Passive safety protective bellows structure for rolling stock, rolling stock and method

Abstract

A passive safety protective bellows structure for rolling stock, a rolling stock and a method, which solve the problem in the prior art that bellows structures fail to effectively buffer carriages against compression therebetween, and have the beneficial effects of effectively resisting to impact force and avoiding secondary collisions. The specific solution is as follows: the passive safety protective bellows structure for rolling stock comprises a capsule (2); the capsule (2) is mounted on rolling stock by means of a bellows mounting base (18); an empty chamber (1) is formed between the capsule (2) and the bellows mounting base (18); an air curtain (5) is provided in the empty chamber (1); the air curtain (5) is expandable; the air curtain (5) is supported by means of a plurality of fixing devices (3); the fixing devices (3) are arranged in the circumferential direction of the rolling stock; each fixing device (3) comprises a fixing base (14) mounted on the bellows mounting base (18); each side of each fixing base (14) is movably connected to a support member by means of a rotatable member (19); an elastic member (13) is provided between the rotatable member (19) on each side and the fixing base (14); the support members are connected to a fixing cover (7), with a space (20) formed therebetween to limit the air curtain (5) while supporting the air curtain (5).

Description

Rail vehicle passive safety protection type windscreen structure, rail vehicle and method

[0001] The present application claims priority to the Chinese patent application No. 202410627511.X, filed on May 20, 2024, and entitled "Rail vehicle passive safety protection type windscreen structure, rail vehicle and method", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of rail transportation, and in particular to a rail vehicle passive safety protection type windscreen structure, a rail vehicle and a method. BACKGROUND

[0003] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0004] In the field of rail transportation, the connection between adjacent carriages is generally a soft connection to ensure the relative movement between adjacent carriages. The soft connection mode uses a windscreen for transition, which plays a role in wind blocking and reducing running resistance.

[0005] The existing windscreen has a hollow structure inside and a rubber capsule outside. When running, the capsule will be compressed and deformed. When the rail vehicle is involved in a rear-end collision resulting in uncoupling, the adjacent carriages will be squeezed. The inventor found that at this time, the existing windscreen structure cannot effectively buffer the squeezing collision between adjacent carriages. When colliding, the end walls of adjacent vehicles directly contact each other. The collision energy between adjacent carriages is high, and the impact force is also strong. Such collision causes the squeezing between carriages to cause secondary impact on the carriages and passengers, causing secondary injury to passengers and causing great damage to the carriages. SUMMARY

[0006] In view of the deficiencies of the prior art, the first object of the present application is to provide a rail vehicle passive safety protection type windscreen structure, which can effectively resist impact force, avoid the formation of secondary impact, absorb impact energy and reduce damage to carriages and passengers.

[0007] The second object of the present application is to provide a rail vehicle including a passive safety protection type windscreen structure, which can effectively reduce damage to the rail vehicle during a collision.

[0008] In order to achieve the above-mentioned objects, the present application is implemented by the following technical solutions:

[0009] A passive safety windshield structure of a rail vehicle, comprising a capsule, the capsule is installed on the rail vehicle through a windshield mounting base, a cavity chamber is formed between the capsule and the windshield mounting base, an air curtain is arranged in the cavity chamber, the air curtain is inflatable, the air curtain is supported by a plurality of fixing devices, the fixing devices are arranged along the circumferential direction of the rail vehicle;

[0010] The fixing device comprises a fixing seat installed on the windshield mounting base, each side of the fixing seat is movably connected with a support member through a rotatable member, an elastic member is movably arranged between each side of the rotatable member and the fixing seat, the support member is detachably connected with a fixing cover, a space is formed between the two to support and limit the air curtain at the same time, the support member is provided with an extension part, the extension part is kept in an elongated state under the action of the elastic member, the extension part can be shortened with the inflation of the air curtain, so that the support member and the fixing cover are separated under the action of pressure with the inflation of the air curtain.

