Isolation cabin door for vacuum magnetic suspension pipeline

Abstract

The invention discloses an isolation cabin door for a vacuum magnetic suspension pipeline, which is arranged between a transition cabin and a main cabin of the vacuum magnetic suspension pipeline and comprises a main shell, a driving body and at least one group of compensators. Wherein the main shell is provided with a penetrating through hole, and a cavity is formed in the main shell; the driving body is movably mounted in the cavity and comprises a connecting section and a sealing section which are connected with each other; the at least one group of compensator is arranged at one end of the main shell, and a first connecting rail is arranged in the compensator. Specifically, the isolation cabin door comprises two working modes, in the first mode, the sealing section moves to the through hole so as to isolate the transition cabin and the main cabin; and in the second mode, the connecting section moves to the through hole so as to communicate the transition cabin with the main cabin. By the adoption of the isolation cabin door, the communication and isolation states of the vacuum magnetic levitation pipeline are achieved through movement of the driving body, the isolation cabin door is simple in structure, and working conditions are flexible to adjust; in addition, the pipeline compensator can reduce the stress effect of the vacuum magnetic suspension pipeline in a large-temperature-difference environment, and the service life of the isolation cabin door is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum magnetic levitation pipelines, and in particular to an isolation cabin door for vacuum magnetic levitation pipelines. Background Art

[0002] At present, the high-speed maglev vacuum pipeline is a new technology in the emerging industry. The high-speed maglev train running at high speed in a vacuum pipeline with a vacuum environment can effectively reduce the running resistance of the high-speed maglev train. In the related art, the high-speed maglev pipeline includes a transition cabin and a main cabin. The transition cabin and the main cabin are high-speed maglev vacuum pipelines. An isolation cabin door is provided between the transition cabin and the main cabin. The function of the isolation cabin door is to realize the closure and connection between the transition cabin and the main cabin, so as to realize the transfer of the maglev train from the external atmospheric environment to the vacuum environment of the main cabin. However, the isolation cabin door is an important equipment of the high-speed maglev vacuum pipeline. The adjustment of the working condition of the isolation cabin door will directly affect the operation of the high-speed maglev train; in addition, the isolation cabin door provided between the transition cabin and the main cabin is susceptible to the stress of the large temperature difference environment. Therefore, the present invention aims to provide an isolation cabin door for a vacuum maglev pipeline, which has a simple structure, flexible working condition adjustment, and can adapt to the stress generated by the large temperature difference environment to improve the service life of the isolation cabin door. Summary of the invention

[0003] In order to overcome the technical problems described in the above-mentioned prior art, the purpose of the present invention is to provide an isolation cabin door for a vacuum magnetic levitation pipeline.

[0004] The present invention provides an isolation cabin door for a vacuum magnetic levitation pipeline, which is arranged between a transition cabin and a main cabin of the vacuum magnetic levitation pipeline. The isolation cabin door comprises: A main housing, which is provided with a through hole and has a cavity inside; A driving body, which is movably mounted in the cavity and comprises a connecting section and a sealing section connected to each other; At least one set of compensators, which is arranged at one end of the main housing and has a first connecting rail inside; The isolation cabin door includes two working modes: In the first mode, the sealing section moves to the through hole to isolate the transition cabin from the main cabin; In the second mode, the connecting section moves to the through hole to connect the transition cabin and the main cabin.

[0005] As a preferred technical solution, the compensator is a metal corrugated pipe compensator, which includes a metal corrugated body, both end surfaces of the metal corrugated body are provided with flanges, and a limit rod is movably installed between the flanges.

[0006] As a preferred technical solution, a first gap is provided between the first connecting rail and the rail of the transition cabin or the rail of the main cabin, and the first gap is 10-15 mm.

[0007] As a preferred technical solution, a guide groove is provided at least at the bottom of the main shell body, and a roller movable in the guide groove is provided at least at the bottom of the driving body.

[0008] As a preferred technical solution, the isolation cabin door also includes a driving motor and a first feeding mechanism drivingly connected to the driving motor, and an output end of the first feeding mechanism is connected to the driving vehicle to drive the driving body to perform linear reciprocating motion in the main shell.

[0009] As a preferred technical solution, the sealing section includes a support frame, and a second feeding mechanism arranged on one side of the support frame, the second feeding mechanism is transmission-connected to the drive motor, and a sealing plate is installed at the output end of the second feeding mechanism to realize the fitting and separation functions of the sealing plate relative to the transition cabin or the main cabin.

