Roof ventilating and filtering device for railway vehicle

Abstract

The invention relates to the technical field of railway vehicles, in particular to a roof ventilation filtering device for a railway vehicle, which comprises a filtering device main body, the bottom of a shutter air guide blade is fixedly connected with a filtering device mounting flange, and two sides of the filtering device main body are fixedly connected with chutes; the filter screen is arranged in the sliding groove, and a pressing plate is arranged at the top of the filter screen; and the shutter air guide blades are fixedly mounted in the filtering device main body. The cross section of the car roof filtering device is trapezoidal, and the two sides of the car roof filtering device are obliquely arranged, so that the area of an air inlet is increased, the resistance of the filtering device is reduced, enough ventilation quantity is guaranteed, impurities such as dust, fragments and catkins, ice and snow can descend to the two sides under the action of gravity, and the probability that the air inlet of a cooling tower is blocked due to deposition is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, and in particular to a roof ventilation and filtering device for rail vehicles. Background Art

[0002] AC transmission electric locomotives are equipped with cooling towers (ventilation mode: air inlet on the roof and air outlet under the locomotive) to cool the main transformer, main converter, and traction motor. To prevent the temperature rise of these important high-voltage equipment from exceeding the allowable value and ensure the reliable operation of the locomotive, the cooling tower must be kept in normal operation.

[0003] At present, in order to prevent impurities such as dust, debris, and catkins from being sucked into the cooling tower and clogging the radiator, a horizontal filter is installed at the air inlet of the roof cooling tower, which can effectively prevent the converter water temperature and transformer oil temperature from being too high, and ensure the reliable operation of the locomotive;

[0004] However, with the development of electric locomotives, more and more locomotives are deployed in cold regions such as the northwest and northeast. When encountering cold weather such as rain and snow, the rain and snow will freeze and block the horizontal filter on the roof of the cooling tower, making it difficult to ensure sufficient ventilation, resulting in freezing of the cooling tower fan blades, and the cooling tower cannot work normally, thus affecting the reliable operation of the locomotive. Summary of the invention

[0005] The present invention provides a roof ventilation and filtering device for a rail vehicle, which is used to solve the problems raised by the above-mentioned background technology.

[0006] The present invention provides a roof ventilation and filtering device for a rail vehicle, comprising:

[0007] The filter device body, the bottom of the louvered air guide piece is fixedly connected with a filter device mounting flange, and both sides of the filter device body are fixedly connected with slide grooves;

[0008] A filter screen, the filter screen is arranged inside the chute, and a pressing plate is arranged on the top of the filter screen;

[0009] The louver air guide plate is fixedly installed inside the main body of the filter device.

[0010] Preferably, the filter device body is fixedly connected to the vehicle body via the filter device mounting flange.

[0011] Preferably, a lifting lug is fixedly mounted on the top of the filter device body, and the lifting lug is used for lifting the filter device body.

[0012] Preferably, two groups of the slide grooves are provided, the two groups of the slide grooves are symmetrically arranged, the slide grooves are inclinedly arranged, and the two groups of the slide grooves and the main body of the filter device form a frame with a trapezoidal cross-section.

[0013] Preferably, a filter mounting flange is fixedly provided at the bottom of the filter, and the filter mounting flange is arranged inside the slide groove.

[0014] Preferably, two ends of the pressing plate are respectively pressed on the top ends of the filter nets on both sides of the filter device body.

[0015] Preferably, the pressure plate is fixedly connected to the filter device body by bolts.

[0016] Preferably, the pressing plate is used to fix the filter screen inside the chute.

[0017] Preferably, the louver air guide is arranged below the filter screen.

[0018] Preferably, the filter screen is connected to the interior of the filter device body through the louver air guide plate.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The cross-sectional shape of the roof filter device of the present invention is a trapezoid, and the two sides are inclined, so as to increase the air inlet area, reduce the resistance of the filter device, and ensure sufficient ventilation. At the same time, impurities such as dust, debris, catkins, ice, snow, etc. can fall to both sides by gravity, reducing the probability of deposition blocking the cooling tower air inlet.

[0021] 2. By setting air guides at a certain angle, the air flow is guided to reduce resistance. At the same time, rain and snow can flow to both sides through the louvered air guides by gravity, avoiding the problem of rain and snow flowing to the cooling tower fan blades and freezing.