[0011] The windshield structure as described above, a plurality of fixing devices are arranged in the cavity chamber, the air curtain is supported by the plurality of fixing devices, the space formed between the fixing cover and the support member effectively limits the air curtain, avoiding the air curtain from shaking in the cavity chamber; the support member is subjected to a first force from the fixing cover, the elastic member provides a second force to the support member through the rotatable member, so that the extension part is kept in an elongated state under the action of the elastic member, providing pressure to the support member during the inflation of the air curtain, the support member is shortened under the action of pressure, so that the fixing cover is opened relative to the support member under the action of pressure with the inflation of the air curtain.

[0012] The passive safety windshield structure of a rail vehicle as described above, the air curtain is provided with an air port, the air port is connected with a gas filling device and a gas extraction device through a pipeline, a switch is arranged at the air port, the switch, the gas filling device and the gas extraction device are connected with a control unit;

[0013] The control unit is connected with a general controller of the rail vehicle, the general controller sends a collision signal to the control unit after receiving the collision signal, the control unit controls the switch, the gas filling device and the gas extraction device to act respectively;

[0014] Alternatively, the air curtain is a safety air bag, which can be inflated rapidly at the moment of collision, and after the safety air bag is inflated to closely contact with the inner wall of the capsule, the safety air bag is directly deflated under pressure.

[0015] The passive safety windshield structure of a rail vehicle as described above, the support member comprises two pairs of vertically arranged vertical stoppers, one side of the vertical stopper is connected with an open stopper, the other side of the vertical stopper is connected with a closed stopper, one side of the open stopper is provided with a groove, the closed stopper is inserted into the groove of the open stopper, and the closed stopper is movable relative to the groove to form the extension part;

[0016] The distance between the two vertical stoppers is less than the width of the fixed seat, so the angle between the two rotatable members and the fixed seat is an acute angle, so that the elastic member can be in a compressed state in normal times, ensuring the relative position between the open stopper and the closed stopper, and the elastic member can continue to be pressed when the air bag is inflated;

[0017] The length of the fixed seat is the same as the length of the support member.

[0018] The open stopper and the closed stopper are both arranged in a bent manner.

[0019] The open stopper and the closed stopper are respectively connected to the top side or the middle part of the vertical stopper, so as to reduce the contact area between the air curtain and the vertical stopper when the air curtain is inflated.

[0020] The recess of the open stopper has a set depth, and two opposite sides of the recess are respectively provided with rotating rollers, the rotating rollers are rotatable relative to the open stopper, and the adjacent two rotating rollers are arranged at a distance, and the rotating rollers are arranged to reduce the friction during the movement of the closed stopper towards the open stopper.

[0021] The fixed cover is a U-shaped fixed cover, and the vertical stopper is connected to the side wall of the U-shaped fixed cover through a positioning buckle, the positioning buckle is arranged to ensure the reliable connection between the fixed cover and the vertical stopper, and also facilitates the separation of the vertical stopper and the fixed cover when the support member is stressed.

[0022] The two sides of the fixed seat are respectively provided with lateral seats, the lateral seats are arranged to facilitate the movable connection with the rotatable members, the rotatable members are arranged at the two ends of the lateral seats, so that four rotatable members are arranged.

[0023] The rotatable member includes a linkage assembly, the linkage assembly includes two links, one end of each link is hingedly connected to the vertical stopper, and the other end is hingedly connected to the lateral seat, the two links and the vertical stopper and the lateral seat form a parallelogram mechanism, the two links are connected by a third link, and one of the links is connected to the elastic member.

[0024] The rail vehicle passive safety protection type windshield structure as described above, the elastic member comprises a supporting spring, one end of the supporting spring is installed on the fixed seat through a support, the other end of the supporting spring is connected with the rotatable member, the supporting spring can be compressed, when the air curtain is not inflated, the supporting spring is used to offset the force of the fixed cover on the supporting member, so that the opening stopper and the closing stopper remain in the elongated state, when the air curtain is inflated to generate pressure on the supporting member, the supporting spring can be continuously compressed.

[0025] The rail vehicle passive safety protection type windshield structure as described above, the fixed seat is provided with an opening, and a fastener passes through the opening to install the fixed seat on the windshield mounting seat.

[0026] In a second aspect, the present application further provides a rail vehicle adopting the rail vehicle passive safety protection type windshield structure.

