Cold-proof system for EMU maintenance workshop

Abstract

The application discloses a cold-proof system for a motor train unit maintenance workshop, which is arranged at a door pocket position of a workshop door and comprises a door frame and a soft curtain connected to the top of the door frame. The door frame is connected to both sides of a maintenance guide rail. A motor train to be maintained is placed on the maintenance guide rail. The side of the door frame close to the motor train is arranged in a shape that is matched with the side surface of the motor train body. The door frame is spaced apart from the side surface of the motor train body by a first distance D1. A brush is arranged on the side of the door frame close to the motor train. The brush extends towards the motor train. The length of the brush is a second distance D2, and D2>D1. The bottom of the soft curtain is in contact with the roof of the motor train. The cold-proof system for the motor train unit maintenance workshop can effectively prevent cold wind from the outside from entering the maintenance workshop through the side surface and the roof of the motor train body, ensure the working temperature requirement of the staff, optimize the working environment and be favorable for improving the efficiency of the maintenance work.

Description

Technical Field

[0001] This invention relates to the field of high-speed train maintenance technology, and in particular to a cold-proof system for high-speed train maintenance workshops. Background Technology

[0002] In the EMU maintenance workshop, both the rolling stock and maintenance positions are fixed. During rolling stock and maintenance, the train cannot be detached; it must be moved in stages while the entire train is connected to move the rolling stock and maintenance positions to their designated locations. Due to the limited length of the maintenance workshop, the workshop doors must be kept open during operations. In winter, when temperatures are low, keeping the workshop doors open allows a large amount of cold air to enter, causing the interior temperature to drop significantly, creating a harsh working environment for employees and impacting production. Summary of the Invention

[0003] In view of this, the present invention provides a cold-proof system for EMU maintenance workshops, which effectively prevents cold air from entering the maintenance workshop through the sides and top of the train body, ensures the working temperature needs of employees, optimizes the working environment, and helps to improve the efficiency of maintenance operations.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A cold-proof system for a high-speed train maintenance workshop is installed at the vestibule of the workshop entrance. It includes a gantry and a soft curtain connected to the top of the gantry. The gantry spans both sides of a maintenance guide rail, on which a high-speed train to be maintained is placed. The side of the gantry closest to the high-speed train is shaped to conform to the side of the train's body. The gantry is spaced a first distance D1 from the side of the train's body. A brush is installed on the side of the gantry closest to the high-speed train, extending towards the train. The length of the brush is a second distance D2, where D2 > D1. The bottom of the soft curtain contacts the roof of the high-speed train.

[0006] Optionally, a first air curtain machine is provided on the side of the gantry near the workshop gate. At least two first air curtain machines are provided, and multiple first air curtain machines are distributed on both sides of the train. The first air curtain machines are used to blow hot air onto one side of the train.

[0007] Optionally, the air outlet of the first air curtain machine is positioned toward the gap between the gantry and the side of the vehicle body.

[0008] Optionally, the soft curtain includes a plurality of strip soft strips arranged along the width direction of the motor vehicle, the length of the soft curtain is greater than the width of the motor vehicle, and both ends extend to the gantry position;

[0009] The soft curtains on each gantry are provided in multiple layers, and the multiple layers of soft curtains are arranged along the direction of movement of the train.

[0010] Optionally, the soft curtain is connected to the door frame via a roller blind, and the soft curtain is connected to the bottom end of the roller blind.

[0011] Optionally, it also includes a second air curtain machine, which is disposed on the side of the gantry near the workshop door, and the second air curtain machine is disposed on one side of the gantry;

[0012] The maintenance guide rail includes two parallel tracks, and a hot air outlet is provided on the ground between the two tracks. The air outlet of the second air curtain machine is connected to the hot air outlet through a guide pipe.

[0013] The hot gas outlet is flush with the ground.

[0014] Optionally, the hot gas outlet is an opening located at the top of the hot gas box, the hot gas box is at least partially buried in the ground, the guide pipe is connected to the hot gas box, a drain outlet is provided near the bottom of the hot gas box, and the height of the position where the guide pipe is connected to the hot gas box is higher than the height of the drain outlet.

[0015] Optionally, the dimension of the hot gas outlet along the spacing direction of the two tracks corresponds to the spacing distance between the two tracks;

[0016] A shielding plate is provided at the hot gas outlet, and the shielding plate is provided with evenly distributed elongated holes or mesh holes.

