WO2014008839A1

WO2014008839A1 - Node type inflated rack structure

Info

Publication number: WO2014008839A1
Application number: PCT/CN2013/078931
Authority: WO
Inventors: 唐戍鸣
Original assignee: Tang Shuming
Priority date: 2012-07-12
Filing date: 2013-07-05
Publication date: 2014-01-16
Also published as: CN102808452A; CN102808452B

Abstract

Disclosed is a node type inflated rack structure formed by connecting a plurality of independent air-tight inflating units and node devices and then filling gas. The independent air-tight inflating units are mechanically connected with the node devices through connecting rods, the independent air-tight inflating units are connected with a gas source through air inlet pipes to form an air circulation pipeline, and the mechanical joints of the independent air-tight inflating units and the node devices and the air inlet joints of the independent air-tight inflating units are mutually independent. Because the mechanical joints of the inflating units and the node devices and the air inlet joints of the inflating units are mutually independent, the structure at each mechanical connector can be effectively simplified; and general standard design can be adopted at each air inlet connector, so that the manufacturing cost and the process difficulty are effectively reduced. Air is inflated to the inflating units through one-way air inlet valves, and the air is exhausted through pressure reducing valves when the pressure in the inflating units is over high, so that a function of automatically adjusting the pressure of the air in the inflating units is realized.

Description

Node type gas grid structure

Technical field

The invention belongs to the field of movable buildings, and more particularly to an active inflatable net frame and an active inflatable building formed therefrom.

Background technique

The space grid structure is the most competitive type of structure in large-span building structures, which has the advantages of reasonable force, light weight, low cost and good seismic performance. At present, the most promising development of the space grid structure in the construction of temporary and semi-permanent buildings is the inflatable grid structure. Inflatable grid structure is widely used, especially for building exhibition halls, stores, entertainment venues, tourist facilities, military / Civil tents, hangars, etc.

The existing inflatable grid structure is connected by a plurality of membrane tubular bodies and filled with a certain pressure of air to expand, forming a certain space frame. The tubular bodies are connected at the end by glue bonding, stitching or welding to form an integral gas-tight inflatable mesh frame. Since a plurality of tubular bodies are connected as a whole, when a certain point of a tubular body leaks, it affects part of the grid or even collapses the entire grid. Since the tubular body is numerous, it is difficult to find a leak point when the tubular body leaks, and it is difficult to perform the tubular body replacement operation. Since the tubular bodies are integrally bonded one by one, the sealing property of the single pipe cannot be detected, and it is difficult to form a standardized and modular component production. The overall structure is heavy, difficult to handle, and increases the difficulty of construction. The overall shape is in a single form, making it difficult to implement complex spatial structures.

The applicant has applied for a patent for invention (application number is CN201110118835.3 A node type gas grid structure is proposed, which connects the inflatable pipe fittings or the inflating unit through the node device, and the inflatable pipe fittings or the inflating unit are relatively independent and individually sealed, which can effectively control the leakage area and can divide the gas chamber body. The air circulation area and the control gas flow direction are convenient for inflation or exhaust, which effectively solves the shortage of the existing inflatable grid structure. However, the node device between the inflating units in the solution, and the pipe connecting the inflating unit and the node device, while functioning as a mechanical connection, also need to be a pipe through which the gas flows, and undertake the task of conveying the gas. Therefore, the airtightness of the interface between the pipe and the airing unit and the node device is extremely high. The interface needs to be redesigned, which increases the complexity of the interface structure and the difficulty of production and assembly.

technical problem

In view of the above-mentioned defects of the existing node-type gas grid structure, the applicant has improved and provided another node-type gas grid structure, and the mechanical connection pipeline and the inflation pipeline are relatively independent, which can effectively simplify the structure of the mechanical connection interface. And can automatically adjust the air pressure inside the inflatable unit.

Technical solution

The technical solution of the present invention is as follows:

A node type gas grid structure, which is composed of a plurality of independent airtight gas units connected with a node device and filled with a gas, the mechanical connection between the independent airtight gas unit and the node device and the independent airtight inflation The intake connections of the units are independent of each other.

A further technical solution is that the independent airtight inflation unit forms a mechanical connection with the node device through the connecting rod.

A further technical solution is that the independent airtight inflation unit is connected to the gas source through the intake pipe to form an air circulation line.

A further technical solution is that the independent airtight inflatable unit is connected to the node device through a connecting rod, one end of the connecting rod is fixed to the node device through the connecting member, and the other end of the connecting rod is fixed to the air bag clamping member through the connecting member. The body wall of the end of the independent airtight inflatable unit is clamped and fixed by the airbag clip; a one-way intake valve and a pressure reducing valve are installed in each link; the one-way intake valve advances The air end is connected to the first intake pipe through a cavity in the connecting rod, and each of the first intake pipes is respectively connected to the main intake pipe; the exhaust end of the one-way intake valve passes through a cavity and a seat in the connecting rod The intake end of the pressure reducing valve is connected, and the outlet end of the pressure reducing valve is connected with the pressure reducing overflow hole on the connecting rod; the cavity between the one-way intake valve and the pressure reducing valve passes through the second branch A gas pipe is connected to the independently airtight inflatable unit.

