Inflatable outer windshield

Abstract

The present invention relates to an inflatable outer windshield, which is used to connect the body of a rail transit vehicle, and includes: an inflatable capsule, a connecting profile, an inflation system, and an exhaust system; the inflatable capsule is an integrated wave-countering structure, and the two ends are screwed to the connecting profile, and the connecting profile is fixedly connected to the vehicle bodies on both sides respectively, and the middle part of the inflatable capsule is a wave-shaped structure. This structure effectively ensures the stability of the gas pressure inside the inflatable capsule and improves the air tightness between the vehicle bodies; the wave-countering structure enables it to have sufficient compression and stretching, effectively extending the overall life of the inflatable capsule. The inflation port and the exhaust port correspond to and are arranged in an alternating manner, and can be quickly inflated and exhausted. A frame is used to shape the waveform to improve the aesthetics and prevent the occurrence of jitter or resonance during the operation of the rail transit vehicle. The inflatable capsule has a simple structure, is easy to use and operate, and is easy to repair, which greatly reduces the failure rate of the outer windshield.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transportation, and in particular relates to an inflatable outer windshield structure. Background Art

[0002] In the prior art, the rail transit vehicle bodies are connected to each other through windshields. The existing outer windshield adopts a multi-section U-shaped capsule outer windshield. Screw installation fixing holes are opened on both sides of the capsule. The outer profile positions the outer side of the capsule, and the inner side of the capsule is pressed by installing a pressure strip inside. The three are fastened together by screws to achieve the installation and positioning of the capsule. However, such capsule outer windshield has the following problems: 1. Due to the unique segmented structure of the capsule outer windshield, it does not have the functions of airtightness and rainproof; 2. When the rail transit vehicle passes through a non-straight section or a section with a height difference, the two outer windshields will squeeze each other, and the squeezing force is transmitted to the vicinity of the capsule screw mounting hole, causing the capsule to be subjected to a large shear force, causing tearing at the mounting hole, resulting in functional failure of the outer windshield; 3. In order to achieve a firm and stable installation of the capsule and the profile, a pressure strip is used inside the structure. During the assembly process, the pressure strip is located on the inner side of the capsule, which makes the assembly process more complicated, especially when installing the middle section of the capsule, which will increase the difficulty of installation; 4. The U-shaped capsule structure has a constant stretching and compression amount without reserved stretching and compression amount, which will cause a gap between the two capsules when the vehicle body passes through a non-straight section or a section with a height difference during operation, thereby causing the sealing to deteriorate. Summary of the invention

[0003] The purpose of the present invention is to provide an inflatable outer windshield to better solve the technical problems existing in the prior art that the segmented capsule has no airtight and rainproof functions, the physical properties of the capsule are reduced after the installation and fixing holes are opened, the assembly process of the pressure strip on the inner side of the capsule is relatively complicated, and the U-shaped capsule has no reserved stretching and compression amount, resulting in poor sealing.

[0004] In order to solve the above problems, the present invention relates to an inflatable outer windshield for connecting to the body of a rail transit vehicle, comprising: an inflatable capsule, a connecting profile, an inflation system, and an exhaust system; the inflatable capsule is an integrated wave-proof structure, the two ends of which are screwed to the connecting profile, the connecting profile is respectively fixedly connected to the vehicle bodies on both sides, and the middle part of the inflatable capsule is a corrugated structure.

[0005] Furthermore, the inflatable capsule has a corrugated structure retaining frame in the middle.

[0006] Furthermore, the retaining frame is a profile or a wire.

[0007] Furthermore, the inflation system and the exhaust system have an inflation port and an exhaust port connecting the outside and the inflatable capsule.

[0008] Furthermore, the inflation port and the exhaust port are arranged on both side walls of the inflatable capsule in a one-to-one correspondence.

[0009] Furthermore, the inflation port and the exhaust port are arranged alternately on the two side walls of the inflatable capsule.

[0010] Furthermore, it also includes position sensors arranged at the upper left end, upper right end, lower left end and lower right end of the inflatable capsule, and pressure sensors arranged at the upper end, lower end, left end and lower right end of the inflatable capsule.

