Self-closing anti-disengagement quick coupling for tank car

Abstract

The utility model discloses a self-closing anti-disengagement quick coupling for a tank car, which comprises a quick coupling sealing cover, the right side of the quick coupling sealing cover is provided with a quick coupling for the tank car, the quick coupling for the tank car comprises a spring locking device, a locking handle, a coupling body and a sealing ring, and the spring locking device is arranged on the outer surface of the coupling body. By arranging the tank car quick connector, the connecting speed of the connector can be increased, the tank car and the pipeline can be quickly connected together in a butt joint mode, and by arranging the spring locking device, when the tank car quick connector is connected with the pipeline, the pipeline and the tank car quick connector can be tightly connected without loosening. According to the self-closing anti-disengagement quick coupling for the tank car, the inductive switch ensures that the quick coupling is correctly locked in place. The anti-falling hoop prevents the quick connector handle from falling off in the extreme state, so that the connector is separated from the tank car, and liquid leakage is avoided. And after the self-closing valve core is disconnected, liquid in the pipeline is prevented from leaking.

Description

Technical Field

[0001] The utility model relates to the technical field of unloading devices, in particular to a self-closing and anti-slip quick connector for a tank truck. Background Art

[0002] As a key piece of equipment in the material handling industry, tank truck quick connectors are widely used in numerous industries, including the petroleum, chemical, and gas industries, due to their efficiency and convenience. Their sophisticated working principle, incorporating the wisdom of engineering and fluid mechanics, ensures the safe and rapid transfer of materials. Tank truck quick connectors primarily consist of a male connector and a female connector, which adapt to each other and operate in tandem. The male connector is typically installed at the tank truck's discharge pipe port and features a built-in movable valve core and positioning mechanism. The female connector, located on the side of the storage facility or conveying pipeline receiving the material, is equipped with a sealing chamber, a locking device, and a guide mechanism.

[0003] For example, the utility model with the announcement number CN208487315U discloses a stainless steel tank truck quick connector, including a connector body, a long pull rod installed on the top of the connector body, a grip rod installed on the top of the long pull rod, an internal thread fixing bolt installed on one side of the long pull rod, a plug connected to the bottom of the long pull rod, an O-ring provided on the side wall of the plug, a sealing ring cut on the bottom of the O-ring, a mounting cavity provided inside the connector body, a connector ear mounted on one side of the mounting cavity, an ear mount fixing member installed on one side of the connector ear mount, and a fixed connection port installed on the bottom of the ear mount fixing member. The utility model adopts a sleeve-type structural design, with a tripod-shaped safety feature on the long handle. When it needs to be pulled out, just pop up the connector ear, hold the grip rod and pull it up hard to use it, otherwise just lock the ear. It can be used without training, is convenient, safe, durable and simple. The connector body is made of high-quality stainless steel with good hardness and corrosion resistance, and has good corrosion resistance in both oxidizing and reducing media.

[0004] Similar to the above application, there are still the following deficiencies:

[0005] The control center cannot confirm the locking status of the connector, and the connector handle does not have a separate anti-disconnection device, so liquid will leak in the pipeline after disconnection. Utility Model Content

[0006] The utility model discloses a self-closing anti-detachment quick connector for a tank truck, which aims to solve the technical problem that a control center cannot confirm the locking state of the connector, the connector handle has no independent anti-detachment device, and liquid leaks in the pipeline after disconnection.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A self-closing and anti-detachment tank truck quick connector includes a quick connector cover. A tank truck quick connector is provided on the right side of the quick connector cover. The tank truck quick connector includes a spring locking device, a locking handle, a connector body and a sealing ring. The spring locking device is provided on the outer surface of the connector body, and the sealing ring is provided on the inner wall of the connector body.

[0009] By setting up a tank truck quick connector, the speed of connector connection can be increased, and the tank truck and the pipeline can be quickly docked together. By setting up a spring locking device, when the tank truck quick connector and the pipeline are connected together, the pipeline and the tank truck quick connector can be tightly connected without loosening. By setting up a sealing ring, the sealing of the inner wall of the connector body can be increased.

[0010] In a preferred embodiment, the tank truck quick connector includes an anti-slip device, the lower surface of the anti-slip device is fixedly connected to a guide rail, the guide rail is fixedly connected to the connector body, and a signal sensing switch is provided on the outer side of the anti-slip device.

[0011] The tank truck quick connector and anti-slip device are integrated into a single design. A guide rail is designed on the tank truck quick connector, and the anti-slip device slides within the rail without separating from the tank truck quick connector. Guide rail control makes the anti-slip effect more precise and convenient. The anti-slip device is also equipped with a signal sensor switch, allowing the main control room to monitor the status of the pipeline end in real time, further improving the information-based loading and unloading system.

[0012] In a preferred solution, one end of the connector body away from the quick connector cover is fixedly connected to an internal threaded interface, which is connected to the pipeline. The tank truck quick connector includes a self-closing valve core, which is arranged on the inner wall of the connector body. The end of the self-closing valve core is provided with a suspended three-claw baffle. The connector body is a special connector for tank trucks, and a locking screw is provided on the top of the anti-slip device.

[0013] By setting an internal thread interface, the connection between the connector body and the pipeline can be made more sealed to prevent liquid leakage. By setting a self-closing valve core and a suspended three-claw baffle at the end, the tank truck quick connector and the tank truck interface can be disengaged and automatically closed without manual operation, which is safer, more convenient and quicker. At the same time, it can prevent large amounts of liquid leakage, reduce residual liquid, and prevent residual liquid dripping. The connector body has been widely used in the chemical industry, is easy to use, and does not require special operation training.

