranged at the end, away from the opening, in the outer shell moving cavity, the other end of the piston rod slidably penetrates through the end of the inner shell and is connected with the valve, and a sheet impeller is rotationally connected to the piston rod located in the hydraulic cavity and used for stirring the hydraulic oil when the piston rod drives the valve to move. Displacement energy between the outer shell and the inner shell is consumed through the sheet impeller, meanwhile, the sheet impeller can also participate in energy consumption and play a certain buffering role, the sheet impeller can be applied to connection between building structures, damping buffering at beam-column joints is achieved, and the buffering effect is improved through the arrangement of the sheet impeller and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of device for building structure, concretely relates to an anti-seismic damper. BACKGROUND

[0002] In the field of modern building engineering, the seismic performance of structure is always the key element to ensure the safety of building. As the connecting part of beam and column in building structure, beam-column joint undertakes extremely complex and important mechanical transmission task under the action of earthquake, and its performance directly relates to the stability and safety of the whole building structure.

[0003] The traditional beam-column joint structure has many obvious defects when facing the strong horizontal and vertical force generated by earthquake and other natural disasters. On the one hand, when strong earthquake occurs, the structure vibration caused by seismic wave will make the beam-column joint bear huge bending moment, shear force and axial force. Due to the limited cooperative working performance of joint area structure, the phenomena of structure crushing, peeling, yielding and breaking are prone to occur, which seriously weakens the bearing capacity of joint and further causes the destruction and even collapse of the whole structure system. On the other hand, the stiffness and energy dissipation capacity of traditional beam-column joint are relatively fixed, and cannot be adaptively adjusted according to the actual intensity of earthquake and the vibration response of structure.

[0004] The common anti-seismic damper used for improving the structure of beam-column joint at present is friction damper. The friction damper dissipates energy through the friction between friction plates, but the friction coefficient is unstable after long time use due to the influence of factors such as wear, and the buffering effect is poor.

[0005] Therefore, an anti-seismic damper is needed to solve the problem of poor damping buffering effect at beam-column joint under the action of earthquake and other actions. CONTENT OF UTILITY MODEL

[0006] In view of the defects in the prior art, the utility model provides an anti-seismic damper to solve the problem of poor damping buffering effect at beam-column joint under the action of earthquake and other actions.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An anti-vibration damper comprises an outer shell, an inner shell, a piston rod, a valve and a thin-leaf impeller, the inside of the outer shell is provided with a moving cavity in the axial direction, and one end of the moving cavity is open, the inner shell is slidingly inserted into the moving cavity from the open end of the moving cavity, the inside of the inner shell is provided with a hydraulic cavity in the axial direction, the hydraulic cavity is filled with hydraulic oil, and the inner wall is slidingly provided with a valve, a plurality of through holes for the hydraulic oil to pass through are formed in the valve, the moving cavity of the outer shell is provided with a piston rod in the axial direction away from the open end, the other end of the piston rod is slidingly connected to the valve through the end of the inner shell, and a plurality of thin-leaf impellers are rotationally connected to the piston rod in the hydraulic cavity, and the thin-leaf impellers are used for stirring the hydraulic oil when the piston rod drives the valve to move.

[0009] In order to optimize the above technical scheme, the specific measures taken further include:

[0010] Further, one end of the plurality of thin-leaf impellers is rotationally arranged on the piston rod through a ball bearing.

[0011] Further, the plurality of thin-leaf impellers are arranged in a spiral shape around the piston rod.

[0012] Further, the side wall of one end of the thin-leaf impeller is further provided with a stirring blade arranged in the radial direction of the piston rod.

[0013] Further, the thin-leaf impeller is made of spring steel.

[0014] Further, the plurality of through holes on the valve are arranged in a circle equidistantly around the piston rod.

[0015] Further, a piston is slidingly arranged in the hydraulic cavity away from the outer shell, the side of the piston close to the valve is filled with hydraulic oil, and the side away from the valve is connected to the end of the hydraulic cavity through a damping spring.

[0016] Further, a damping rubber layer is arranged at the end of the hydraulic cavity close to the outer shell, and the end of the piston rod slidingly penetrates the end of the inner shell and slidingly seals through the damping rubber layer.

