Solid-gas double-phase composite self-resetting viscous damper

By designing a solid-gas two-phase composite self-resetting viscous damper, combining viscous damping fluid and inert gas, the problems of large residual strain and lack of self-resetting in viscous dampers were solved, achieving efficient self-resetting and energy dissipation effects, and improving service life and building safety.

CN223608011UActive Publication Date: 2025-11-28HOHAI UNIV
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Patent Information

Application Number
CN202422437398.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-11-28
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

Existing viscous dampers have excessive residual strain and lack self-resetting function, making it difficult to meet building safety requirements.

Method used

Design a solid-gas two-phase composite self-resetting viscous damper that combines viscous damping fluid and inert gas. The energy dissipation and self-resetting of the damping medium are achieved through a piston-type damping plate and a reset spring. The pressure generated by gas compression or stretching assists the spring in resetting.

Benefits of technology

It improves the service life and energy dissipation and vibration reduction effect of the damper, realizes an effective self-resetting function, and meets the building safety requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a solid-gas double-phase composite self-resetting viscous damper, and belongs to the civil engineering industry. A solid-gas double-phase composite type self-resetting viscous damper is characterized by comprising an outer sleeve, a top connecting piece, a piston rod, a piston type damping plate, a first reset spring, a second reset spring, an outer barrel, a movable pressing plate, a bottom connecting piece, a rubber sealing ring, a damping liquid containing cavity, a gas containing cavity, viscous damping liquid, inert gas and an outer barrel top cover. The piston rod penetrates through the top cover of the outer barrel from top to bottom and is welded to the piston type damping plate, and the movable pressing plate divides the interior of the outer barrel into a damping liquid containing cavity and a gas containing cavity. Aiming at the current situation that an existing viscous damper is too large in residual displacement and lacks a self-resetting function, the utility model provides the self-resetting composite viscous damper which realizes damping and energy consumption of a damping medium and resetting of a gas medium and a spring, so that the service life of the self-resetting viscous damper can be greatly prolonged, and the energy dissipation and shock absorption effects of the self-resetting viscous damper can be greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper belongs to civil engineering industry. BACKGROUND

[0002] The shock absorption technology has been the development key of civil engineering industry of our country, and the traditional civil engineering mainly dissipates the energy brought by the earthquake through strengthening the strength of structure itself, and this mode is neither economical nor convenient for construction operation, and it is difficult to meet the safety demand of building, so how to design from the aspect of shock absorption and energy dissipation to dissipate the earthquake energy is the key.

[0003] Through the investigation, it shows that the traditional viscous damper mostly makes the piston rod reciprocate in the damping medium installed in the cylinder body, thereby making the damping medium reciprocate in two chambers to generate damping force, and finally realizes the purpose of dissipating the earthquake energy. But the existing viscous damper has too large residual strain and no self-resetting function. UTILITY MODEL CONTENTS

[0004] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper belongs to civil engineering industry.

[0005] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper belongs to civil engineering industry.

[0006] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper belongs to civil engineering industry, and the device includes outer sleeve, top connecting piece, piston rod, piston type damping plate, first reset spring, second reset spring, outer cylinder, movable pressing plate, bottom connecting piece, rubber sealing ring, damping liquid receiving cavity, gas receiving cavity, viscous damping liquid, inert gas, outer cylinder top cover, the bottom connecting piece is installed in the bottom outside of outer cylinder, the outer cylinder top cover is installed in the top of outer cylinder, the movable pressing plate is placed in the inside of outer cylinder, and the upper part separated out is damping liquid receiving cavity, and the lower part is gas receiving cavity, the piston type damping plate, first reset spring, second reset spring, rubber sealing ring are placed in the damping liquid receiving cavity, the top connecting piece is installed in the top outside of outer sleeve, the piston rod is installed in the top inside of outer sleeve, passes through outer cylinder top cover and is connected with piston type damping plate, the damping liquid receiving cavity is filled with viscous damping liquid, and the gas receiving cavity is filled with inert gas.