[0014] As can be seen from the above, a self-closing anti-slip tank car quick connector has the following improvements and advantages compared with the existing technology:

[0015] A sensor switch ensures the quick connector is properly locked and securely in place. The anti-drop clamp prevents the quick connector handle from detaching in extreme conditions, potentially causing the connector to separate from the tank truck and leaking liquid. The self-closing valve core prevents liquid leakage in the pipeline after disconnection. This connector is designed specifically for tank trucks and is widely used in the chemical industry. It is easy to use and requires no specialized operator training. The connector is available in various materials, including 304 stainless steel, 316L stainless steel, and brass, to meet various operating environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a self-closing and anti-slip tank truck quick connector proposed by the utility model.

[0017] Figure 2 This is a schematic cross-sectional view of the structure of a self-closing and anti-slip tank truck quick connector proposed by the utility model.

[0018] In the attached figure: 1. Quick connector cover; 2. Spring locking device; 3. Anti-slip device; 4. Guide rail; 5. Connector body; 6. Internal thread interface; 7. Self-closing valve core; 8. Signal sensing switch; 9. Locking handle; 10. Sealing ring; 11. Tank truck quick connector; 12. Suspended three-claw baffle; 13. Locking screw. DETAILED DESCRIPTION

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

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] The utility model discloses a self-closing anti-dropout tank truck quick connector, which is mainly used in scenarios where liquid leaks from a pipeline after disconnection.

[0022] Reference Figure 1 and Figure 2A self-closing and anti-detachment tank truck quick connector comprises a quick connector cover 1, and a tank truck quick connector 11 is arranged on the right side of the quick connector cover 1. The tank truck quick connector 11 comprises a spring locking device 2, a locking handle 9, a connector body 5 and a sealing ring 10. The spring locking device 2 is arranged on the outer surface of the connector body 5, and the sealing ring 10 is arranged at the inner wall of the connector body 5. By arranging the tank truck quick connector 11, the speed of connector connection can be increased, and the tank truck and the pipeline can be quickly docked together. By arranging the spring locking device 2, when the tank truck quick connector 11 is connected to the pipeline, the pipeline and the tank truck quick connector 11 can be tightly connected without loosening. By arranging the sealing ring 10, the sealing of the inner wall of the connector body 5 can be increased.

[0023] Reference Figure 1 and Figure 2 The closure 12 of the embodiment of the present invention is a kind of special closure for tank truck, and it is convenient to use and convenient to operate.

[0024] Working principle: The loading and unloading of the joint is completed in two steps. When the joint starts to load and unload the truck, the first step is to press the spring locking device 2 of the quick joint, open the self-locking pin of the locking handle 9, and turn the locking handle 9 to the limit position. The quick joint and the interface on the tank truck are docked. At the same time, the tank truck interface contacts the suspended three-claw baffle 12. When the docking is in place, the self-closing valve core 7 is pushed open, and then the locking handle 9 is reset until the spring pin automatically locks the locking handle 9 to prevent the locking handle 9 from being disengaged during the loading and unloading process. The locking handle 9 is reset and the joint on the tank truck is locked.

[0025] Step 2: Slide the anti-slip device 3 with the guide rail into place, tighten the locking screw 13, the anti-slip device 3 will lock the locking handle 9, and at the same time, the signal sensing switch 8 will be triggered. The main control room will receive the signal that the quick connector is connected and the anti-slip device 3 is engaged, confirming that it can be loaded safely.

[0026] After the work is completed and the pipeline is depressurized, loosen the locking screw 13 of the anti-slip device 3, reset the anti-slip device 3, press the quick connector spring, open the self-locking pin of the locking handle 9, turn the locking handle 9 to the limit position, the tank truck quick connector 11 and the tank truck are disengaged, and the self-closing valve core 7 is automatically closed, the crane pipe is reset, and the loading and unloading work is completed.

[0027] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A self-closing anti-dropout tank car quick connector, comprising a quick connector cover (1), characterized in that; A tank truck quick connector (11) is provided on the right side of the quick connector cover (1). The tank truck quick connector (11) comprises a spring locking device (2), a locking handle (9), a connector body (5) and a sealing ring (10). The spring locking device (2) is provided on the outer surface of the connector body (5), and the sealing ring (10) is provided on the inner wall of the connector body (5).

2. A self-closing anti-slip tank car quick connector according to claim 1, characterized in that: The tank truck quick connector (11) includes an anti-slip device (3), a guide rail (4) is provided on the lower surface of the anti-slip device (3), and the guide rail (4) is fixedly connected to the connector body (5).

3. The self-closing anti-slip tank car quick connector according to claim 2, characterized in that: A signal induction switch (8) is provided on the outer side of the anti-slip device (3).

4. The self-closing anti-slip tank car quick connector according to claim 1, characterized in that: One end of the connector body (5) away from the quick connector cover (1) is fixedly connected to an internal threaded interface (6), and the internal threaded interface (6) is connected to a pipeline.

5. The self-closing anti-slip tank car quick connector according to claim 1, characterized in that: The tank truck quick connector (11) comprises a self-closing valve core (7), which is arranged on the inner wall of the connector body (5), and a suspended three-claw baffle (12) is provided at the end of the self-closing valve core (7).

6. The self-closing anti-slip tank car quick connector according to claim 1, characterized in that: The joint body (5) is a special joint for tank trucks.

7. The self-closing anti-slip tank car quick connector according to claim 2, characterized in that: A locking screw (13) is provided on the top of the anti-slip device (3).

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