A high waterproof effect door frame structure of a toilet of a motor train unit

Abstract

The utility model discloses a high -quality bathroom door frame structure of motor train unit of waterproof effect, including door frame main part, the door frame main part inside is hinged to be connected with door main body, the first installation slot is set up in the door frame main part inside four -corner side wall, the door frame elastic sealing subassembly is provided with in the first installation slot, the door frame elastic sealing subassembly includes the first magnetic stripe fixed connection of first installation slot bottom, and the device passes through the synergies of door frame elastic sealing subassembly and door elastic sealing subassembly, the sealing reliability of closing door is improved significantly, when door main body closes to door frame main part, the first magnetic stripe and second magnetic stripe produce initial adsorption force of heteropolar attraction, and the guide sealing strip accurate alignment is guided, along with the door body continuing to close, the elastic system of damper and spring constitutes is compressed, provides the progressive buffer pre -tightening force, makes sealing strip even and paste door body and door frame contact surface.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology for rail vehicle door frames, specifically to a waterproof door frame structure for use in the toilets of high-speed trains. Background Technology

[0002] In the field of waterproofing technology for high-speed train toilets, the door frame structure is a key component for preventing water seepage. Its sealing reliability and drainage efficiency directly affect the safety of the carriage environment and the passenger experience. Currently, traditional toilet door frame structures have significant defects in dynamic sealing and water accumulation treatment, making it difficult to meet the waterproofing requirements of high-speed trains in complex operating environments.

[0003] On the one hand, existing door frame sealing technologies mostly rely on a single rubber strip. When the door is closed, a large impact force is required to deform the sealing strip to achieve a seal. After long-term use, the rubber is prone to aging and the seal fails. Traditional structures lack elastic buffer components and multi-level sealing coordination mechanisms, and cannot dynamically compensate for sealing gaps during frequent opening and closing of the doors. Especially when the train is bumpy or the air pressure changes, water leakage from the gaps is very likely to occur. On the other hand, daily use of the toilet will generate water stains, such as cleaning splashes and residual water on the floor. Existing door frame structures generally lack reasonable and efficient drainage mechanisms. Water stains are prone to accumulate at the edges of the door frame, and may even seep into the interior of the carriage through the gaps between the door frame and the wall. This can not only damage the surrounding interior but may also cause electrical faults. Although some designs add drainage channels, they lack slope optimization and anti-backflow mechanisms. When the train tilts or accelerates, the drainage efficiency drops significantly, and water may even overflow in reverse.

[0004] Therefore, developing a waterproof door frame technology that integrates a dynamic elastic sealing structure and an efficient drainage system is key to solving the waterproofing problem of high-speed train toilets, and is of great significance for improving the durability of train interiors, reducing maintenance costs, and improving passenger experience. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waterproof toilet door frame structure for high-speed trains. It aims to solve the problems of dynamic compensation of sealing gaps and efficient drainage mechanism during the frequent opening and closing of train doors, and becomes the key to solving the waterproof problem of high-speed train toilets. It is of great significance to improve the durability of train door frames, reduce maintenance costs and improve passenger experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waterproof toilet door frame structure for high-speed trains includes a door frame body. A door body is rotatably connected to the inside of the door frame body via hinges. A first mounting groove is formed on the four side walls inside the door frame body. An elastic sealing assembly is installed inside the first mounting groove. The elastic sealing assembly includes a first magnetic strip fixedly connected to the bottom of the first mounting groove. Two extrusion plates are positioned at the end of the first magnetic strip located in the first mounting groove and near the door body. A sealing strip is positioned between the two extrusion plates, with one side of the sealing strip fixedly connected to the first magnetic strip. Extrusion grooves are formed on the front and rear inner side walls of the first mounting groove. A damper is installed within each extrusion groove. The two ends of the damper are fixedly connected to the ends of the two extrusion plates and the ends of the two extrusion grooves, respectively. A spring is sleeved on the outer wall of the damper.

[0008] Preferably, a second mounting groove is provided on the outer wall of the door body, and a door elastic sealing component is provided inside the second mounting groove.

[0009] Preferably, the door elastic sealing assembly has the same structure as the door frame elastic sealing assembly.

[0010] Preferably, the door resilient sealing assembly includes a second magnetic strip, the second magnetic strip having opposite magnetism to the side of the first magnetic strip that is close to it.