[0027] In a third aspect, the present application further provides a working method of the rail vehicle passive safety protection type windshield structure, comprising the following contents.

[0028] The fixed seat of the fixed device is installed on the windshield mounting seat, and the air curtain is supported by the supporting member;

[0029] The fixed cover of each fixed device is covered on one side of the air curtain, and the fixed cover is connected with the supporting member, so that the air curtain is supported and limited by the fixed device, and the air curtain is prevented from shaking in the cavity during the running of the rail vehicle;

[0030] The capsule is installed on the windshield mounting seat;

[0031] After the rail vehicle collides, the air curtain starts to inflate, and the air curtain rapidly expands during the inflation process to apply pressure to the supporting member and the fixed cover, respectively, and under the action of the pressure, the relative movement between the supporting member and the fixed cover occurs, and the supporting member moves towards the fixed seat;

[0032] During the movement of the supporting member, the elastic member is compressed, the telescopic part of the supporting member is shortened, and the fixed cover is opened;

[0033] The air curtain continues to expand until it is attached to the inner wall of the capsule, at this time, the inside of the windshield structure of the adjacent car is filled with gas, part of the impact force is borne by the air curtain, the end wall of the adjacent car is prevented from directly contacting, and after the collision ends, the air curtain loses gas, and the energy generated by the collision of the adjacent car is absorbed through the gas loss process.

[0034] The beneficial effects of the present application are as follows:

[0035] 1) The air curtain support structure of the application is reasonably arranged, and multiple fixing devices are arranged in the cavity. The air curtain is supported by the multiple fixing devices. The space formed between the fixed cover and the support member effectively limits the air curtain, avoiding the air curtain from shaking in the cavity. The support member is connected with the fixed seat through the rotatable member. The elastic member is arranged between the rotatable member and the fixed seat. The support member is subjected to the first force of the fixed cover. The elastic member provides the second force to the support member through the rotatable member. Thus, the telescopic part is kept in the elongated state under the action of the elastic member and provides pressure to the support member during the inflation of the air curtain. The support member is shortened under the pressure, so that the fixed cover is opened relative to the support member under the pressure with the inflation of the air curtain. Thus, when the rail vehicle collides, the air curtain bears part of the impact force, avoiding the direct contact of the end walls of adjacent cars. By using the inflation and deflation process of the air curtain, the secondary damage caused by the extrusion between the cars to the cars and passengers is reduced, the damage value caused by the collision is minimized, and the passive safety protection of the rail vehicle is realized.

[0036] 2) The support member of the application is reasonably arranged. The support member comprises vertical stoppers. The vertical stoppers are connected with the open stoppers and the closed stoppers, respectively. One side of the closed stopper can be inserted into the groove of the open stopper to form a telescopic part. Under normal circumstances, the closed stopper enters the groove and does not reach the bottom surface of the groove under the action of the elastic member. When the air curtain inflates, the closed stopper can move along the groove under the action of the pressure, facilitating the separation of the fixed cover and the vertical stopper.

[0037] 3) The fixed cover of the application is U-shaped. The fixed cover and the support member form a space therebetween, and the two can support the air curtain from the ring direction of the air curtain. The fixed cover and the vertical stopper are connected through the positioning buckle. The arrangement of the positioning buckle ensures the reliable connection of the fixed cover and the vertical stopper and facilitates the separation of the vertical stopper and the fixed cover when the support member is stressed.

[0038] 4) The rotatable member of the application comprises a connecting rod assembly. The connecting rod assembly comprises two connecting rods. The two connecting rods, the vertical stoppers and the lateral seats form a parallelogram mechanism, ensuring that the two vertical stoppers can produce relative movement in the x direction and ensuring that the open stopper and the closed stopper can produce relative movement in the x direction.

[0039] 5) The elastic member of the application is reasonably arranged. The elastic member is connected between the fixed seat and the rotatable member. The elastic member is arranged at an acute angle with the fixed seat. When the air curtain does not inflate, the elastic member is used to offset the force of the fixed cover on the support member, so that the open stopper and the closed stopper remain in the elongated state. When the air curtain inflates and produces pressure on the support member, the elastic member can be further compressed.

