CN210978332U

CN210978332U - Gas spring viscous damper

Info

Publication number: CN210978332U
Application number: CN201922104144.2U
Authority: CN
Inventors: 张辉东; 刘绪佳; 刘国际
Original assignee: Tianjin Chengjian University
Current assignee: Tianjin Chengjian University
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-10
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to an air spring viscous damper, including piston rod, cylinder body, spring, the piston rod end is fixed and is equipped with the piston, the piston rod is located the cylinder body one end that is equipped with the piston, and the piston divide into outer cylinder and inner cylinder with the cylinder body, the spring housing is established on the piston rod, and both ends respectively with piston and outer cylinder end fixed connection, outer cylinder end is equipped with the air-vent valve of control admitting air and giving vent to anger, inner cylinder end is equipped with the gas pocket, and is equipped with the valve that communicates with the gas pocket on the cylinder body lateral wall, the valve external connection manometer and air pump; the piston rod moves axially along the cylinder body in the cylinder body to play a role in damping. The utility model discloses elasticity is higher to have good damping performance, more be fit for the application on the building.

Description

Gas spring viscous damper

Technical Field

The utility model belongs to the technical field of the building engineering part, especially, relate to an air spring viscous damper.

Background

The plunger sealed nitrogen spring is generally composed of a plunger, a dustproof retainer ring, a dustproof ring, a steel wire retainer ring, a static seal, a dynamic seal, a cylinder body, a plunger sleeve, a guide ring, nitrogen, an inflation valve and a plug, wherein the nitrogen is filled in an antibody, a piston rod and a piston can slide in the cylinder body, and the pressure in the cylinder body is controlled by the inflation valve.

Therefore, based on some characteristics of the plunger sealed nitrogen spring, the viscous damper with high elasticity is provided, has good damping performance, is more suitable for architectural application, and has important practical significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a viscous damper that elasticity is higher to have good damping performance, more be fit for the application on the building.

The utility model provides a its technical problem take following technical scheme to realize:

a gas spring viscous damper comprises a piston rod, a cylinder body and a spring, wherein a piston is fixedly arranged at the tail end of the piston rod, one end of the piston rod, provided with the piston, is positioned in the cylinder body, the piston divides the cylinder body into an outer cylinder and an inner cylinder, the spring is sleeved on the piston rod, two ends of the spring are respectively and fixedly connected with the piston and the end part of the outer cylinder, a pressure regulating valve for controlling air inlet and outlet is arranged at the end part of the outer cylinder, an air hole is arranged at the end part of the inner cylinder, a valve communicated with the air hole is arranged on the side wall of the cylinder body;

the piston rod moves axially along the cylinder body in the cylinder body to play a role in damping.

Further, the outer cylinder is filled with air, and the inner cylinder is filled with inert gas.

Furthermore, the piston is sleeved with at least one pair of guide rings.

Furthermore, the pressure regulating valve is a one-way valve and at least one pair of one-way valves with opposite gas flowing directions.

The utility model has the advantages that:

the utility model has the advantages that according to the gas balance equation under the constant temperature state, the performance is far higher than that of the traditional spring, and the energy consumption property is provided; the end part of the outer cylinder is provided with a pressure regulating valve, so the viscous damper has the property of a certain viscous damper; the inner cylinder is externally connected with a pressure gauge and an air pump through a valve, and has certain predictability to earthquake through the action of the pressure gauge; and the performance of the damper is controlled to a certain extent through the action of the air pump.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

Fig. 1 is a cross-sectional view of a gas spring viscous damper according to an embodiment of the present invention;

fig. 2 is a top view of an outer cylinder end of a gas spring viscous damper in accordance with an embodiment of the present invention;

Detailed Description

First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present invention will be described in detail with reference to fig. 1 to 2.