A further technical solution is that the node device is a hollow or solid contact ball.

A further technical solution is that a pressure reducing valve adjusting member is installed at the pressure reducing valve.

A further technical solution is that the opening pressure threshold of the pressure reducing valve is greater than the opening pressure threshold of the one-way intake valve.

A further technical solution is that the body wall of the independent airtight inflatable unit is divided into inner and outer layers, and the material is selected from rubber or polymer materials.

A further technical solution is that a gas pressure sensor is installed in the body wall of the independent airtight inflation unit.

Beneficial effect

( 1 Since the mechanical connection between each of the inflatable unit and the node device and the intake connection of each of the inflatable units are independent of each other, the structure at each mechanical connection interface can be simplified, and the common connection design can be adopted at each intake connection interface. , effectively reducing manufacturing costs and process difficulty.

( 2 The gas is inflated through the one-way intake valve, and the air pressure in the gas-filling unit is automatically adjusted by exhausting the pressure-reducing valve when the pressure of the gas-filling unit is excessive.

(3 Since the air chambers of the respective inflating units are relatively independent, during the use of the product, when a certain or part of the inflating unit leaks gas, the leakage area can be effectively controlled without causing the overall collapse.

( 4 Since the gas chambers of the respective inflating units are relatively independent and are respectively equipped with gas pressure sensors having a detecting function, when a leak occurs, it is easy to locate the leaking gas inflating unit, and the parts can be replaced within a certain time range.

(5 In the production process, the unit inflatable unit can be processed as a component, and the airtightness test can be separately performed. After the test is passed, the unit inflatable unit is assembled, and a standardized and modular production mode is easily formed.

(6) Convenient transportation, the sub-frame body can be assembled in the factory, and the inflated net frame body can be assembled on site, and can be disassembled and assembled by itself.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an example of an inflated grid structure constructed in accordance with the present invention.

Figure 2 is an enlarged view of the node of the inflatable grid structure.

Figure 3 is a cross-sectional view of a junction at the node of the inflatable grid structure.

Embodiments of the invention

The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings.

As shown in Fig. 1, the present invention is constructed by a plurality of independently airtight inflatable units 1 in a grid form through a hollow or solid node device. (The partial enlarged view of the joint is shown in Fig. 2). After the connection, the airtight unit 1 is filled with a certain pressure of air to expand it. Each independent airtight unit 1 The air pipes with extremely high strength are formed to jointly form a space inflatable grid structure. The inflatable net frame structure of the present invention can form a double-layer or single-layer plate structure and a double-layer or single-layer shell-type mesh structure structure and the like according to different construction forms.

Figure 1 shows the specific structure of the node of the inflatable grid structure as shown in Figure 2. The independent airtight unit passes through the connecting rod 6 A mechanical connection is made with the node device 9. The independent airtight unit 1 passes through the second intake pipe 12, the first intake pipe 11, and the main intake pipe 13 Connected to a gas source to form an air flow line. Therefore, in the present invention, the mechanical connection of the independently airtight inflation unit 1 to the node device 9 and the intake connection of the independently airtight inflation unit 1 are independent of each other.

The specific structure of a joint of the node in Fig. 2 is shown in Fig. 3. One end of the connecting rod 6 passes through the connecting member 8 and the node device. Fixed, the node device 9 is a hollow or solid contact ball, and the other end of the link 6 is fixed to the air bag clamp 2 by the connecting member 3. Independently airtight inflatable unit 1 The body wall at the end is covered by the airbag clamp 2 The clamp is fixed. A one-way intake valve 7 and a pressure reducing valve 10 are installed in the connecting rod 6, and the opening pressure threshold of the pressure reducing valve 10 is required to be larger than the opening pressure threshold of the one-way intake valve 7. One-way intake valve 7 The intake end is connected to the first intake pipe 11 through a cavity in the connecting rod 6, and the first intake pipe 11 is connected to the main intake pipe 13. The outlet end of the one-way intake valve 7 passes through the connecting rod 6 The inner chamber is connected to the intake end of the pressure reducing valve 10, and the outlet end of the pressure reducing valve 10 is connected to the pressure reducing overflow hole 5 of the connecting rod 6. The bottom of the pressure reducing valve 10 has a slope which is mounted on the connecting rod 6 The upper pressure reducing valve adjusting member 4 is in contact. The slope of the pressure reducing valve 10 can be adjusted by the pressure reducing valve adjusting member 4 pushing the slope. Connecting rod between one-way intake valve 7 and pressure reducing valve 10 The upper chamber is connected to the independently airtight unit 1 through the second intake pipe 12.