[0040] 6) The method for operating the air curtain structure of the present application provides that the fixing device is first installed to support the air curtain, and then the capsule is installed. When the rail vehicle collides, the inflated air curtain bears part of the impact force, avoids the direct contact of the end walls of adjacent carriages, and can also absorb the energy generated by the collision of adjacent carriages after the collision ends. BRIEF DESCRIPTION OF DRAWINGS

[0041] The drawings accompanying the specification of the present application form a part thereof and serve to further understand the present application, the illustrative embodiments thereof, and the description thereof. The drawings do not limit the present application in any way.

[0042] Fig. 1 is a front view of a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application.

[0043] Fig. 2 is a schematic view of a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application when the air curtain fills the cavity chamber.

[0044] Fig. 3 is an internal installation sectional view of a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application.

[0045] Fig. 4 is a sectional view of a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application when the air curtain fills the cavity chamber.

[0046] Fig. 5 is a schematic view of the structure of a fixing device in a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application.

[0047] Fig. 6 is an isometric view of a fixing device in a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application.

[0048] Fig. 7 is a schematic view of the structure of a fixing device in a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application during the inflation of the air curtain.

[0049] Fig. 8 is a schematic view of a passive safety air curtain structure of a rail vehicle according to one or more embodiments of the present application after the inflation is completed in two adjacent carriages.

[0050] In the drawings, the mutual spacing or dimensions are exaggerated to show the positions of the parts, and the schematic views are only schematic.

[0051] Wherein: 1. Cavity; 2. Capsule; 3. Fixing device; 4. Fastening bolt; 5. Air curtain; 6. Fastening bolt hole; 7. Fixed cover; 8. Positioning buckle; 9. Open stop; 10. Closed stop; 11. Rotating roller; 12. Vertical stop; 13. Elastic member; 14. Fixed seat; 15. Support seat; 16. Lateral seat; 17. Control unit; 18. Windshield mounting seat; 19. Rotatable member; 20. Space; 21. Groove; 19-1. First connecting rod, 19-2. Second connecting rod, 19-3. Third connecting rod. DETAILED DESCRIPTION

[0052] It should be noted that the following detailed description is illustrative only, and is intended to provide further description in connection with the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0053] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0054] As introduced in the background section, the problem of secondary injury caused by the extrusion between carriages when the rail vehicle collides, in order to solve the above technical problem, the present application provides a passive safety protection type windshield structure of rail vehicle.

[0055] Embodiment one

[0056] In a typical embodiment of the present application, referring to FIG. 1 and FIG. 2, a passive safety protection type windshield structure of rail vehicle, comprising a capsule 2, the capsule 2 is installed on the rail vehicle through a windshield mounting seat 18, a cavity 1 is formed between the capsule 2 and the windshield mounting seat 18, an air curtain 5 is arranged in the cavity 1, the air curtain 5 is inflatable, the air curtain 5 is supported by a plurality of fixing devices 3, the fixing devices 3 are arranged along the circumferential direction of the rail vehicle;

[0057] The fixing device 3 comprises a fixing seat 14 installed on the windshield mounting seat 18, the fixing seat 14 is movably connected with the supporting member through the rotatable member 19, the elastic member 13 is movably arranged between the rotatable member 19 and the fixing seat on each side, the supporting member 13 is detachably connected with the fixing cover 7, a space is formed between the two to support and limit the air curtain at the same time, the fixing cover 7 is arranged opposite to the fixing seat, the supporting member is provided with an extension part, the extension part is kept in an elongated state under the action of the elastic member 13, the extension part can be shortened with the expansion of the air curtain 5, so that the supporting member is separated from the fixing cover 7 under the action of pressure with the expansion of the air curtain 5, thereby facilitating the continuous expansion of the air curtain, until the air curtain 7 is attached to the inner wall of the capsule 2, avoiding mutual extrusion between the end walls of the car body, and part of the impact force is borne by the air curtain 5.

[0058] Need to explain, the capsule 2 refers to the rubber capsule between two adjacent cars of the railway vehicle, which plays a role in noise reduction and drag reduction during the operation of the railway vehicle.