[0011] Furthermore, the position sensors are located on the inner and outer sides of the inflatable capsule, and the number of the position sensors is not less than 2 and is spaced apart.

[0012] Furthermore, the pressure sensors are arranged at intervals of not less than 2 spaces inside the inflatable capsule.

[0013] The present invention also relates to another inflatable outer windshield, which has an intermediate connecting profile or an intermediate quick release device; the intermediate connecting profile or the intermediate quick release device is located between the interconnected inflatable capsules, and the inflatable capsules are connected or quickly released through the intermediate connecting profile or the intermediate quick release device.

[0014] The beneficial effects of the present invention are as follows: 1. The inflatable outer windshield structure with an inflation system and an exhaust system can effectively ensure the stability of the gas pressure inside the inflatable capsule while effectively improving the airtightness between the vehicle body and the vehicle body. 2. The counter-wave structure of the inflatable capsule enables it to have sufficient compression and extension during inflation and deflation, thereby effectively extending the overall life of the inflatable capsule. 3. The inflation port and the exhaust port of the inflatable capsule are arranged one by one on the two side walls of the inflatable capsule, and the inflation port and the exhaust port are arranged in an alternating manner on the two side walls of the inflatable capsule, so that the inflation and exhaust performance are stable and reliable, and rapid inflation and exhaust can be achieved. 4. By using a frame between the inflatable capsule wave structure to shape the wave shape, the aesthetics is improved, and the generation of jitter or resonance during the operation of the rail transit vehicle is prevented. 5. The inflatable capsule of this structure has a simple structure, is easy to use and operate, and is easy to maintain, which greatly reduces the failure rate of the outer windshield. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] Figure 1 It is a schematic diagram of the structure of the inflatable outer windshield of the present invention in its original state;

[0017] Figure 2 It is a schematic structural diagram of the inflatable outer windshield of the present invention in an inflated state;

[0018] Figure 3 It is a schematic diagram of the positions of the inflatable capsule position sensor and the pressure sensor of the present invention;

[0019] Figure 4 It is a schematic diagram of the positions of the inflation port and the exhaust port of the inflatable capsule of the present invention;

[0020] Figure 5 is a schematic diagram of the structure of the second inflatable outer windshield of the present invention in its original state;

[0021] Figure 6 It is a schematic diagram of the original state structure of the third inflatable outer windshield of the present invention.

[0022] In the figure:

[0023] Inflatable capsule 100, connecting profile 200, position sensor 300, first position sensor 301,

[0024] The second position sensor 302, the third position sensor 303, the pressure sensor 400,

[0025] The air filling port is 500 and the air exhaust port is 600. DETAILED DESCRIPTION

[0026] Discussed below Figures 1 to 6 The various embodiments used to describe the principles of the present invention in this patent document are for illustration only and should not be construed as limiting the scope of the invention in any way. Those skilled in the art will appreciate that the principles of the present invention can be implemented in any suitable inflatable outer windshield. The terms used to describe the various embodiments are exemplary. It should be understood that these are provided only to aid in understanding this specification, and their use and definitions do not limit the scope of the invention in any way. The use of the terms first, second, etc. to distinguish objects with the same set of terms is not intended to indicate a temporal order in any way unless otherwise expressly stated. A group is defined as a non-empty group containing at least one element.

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. It should be understood that the exemplary embodiments described herein should be considered only as descriptive and not for limiting purposes. The description of the features or aspects in each exemplary embodiment should generally be considered to be applicable to similar features or aspects in other exemplary embodiments.

[0028] Example 1

[0029] like Figure 1 , Figure 2 An inflatable outer windshield according to an exemplary embodiment of the present invention is shown, which is used to connect the body of a rail transit vehicle, including: an inflatable capsule 100, a connecting profile 200, an inflation system, and an exhaust system. The inflatable capsule 100 is an integrated wave-proof structure, and its two ends are screwed to the connecting profile 200, and the connecting profile 200 is fixedly connected to the vehicle bodies on both sides respectively. The middle part of the inflatable capsule 100 is a corrugated structure; the inflation system is used to inflate the inflatable capsule 100, and the exhaust system is used to exhaust the inflatable capsule 100, and the inflation system and the exhaust system are connected to the inflatable capsule 100 through an airway.

