Compact duckbill valve connecting structure

Abstract

The utility model relates to a compact duckbill valve connecting structure. The compact duckbill valve connecting structure comprises a hose with one end used for being connected with a drainage pipeline of a railway vehicle; a hard tube partially inserted into the other end of the hose; the duckbill valve body is formed by vulcanizing a metal sleeve and a rubber part, the metal sleeve of the duckbill valve body is pressed between the hose and the hard pipe, and the rubber part of the duckbill valve body is located in the hard pipe; and the hose, the metal sleeve of the duckbill valve body and the hard pipe are tightened by adopting a hoop.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, in particular to a compact duckbill valve connection structure. Background Art

[0002] With the development of society, rail vehicles have gradually become one of the main means of transportation for people to travel. Therefore, the design technology of rail vehicles has been continuously innovated and developed. Drain holes are set at the ends of the rail vehicle body to discharge the condensed water during the operation of the vehicle body.

[0003] In order to solve this problem, existing solutions usually add drainage pipes to discharge condensed water outside the vehicle. One solution is to set a drainage plug at the end of the pipe, open it once a year, and discharge the condensed water generated in the body cavity. During the drainage interval, the body generates less condensed water, and the condensed water accumulated in the cavity will not have much impact on the wooden floor. However, when the vehicle water system fails, the leaked water will enter between the iron wood floor and accumulate for a long time. In hot weather, the evaporation of water vapor causes the wooden floor to deform, affecting the appearance and comfort of passengers. The second solution is to remove the drainage plug at the end of the pipe and set the pipe to the normally open state. The condensed water generated during the operation of the vehicle and the water inflow caused by the failure can be discharged from the vehicle in time. However, the external humid air can also enter the cavity through the pipe, and after long-term operation, it will have an adverse effect on the wooden floor; at the same time, when the vehicle enters and exits the tunnel, because the pipe is in the normally open state, the pressure fluctuation will cause tinnitus to the passengers. The third solution is to set up a traditional duckbill valve connection structure. Since the internal structure of the traditional duckbill valve connection structure is complicated to install, the upper and lower positions of the duckbill valve need to be fixed at fixed points, and it occupies a large space, resulting in complex vehicle modification solutions and increased costs. Utility Model Content

[0004] The utility model provides a compact duckbill valve, which fully utilizes the small remaining installation space of current vehicles and is easy to disassemble and maintain; it can discharge condensed water in the vehicle body cavity and water leakage caused by failure in a timely manner, effectively prevent external humid air from entering between the ironwood floor, and ensure that pressure fluctuations will not affect passengers when the vehicle enters and exits the tunnel.

[0005] The technical solution of the utility model is:

[0006] The utility model provides a compact duckbill valve, comprising:

[0007] A hose with one end for connection to the rail vehicle drainage line;

[0008] a rigid tube partially inserted into the other end of the hose;

[0009] A duckbill valve body, wherein the duckbill valve body is vulcanized by a metal sleeve and a rubber part, the metal sleeve of the duckbill valve body is pressed between the hose and the hard pipe, and the rubber part of the duckbill valve body is located in the hard pipe;

[0010] The hose, the metal sleeve of the duckbill valve body and the hard pipe are tightened by clamps.

[0011] Furthermore, steps are provided inside both ends of the hose, and the metal sleeve of the duckbill valve body is pressed tightly between the step inside the other end of the hose and the hard tube.

[0012] Furthermore, a cross-shaped partition is arranged inside the rubber part of the duckbill valve body.

[0013] Furthermore, the hard tube is a metal part.

[0014] Furthermore, the hose is a rubber piece.