[0017] Further, a sealing rubber ring is connected between the damping rubber layer and the end of the outer shell.

[0018] Further, the outer side end of the outer shell away from the inner shell and the outer side end of the inner shell away from the outer shell are provided with a connecting piece, and the connecting piece is used for connecting a beam connecting part of a beam or a column connecting part of a column.

[0019] The beneficial effects of the present application are:

[0020] The utility model discloses when using, when relative displacement appears between shell and inner shell, valve will be under the constraint of piston rod, moves in hydraulic cavity, at this moment, hydraulic oil flows through the through -hole of valve and consumes energy, and the flowing hydraulic oil also can drive the rotation of lamella impeller, to utilize lamella impeller and consume the energy between shell and inner shell, simultaneously, lamella impeller can also participate in energy consumption and play certain buffering effect.

[0021] The utility model discloses the connection of application in the connection between building structure, such as the connection at beam column joint, to realize the damping buffer at beam column joint, and utilize lamella impeller etc. Setting increases the buffering effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the shock -resistant damper of the utility model;

[0023] Figure 2 It is the structure schematic diagram of the lamella impeller of the shock -resistant damper of the utility model;

[0024] Figure 3 It is the structure split drawing of the lamella impeller of the shock -resistant damper of the utility model;

[0025] Figure 4 It is the connecting piece installation schematic drawing of the shock -resistant damper of the utility model;

[0026] Figure 5 It is the use schematic drawing of the shock -resistant damper of the utility model.

[0027] Sign meaning: 1-piston rod, 2-piston, 3-working chamber, 4-hydraulic oil, 5-valve, 6-damping spring, 7-damping rubber layer, 8-sealing rubber ring, 9-outer shell, 10-lamella impeller, 11-roller bearing, 12-inner shell. DETAILED DESCRIPTION

[0028] The utility model discloses below in conjunction with the drawings in detail.

[0029] As shown in the accompanying Figure 1 The utility model discloses an anti -seismic damper, including shell 9, inner shell 12, piston rod 1, valve 5 and lamella impeller 10, the inside of shell 9 is equipped with mobile cavity along the axial direction, and the mobile cavity one end is open, and the inner shell 12 is from mobile cavity opening place and is slidably inserted in mobile cavity, the inside of inner shell 12 is equipped with hydraulic chamber along the axial direction, and the hydraulic chamber is filled with hydraulic oil 4, and the inner wall is slidably provided with valve 5, and a plurality of through -holes for the hydraulic oil 4 to pass through are seted up on valve 5, and the mobile cavity of shell 9 is equipped with piston rod 1 along the axial direction away from the end of opening, and the other end of piston rod 1 is slidably passed through the end of inner shell 12 and is connected valve 5, and a plurality of lamella impeller 10 are rotationally connected on the piston rod 1 in the hydraulic chamber, and lamella impeller 10 is used for stirring hydraulic oil 4 when piston rod 1 drives valve 5 to move.

[0030] When the shell 9 and the inner shell 12 appear relative displacement, the valve 5 will move in the hydraulic chamber under the constraint of the piston rod 1, at this moment, the hydraulic oil 4 flows through the through -hole of the valve 5 and consumes energy, and the flowing hydraulic oil 4 also drives the lamella impeller 10 to rotate, so that the energy between the shell 9 and the inner shell 12 is consumed by the lamella impeller 10, and at the same time, the lamella impeller 10 can also participate in energy consumption and play a certain buffering effect. The utility model can be applied to the connection between building structures, such as the connection at the beam column joint, to realize the damping buffer at the beam column joint, and the buffering effect is increased by the setting of the lamella impeller 10.

[0031] In the above scheme, the length of the lamella impeller 10 is less than the length of the hydraulic chamber, so as to ensure that the lamella impeller 10 does not affect the movement of the piston rod 1 driving the valve 5. The hydraulic oil 4 adopts high-stability synthetic hydraulic oil, which improves the temperature variation resistance performance to ensure the stability of energy conversion efficiency under different environmental temperatures and optimize the damping performance. The shell 9 and the inner shell 12 are made of high-strength lightweight metal alloy material, which reduces the overall weight on the basis of ensuring the structural strength and expands the range of applicable building scenes. The inside of the shell 9 and the inner shell 12 can be provided with guide structures such as guide rails to guide the movement of the shell 9 and the inner shell 12, avoid deviation and wear, and improve the running stability of the device. The surface of the shell 9 and the inner shell 12 is sprayed with a corrosion-resistant coating.

