Split nylon hose coupling for railway passenger cars

Abstract

The utility model relates to the technical field of hose joint, specifically disclose a split type nylon hose joint suitable for railway passenger car, include: connecting hose, one end of connecting hose is equipped with the hose joint, the one end fixed mounting of hose joint is close to connecting hose has the sealing shell, the outside of connecting hose is equipped with the sealing washer, the outside of one end of connecting hose is equipped with the sealing ring close to sealing shell, the utility model relieves personnel operation burden, need not to rely on thread, welding or traditional fastening mode such as sticking to reach realizes the quick assembly and disassembly effect of promotion, promotes the practicability of hose joint in the occasion of frequently replacing hose in the maintenance of railway passenger car.

Description

Technical Field

[0001] This utility model belongs to the field of hose connector technology, specifically relating to a split-type nylon hose connector suitable for railway passenger cars. Background Technology

[0002] As a crucial component of public transportation, the operational stability and maintenance efficiency of railway passenger cars directly impact operational safety and costs. In key modules such as train braking systems, pneumatic valve control systems, air conditioning and ventilation ducts, and water supply pipelines, the connection technology of hoses and fittings is a core element in ensuring the sealing and durability of fluid and gas transmission.

[0003] However, traditional flexible hose fittings are mostly made of metal and are fixed by means of threaded engagement, welding, or adhesive bonding. While such rigid connection methods can meet basic functional requirements, they have gradually revealed limitations such as bulky structure, poor weather resistance, and complex disassembly and assembly under the high-frequency operation, high-vibration conditions, and regular maintenance scenarios of railway passenger cars. These limitations make it difficult to meet the needs of rapid maintenance and component replacement in railway passenger cars, resulting in high maintenance costs and reduced practicality. Therefore, this applicant proposes a split-type nylon flexible hose fitting suitable for railway passenger cars to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a split-type nylon hose connector suitable for railway passenger cars, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A split-type nylon flexible hose connector suitable for railway passenger cars, comprising:

[0007] A connecting hose is provided at one end of the connecting hose, and a sealing shell is fixedly installed at the end of the connecting hose near the connecting hose.

[0008] The connecting hose is provided with a sealing gasket on the outside, and a sealing ring is provided on the outside of the end of the connecting hose near the sealing shell;

[0009] The sealing ring has two vertically symmetrical protrusions on its outer side, and the protrusions are fixedly installed on the outer side of the sealing ring. The sealing shell has an installation ring inside, and the inner wall of the installation ring has a through hole that matches the protrusion.

[0010] Preferably, the mounting ring has two symmetrically arranged grooves on the side near the sealing shell, and the grooves are adapted to fit the protrusions.

[0011] Preferably, a compression plate is provided inside the sealing shell and on one side of the mounting ring. Two telescopic rods are provided laterally symmetrically on one side of the compression plate. The two ends of the telescopic rods are fixedly installed to one side of the compression plate and the adjacent inner sidewall of the sealing shell, respectively.

[0012] Preferably, springs are fitted around the outside of both telescopic rods, and the two ends of the springs are fixedly connected to one side of the extrusion plate and the adjacent inner sidewall of the sealing shell, respectively.

[0013] Preferably, the inner ring walls of both the sealing gasket and the sealing ring are fixedly installed to the outer ring wall of one end of the connecting hose.

[0014] Preferably, the outer ring wall of the mounting ring is fixedly installed with the inner ring wall of the sealing shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) During installation, insert one end of the connecting hose into the sealing shell, and rotate the protrusion on the sealing ring through the through hole of the mounting ring so that the protrusion is locked into the groove to complete the initial positioning. During disassembly, the operation is reversed. The process is simple and efficient. At the same time, the cooperation between the extrusion plate and the spring not only facilitates the rotation of the protrusion in the mounting ring, but also pushes the extrusion plate after the connection is locked to further squeeze and fix the protrusion, ensuring a stable connection. This reduces the burden of personnel operation and does not require the use of traditional fastening methods such as threads, welding or adhesive to achieve a quick installation and disassembly effect. This improves the practicality of the hose connector in railway passenger car maintenance where hoses need to be replaced frequently. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the hose connector of this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled sealing shell structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the sealing shell structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the telescopic rod structure of this utility model;