[0017] Optionally, a third air curtain machine is installed at the top of the vestibule, and the air outlet of the third air curtain machine corresponds to the roof of the train.

[0018] Optionally, the range of D2-D1 is 30mm-60mm;

[0019] The gantry is provided in several units, which are arranged in parallel and spaced apart. Each gantry corresponds to a type of motor vehicle. Each gantry is provided with a brush and a soft curtain.

[0020] As can be seen from the above technical solution, the cold-proof system for EMU maintenance workshops provided by this invention, by setting a gantry at the entrance of the maintenance workshop, and shaping the side of the gantry closest to the EMU to conform to the shape of the EMU body side, and simultaneously installing brushes on the side of the gantry closest to the EMU, the length of which is greater than the distance between the gantry and the side of the EMU body, thus forming a brush seal between the side of the EMU body and the gantry, preventing cold air from entering the maintenance workshop through the gap between the side of the EMU body and the gantry. At the same time, a soft curtain is installed at the top of the gantry, with its bottom contacting the roof of the EMU, thereby reducing the amount of cold air entering the maintenance workshop from the top of the EMU. The cold-proof system for EMU maintenance workshops of this invention effectively prevents cold air from entering the maintenance workshop through the side and top of the EMU body, greatly reducing the amount of cold air entering the maintenance workshop, reducing the impact on the workshop temperature, ensuring the working temperature needs of employees, optimizing the working environment, and improving the efficiency of maintenance operations. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the cold protection system for a high-speed train maintenance workshop provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the spacing structure between the gantry and the side of the train body provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the gantry after the brush is installed, according to an embodiment of the present invention.

[0025] Figure 4 A cross-sectional view of the connection position between the hot air box and the guide pipe provided in an embodiment of the present invention;

[0026] Figure 5 This is a top view of a hot air box provided in an embodiment of the present invention;

[0027] Figure 6 A top view of the hot air box provided in another embodiment of the present invention;

[0028] Figure 7 for Figure 5 Or, a schematic diagram of the structure of the hot air box without the shielding plate provided in embodiment 6;

[0029] Figure 8 This is a top view of the hot air box provided in the third embodiment of the present invention.

[0030] in:

[0031] 1. Gantry; 101. Column; 102. Top plate; 2. Soft curtain; 3. Brush; 4. First air curtain machine; 5. Inspection guide rail; 6. Second air curtain machine; 7. Guide pipe; 8. Train; 9. Hot air box; 901. Drain outlet; 902. Shielding plate; 903. Hot air nozzle. Detailed Implementation

[0032] This invention discloses a cold-proof system for EMU maintenance workshops, which effectively prevents cold air from entering the maintenance workshop through the sides and top of the train body, ensuring the working temperature needs of employees, optimizing the working environment, and improving the efficiency of maintenance operations.

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 8 The present invention discloses a cold-proof system for a high-speed train maintenance workshop, which is installed at the vestibule of the workshop entrance. It includes a gantry 1 and a soft curtain 2 connected to the top of the gantry 1. The gantry 1 spans both sides of a maintenance guide rail 5, on which a high-speed train 8 to be maintained is placed. The side of the gantry 1 closest to the high-speed train 8 is shaped to conform to the side of the train body. The gantry 1 is spaced from the side of the train body by a first distance D1. A brush 3 is provided on the side of the gantry 1 closest to the high-speed train 8, extending towards the train 8. The length of the brush 3 is a second distance D2, where D2 > D1. This ensures that the ends of the brush bristles furthest from the gantry 1 abut against the side of the train body, facilitating a seal. Simultaneously, due to the flexibility of the bristles, it does not impede the movement of the high-speed train 8 and does not damage the side of the train body. The bottom of the soft curtain 2 contacts the roof of the high-speed train 8.

[0035] The gantry 1 includes two columns 101 located on either side of the maintenance guide rail 5. A top plate 102 is mounted on top of each column 101 to facilitate the installation of the soft curtain 2. Understandably, the side of the column 101 closest to the train 8 is shaped to conform to the side of the train 8's body. The brush 3 is installed on the side of the column 101 closest to the train 8. The column 101 may or may not be connected to the top plate 102.