[0010] As a preferred technical solution, a second connecting rail capable of connecting with the magnetic levitation track is provided in the connecting section. When the isolation cabin door works in the first mode, a second gap is provided between the second connecting rail and the first connecting rail, and the second gap is 10-15 mm.

[0011] As a preferred technical solution, a sealing pad is provided on the surface of the sealing plate.

[0012] In summary, the present invention has the following technical effects: The present invention discloses an isolation cabin door for a vacuum maglev pipeline, which is arranged between the transition cabin and the main cabin of the vacuum maglev pipeline, and includes a main shell, a driving body and at least one group of compensators. Among them, the main shell is provided with a through hole and has a cavity inside; the driving body is movably installed in the cavity and includes a connected connecting section and a sealing section; at least one group of compensators is arranged at one end of the main shell and has a first connecting rail inside. Specifically, the isolation cabin door includes two working modes. In the first mode, the sealing section moves to the through hole to isolate the transition cabin and the main cabin; in the second mode, the connecting section moves to the through hole to connect the transition cabin and the main cabin. The above-mentioned isolation cabin door is adopted to realize the connection and isolation state of the vacuum maglev pipeline through the activity of the driving body. The isolation cabin door has a simple structure and flexible working condition adjustment; in addition, the pipeline compensator can reduce the stress effect of the vacuum maglev pipeline in a large temperature difference environment, and improve the service life of the isolation cabin door. Therefore, compared with the existing high-speed vacuum pipeline technology, the isolation cabin door for a vacuum maglev pipeline provided by the present invention has obvious technical advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of a first mode of an isolation cabin door for a vacuum magnetic levitation pipeline according to an embodiment of the present invention; Figure 2 2 is a schematic diagram of a second mode of an isolation cabin door for a vacuum magnetic levitation pipeline according to an embodiment of the present invention; Figure 3 It is a side view schematic diagram of an isolation cabin door for a vacuum magnetic levitation pipeline according to an embodiment of the present invention; The meanings of the reference numerals are as follows: Main shell, 11-guide groove; driving body, 21-connecting section, 211-second connecting rail, 22-sealing section, 221-support frame, 222-sealing plate, 23-roller; metal corrugated pipe compensator, 31-metal corrugated body, 32-flange; 4-driving motor, 41-first feeding mechanism, 42-second feeding mechanism. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. The present embodiment described herein is only for illustrative purposes and is not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to this embodiment without departing from the scope of protection of the present invention. In the description of the present invention, unless otherwise clearly specified and limited, the term "and / or" includes any and all combinations of one or more associated listed items. Unless otherwise specified or explained, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Further, in the description of the present invention, it should be understood that the directional words described in the present embodiment are described at the angles shown in the accompanying drawings and should not be understood as limiting the present embodiment. It should also be understood that in the context, when it is mentioned that an element or feature is connected to another element (one or more), it can not only be directly connected to the other (one or more) elements, but also indirectly connected to the other (one or more) elements through an intermediate element.

[0016] Before introducing the technical solution of the present invention, it is necessary to explain the creation background of the invention of the present invention. It is common that the high-speed maglev pipeline includes a transition cabin and a main cabin. The transition cabin and the main cabin are high-speed maglev vacuum pipelines. An isolation cabin door is provided between the transition cabin and the main cabin. The function of the isolation cabin door is to realize the closure and connection between the transition cabin and the main cabin, thereby realizing the transfer of the maglev train from the external atmospheric environment to the vacuum environment of the main cabin. However, the isolation cabin door is an important equipment of the high-speed maglev vacuum pipeline, and the adjustment of the working condition of the isolation cabin door will directly affect the operation of the high-speed maglev train; in addition, the isolation cabin door provided between the transition cabin and the main cabin is susceptible to the stress of the large temperature difference environment. To this end, the present invention aims to provide an isolation cabin door for a vacuum maglev pipeline.

[0017] See also Figure 1 and Figure 2 According to an exemplary embodiment of the present invention, there is provided an isolation cabin door for a vacuum magnetic levitation pipeline, which is arranged between the transition cabin and the main cabin of the vacuum magnetic levitation pipeline, and includes a main shell 1, a driving body 2, and at least one group of compensators. The main shell 1 is provided with a through hole and has a cavity inside. It should be understood that the through hole is a connecting window to realize the connection between the main shell 1 and the transition cabin and the main cabin; the driving body 2 is movably installed in the cavity and includes a connected connecting section 21 and a sealing section 22. It should be understood that the connecting section 21 and the sealing section 22 can be connected by a number of connecting rods, and the present invention does not specifically limit this; at least one group of compensators is arranged at one end of the main shell 1 and has a first connecting rail inside; specifically, the isolation cabin door includes two working modes. In the first mode, the sealing section 22 is moved to the through hole to isolate the transition cabin and the main cabin; in the second mode, the connecting section 21 is moved to the through hole to connect the transition cabin and the main cabin.

