Water injection device, carriage and railway vehicle

Abstract

The embodiment of the invention provides a water injection device, a carriage and a railway vehicle, the water injection device comprises an under-vehicle water injection pipeline and a water injection port, the under-vehicle water injection pipeline communicates with a water injection pipeline on a vehicle body, and the water injection port is located at the end, away from the vehicle body, of the under-vehicle water injection pipeline; the protective cover comprises a protective cover body and a protective cover cap, the protective cover cap is arranged on the protective cover body in an opening and closing mode, a closed cavity is formed by the protective cover body and the protective cover cap, and the water injection opening is located in the protective cover; and the heating device is positioned on the protective cover body and is used for heating the water filling nozzle in the protective cover. The water injection port in the protective cover is heated through the heating device, freezing or freezing blockage in a low-temperature environment is prevented, and the problem that the water injection device cannot be protected when the water injection device is within the range of an apron board but not in an equipment cabin is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail vehicle technology, in particular to a water injection device, a car and a rail vehicle. BACKGROUND

[0002] In order to inject water into the water tank of the rail vehicle, water injection devices are arranged on both sides of the vehicle. In order to avoid the situation of ice blocking in low temperature environment, the water injection device and the pipeline under the vehicle are provided with a heating device. When the water injection device is arranged at a position without apron, an electric heating water injection port can be used; when the water injection device is arranged at a position with apron, the water injection port is in the equipment cabin, and no additional protection is needed for the water injection port, and a heating wire is wound between the water injection pipe under the vehicle and the water injection port.

[0003] When the water injection device is within the apron range but not in the equipment cabin, it cannot be protected, and there is a problem of anti-freezing of the water injection port under the vehicle. SUMMARY

[0004] The present application provides a water injection device, a car and a rail vehicle to solve the problem that the water injection device cannot be protected when it is within the apron range but not in the equipment cabin.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A water injection device comprises:

[0007] A water injection pipeline under the vehicle and a water injection port, the water injection pipeline under the vehicle is in communication with a water injection pipeline on the vehicle body, and the water injection port is located at one end of the water injection pipeline under the vehicle away from the vehicle body;

[0008] A protective cover comprising a protective cover body and a protective cover cover, the protective cover cover is arranged on the protective cover body in an openable and closable manner, and the protective cover body and the protective cover cover form a closed cavity, and the water injection port is located in the protective cover;

[0009] A heating device located on the protective cover body for heating the water injection port in the protective cover.

[0010] In an optional embodiment, a pipeline mounting hole is arranged on the protective cover body, the pipeline mounting hole is located on the bottom wall of the protective cover body and penetrates through the bottom wall of the protective cover body;

[0011] The water injection pipeline under the vehicle is sleeved in the pipeline mounting hole.

[0012] In an optional embodiment, one end of the protective cover cover is hingedly arranged with the protective cover body.

[0013] In an optional embodiment, the heating device comprises:

[0014] a heating power interface, configured to be connected with a power supply line on the vehicle body;

[0015] a heating element, arranged on an inner wall of the protective cover body and connected with the heating power interface.

[0016] In an alternative embodiment, the heating device further comprises:

[0017] a pipeline heating element, arranged outside the protective cover body and extending along the vehicle-under water injection pipeline, the pipeline heating element being connected with the heating power interface.

[0018] In an alternative embodiment, further comprising:

[0019] a pipeline fixing device, a top end of which is fixed to the vehicle body, the vehicle-under water injection pipeline being arranged on the pipeline fixing device and fixed to the vehicle body via the pipeline fixing device.

[0020] In an alternative embodiment, the pipeline heating element comprises:

[0021] a heating cover plate and a heating extension element, the heating cover plate being detachably fixed to a bottom of the protective cover body, and the heating extension element being arranged along a length direction of the vehicle-under water injection pipeline.

[0022] In an alternative embodiment, the heating element is a resistance wire or an electrothermal film.

[0023] The application further provides a passenger compartment, comprising a vehicle body, an interior of the vehicle body being provided with a water injection pipeline, and the water injection pipeline being connected with the water injection device according to any one of the above embodiments.

[0024] The application further provides a railway vehicle, comprising the passenger compartment according to any one of the above embodiments.

[0025] The water injection device provided by the embodiments of the application comprises a vehicle-under water injection pipeline and a water injection port, the vehicle-under water injection pipeline being in communication with a water injection pipeline on a vehicle body, the water injection port being arranged at an end of the vehicle-under water injection pipeline away from the vehicle body; a protective cover comprising a protective cover body and a protective cover lid, the protective cover lid being openably and closably arranged on the protective cover body, and the protective cover body and the protective cover lid forming a closed cavity, the water injection port being arranged in the protective cover; and a heating device arranged on the protective cover body and configured to heat the water injection port in the protective cover.

[0026] Compared with the prior art, the water injection device, the vehicle compartment and the railway vehicle provided by the embodiments of the application have the following technical effects:

[0027] The water injection pipe under the vehicle is communicated with the water injection pipe on the vehicle body, and the water injection port is located at the end of the water injection pipe under the vehicle away from the vehicle body; when the water injection device is in the skirt plate range and without the equipment cabin, an additional protective cover is arranged to protect the water injection port, so as to avoid the water injection port from being polluted by the external environment, the protective cover includes a protective cover body and a protective cover cover, the protective cover cover is arranged on the protective cover body in an openable and closable manner, a heating device is arranged on the protective cover body, the water injection port in the protective cover is heated by the heating device, so as to prevent icing or freezing under low temperature environment, and the problem that the water injection device cannot be protected when the water injection device is in the skirt plate range but not in the equipment cabin is solved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application in any way. In the drawings:

[0029] Figure 1 A structure schematic diagram of a passenger room roof for a rail vehicle is provided for the embodiments of the application;

[0030] Figure 2 A sectional structure schematic diagram of a passenger room roof for a rail vehicle is provided for the embodiments of the application;

[0031] Figure 3 A structure schematic diagram of a roof profile is provided for the embodiments of the application;

[0032] Figure 4 A structure schematic diagram of a lamp strip profile from a first perspective is provided for the embodiments of the application;

[0033] Figure 5 A structure schematic diagram of a lamp strip profile from a second perspective is provided for the embodiments of the application;

[0034] Figure 6 A structure schematic diagram of a lamp strip profile from a third perspective is provided for the embodiments of the application;

[0035] Figure 7 A structure schematic diagram of a rotary connecting piece is provided for the embodiments of the application;

[0036] Figure 8 An installation structure schematic diagram of a middle roof stop gap assembly is provided for the embodiments of the application;

[0037] Figure 9 A structure schematic diagram of a side roof is provided for the embodiments of the application;

[0038] Figure 10 A structure schematic diagram of a hanging beam foundation is provided for the embodiments of the application;

[0039] Figure 11A sectional view structure schematic diagram of a water injection device provided for an embodiment of the application;

[0040] Figure 12 A structure schematic diagram of a protective cover provided for an embodiment of the application.