[0036] The cold-proof system for EMU maintenance workshops of the present invention features a gantry 1 installed at the entrance of the maintenance workshop. The side of the gantry 1 closest to the EMU 8 is shaped to conform to the side of the vehicle body. Simultaneously, a brush 3 is installed on the side of the gantry 1 closest to the EMU 8, with the length of the brush 3 exceeding the distance between the gantry 1 and the side of the EMU 8. This creates a seal between the side of the EMU 8 and the gantry 1, preventing cold air from entering the maintenance workshop through the gap between the side of the vehicle body and the gantry 1. Furthermore, a soft curtain 2 is installed at the top of the gantry 1, with its bottom contacting the roof of the EMU 8, further reducing the amount of cold air entering the maintenance workshop from the top of the EMU 8. This cold-proof system for EMU maintenance workshops effectively prevents cold air from entering the maintenance workshop through the side and top of the vehicle body, significantly reducing the amount of cold air entering the workshop, minimizing its impact on the workshop temperature, ensuring the working temperature needs of employees, optimizing the working environment, and improving the efficiency of maintenance operations.

[0037] To further improve the cold-weather protection, a first air curtain machine 4 is installed on the side of the gantry 1 closest to the workshop door. At least two first air curtain machines 4 are installed, with multiple first air curtain machines 4 distributed on both sides of the moving train 8, i.e., on both sides of the maintenance guide rail 5. The first air curtain machines 4 are used to blow hot air onto one side of the moving train 8, thereby forming a hot air curtain to prevent cold air from the outside from entering the maintenance workshop through the side of the moving train 8. The gantry 1 is located on the side closest to the workshop door, i.e., inside the vestibule.

[0038] Furthermore, the air outlet of the first air curtain machine 4 is positioned towards the gap between the gantry 1 and the side of the vehicle body, that is, the hot air blown out by the first air curtain machine 4 is directed towards the gap between the gantry 1 and the side of the vehicle body, thereby preventing cold air from entering the maintenance workshop through the gap between the gantry 1 and the side of the vehicle body.

[0039] To improve the conformity of the bottom of the soft curtain 2 to the roof of the train 8 and prevent the structure or devices of the roof from affecting the fit between the bottom of the soft curtain 2 and the roof, thereby improving the sealing performance at the contact point, the soft curtain 2 includes multiple strip-shaped soft strips arranged along the width direction of the train 8. The length of the soft curtain 2 is greater than the width of the train 8, and both ends of the soft curtain 2 extend to the position of the column 101 of the gantry 1, thereby improving the sealing performance between the soft curtain 2 and the column 101 and reducing the entry of cold air into the maintenance workshop from the position of the soft curtain 2. Understandably, to further improve the performance of blocking outside cold air, the soft curtain 2 on each gantry 1 is provided with multiple layers. The multiple layers of soft curtain 2 are arranged along the moving direction of the train 8, thereby improving the sealing performance of the roof. The moving direction of the train 8 is perpendicular to the width direction of the train 8.

[0040] To facilitate adjustment of the bottom height of the soft curtain 2, the soft curtain 2 is connected to the top plate 102 of the door frame 1 via a roller shutter, and the soft curtain 2 is connected to the bottom end of the roller shutter. The roller shutter is a conventional roller shutter door structure, which will not be described in detail here.

[0041] To address the issue of cold air entering the maintenance workshop due to the lack of shelter under the EMU 8's body, the cold-proof system for EMU maintenance workshops of this invention also includes a second air curtain machine 6, such as... Figure 1 As shown, the second air curtain 6 is installed on the side of the gantry 1 closest to the workshop door. To avoid affecting the movement of the train 8, the second air curtain 6 is installed on one side of the gantry 1. The maintenance guide rail 5 includes two parallel rails, such as... Figure 1 As shown, a hot air outlet 903 is provided on the ground A between the two tracks, blowing hot air towards the bottom of the car body. To facilitate the delivery of hot air from the second air curtain machine 6 to the hot air outlet 903, the outlet of the second air curtain machine 6 is connected to the hot air outlet 903 via a guide pipe 7, allowing the hot air blown out by the second air curtain machine 6 to exit from the hot air outlet 903, forming a sealed air curtain from the ground A to the bottom of the car body, preventing cold air from entering the maintenance workshop through the bottom of the car body. To improve the passability of the train 8, the hot air outlet 903 is flush with the ground A to avoid affecting the structure of the bottom of the car body. Preferably, the hot air outlet 903 is flush with the ground A.