[0018] It should be noted that if Figure 3 As shown, in some other embodiments, compensators are provided at both ends of the main shell 1. The transition cabin and the main cabin of the vacuum maglev pipeline will expand and contract in a large temperature difference environment, resulting in a slight change in the length of the pipeline. If this change is not compensated in time, stress will be generated inside the pipeline, which will in turn affect the isolation cabin door and have an adverse effect on the stability and safety of the vacuum maglev pipeline system. By providing compensators at both ends of the main shell 1, the transition cabin and the main cabin can expand or contract freely when the temperature changes, so as to effectively reduce the impact of the above-mentioned stress on the isolation cabin door and improve the service life of the vacuum pipeline isolation cabin door.

[0019] Furthermore, in some embodiments, a first gap is provided between the first connecting rail and the track of the transition cabin or the track of the main cabin, and the first gap is 10-15 mm. Furthermore, a second connecting rail 211 capable of connecting with the magnetic levitation track is provided in the connecting section 21, and when the isolation cabin door works in the first mode, a second gap is provided between the second connecting rail 211 and the first connecting rail, and the second gap is 10-15 mm. The above-mentioned first gap and second gap are set to meet the needs of thermal expansion and contraction of the rails, and a rail gap is reserved at the rail joint for processing.

[0020] In some embodiments, see Figure 3 The compensator is a metal corrugated pipe compensator 3, which includes a metal corrugated body 31, and flanges 32 are provided on both ends of the metal corrugated body 31, and a limit rod is movably installed between the flanges 32. The metal corrugated pipe compensator 3 has good elasticity and can freely expand and contract within a certain range, thereby absorbing the thermal expansion and contraction effect of the pipeline caused by temperature changes, reducing stress concentration, and protecting the pipeline from damage. Among them, the metal corrugated body 31 can undergo elastic deformation when the pressure fluctuates through its unique corrugated structure design, thereby absorbing and compensating for the change in the length of the pipeline and maintaining the stability of the system. In addition, the metal corrugated pipe compensator 3 is easy to install and has a compact structure. The flanges 32 on both ends of the metal corrugated body 31 are used to connect the main shell 1 and the transition cabin or the main cabin. In addition, the metal corrugated pipe compensator 3 also has excellent high temperature performance and fatigue resistance, which enables it to work normally in a high temperature environment. The fatigue resistance ensures that the metal corrugated pipe compensator 3 is not prone to fatigue damage during long-term use, ensuring the safe operation of the train in the vacuum maglev pipeline.

[0021] See also Figure 1 and Figure 2 The main housing 1 and the driving body 2 will be described below: In some embodiments, the main housing 1 is provided with a guide groove 11 at least at the bottom, and the driving body 2 is provided with a roller 23 movable in the guide groove 11 at least at the bottom. Figure 1 and Figure 2 As shown, the bottom and top of the main shell 1 are both provided with guide grooves 11, and the bottom and top of the driving body 2 are both provided with rollers 23 that move in the guide grooves 11. The design of this motion guide mechanism enables the driving body 2 to smoothly switch between different working modes. Preferably, in some embodiments, the isolation cabin door also includes a driving motor 4, and a first feeding mechanism 41 that is transmission-connected to the driving motor 4, and the output end of the first feeding mechanism 41 is connected to the driving vehicle to drive the driving body 2 to reciprocate linearly in the main shell 1. As an optional embodiment, as Figure 1 and Figure 2 As shown, the drive motor 4 is arranged on one side of the main housing 1, and the first feeding mechanism 41 is specifically a ball screw mechanism. The drive motor 4 serves as a power source to provide it with rotational motion. The output end of the first feeding mechanism 41, namely the nut of the ball screw mechanism, is fixedly connected to the driving body 2. When the screw rotates, the nut moves along the spiral line to drive the driving body 2 to reciprocate linearly in the main housing 1.