In the present invention, the independently airtight inflatable unit 1 The inner wall of the body wall is divided into two layers: the inner layer (inner tube) functions as the airtightness of the inflating unit, and the outer layer (tire tube) functions to protect the inner tube and to withstand the pressure of the inflating unit in the inflated state. The materials of the inner and outer layers may be selected from rubber or polymeric membranes.

In the present invention, the independently airtight inflatable unit 1 A gas pressure sensor can be installed in the body wall to detect the gas pressure of the corresponding inflating unit, and an alarm is issued when a leak occurs, and the remote terminal or server is notified to locate the leaking inflating unit and record the leakage event. To confirm those inflated units that are more frequently faulty.

The processing, installation and maintenance methods of the present invention:

In production, the airtight unit 1 and the node device 9 will be independently airtight. The individual parts are processed separately, and the airtightness test is performed separately, and assembled after passing. It can also be assembled in the factory, and then assembled on site, and can be disassembled. Independently airtight inflator unit 1 through the connecting rod 6 And the node device 9 is connected to the inflatable sub-frame body, and then connected by the inflating sub-frame body through the connecting rod 6 and the node device 9 to form the final inflated net frame body.

The gas grid building is additionally provided with a gas source, the gas source is connected to the main intake pipe 13, and the second intake pipe 12 is used, and the first intake pipe 11 Connect the independently airtight inflator unit 1 and the main intake manifold 13 . Inflate after completing the construction. The diameter of the main intake pipe 13, the first intake pipe 11, and the second intake pipe 12 are relative to the independent airtight inflation unit The diameter of 1 is very small and is attached to the surface of the independently airtight unit 1 and does not affect the shape of the inflated grid structure. So in Figure 1, this pipe is not visible.

The opening pressure of the one-way intake valve 7 can be set to 2kg (this value can be selected as needed, here is only the example), when the inflation pressure is When the pressure is 2 kg or more, the one-way intake valve 7 is opened to inflate the inflation unit 1. The opening pressure of the pressure reducing valve 10 can be set to 2.5 ± 0.2kg (This value can be selected and adjusted according to needs. This is only the embodiment.) When the pressure in the gas unit 1 is too large, exceeding 2.5 ± 0.2kg, the pressure reducing valve 10 is opened and the pressure relief hole is passed through. Exhaust (during the exhaust, since the one-way intake valve 7 is a check valve, it does not open). The pressure reducing valve 10 is when the exhaust gas causes the pressure in the charging unit 1 to decrease below the opening threshold of the pressure reducing valve 10. shut down. Thereby, the air pressure in the independently airtight inflator unit 1 is maintained within the range of the required set value, and the function of automatically adjusting the air pressure in the inflator unit is realized.

When the pressure of the inflated grid structure changes with the temperature, when the pressure increases or decreases, or when a partial leak occurs, the air pressure may be maintained by the above-mentioned structure automatically replenishing or decompressing.

The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment. It is to be understood that other modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

A node type gas grid structure, which is composed of a plurality of independent airtight gas units connected with a node device and filled with a gas, characterized in that: the mechanical connection between the independent airtight gas unit and the node device and the independent The air intake connections of the airtight inflator are independent of each other.
The nodal air grid structure according to claim 1, wherein said independent airtight inflation unit is mechanically coupled to the node device via a connecting rod.
The nodal air grid structure according to claim 1, wherein the independent airtight inflation unit is connected to the gas source through an intake pipe to form an air circulation line.
According to claim 1 or 2 or 3 The node-type gas grid structure is characterized in that: the independent air-tight gas-filling unit is connected to the node device through a connecting rod, one end of the connecting rod is fixed with the node device through the connecting member, and the other end of the connecting rod is connected through the connecting member The airbag clip is fixed, and the body wall of the end of the independent airtight inflatable unit is clamped and fixed by the airbag clip; a one-way intake valve and a pressure reducing valve are installed in each link; The intake end of the intake valve is connected to the first intake pipe through a cavity in the connecting rod, and each of the first intake pipes is respectively connected to the main intake pipe; the exhaust end of the one-way intake valve passes through the connecting rod The inner cavity is connected to the intake end of the pressure reducing valve, and the outlet end of the pressure reducing valve is connected with the pressure reducing overflow hole on the connecting rod; the cavity between the one-way intake valve and the pressure reducing valve The body is connected to the independent airtight inflation unit through a second intake pipe.
The nodal air grid structure according to claim 4, wherein the node device is a hollow or solid contact ball.
The nodal air grid structure according to claim 4, wherein the pressure reducing valve is provided with a pressure reducing valve adjusting member.
The nodal air grid structure according to claim 4, wherein the opening pressure threshold of the pressure reducing valve is greater than an opening pressure threshold of the one-way intake valve.
The nodal air grid structure according to claim 4, wherein the body wall of the independently airtight inflatable unit is divided into inner and outer layers, and the material is selected from rubber or polymer materials.
The nodal air grid structure according to claim 4, wherein a gas pressure sensor is installed in the body wall of the independent airtight inflation unit.