[0041] The signs in the drawings are as follows:

[0042] A vehicle body air supply duct 92200;

[0043] A hanging beam base 921, a top plate profile 922, a lamp strip profile 923, an edge top plate 924, a middle top plate 925, and a middle top blocking seam assembly 926;

[0044] A C-shaped mounting frame 9211 and a reinforcing rib plate 9212;

[0045] A top plate profile body 9221, a first sliding mounting cavity 9222, an edge top plate mounting part 9223, and a second sliding mounting cavity 9224;

[0046] A first mounting surface 9231, a second mounting surface 9232, a lamp strip profile mounting hole 9233, a middle top plate mounting clamping groove 9234, a limiting lap 92341, a middle top plate mounting plate 9235, a hinged connecting part 9236, a hook 92361, and a give-way mounting hole 92351;

[0047] A partition wall mounting part 9241, a longitudinal connecting plate 92411, and a partition wall mounting plate 92412;

[0048] A rotary connecting piece 9251, a lamp strip profile mounting seat 9252, a horizontal edge 92511, a vertical edge 92512, a rotating shaft 92513, a first limiting blocking edge 925121, a second limiting blocking edge 925122, and a third limiting blocking edge 925123;

[0049] A middle top blocking seam plate 9261 and a blocking seam plate mounting seat 9262;

[0050] A vehicle under-water injection pipeline 981, a water injection port 982, a protective cover 983, a heating device 984, and a pipeline fixing device 985;

[0051] A protective cover body 9831 and a protective cover cover 9832;

[0052] A heating power supply interface 9841 and a pipeline heating piece 9842;

[0053] A heating cover plate 98421 and a heating extension piece 98422. DETAILED DESCRIPTION

[0054] The embodiment of the application discloses a water injection device, a vehicle compartment and a railway vehicle, so as to solve the problem that the water injection device cannot be protected when it is in the skirt plate range but not in the equipment cabin.

[0055] In order to make the technical solutions and advantages of the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0056] Please refer to Figures 11-12 , Figure 11 A cross-sectional structure schematic diagram of a water injection device provided by an embodiment of the present application is shown in the figure. Figure 12 A structure schematic diagram of a protective cover provided by an embodiment of the present application is shown in the figure.

[0057] In a specific embodiment, the water injection device provided by the present application comprises:

[0058] A vehicle-under water injection pipeline 981 and a water injection port 982, the vehicle-under water injection pipeline 981 is in communication with the water injection pipeline on the vehicle body, and the water injection port 982 is located at the end of the vehicle-under water injection pipeline 981 away from the vehicle body;

[0059] A protective cover 983 comprising a protective cover body 9831 and a protective cover cover 9832, the protective cover cover 9832 is openably arranged on the protective cover body 9831, and the protective cover body 9831 and the protective cover cover 9832 form a closed cavity, and the water injection port 982 is located in the protective cover 983;

[0060] A heating device 984 located on the protective cover body 9831, used for heating the water injection port 982 in the protective cover 983.

[0061] The vehicle-under water injection pipeline 981 is in communication with the water injection pipeline on the vehicle body, the vehicle-under water injection pipeline 981 can be connected with the vehicle body by using a pipeline fixing device 985, and the vehicle-under water injection pipeline and the water injection pipeline on the vehicle body can be connected by flanges; the protective cover 983 comprises the protective cover body 9831 and the protective cover cover 9832, the protective cover body 9831 is fixed below the vehicle body, serving as a shell surrounding the water injection port 982, and the protective cover cover 9832 is openably arranged, facilitating the connection with the water injection equipment when opened, and protecting the water injection port 982 when closed; the protective cover body 9831 and the protective cover cover 9832 form a sealed space, preventing dust, rain, ice and the like from affecting the water injection port 982; the protective cover 983 is a cylindrical structure, and in other embodiments, the shape of the protective cover can be set as needed, which is within the protection scope of the present application.

[0062] The protective cover 9831 and the protective cover 9832 can be hinged or magnetically attracted to facilitate quick opening and closing. The surface material of the protective cover 983 can be stainless steel, plastic or composite material, which has certain corrosion resistance and durability. A sealing strip is arranged between the protective cover 9831 and the protective cover 9832 to enhance the dustproof and waterproof level.

[0063] The heating device 984 is located on the protective cover 9831 to heat the water injection port 982 and the surrounding area in the protective cover 983 to prevent icing or freezing in low temperature environment. The heating can be achieved by using electric heating film, PTC heating sheet or electric heating wire. The control mode can be manual control or automatic temperature control, which can be set as needed.

[0064] It can be understood that the protective cover 9832 is arranged downward to be close to the water injection port 982. The under-vehicle water injection pipeline 981 extends through the bottom wall of the protective cover 9831 to the inside of the protective cover 9831, preferably through the bottom wall of the protective cover 9831 to facilitate connection with the under-vehicle water injection pipeline 981.

