Automatic falling-off quick connector for sewage suction port of train

Abstract

The utility model belongs to the technical field of sewage suction ports of trains, particularly relates to an automatic falling-off quick connector for a sewage suction port of a train, and aims to solve the problems that a pipeline and sewage suction equipment are taken away by the train if the connector is forgotten to be pulled out and the train is driven out after the sewage suction operation is finished, the sewage suction equipment is damaged, and the sewage suction equipment cannot be damaged. According to the technical scheme, the train sewage draining device comprises a rubber connector, a rubber sleeve, a rubber sleeve, a rubber sleeve, a rubber sleeve and a rubber sleeve, and the rubber sleeve is used for being connected with a train sewage draining exit; the metal connecting piece is connected with the rubber joint; and the screwed joint is mounted on the metal connecting piece and is used for being connected with a sewage suction pipeline. Flexible connection is achieved through the rubber connector, the rubber connector clamps the sewage outlet through negative pressure in the sewage suction pipeline, and after sewage suction is finished, even if the connector is forgotten to be pulled out and a train runs out, the connector can be naturally pulled out under the action of external force.

Description

TECHNICAL FIELD

[0001] The utility model relates to train sewage suction mouth technical field especially, relates to a train sewage suction mouth automatic shedding quick connector. BACKGROUND

[0002] The existing train sewage operation is through the pipeline from train sewage outlet and sucks out the dirt, and the existing pipeline connector and train sewage outlet are rigid connection, if forgetting pulling out the interface after the sewage operation is completed, and the train drives out, the train will take the pipeline and sewage suction equipment together, not only will damage the sewage suction equipment, also will cause the safety risk to the surrounding personnel and other equipment. Therefore we proposed train sewage suction mouth automatic shedding quick connector to solve the above problems. INVENTION CONTENTS

[0003] The utility model discloses a train sewage suction mouth automatic shedding quick connector, which can prevent the train from taking the pipeline and sewage suction equipment together when the train drives out after the sewage operation is completed, thereby avoiding the damage of the sewage suction equipment and the safety risk to the surrounding personnel and other equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The train sewage suction mouth automatic shedding quick connector comprises:

[0006] The rubber connector is used for connecting the train sewage outlet.

[0007] The metal connecting piece is connected with the rubber connector.

[0008] The threaded connector is installed on the metal connecting piece and is used for connecting with the sewage pipeline.

[0009] Preferably, the rubber connector is a hollow structure and is a double-layer cylindrical structure as a whole, the rubber connector is composed of an inner wall and an outer wall, the upper part of the rubber connector is closed, and the lower part of the rubber connector is open.

[0010] Preferably, the inner wall of the rubber connector is provided with an annular protrusion, the annular protrusion is used for cooperating with the recessed part on the train sewage outlet to realize clamping.

[0011] Preferably, the rubber connector is provided with a sheet-shaped protrusion between the inner wall and the outer wall, the sheet-shaped protrusion is used for increasing the deformation of the rubber connector under the negative pressure state, and the force of the rubber connector buckling with the train sewage outlet is increased.

[0012] Preferably, the metal connecting piece is a cylindrical structure, the metal connecting piece is inserted into the cavity of the rubber connector, is used for sealing, and prevents the lower part of the rubber connector from deforming.

[0013] Preferably, the rubber joint is provided with a buckle, the metal connecting piece is provided with a fastener, and the buckle is matched with the fastener.

[0014] Compared with the prior art, the train sewage suction port automatic falling quick connector has the advantages that:

[0015] The rubber joint is adopted to realize flexible connection, the rubber joint is clamped on the sewage discharge port through negative pressure in the sewage suction pipeline, and even if the joint is forgotten to be pulled out, the joint will be pulled out naturally under external force after the train drives out. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A structure diagram of the train sewage suction port automatic falling quick connector is provided in the utility model.

[0017] Fig. 2 A structure diagram of the train sewage suction port automatic falling quick connector is provided in the utility model.

[0018] In the drawing: 1, rubber joint; 2, metal connecting piece; 3, threaded joint; 4, train sewage discharge port; 5, annular protrusion; 6, sheet-shaped protrusion. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] Referring to Figs. 1-2 The train sewage suction port automatic falling quick connector comprises:

[0021] The rubber joint 1 is used for connecting the train sewage discharge port 4.