[0032] As shown in the accompanying Figure 2 and the accompanying Figure 3 As shown in the accompanying

[0033] Wherein, several thin-leaf impeller 10 is helical around the piston rod 1 set. In this way, the contact area of thin-leaf impeller 10 and hydraulic oil 4 can be increased, so that the flowing hydraulic oil 4 drives the thin-leaf impeller 10 to rotate.

[0034] Wherein, the side wall of one end of thin-leaf impeller 10 is also extended and provided with stirring blades arranged along the radial direction of piston rod 1. In this way, the contact area of thin-leaf impeller 10 and hydraulic oil 4 can be increased, and the energy consumption capacity of thin-leaf impeller 10 can be increased.

[0035] Wherein, thin-leaf impeller 10 is made of spring steel.

[0036] Wherein, a plurality of through holes on the valve 5 are arranged at equal intervals around the piston rod 1.

[0037] In another specific embodiment based on the above, the hydraulic chamber is slidably provided with a piston 2 at the end away from the shell 9, the side of the piston 2 close to the valve 5 is filled with hydraulic oil 4, the side away from the valve 5 is used as a working chamber 3, and is connected to the end of the hydraulic chamber through a shock absorbing spring 6. Wherein, a guide structure such as a guide rail can be arranged inside the working chamber 3 to guide the vertical movement of the piston 2, avoid deviation and wear, and improve the stability of the device. In this way, the way of increasing the buffer and shock absorption of the piston 2, when working, will compress the air in the working chamber 3, increase the shock absorption and energy consumption effect; the gas in the working chamber 3 will rebound after being compressed, and drive the piston 2 to move in the opposite direction, convert the energy into heat, and dissipate in the air.

[0038] In another specific embodiment based on the above, the hydraulic chamber is provided with a shock absorbing rubber layer 7 at the end close to the shell 9, the end of the piston rod 1 can slide through the end of the inner shell 12 and slide through the shock absorbing rubber layer 7. Wherein, the shock absorbing rubber layer 7 is made of aging-resistant EPDM rubber material, which prolongs the service life by using its high elasticity, and enhances the buffer and shock absorption effect. In working, the shock absorbing rubber layer 7 also performs expansion and contraction movement to increase the buffer and shock absorption effect.

[0039] Wherein, a sealing rubber ring 8 is connected between the shock absorbing rubber layer 7 and the end of the shell 9. Wherein, the sealing rubber ring 8 adopts a combined sealing structure to enhance the sealing performance, prevent the hydraulic oil 4 from leaking, and prolong the service life of the device.

[0040] As shown in the accompanying Figure 4 As shown in the accompanying

[0041] As shown in the accompanying Figure 5 As shown in the accompanying

[0042] First, the beam bottom and column are respectively pre-installed base, the device is fixed to the mounting base through the connecting piece and high-strength bolt, the top of the device can be assembled with the beam bottom bracket column in a hinged manner, and effective stress is ensured when the beam column node is shaken; when the beam column node is shaken and displaced, the shell 9 and the inner shell 12 are reciprocated, at this time, the compression damping spring 6 and the damping rubber layer 7, the piston 2 extrudes the hydraulic oil 4 to flow through the through hole of the valve 5 to realize energy conversion into heat energy, then the gas in the working chamber 3 is compressed and rebounded to push the piston 2 to reset, the valve 5 continuously consumes energy through the damping effect of the hydraulic oil 4, and a "buffering-energy consumption-resetting" cyclic anti-seismic mechanism is formed, and at the same time, the thin sheet impeller 10 rotates to participate in energy consumption.

[0043] Specifically, the beam connecting part is rotatably connected with one end of the device through a first connecting piece, the column connecting part is rotatably connected with the other end of the device through a second connecting piece, and the rotation axes of the first connecting piece and the second connecting piece are parallel to each other. The beam connecting part can be a plate-shaped structure, one end of which is provided with a bolt hole connected with the beam, and the other end is provided with a connecting hole matched with the first connecting piece, and the connecting hole is an oblong hole to adapt to the small displacement of the beam under different working conditions.