[0065] Compared with the prior art, the water injection device, the vehicle compartment and the railway vehicle provided in the embodiments have the following technical effects:

[0066] The under-vehicle water injection pipeline 981 is in communication with the water injection pipeline on the vehicle body, and the water injection port 982 is located at the end of the under-vehicle water injection pipeline 981 away from the vehicle body. When the water injection device is within the skirt plate range and without the equipment cabin, an additional protective cover 983 is arranged to protect the water injection port 982, avoiding pollution of the water injection port 982 by the external environment. The protective cover 983 includes a protective cover body 9831 and a protective cover 9832, and the protective cover 9832 is arranged on the protective cover body 9831 in an openable and closable manner. A heating device 984 is arranged on the protective cover body 9831 to heat the water injection port 982 in the protective cover 983 to prevent icing or freezing in low temperature environment, thereby solving the problem that the water injection device cannot be protected when it is within the skirt plate range but not in the equipment cabin.

[0067] In an optional embodiment, a pipeline mounting hole is arranged on the protective cover body 9831, which is located on the bottom wall of the protective cover body 9831 and penetrates the bottom wall of the protective cover body 9831. The under-vehicle water injection pipeline 981 is sleeved in the pipeline mounting hole.

[0068] The under-vehicle water injection pipeline 981 extends through the pipeline mounting hole to the inside of the protective cover body 9831. The water injection port 982 is in communication with the under-vehicle water injection pipeline 981 and forms a clamping device to prevent the under-vehicle water injection pipeline 981 from falling off the protective cover body 9831.

[0069] In an embodiment, one end of the protective cover 9832 is hingedly arranged with the protective cover body 9831, and the protective cover 983 is a cuboid structure, one side of which in the length direction is provided with a hinge shaft to realize the hinge connection of the protective cover 9832 and the protective cover body 9831.

[0070] In this embodiment, the heating device 984 includes a heating power interface 9841 and a heating element; the heating power interface 9841 is connected with a power supply line on the vehicle body, and the heating element is arranged on the inner wall of the protective cover body 9831 and connected with the heating power interface 9841 to realize electric heating. The heating element can be arranged as a resistance wire or an electric heating film, which can be arranged as needed. Further, the above-mentioned heating device 984 further includes a pipeline heating element 9842 located outside the protective cover body 9831, which is also connected with the heating power interface 9841 and extends along the vehicle down water injection pipeline 981. The pipeline heating element 9842 is connected with the heating power interface 9841. In other embodiments, the heating power interface 9841 can be integrated on the protective cover 9832 or the connecting device of the protective cover 9832, which can be arranged as needed.

[0071] The pipeline heating element 9842 includes a heating cover plate 98421 and a heating extension element 98422, the heating cover plate 98421 is detachably fixedly connected with the bottom wall of the protective cover body 9831, and the heating extension element 98422 extends to the side close to the vehicle body along the arrangement direction of the vehicle down water injection pipeline 981 to heat the entire vehicle down water injection pipeline 981. By integrating the modular water injection device, the problem of protecting the water injection port 982 in the apron range and without equipment cabin is solved.

[0072] The application also provides a passenger compartment, which includes a vehicle body, a passenger compartment top plate arranged on the top of the vehicle body, and a water injection pipeline arranged in the interior of the vehicle body and connected with the water injection device of any one of the above-mentioned embodiments.

[0073] The passenger compartment top plate provided by the application is described as follows, please refer to Figures 1-10 , Figure 1 A structural schematic diagram of a passenger compartment top plate for a railway vehicle provided by an embodiment of the application; Figure 2 A sectional structural schematic diagram of a passenger compartment top plate for a railway vehicle provided by an embodiment of the application; Figure 3 A structural schematic diagram of a top plate profile provided by an embodiment of the application; Figure 4 A structural schematic diagram of a lamp strip profile from a first perspective provided by an embodiment of the application; Figure 5 A structural schematic diagram of a lamp strip profile from a second perspective provided by an embodiment of the application; Figure 6 A structural schematic diagram of a lamp strip profile from a third perspective provided by an embodiment of the application; Figure 7 A structural schematic diagram of a rotary connecting piece provided by an embodiment of the application;Figure 8 An installation structure diagram of the middle top stop seam assembly provided by the embodiment of the present application is provided. Figure 9 A structure diagram of the side top plate provided by the embodiment of the present application is provided. Figure 10 A structure diagram of the hanging beam base provided by the embodiment of the present application is provided.

[0074] In a specific embodiment, the passenger compartment top plate for a rail vehicle provided by the present application comprises a hanging beam base 921, a top plate profile 922, a lamp strip profile 923, a side top plate 924 and a middle top plate 925. The hanging beam base 921 is integrated on the transverse sides of a vehicle body air duct 92200. It can be understood that the vehicle body air duct 92200 extends along the longitudinal direction of the vehicle body and can be provided in several numbers. Each vehicle body air duct 92200 is arranged along the longitudinal direction of the vehicle body. Each vehicle body air duct 92200 is provided with a plurality of hanging beam bases 921 on the transverse sides, respectively. The hanging beam base 921 is integrated with the vehicle body air duct 92200, which reduces the additional installation steps and improves the installation efficiency. The upper end of the hanging beam base 921 is hoisted with the roof of the vehicle body. Specifically, a C-shaped groove is provided on the vehicle body, and the hoisting with the vehicle body is realized through the C-shaped groove. As a basic support structure of the top plate system, the hanging beam base 921 enhances the stability of the entire top plate system.

[0075] The top plate profile 922 is provided on the transverse sides of the vehicle body air duct 92200 and extends along the longitudinal direction of the vehicle body and is located at the bottom of the corresponding side hanging beam base 921. The top plate profile 922 is detachably fixed with at least one hanging beam base 921. Preferably, the top plate profile 922 is located at the bottom of the hanging beam base 921, and the top plate profile 922 is fixed with any hanging beam base 921 through a threaded fastener, which facilitates disassembly and maintenance. The top plate profile 922 can be made of lightweight high-strength material to reduce weight and ensure structural strength. The lamp strip profile 923 extends along the longitudinal direction of the vehicle body and is also located on the transverse sides of the vehicle body air duct 92200. The lamp strip profile 923 is detachably fixed with the corresponding side top plate profile 922, such as through a bolt or other fastener, which facilitates disassembly and replacement of the lamp strip. The side top plate 924 extends along the longitudinal direction of the vehicle body. The transverse side of the side top plate 924 is detachably fixed with the top plate profile 922, which facilitates disassembly and maintenance. The other side is used for installing a luggage rack and is provided with mounting hole positions for a luggage compartment, which facilitates installation and adjustment of the luggage rack.