[0022] 3. The filter is fixed in the slide groove by the pressure plate. When inspecting and maintaining the roof ventilation filter device, you only need to remove the pressure plate to take out the filters on both sides. To replace the filter, you only need to replace two filters. There is no need to replace the entire roof ventilation filter device, which reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0024] Figure 1 is a schematic top view of a roof ventilation and filtering device for a rail vehicle according to the present invention;

[0025] Figure 2 is a front view schematic diagram of a roof ventilation and filtering device for a rail vehicle according to the present invention;

[0026] Figure 3 It is a side cross-sectional schematic diagram of a roof ventilation and filtering device for a rail vehicle according to the present invention;

[0027] Figure 4 It is a schematic diagram of the installation of a pressure plate of a roof ventilation filter device for a rail vehicle of the present invention;

[0028] Reference numerals:

[0029] Filter device body 1, filter device mounting flange 11, lifting lug 12, slide slot 13;

[0030] Filter 2, filter mounting flange 21;

[0031] Louver air guide 3;

[0032] Press plate 4. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0034] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0035] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0038] The present invention provides a roof ventilation and filtering device for a rail vehicle, comprising:

[0039] The filter device body 1, the bottom of the louver air guide plate 3 is fixedly connected with a filter device mounting flange 11, the filter device body 1 is fixedly connected to the vehicle body through the filter device mounting flange 11, and the top of the filter device body 1 is fixedly installed with a lifting ear 12, and the lifting ear 12 is used to lift the filter device body 1;

[0040] The two sides of the filter device body 1 are fixedly connected with slide grooves 13, and the slide grooves 13 are provided with two groups, the two groups of slide grooves 13 are symmetrically arranged, and the slide grooves 13 are inclinedly arranged. The two groups of slide grooves 13 and the filter device body 1 form a frame with a trapezoidal cross section;

[0041] A filter screen 2, the filter screen 2 is arranged inside the chute 13, a filter screen mounting flange 21 is fixedly arranged at the bottom of the filter screen 2, and the filter screen mounting flange 21 is arranged inside the chute 13;

[0042] A pressing plate 4 is provided on the top of the filter screen 2, and the two ends of the pressing plate 4 are respectively pressed on the top of the filter screen 2 on both sides of the filter device body 1, and the pressing plate 4 is fixedly connected to the filter device body 1 by bolts, and the pressing plate 4 is used to fix the filter screen 2 inside the chute 13;

[0043] The louver air guide piece 3 is fixedly installed inside the filter device body 1 , and the louver air guide piece 3 is arranged below the filter screen 2 , and the filter screen 2 is connected to the inside of the filter device body 1 through the louver air guide piece 3 .

[0044] Embodiment 1:

[0045] Reference Figure 1 As shown, Figure 1 is a schematic top view of a roof ventilation and filtering device for a rail vehicle according to the present invention;

[0046] Reference Figure 2 As shown, Figure 2 is a front view schematic diagram of a roof ventilation and filtering device for a rail vehicle according to the present invention;

[0047] Reference Figure 3 As shown, Figure 3 It is a side cross-sectional schematic diagram of a roof ventilation and filtering device for a rail vehicle according to the present invention;

[0048] Reference Figure 4 As shown, Figure 4 It is a schematic diagram of the installation of a pressure plate of a roof ventilation filter device for a rail vehicle of the present invention;

[0049] Reference Figure 1-Figure 4 As shown, a roof ventilation and filtering device for a rail vehicle comprises:

[0050] Filter device body 1, filter screen 2, louver air guide 3, pressing plate 4;

[0051] The two sides of the filter device body 1 are fixedly provided with a slide groove 13, the shutter air guide plate 3 is arranged below the slide groove 13, the filter screen 2 is installed inside the slide groove 13, and the two ends of the pressing plate 4 are respectively pressed on the top of the filter screen 2 on both sides, so as to fix the filter screen 2 inside the slide groove 13;

[0052] The filter screen 2 is tilted and arranged on both sides of the filter device body 1 through the slide slot 13, so that the overall cross-section of the filter device is trapezoidal. The wind enters the interior of the filter device body 1 through the filter screen 2 and the louvered air guide plate 3 on both sides. The area of ​​the tilted filter screen 2 is larger than that of the horizontal setting, thereby increasing the air intake effect and ensuring sufficient ventilation.

[0053] The filter screen 2 is tilted on both sides. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter screen 2, the impurities and ice and snow fall to both sides along the surface of the filter screen 2 due to gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter screen 2 and causing blockage;

[0054] After passing through the filter 2, the airflow passes through the louver air guide 3, and the louver air guide 3 guides the flow of air so that the air is blown in a specified direction, thereby reducing air resistance and improving airflow utilization.

[0055] At the same time, water infiltrated by rain, snow, etc. flows to the bottom of both sides of the filter device body 1 through the guide of the louver air guide plate 3 under the action of gravity, so as to prevent the infiltrated water from freezing the cooling tower fan blades;

[0056] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide slot 13, then press the pressing plate 4 on the top of the filter screen 2, and fix the pressing plate 4 to the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide slot 13;

[0057] When the filter screen 2 needs to be cleaned, the filter screen 2 can be taken out from the interior of the slide groove 13 by simply removing the pressing plate 4, thereby facilitating the cleaning of the filter screen 2 and avoiding a cumbersome disassembly process.