[0011] Preferably, the door frame body is further provided with a drainage mechanism, which includes a drainage groove opened on the four side walls inside the door frame body and at the front end of the door frame elastic sealing assembly. The bottom of the drainage groove has a sloping structure that is high in the middle and low on both sides.

[0012] Preferably, drainage holes are provided on both sides of the bottom of the drainage groove on the inner side wall of the door frame body.

[0013] Preferably, the sealing strip is made of EPDM rubber material, and the surface of the EPDM rubber is coated with a tetrafluoroethylene coating.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This device significantly improves the sealing reliability when closing the door through the synergistic effect of the door frame elastic sealing component and the door elastic sealing component. When the door body closes to the door frame body, the first magnetic strip and the second magnetic strip, which are opposite poles, generate an initial adsorption force to guide the sealing strip to be accurately aligned. As the door body continues to close, the elastic system composed of the damper and the spring is compressed, providing a progressive buffer pre-tightening force, so that the sealing strip is evenly attached to the contact surface between the door body and the door frame. When the double extrusion plate structure is subjected to impact, the stress is dispersed by the damper to avoid excessive local stress leading to sealing failure.

[0016] (2) This device achieves efficient drainage and backflow prevention through the diversion mechanism. When water seeps into the diversion channel along the edge of the door frame, the slope structure with a high middle and low sides guides the water flow to converge quickly at both ends. Using the principle of gravity acceleration, the water is discharged into the train drainage system through the diversion hole. The slope design also has the function of preventing backflow. The water in the diversion channel can still maintain unidirectional flow. Combined with the arc chamfer design of the diversion hole, it effectively prevents water from flowing back and seeping back. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the door frame;

[0018] Figure 2 This is a schematic cross-sectional view of the door frame elastic sealing assembly.

[0019] Figure 3 A schematic diagram of the cross-sectional structure of the door frame drainage mechanism;

[0020] Figure 4 This is an enlarged structural diagram of point A of the drainage mechanism.

[0021] In the figure: 1. Door frame body; 2. Door body; 3. Door frame elastic sealing assembly; 301. First magnetic strip; 302. Extrusion plate; 303. Sealing strip; 304. Damper; 305. Spring; 4. Door elastic sealing assembly; 401. Second magnetic strip; 5. Drainage mechanism; 501. Drainage groove; 502. Drainage hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figures 1-4This utility model discloses a waterproof toilet door frame structure for high-speed trains, including a door frame body 1. A door body 2 is rotatably connected to the inside of the door frame body 1 via hinges. A first mounting groove is formed on the four sides of the inside of the door frame body 1. An elastic sealing component 3 is installed inside the first mounting groove. The elastic sealing component 3 includes a first magnetic strip 301 fixedly connected to the bottom of the first mounting groove. Two extrusion plates 302 are provided at the end of the first magnetic strip 301 located in the first mounting groove and near the door body 2. A sealing strip 303 is provided between the two extrusion plates 302. One side of the sealing strip 303 is fixedly connected to the first magnetic strip 301. Extrusion grooves are formed on the front and rear inner side walls of the first mounting groove. A damper 304 is installed in the extrusion groove, and both ends of the damper 304 are respectively connected to two... One end of the extrusion plate 302 that is far apart from the other end and the other ends of the two extrusion grooves that are far apart from each other are fixedly connected. A spring 305 is sleeved on the outer wall of the damper 304. The door frame elastic sealing component 3 is set in the first mounting groove on the four sides of the inner side wall of the door frame body 1. The magnetism of the first magnetic strip 301 is used to initially attract and guide the door body 2 when it is closed, so that the sealing strip 303 is close to the door body. During the closing process, the extrusion plate 302 is subjected to the pressure of the door body, which compresses the damper 304 and the spring 305. The spring 305 generates a continuous elastic pre-tightening force, and the damper 304 slows down the extrusion speed, so that the sealing strip 303 fits the door body and the door frame evenly and tightly. The effect is to ensure that the sealing strip 303 always maintains a good sealing state in the environment of frequent opening and closing of train doors and bumpy operation, effectively preventing water leakage in the toilet.

[0025] As one implementation method of this embodiment, such as Figure 2 As shown, a second mounting groove is provided on the outer wall of the door body 2, and a door elastic sealing component 4 is provided inside the second mounting groove. By providing a second mounting groove and a door elastic sealing component 4 on the outer wall of the door body 2, the door elastic sealing component 4 and the door frame elastic sealing component 3 form a double sealing structure when the door body and the door frame are closed. Compared with a single sealing structure, the double sealing design can more effectively block water vapor and water flow in the bathroom, significantly improve the overall waterproof performance of the door frame, reduce the risk of leakage, and create a drier and safer environment inside the vehicle.

