A connecting joint of pressure cloth and metal frame and a pressure cabin containing the joint

CN224931179UActive Publication Date: 2026-11-03TIBET RAILWAY CONSTR HEAVY IND TECH CO LTD
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Patent Information

Application Number
CN202522734403.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-11-03
Estimated Expiration
2035-12-24

AI Technical Summary

Technical Problem

The existing connection method between the pressure-bearing fabric and the metal frame is unreliable and has poor sealing performance. Its performance deteriorates, especially in harsh environments, which affects the safety and service life of the pressurization chamber.

Method used

The system employs a combination structure of connecting component one and connecting component two. Connecting component one includes a metal pressure plate and bolts, while connecting component two is an anti-detachment rope. The sealing component includes a sealing strip and a sealing ring. The metal pressure plate is fixed to the metal frame by bolts, and the anti-detachment rope is fixed to the edge of the pressure-bearing cloth. The double-layer rolled edge design enhances the connection strength, and the sealing component ensures airtightness.

Benefits of technology

This design achieves a reliable connection between the pressure-bearing fabric and the metal frame, preventing the pressure-bearing fabric from being torn out under pressure differential, ensuring the safety and service life of the pressurization chamber, and improving the stability and sealing performance of the connection.

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Abstract

The utility model relates to the technical field of bearing pressure construction, specifically provide a kind of bearing pressure cloth and the connecting node of metal frame and contain the pressurized cabin of this node, connecting node includes connecting assembly and sealing assembly, connecting assembly includes connecting assembly one and connecting assembly two;Connecting assembly one is connected with metal frame, bearing pressure cloth is arranged between connecting assembly one and metal frame;Connecting assembly two is set on bearing pressure cloth, and connecting assembly two is set out from connecting assembly one;Sealing assembly is set on connecting assembly and between connecting assembly and metal frame.The utility model provides the connecting node, reliable connection between bearing pressure cloth and metal frame is realized by connecting assembly one and connecting assembly two cooperation, prevent bearing pressure cloth under larger pressure difference to be pulled out, realize the sealing of connecting node by the setting of sealing assembly;The synergic effect of connecting assembly and sealing assembly guarantees the performance of pressurized cabin, improves the safety and service life of pressurized cabin.
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Description

Technical Field

[0001] This utility model relates to the field of pressure-bearing building technology, specifically to a connection node between a pressure-bearing fabric and a metal frame, and a pressurization chamber containing the node. Background Technology

[0002] With continuous technological advancements and rising demands for quality of life, the demand for pressurized buildings and equipment is constantly increasing across various fields. Whether creating comfortable living environments for people in high-altitude areas or meeting specific work requirements in specialized industries, pressurized chambers play a crucial role. In pressurized chamber products that combine rigid and flexible materials, the connection and sealing between the pressure-bearing fabric and the metal frame are paramount, directly affecting the performance, safety, and service life of the pressurized chamber.

[0003] While existing bonding methods can guarantee a certain level of sealing performance, the connection is not reliable enough. Over time, adhesives are prone to aging, causing the pressure-bearing fabric to detach from the metal frame, thus creating a safety hazard. Moreover, different adhesives exhibit significant performance variations under different environmental conditions. For example, in harsh natural environments such as high-altitude areas with dryness, extreme cold, and oxygen deficiency, the performance of adhesives may be severely affected, further reducing the reliability of the connection. In addition, because the pressure-bearing fabric cannot withstand high temperatures, welding and riveting cannot be used to connect the pressure-bearing fabric to the metal frame. Direct bolt connections can also achieve the connection between the pressure-bearing fabric and the metal frame, but they also have problems such as difficulty in guaranteeing sealing performance, and the pressure-bearing fabric is easily torn out under large pressure differences, thus affecting the safety and normal operation of the pressurization chamber.

[0004] In summary, there is an urgent need to provide a connection node between the pressure-bearing fabric and the metal frame, as well as a pressurization chamber containing the node, to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a connection node between a pressure-bearing fabric and a metal frame, and a pressurization chamber containing the node. The specific technical solution is as follows: A connection node between a pressure-bearing fabric and a metal frame includes a connection component and a sealing component, wherein the connection component includes a first connection component and a second connection component; The first connecting component is connected to the metal frame and is pressure-bearing cloth between the first connecting component and the metal frame; the second connecting component is disposed on the pressure-bearing cloth and protrudes from the first connecting component. The sealing component is disposed on the connecting component and between the connecting component and the metal frame.

