A filter device for sink drainage for railway vehicles
By designing a combined structure of filter box, filter basket and inspection door under the handwashing basin in railway vehicles, the problem of pipe blockage under the handwashing basin was solved, realizing large-capacity impurity filtration and environmental protection, and reducing the cleaning burden on the crew.
Patent Information
- Application Number
- CN202522432281.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-17
Smart Images
Figure CN224929025U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rail vehicle technology, and more specifically to a filtration device for the drainage of a handwashing basin in railway vehicles. Background Technology
[0002] The filters under the washbasins in existing railway vehicle toilets and kitchens generally use Y-type filters or return water traps for drainage, which can only filter a small amount of small particulate impurities. However, feedback from railway operation departments and the after-sales departments of the main engine manufacturers indicates that the drainage situation in actual use is very poor. Passengers often pour large amounts of tea leaves, leftover fruit peels, instant noodles, and other garbage directly into the washbasins. Although the crew has repeatedly reminded passengers not to pour garbage directly into the washbasins, the situation remains unchanged, easily causing blockages in the pipes under the washbasins, overflowing sewage and polluting the ground environment, requiring the crew to spend a lot of time cleaning.
[0003] Traditional Y-type filters or return water bends have built-in filter screens with a diameter similar to the diameter of their interface pipes, resulting in limited dirt collection capacity. This makes them unsuitable for situations where large amounts of dirt are discharged, and they are prone to pipe blockage.
[0004] Traditional filters are no longer suitable for poor usage conditions, and there is an urgent need for a new type of filtration device that is different from the traditional concept to filter and collect large amounts of different types of impurities and optimize the in-vehicle floor environment.
[0005] To address the aforementioned problems, a filtration device for handwashing basin drainage in railway vehicles is now provided. Summary of the Invention
[0006] In view of the deficiencies in the existing technology, the purpose of this application is to provide a filtration device for the drainage of handwashing basins in railway vehicles. Based on the structural cooperation of the filter basket, filter box and inspection door, it is used in the drainage system under the handwashing basin, which can solve the problem of pipe blockage and effectively reduce the cleaning work of the crew.
[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: A filtration device for handwashing basin drainage in railway vehicles, the handwashing basin drainage filtration device comprising: The filter box has a first connecting pipe on its top surface and a second connecting pipe on its bottom surface. The side wall of the filter box has an inspection opening, and the inner wall of the filter box has symmetrically arranged filter basket support plates. An inspection door is hinged to the outside of the side wall of the filter box via a hinge structure. The free side of the inspection door is connected to a snap-fit structure installed on the outside of the side wall of the filter box. A rubber sealing strip is provided on the inner edge of the inspection door. The rubber sealing strip has a frame-shaped structure and its size matches the size of the inspection opening. The filter basket located inside the filter box is supported by a filter basket support plate.
[0008] Based on the above technical solution, the filter basket is a barrel-shaped structure with an opening at the top and filter holes on the side walls and bottom.
[0009] Based on the above technical solution, when the inspection door covers the inspection opening and the buckle structure fixes the inspection door to the outer side wall of the filter box, the rubber sealing strip surrounds the outer edge of the inspection opening.
[0010] Based on the above technical solution, the inspection opening is a rectangular opening; The rubber sealing strip is rectangular in shape.
[0011] Based on the above technical solution, a full liquid level indicator light is provided on the inner wall of the filter box near the top surface.
[0012] Compared with the prior art, the advantages of this application are: This application, based on the structural cooperation of the filter basket, filter box and inspection door, is used in the drainage system under the handwashing basin, which can solve the problem of pipe blockage and effectively reduce the cleaning work of the crew. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of a filtration device for draining handwashing basins in railway vehicles, according to an embodiment of this application. Figure 2 This is a schematic diagram of the structure of a handwashing basin drainage filter device for railway vehicles according to an embodiment of this application when the inspection door is open; Figure 3 This is a schematic diagram of the structure of a handwashing basin drainage filter device for railway vehicles according to an embodiment of this application when the inspection door is closed; Figure 4This is a structural detail diagram of a handwashing basin drainage filter device for railway vehicles, according to an embodiment of this application, when the inspection door is closed. In the picture: 1. Filter box body; 10. First connecting pipe; 11. Second connecting pipe; 12. Inspection opening; 13. Filter basket support plate; 14. Full liquid level indicator light; 2. Inspection door; 20. Hinge structure; 21. Snap-fit structure; 22. Rubber sealing strip; 3. Filter basket; A. Flange. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0016] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.