[0030] The inflatable capsule 100 can be a single-layer structure or a multi-layer structure. The inflatable capsule 100 is usually made of EPDM rubber, and its structure is a single-layer EPDM rubber structure, or it can be a multi-layer structure with a reinforcement layer inside. The inflatable capsule 100 can flexibly select a structural form according to different use environments and regions.

[0031] The inflatable outer windshield is installed between the body and the body of the rail transit vehicle. The external inflation system and the exhaust system are respectively connected to the inflatable capsule 100 of the inflatable outer windshield. Both sides of the inflatable capsule 100 are provided with an inflation port 500 of the inflation system and an exhaust port 600 of the exhaust system. The inflation port 500 and the exhaust port 600 correspond one to one on the peripheral walls on both sides of the inflatable capsule 100, that is, one inflation port 500 faces one exhaust port 600, so as to be used for point-to-point inflation and exhaust, which is beneficial to increase the inflation and exhaust speeds of the inflation port 500 and the exhaust port 600, and at the same time can balance the inflation and exhaust speeds inside the inflatable capsule 100.

[0032] The additional inflatable system inflatable ports 500 and exhaust ports 600 of the exhaust system are arranged alternately on the circumferential walls on both sides of the inflatable capsule 100. At the first point where the inflatable ports 500 and the exhaust ports 600 are arranged, the inflatable capsule 100 side connected to the first end vehicle body is set as the inflatable port 500, and the inflatable capsule 100 side connected to the second end vehicle body is set as the exhaust port 600; at the second point where the inflatable ports 500 and the exhaust ports 600 are arranged, the inflatable capsule 100 side connected to the first end vehicle body is set as the exhaust port 600, and the inflatable capsule 100 side connected to the second end vehicle body is set as the inflatable port 500; this is repeated until the inflatable ports 500 and the exhaust ports 600 are evenly spaced on the circumferential walls on both sides of the inflatable capsule 100. Such staggered arrangement of the inflation port 500 and the exhaust port 600 can achieve balanced internal pressure of the inflatable capsule 100 when inflating or exhausting. Since the distance between the two sides of the inflatable capsule 100 is long, it is difficult to quickly adjust the internal pressure of the inflatable capsule 100 to a reasonable range by only relying on single-sided inflation or single-sided exhaust.

[0033] The inflatable outer windshield has a frame that maintains the corrugated structure in the middle of the inflatable capsule 100. By using a frame between the corrugated structures of the inflatable capsule 100 to shape the waveform, the inflatable capsule 100 can maintain strong structural stability after inflation or exhaust, effectively prevent deformation, and maintain the visual beauty of the waveform. At the same time, the use of the frame can improve the rigidity of the overall inflatable outer windshield, effectively prevent the inflatable outer windshield from shaking or resonating during the operation of the rail transit vehicle, thereby reducing the overall sound insulation effect of the inflatable outer windshield. The inflatable capsule is also inevitably at risk of being torn and damaged, resulting in functional failure. The frame can adopt a profile structure or a wire structure to achieve the beauty of the waveform.

[0034] The inflatable outer windshield also includes position sensors 300 arranged at the upper left end, upper right end, lower left end and lower right end of the inflatable capsule 100, and pressure sensors 400 arranged at the upper end, lower end, left end and right end of the inflatable capsule 100.

[0035] The position sensors 300 are located on the inner and outer sides of the inflatable capsule 100, with a number of not less than 2 spaced intervals, and are used to detect the distance between the vehicle body walls connecting the two sides of the inflatable capsule 100; the pressure sensors 400 are located on the inner side of the inflatable capsule 100, with a number of not less than 2 spaced intervals, and are used to detect the gas pressure value in the inner cavity of the inflatable capsule 100.