[0076] The middle top plate 925 extends along the longitudinal direction of the vehicle body and is located below the vehicle body air duct 92200 to provide top plate coverage for the central area. The transverse side of the middle top plate 925 is hinged with the corresponding side lamp strip profile 923, and the other side is detachably fixed with the corresponding side lamp strip profile 923, so that the middle top plate 925 can rotate open and close around the longitudinal direction of the vehicle body, which facilitates maintenance and repair. Through the combination of hinges and detachable fasteners, the middle top plate 925 can be conveniently opened and closed, which facilitates maintenance of the air duct and other internal facilities.

[0077] Compared with the prior art, the passenger compartment roof for a rail vehicle provided in the embodiments of the present application has the following technical effects:

[0078] The passenger compartment roof includes a hanging beam base 921, a roof profile 922, a light strip profile 923, a middle roof 925, and a side roof 924. One end of the hanging beam base 921 is integrated with a vehicle body air duct 92200 and can be hoisted with the roof of the vehicle body, providing a mounting interface for the roof profile 922. The hanging beam base 921 is directly integrated on the vehicle body air duct 92200, reducing additional installation steps and improving installation efficiency. The roof profile 922 is located at the bottom of the hanging beam base 921, providing a main roof support and installation platform. The light strip profile 923 is used for installing a light strip to provide interior lighting. The side roof 924 is detachably fixedly connected with the roof profile 922 to facilitate disassembly and maintenance. The middle roof 925 provides roof coverage for the central area, is hingedly connected with the light strip profile 923 on one side and is detachably fixedly connected with the light strip profile 923 on the corresponding side, so that the middle roof 925 can be rotated open and closed around the longitudinal direction of the vehicle body, facilitating maintenance and repair of the air duct and other internal settings.

[0079] The detachable fixed connection of the above structures facilitates quick installation and disassembly, reduces construction time and cost, and facilitates maintenance personnel to open the roof for inspection and repair of the air duct and other equipment, improving maintenance efficiency. The hanging beam base 921 is directly integrated on the vehicle body air duct 92200, providing a solid support structure and enhancing the stability of the entire roof system. The side roof 924 not only provides roof coverage but also reserves a luggage rack mounting position, fully utilizing the interior space. Through reasonable component layout and design, the interior space is maximized to provide a comfortable riding experience.

[0080] Specifically, the roof profile 922 includes a roof profile body 9221. A first sliding installation cavity 9222 is arranged at the top of the roof profile body 9221. The first sliding installation cavity 9222 has a top opening and penetrates the roof profile body 9221 in the longitudinal direction. The first sliding installation cavity 9222 is used to be fixed with the hanging beam base 921 through a threaded fastener. The first sliding installation cavity 9222 penetrates the roof profile body 9221 in the longitudinal direction and has a top opening, facilitating sliding of the threaded fastener in the first sliding installation cavity 9222. The first sliding installation cavity 9222 can be a C-shaped groove, allowing components to be flexibly adjusted in the longitudinal direction, making the installation process more flexible and convenient. An adjustment pad can be arranged between the first sliding installation cavity 9222 and the hanging beam base 921 to provide an adjustment amount for installation of the side roof 924.

[0081] The top plate profile body 9221 is provided with a side top plate mounting portion 9223 extending away from the vehicle body air supply duct 92200 along the transverse direction, and the bottom of the top plate profile body 9221 is provided with a second sliding mounting cavity 9224 having a bottom opening and extending through the top plate profile body 9221 along the longitudinal direction, which is used to be fixed with the lamp strip profile 923 through threaded fasteners. The side top plate mounting portion 9223 is provided with a side top plate 924 mounting hole for detachable fixed connection with the side top plate 924, such as threaded fasteners. The second sliding mounting cavity 9224 is arranged at the bottom of the top plate profile body 9221 and is fixed with the lamp strip profile 923 through threaded fasteners. It can be understood that the first sliding mounting cavity 9222 and the second sliding mounting cavity 9224 can be arranged respectively along the transverse direction, thereby improving the connection strength and system stability. The structure of the second sliding mounting cavity 9224 can be arranged in the same way as the first sliding mounting cavity 9222, such as a C-shaped groove, which allows flexible adjustment of the position in the longitudinal direction, further making the installation process more flexible and convenient.

[0082] It can be understood that the design of the first sliding mounting cavity 9222 and the second sliding mounting cavity 9224 allows the assembly to be flexibly adjusted in the longitudinal direction, making the installation process more flexible and convenient. The sliding mounting cavity extends through the entire top plate profile body 9221 along the longitudinal direction, ensuring uniform and stable installation throughout the length range and avoiding local stress concentration. The top opening first sliding mounting cavity 9222 and the bottom opening second sliding mounting cavity 9224 facilitate installation from the top and bottom directions, simplifying the construction process. The top plate profile 922 is fixed with the hanging beam foundation 921 and the lamp strip profile 923 through threaded fasteners (such as bolts), providing a firm and reliable connection method to ensure the stability of the entire structure.

[0083] In one embodiment, the cross section of the top plate profile body 9221 is rectangular, the bottom edge of the cross section of the top plate profile body 9221 is provided with a downward opening clamping groove to form the second sliding mounting cavity 9224, the top edge of the cross section of the top plate profile body 9221 is strip-shaped and protrudes from the side edge of the cross section of the top plate profile body 9221 along the width direction, and the top edge is provided with an upward opening clamping groove to form the first sliding mounting cavity 9222. The inner top edge of the strip-shaped top edge protrudes outwardly along the transverse direction from the outer top edge of the strip-shaped top edge to form the side top plate mounting portion 9223.