[0022] In the diagram: 1. Connecting hose; 2. Hose connector; 3. Sealing shell; 4. Sealing gasket; 5. Sealing ring; 6. Protrusion; 7. Mounting ring; 8. Through hole; 9. Groove; 10. Extrusion plate; 11. Telescopic rod; 12. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1:

[0027] Please see Figures 1-5 As shown, a split-type nylon hose connector suitable for railway passenger cars includes: a connecting hose 1, a hose connector 2 at one end of the connecting hose 1, and a sealing shell 3 fixedly installed at the end of the hose connector 2 near the connecting hose 1.

[0028] A sealing gasket 4 is provided on the outside of the connecting hose 1, and a sealing ring 5 is provided on the outside of the end of the connecting hose 1 near the sealing shell 3;

[0029] The sealing ring 5 has two vertically symmetrical protrusions 6 on its outer side, and the protrusions 6 are fixedly installed on the outer side of the sealing ring 5. The sealing shell 3 has an installation ring 7 inside, and the inner ring wall of the installation ring 7 has a through hole 8 that matches the protrusions 6.

[0030] As can be seen from the above, by engaging the two protrusions 6 on the outside of one end of the connecting hose 1 with the grooves 9 on the mounting ring 7 inside the sealing shell 3, and then using the pressing plate 10 in conjunction with the mounting ring 7 to press and fix the protrusions 6, the effect of fixing one end of the connecting hose 1 to the inside of the sealing shell 3 is achieved. At the same time, the sealing gasket 4 and the sealing ring 5 can seal and block the gap between the sealing shell 3 and the connecting hose 1, thereby achieving convenient installation and removal between the connecting hose 1 and the hose connector 2. There is no need to use fastening methods such as threads, welding and adhesives, which reduces the burden of personnel operation and improves the practicality of the hose connector 2. It is suitable for railway passenger car maintenance occasions that require frequent hose replacement. Moreover, through the combination of nylon material characteristics and structure, it has advantages in terms of lightweight, corrosion resistance and easy installation, and is suitable for railway track traffic scenarios that require frequent maintenance. Its split type improves the efficiency of disassembly and assembly, and is an effective replacement for traditional metal connectors.

[0031] For details, please refer to Figure 3 As shown, the mounting ring 7 has two horizontally symmetrical grooves 9 on the side near the sealing shell 3, and the grooves 9 are adapted to the protrusions 6.

[0032] As can be seen from the above, by setting the groove 9, one end of the connecting hose 1 is inserted into the sealing shell 3, and then the two protrusions 6 on the outside of the sealing ring 5 pass through the two through holes 8 of the mounting ring 7. Then, the connecting hose 1 is rotated to drive the sealing ring 5 to rotate and move the two protrusions 6 into the groove 9, so that the groove 9 locks the protrusions 6 and prevents the connecting hose 1 from rotating. It will also lock into the sealing shell 3 on one side of the hose connector 2, so as to facilitate the installation and removal of the connecting hose 1 and the hose connector 2.

[0033] For details, please refer to Figure 4 As shown, a compression plate 10 is provided inside the sealing shell 3 and on one side of the mounting ring 7. Two telescopic rods 11 are provided on one side of the compression plate 10 in a transversely symmetrical manner. The two ends of the telescopic rods 11 are fixedly installed to one side of the compression plate 10 and the adjacent inner sidewall of the sealing shell 3, respectively.

[0034] As can be seen from the above, by setting the extrusion plate 10 and the telescopic rod 11, when the protrusion 6 is placed in the groove 9 through the through hole 8, the protrusion 6 will extrude the extrusion plate 10 and the telescopic rod 11, so that the protrusion 6 and the sealing ring 5 can pass through the mounting ring 7, and the protrusion 6 can rotate on one side of the mounting ring 7.