[0036] The position sensor 300 includes: a first position sensor 301, a second position sensor 302 and a third position sensor 303. The first position sensor 301 is located inside the inflatable capsule 100, and the second position sensor 302 and the third position sensor 303 are located on the first and second outer sides of the inflatable capsule 100 respectively.

[0037] The first position sensor 301 is respectively located at the upper left end, upper right end, lower left end and lower right end of the inflatable capsule 100 connecting the vehicle body walls on both sides; the second position sensor 302 is located at the first outer side of the outermost edge of the inflatable capsule 100 connecting the vehicle body walls on both sides, and is spatially spaced 200 mm from the first position sensor 301; the third position sensor 303 is located at the second outer side of the innermost edge of the inflatable capsule 100 connecting the vehicle body walls on both sides, and is spatially spaced 200 mm from the first position sensor 301.

[0038] The pressure sensors 400 are located at the upper, lower, left and right ends of the peripheral wall of the inflatable capsule 100 connected to the vehicle bodies on both sides, and each end has no less than 2 pressure sensors 400, of which 3 are in total, and the spatial positions of the pressure sensors 400 are spaced 350 mm to 400 mm apart.

[0039] like Figure 3 , Figure 4 The present invention shows a schematic diagram of the positions of a position sensor 300, a pressure sensor 400, an inflation port 500 and an exhaust port 600 of an inflatable outer windshield according to an exemplary embodiment of the present invention. The position sensor 300 is used to detect the distance between the peripheral walls of the inflatable capsule 100 connected to the vehicle bodies on both sides in real time. In order to improve the position detection accuracy, three sensors, namely a first position sensor 301, a second position sensor 302 and a third position sensor 303, are arranged at the upper left end, the upper right end, the lower left end and the lower right end of the inflatable capsule 100 connected to the vehicle bodies on both sides, respectively. The first position sensor 301 is located on the inner side of the inflatable capsule 100, and detects the distance change state of the inflatable capsule 100 connecting the two sides of the vehicle body in real time when it is stretched or compressed. The second position sensor 302 and the third position sensor 303 are respectively located on the first outer side and the second outer side of the inflatable capsule 100, and detects the distance change state between the vehicle bodies on both sides of the inflatable capsule 100 when it is stretched or compressed. The second position sensor 302 located at the first outer side of the outermost edge of the inflatable capsule 100 is spaced 200 mm from the first position sensor 301, and the third position sensor 303 located at the second outer side of the innermost edge of the inflatable capsule 100 is spaced 200 mm from the first position sensor 301. The first position sensor 301, the second position sensor 302 and the third position sensor 303 are equidistantly spaced in order to more accurately detect the distance value of the inflatable capsule 100 between the two vehicle bodies.

[0040] The pressure sensor 400 for real-time detection of the gas pressure inside the inflatable capsule 100 is respectively arranged at the upper end, lower end, left end and right end of the peripheral wall of the inflatable capsule 100 connected to the vehicle bodies on both sides, in order to accurately feedback the pressure inside the inflatable capsule 100 under various operating conditions of the vehicle body. The gas pressure inside the inflatable capsule 100 changes when it is subjected to tension or compression. The gas pressure change is specifically manifested as a local pressure increase or a local pressure decrease in the inner cavity of the inflatable capsule 100. In order to improve the accuracy of gas pressure detection and accurately feedback the gas pressure value inside the inflatable capsule 100, the pressure sensors 400 located in each end are arranged at a spatial interval of 350mm to 400mm, and no less than 2 pressure sensors 400 are arranged at each end, and preferably 3 pressure sensors 400 are used.