[0058] Embodiment 2:

[0059] Referring to the first embodiment, the two sides of the filter device body 1 are fixedly provided with slide grooves 13, the louver air guide plate 3 is arranged below the slide grooves 13, the filter screen 2 is installed inside the slide grooves 13, and the two ends of the pressing plate 4 are respectively pressed against the top ends of the filter screens 2 on both sides, thereby fixing the filter screen 2 inside the slide grooves 13. On the basis of the first embodiment, in this embodiment, the two ends of the pressing plate 4 are passed through the grooves at the bending part of the sheet metal. When the two ends of the pressing plate 4 are pressed against the top end of the filter screen, the top end of the filter screen is embedded in the grooves at the two ends of the pressing plate 4, so that the pressing plate 4 is embedded with the top end of the filter screen 2, further increasing the stability of the installation of the filter screen 2;

[0060] The filter screen 2 is tilted and arranged on both sides of the filter device body 1 through the slide groove 13. On the basis of the first embodiment, in this embodiment, an arc-shaped groove is arranged inside the slide groove 13, and an arc-shaped protrusion is arranged at the bottom of the filter screen 2. When the arc-shaped protrusion at the bottom of the filter screen 2 sinks into the arc-shaped groove inside the slide groove 13, the filter screen 2 just reaches the installation position, so that it is convenient to determine the position of the filter screen 2 during the installation process, and the groove and the protrusion are arranged in an arc shape, that is, the positioning of the filter screen 2 can be achieved, and at the same time, the movement of the filter screen 2 during the assembly process is not affected, so that the overall cross-section of the filter device is trapezoidal, and the wind enters the interior of the filter device body 1 through the filter screens 2 and the louvered air guide plates 3 on both sides. The area of ​​the tilted filter screen 2 is larger than that of the horizontal setting, thereby increasing the air intake effect and ensuring sufficient ventilation.

[0061] The filter screen 2 is tilted on both sides. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter screen 2, the impurities and ice and snow fall to both sides along the surface of the filter screen 2 due to gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter screen 2 and causing blockage;

[0062] After passing through the filter 2, the airflow passes through the louver air guide 3, and the louver air guide 3 guides the flow of air so that the air is blown in a specified direction, thereby reducing air resistance and improving airflow utilization.

[0063] At the same time, water infiltrated by rain, snow, etc. flows to the bottom of both sides of the filter device body 1 through the guide of the louver air guide plate 3 under the action of gravity, so as to prevent the infiltrated water from freezing the cooling tower fan blades;

[0064] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide slot 13, then press the pressing plate 4 on the top of the filter screen 2, and fix the pressing plate 4 to the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide slot 13;

[0065] When the filter screen 2 needs to be cleaned, the filter screen 2 can be taken out from the inside of the chute 13 by simply removing the pressing plate 4, thereby facilitating the cleaning of the filter screen 2 and avoiding a cumbersome disassembly process;

[0066] On the basis of Example 1, in this embodiment, sleeves are fixedly welded at corresponding positions of the tops of the filter device body 1 and the filter screen 2. When installing the filter screen 2, the bottom of the filter screen mounting flange 21 is inserted into the interior of the slide groove 13, and the filter screen 2 and the sleeves at the tops of the filter device body 1 are aligned. At this time, a fixing rod is passed through the filter screen 2 and the sleeves at the tops of the filter device body 1, and the fixing rod is fixed, thereby achieving all-round fixation of the top of the filter screen 2. The remaining features are the same as those in Example 1.

[0067] Embodiment three:

[0068] Referring to the second embodiment, the two sides of the filter device body 1 are fixedly provided with the slide grooves 13, the louver air guide plate 3 is arranged below the slide grooves 13, the filter screen 2 is installed inside the slide grooves 13, and the two ends of the pressing plate 4 are respectively pressed on the top of the filter screen 2 on both sides, so that the filter screen 2 is fixed inside the slide grooves 13, and the two ends of the pressing plate 4 are passed through the grooves at the bending part of the sheet metal. When the two ends of the pressing plate 4 are pressed on the top of the filter screen, the top of the filter screen is embedded in the grooves at the two ends of the pressing plate 4, so that the pressing plate 4 is embedded with the top of the filter screen 2, and the stability of the installation of the filter screen 2 is further increased;

[0069] The filter screen 2 is tiltedly arranged on both sides of the filter device body 1 through the slide groove 13, an arc-shaped groove is arranged inside the slide groove 13, and an arc-shaped protrusion is arranged at the bottom of the filter screen 2. When the arc-shaped protrusion at the bottom of the filter screen 2 sinks into the arc-shaped groove inside the slide groove 13, the filter screen 2 just reaches the installation position, so that it is convenient to determine the position of the filter screen 2 during the installation process, and the groove and the protrusion are arranged in an arc shape, that is, the positioning of the filter screen 2 can be achieved, and at the same time, the movement of the filter screen 2 during the assembly process is not affected, so that the overall cross-section of the filter device is trapezoidal, and the wind enters the interior of the filter device body 1 through the filter screens 2 and the louvered air guide plates 3 on both sides. The area of ​​the tilted filter screen 2 is larger than that of the horizontal setting, thereby increasing the air intake effect and ensuring sufficient ventilation.