[0006] Furthermore, the connecting component includes multiple metal pressure plates and connectors, with the multiple metal pressure plates connected end to end and fixed to the metal frame by the connectors.

[0007] Furthermore, the metal pressure plate includes a protrusion and a connecting portion, the connecting portion being located at both ends of the protrusion, the connecting portions of two adjacent metal pressure plates overlapping, and the protrusions of two adjacent metal pressure plates being arranged in opposite directions.

[0008] Furthermore, the second connecting component adopts an anti-detachment rope, which is fixed to the edge of the pressure-bearing cloth.

[0009] Furthermore, the edge of the pressure-bearing fabric is double-rolled, and the anti-slip rope is wrapped inside the double-rolled edge.

[0010] Furthermore, the sealing assembly includes a sealing strip and a sealing ring, the sealing strip being disposed between the pressure-bearing cloth and the metal frame, and the sealing ring being disposed between the connector and the metal pressure plate.

[0011] Furthermore, the diameter of the anti-detachment rope is greater than the sum of the thickness of the sealing strip and twice the thickness of the pressure-bearing cloth.

[0012] Furthermore, the connector is made of bolts.

[0013] A pressurized chamber includes a pressure-bearing fabric and a metal frame, wherein the pressure-bearing fabric and the metal frame are sealed together by connection nodes as described above.

[0014] The application of the technical solution of this utility model has the following beneficial effects: (1) This utility model provides a connection node between a pressure-bearing fabric and a metal frame, including a connecting component and a sealing component. The connecting component includes a first connecting component and a second connecting component. The first connecting component is connected to the metal frame, and the pressure-bearing fabric is disposed between the first connecting component and the metal frame. The second connecting component is disposed on the pressure-bearing fabric and protrudes from the first connecting component. The sealing component is disposed on the connecting component and between the connecting component and the metal frame. The connection node provided by this utility model achieves a reliable connection between the pressure-bearing fabric and the metal frame through the cooperation of the first connecting component and the second connecting component, preventing the pressure-bearing fabric from being torn out under a large pressure difference. The sealing component achieves the sealing of the connection node. The synergistic effect of the connecting component and the sealing component ensures the performance of the pressurization chamber and improves the safety and service life of the pressurization chamber.

[0015] (2) In this utility model, the first connecting component includes multiple metal pressure plates and connectors (bolts). The multiple metal pressure plates are connected end to end and fixed to the metal frame by the connectors. The second connecting component adopts an anti-detachment rope, which is fixed to the edge of the pressure-bearing cloth. Through the cooperation of the metal pressure plates, bolts and anti-detachment rope, a reliable connection between the pressure-bearing cloth and the metal frame can be ensured, thereby improving the safety and stability of the pressurization chamber.

[0016] (3) In this utility model, the edge of the pressure-bearing cloth is set with double-layer rolled edge. On the one hand, the double-layer rolled edge can wrap the anti-slip rope. On the other hand, the double-layer rolled edge is fixed to the metal frame by bolts. The double-layer pressure-bearing cloth setting can enhance the strength of the connection part and further ensure the reliability of the connection.

[0017] (4) In this utility model, the diameter of the anti-detachment rope is greater than the sum of the thickness of the sealing strip and twice the thickness of the pressure-bearing cloth, so as to avoid the pressure-bearing cloth pulling the anti-detachment rope under the metal pressure plate under a large pressure difference, causing damage to the pressure-bearing cloth.

[0018] (5) This utility model provides a pressurization chamber, including a pressure-bearing cloth and a metal frame. The pressure-bearing cloth and the metal frame are sealed together by the connection nodes as described above, so as to ensure the safety and stability of the pressurization chamber and improve the service life of the pressurization chamber.