[0041] The inflatable capsule 100 has a control system outside to control the inflation system and the exhaust system to inflate and exhaust the inflatable capsule 100. When the rail transit vehicle is in a normal driving state, the position of the inflatable capsule 100 remains constant. The position sensors 300 are divided into four groups and are respectively located at the upper left end, upper right end, lower left end and lower right end of the inflatable capsule 100. Each group is provided with a first position sensor 301, a second position sensor 302 and a third position sensor 303. Each group of position sensors 300 is set to an average value of the distance between the vehicle body and the vehicle body in the initial state is A, that is, the average value of the theoretical distance detected by each group of position sensors 300 at both ends of the inflatable capsule 100 is A. The pressure sensors 400 are divided into four groups and are respectively located at the upper end, lower end, left end and right end of the inflatable capsule 100. Each group has two or more pressure sensors 400. Each group of pressure sensors 400 is set to an initial state. The gas pressure setting value of each point inside the inflatable capsule 100 is X.

[0042] When a rail transit vehicle runs through a non-straight section or a section with a height difference, the position and distance between the vehicle bodies change. When the vehicle body stretches the inflatable capsule 100 during operation, the first position sensor 301, the second position sensor 302 and the third position sensor 303 for real-time position detection are respectively located inside the inflatable capsule 100, the first outer side of the inflatable capsule 100 and the second outer side of the inflatable capsule 100 to detect the distance in real time. Taking the upper left end of the inflatable capsule 100 as an example, the first position sensor 301, the second position sensor 302 and the third position sensor 303 respectively detect the distance values ​​A1, A2 and A3 of the upper left end of the inflatable capsule 100, and feed back the real-time detected distance value information to the control system. The control system calculates the actual distance value information fed back by the position sensor 300 by an average algorithm and compares it with the theoretical distance average value A. When the actual distance average value is ≥110% of the initial distance setting value A, the control system controls the inflation system to start, and inflates the inside of the inflatable capsule 100 through the inflation port 500.

[0043] At the same time, when any one of the distance values ​​A1, A2, A3 detected by the first position sensor 301, the second position sensor 302, and the third position sensor 303 located between any two end positions of the upper left end, the upper right end, the lower left end, and the lower right end is greater than or equal to 130% of the initial distance setting value A, the control system controls the inflation system to open and inflate the inside of the inflatable capsule 100 through the inflation port 500. At the same time, when any one of the distance values ​​A1, A2, A3 detected by the first position sensor 301, the second position sensor 302, and the third position sensor 303 located between any two end positions of the upper left end, the upper right end, the lower left end, and the lower right end is compared with the initial distance setting value A, and the actual distance average value is greater than 90% of the theoretical distance average value A, and the actual distance average value is less than 100% of the theoretical distance average value A, the control system controls the inflation system to close, and the inflation port 500 no longer inflates the inside of the inflatable capsule 100.

[0044] As the vehicle body compresses the inflatable capsule 100 during operation, the control system controls the exhaust system to open, and exhausts the excess high-pressure gas inside the inflatable capsule 100 through the exhaust port 600 .

[0045] The inflatable capsule 100 cannot be inflated or exhausted at the same time, that is, when the inflatable system is inflating the inflatable capsule 100 through the inflating port 500, the exhaust port 600 of the exhaust system must be closed; and vice versa. According to the actual operation of the rail transit vehicle, the inflatable capsule 100 is repeatedly inflated or exhausted so that the inflatable capsule 100 always meets the use requirements during the operation of the vehicle body.

[0046] The pressure sensor 400 used for real-time gas pressure detection adopts multiple groups, and each group has no less than 2 for layout, and preferably adopts 3 for equidistant layout. Taking the upper end of the inflatable capsule 100 as an example, the pressure sensor 400 detects the gas pressure values ​​of three points at the upper end of the inflatable capsule 100, which are X1, X2, and X3 respectively, and feeds back the real-time monitored gas pressure value information to the control system. The control system calculates the actual gas pressure value information fed back by the pressure sensor 400 by the average algorithm and compares it with the initial gas pressure setting value X. When the actual gas pressure value is less than or equal to 95% of the initial gas pressure setting value X, the control system controls the inflation system to start, and inflates the inside of the inflatable capsule 100 through the inflation port 500 to ensure the balance of the internal pressure of the inflatable capsule 100, so as to ensure the maintenance of the sound insulation and heat insulation effect between the vehicle body and the vehicle body.