[0059] The fixing seat 14 is specifically a fixing plate, the center of the fixing seat 14 is provided with a fastening bolt hole, the fastening bolt 4 passes through the fastening bolt hole, and the fixing device 3 is installed on the windshield mounting seat 18 as shown in FIG. 3; the fixing seat is provided with a lateral seat 16 on each side, the lateral seat 16 is perpendicularly connected with the fixing seat, and each lateral seat is movably connected with the rotatable member 19.

[0060] Moreover, it is easy to understand that, except for the extension part, the components of the fixing device are symmetrically arranged about the central axis of the fastening bolt hole in normal state.

[0061] As shown in FIG. 5 and FIG. 6, the supporting member comprises two pairs of vertically arranged vertical stoppers 12, one side of the vertical stopper 12 is connected with the open stopper 9, and the other side of the vertical stopper is connected with the closed stopper 10, one side of the open stopper is provided with a groove 21, one side of the closed stopper is inserted into the groove 21 of the open stopper 9, and the closed stopper is movable relative to the groove 21 to form an extension part; the open stopper 9 and the closed stopper 10 are respectively installed on the inner side of the corresponding vertical stopper 12, the open stopper 9 and the closed stopper 10 and the fixing cover 7 form an annular space for restraining the air curtain 5, one section of the open stopper groove 21 and the section of the closed stopper that can be inserted into the groove are located on the same straight line, when the air curtain 5 is not expanded, one end of the closed stopper 10 is inserted into the groove 21 but does not reach the bottom surface of the groove.

[0062] The distance between the two vertical stoppers 12 is less than the width of the fixing seat 14, so that the included angle between the rotatable member on each side and the fixing seat is an acute angle, so that the elastic member 13 can be in a compressed state in normal state, ensuring the relative position between the open stopper 9 and the closed stopper 10, and the elastic member 13 can continue to be extruded when the air bag 5 is expanded.

[0063] In this embodiment, the fixed cover 7 is a U-shaped fixed cover, the two side walls of the fixed cover 7 are fixed to the vertical stopper 12 through the positioning buckle 8 respectively, the height of the two side walls of the fixed cover 7 is less than the height of the vertical stopper 12, that is, the two side walls of the fixed cover 7 are connected with the outer surface of the upper half of the corresponding vertical stopper 12 respectively, so as to avoid the interference with the movement of the rotatable member, the positioning buckle includes the convex part on the outside of the vertical stopper 12 and the concave part on the inside of the fixed cover 7, the setting of the positioning buckle 8 not only can ensure the reliable connection between the fixed cover and the vertical stopper 12, but also is convenient for the separation of the fixed cover and the vertical stopper 12;

[0064] It can be understood that the open stopper 9 and the closed stopper 10 are both arranged in a bent manner, which not only ensures the space 20 between the support member and the fixed cover 7, but also can reduce the contact area between the air curtain and the vertical stopper 12, one end of the open stopper 9 is connected with the upper half of the inside of the vertical stopper 12 on one side, and a groove 21 is arranged on the other side, the groove has a set depth, the height of the groove is less than the thickness of the open stopper, the closed stopper 10 is inserted into the groove on one side, and the closed stopper is movable relative to the groove, and the other end of the closed stopper is connected with the upper half of the vertical stopper 12 on the other side; two opposite side surfaces of the groove of the open stopper 9 are respectively provided with a plurality of rotating shafts 11, the rotating rollers 11 are rotatable relative to the open stopper, and the adjacent two rotating rollers 11 are arranged at a spacing distance, which can effectively reduce the resistance when the closed stopper 10 moves in the groove of the open stopper 9.

[0065] Specifically, the vertical stopper 12 is a vertical stopper plate with a set length, the open stopper 9 is an open stopper plate with a set length, the closed stopper 10 is a closed stopper plate with a set length, the lengths of the vertical stopper, the open stopper, the closed stopper and the fixed seat can be the same, the width of the fixed cover is less than the width of the fixed seat, the rotatable members are respectively arranged at the four corners of the fixed seat, and correspondingly, one elastic member 19 is arranged corresponding to each rotatable member.