[0007] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper belongs to civil engineering industry, and the device includes outer sleeve, top connecting piece, piston rod, piston type damping plate, first reset spring, second reset spring, outer cylinder, movable pressing plate, bottom connecting piece, rubber sealing ring, damping liquid receiving cavity, gas receiving cavity, viscous damping liquid, inert gas, outer cylinder top cover, the bottom connecting piece is installed in the bottom outside of outer cylinder, the outer cylinder top cover is installed in the top of outer cylinder, the movable pressing plate is placed in the inside of outer cylinder, and the upper part separated out is damping liquid receiving cavity, and the lower part is gas receiving cavity, the piston type damping plate, first reset spring, second reset spring, rubber sealing ring are placed in the damping liquid receiving cavity, the top connecting piece is installed in the top outside of outer sleeve, the piston rod is installed in the top inside of outer sleeve, passes through outer cylinder top cover and is connected with piston type damping plate, the damping liquid receiving cavity is filled with viscous damping liquid, and the gas receiving cavity is filled with inert gas.

[0008] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper belongs to civil engineering industry, and the device includes outer sleeve, top connecting piece, piston rod, piston type damping plate, first reset spring, second reset spring, outer cylinder, movable pressing plate, bottom connecting piece, rubber sealing ring, damping liquid receiving cavity, gas receiving cavity, viscous damping liquid, inert gas, outer cylinder top cover, the bottom connecting piece is installed in the bottom outside of outer cylinder, the outer cylinder top cover is installed in the top of outer cylinder, the movable pressing plate is placed in the inside of outer cylinder, and the upper part separated out is damping liquid receiving cavity, and the lower part is gas receiving cavity, the piston type damping plate, first reset spring, second reset spring, rubber sealing ring are placed in the damping liquid receiving cavity, the top connecting piece is installed in the top outside of outer sleeve, the piston rod is installed in the top inside of outer sleeve, passes through outer cylinder top cover and is connected with piston type damping plate, the damping liquid receiving cavity is filled with viscous damping liquid, and the gas receiving cavity is filled with inert gas.

[0009] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, the outer sleeve and outer cylinder are cylindrical, and the inner diameter of the outer sleeve is equal to the outer diameter of the outer cylinder.

[0010] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, the rubber sealing ring is installed in the inside of the hole of the outer cylinder top cap.

[0011] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, the piston rod passes through the hole of the outer cylinder top cap and is welded with the outer sleeve, piston type damping plate.

[0012] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, the viscous damping liquid is stable in performance and is not sensitive to environmental temperature.

[0013] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, one end of the first reset spring is welded to the inside of the top of the outer cylinder, and the other end is welded to the piston type damping plate, one end of the second reset spring is welded to the piston type damping plate, and the other end is welded to the movable pressing plate, and the first reset spring and the second reset spring are used to help the piston type damping plate reset.

[0014] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, the piston type damping plate is disc-shaped, a plurality of circular damping plate holes are formed in the upper surface of the piston type damping plate, and the viscous damping liquid increases in flow rate after passing through the circular holes, thereby generating damping force to dissipate energy.

[0015] The utility model discloses a solid gas dual-phase composite self-resetting viscous damper, the inert gas in the gas containing cavity can generate pressure after being compressed or stretched, and can better help the spring reset.

[0016] The utility model discloses a mounting method of a solid gas dual-phase composite self-resetting viscous damper, and the mounting mode of the damper is as follows:

[0017] 1), the rubber sealing ring (10) is clamped in the inside of the hole of the outer cylinder top cap (15).

[0018] 2), the piston rod (3) passes through the hole of the outer cylinder top cap (15) and is welded with the piston type damping plate (4), one end of the first reset spring (5) is welded on one side of the piston type damping plate (4), the other end is welded on the inside of the outer cylinder top cap (15), one end of the second reset spring (6) is welded on the other side of the piston type damping plate (4), the other end is welded on the movable pressing plate (8), and then the whole is placed in the outer cylinder (7).

[0019] 3) Pour the viscous damping liquid (13) from the top of the outer cylinder (7) into the entire damping liquid receiving cavity (11).

[0020] 4) Weld the outer cylinder top cover (15) to the outer cylinder (7).

[0021] 5) Weld the top connecting piece (2) to the outside of the top of the outer sleeve (1), and weld the piston rod (3) to the inside of the top of the outer sleeve (1).