[0047] At the same time, when any gas pressure value among the gas pressure values ​​X1, X2, X3 detected by the pressure sensor 400 located between any two parts of the upper end, the lower end, the left end and the right end is less than or equal to 95% of the initial gas pressure setting value X, the control system controls the inflation system to turn on and inflate the inside of the inflatable capsule 100 through the inflation port 500.

[0048] When any of the gas pressure values ​​X1, X2, and X3 detected by the pressure sensor 400 located between any part of the upper end, the lower end, the left end, and the right end is greater than or equal to 120% to 130% of the initial gas pressure setting value X, the control system controls the exhaust system to open and discharge the high-pressure gas inside the inflatable capsule 100 through the exhaust port 600. The inflatable capsule 100 cannot be inflated or exhausted at the same time, that is, when the inflatable system inflates the inflatable capsule 100 through the inflatable port 500, the exhaust port 600 of the exhaust system must be closed; and vice versa. The inflatable capsule 100 is repeatedly inflated or exhausted in this way so that the inflatable capsule 100 always meets the use requirements during the operation of the vehicle body.

[0049] The inflatable capsule 100 has an inflatable port 500 of the inflatable system and an exhaust port 600 of the exhaust system arranged alternately, so that the vehicle bodies on both sides fixedly mounted with the inflatable capsule 100 can have both an inflatable system and an exhaust system to inflate and exhaust the inside of the inflatable capsule 100, and the inflatable and exhaust performance is stable and reliable, and can achieve rapid inflating and exhausting. It effectively ensures that there is always gas with a certain pressure inside the inflatable capsule 100 when the vehicle body is in normal operation, so as to meet the performance of the inflatable capsule 100.

[0050] Example 2

[0051] like Figure 5 As shown, based on the present invention, there is also an inflatable outer windshield. The basic structure of the inflatable outer windshield has been described in detail above and will not be laid out here. The inflatable outer windshield has an intermediate connecting profile, which is located between the interconnected inflatable capsules 100, and can be used to fix and connect the two inflatable capsules 100. The inflatable outer windshield of this structure effectively increases the adjustable range of stretching and compression of the outer windshield when the rail transit vehicle body is running, and has passed through the bending radius of non-straight sections or sections with high and low drops. It has a larger stretching and compression space and a smaller bending radius at the same time, which is more suitable for vehicles running in an environment with complex road conditions. As an intermediate connecting component, the intermediate connecting profile also plays a role in supporting the inflatable capsules 100 connected between the rail transit vehicle body and the body.

[0052] like Figure 6 As shown, based on the present invention, there is also an inflatable outer windshield. The basic structure of the inflatable outer windshield has been described in detail above and will not be laid out here. The inflatable outer windshield has an intermediate quick release device, which is mainly composed of a docking frame profile, a locking mechanism and a sealing strip. The sealing strip can ensure the air tightness of the windshield. The installation process is as follows: the inflatable outer windshield is installed by lifting equipment such as a crane, etc., the inflatable outer windshield is lifted, and moved to the installation position between the vehicle body and the vehicle body. The position of the docking frame on the inflatable outer windshield is adjusted so that the centering pin on the adapter frame is inserted into the centering seat on the docking frame. The locking rod is twisted from the inside of the car to achieve connection between the adapter frame and the docking frame. The release process is as follows: use the handle to open the locking device and push the inflatable outer windshield to both sides. This is to achieve rapid release of the inflatable outer windshield.

[0053] The beneficial effects of the present invention are as follows: 1. The inflatable outer windshield structure with an inflation system and an exhaust system can effectively ensure the stability of the gas pressure inside the inflatable capsule while effectively improving the airtightness between the vehicle body and the vehicle body. 2. The counter-wave structure of the inflatable capsule enables it to have sufficient compression and extension during inflation and deflation, thereby effectively extending the overall life of the inflatable capsule. 3. The inflation port and the exhaust port of the inflatable capsule are arranged one by one on the two side walls of the inflatable capsule, and the inflation port and the exhaust port are arranged in an alternating manner on the two side walls of the inflatable capsule, so that the inflation and exhaust performance are stable and reliable, and rapid inflation and exhaust can be achieved. 4. By using a frame between the inflatable capsule wave structure to shape the wave shape, the aesthetics is improved, and the generation of jitter or resonance during the operation of the rail transit vehicle is prevented. 5. The inflatable capsule of this structure has a simple structure, is easy to use and operate, and is easy to maintain, which greatly reduces the failure rate of the outer windshield.