[0042] To facilitate the delivery of hot air to the hot air outlet 903, the hot air outlet 903 is an opening located at the top of the hot air box 9. The hot air box 9 is at least partially buried in the ground A; preferably, the entire hot air box 9 is buried in the ground A, with the top of the hot air box 9 flush with the ground A. Figure 4 As shown, Figure 4 This is a cross-sectional view of the hot air chamber 9 along a direction perpendicular to ground A. The cross-sectional view is taken at the location through the guide pipe 7 to facilitate viewing the connection between the guide pipe 7 and the hot air chamber 9. The guide pipe 7 connects to the side wall of the hot air chamber 9. When the top of the hot air chamber 9 is flush with ground A, the guide pipe 7 is also buried below ground A. By installing the hot air chamber 9, it is beneficial to prevent dust and other debris, or rainwater and condensate entering through the hot air outlet 903, from directly entering the guide pipe 7, ensuring the cleanliness and unobstructed flow of the guide pipe 7 and preventing water damage to the motor. To drain rainwater or condensate from the hot air chamber 9, a drain outlet 901 is provided near the bottom of the hot air chamber 9. The height of the connection point between the guide pipe 7 and the hot air chamber 9 is higher than the height of the drain outlet 901.

[0043] To improve the reliability of isolating external cold air, the dimension of the hot gas outlet 903 along the spacing direction of the two tracks corresponds to the spacing distance between the two tracks. To reduce debris entering the chamber of the hot gas box 9, a shielding plate 902 is provided at the hot gas outlet 903. The shielding plate 902 has evenly distributed elongated holes, such as... Figure 5 As shown, multiple elongated holes are arranged sequentially. The shielding plate 902 may also have evenly distributed mesh holes, such as... Figure 6 As shown. Other shapes of holes can also be provided on the shielding plate 902; there are no limitations here, as long as they facilitate airflow. For example... Figure 7 As shown, the hot gas outlet 903 can occupy only a portion of the top surface of the hot gas box 9, or it can occupy the entire top surface of the hot gas box 9, such as... Figure 8 As shown, the hot gas outlet 903 is connected to a mesh-structured shielding plate 902. Figure 5 , Figure 6 and Figure 8 All are top-view structural schematic diagrams of the hot air box 9.

[0044] To improve the insulation performance of the top of the train 8 from cold air, a third air curtain machine (not shown in the figure) is installed on the top of the vestibule, and the air outlet of the third air curtain machine corresponds to the top of the train 8. Preferably, the third air curtain machine is arranged corresponding to the hot air outlet 903. The third air curtain machine is located on the side of the gantry 1 near the workshop door, that is, inside the vestibule.

[0045] To improve the sealing performance between the brush 3 and the side of the car body, the range of D2-D1 is 30mm-60mm. Setting D2-D1 within this range ensures that the brush bristles of the brush 3 reliably adhere to the outer side of the car body, avoids excessively long bristles from scratching the car body, and saves costs. In one specific embodiment, the side of the gantry 1 is conformally positioned to the corresponding outer side of the car body, with a distance of approximately 100mm between them. The bristles of the brush 3 are 150mm long, contacting the car body to seal the gap between the car body and the gantry 1, reducing the entry of cold external air into the workshop while preventing frequent movement of the train from scratching the car body. Two rows of brushes 3 are arranged on each gantry 1.

[0046] To accommodate vehicle body maintenance for different models, several masts 1 can be installed, spaced parallel to each other. Each mast 1 corresponds to a specific model of the motor vehicle 8. Each mast 1 is equipped with a brush 3 and a soft curtain 2. When one type of electric sliding door is closed, the edge of the door precisely matches the corresponding left and right outer contours of the vehicle body, such as... Figure 1 As shown, there are three gantry 1s, and the three gantry 1s share a set of air curtain machine system consisting of the first air curtain machine 4, the second air curtain machine 6 and the third air curtain machine.