[0070] The filter screen 2 is tilted and arranged at both sides. On the basis of the second embodiment, a swing plate is arranged on the surface of the filter screen 2 in this embodiment. The swing plate is perpendicular to the filter screen 2 through a torsion spring. When the vehicle is driving, the swing plate swings backward due to wind resistance. Under the action of the change of wind resistance and the rebound force of the torsion spring, the swing plate swings back and forth. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter screen 2, the impurities and ice and snow fall to both sides along the surface of the filter screen 2 by the swing of the swing plate and the action of gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter screen 2 and causing blockage;

[0071] After passing through the filter 2, the airflow passes through the louver air guide 3, and the louver air guide 3 guides the flow of air so that the air is blown in a specified direction, thereby reducing air resistance and improving airflow utilization.

[0072] At the same time, water infiltrated by rain, snow, etc. flows to the bottom of both sides of the filter device body 1 through the guide of the louver air guide plate 3 under the action of gravity, so as to prevent the infiltrated water from freezing the cooling tower fan blades;

[0073] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide slot 13, then press the pressing plate 4 on the top of the filter screen 2, and fix the pressing plate 4 to the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide slot 13;

[0074] When the filter screen 2 needs to be cleaned, the filter screen 2 can be taken out from the inside of the chute 13 by simply removing the pressing plate 4, thereby facilitating the cleaning of the filter screen 2 and avoiding a cumbersome disassembly process;

[0075] On the basis of the second embodiment, in the present embodiment, a groove is opened at a lower position on the surface of the louver air guide plate 3. When the water penetrated by rain and snow through the filter net 2 falls on the surface of the louver air guide plate 3, the water flows to the groove with the air flow. When passing through the groove, the air flow passes horizontally, and the water enters the groove under the action of gravity and falls along the groove to both sides of the filter device body 1, thereby improving the drainage performance. The remaining features are the same as those of the second embodiment.

[0076] Embodiment 4:

[0077] With reference to the third embodiment, slide grooves 13 are fixedly provided on both sides of the main body 1 of the filter device, and these slide grooves are designed to accommodate and support the filter screen 2, and the louver air guide blades 3 are cleverly placed below the slide grooves 13, which not only facilitates air circulation, but also effectively prevents dust and other impurities from directly entering the interior of the device. As one of the core components, the installation process of the filter screen 2 is particularly important: first, carefully put the filter screen 2 into the pre-prepared slide grooves 13; then use the pressing plate 4 to ensure that the filter screen 2 does not move or fall off. Specifically, the design of the pressing plate 4 is very unique. Its two ends are formed into a groove structure by bending the sheet metal. When the pressing plate 4 is placed on the top of the filter screen 2, the edge of the filter screen 2 can be just embedded in the groove. In this way, as the pressing plate 4 gradually applies pressure downward, the filter screen 2 will be more firmly fixed in the slide groove 13;

[0078] This method has obvious advantages: on the one hand, it greatly improves the overall stability and safety of the filter 2 after installation; on the other hand, due to the adoption of the embedded design concept, the entire assembly process becomes simpler and faster, while also reducing the risk of damage caused by improper operation. In addition, this innovative design also takes into account the convenience of later maintenance. Even if a new filter 2 needs to be replaced, it can be easily completed without making too much change to the original structure. In short, through the application of the above-mentioned improvement measures, the filter device not only improves its own performance, but also brings a better user experience to the user;

[0079] The filter screen 2 is tilted and arranged on both sides of the filter device body 1 through the slide groove 13. Based on the first embodiment, a further improvement is made. An arc-shaped groove is designed inside the slide groove 13. At the same time, an arc-shaped protrusion is correspondingly arranged at the bottom of the filter screen 2. During the installation process, when the arc-shaped protrusion at the bottom of the filter screen 2 is just embedded in the arc-shaped groove inside the slide groove 13, it means that the filter screen 2 has accurately reached the predetermined installation position. This design not only helps to quickly and accurately determine the position of the filter screen 2, but also uses the arc structure to cooperate with the positioning mechanism, which can not only effectively fix and position the filter screen 2, but also will not interfere with or hinder its movement required during the assembly stage. The filter 2 is automatically adjusted to ensure smooth installation. In addition, this design also makes the entire filter device present a unique trapezoidal cross-section shape. When air enters the filter body 1 from both sides, due to the inclined arrangement, the filter 2 under this layout has a larger effective area exposed to the outside compared to the traditional horizontal placement method. Therefore, the air intake efficiency can be significantly improved, ensuring that there is sufficient air flow in the system, thereby improving the overall working performance. In short, by optimizing the design of details such as the specific shape of the chute and the filter, we have successfully solved some problems in the original solution and further enhanced the practicality and functionality of the product.