[0066] It can be easily understood that the two sides of the fixed seat 14 are respectively provided with lateral seats 16, the length of the lateral seat is the same as the length of the fixed seat, the rotatable members are arranged at the two ends of the lateral seat, so that a total of four rotatable members are arranged, the lateral seat 16 is perpendicular to the fixed seat, the lateral seat 16 has a set height, the lateral seat 16 is higher than the surface of the fixed seat, so as to ensure the arrangement of the first connecting rod and the second connecting rod, and the arrangement of the lateral seat 16 is convenient for the movable connection with the rotatable member 19;

[0067] The rotatable member 19 comprises a linkage assembly, which comprises a first linkage 19-1 and a second linkage 19-2, one end of the first linkage 19-1 is hingedly connected to the middle section of the one side vertical stopper 12, the other end of the first linkage 19-1 is hingedly connected to the side of the lateral seat 16 away from the fixed seat 14, one end of the second linkage 19-2 is hingedly connected to the bottom end (the end away from the fixed cover 7) of the one side vertical stopper 12, the other end is hingedly connected to the side of the lateral seat 16 close to the fixed seat 14, the first linkage 19-1 and the second linkage 19-2 are connected by a third linkage 19-3, the third linkage 19-3 is hingedly connected to the first linkage and the second linkage respectively, the first linkage 19-1, the second linkage 19-2, the lateral seat 16 and the vertical stopper 12 form a parallelogram structure, which is to ensure that the relative movement between the two vertical stoppers 12 in the x direction can be generated, and to ensure that the relative movement between the open stopper 9 and the closed stopper 10 in the x direction can be generated.

[0068] Regarding the elastic member 13, one end of the elastic member 13 is hingedly connected to the support seat 15, which is installed on the fixed seat 14, and the other end of the elastic member 13 is connected to the second linkage 19-2 close to the lateral seat 16, the connection between the third linkage 19-3 and the second linkage 19-2 is located between the elastic member 13 (the connection point of the elastic member 13 and the second linkage) and the connection end of the second linkage and the lateral seat, so that the elastic member 13 is arranged at an acute angle with the fixed seat 14, and the other end of the support seat is connected to the second linkage to provide support force for the rotatable member.

[0069] It can be understood that the elastic member 13 can be a support spring, which has a certain rigidity and can adjust the length of the elastic member 13 within a certain range.

[0070] It should be noted that the air curtain 5 is a long strip-shaped air curtain, which is arranged along the ring of the rail vehicle and does not reach a circle, and the volume of the air curtain 5 after inflation is the same as that of the cavity chamber 1.

[0071] In this embodiment, the air curtain 5 has a gas port, which is provided with a switch, which can be an electromagnetic valve, and the gas port is connected to the inflation device and the air extraction device through pipelines, respectively, and the switch, the inflation device and the air extraction device are connected to the control unit, which is installed on the end wall outside the windshield structure, and the control unit is connected to the general controller of the rail vehicle to receive signals sent by the rail vehicle, and controls the opening of the air inlet switch and the inflation device to quickly inflate the air curtain 5, and a gas pressure sensor is arranged in the air curtain 5, which is connected to the control unit to obtain the pressure condition in the air curtain 5, and set the maximum pressure in the air curtain 5, when the pressure in the air curtain reaches the maximum value, the control unit receives the signal and controls the inflation device to stop working, and controls the air extraction device to open to quickly extract air from the air curtain.

[0072] Specifically, the inflator can be an existing inflator, and the air extractor can be an air extractor pump.

[0073] The control unit 17 can be a PLC controller or other types of controllers.

[0074] The air curtain length direction is arranged along the length direction of the support member, the two ends of the air curtain extend from the two ends of the support member, the support member is subjected to the first force of the fixing cover, the elastic member 13 provides the second force to the support member through the rotatable part 19, the stretchable part is kept in the elongated state under the action of the elastic member when the air curtain is not inflated, and the stretchable part provides pressure to the support member during the inflation of the air curtain, the support member is moved along the groove to the opening stopper 9 under the action of the pressure.

[0075] A working method of a passive safety protection type air baffle structure of a rail vehicle includes the following contents.