[0022] The metal connecting piece 2 is connected with the rubber joint 1.

[0023] The threaded joint 3 is installed on the metal connecting piece 2 and is used for being connected with the sewage suction pipeline.

[0024] In the embodiment, the rubber joint 1 is a hollow structure and is a double-layer cylindrical structure, the rubber joint 1 is composed of an inner wall and an outer wall, the upper part of the rubber joint 1 is closed, and the lower part of the rubber joint 1 is open.

[0025] In the embodiment, the inner wall of the rubber joint 1 is provided with the annular protrusion 5, the annular protrusion 5 is used for being matched with the recessed part on the train sewage discharge port 4 to realize clamping.

[0026] In the embodiment, the inner wall and the outer wall of the rubber joint 1 are provided with the sheet-shaped protrusion 6, the sheet-shaped protrusion 6 is used for increasing the deformation of the rubber joint 1 under the negative pressure state and increasing the force of the rubber joint 1 and the train sewage discharge port 4.

[0027] In this embodiment, the metal connecting piece 2 is a cylindrical structure, which is inserted into the cavity of the rubber joint 1 for sealing and preventing the deformation of the lower part of the rubber joint 1.

[0028] In this embodiment, a buckle is mounted on the rubber joint 1, and a fastener is arranged on the metal connecting piece 2, and the buckle cooperates with the fastener.

[0029] Working principle: when in use, the rubber joint 1 is sleeved on the train exhaust 4, the inner wall of the rubber joint 1 is centrally provided with a ring-shaped protrusion 5, which cooperates with the recessed part on the train exhaust 4 to achieve clamping connection, the threaded joint 3 is connected with the sewage suction pipeline, and sewage suction is performed; after sewage suction, even if the user forgets to pull out the joint, the rubber joint 1 will be pulled out from the train exhaust 4 under the action of external force, the structure is simpler, the weight is lighter, and power driving is not required.

[0030] The above is only the preferred specific embodiment of the present embodiment, but the protection scope of the present embodiment is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the present embodiment within the technical range disclosed by the present embodiment, which should be covered in the protection scope of the present embodiment.

Claims

1. A train automatic suction port falling quick connector, characterized in that, The utility model relates to a train sewage discharge port connecting device, which comprises the following parts: a rubber joint (1) for connecting a train sewage discharge port (4); a metal connecting piece (2) connected with the rubber joint (1); a threaded joint (3) installed on the metal connecting piece (2) and used for connecting with a sewage suction pipeline.

2. The automatic dropping quick connector of the train sewage suction port according to claim 1, characterized in that, The rubber joint (1) is a hollow structure and has a double-layer cylindrical shape, and the rubber joint (1) is composed of an inner wall and an outer wall, the upper part of the rubber joint (1) is closed, and the lower part of the rubber joint (1) is open.

3. The automatic dropping quick connector of the train sewage suction port according to claim 2, characterized in that, The inner wall of the rubber joint (1) is provided with a ring-shaped protrusion (5) in the center, the ring-shaped protrusion (5) is used for cooperating with a recessed part on the train sewage discharge port (4) to realize clamping.

4. The automatic dropping quick connector of the train sewage suction port according to claim 3, characterized in that, The inner wall and the outer wall of the rubber joint (1) are provided with a sheet-shaped protrusion (6) therebetween, the sheet-shaped protrusion (6) is used for increasing the deformation of the rubber joint (1) under a negative pressure state and increasing the force of clamping of the rubber joint (1) with the train sewage discharge port (4).

5. The automatic dropping quick coupling of the train sewage suction port according to claim 4, characterized in that, The metal connecting piece (2) has a cylindrical structure, the metal connecting piece (2) is used for being inserted into the cavity of the rubber joint (1) to seal and prevent the lower part of the rubber joint (1) from deforming.

6. The automatic dropping quick coupling of the train sewage suction port according to claim 5, characterized in that, The rubber joint (1) is provided with a buckle, the metal connecting piece (2) is provided with a fastener, and the buckle cooperates with the fastener.

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