[0026] As one implementation method of this embodiment, the door elastic sealing component 4 and the door frame elastic sealing component 3 have the same structure. By setting the door elastic sealing component 4 and the door frame elastic sealing component 3 to have the same structure, when the door is closed, the two sets of symmetrical sealing components can achieve synchronous compression and synchronous force. When the door body 2 closes to the door frame body 1, the magnetic strip, compression plate, damper and spring in the door elastic sealing component 4 work together with the corresponding parts of the door frame elastic sealing component 3 to generate a double elastic sealing force, ensuring that a uniform and high-strength sealing barrier is formed between the door body and the door frame. Compared with the cooperation of sealing components with different structures, it can more stably and efficiently block water stains in the bathroom, significantly improve the waterproof performance, and greatly reduce the risk of leakage.

[0027] As one embodiment of this invention, the door elastic sealing assembly 4 includes a second magnetic strip 401. The magnetic properties of the second magnetic strip 401 are opposite to those of the first magnetic strip 301 on the side closest to it. By making the magnetic properties of the second magnetic strip 401 in the door elastic sealing assembly 4 opposite to those of the first magnetic strip 301 in the door frame elastic sealing assembly 3 on the side closest to it, the magnetic force of opposite poles attracting each other can actively guide the door to be accurately aligned during the closing process of the door body 2, reducing the deviation of closing. At the same time, the attraction force generated by the magnetic attraction is superimposed with the elastic pressure formed by the spring 305 and the damper 304, which further enhances the tightness of the fit between the sealing strip 303 and the door body and door frame, significantly improving the sealing accuracy and sealing pressure when closing. Even when the train is running at high speed and vibrates, the sealing assembly can be kept stably fitted by the dual action of magnetic force and elastic force, effectively preventing water vapor and water leakage in the bathroom.

[0028] As one implementation method of this embodiment, such as Figure 3 As shown, a drainage mechanism 5 is also provided inside the door frame body 1. The drainage mechanism 5 includes a drainage channel 501 opened on the four sides inside the door frame body 1 and at the front end of the door frame elastic sealing component 3. The bottom of the drainage channel 501 has a sloping structure with a high center and low sides. By setting the drainage channel 501 with a sloping structure with a high center and low sides on the four sides inside the door frame body 1 and at the front end of the door frame elastic sealing component 3, when water stains in the bathroom seep into the door frame, the water will quickly flow to both sides of the drainage channel 501 along the sloping structure using the principle of gravity. This can effectively guide and drain the water in time, prevent water stains from accumulating at the door frame, prevent water from seeping into the interior of the vehicle, and greatly improve the overall waterproof performance.

[0029] As one implementation method of this embodiment, such as Figure 4 As shown, drainage holes 502 are provided on both sides of the bottom of the drainage channel 501 on the inner side wall of the door frame body 1. By providing drainage holes 502 on both sides of the bottom of the drainage channel 501 of the door frame body 1, and in conjunction with the slope structure of the drainage channel 501 which is high in the middle and low on both sides, the water collected on both sides of the drainage channel 501 can be quickly discharged to the train drainage system through the drainage holes 502. As a key outlet of the drainage channel, the drainage holes 502 accelerate the drainage process of the water and prevent water from stagnating in the drainage channel 501. The effect is to effectively improve the drainage efficiency of the door frame structure, completely eliminate the hidden danger of water accumulation, prevent the risk of door frame corrosion and leakage caused by long-term water accumulation, and further ensure the dry and safe environment inside the carriage.

[0030] As one embodiment of this invention, the sealing strip 303 is made of EPDM rubber material, and the surface of the EPDM rubber is coated with a tetrafluoroethylene coating. By using EPDM rubber material to make the sealing strip 303 and coating its surface with a tetrafluoroethylene coating, the excellent weather resistance, aging resistance and high elasticity of EPDM rubber are utilized to ensure that the sealing strip maintains good elastic deformation ability for a long time in the complex operating environment of the train, achieving a tight fit and seal. At the same time, the tetrafluoroethylene coating has an extremely low surface friction coefficient and strong corrosion resistance, which can effectively reduce frictional loss between the sealing strip and the door body and door frame, reduce wear, and prevent chemical corrosion. The effect is to significantly extend the service life of the sealing strip and improve the sealing reliability. Even in frequent door opening and closing and humid and corrosive environments, it can continue to play an efficient waterproof sealing role and reduce the frequency of maintenance and replacement.