[0035] For details, please refer to Figure 5 As shown, springs 12 are fitted on the outside of both telescopic rods 11, and the two ends of the springs 12 are fixedly connected to one side of the extrusion plate 10 and the adjacent inner sidewall of the sealing shell 3, respectively.

[0036] As can be seen from the above, by setting the spring 12, when the protrusion 6 squeezes the extrusion plate 10 and the telescopic rod 11, it will also squeeze the spring 12. When the protrusion 6 and the groove 9 are engaged, the personnel loosen the connecting hose 1 so that the spring 12 loses the extrusion force and is elastically restored to push the extrusion plate 10, and the extrusion plate 10 squeezes one side of the protrusion 6, thereby further squeezing and fixing the protrusion 6 to achieve the effect of fixing the connecting hose 1.

[0037] refer to Figure 2 As shown, the inner ring walls of both the sealing gasket 4 and the sealing ring 5 are fixedly installed to the outer ring wall of one end of the connecting hose 1.

[0038] As can be seen from the above, by setting the sealing gasket 4 and the sealing ring 5, when the connecting hose 1 and the hose connector 2 are connected and fixed in the sealing shell 3 at one end, the sealing ring 5 can seal the gap between the inner ring wall of the mounting ring 7 and the connecting hose 1 to prevent leakage. The sealing gasket 4 can not only seal the through hole 8, but also seal the gap between the sealing shell 3 and the connecting hose 1, thereby achieving a complete seal between the connecting hose 1 and the hose connector 2 and further improving the sealing effect.

[0039] refer to Figure 1 As shown, the outer ring wall of the mounting ring 7 is fixedly installed with the inner ring wall of the sealing shell 3.

[0040] As can be seen from the above, by setting the mounting ring 7, the mounting ring 7 can limit the protrusion 6 through the groove 9, and at the same time can cooperate with the extrusion plate 10 to extrude and fix the protrusion 6.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type nylon flexible hose connector suitable for railway passenger cars, characterized in that, include: A connecting hose (1) is provided at one end of the connecting hose (1), and a hose connector (2) is fixedly installed at the end of the hose connector (2) near the connecting hose (1); The connecting hose (1) is provided with a sealing gasket (4) on the outside, and a sealing ring (5) is provided on the outside of the end of the connecting hose (1) near the sealing shell (3); The sealing ring (5) has two vertically symmetrical protrusions (6) on its outside, and the protrusions (6) are fixedly installed on the outside of the sealing ring (5). The sealing shell (3) has an installation ring (7) inside, and the inner ring wall of the installation ring (7) has a through hole (8) that matches the protrusions (6).

2. The split-type nylon flexible hose connector for railway passenger cars according to claim 1, characterized in that: The mounting ring (7) has two grooves (9) symmetrically arranged on the side near the sealing shell (3), and the grooves (9) are adapted to the protrusions (6).

3. A split-type nylon flexible hose connector for railway passenger cars according to claim 1, characterized in that: An extrusion plate (10) is provided inside the sealing shell (3) and on one side of the mounting ring (7). Two telescopic rods (11) are provided on one side of the extrusion plate (10) in a transversely symmetrical manner. The two ends of the telescopic rods (11) are fixedly installed on one side of the extrusion plate (10) and the adjacent inner sidewall of the sealing shell (3), respectively.

4. A split-type nylon flexible hose connector for railway passenger cars according to claim 3, characterized in that: Both of the telescopic rods (11) are fitted with springs (12), and the two ends of the springs (12) are fixedly connected to one side of the extrusion plate (10) and the adjacent inner sidewall of the sealing shell (3), respectively.

5. A split-type nylon flexible hose connector for railway passenger cars according to claim 1, characterized in that: The inner ring walls of the sealing gasket (4) and the sealing ring (5) are fixedly installed to the outer ring wall of one end of the connecting hose (1).

6. A split-type nylon flexible hose connector for railway passenger cars according to claim 1, characterized in that: The outer ring wall of the mounting ring (7) is fixedly installed with the inner ring wall of the sealing shell (3).

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