[0022] 6) Remove the air in the gas receiving cavity (12) from the bottom hole of the outer cylinder (7), and pour in the inert gas (14).

[0023] 7) Weld the bottom connecting piece (9) to the outside of the bottom of the outer cylinder (7), and block the bottom hole of the outer cylinder (7), thereby completing the installation.

[0024] Beneficial effects

[0025] In view of the current situation that the residual strain of the existing viscous damper is too large and has no self-resetting function, the utility model provides a self-resetting composite viscous damper which realizes damping medium shock absorption and energy dissipation, and gas medium and spring reset, and can greatly improve the service life and energy dissipation and shock absorption effect of the self-resetting viscous damper. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure schematic view of the utility model;

[0027] Figure 2 It is the structure sectional view of the utility model;

[0028] Figure 3 It is the vertical structure explosion view of the utility model;

[0029] In the drawing: 1-outer sleeve; 2-top connecting piece; 3-piston rod; 4-piston type damping plate; 5-first reset spring; 6-second reset spring; 7-outer cylinder; 8-movable pressing plate; 9-bottom connecting piece; 10-rubber sealing ring; 11-damping liquid receiving cavity; 12-gas receiving cavity; 13-viscous damping liquid; 14-inert gas; 15-outer cylinder top cover. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] As Figure 2The shown solid-gas dual-phase composite self-resetting viscous damper comprises 1-outer sleeve; 2-top connecting piece; 3-piston rod; 4-piston type damping plate; 5-first reset spring; 6-second reset spring; 7-outer cylinder; 8-movable pressing plate; 9-bottom connecting piece; 10-rubber sealing ring; 11-damping liquid receiving cavity; 12-gas receiving cavity; 13-viscous damping liquid; 14-inert gas; 15-outer cylinder top cover. The bottom connecting piece is installed on the outside of the bottom of the outer cylinder; the outer cylinder top cover is installed on the top of the outer cylinder; the movable pressing plate is placed inside the outer cylinder, the upper part separated by the movable pressing plate is the damping liquid receiving cavity, and the lower part is the gas receiving cavity; the piston type damping plate, the first reset spring, the second reset spring and the rubber sealing ring are placed in the damping liquid receiving cavity; the top connecting piece is installed on the outside of the top of the outer sleeve; the piston rod is installed on the inside of the top of the outer sleeve, penetrates through the outer cylinder top cover and is connected with the piston type damping plate; the damping liquid receiving cavity is filled with viscous damping liquid; and the gas receiving cavity is filled with inert gas.

[0032] The bottom of the outer cylinder is provided with a hole, and the outer cylinder top cover is also provided with a hole, and the outer cylinder top cover is welded with the outer cylinder.

[0033] The top connecting piece is welded with the outer sleeve, and the bottom connecting piece is welded with the outer cylinder and blocks the hole at the bottom of the outer cylinder.

[0034] The outer sleeve and the outer cylinder are both cylindrical, and the inner diameter of the outer sleeve is equal to the outer diameter of the outer cylinder.

[0035] The rubber sealing ring is installed on the inside of the hole of the outer cylinder top cover.

[0036] The piston rod penetrates through the hole of the outer cylinder top cover and is welded with the outer sleeve and the piston type damping plate.

[0037] The viscous damping liquid used is a damping medium with stable performance and not sensitive to environmental temperature.

[0038] One end of the first reset spring is welded on the inside of the top of the outer cylinder, and the other end is welded on the piston type damping plate; one end of the second reset spring is welded on the piston type damping plate, and the other end is welded on the movable pressing plate; the first reset spring and the second reset spring are used to help the piston type damping plate reset.

[0039] The piston type damping plate is disc-shaped, and a plurality of circular damping plate holes penetrating through the damping plate are formed on the upper surface of the piston type damping plate, and the viscous damping liquid increases in flow rate after passing through the circular holes, thereby generating damping force to dissipate energy.

[0040] The inert gas in the gas receiving cavity can generate pressure after being compressed or stretched, which can better help the spring reset.

[0041] The use method of the solid-gas dual-phase composite self-resetting viscous damper is as follows:

[0042] (1), the rubber seal ring (10) hoop in the outer cylinder top cover (15) hole inside.