[0084] The cross section of the top plate profile body 9221 is rectangular to provide a solid base structure which can effectively disperse stress and enhance the strength and stability of the overall structure. The bottom edge of the cross section of the top plate profile body 9221 is provided with two downwardly open clamping grooves in the transverse direction, forming two second sliding installation cavities 9224 arranged side by side, and the top edge of the cross section of the top plate profile body 9221 is provided with two clamping grooves arranged side by side in the transverse direction, forming two first sliding installation cavities 9222, further improving the firmness of the connection. The top edge of the cross section of the top plate profile body 9221 is strip-shaped, and it can be understood that the top edge includes an outer top edge and an inner top edge, and two C-shaped grooves are arranged between the outer top edge and the inner top edge. The inner top edge is the groove bottom of the clamping groove, and the outer top edge is provided with the groove opening of the clamping groove. The side edges of the two C-shaped grooves serve as reinforcing ribs between the outer top edge and the inner top edge. The inner top edge is in communication with the side edge of the C-shaped groove on one side in the transverse direction, and is not in communication with the side edge of the cross section of the top plate profile body 9221 on the same side. The outer top edge is in communication with the side edge of the cross section of the top plate profile body 9221 on the same side.

[0085] The inner top edge of the strip-shaped top edge protrudes outwardly in the transverse direction from the outer top edge of the strip-shaped top edge, forming a side top plate installation portion 9223, providing an additional installation plane, not only enhancing the structural strength of the top plate profile 922, but also providing a stable installation foundation for the side top plate 924, increasing the flexibility and stability of the installation of the side top plate 924; simplifying the installation and disassembly process of the side top plate 924, facilitating maintenance and replacement.

[0086] In another embodiment, the cross section of the light strip profile 923 is L-shaped, including a first installation surface 9231 and a second installation surface 9232. The first installation surface 9231 is used to shield the side top plate installation portion 9223, and the second installation surface 9232 is provided with a light strip installation portion for installing a light strip;

[0087] The back side of the second installation surface 9232 is provided with a closed cavity with an L-shaped cross section. The long side of the L-shaped closed cavity extends in a direction perpendicular to the second installation surface 9232, and the long side of the L-shaped closed cavity is provided with a light strip profile installation hole 9233 penetrating in the thickness direction;

[0088] The front side of the second installation surface 9232 is provided with a middle top plate 925 installation portion. The middle top plate 925 installation portion includes a front-end-opened middle top plate installation clamping groove 9234, a middle top plate installation plate 9235, and a hinged connection portion 9236;

[0089] The middle top plate installation plate 9235 is located below the side wall of the middle top plate installation clamping groove 9234 and extends forward;

[0090] The hinged connection portion 9236 is located at the front end of the middle top plate installation plate 9235 and extends forward by a preset distance, then extends downward and is provided with a bent hook 92361 bent upward and inward at the bottom end;

[0091] The lateral side of the middle top plate 925 is provided with a rotating connecting piece 9251 which is located in the hook 92361 and can rotate around it.

[0092] The first mounting surface 9231 is used to shield the connection between the edge top plate mounting part 9223 and the edge top plate 924, and is preferably a horizontal surface. The second mounting surface 9232 is preferably a vertical surface. The connection between the first mounting surface 9231 and the second mounting surface 9232 is transitioned by an inverted right angle. It can be understood that the side of the second mounting surface 9232 closer to the first mounting surface 9231 is the front, and the side farther away from the first mounting surface 9231 is the back. The front of the second mounting surface 9232 is used to mount a lamp strip mounting part of a lamp strip. The lamp strip mounting part is specifically a plurality of lamp strip mounting holes arranged in the longitudinal direction on the front of the second mounting surface 9232. The back side of the second mounting surface 9232 is provided with a closed cavity in the shape of an L in cross section. The outer wall of the short side of the L-shaped closed cavity is coplanar with the back of the second mounting surface 9232. The long side of the L-shaped closed cavity extends outwardly in a direction perpendicular to the second mounting surface 9232. The long side of the L-shaped closed cavity is provided with a lamp strip profile mounting hole 9233 which penetrates in the thickness direction. The lamp strip profile mounting hole 9233 cooperates with the second sliding mounting cavity 9224. The lamp strip profile mounting hole 9233 is a strip-shaped hole which extends in a direction perpendicular to the second mounting surface 9232 to allow flexible adjustment of the position of the assembly in the lateral direction. There are two lamp strip profile mounting holes 9233 which are staggered in the longitudinal direction to optimize the profile mounting space.

[0093] The front side of the second mounting surface 9232 is provided with a middle top plate 925 mounting part which provides additional support and fixing points to enhance the stability of the middle top plate 925. The middle top plate 925 mounting part has a front-end-opened middle top plate mounting clamping groove 9234, a middle top plate mounting plate 9235 and a hinged connecting part 9236. The front-end-opened middle top plate mounting clamping groove 9234 is preferably a C-shaped groove. The middle top plate mounting plate 9235 is located on the lower side wall of the middle top plate mounting clamping groove 9234 and extends forward and protrudes from the front wall of the middle top plate mounting clamping groove 9234. The middle top plate mounting plate 9235 is used for detachable fixed connection with the middle top plate 925. The hinged connecting part 9236 extends forward by a preset distance from the front end of the middle top plate mounting plate 9235 and then extends downward and is provided at the bottom end with a hook 92361 which bends upward and rearward.

[0094] Correspondingly, the lateral side of the middle top plate 925 is provided with a rotating connecting piece 9251 which is located in the hook 92361 and can rotate around it, realizing the opening and closing function of the middle top plate 925. The combination design of the middle top plate mounting clamping groove 9234, the middle top plate mounting plate 9235 and the hinged connecting part 9236 provides multiple-point support, enhancing the stability and safety of the middle top plate 925.