[0080] The filter 2 is tilted and arranged at both sides, and a swing plate is arranged on the surface of the filter 2. The swing plate is made perpendicular to the filter 2 by a torsion spring. When the vehicle is running, the swing plate swings backward due to wind resistance. Under the action of the change of wind resistance and the rebound force of the torsion spring, the swing plate swings back and forth. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter 2, the impurities and ice and snow fall to both sides along the surface of the filter 2 by the swing of the swing plate and the action of gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter 2 and causing blockage;

[0081] After passing through the filter 2, the airflow passes through the louver air guide 3, and the air flow is guided by the louver air guide 3. On the basis of the third embodiment, the louver air guide 3 is designed in a "human" shape in this embodiment, so that the surfaces of the louver air guide 3 facing both ends of the vehicle are inclined surfaces, so that when the vehicle moves in two directions, the air can be blown in the specified direction, reducing air resistance and improving airflow utilization;

[0082] At the same time, water infiltrated by rain, snow, etc. flows to the bottom of both sides of the filter device body 1 through the guide of the louver air guide plate 3 under the action of gravity, so as to prevent the infiltrated water from freezing the cooling tower fan blades;

[0083] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide slot 13, then press the pressing plate 4 on the top of the filter screen 2, and fix the pressing plate 4 to the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide slot 13;

[0084] When the filter screen 2 needs to be cleaned, the filter screen 2 can be taken out from the inside of the chute 13 by simply removing the pressing plate 4, thereby facilitating the cleaning of the filter screen 2 and avoiding a cumbersome disassembly process;

[0085] On the basis of the third embodiment, in this embodiment, hinges are arranged at the bottom of both sides of the filter device body 1, and the bottom of the filter screen mounting flange 21 is connected to the bottom of the filter device body 1 through the hinges. When cleaning the filter screen 2, after the pressure plate 4 is removed, the filter screen 2 is folded to both sides of the filter device body 1 so that the upper surface of the filter screen 2 faces downward, and the filter screen 2 can be cleaned. The remaining features are the same as those of the third embodiment.

[0086] Embodiment five:

[0087] With reference to the fourth embodiment, slide grooves 13 are fixedly provided on both sides of the main body 1 of the filter device, and these slide grooves are designed to accommodate and support the filter screen 2, and the louver air guide blades 3 are cleverly placed below the slide grooves 13, which not only facilitates air circulation, but also effectively prevents dust and other impurities from directly entering the interior of the device. As one of the core components, the installation process of the filter screen 2 is particularly important: first, carefully put the filter screen 2 into the pre-prepared slide grooves 13; then use the pressing plate 4 to ensure that the filter screen 2 does not move or fall off. Specifically, the design of the pressing plate 4 is very unique. Its two ends are formed into a groove structure by bending the sheet metal. When the pressing plate 4 is placed on the top of the filter screen 2, the edge of the filter screen 2 can be just embedded in the groove. In this way, as the pressing plate 4 gradually applies pressure downward, the filter screen 2 will be more firmly fixed in the slide groove 13;

[0088] This method has obvious advantages: on the one hand, it greatly improves the overall stability and safety of the filter 2 after installation; on the other hand, due to the adoption of the embedded design concept, the entire assembly process becomes simpler and faster, while also reducing the risk of damage caused by improper operation. In addition, this innovative design also takes into account the convenience of later maintenance. Even if a new filter 2 needs to be replaced, it can be easily completed without making too much change to the original structure. In short, through the application of the above-mentioned improvement measures, the filter device not only improves its own performance, but also brings a better user experience to the user;

[0089] The filter screen 2 is tilted and arranged on both sides of the filter device body 1 through the slide groove 13. Based on the first embodiment, a further improvement is made. An arc-shaped groove is designed inside the slide groove 13. At the same time, an arc-shaped protrusion is correspondingly arranged at the bottom of the filter screen 2. During the installation process, when the arc-shaped protrusion at the bottom of the filter screen 2 is just embedded in the arc-shaped groove inside the slide groove 13, it means that the filter screen 2 has accurately reached the predetermined installation position. This design not only helps to quickly and accurately determine the position of the filter screen 2, but also uses the arc structure to cooperate with the positioning mechanism, which can not only effectively fix and position the filter screen 2, but also will not interfere with or hinder its movement required during the assembly stage. The filter 2 is automatically adjusted to ensure smooth installation. In addition, this design also makes the entire filter device present a unique trapezoidal cross-section shape. When air enters the filter body 1 from both sides, due to the inclined arrangement, the filter 2 under this layout has a larger effective area exposed to the outside compared to the traditional horizontal placement method. Therefore, the air intake efficiency can be significantly improved, ensuring that there is sufficient air flow in the system, thereby improving the overall working performance. In short, by optimizing the design of details such as the specific shape of the chute and the filter, we have successfully solved some problems in the original solution and further enhanced the practicality and functionality of the product.