[0076] A plurality of fixing devices are respectively installed on the air baffle mounting seat through fastening bolts, the fixing devices for supporting the same air curtain can be arranged on the same loop of the rail vehicle, or can be deviated, for each fixing device, the front end of the closing stopper 10 is inserted into the groove of the opening stopper 9.

[0077] The air curtain 5 is placed on the surface of the closing stopper 10 and the opening stopper 9, and the fixing cover 7 is assembled with the vertical stopper 12 through the positioning buckle 8 to complete the fixation of the air curtain 5.

[0078] The capsule 2 is installed on the air baffle mounting seat 18.

[0079] When the general controller of the rail vehicle receives a rail vehicle collision signal or a car coupler uncoupling signal (how the general controller of the rail vehicle receives the rail vehicle collision signal or the car coupler uncoupling signal is prior art), the signal is sent to the control unit, the control unit 17 controls the opening of the control switch and the opening of the inflator, and the air curtain 5 starts to inflate in a short time.

[0080] During the inflation process, the air curtain 5 will rapidly expand and at the same time apply pressure to the surfaces of the opening stopper 9 and the closing stopper 10 and the inner surface of the fixing cover 7, under the action of the pressure, the surface formed by the opening stopper 9 and the closing stopper moves relative to the inner surface of the fixing cover 7, since the contact area of the air curtain 5 with the vertical stopper 12 can be ignored, therefore, the pressure generated by the air curtain 5 is borne by the inner surface of the fixing cover 7 and the outer surfaces of the opening stopper 9 and the closing stopper 10, under the action of the pressure, the opening stopper 9 and the closing stopper 10 move towards the fastening bolt 4, in this process, the support rod is compressed, and the closing stopper moves along the groove towards the opening stopper.

[0081] The vertical stoppers 12 on both sides generate opposite movement, when the movement is set to a distance, the positioning buckle 8 no longer limits the fixed cover 7, referring to figure 7, the fixed cover 7 is bounced away under the action of the inflation pressure of the air curtain 5;

[0082] The air curtain 5 is no longer constrained by the fixed cover, the air curtain 5 continues to inflate to the state of being attached to the inner wall of the capsule 2, at this time, the windshields of adjacent carriages are filled with gas, as shown in figure 8; that is, at the moment of decoupling collision of adjacent carriages of the rail vehicle, the air curtain inflates rapidly, so that the windshields of adjacent carriages are in close contact, and part of the impact force is borne by the inflated air curtain 5 inside, avoiding direct contact of the end walls of adjacent carriages, after the collision ends, the air curtain 5 rapidly loses gas, absorbing the energy generated by the collision of adjacent carriages through the gas loss process, avoiding secondary injury to the members of the carriages.

[0083] Embodiment two

[0084] The difference between this embodiment and embodiment one is that the air curtain is a safety airbag, which can quickly inflate at the moment of collision, and after inflating to be in close contact with the inner wall of the capsule, the safety airbag directly deflates under compression, the safety airbag loses gas, and the energy generated by the collision of adjacent carriages is absorbed through the gas loss process.

[0085] Embodiment three

[0086] This embodiment provides a rail vehicle, which adopts the passive safety protection type windshield structure of the rail vehicle described in embodiment one or embodiment two.

[0087] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A passive safety shielded windscreen structure for a rail vehicle, characterized in that, The capsule is installed on a rail vehicle through a windshield mounting base, a cavity chamber is formed between the capsule and the windshield mounting base, an air curtain is arranged in the cavity chamber, the air curtain is inflatable, the air curtain is supported through a plurality of fixing devices, and the fixing devices are arranged along a circumferential direction of the rail vehicle; The fixing device comprises a fixing base installed on the windshield mounting base, each side of the fixing base is movably connected with a support member through a rotatable member, an elastic member is movably arranged between each rotable member and the fixing base, the support member is detachably connected with a fixing cover, a space is formed between the support member and the fixing cover to support and limit the air curtain, the support member is provided with an extension part, the extension part is kept in an elongated state under the action of the elastic member, and the extension part can be shortened with the inflation of the air curtain, so that the support member and the fixing cover are separated under the action of pressure with the inflation of the air curtain.