[0095] It can be understood that one lateral side of the middle top plate 925 is hinged with the light strip profile 923 on this side, and the other lateral side of the middle top plate 925 is detachably fixedly connected with the light strip profile 923 on this side. The middle top plate mounting plate 9235 of the light strip profile 923 detachably fixedly connected with the middle top plate 925 is provided with a clearance mounting hole 92351. The clearance mounting hole 92351 is set as a rectangle to facilitate production and processing. The clearance mounting hole 92351 penetrates the middle top plate mounting plate 9235 along the thickness direction. The middle top plate 925 is located below the middle top plate mounting plate 9235. It can be understood that one lateral side of the middle top plate 925 is provided with a rotating connecting piece 9251, and the other lateral side of the middle top plate 925 is provided with a light strip profile mounting seat 9252. The light strip profile mounting seat 9252 is located in the clearance mounting hole 92351 along the vertical direction. The bottom of the light strip profile mounting seat 9252 is fixed with the middle top plate 925 through a threaded fastener. The side of the light strip profile mounting seat 9252 is fixed with the middle top plate mounting clamping groove 9234 through a threaded fastener. The light strip profile mounting seat 9252 is an L-shaped mounting seat. The opposite ends of the L-shaped mounting seat in the width direction are provided with reinforcing rib plates 9212. The horizontal plate of the L-shaped mounting seat is provided with a through hole. The bottom plate is located on the middle top plate 925 and is fixed through the through hole and a threaded fastener. The vertical plate of the L-shaped mounting seat is provided with a strip-shaped hole to facilitate the alignment and installation with the middle top plate mounting clamping groove 9234. The strip-shaped hole extends along the vertical direction. The vertical plate is fixed with the middle top plate mounting clamping groove 9234 through the strip-shaped hole and a threaded fastener. The threaded fastener can be set as a screw, a bolt or other threaded structure, which can be set as required.

[0096] Specifically, the side walls of the middle top plate mounting clamping groove 9234 are oppositely provided with a group of limiting flanges 92341, which are oppositely arranged on the two side walls along the vertical direction. The limiting flanges 92341 and the front wall of the middle top plate mounting clamping groove 9234 limit the movement of the threaded fastener along the groove depth direction, so that the threaded fastener can only move along the groove length direction, avoiding the fastener from deviating from the predetermined position due to sliding during installation, ensuring the firm connection between the middle top plate 925 and the light strip profile 923, and preventing loosening caused by vibration or temperature change. The operator does not need to repeatedly adjust the screw position, which improves the assembly efficiency.

[0097] In this embodiment, the middle top plate mounting plate 9235 is a closed cavity with an L-shaped cross section. The L-shaped closed cavity of the middle top plate mounting plate 9235 includes a top wall, a side wall, and two parallel upper and lower L-shaped walls. The top wall is integrally provided with the side wall of the middle top plate mounting clamping groove 9234. The front end of the upper L-shaped wall protrudes from the front end of the lower L-shaped wall. The side wall is connected to the front end of the upper L-shaped wall obliquely upward from the front end of the lower L-shaped wall.

[0098] The width of the top wall corresponds to the distance between the front wall of the middle top plate mounting slot 9234 and the limiting flange 92341, and is preferably the same material as the top wall of the middle top plate mounting plate 9235 and the side wall of the middle top plate mounting slot 9234, which is an integral structure, thereby further improving the structural strength and ensuring continuous stress; one-piece molding reduces the splicing process and improves product consistency; the closed cavity of the L-shaped structure can better resist bending and twisting deformation than the open profile; compared with the solid structure, the weight is reduced while the strength is ensured; suitable for welding or fastening connection: closed structure is easier to achieve sealing and carrying capacity.

[0099] The L-shaped closed cavity is composed of three parts: a top wall, a side wall, and two parallel upper and lower L-shaped walls. The two parallel L-shaped structures are located at different height layers of the closed cavity, providing multi-level mechanical support and enhancing shear resistance and bending resistance. The L-shaped closed cavity can be formed in one step by extrusion process and is suitable for industrial mass production. The front end of the upper L-shaped wall is more forward than the lower L-shaped wall, and the two are connected by a diagonal connecting side wall, forming a structure similar to "step + slope". The diagonal connection can better distribute the stress and improve the bending resistance, helping to smoothly transfer the load from the upper structure to the lower structure.

[0100] In one embodiment, the profile section body of the rotating connecting piece 9251 is inverted T-shaped, and the horizontal edge 92511 of the inverted T-shaped profile section of the rotating connecting piece 9251 is fixed to the middle top plate 925, preferably by welding. The vertical edge 92512 of the inverted T-shaped profile section is recessed inward along the horizontal direction, and the top end of the vertical edge 92512 extends downward to form a circular cross section as a rotating shaft 92513, which rotates within the hook 92361.

[0101] The profile section body of the rotating connecting piece 9251 is inverted T-shaped, composed of a horizontal edge 92511 and a vertical edge 92512. The inverted T-shaped structure can provide a larger contact area for secure connection with the middle top plate 925. The horizontal edge 92511 is used for fixed connection with the middle top plate 925 and is fixed on the middle top plate 925 by screws, welding or other means. The vertical edge 92512 is recessed inward along the horizontal direction. The recessed design makes the rotating shaft 92513 more prominent, facilitating the embedding of the hook 92361 of the lamp strip profile 923. At the same time, it avoids interference with other components and improves assembly convenience.

[0102] At the top of the vertical edge 92512, there is a downwardly extending cylindrical structure, which is the rotating shaft 92513; the rotating shaft 92513 is a key component for realizing the rotating function, providing a rotating fulcrum to enable the middle top plate 925 to perform opening and closing operations around the shaft; the circular cross-section is conducive to reducing friction and improving the flexibility and service life of rotation. The rotating shaft 92513 is inserted into the hook 92361 structure at the end of the lamp strip profile 923; the middle top plate 925 can freely rotate in the hook 92361 through the rotating shaft 92513, realizing the rotatable opening and closing function of the middle top plate 925, facilitating maintenance personnel to open the middle top plate 925 for internal equipment maintenance, and the structure is simple and reliable, easy to disassemble and assemble, and conforms to the modular design concept.

[0103] The above-mentioned middle top plate 925 has a rotatable opening and closing capability, greatly improving the maintenance efficiency and safety, and also enhancing the modular degree and aesthetic appearance of the whole vehicle.

