Flexible connection node suitable for butt joint of pressurized cabins

Abstract

The utility model discloses a flexible connection joint suitable for butt joint of pressurized cabins, and relates to the field of pressurized buildings. The flexible connection node suitable for butt joint of the pressurized cabins comprises two butt joint flanges connected with each other and an annular rubber plate, the outer walls of the two ends of the rubber plate abut against and are connected to the inner walls of the two butt joint flanges respectively, and the two butt joint flanges are connected with each other through a plurality of pull rod assemblies. The pull rod assembly is configured to tension or loosen the two butt flanges in the direction close to each other. According to the flexible connection node suitable for butt joint of the pressurized cabins, the two butt joint flanges are connected through the pull rod assembly to serve as a framework, and the outer walls of the two ends of the rubber plate are connected to the inner walls of the two butt joint flanges correspondingly to form flexible sealing connection; the pull rod assembly is used for tensioning the two butt flanges to disperse and bear the tensile force borne by the rubber plate, it can be guaranteed that the flexible connection structure has the high structural strength, and meanwhile the flexible connection structure has the advantages of being simple in structure, high in assembling and disassembling efficiency, good in flexible connection sealing performance, low in manufacturing cost and long in service life.

Description

Technical Field

[0001] The present application relates to the field of pressurized buildings, and more particularly, to a flexible connection node suitable for the docking of pressurized cabins. Background Art

[0002] The low-pressure and low-oxygen environment in high-altitude areas leads to frequent occurrence of altitude sickness, which seriously damages the physical health of residents in high-altitude areas. Pressurized building complexes are one of the effective solutions to solve this problem. Due to manufacturing, transportation and other issues, pressurized building complexes are mostly assembled on-site with modular pressurized cabins manufactured independently. And the pressurized building complex needs to ensure good airtightness inside to achieve the purpose of indoor pressurization and oxygen supplementation. Therefore, it is required that the connection nodes of each cabin can not only adapt to the manufacturing and assembly errors of each docking cabin to ensure smooth docking, but also ensure good airtightness. If rigid connections are used between the cabins of the pressurized building complex, it not only requires higher overall machining accuracy of each cabin, but also makes on-site assembly very difficult, with high costs and long cycles. However, the existing flexible connection methods for pressurized building complexes have high costs, poor durability and weak load-bearing capacity.

[0003] Therefore, a flexible connection node for a pressurized building complex with good sealing performance, low assembly difficulty and low manufacturing cost is needed to meet the usage requirements. Summary of the Utility Model

[0004] The purpose of the present application is to provide a flexible connection node suitable for the docking of pressurized cabins, which has the advantages of simple structure, high structural strength, high loading and unloading efficiency, good soft connection airtightness, low manufacturing cost and long service life.

[0005] The present application is implemented as follows:

[0006] The present application provides a flexible connection node suitable for the docking of pressurized cabins, which includes two interconnected docking flanges and an annular rubber plate. The outer walls of both ends of the rubber plate are respectively pressed against and connected to the inner walls of the two docking flanges. The two docking flanges are interconnected by a plurality of tie rod assemblies, and the tie rod assemblies are configured to be able to tighten or loosen the two docking flanges in the direction of approaching each other.

[0007] In some alternative embodiments, the tie rod assemblies are configured to be able to move in the horizontal direction and / or rotate in the vertical plane to compensate for the assembly spacing between the two docking flanges in the horizontal direction and / or in the vertical direction.

[0008] In some alternative embodiments, the tie rod assembly includes two mounting seats, two core shafts, two rod end spherical plain bearings and a threaded sleeve. The two mounting seats are respectively connected to the two docking flanges. The two core shafts are respectively rotatably connected to the two mounting seats. One ends of the two rod end spherical plain bearings are respectively slidably sleeved on the two core shafts, and the other ends are respectively threadedly connected to both ends of the threaded sleeve.

[0009] In some alternative embodiments, at least one rubber plate guard is provided between the two docking flanges, and the rubber plate guard presses against the outer wall of the rubber plate.

[0010] In some alternative embodiments, an annular rubber plate seat plate is provided on the inner wall of at least one docking flange, and the outer wall of the corresponding end of the rubber plate presses against and is connected to the rubber plate seat plate.