[0015] Compared with the prior art, the advantage of the utility model is that the duckbill valve body is installed on the drainage pipeline of condensed water of the rail vehicle. Under normal conditions, the rubber parts of the duckbill valve body are in a closed state, which can block the connection between the external humid air and the interior of the vehicle, and prevent humid air from entering between the iron and wooden floors through the pipeline, thereby adversely affecting the wooden floors. When condensed water is generated in the rail vehicle and other water pipelines fail, causing water to enter between the iron and wooden floors, the rubber parts of the duckbill valve body can be easily opened after the water enters the drainage pipeline, ensuring that the water is discharged in time, thus avoiding deformation of the floor caused by long-term accumulation of water. The duckbill valve body has a simple installation structure, and the hose not only plays the role of fixing the duckbill valve body, but also can adjust the pipeline installation tolerance. The entire structure occupies a small space and has a low modification cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the duckbill valve body in the embodiment of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of;

[0019] Figure 3 This is a schematic diagram of the hose structure in an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a compact duckbill valve in an embodiment of the utility model;

[0021] Reference numerals

[0022] 1-hose; 11-step; 2-hard tube; 3-duckbill valve body; 31-metal sleeve; 32-rubber part; 321-cross partition; 4-clamp. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] Reference Figures 1 to 4 The utility model provides a compact duckbill valve, comprising: a hose 1, a duckbill valve body 3, and a hard tube 2. The duckbill valve body 3 is vulcanized by a rubber part 32 and a metal sleeve 31, and a cross-shaped partition 321 is provided on the rubber part 32 to block the connection between the outside air and the inside of the vehicle. Under normal conditions, the rubber part 32 can block the connection between the outside air and the inside of the vehicle, and when water flows through, the rubber part 32 can be easily opened to ensure the discharge of water.

[0025] The hose 1 is a rubber part, and steps 11 are provided at the connection points of the two ends of the hose 1 .

[0026] The upper end of the hose 1 is connected to the body drainage pipeline of the rail vehicle, and the body drainage pipeline is inserted into the upper end of the hose 1. During assembly, the hose 1 can be adjusted according to the installation tolerance of the entire drainage pipeline, and the depth of the body drainage pipeline extending into the hose 1 can be adjusted to adjust the installation tolerance of the entire drainage pipeline.

[0027] The metal sleeve 31 of the duckbill valve body 3 abuts against the step 11 at the lower end of the hose 1, and the upper end of the hard tube 2 extends into the lower end of the hose 1, so that the metal sleeve 31 of the duckbill valve body 3 is pressed against the lower end step 11 of the hose 1 by the hard tube 2.

[0028] After the connection is completed, the hose 1 , the rubber part 32 of the duckbill valve body 3 and the hard pipe 2 are tightened by using the clamp 4 .

[0029] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0030] Although the preferred embodiments of the utility model embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0031] It should also be noted that, in this article, the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, relational terms such as "first" and "second" are used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements does not include those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0032] The technical solution provided by the utility model is described in detail above. The principle and implementation method of the utility model are described in this article using specific examples. The description of the above embodiments is only used to help understand the utility model, and the content of this specification should not be understood as limiting the utility model. At the same time, for those skilled in the art, according to the utility model, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived from them are still within the protection scope of the utility model.

Claims

1. A compact duckbill valve connection structure, characterized in that: include: A hose (1) having one end for connection to a drainage pipeline of a rail vehicle; a hard tube (2) partially inserted into the other end of the hose (1); A duckbill valve body (3), wherein the duckbill valve body (3) is vulcanized from a metal sleeve (31) and a rubber member (32), the metal sleeve (31) of the duckbill valve body (3) being pressed between the hose (1) and the hard pipe (2), and the rubber member (32) of the duckbill valve body (3) being located inside the hard pipe (2); Furthermore, the hose (1), the metal sleeve (31) of the duckbill valve body (3) and the hard pipe (2) are tightened by a clamp (4).

2. The compact duckbill valve connection structure according to claim 1, characterized in that: Both ends of the hose (1) are provided with steps (11), and the metal sleeve (31) of the duckbill valve body (3) is pressed between the step (11) inside the other end of the hose (1) and the hard tube (2).

3. The compact duckbill valve connection structure according to claim 1, characterized in that: A cross-shaped partition (321) is arranged inside the rubber part (32) of the duckbill valve body (3).

4. The compact duckbill valve connection structure according to claim 1, characterized in that: The hard tube (2) is a metal part.

5. The compact duckbill valve connection structure according to claim 1, characterized in that: The hose (1) is a rubber part.

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