[0031] Working principle:

[0032] By setting a door frame elastic sealing component 3 and a door elastic sealing component 4 on the door frame body 1 and the door body 2 respectively, and making the two have the same structure and opposite magnetic strips, a double sealing barrier is constructed. When the door is closed, the opposite poles of the first magnetic strip 301 and the second magnetic strip 401 attract each other, guiding the door body to be accurately aligned and reducing closing deviation. The extrusion plate 302 compresses the damper 304 and the spring 305 under the pressure of the door body. The spring 305 generates a continuous elastic preload, and the damper 304 slows down the extrusion speed, so that the two sets of sealing components are subjected to force synchronously, ensuring that the sealing strip 303 fits the door body and the door frame evenly and tightly, forming a high-strength sealing barrier.

[0033] The drainage channel 501, which is set on the four sides of the inner side wall of the door frame body 1, has a sloping structure with a high middle and low sides. Combined with the drainage holes 502 opened on both sides of the bottom, it forms an efficient drainage system. When water stains from the toilet seep into the door frame, the water flows quickly along the slope to the sides of the drainage channel 501 using the principle of gravity, and is quickly discharged into the train drainage system through the drainage holes 502, thus preventing water from accumulating at the door frame and preventing it from seeping into the interior of the carriage.

[0034] The sealing strip 303 is made of EPDM rubber and coated with PTFE. The weather resistance, aging resistance and high elasticity of EPDM rubber ensure that the sealing strip maintains good elastic deformation ability for a long time in the complex operating environment of the train. The low surface friction coefficient and strong corrosion resistance of the PTFE coating reduce frictional loss between the sealing strip and the door body and door frame, prevent chemical corrosion, and thus significantly extend the service life of the sealing strip and improve the sealing reliability.

[0035] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A waterproof door frame structure for a high-speed train toilet, characterized in that: The device includes a door frame body (1), which is connected to a door body (2) via a hinge. The door frame body (1) has a first mounting groove on its four sides. The door frame elastic sealing assembly (3) is installed inside the first mounting groove. The door frame elastic sealing assembly (3) includes a first magnetic strip (301) fixedly connected to the bottom of the first mounting groove. The first magnetic strip (301) is located in the first mounting groove and has two extrusion plates (302) at one end near the door body (2). A sealing strip (303) is provided between the two extrusion plates (302). One side of the sealing strip (303) is fixedly connected to the first magnetic strip (301). Extrusion grooves are provided on the front and rear inner sidewalls of the first mounting groove. A damper (304) is provided in the extrusion groove. The two ends of the damper (304) are fixedly connected to the ends of the two extrusion plates (302) and the ends of the two extrusion grooves, respectively. A spring (305) is sleeved on the outer sidewall of the damper (304).

2. The waterproof toilet door frame structure for high-speed trains according to claim 1, characterized in that: A second mounting groove is provided on the outer side wall of the door body (2), and a door elastic sealing component (4) is provided inside the second mounting groove.

3. The waterproof toilet door frame structure for high-speed trains according to claim 2, characterized in that: The door elastic sealing assembly (4) has the same structure as the door frame elastic sealing assembly (3).

4. The waterproof toilet door frame structure for high-speed trains according to claim 3, characterized in that: The door elastic sealing assembly (4) includes a second magnetic strip (401), the second magnetic strip (401) having opposite magnetism to the side of the first magnetic strip (301) that is close to it.

5. The waterproof toilet door frame structure for high-speed trains according to claim 1, characterized in that: The door frame body (1) is also provided with a drainage mechanism (5). The drainage mechanism (5) includes a drainage groove (501) opened on the four sides inside the door frame body (1) and at the front end of the door frame elastic sealing assembly (3). The bottom of the drainage groove (501) has a sloping structure with a high middle and low sides.

6. The waterproof toilet door frame structure for high-speed trains according to claim 5, characterized in that: The door frame body (1) has drainage holes (502) on both sides of the bottom of the drainage groove (501) on the inner side wall.

7. The waterproof toilet door frame structure for high-speed trains according to claim 1, characterized in that: The sealing strip (303) is made of EPDM rubber material, and the surface of the EPDM rubber is coated with PTFE.

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