[0011] In some alternative embodiments, it further includes at least one rubber plate pressing plate connected to the docking flange, and the rubber plate pressing plate is used to press and fix the inner wall of one end of the rubber plate to the corresponding docking flange.

[0012] In some alternative embodiments, the outer wall of the rubber plate and the inner wall of the docking flange are hermetically connected through a concave-convex structure.

[0013] In some alternative embodiments, the concave-convex structure includes at least one bead, at least one first card slot is provided on the outer wall of the rubber plate pressing plate, and a second card slot corresponding to the first card slot is provided on the inner wall of the docking flange; the bead is clamped in the first card slot and the corresponding second card slot to press the rubber plate into the second card slot.

[0014] In some alternative embodiments, at least one annular rib is provided on the outer wall of the rubber plate, and a second card slot corresponding to the annular rib is provided on the inner wall of the docking flange for clamping connection.

[0015] In some alternative embodiments, an annular shroud is connected to one end of each docking flange away from the other docking flange.

[0016] The beneficial effects of the present application are as follows: The soft connection node applicable to the docking of the pressurized cabin body provided by the present application includes two interconnected docking flanges and an annular rubber plate. The outer walls of both ends of the rubber plate press against and are connected to the inner walls of the two docking flanges respectively. The two docking flanges are interconnected through a plurality of tie rod assemblies, and the tie rod assemblies are configured to be able to tighten or loosen the two docking flanges in the direction of approaching each other. The soft connection node applicable to the docking of the pressurized cabin body provided by the present application uses the tie rod assemblies to connect the two docking flanges to each other as a framework, connects the outer walls of both ends of the rubber plate to the inner walls of the two docking flanges respectively to form a flexible sealing connection, and uses the tie rod assemblies to tighten the two docking flanges to disperse and bear the tension received by the rubber plate, having the advantages of simple structure, high structural strength, high loading and unloading efficiency, good soft connection sealing performance, low manufacturing cost, and long service life. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of a flexible connection node applicable to the docking of a pressurized cabin body provided by an embodiment of the present application;

[0019] Figure 2 Partial cross-sectional structural schematic diagram of a flexible connection node applicable to the docking of a pressurized cabin body provided by an embodiment of the present application;

[0020] Figure 3 For Figure 2 Partial enlarged view at A in;

[0021] Figure 4 Structural schematic diagram of a tie rod assembly in a flexible connection node applicable to the docking of a pressurized cabin body provided by an embodiment of the present application;

[0022] Figure 5 For along Figure 4 Cross-sectional structural schematic diagram along the B-B section line in;

[0023] Figure 6 Partial cross-sectional structural schematic diagram of a flexible connection node applicable to the docking of a pressurized cabin body provided by another embodiment of the present application;

[0024] Figure 7 For Figure 6 Partial enlarged view at C in.

[0025] In the figure: 100, docking flange; 110, rubber plate pressing plate; 111, pressing plate unit; 120, rubber plate; 121, ring rib; 130, rubber plate guard plate; 140, rubber plate seat plate; 150, screw; 160, pressing strip; 170, first card slot; 180, second card slot; 190, enclosing plate; 200, tie rod assembly; 210, mounting seat; 220, rod end spherical plain bearing; 230, threaded sleeve; 240, core shaft; 250, retaining ring. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Generally, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0028] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0029] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0030] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0031] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0032] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0033] The features and performance of the soft connection node applicable to the docking of pressurized cabins of the present application will be further described in detail below in conjunction with the embodiments.

[0034] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 shown, the embodiment of the present application provides a soft connection node applicable to the docking of pressurized cabins, which includes two docking flanges 100, two annular rubber plate pressing plates 110, an annular rubber plate 120 and eight tie rod assemblies 200;