[0054] Based on the above embodiments, this embodiment is inspired by the above ideal embodiments of the present invention. Through the above description, relevant staff can make various changes and modifications without departing from the technical idea of ​​this invention. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An inflatable outer windshield for connecting to a vehicle body of a rail transit vehicle, characterized in that: include: Inflatable capsule (100), connecting profile (200), inflation system, exhaust system; The inflatable capsule (100) is an integrated wave-proof structure, the two ends of which are screw-connected to the connecting profile (200), the connecting profile (200) is respectively fixedly connected to the vehicle bodies on both sides, and the middle part of the inflatable capsule (100) is a wave-shaped structure; Also included are position sensors (300) arranged at the upper left end, upper right end, lower left end and lower right end of the inflatable capsule (100), and pressure sensors (400) arranged at the upper end, lower end, left end and right end of the inflatable capsule (100); The position sensors (300) are located on the inner side and the outer side of the inflatable capsule (100), and the number of the position sensors (300) is not less than two, and the position sensors (300) are spaced apart from each other; the pressure sensors (400) are located on the inner side of the inflatable capsule (100), and the number of the pressure sensors (400) are spaced apart from each other; The position sensor (300) comprises: a first position sensor (301), a second position sensor (302) and a third position sensor (303), wherein the first position sensor (301) is located on the inner side of the inflatable capsule (100), and the second position sensor (302) and the third position sensor (303) are located on the first outer side and the second outer side of the inflatable capsule (100), respectively; The position sensor (300) is used to detect in real time the distance between the peripheral walls of the inflatable capsule (100) connected to the vehicle bodies on both sides. In order to improve the position detection accuracy, three sensors, namely a first position sensor (301), a second position sensor (302) and a third position sensor (303), are arranged at the upper left end, the upper right end, the lower left end and the lower right end of the inflatable capsule (100) connected to the vehicle bodies on both sides respectively. The second position sensor (302) located at the first outer side of the outermost edge of the inflatable capsule (100) is spaced 200 mm from the first position sensor (301); the third position sensor (303) located at the second outer side of the innermost edge of the inflatable capsule (100) is spaced 200 mm from the first position sensor (301); and the first position sensor (301), the second position sensor (302) and the third position sensor (303) are spaced equidistantly.

2. The inflatable outer windshield according to claim 1, characterized in that: The inflatable capsule (100) has a corrugated structure retaining frame in the middle.

3. The inflatable outer windshield according to claim 2, characterized in that: The retaining frame is a profile or a wire.

4. The inflatable outer windshield according to claim 1, characterized in that: The inflation system and the exhaust system have an inflation port (500) and an exhaust port (600) for connecting the outside world and the inflatable capsule (100).

5. The inflatable outer windshield according to claim 4, characterized in that: The inflation port (500) and the exhaust port (600) are arranged on the peripheral walls on both sides of the inflatable capsule (100) in a one-to-one correspondence.

6. The inflatable outer windshield according to claim 4, characterized in that: The inflation port (500) and the exhaust port (600) are arranged alternately on the peripheral walls on both sides of the inflatable capsule (100).

7. An inflatable outer windshield, comprising the structure according to any one of claims 1 to 6, characterized in that: It has an intermediate connecting profile or an intermediate quick unwinding device; the intermediate connecting profile or the intermediate quick unwinding device is located between mutually connected inflatable capsules (100), and the inflatable capsules (100) are connected or quickly unwinded via the intermediate connecting profile or the intermediate quick unwinding device.

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