[0017] This application provides a filtration device for handwashing basin drainage in railway vehicles. Based on the structural cooperation of the filter basket, filter box and inspection door, it is used in the drainage system under the handwashing basin, which can solve the problem of pipe blockage and effectively reduce the cleaning work of the crew.
[0018] To achieve the aforementioned technical effects, the overall concept of this application is as follows: A filtration device for handwashing basin drainage in railway vehicles, the handwashing basin drainage filtration device comprising: The filter box 1 has a first connecting pipe 10 on its top surface and a second connecting pipe 11 on its bottom surface. The side wall of the filter box 1 has an inspection opening 12, and the inner wall of the filter box 1 has symmetrically arranged filter basket support plates 13. The inspection door 2 is hinged to the outside of the side wall of the filter box 1 via a hinge structure 20. The free side of the inspection door 2 is connected to the outside of the side wall of the filter box 1 via a snap-fit structure 21. A rubber sealing strip 22 is provided on the inner edge of the inspection door 2. The rubber sealing strip 22 has a frame structure and the size of the rubber sealing strip 22 matches the size of the inspection opening 12. The filter basket 3 located inside the filter box 1 is supported by the filter basket support plate 13.
[0019] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.
[0020] See Figures 1-4As shown, this application provides a filtration device for handwashing basin drainage in railway vehicles, the filtration device for handwashing basin drainage includes: The filter box 1 has a first connecting pipe 10 on its top surface and a second connecting pipe 11 on its bottom surface. The side wall of the filter box 1 has an inspection opening 12, and the inner wall of the filter box 1 has symmetrically arranged filter basket support plates 13. The inspection door 2 is hinged to the outside of the side wall of the filter box 1 via a hinge structure 20. The free side of the inspection door 2 is connected to the outside of the side wall of the filter box 1 via a snap-fit structure 21. A rubber sealing strip 22 is provided on the inner edge of the inspection door 2. The rubber sealing strip 22 has a frame structure and the size of the rubber sealing strip 22 matches the size of the inspection opening 12. The filter basket 3 located inside the filter box 1 is supported by the filter basket support plate 13.
[0021] In this embodiment, the structural cooperation of the filter basket, filter box, and inspection door is used in the drainage system under the handwashing basin, which can solve the problem of pipe blockage and effectively reduce the cleaning work of the crew. Furthermore, the filter basket 3 is a barrel-shaped structure with an opening at the top and filter holes on the side walls and bottom.
[0022] Furthermore, when the inspection door 2 covers the inspection opening 12, and the snap-fit structure 21 fixes the inspection door 2 to the outer side wall of the filter box 1, the rubber sealing strip 22 surrounds the outer edge of the inspection opening 12.
[0023] Furthermore, the inspection opening 12 is a rectangular opening, which is actually an opening on an arc surface, and its projection is a rectangle; The rubber sealing strip 22 is rectangular in shape.
[0024] Furthermore, a full liquid level indicator light 14 is provided on the inner wall of the filter box 1 near the top surface.
[0025] The technical solution based on the embodiments of this application is as follows: The two ends of the filter device for the sink drain are pipe connection interfaces, namely the first connecting pipe 10 and the second connecting pipe 11, and the middle is an expanded filter box 1 with a built-in filter basket 3 for collecting dirt and impurities.