[0035] Among them, the docking flange 100 is a rectangular frame structure formed by welding four square pipes. One end of the two docking flanges 100 is aligned, and the other ends are respectively connected with annular gusset plates 190. The gusset plates 190 and the docking flanges 100 are arranged coaxially. The gusset plates 190 of the two docking flanges 100 are respectively used to connect the bulkheads of the two pressurized cabins; annular rubber plate seat plates 140 extending along the circumferences are respectively convexly formed on the inner walls of the two docking flanges 100. Each rubber plate seat plate 140 is provided with a second card slot 180 extending along the circumference and threaded holes arranged at intervals. The outer walls of both ends of the rubber plate 120 respectively press against the inner walls of the two rubber plate seat plates 140. Two rubber plate pressing plates 110 respectively press against the inner walls of both ends of the rubber plate 120 to press and fix the outer walls of both ends of the rubber plate 120 on the two rubber plate seat plates 140. Through holes corresponding to the threaded holes are provided on the rubber plate pressing plates 110 for the screws 150 to pass through. The two rubber plate pressing plates 110 are respectively connected to the two corresponding rubber plate seat plates 140 through the screws 150 arranged at intervals. Each rubber plate pressing plate 110 is composed of twelve pressing plate units 111 arranged in sequence along the circumference of the corresponding docking flange 100 and with the ends pressing against each other in sequence. Each outer wall of the rubber plate pressing plate 110 is provided with twelve second card slots 180 corresponding to the first card slots 170. Each outer wall of the twelve pressing plate units 111 is provided with a second card slot 180. One sides of twelve pressure bars 160 are respectively clamped in the twelve second card slots 180. The other sides of the twelve pressure bars 160 are respectively clamped in the corresponding first card slots 170. The twelve pressure bars 160 are used to press and fix one end inner wall of the rubber plate 120 in the second card slot 180; eight rubber plate guard plates 130 are also arranged at intervals along the circumference between the two docking flanges 100. The inner wall of each rubber plate guard plate 130 presses against the outer wall of the rubber plate 120. Both ends of each rubber plate guard plate 130 respectively press against the two rubber plate seat plates 140. In this embodiment, the rubber plate pressing plate 110 is a ultra-high molecular weight polyethylene plate.

[0036] Eight tie rod assemblies 200 are arranged at intervals along the circumference of the docking flange 100. Two tie rod assemblies 200 are respectively arranged on the four sides of the docking flange 100; each tie rod assembly 200 includes two mounting seats 210, two rod end spherical plain bearings 220 and a threaded sleeve 230 with internal threads respectively arranged on the inner walls of both ends. The two mounting seats 210 are respectively connected to the outer walls of the two docking flanges 100. One ends of the two rod end spherical plain bearings 220 are respectively connected with a core shaft 240. The other ends are respectively connected to both ends of the threaded sleeve 230 through external threads. The two ends of the core shaft 240 connected by the two rod end spherical plain bearings 220 respectively rotatably pass through both sides of the two mounting seats 210. Each mounting seat 210 is connected with a retaining ring 250 sleeved on both ends of the corresponding core shaft 240.

[0037] When assembling the flexible connection node suitable for the docking of pressurized cabins provided in the embodiments of the present application, first, the two docking flanges 100 are welded to the cabin walls of the two pressurized cabins through the surrounding plates 190 provided at one end. Subsequently, the two pressurized cabins are transported to the site for assembly. During assembly, the ends of the docking flanges 100 connecting the two pressurized cabins are aligned and then brought closer to each other. Then, each rubber plate guard 130 is respectively clamped between the rubber plate seat plates 140 of the two docking flanges 100, and each rubber plate guard 130 is evenly spaced along the circumferential direction of the docking flange 100. Next, the rubber plate 120 is passed through the two docking flanges 100 and the outer walls of both ends of the rubber plate 120 are respectively attached to the two rubber plate guards 130. Subsequently, one side of each of the twelve pressure strips 160 is respectively clamped in the second card slots 180 on the outer walls of the respective pressing plate units 111 in the rubber plate pressing plate 110. Then, the twelve pressure strips 160 are arranged in sequence along the circumferential direction and their ends are sequentially pressed against each other to form the rubber plate pressing plate 110 that fits against the inner wall of the rubber plate 120. The screws 150 are sequentially passed through the through holes on the respective pressing plate units 111 of the rubber plate pressing plate 110 and the threaded holes on the rubber plate seat plate 140 for connection and fixation, so that the two rubber plate pressing plates 110 are respectively connected to the two rubber plate seat plates 140 and the two ends of the rubber plate 120 are pressed and fixed. And the pressure strips 160 in the twelve second card slots 180 on the outer wall of each rubber plate pressing plate 110 press one end outer wall of the rubber plate 120 against the first card slot 170 on the inner wall of the rubber plate seat plate 140 for sealing. Finally, the two ends of the threaded sleeve 230 in the tie rod assembly 200 connected to the outer walls of the two docking flanges 100 are respectively threadedly connected and tightened with the rod end spherical plain bearings 220 hinged to the two mounting seats 210, thereby docking and tightening the docking flanges 100 of the two pressurized cabins to complete the connection.