[0104] Further, the side wall of the L-shaped closed cavity of the middle top plate mounting plate 9235, the bottom wall of the hinged connecting part 9236 and the hook 92361 form a rotating cavity;

[0105] The vertical edge 92512 of the inverted T-shaped profile section is respectively provided with a first limiting rib 925121, a second limiting rib 925122 and a third limiting rib 925123; the first limiting rib 925121 is located at the middle part of the vertical edge 92512 of the inverted T-shaped profile section, and is arranged towards the side wall of the L-shaped closed cavity of the middle top plate mounting plate 9235;

[0106] The second limiting rib 925122 is located at the top of the vertical edge 92512 of the inverted T-shaped profile section, and is arranged towards the bottom wall of the hinged connecting part 9236;

[0107] The third limiting rib 925123 is located at the downwardly extending part of the top end of the vertical edge 92512, and is arranged towards the hook 92361.

[0108] The side wall of the L-shaped closed cavity of the middle top plate mounting plate 9235, the bottom wall of the hinged connecting part 9236 on the lamp strip profile 923 and the hook 92361 together form a rotating cavity, which contains the rotating shaft 92513 of the inverted T-shaped profile section and allows it to freely rotate in this space, ensuring smooth rotation of the rotating shaft 92513 within a certain range, avoiding external interference, and preventing accidental disengagement or damage of the rotating shaft 92513 by limiting its range of motion.

[0109] The first limiting edge 925121 is located in the middle of the vertical edge 92512, facing the side wall of the L-shaped closed cavity, ensuring that the rotating shaft 92513 does not move excessively in the vertical and horizontal directions during rotation, providing an additional support point and increasing the overall structural rigidity; the second limiting edge 925122 is located at the top of the vertical edge 92512, facing the bottom wall of the hinged connection part 9236, ensuring that the rotating shaft 92513 does not disengage from the hinged connection part 9236 from above during rotation, and even if a larger upward force is applied, the structural integrity and functionality can be maintained; the third limiting edge 925123 is located at the top end of the vertical edge 92512, extending downward, facing the hook 92361, ensuring that the rotating shaft 92513 does not disengage from the hook 92361 from below during rotation. Each limiting edge helps to control the movement of the rotating shaft 92513 in different directions, preventing it from exceeding the designed range; the multiple limiting design reduces the possibility of the rotating shaft 92513 deviating or failing due to vibration or other external forces.

[0110] In another embodiment, a middle roof blocking groove assembly 926 is also included, located at the longitudinal ends of the middle roof plate 925 and extending along the transverse direction of the middle roof plate 925; the middle roof blocking groove assembly 926 includes:

[0111] The middle roof blocking groove plate 9261 and the two blocking groove plate mounting seats 9262 located at the transverse ends of the middle roof blocking groove plate 9261, the top end of the blocking groove plate mounting seat 9262 is fixed with the second sliding installation cavity 9224 through threaded fasteners; the bottom end of the blocking groove plate mounting seat 9262 is detachably connected with the middle roof blocking groove plate 9261.

[0112] The middle roof blocking groove plate 9261 is located between two adjacent middle roof plates 925 or between the end middle roof plate 925 and the end wall; the structural analysis of covering the edge of the middle roof plate 925 makes the top of the carriage more tidy, prevents dust, noise, etc. from entering the interior of the carriage, and improves passenger comfort; the middle roof blocking groove assembly 926 is composed of one middle roof blocking groove plate 9261 and two blocking groove plate mounting seats 9262, the two blocking groove plate mounting seats 9262 are respectively located at the left and right ends of the blocking groove plate mounting seat 9262, i.e. in the transverse direction of the vehicle body, double-sided installation ensures that the middle roof blocking groove plate 9261 is evenly stressed and is not easily deformed; the middle roof blocking groove plate 9261 and the blocking groove plate mounting seat 9262 can be manufactured, transported and replaced separately, reducing maintenance costs. The upper part of the blocking groove plate mounting seat 9262 is installed in the second sliding installation cavity 9224 on the lamp strip profile 923 through threaded fasteners such as screws, utilizing the existing sliding installation cavity without the need for additional drilling, saving assembly time; the sliding cavity allows displacement adjustment within a certain range, adapting to different vehicle models or installation errors. The lower part of the blocking groove plate mounting seat 9262 and the middle roof blocking groove plate 9261 are connected in a detachable manner, such as screws, buckles, etc., the middle roof blocking groove plate 9261 can be removed separately when it is damaged or needs to be cleaned, without affecting other structures; it is suitable for middle roof plates 925 of different lengths or shapes, improving versatility.

[0113] In an embodiment, the bottom of the side roof panel 924 at the longitudinal front end and tail end is respectively provided with a partition wall mounting portion 9241 extending outward in the longitudinal direction; the partition wall mounting portion 9241 comprises a longitudinal connecting plate 92411 extending outward in the longitudinal direction of the side roof panel 924 and a partition wall mounting plate 92412 located on the outer side of the longitudinal connecting plate 92411 in the transverse direction.

[0114] In order to realize the connection between the side roof panel 924 and the partition wall, the partition wall mounting portion 9241 is arranged at the bottom of the side roof panel 924 at the longitudinal front end and tail end, which is used to connect the partition wall structure (such as the partition between the driver's room and the passenger area, the advertising light box support, etc.) in the vehicle compartment, provides an installation interface for other structures in the vehicle compartment, improves the space utilization, and makes the roof panel and the partition wall structure form a unified and coordinated whole, thereby improving the visual effect; the partition wall mounting portion 9241 is composed of two main parts: the longitudinal connecting plate 92411 and the partition wall mounting plate 92412; the longitudinal connecting plate 92411 extends forward or backward from the bottom of the side roof panel 924; the partition wall mounting plate 92412 is at an angle (usually a right angle) with the longitudinal connecting plate 92411 and serves as a mounting surface; the double-plate structure improves the bearing capacity and prevents loosening caused by vibration. The longitudinal connecting plate 92411 extends along the length direction of the vehicle body (i.e. from front to back or from back to front), and the load can be effectively transmitted to the main structure of the side roof panel 924 in the longitudinal direction; the structural deformation caused by uneven transverse stress is avoided.