[0043] (2), the piston rod (3) through the outer cylinder top cover (15) hole and piston type damping plate (4) welding, first reset spring (5) one end is welded on the piston type damping plate (4) one side, the other end is welded in the outer cylinder top cover (15) inside, the second reset spring (6) one end is welded on the other side of the piston type damping plate (4), the other end is welded on the movable pressing plate (8), then put the whole into the outer cylinder (7).

[0044] (3), the viscous damping liquid (13) from the top of the outer cylinder (7) into, fill the whole damping liquid containing cavity (11).

[0045] (4), the outer cylinder top cover (15) and the outer cylinder (7) welding.

[0046] (5), the top connecting piece (2) is welded to the outer sleeve (1) top outside, the piston rod (3) is welded to the outer sleeve (1) top inside.

[0047] (6), the air in the gas containing cavity (12) is removed from the bottom hole of the outer cylinder (7), and inert gas (14) is filled.

[0048] (7), the bottom connecting piece (9) is welded to the outer cylinder (7) bottom outside, and the bottom hole of the outer cylinder (7) is blocked, so as to complete the installation.

[0049] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacement within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope of the claims.

Claims

1. A solid-gas dual-phase composite self-centering viscous damper, characterized in that: The device comprises an outer sleeve (1), a top connector (2), a piston rod (3), a piston damping plate (4), a first reset spring (5), a second reset spring (6), an outer cylinder (7), a movable pressing plate (8), a bottom connector (9), a rubber sealing ring (10), a damping liquid storage cavity (11), a gas storage cavity (12), viscous damping liquid (13), inert gas (14), and an outer cylinder top cover (15). The bottom connector (9) is installed on the outside of the bottom of the outer cylinder (7). The outer cylinder top cover (15) is installed on the top of the outer cylinder (7). The movable pressing plate (8) is placed inside the outer cylinder (7), and the upper part separated by the movable pressing plate (8) is the damping liquid storage cavity (11), and the lower part is the gas storage cavity (12). The piston damping plate (4), the first reset spring (5), the second reset spring (6), and the rubber sealing ring (10) are placed in the damping liquid storage cavity (11). The top connector (2) is installed on the outside of the top of the outer sleeve (1). The piston rod (3) is installed on the inside of the top of the outer sleeve (1) and is connected with the piston damping plate (4) through the outer cylinder top cover (15). The damping liquid storage cavity (11) is filled with viscous damping liquid (13). The gas storage cavity (12) is filled with inert gas (14).

2. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: The bottom of the outer cylinder (7) is provided with a hole, and the outer cylinder top cover (15) is also provided with a hole. The outer cylinder top cover (15) is welded with the outer cylinder (7).

3. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: The top connector (2) is welded with the outer sleeve (1), and the bottom connector (9) is welded with the outer cylinder (7) and blocks the hole in the bottom of the outer cylinder (7).

4. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: The outer sleeve (1) and the outer cylinder (7) are both cylindrical, and the inner diameter of the outer sleeve (1) is equal to the outer diameter of the outer cylinder (7).

5. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, wherein: The rubber sealing ring (10) is installed on the inside of the hole of the outer cylinder top cover (15).

6. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, wherein: The piston rod (3) is welded with the outer sleeve (1) and the piston damping plate (4) through the hole of the outer cylinder top cover (15).

7. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: The viscous damping liquid (13) used is a stable performance damping medium that is not sensitive to environmental temperature.

8. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: One end of the first reset spring (5) is welded on the inside of the top of the outer cylinder (7), and the other end is welded on the piston damping plate (4). One end of the second reset spring (6) is welded on the piston damping plate (4), and the other end is welded on the movable pressing plate (8). The first reset spring (5) and the second reset spring (6) are used to help reset the piston damping plate (4).

9. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: The piston damping plate (4) is disc-shaped, and a plurality of circular damping plate holes penetrating the damping plate are formed on the upper surface of the piston damping plate (4). The viscous damping liquid (13) flows faster after passing through the circular holes, thereby generating damping force to dissipate energy.

10. The solid-gas dual-phase composite self-centering viscous damper according to claim 1, characterized in that: The inert gas (14) in the gas storage cavity (12) generates pressure after being compressed or stretched, which can better help the spring reset.