[0038] When the flexible connection node suitable for the docking of pressurized cabins provided in the embodiments of the present application connects two pressurized cabins, it can compensate for the horizontal error of the two pressurized cabins by adjusting the position of the rod end spherical plain bearing 220 of the tie rod assembly 200 on the core shaft 240, and compensate for the vertical error of the two pressurized cabins by the rotation of the rod end spherical plain bearing 220 along the core shaft 240, so that the docking surfaces of the respective pressurized cabins do not need to be strictly aligned, greatly reducing the requirements for the manufacturing accuracy of the pressurized cabins and the assembly difficulty. During the subsequent use of the pressurized cabins, when there are small relative displacements between the respective pressurized cabins, the tie rod assembly 200 can also be used for adaptive adjustment; pre-tightening the rod end spherical plain bearing 220 and the threaded sleeve 230 can make the whole tie rod assembly 200 be subjected to tensile force, ensuring that the rubber plate 120 connecting the two pressurized cabins is always not subjected to tensile force during the subsequent use process when the force changes, ensuring the reliable sealing of the flexible connection node, and at the same time increasing the service life of the rubber plate 120.

[0039] The soft connection node applicable to the docking of the pressurized cabin body provided by the embodiment of the present application can respectively press and fix both ends of the rubber plate 120 on the rubber plate seat plates 140 on the inner walls of the two docking flanges 100 by using two rubber plate pressing plates 110, and can use the rubber plate 120 to realize the soft connection seal of the two docking flanges 100, and cooperate with the tie rod assembly 200 to compensate for the horizontal and vertical misalignment amounts during the docking of the pressurized cabin bodies connected by the two docking flanges 100. It can not only adapt to the docking of pressurized cabin bodies with large manufacturing errors, but also ensure the reliable seal between the pressurized cabin bodies, and has the advantages of strong applicability, low manufacturing cost, and short construction and assembly cycle.

[0040] A rubber plate guard plate 130 is arranged between the two docking flanges 100 to press and protect the rubber plate 120, preventing the rubber plate guard plate 130 from being damaged from the outside. Moreover, after the internal pressure of the pressurized building is increased, the rubber plate 120 will bulge under the action of the internal positive pressure of the building. Excessive pressure will damage the rubber plate 120. The rubber plate guard plate 130 can be closely attached to the rubber plate guard plate 130 after the rubber plate 120 is subjected to the internal positive pressure and transmit the force to the rubber plate guard plate 130, ensuring that the rubber plate 120 itself is not stressed, thereby effectively increasing the service life of the rubber plate 120.

[0041] A first clamping groove 170 is arranged on the inner wall of the rubber plate seat plate 140 to cooperate with a second clamping groove 180 arranged on the outer wall of the rubber plate pressing plate 110 to accommodate the pressing strip 160, and using the pressing strip 160 to press and fix the rubber plate 120 in the first clamping groove 170 can further improve the sealing performance of the rubber plate 120; in addition, by pre-tightening the tie rod assembly 200 connecting the two docking flanges 100, it can be ensured that during the use process, when the pressurized cabin body is affected by the environment, the rubber plate 120 is not damaged by the tensile force; by pre-welding and fixing the two docking flanges 100 to the pressurized cabin body in advance, and the remaining components adopt a disassembly and assembly scheme, and all are small-size and lightweight components, the on-site assembly is simple, the assembly efficiency is high, and subsequent maintenance only requires disassembling and replacing the rubber plate 120, with simple operation and low maintenance cost.

[0042] In other alternative embodiments, the number of the tie rod assemblies 200 can also be two, three, four or more than four.

[0043] In other alternative embodiments, each rubber plate pressing plate 110 can also be composed of two, three, four or more than four pressing plate units 111.

[0044] In other alternative embodiments, two, three, four or more than four rubber plate guard plates 130 can also be arranged between the two docking flanges 100.