[0022] In some embodiments, the sealing section 22 includes a support frame 221, and a second feeding mechanism 42 arranged on one side of the support frame 221, the second feeding mechanism 42 is connected to the driving motor 4, and a sealing plate 222 is installed at the output end of the second feeding mechanism 42 to realize the fitting and separation function of the sealing plate 222 relative to the transition cabin or the main cabin. As an optional embodiment, the support frame 221 is composed of a plurality of cross bars and vertical bars to serve as the main body of the sealing section 22, wherein the second feeding mechanism 42 can be a telescopic assembly formed by a plurality of telescopic cylinder structures, one end of the telescopic cylinder is connected to the support frame 221, and the other end of the telescopic cylinder is provided with a sealing plate 222, and the telescopic cylinder is provided with feeding power by the above-mentioned driving motor 4 to realize the fitting and separation function of the sealing plate 222 relative to the transition cabin or the main cabin. Preferably, in some embodiments, a sealing pad is provided on the surface of the sealing plate 222, so that when the sealing plate 222 is fitted relative to the transition cabin or the main cabin, the sealing pad can further ensure the sealing performance.

[0023] It can be seen that the working mode of this isolation cabin door is specifically: In the first mode, the first feeding mechanism 41 drives the sealing section 22 to move to the through hole, and the second feeding mechanism 42 drives the sealing plate 222 relative to the transition chamber or the main chamber to achieve a fitting function, so as to isolate the transition chamber and the main chamber, and evacuate the transition chamber and the main chamber separately.

[0024] In the second mode, the second feeding mechanism 42 drives the sealing plate 222 relative to the transition cabin or the main cabin to realize the separation function, and the first feeding mechanism 41 drives the connecting section 21 to move to the through hole to connect the transition cabin and the main cabin, and transfer the maglev train in the transition cabin to the main cabin.

[0025] In summary, the above-mentioned isolation cabin door is used to achieve the connection and isolation state of the vacuum magnetic levitation pipeline through the movement of the driving body. The isolation cabin door has a simple structure and flexible working condition adjustment. In addition, the pipeline compensator can reduce the stress effect of the vacuum magnetic levitation pipeline in a large temperature difference environment and improve the service life of the isolation cabin door. Therefore, compared with the existing high-speed vacuum pipeline technology, the isolation cabin door for vacuum magnetic levitation pipeline provided by the present invention has obvious technical advantages.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An isolation cabin door for a vacuum maglev pipeline, arranged between a transition cabin and a main cabin of a vacuum maglev pipeline, characterized in that: The isolation cabin door comprises: A main housing, which is provided with a through hole and has a cavity inside; A driving body, which is movably mounted in the cavity and comprises a connecting section and a sealing section connected to each other; At least one set of compensators, which is arranged at one end of the main housing and has a first connecting rail inside; The isolation cabin door includes two working modes: In the first mode, the sealing section moves to the through hole to isolate the transition cabin from the main cabin; In the second mode, the connecting section moves to the through hole to connect the transition cabin and the main cabin.

2. The isolation cabin door according to claim 1, characterized in that: The compensator is a metal corrugated pipe compensator, which includes a metal corrugated body. Both end surfaces of the metal corrugated body are provided with flanges, and a limit rod is movably installed between the flanges.

3. The isolation cabin door according to claim 1, characterized in that: A first gap is provided between the first connecting rail and the rail of the transition cabin or the rail of the main cabin, and the first gap is 10-15 mm.

4. The isolation cabin door according to claim 1, characterized in that: A guide groove is provided at least at the bottom of the main housing, and a roller movable in the guide groove is provided at least at the bottom of the driving body.

5. The isolation cabin door according to claim 1, characterized in that: The isolation cabin door also includes a driving motor and a first feeding mechanism drivingly connected to the driving motor, and an output end of the first feeding mechanism is connected to the driving vehicle to drive the driving body to perform linear reciprocating motion in the main shell.

6. The isolation cabin door according to claim 5, characterized in that: The sealing section includes a support frame and a second feeding mechanism arranged on one side of the support frame, the second feeding mechanism is transmission-connected to the driving motor, and a sealing plate is installed at the output end of the second feeding mechanism to realize the fitting and separation functions of the sealing plate relative to the transition cabin or the main cabin.

7. The isolation cabin door according to claim 1, characterized in that: A second connecting rail that can be connected to the magnetic levitation track is provided in the connecting section. When the isolation cabin door works in the first mode, a second gap is provided between the second connecting rail and the first connecting rail, and the second gap is 10-15 mm.

8. The isolation cabin door according to claim 1, characterized in that: A sealing pad is provided on the surface of the sealing plate.

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