[0047] The cold-proof system for EMU maintenance workshops of the present invention reduces the intrusion of cold air during EMU maintenance by installing brushes 3, soft curtains 2, and air curtains that are installed according to the shape of the car body. A gantry 1 is installed at the entrance of the vestibule inside the workshop, replacing the original vestibule door. A retractable soft curtain 2 is installed in the gap between the car roof and the doorway. The soft curtain 2 has multiple strips of soft material to allow irregular objects such as the pantograph on the EMU roof to pass through. After the EMU pantograph enters the workshop, the soft curtain 2 lowers, sealing the gap in the car roof. Hot air curtain devices are added to the left and right sides and the top and bottom four directions of the EMU body. The hot air curtains on the sides blow air towards the gap between the gantry 1 and the car body, while the hot air curtains at the top and bottom blow air towards the roof and bottom of the car body, respectively, further enhancing the cold-proof effect. A second air curtain 6, which provides hot air to the bottom of the vehicle body, is installed on the side of the vehicle body. The hot air is guided to the hot air box 9 at the bottom of the vehicle body through the guide pipe 7. The hot air is sprayed onto the bottom of the vehicle body through the hot air nozzle 903 at the top of the hot air box 9. A drain outlet 901 is provided near the bottom of the hot air box 9. The drain outlet 901 drains the rainwater flowing into the hot air box 9 and the condensate melted at the bottom of the vehicle body to prevent water from entering the motor and causing a short circuit.

[0048] In the description of this solution, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold-proof system for a high-speed train maintenance workshop, installed in the vestibule of the workshop entrance, characterized in that, The system includes a gantry and a soft curtain connected to the top of the gantry. The gantry spans both sides of a maintenance guide rail, on which a train to be maintained is placed. The side of the gantry closest to the train is shaped to conform to the side of the train's body. The gantry is spaced a first distance D1 from the side of the train's body. A brush is provided on the side of the gantry closest to the train, extending towards the train. The length of the brush is a second distance D2, where D2 > D1. The bottom of the soft curtain contacts the roof of the train.

2. The cold-proof system for EMU maintenance workshops according to claim 1, characterized in that, A first air curtain machine is installed on the side of the gantry near the workshop gate. There are at least two first air curtain machines, and multiple first air curtain machines are installed on both sides of the train. The first air curtain machines are used to blow hot air onto one side of the train.

3. The cold-proof system for EMU maintenance workshops according to claim 2, characterized in that, The air outlet of the first air curtain machine is positioned toward the gap between the gantry and the side of the vehicle body.

4. The cold-proof system for EMU maintenance workshops according to any one of claims 1-3, characterized in that, The soft curtain includes multiple strips of soft material arranged along the width direction of the train. The length of the soft curtain is greater than the width of the train, and both ends extend to the gantry position. The soft curtains on each gantry are provided in multiple layers, and the multiple layers of soft curtains are arranged along the direction of movement of the train.

5. The cold-proof system for EMU maintenance workshops according to claim 4, characterized in that, The soft curtain is connected to the door frame via a roller blind, and the soft curtain is connected to the bottom end of the roller blind.

6. The cold-proof system for EMU maintenance workshops according to claim 1, characterized in that, It also includes a second air curtain machine, which is installed on the side of the gantry near the workshop door, and the second air curtain machine is installed on one side of the gantry. The maintenance guide rail includes two parallel tracks, and a hot air outlet is provided on the ground between the two tracks. The air outlet of the second air curtain machine is connected to the hot air outlet through a guide pipe. The hot gas outlet is flush with the ground.

7. The cold-proof system for EMU maintenance workshops according to claim 6, characterized in that, The hot gas outlet is an opening located at the top of the hot gas box. The hot gas box is at least partially buried in the ground. The guide pipe is connected to the hot gas box. A drain outlet is provided near the bottom of the hot gas box. The height of the position where the guide pipe is connected to the hot gas box is higher than the height of the drain outlet.

8. The cold-proof system for EMU maintenance workshops according to claim 7, characterized in that, The dimension of the hot gas outlet along the spacing direction of the two tracks corresponds to the spacing distance between the two tracks; A shielding plate is provided at the hot gas outlet, and the shielding plate is provided with evenly distributed elongated holes or mesh holes.

9. The cold-proof system for EMU maintenance workshops according to any one of claims 1-3, characterized in that, A third air curtain machine is installed at the top of the vestibule, and the air outlet of the third air curtain machine corresponds to the roof of the train.

10. The cold-proof system for EMU maintenance workshops according to claim 1, characterized in that, The range of D2-D1 is 30mm-60mm; The gantry is provided in several units, which are arranged in parallel and spaced apart. Each gantry corresponds to a type of motor vehicle. Each gantry is provided with a brush and a soft curtain.

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