2. A passive safety windscreen structure for a rail vehicle as claimed in claim 1, characterized in that, The air curtain is provided with an air port connected with a gas filling device and a gas extraction device through pipelines, and a switch is arranged at the air port, and the switch, the gas filling device and the gas extraction device are connected with a control unit; The control unit is connected with a general controller of the rail vehicle. Alternatively, the air curtain is a safety air bag.

3. A passive safety windscreen structure for a rail vehicle as claimed in claim 1, characterized in that, The support member comprises two pairs of vertically arranged vertical stoppers, one side of the vertical stopper is connected with an open stopper, and the other side of the vertical stopper is connected with a closed stopper, one side of the open stopper is provided with a groove, the closed stopper is inserted into the groove of the open stopper, and the closed stopper is movable relative to the groove to form the extension part; The distance between the two vertical stoppers is less than the width of the fixing base; The length of the fixing base is the same as the length of the support member.

4. A passive safety windscreen structure for a rail vehicle according to claim 3, characterized in that, The open stopper and the closed stopper are both arranged in a bent manner; The open stopper and the closed stopper are respectively connected with the top side or the middle part of the vertical stopper.

5. A passive safety windscreen structure for a rail vehicle as claimed in claim 3, characterized in that, The groove of the open stopper has a set depth, and two opposite sides of the groove are respectively provided with rotating rollers, the rotating rollers are rotatable relative to the open stopper, and the adjacent two rotating rollers are arranged at a spacing distance.

6. A passive safety windscreen structure for a rail vehicle as claimed in claim 3, characterized in that, The fixing cover is a U-shaped fixing cover, and the vertical stoppers are connected with the side walls of the U-shaped fixing cover through positioning buckles.

7. A passive safety windscreen structure for a rail vehicle as claimed in claim 3, characterized in that, Two sides of the fixing base are respectively provided with lateral seats, and the rotatable members are arranged at both ends of the lateral seats; The rotatable member comprises a linkage assembly, the linkage assembly comprises two linkages, one end of each linkage is hingedly connected with the vertical stopper, the other end is hingedly connected with the lateral seat, the two linkages and the vertical stopper and the lateral seat form a parallelogram mechanism, the two linkages are connected through a third linkage, and one of the linkages is connected with the elastic member.

8. A passive safety windscreen structure for a rail vehicle as claimed in claim 3, characterized in that, The elastic member comprises a supporting spring, one end of the supporting spring is installed on the fixing base through a support, and the other end of the supporting spring is connected with the rotatable member.

9. A passive safety windscreen structure for a rail vehicle as defined in claim 1, characterized in that, The fixing base is provided with an opening, and a fastener passes through the opening to install the fixing base on the windshield mounting base.

10. A rail vehicle, characterized by The rail vehicle passive safety protection type windshield structure of any one of claims 1-9 is adopted.

11. A method of operation of a passive safety windscreen structure for a rail vehicle according to any one of claims 1-9, characterized in that, The following contents are included: The fixing base of the fixing device is installed on the windshield mounting base, and the air curtain is supported through the support member; The following contents are included: The fixing cover of each fixing device is covered on one side of the air curtain, and the fixing cover is connected with the supporting member, so that the air curtain is supported and limited by the fixing device, and shaking of the air curtain in the cavity chamber during operation of the railway vehicle is avoided; The capsule is installed on the windshield mounting seat; After the railway vehicle collides, the air curtain starts to inflate, and the air curtain expands rapidly during the inflation process, and respectively applies pressure to the supporting member and the fixing cover. Under the action of the pressure, the supporting member and the fixing cover move relatively, and the supporting member moves towards the direction of the fixing seat; During the movement of the supporting member, the elastic member is compressed, the telescopic part of the supporting member is shortened, and the fixing cover is opened; The air curtain continues to expand until it is attached to the inner wall of the capsule. At this time, the inside of the windshield structure of the adjacent car is filled with gas, part of the impact force is borne by the air curtain, direct contact between the end walls of the adjacent cars is avoided, and after the collision ends, the air curtain loses gas, and the energy generated by the collision of the adjacent cars is absorbed through the gas loss process.

Images