Example 1

Fig. 1 is a cross-sectional view of a gas spring viscous damper according to an embodiment of the present invention; fig. 2 is a top view of an outer cylinder end of a gas spring viscous damper in accordance with an embodiment of the present invention; as shown in fig. 1-2, the gas spring viscous damper provided in this embodiment includes a piston rod 1, a cylinder body, and a spring 6, where a piston 4 is fixedly disposed at a tail end of the piston rod 1, one end of the piston rod 1, where the piston 4 is disposed, is located in the cylinder body, the cylinder body is divided into an outer cylinder 2.1 and an inner cylinder 2.2 by the piston 4, the spring 6 is sleeved on the piston rod 1, and two ends of the spring are respectively and fixedly connected with ends of the piston 4 and the outer cylinder 2.1, a pressure regulating valve 3 for controlling air intake and air outlet is disposed at an end of the outer cylinder 2.1, an air hole 7 is disposed at an end of the inner cylinder 2.2, a valve 8 communicated with the air hole 7 is disposed on a;

the piston rod 1 moves axially along the cylinder body in the cylinder body to play a role in damping.

At least one pair of guide rings is sleeved on the piston 4, and as shown in fig. 1, the guide rings 5.1 and 5.2 are sleeved on the piston 4.

The pressure regulating valves 3 are four check valves, as shown in fig. 2, the check valves can be common check valves in the market, the gas circulation directions of the check valves are opposite in pairs, and the outer cylinder 2.1 can be considered to be filled with air.

In specific application, in order to enhance the performance, the inner cylinder 2.2 can be filled with inert gas with a certain pressure, such as nitrogen; the pressure of the piston rod 1 needs to be balanced with the pressure of the spring 6 and the pressure regulating valve 3, the pressure intensity of the piston rod is controlled by the air pump and the pressure gauge, and the piston rod 1 moves axially in the cylinder body to play a role in damping.

In order to enhance the sealing performance, the piston 4 is sleeved with a guide ring 5.1 and a guide ring 5.2 respectively.

By way of example, in the present embodiment, when the piston rod is stressed, the piston moves axially along the cylinder body in the cylinder body, the gas in the cylinder body is compressed, and the resistance is generated according to the gas balance equation under the constant temperature state, namely PV (M/M) × RT ═ C; furthermore, the spring acts simultaneously when the gas in the outer cylinder expands, so that the gas in the outer cylinder generates resistance; further, the pressure of the outer cylinder can be adjusted when the pressure regulating valve is closed or opened, viscous resistance is generated by the gas passing through the pressure regulating valve, and the three components act together to achieve the purposes of energy dissipation and shock absorption.

Before the earthquake comes and is greatly damaged, the structure has a tiny vibration, the air pressure of the inner cylinder has tiny fluctuation, and the structure can have certain predictability through the identification of a sensitive pressure gauge and external equipment; in addition, in an earthquake, the mechanical property of the device can be improved or reduced according to the air pump, the pressure gauge, the valve and the external device, so that the response capability of the structure to the earthquake is changed.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A gas spring viscous damper, its characterized in that: the air inlet and outlet control valve comprises a piston rod (1), a cylinder body and a spring (6), wherein a piston (4) is fixedly arranged at the tail end of the piston rod (1), one end, provided with the piston (4), of the piston rod (1) is located in the cylinder body, the piston (4) divides the cylinder body into an outer cylinder (2.1) and an inner cylinder (2.2), the spring (6) is sleeved on the piston rod (1), two ends of the spring are fixedly connected with the piston (4) and the end of the outer cylinder (2.1), a pressure regulating valve (3) for controlling air inlet and outlet is arranged at the end of the outer cylinder (2.1), an air hole (7) is formed in the end of the inner cylinder (2.2), a valve (8) communicated with the air hole (7) is arranged on the side wall of the cylinder body;

the piston rod (1) moves axially along the cylinder body in the cylinder body to play a role in damping.

2. A gas spring viscous damper according to claim 1, further characterized by: the outer cylinder (2.1) is filled with air, and the inner cylinder (2.2) is filled with inert gas.

3. A gas spring viscous damper according to claim 1, further characterized by: at least one pair of guide rings is sleeved on the piston (4).

4. A gas spring viscous damper according to claim 1, further characterized by: the pressure regulating valve (3) is a one-way valve and at least one pair of one-way valves with opposite gas flowing directions.