[0019] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the connection node in an embodiment of this utility model; Figure 2 This is a cross-sectional structural diagram of the connecting node; Figure 3 This is a top view of the pressurized chamber; Among them, 1. Connecting components, 1.1 Connecting component one, 1.1.1 Metal pressure plate, 1.1.2 Connector, 1.2 Connecting component two, 2. Sealing components, 2.1 Sealing strip, 2.2 Sealing ring, 3. Pressure-bearing cloth, 4. Metal frame. Detailed Implementation

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] Example See Figure 1 This embodiment provides a connection node between a pressure-bearing fabric and a metal frame, including a connecting component 1 and a sealing component 2. The connecting component 1 includes a first connecting component 1.1 and a second connecting component 1.2. The first connecting component 1.1 is connected to the metal frame 4, and the pressure-bearing fabric 3 is disposed between the first connecting component 1.1 and the metal frame 4. The first connecting component 1.1 is used to fix the pressure-bearing fabric 3 to the metal frame 4. The second connecting component 1.2 is disposed on the pressure-bearing fabric 3, and the second connecting component 1.2 protrudes from the first connecting component 1.1. The second connecting component 1.2 is used to prevent the pressure-bearing fabric 3 from being pulled off the metal frame 4 under a large pressure difference. The sealing component 2 is disposed on the connecting component 1 and between the connecting component 1 and the metal frame 4, and is used to seal the connection node.

[0025] See Figures 1-3 The connecting component 1.1 includes multiple metal pressure plates 1.1.1 and connectors 1.1.2. The multiple metal pressure plates 1.1.1 are connected end to end and fixed to the metal frame 4 by the connectors 1.1.2.

[0026] Preferably, the metal pressure plate 1.1.1 includes a protrusion and a connecting portion, the connecting portion being located at both ends of the protrusion, the connecting portions of two adjacent metal pressure plates 1.1.1 overlapping, and the protrusions of two adjacent metal pressure plates 1.1.1 being arranged in opposite directions. Specifically, see... Figure 1As shown, the protrusion of metal pressure plate A faces upward, and the side away from the protrusion is used to press the pressure-bearing cloth 3. The protrusion of metal pressure plate B faces downward, and this protrusion is also used to press the pressure-bearing cloth 3. The connecting parts of metal pressure plate A and metal pressure plate B overlap. In this embodiment, the metal frame 4 is square, and correspondingly, four metal pressure plates 1.1.1 are provided. Metal pressure plates A and B are arranged perpendicularly. The number of metal pressure plates 1.1.1 and the angle between two adjacent metal pressure plates 1.1.1 can be adaptively adjusted according to actual operational needs.

[0027] In this embodiment, preferably, the connecting component 1.2 adopts an anti-detachment rope, which is fixed to the edge of the pressure-bearing cloth 3. The pressure-bearing cloth 3 has a double-layer rolled edge around its perimeter, and the anti-detachment rope is wrapped inside the double-layer rolled edge.

[0028] In this embodiment, see Figure 1 and Figure 2 The sealing assembly 2 includes a sealing strip 2.1 and a sealing ring 2.2. The sealing strip 2.1 is disposed between the pressure-bearing cloth 3 and the metal frame 4, and the sealing ring 2.2 is disposed between the connector 1.1.2 and the metal pressure plate 1.1.1.

[0029] In this embodiment, the diameter of the anti-detachment rope is greater than the sum of the thickness of the sealing strip 2.1 and twice the thickness of the pressure-bearing cloth 3, so as to avoid the pressure-bearing cloth 3 pulling the anti-detachment rope under the metal pressure plate 1.1.1 under a large pressure difference, which would cause damage to the pressure-bearing cloth 3.

[0030] In this embodiment, preferably, the connector 1.1.2 is a bolt. Correspondingly, the metal pressure plate 1.1.1 and the metal frame 4 are provided with threaded holes that match the bolts, and the sealing strip 2.1 and the pressure-bearing cloth 3 are provided with through holes that match the bolts. The position of the through hole on the pressure-bearing cloth 3 is a part with a double-layer rolled edge. The double-layer pressure-bearing cloth setting can enhance the strength of the connection part and further ensure the reliability of the connection.