[0026] The outer diameter of the filter box 1 can be increased to 5 to 6 times the outer diameter of the original pipe, depending on the space under the sink. The built-in filter basket 3 is densely covered with filter holes on all sides and bottom. Even if a large amount of dirt and impurities are discharged and the bottom filter holes are sealed, the filter holes distributed on the sides can continue to drain water, so there will basically be no problem with drainage blockage.
[0027] The front of the filter box 1 of the filter device for the washbasin drainage is an inspection door 2 with a hinge structure 20. After the door is closed, it is fastened by a snap-fit structure 21. The inner arc edge of the inspection door 2 matches the outer edge of the flange A of the filter basket 3 to prevent the filter basket 3 from moving during train operation. The interior perimeter of inspection door 2 is sealed with a rubber sealing strip 22. When the buckle structure 21 is tightened, the rubber sealing strip 22 is pressed around the door to prevent water leakage.
[0028] The front of the sink drain filter is equipped with a full liquid level indicator light 14 and a built-in liquid level sensor. When the collected waste reaches the upper limit, the red indicator light will light up to remind you to empty the collected waste. The front of the built-in filter basket 3 is equipped with a small handle, which can be pulled out from the overlapping edge inside the filter box 1 to regularly clean the waste and prevent the accumulation of impurities and the occurrence of odors.
[0029] This washbasin drainage filter can be installed by modifying the existing drainage pipe connection interface or by redesigning the drainage pipe as needed, in order to achieve a reasonable and simple drainage method.
[0030] During use, it is essential to ensure that the filter device is in normal working order. Inspection door 2 is secured to the filter housing 1 via a snap-fit mechanism 21. The internal perimeter rubber sealing strip 22 is undamaged and aged, and provides a good seal; The filter basket 3 inside the filter housing 1 is securely installed and does not move around; During the drainage process of the washbasin, check around the door for any leaks.
[0031] Regularly clean the dirt and debris collected in the filter basket 3 inside the filter device. After cleaning, remember to put the filter basket 3 back into the device and restore the device to normal operating condition to prevent the filter basket 3 from being lost. If the filter basket 3 is found to be missing from the device, it needs to be replenished in time to avoid affecting the normal use of the device and causing pipeline blockage.
[0032] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0033] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. 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 this application. Therefore, this application 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 claimed herein.
Claims
1. A filtration device for the drainage of handwashing basins in railway vehicles, characterized in that, The filtration device for the washbasin drainage includes: The filter box (1) has a first connecting pipe (10) on its top surface and a second connecting pipe (11) on its bottom surface. The filter box (1) has an inspection opening (12) on its side wall and filter basket support plates (13) symmetrically arranged on its inner wall. The inspection door (2) is hinged to the outside of the side wall of the filter box (1) by a hinge structure (20). The free side of the inspection door (2) is connected to the outside of the side wall of the filter box (1) by a snap-fit structure (21). A rubber sealing strip (22) is provided on the inner edge of the inspection door (2). The rubber sealing strip (22) is a frame structure, and the size of the rubber sealing strip (22) matches the size of the inspection opening (12). The filter basket (3) located inside the filter box (1) is supported by the filter basket support plate (13).
2. The filtration device for handwashing basin drainage in railway vehicles as described in claim 1, characterized in that: The filter basket (3) is a barrel-shaped structure with an opening at the top and filter holes on the side walls and bottom.
3. The filtration device for handwashing basin drainage in railway vehicles as described in claim 1, characterized in that: When the inspection door (2) covers the inspection opening (12) and the snap-fit structure (21) fixes the inspection door (2) to the outside of the side wall of the filter box (1), the rubber sealing strip (22) surrounds the outside of the inspection opening (12).
4. The filtration device for handwashing basin drainage in railway vehicles as described in claim 1, characterized in that: The inspection opening (12) is a rectangular opening; The rubber sealing strip (22) is rectangular in shape.
5. The filtration device for handwashing basin drainage in railway vehicles as described in claim 1, characterized in that: A full liquid level indicator (14) is provided on the inner wall of the filter box (1) near the top surface.