[0090] The filter 2 is tilted and arranged at both sides, and a swing plate is arranged on the surface of the filter 2. The swing plate is made perpendicular to the filter 2 by a torsion spring. When the vehicle is running, the swing plate swings backward due to wind resistance. Under the action of the change of wind resistance and the rebound force of the torsion spring, the swing plate swings back and forth. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter 2, the impurities and ice and snow fall to both sides along the surface of the filter 2 by the swing of the swing plate and the action of gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter 2 and causing blockage;

[0091] After passing through the filter 2, the airflow passes through the louver air guide 3, and the air flow is guided by the louver air guide 3. The louver air guide 3 is designed to be in a "human" shape, so that the surfaces of the louver air guide 3 facing both ends of the vehicle are inclined surfaces, so that when the vehicle moves in two directions, the air can be blown in the specified direction, reducing air resistance and improving airflow utilization;

[0092] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide groove 13, then press the pressing plate 4 on the top of the filter screen 2, so that the grooves at both ends of the pressing plate 4 are stuck on the top of the filter screen 2, and fix the pressing plate 4 with the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide groove 13;

[0093] When the filter screen 2 needs to be cleaned, it is only necessary to remove the bolts of the pressing plate 4, and then lift the pressing plate 4 through the lifting lug 12, and then the filter screen 2 can be taken out from the inside of the chute 13, so that the filter screen 2 can be cleaned easily and the cumbersome disassembly process can be avoided;

[0094] On the basis of the fourth embodiment, in this embodiment, a drain outlet is provided at the bottom of the chute 13, and a water pipe is connected to the bottom of the drain outlet. The water falling on both sides of the chute 13 is discharged to a designated position through the drain outlet and the water pipe. The remaining features are the same as those of the fourth embodiment.

[0095] Embodiment six:

[0096] With reference to the fifth embodiment, slide grooves 13 are fixedly provided on both sides of the main body 1 of the filter device, and these slide grooves are designed to accommodate and support the filter screen 2, and the louver air guide blades 3 are cleverly placed below the slide grooves 13, which not only facilitates air circulation, but also effectively prevents dust and other impurities from directly entering the interior of the device. As one of the core components, the installation process of the filter screen 2 is particularly important: first, carefully put the filter screen 2 into the pre-prepared slide grooves 13; then use the pressing plate 4 to ensure that the filter screen 2 does not move or fall off. Specifically, the design of the pressing plate 4 is very unique. Its two ends are formed into a groove structure by bending the sheet metal. When the pressing plate 4 is placed on the top of the filter screen 2, the edge of the filter screen 2 can be just embedded in the groove. In this way, as the pressing plate 4 gradually applies pressure downward, the filter screen 2 will be more firmly fixed in the slide groove 13;

[0097] This method has obvious advantages: on the one hand, it greatly improves the overall stability and safety of the filter 2 after installation; on the other hand, due to the adoption of the embedded design concept, the entire assembly process becomes simpler and faster, while also reducing the risk of damage caused by improper operation. In addition, this innovative design also takes into account the convenience of later maintenance. Even if a new filter 2 needs to be replaced, it can be easily completed without making too much change to the original structure. In short, through the application of the above-mentioned improvement measures, the filter device not only improves its own performance, but also brings a better user experience to the user;

[0098] The filter screen 2 is tilted and arranged on both sides of the filter device body 1 through the slide groove 13. Based on the first embodiment, a further improvement is made. An arc-shaped groove is designed inside the slide groove 13. At the same time, an arc-shaped protrusion is correspondingly arranged at the bottom of the filter screen 2. During the installation process, when the arc-shaped protrusion at the bottom of the filter screen 2 is just embedded in the arc-shaped groove inside the slide groove 13, it means that the filter screen 2 has accurately reached the predetermined installation position. This design not only helps to quickly and accurately determine the position of the filter screen 2, but also uses the arc structure to cooperate with the positioning mechanism, which can not only effectively fix and position the filter screen 2, but also will not interfere with or hinder its movement required during the assembly stage. The filter 2 is automatically adjusted to ensure smooth installation. In addition, this design also makes the entire filter device present a unique trapezoidal cross-section shape. When air enters the filter body 1 from both sides, due to the inclined arrangement, the filter 2 under this layout has a larger effective area exposed to the outside compared to the traditional horizontal placement method. Therefore, the air intake efficiency can be significantly improved, ensuring that there is sufficient air flow in the system, thereby improving the overall working performance. In short, by optimizing the design of details such as the specific shape of the chute and the filter, we have successfully solved some problems in the original solution and further enhanced the practicality and functionality of the product.