[0045] In other alternative embodiments, the rod end spherical plain bearing 220 of the tie rod assembly 200 and the core shaft 240 can also use a ball hinge connection.

[0046] In other optional embodiments, split pins can also be used to fix both ends of the mandrel 240.

[0047] In other optional embodiments, only two annular pressure strips 160 can be provided, and each pressure strip 160 is respectively clamped with a first card slot 170 corresponding to twelve second card slots 180 provided on the outer wall of the rubber plate pressing plate 110.

[0048] In other optional embodiments, the pressure strip 160 and the first card slot 170 can also be cancelled. As Figure 6 and Figure 7 shown, a second card slot 180 extending along its circumferential direction is provided on the inner wall of the rubber plate seat plate 140, and a ring rib 121 clamped in the corresponding second card slot 180 is convexly provided on the outer wall of the rubber plate 120. The position of the rubber plate 120 is fixed by clamping the ring rib 121 on the outer wall of the rubber plate 120 with the second card slot 180 on the inner wall of the rubber plate seat plate 140. The area and height of the ring rib 121 on the rubber plate 120 are larger than the area and depth of the second card slot 180 on the rubber plate seat plate 140.

[0049] The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

Claims

1. A flexible connection node applicable to the docking of a pressurized cabin, characterized in that It includes two interconnected docking flanges and an annular rubber plate. The outer walls of both ends of the rubber plate are respectively pressed against and connected to the inner walls of the two docking flanges. The two docking flanges are interconnected by a plurality of tie rod assemblies, and the tie rod assemblies are configured to tighten or loosen the two docking flanges in the direction of approaching each other.

2. The soft connection node applicable to the docking of a pressurized cabin according to claim 1, characterized in that, The tie rod assemblies are configured to be movable in the horizontal direction and / or rotatable in the vertical plane to compensate for the assembly spacing between the two docking flanges in the horizontal direction and / or in the vertical direction.

3. The soft connection node applicable to the docking of a pressurized cabin according to claim 2, characterized in that, The tie rod assemblies include two mounting seats, two core shafts, two rod end spherical bearings and a threaded sleeve. The two mounting seats are respectively connected to the two docking flanges. The two core shafts are respectively rotatably connected to the two mounting seats. One ends of the two rod end spherical bearings are respectively slidably sleeved on the two core shafts, and the other ends are respectively threadedly connected to both ends of the threaded sleeve.

4. The soft connection node applicable to the docking of a pressurized cabin according to claim 1, characterized in that, At least one rubber plate guard is provided between the two docking flanges, and the rubber plate guard presses against the outer wall of the rubber plate.

5. The soft connection node applicable to the docking of a pressurized cabin according to claim 1, characterized in that, An annular rubber plate seat plate is provided on the inner wall of at least one of the docking flanges, and the corresponding end outer wall of the rubber plate is pressed against and connected to the rubber plate seat plate.

6. The soft connection node applicable to the docking of a pressurized cabin according to claim 1, wherein It further includes at least one rubber plate pressing plate connected to the docking flange, and the rubber plate pressing plate is used to press and fix one end inner wall of the rubber plate to the corresponding docking flange.

7. The soft connection node applicable to the docking of a pressurized cabin according to claim 6, characterized in that, The outer wall of the rubber plate and the inner wall of the docking flange are hermetically connected through a concavo-convex structure.

8. The soft connection node applicable to the docking of a pressurized cabin according to claim 7, characterized in that, The concavo-convex structure includes at least one pressing strip. At least one first card slot is provided on the outer wall of the rubber plate pressing plate, and a second card slot corresponding to the first card slot is provided on the inner wall of the docking flange; the pressing strip is clamped in the first card slot and the corresponding second card slot to press the rubber plate into the second card slot.

9. The soft connection node applicable to the docking of a pressurized cabin according to any one of claims 1 to 6, characterized in that, At least one ring rib is provided on the outer wall of the rubber plate, and a second card slot corresponding to the ring rib is provided on the inner wall of the docking flange for clamping connection.

10. The soft connection node applicable to the docking of a pressurized cabin according to claim 1, characterized in that, An annular shroud is connected to one end of each docking flange away from the other docking flange.

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