[0031] During the actual installation, in the process of installing the pressure-bearing cloth 3 (with the rolled edges and anti-detachment rope already installed), first lay the sealing strip 2.1 on the metal frame 4. The through holes on the sealing strip 2.1 correspond one-to-one with the threaded holes on the metal frame 4. The material and structural design of the sealing strip 2.1 can adapt to different pressure and temperature conditions to ensure sealing performance. Then, lay the pressure-bearing cloth 3 on the sealing strip 2.1 and pull it straight outwards to ensure the center is flat. The through holes on the pressure-bearing cloth 3 also correspond one-to-one with the sealing strip 2.1. Then, use two metal pressure plates A to press the pressure-bearing cloth 3 against each other. On both sides (the anti-detachment rope protrudes from the metal pressure plate A and the sealing strip), bolts are passed through the sealing ring 2.2, metal pressure plate A, pressure-bearing cloth 3, sealing strip 2.1 and metal frame 4 in sequence, and the bolts are tightened; then, sealant is applied to the upper surface of the connection part on both sides of the metal pressure plate A to fill the surface unevenness to ensure sealing. Two metal pressure plates B are pressed on the metal pressure plate A (the connection part of the metal pressure plate A corresponds one-to-one with the connection part of the metal pressure plate B), and the other two sides of the pressure-bearing cloth 3 are pressed tightly. Then the bolts are tightened to connect the pressure-bearing cloth 3 and the metal frame 4.

[0032] This embodiment also provides a pressurization chamber, see [link / reference] Figure 3 It includes a pressure-bearing cloth 3 and a metal frame 4. The pressure-bearing cloth 3 and the metal frame 4 are sealed together by the connection nodes described above to ensure the safety and stability of the pressurization chamber and improve its service life.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connection node between a pressure-bearing fabric and a metal frame, characterized in that, It includes a connecting component (1) and a sealing component (2), wherein the connecting component (1) includes a first connecting component (1.1) and a second connecting component (1.2). The first connecting component (1.1) is connected to the metal frame (4), and the pressure-bearing cloth (3) is disposed between the first connecting component (1.1) and the metal frame (4); the second connecting component (1.2) is disposed on the pressure-bearing cloth (3), and the second connecting component (1.2) protrudes from the first connecting component (1.1); The sealing component (2) is disposed on the connecting component (1) and between the connecting component (1) and the metal frame (4).

2. The connection node between the pressure-bearing fabric and the metal frame according to claim 1, characterized in that, The first connecting component (1.1) includes multiple metal pressure plates (1.1.1) and connectors (1.1.2). The multiple metal pressure plates (1.1.1) are connected end to end and fixed to the metal frame (4) by the connectors (1.1.2).

3. The connection node between the pressure-bearing fabric and the metal frame according to claim 2, characterized in that, The metal pressure plate (1.1.1) includes a protrusion and a connecting part. The connecting part is located at both ends of the protrusion. The connecting parts of two adjacent metal pressure plates (1.1.1) overlap and the protrusions of two adjacent metal pressure plates (1.1.1) are arranged in opposite directions.

4. The connection node between the pressure-bearing fabric and the metal frame according to claim 2, characterized in that, The second connecting component (1.2) is equipped with an anti-detachment rope, which is fixed to the edge of the pressure-bearing cloth (3).

5. The connection node between the pressure-bearing fabric and the metal frame according to claim 4, characterized in that, The edge of the pressure-bearing cloth (3) is set with double-layer rolled edges, and the anti-detachment rope is wrapped inside the double-layer rolled edges.

6. The connection node between the pressure-bearing fabric and the metal frame according to claim 5, characterized in that, The sealing assembly (2) includes a sealing strip (2.1) and a sealing ring (2.2). The sealing strip (2.1) is disposed between the pressure-bearing cloth (3) and the metal frame (4), and the sealing ring (2.2) is disposed between the connector (1.1.2) and the metal pressure plate (1.1.1).

7. The connection node between the pressure-bearing fabric and the metal frame according to claim 6, characterized in that, The diameter of the anti-detachment rope is greater than the sum of the thickness of the sealing strip (2.1) and twice the thickness of the pressure-bearing cloth (3).

8. A connection node between a pressure-bearing fabric and a metal frame according to any one of claims 2-7, characterized in that, The connector (1.1.2) is a bolt.

9. A pressurization chamber, characterized in that, It includes a pressure-bearing cloth (3) and a metal frame (4), wherein the pressure-bearing cloth (3) and the metal frame (4) are sealed together by a connection node as described in any one of claims 1-8.