[0099] The filter 2 is tilted and arranged at both sides, and a swing plate is arranged on the surface of the filter 2. The swing plate is made perpendicular to the filter 2 by a torsion spring. When the vehicle is running, the swing plate swings backward due to wind resistance. Under the action of the change of wind resistance and the rebound force of the torsion spring, the swing plate swings back and forth. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter 2, the impurities and ice and snow fall to both sides along the surface of the filter 2 by the swing of the swing plate and the action of gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter 2 and causing blockage;

[0100] After passing through the filter 2, the airflow passes through the louver air guide 3, and the air flow is guided by the louver air guide 3. The louver air guide 3 is designed to be in a "human" shape, so that the surfaces of the louver air guide 3 facing both ends of the vehicle are inclined surfaces, so that when the vehicle moves in two directions, the air can be blown in the specified direction, reducing air resistance and improving airflow utilization;

[0101] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide groove 13, then press the pressing plate 4 on the top of the filter screen 2, so that the grooves at both ends of the pressing plate 4 are stuck on the top of the filter screen 2, and fix the pressing plate 4 with the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide groove 13;

[0102] When the filter screen 2 needs to be cleaned, it is only necessary to remove the bolts of the pressing plate 4, and then lift the pressing plate 4 through the lifting lug 12, and then the filter screen 2 can be taken out from the inside of the chute 13, so that the filter screen 2 can be cleaned easily and the cumbersome disassembly process can be avoided;

[0103] On the basis of Example 5, in this embodiment, a roller brush is arranged on the surface of the filter 2, and wind wheels are arranged at both ends of the roller brush. When the vehicle is driving, the wind wheel drives the roller brush to roll to clean the surface of the filter 2, thereby ensuring the ventilation effect of the filter 2. The remaining features are the same as those of Example 5.

[0104] Embodiment seven:

[0105] With reference to the sixth embodiment, slide grooves 13 are fixedly provided on both sides of the main body 1 of the filter device, and these slide grooves are designed to accommodate and support the filter screen 2, and the louver air guide blades 3 are cleverly placed below the slide grooves 13, which not only facilitates air circulation, but also effectively prevents dust and other impurities from directly entering the interior of the device. As one of the core components, the installation process of the filter screen 2 is particularly important: first, carefully put the filter screen 2 into the pre-prepared slide groove 13; then use the pressing plate 4 to ensure that the filter screen 2 does not move or fall off. Specifically, the design of the pressing plate 4 is very unique. Its two ends are formed into a groove structure by bending the sheet metal. When the pressing plate 4 is placed on the top of the filter screen 2, the edge of the filter screen 2 can be embedded in the groove. In this way, as the pressing plate 4 gradually applies pressure downward, the filter screen 2 will be more firmly fixed in the slide groove 13;

[0106] This method has obvious advantages: on the one hand, it greatly improves the overall stability and safety of the filter 2 after installation; on the other hand, due to the adoption of the embedded design concept, the entire assembly process becomes simpler and faster, while also reducing the risk of damage caused by improper operation. In addition, this innovative design also takes into account the convenience of later maintenance. Even if a new filter 2 needs to be replaced, it can be easily completed without making too much change to the original structure. In short, through the application of the above-mentioned improvement measures, the filter device not only improves its own performance, but also brings a better user experience to the user;

[0107] The filter screen 2 is tilted and arranged on both sides of the filter device body 1 through the slide groove 13. Based on the first embodiment, a further improvement is made. An arc-shaped groove is designed inside the slide groove 13. At the same time, an arc-shaped protrusion is correspondingly arranged at the bottom of the filter screen 2. During the installation process, when the arc-shaped protrusion at the bottom of the filter screen 2 is just embedded in the arc-shaped groove inside the slide groove 13, it means that the filter screen 2 has accurately reached the predetermined installation position. This design not only helps to quickly and accurately determine the position of the filter screen 2, but also uses the arc structure to cooperate with the positioning mechanism, which can not only effectively fix and position the filter screen 2, but also will not interfere with or hinder its movement required during the assembly stage. The filter 2 is automatically adjusted to ensure smooth installation. In addition, this design also makes the entire filter device present a unique trapezoidal cross-section shape. When air enters the filter body 1 from both sides, due to the inclined arrangement, the filter 2 under this layout has a larger effective area exposed to the outside compared to the traditional horizontal placement method. Therefore, the air intake efficiency can be significantly improved, ensuring that there is sufficient air flow in the system, thereby improving the overall working performance. In short, by optimizing the design of details such as the specific shape of the chute and the filter, we have successfully solved some problems in the original solution and further enhanced the practicality and functionality of the product.

