CN210978332U - Gas spring viscous damper - Google Patents

Abstract

The utility model relates to a gas spring viscous damper, which comprises a piston rod, a cylinder body and a spring. The end of the piston rod is fixedly provided with a piston, the end of the piston rod provided with the piston is located in the cylinder body, and the piston The cylinder is divided into an outer cylinder and an inner cylinder, the spring is sleeved on the piston rod, and the two ends are respectively fixedly connected with the piston and the end of the outer cylinder. A pressure valve, the end of the inner cylinder is provided with a gas hole, and the side wall of the cylinder is provided with a valve communicating with the gas hole, the valve is externally connected to a pressure gauge and an air pump; The axial movement of the cylinder body acts as a shock absorber. The utility model has high elasticity and good shock absorption performance, and is more suitable for architectural applications.

Description

A gas spring viscous damper

technical field

The utility model belongs to the technical field of construction engineering components, in particular to a gas spring viscous damper.

Background technique

Plunger sealed nitrogen gas spring is usually composed of plunger, dustproof collar, dustproof ring, steel wire collar, static seal, dynamic seal, cylinder block, plunger sleeve, guide ring, nitrogen gas, inflation valve, and screw plug. Nitrogen is filled in the body, the piston rod and the piston can slide in the cylinder, and the pressure in the cylinder is controlled by the inflation valve; at present, the piston-sealed nitrogen gas spring has not been used in the building structure, but it has excellent elasticity. Regarding the spring, according to the Shenzhen Mould Technology Association·Industry News about the KALLER-brand nitrogen gas spring, the elastic force generated by the plunger rod as thick as a finger can be as high as 6KN.

Therefore, it is of great practical significance to provide a viscous damper with high elasticity and good shock absorption performance based on some characteristics of the plunger-sealed nitrogen gas spring, which is more suitable for architectural applications.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, to provide a viscous damper with high elasticity and good shock absorption performance, which is more suitable for architectural applications.

The utility model solves its technical problems by adopting the following technical solutions:

A gas spring viscous damper, comprising a piston rod, a cylinder body and a spring, the end of the piston rod is fixedly provided with a piston, the end of the piston rod provided with the piston is located in the cylinder body, and the piston drives the cylinder The body is divided into an outer cylinder and an inner cylinder, the spring is sleeved on the piston rod, and the two ends are respectively fixedly connected with the piston and the end of the outer cylinder, and the end of the outer cylinder is provided with a pressure regulating valve for controlling intake and exhaust. , the end of the inner cylinder is provided with an air hole, and the side wall of the cylinder body is provided with a valve communicating with the air hole, and the valve is externally connected to a pressure gauge and an air pump;

The piston rod moves in the cylinder along the axial direction of the cylinder to act as a shock absorber.

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

Further, at least a pair of guide rings are sleeved on the piston.

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

The advantages and positive effects of the present utility model are:

According to the gas balance equation in a constant temperature state, the performance of the utility model is much higher than that of the traditional spring, and it has the property of energy consumption; and the end of the outer cylinder is provided with a pressure regulating valve, so it also has the properties of a certain viscous damper; The cylinder is externally connected to the pressure gauge and the air pump through the valve, and through the action of the pressure gauge, it has a certain predictability for earthquakes; and through the action of the air pump, it has a certain control effect on the performance of the damper.

Description of drawings

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments, but it should be known that these drawings are only designed for the purpose of explanation, and therefore are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended only to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

1 is a structural cross-sectional view of a gas spring viscous damper provided by an embodiment of the present utility model;

2 is a top view of the end of the outer cylinder of the gas spring viscous damper provided by the embodiment of the present utility model;

Detailed ways

First of all, it should be noted that the specific structure, features and advantages of the present invention will be described in detail below by way of examples, but all descriptions are only used for illustration, and should not be construed as forming the formation of the present invention. any restrictions. In addition, any single technical feature described or implied in the various embodiments mentioned herein, or any single technical feature shown or implied in the respective drawings, can still be used in these technical features (or their equivalents). ) in any combination or omission to obtain yet more other embodiments of the present invention that may not be directly mentioned herein. In addition, in order to simplify the drawings, the same or similar technical features may only be marked in one place in the same drawing.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

The present utility model will be described in detail below with reference to FIG. 1 to FIG. 2 .

Example 1

Fig. 1 is a structural cross-sectional view of a gas spring viscous damper provided by an embodiment of the present utility model; Fig. 2 is a top view of an outer cylinder end of the gas spring viscous damper provided by an embodiment of the present utility model; Figs. 1-2 As shown, the gas spring viscous damper provided in this embodiment includes a piston rod 1, a cylinder body, and a spring 6. The end of the piston rod 1 is fixedly provided with a piston 4, and the end of the piston rod 1 provided with the piston 4 is located at the end of the piston rod 1. In the cylinder, and the piston 4 divides the cylinder into an outer cylinder 2.1 and an inner cylinder 2.2, the spring 6 is sleeved on the piston rod 1, and the two ends are respectively fixed with the ends of the piston 4 and the outer cylinder 2.1 Connection, the end of the outer cylinder 2.1 is provided with a pressure regulating valve 3 for controlling intake and outlet, the end of the inner cylinder 2.2 is provided with an air hole 7, and the side wall of the cylinder is provided with a valve 8 that communicates with the air hole 7, The valve 8 is externally connected to a pressure gauge and an air pump;

The piston rod 1 moves in the cylinder along the axial direction of the cylinder to act as a shock absorber.

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

The pressure regulating valve 3 is a one-way valve, four of which can be installed, as shown in Figure 2, the one-way valve can be a one-way valve commonly used in the market, and the gas flow direction of the one-way valve is opposite to each other. It can be considered that the outer cylinder 2.1 Filled with air.

In specific applications, in order to enhance its performance, the inner cylinder 2.2 can be filled with an inert gas with a certain pressure, such as nitrogen; its pressure needs to be balanced with the pressure of the spring 6 and the pressure regulating valve 3, and its pressure is controlled by an air pump and a pressure gauge size, the piston rod 1 moves in the cylinder along the axial direction of the cylinder to act as a shock absorber.

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

As an example, in this embodiment, when the piston rod is stressed, the piston moves in the cylinder along the axial direction of the cylinder, and the gas in the inner cylinder is compressed. According to the gas balance equation in a constant temperature state, PV=(m /M)*RT=C, to make it generate resistance; further, when the gas in the outer cylinder expands, the spring acts simultaneously to make it generate resistance; further, the closing and opening of the pressure regulating valve will adjust the pressure of the outer cylinder, And according to the gas passing through the pressure regulating valve to generate viscous resistance, the three work together to achieve the purpose of energy dissipation and shock absorption.

When the earthquake comes before the major damage, the structure will have a slight vibration, and the air pressure of the inner cylinder will have a slight fluctuation. Through the identification of the sensitive pressure gauge and external equipment, it can have certain predictability; , pressure gauges, valves and external equipment to improve or reduce the mechanical properties of the equipment, thereby changing the response of the structure itself to earthquakes.

The above embodiments describe the present invention in detail, but the contents are only preferred embodiments of the present invention, and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present utility model should still belong to the scope of the patent of the present utility model.

Claims (4)

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.

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