[0044] Specifically, adjusting devices can be arranged between the connecting piece and the shell 9 and the inner shell 12 as needed, and the adjusting devices include adjusting screws and adjusting nuts. By adjusting the adjusting nuts, the relative positions between the connecting piece and the shell 9 and the inner shell 12 can be changed to adapt to the installation angle requirements of different beam column nodes.

[0045] The device solves the problem that the internal force at the beam column node is too large under the action of earthquakes and the like, and the connecting part is prone to looseness, cracking and other damage phenomena. The device can be conveniently produced and used by prefabricating each part. Through the cooperation of the connecting piece, a quick and reliable connecting structure can be realized. The structure is stable, easy to disassemble, and conducive to recycling and reuse.

[0046] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "rear" and the like cited in the utility model are only for the convenience of clear description, and are not used to limit the scope of the utility model. The change or adjustment of the relative relationship is also considered as the scope of the utility model without substantial change in technical content.

[0047] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments. Any technical solution belonging to the utility model idea is within the protection scope of the utility model. It should be noted that some improvements and decorations without departing from the principle of the utility model are considered as the protection scope of the utility model.

Claims

1. A seismic damper, characterized by: The utility model relates to a hydraulic cylinder, which comprises an outer shell (9), an inner shell (12), a piston rod (1), a valve (5) and a thin slice impeller (10), the inside of the outer shell (9) is provided with a moving cavity in the axial direction, and one end of the moving cavity is open, the inner shell (12) is slidably inserted into the moving cavity from the open end of the moving cavity, the inside of the inner shell (12) is provided with a hydraulic cavity in the axial direction, the hydraulic cavity is filled with hydraulic oil (4), and the inner wall is slidably provided with the valve (5), a plurality of through holes are formed in the valve (5) for the hydraulic oil (4) to pass through, the moving cavity of the outer shell (9) is provided with the piston rod (1) in the axial direction away from the open end, the other end of the piston rod (1) is slidably connected with the valve (5) through the end of the inner shell (12), and a plurality of thin slice impellers (10) are rotatably connected to the piston rod (1) in the hydraulic cavity, the thin slice impeller (10) is used for stirring the hydraulic oil (4) when the piston rod (1) drives the valve (5) to move.

2. A seismic damper according to claim 1, wherein: One end of the plurality of thin slice impellers (10) is rotatably arranged on the piston rod (1) through a ball bearing (11).

3. The seismic damper of claim 1, wherein: The plurality of thin slice impellers (10) are arranged in a spiral shape around the piston rod (1).

4. The seismic damper of claim 1, wherein: The side wall of one end of the thin slice impeller (10) is further provided with a stirring blade arranged in the radial direction of the piston rod (1).

5. The seismic damper of claim 1, wherein: The thin slice impeller (10) is made of spring steel.

6. The seismic damper of claim 1, wherein: The plurality of through holes in the valve (5) are arranged in a circle around the piston rod (1) at equal intervals.

7. The seismic damper of claim 1, wherein: A piston (2) is slidably arranged in the hydraulic cavity away from the outer shell (9), the side of the piston (2) close to the valve (5) is filled with hydraulic oil (4), and the side of the piston (2) away from the valve (5) is connected with the end of the hydraulic cavity through a damping spring (6).

8. The seismic damper of claim 1, wherein: A damping rubber layer (7) is arranged at the end of the hydraulic cavity close to the outer shell (9), the end of the piston rod (1) is slidably arranged through the end of the inner shell (12) and slidably seals through the damping rubber layer (7).

9. A seismic damper according to claim 8, wherein: A sealing rubber ring (8) is connected between the damping rubber layer (7) and the end of the outer shell (9).

10. The seismic damper of claim 1, wherein: The outer side end of the outer shell (9) away from the inner shell (12) and the outer side end of the inner shell (12) away from the outer shell (9) are provided with connecting parts, and the connecting parts are used for connecting beam connecting parts of a beam or column connecting parts of a column.

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