[0115] The partition wall mounting plate 92412 is arranged on the outer side of the longitudinal connecting plate 92411, i.e. away from the center line of the vehicle body, and the mounting plate faces outward, which is convenient for the operator to install the partition wall structure; the installation structure is arranged on the outer side of the side roof panel 924, which does not affect the passing space in the vehicle; the installation structure is prevented from being exposed in the passenger's visual range, and the vehicle compartment is kept clean.

[0116] In one aspect, the hanging beam base 921 comprises a C-shaped mounting frame 9211, which comprises a top plate, a bottom plate and a side plate located between the top plate and the bottom plate; the top plate is provided with a first strip-shaped hole arranged in the transverse direction, which is used for detachable fixed connection with the roof C-shaped groove of the vehicle body; the bottom plate is provided with a second strip-shaped hole arranged in the transverse direction, which is fixed with the first sliding mounting cavity 9222 through a threaded fastener;

[0117] and a reinforcing rib plate 9212 located on one side of the C-shaped mounting frame 9211 in the width direction and fixed with the top plate, the bottom plate and the side plate respectively.

[0118] The C-shaped structure has good bending resistance and is suitable for bearing the load from the roof system. A transversely extending strip hole (i.e., a long circular hole) is processed on the roof of the C-shaped mounting frame 9211. The hole is used for passing through a fastener such as a bolt and is fixed with the C-shaped groove on the top of the vehicle body. The strip hole allows a certain range of front and rear adjustment to adapt to different vehicle models or assembly errors. It is convenient for later maintenance or replacement of the roof structure. It is adapted to the standard C-shaped groove structure of the vehicle body and improves the universality. A transverse strip hole is also provided on the bottom plate of the C-shaped mounting frame 9211. The hole is used to be connected with the first sliding mounting cavity 9222 in the roof profile 922 by means of a screw. The roof profile 922 can be quickly positioned and fixed on the suspension beam base 921 through the sliding mounting cavity. The connection can be completed without welding, which conforms to the modern trend of lightweight and modularization of rail transit. A reinforcing rib plate 9212 is additionally installed on the side (width direction side) of the C-shaped mounting frame 9211. The rib plate is fixedly connected with the roof, the bottom plate and the side plate to form an integral structure. The C-shaped frame is prevented from deforming due to excessive stress. It can bear greater static and dynamic load. Fatigue damage is reduced and it is suitable for long-term vibration environment. It is suitable for rail transit scenes with extremely high safety requirements.

[0119] The above-mentioned passenger compartment roof effectively avoids the pressure line structure used for installing the passenger compartment roof on the existing passenger car, thereby avoiding the negative impact of the pressure line on the appearance and subsequent maintenance work. The middle roof 925 is hung in a folding manner, and each one can be opened separately. The side roof 924 is pressed in a manner, and at most two side roofs 924 can be disassembled to complete the maintenance of the side top part. This design conveniently realizes the demand for maintenance of where there is a problem, avoids disassembling irrelevant roof structures, improves the maintenance efficiency, and saves time and cost.

[0120] The application also provides a rail vehicle interior structure, comprising a plurality of vehicle body air supply channels arranged along the longitudinal direction of the vehicle body and the passenger compartment roof for a rail vehicle of any one of the above-mentioned embodiments.

[0121] The transverse sides of any one of the vehicle body air supply channels are respectively integrated with a plurality of suspension beam bases of the passenger compartment roof for a rail vehicle.

[0122] Although the preferred embodiments of the application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the application.

[0123] Obviously, those skilled in the art can make various modifications and variations to the application without departing from the spirit and scope of the application. Thus, if these modifications and variations of the application fall within the scope of the claims of the application and their equivalent technologies, the application also intends to include these modifications and variations.

Claims

1. A water injection device, characterized by The application relates to a water injection device for a passenger compartment of a vehicle. The water injection device comprises a vehicle-under water injection pipeline and a water injection port, wherein the vehicle-under water injection pipeline is communicated with a water injection pipeline on a vehicle body, and the water injection port is located at one end of the vehicle-under water injection pipeline away from the vehicle body; a protective cover comprising a protective cover body and a protective cover cover, wherein the protective cover cover is arranged on the protective cover body in an openable and closable mode, and the protective cover body and the protective cover cover form a closed cavity, and the water injection port is located in the protective cover; and a heating device located on the protective cover body and used for heating the water injection port in the protective cover. The protective cover body is provided with a pipeline mounting hole, and the pipeline mounting hole is located on a bottom wall of the protective cover body and penetrates through the bottom wall of the protective cover body. The vehicle-under water injection pipeline is sleeved in the pipeline mounting hole.

2. The water injection device of claim 1, wherein One end of the protective cover cover is hingedly arranged on the protective cover body. The heating device comprises a heating power supply interface used for being connected with a power supply wire on the vehicle body and a heating element arranged on an inner wall of the protective cover body and connected with the heating power supply interface.

3. The water injection device of claim 1, wherein The heating device further comprises a pipeline heating element located outside the protective cover body and extending along the vehicle-under water injection pipeline, and the pipeline heating element is connected with the heating power supply interface.

4. The water injection device of claim 1, wherein The pipeline fixing device is fixed at the top end of the vehicle body, and the vehicle-under water injection pipeline is located on the pipeline fixing device and is fixed with the vehicle body through the pipeline fixing device. The pipeline heating element comprises a heating cover plate and a heating extension element, wherein the heating cover plate is detachably fixedly connected with the bottom of the protective cover body, and the heating extension element is arranged along the length direction of the vehicle-under water injection pipeline. The heating element is a resistance wire or an electric heating film.

5. The water injection device of claim 4, wherein 9. A passenger compartment of a vehicle, comprising a vehicle body, and a water injection pipeline arranged in the interior of the vehicle body, wherein the water injection pipeline is connected with the water injection device according to any one of claims 1-8. The application relates to a passenger compartment of a vehicle.

6. The water injection device of claim 1, wherein ​ ​ 7. The water injection device of claim 5, wherein ​ ​ 8. The water injection device of claim 1, wherein, ​ ​ ​ 10. A rail vehicle, characterized by ​

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