[0108] The filter 2 is tilted and arranged at both sides, and a swing plate is arranged on the surface of the filter 2. The swing plate is made perpendicular to the filter 2 by a torsion spring. When the vehicle is running, the swing plate swings backward due to wind resistance. Under the action of the change of wind resistance and the rebound force of the torsion spring, the swing plate swings back and forth. When impurities such as dust, debris, catkins, ice and snow fall on the surface of the filter 2, the impurities and ice and snow fall to both sides along the surface of the filter 2 by the swing of the swing plate and the action of gravity, thereby preventing the impurities or ice and snow from being deposited on the surface of the filter 2 and causing blockage;

[0109] After passing through the filter 2, the airflow passes through the louver air guide 3, and the air flow is guided by the louver air guide 3. The louver air guide 3 is designed to be in a "human" shape, so that the surfaces of the louver air guide 3 facing both ends of the vehicle are inclined surfaces, so that when the vehicle moves in two directions, the air can be blown in the specified direction, reducing air resistance and improving airflow utilization;

[0110] Slide the filter screen 2 through the filter screen mounting flange 21 and insert it into the inside of the slide groove 13, then press the pressing plate 4 on the top of the filter screen 2, so that the grooves at both ends of the pressing plate 4 are stuck on the top of the filter screen 2, and fix the pressing plate 4 with the filter device body 1 by bolts, so as to fix the filter screen 2 in the inside of the slide groove 13;

[0111] When the filter screen 2 needs to be cleaned, it is only necessary to remove the bolts of the pressing plate 4, and then lift the pressing plate 4 through the lifting lug 12, and then the filter screen 2 can be taken out from the inside of the chute 13, so that the filter screen 2 can be cleaned easily and the cumbersome disassembly process can be avoided;

[0112] On the basis of Example 6, in this embodiment, the cross-section of the louver air guide blade 3 is a triangular hollow tube, and a through slot is provided on one side of the louver air guide blade 3. The side of the louver air guide blade 3 where the through slot is provided faces upward, and the through slot is located in front of the wind direction. When water falls on the surface of the louver air guide blade 3, the water falls into the interior of the louver air guide blade 3 through the through slot under the blowing of the airflow, and then flows to the designated position through the interior of the louver air guide blade 3. The remaining features are the same as those of Example 6.

[0113] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0114] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A roof ventilation filter device for a rail vehicle, characterized in that: include: The filter device body, the bottom of the louvered air guide piece is fixedly connected with a filter device mounting flange, and both sides of the filter device body are fixedly connected with slide grooves; A filter screen, the filter screen is arranged inside the chute, and a pressing plate is arranged on the top of the filter screen; The louver air guide plate is fixedly installed inside the main body of the filter device.

2. The roof ventilation filter device for a rail vehicle according to claim 1, characterized in that: The filter device body is fixedly connected to the vehicle body through the filter device mounting flange.

3. The roof ventilation filter device for a rail vehicle according to claim 2, characterized in that: A lifting lug is fixedly mounted on the top of the filter device body, and the lifting lug is used for lifting the filter device body.

4. The roof ventilation filter device for a rail vehicle according to claim 3, characterized in that: The slide grooves are provided in two groups, the two groups of slide grooves are symmetrically arranged, the slide grooves are inclinedly arranged, and the two groups of slide grooves and the main body of the filter device form a frame with a trapezoidal cross section.

5. The roof ventilation filter device for a rail vehicle according to claim 4, characterized in that: A filter screen mounting flange is fixedly arranged at the bottom of the filter screen, and the filter screen mounting flange is arranged inside the slide groove.

6. The roof ventilation filter device for a rail vehicle according to claim 5, characterized in that: The two ends of the pressing plate are respectively pressed on the top ends of the filter screens on both sides of the filter device body.

7. The roof ventilation filter device for a rail vehicle according to claim 6, characterized in that: The pressing plate is fixedly connected to the filtering device body by bolts.

8. The roof ventilation filter device for a rail vehicle according to claim 7, characterized in that: The pressing plate is used to fix the filter screen inside the chute.

9. The roof ventilation filter device for a rail vehicle according to claim 8, characterized in that: The louver air guide piece is arranged below the filter screen.

10. The roof ventilation filter device for a rail vehicle according to claim 9, characterized in that: The filter screen is communicated with the interior of the filter device body through the louver air guide piece.

Images