An integrated seal and lock mechanism

Abstract

The utility model provides an integrated closed locking mechanism, including the overflow vertical pipe for inserting the tank mouth inside of tank car, install the vertical pipe connecting piece for with outside crane pipe quick butt joint on the top of overflow vertical pipe, install the sealing assembly for with tank mouth cooperation forms the initial sealing structure in the middle part fixed of overflow vertical pipe, install the pneumatic execution unit on sealing assembly through locking mechanism support, the power output shaft of pneumatic execution unit is from top to bottom and extends to the below of sealing assembly, and install the tank mouth locking block for with tank mouth inner wall forms mechanical locking cooperation to compress sealing assembly and realizes secondary enhanced sealing on the power output shaft of pneumatic execution unit below sealing assembly, the utility model discloses safe and reliable, can realize crane pipe and tank mouth quick sealing connection, facilitate guaranteeing the normal progress of loading and unloading car operation, help to improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of loading arm technology, and in particular to an integrated sealed locking mechanism. Background Technology

[0002] In the domestic logistics and chemical storage and transportation sector, top tank trucks, as core equipment for transporting liquid media, have always been a key focus of industry attention in terms of sealing performance during loading and unloading. Currently, most loading and unloading operations of top tank trucks in China rely on the loading arm, a crucial piece of equipment, to transfer the media, and the tank opening, as the core channel for the media to enter and exit, is particularly important for its sealing.

[0003] The core principle of current mainstream sealing solutions is to lay a sealing gasket above the tank opening and use a hook structure to hook onto the inner wall of the tank opening to achieve a seal. This solution improves the sealing effect to a certain extent, but its inherent structural defects also bring new problems. The structure of this solution is relatively complex and contains multiple moving parts. These parts need to move frequently during loading and unloading operations to achieve sealing and loosening operations. When encountering viscous and easily solidified media such as crude oil, resin, and asphalt, the problem is particularly prominent. For example, during loading and unloading, some media will inevitably adhere to the surface of the moving parts. With the increase of operations, the adhered media will continue to accumulate. Because these media are viscous and easily solidify, they will gradually affect the normal movement of the moving parts, leading to increased friction between parts and obstructed movement. In severe cases, the entire mechanism may be stuck, unable to complete the sealing or loosening action, directly affecting the normal operation of loading and unloading vehicles. This not only reduces the efficiency of operation, but may also lead to safety and environmental hazards such as media leakage due to equipment failure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a safe and reliable integrated sealing and locking mechanism that can achieve a quick sealing connection between the loading arm and the tank opening, which facilitates the normal operation of loading and unloading and helps to improve operational efficiency, in order to overcome the shortcomings of the existing technology.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is an integrated sealing and locking mechanism, including a flow-through vertical pipe for insertion into the tank car opening, a vertical pipe connector for quick docking with an external loading arm installed at the top of the flow-through vertical pipe, a sealing assembly for cooperating with the tank car opening to form an initial sealing structure fixedly installed in the middle of the flow-through vertical pipe, a pneumatic actuator installed on the sealing assembly through a locking mechanism bracket, the power output shaft of the pneumatic actuator passing through the sealing assembly from top to bottom and extending to the bottom of the sealing assembly, and a tank opening locking block installed on the power output shaft of the pneumatic actuator below the sealing assembly for forming a mechanical locking fit with the inner wall of the tank car opening to compress the sealing assembly and achieve a secondary enhanced seal.

[0006] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the integrated sealing locking mechanism described above, the pneumatic actuator includes an outer tube and a valve core installed inside the outer tube. The two ends of the outer tube are sealed by an upper cover plate and a lower cover plate, respectively. A drive rod that penetrates the lower cover plate is installed on the valve core by fastening screws. A spiral groove is provided on the drive rod. A rotation limit pin for cooperating with the spiral groove is installed on the outer tube. The can opening locking block is installed on the drive rod.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the integrated sealing and locking mechanism described above, pneumatic connection pipes are connected to the outer tubes on both sides of the valve core, a guide slider is installed on the valve core, and a sealing ring is also installed on the valve core on both sides of the guide slider.

[0008] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the integrated sealing locking mechanism described above, a guide block for cooperating with the drive rod is installed on the lower cover plate, and a sealing ring for cooperating with the drive rod is installed on the guide block.

[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the integrated sealed locking mechanism described above, the vertical pipe connector is connected to the flow vertical pipe through a universal ball joint, and a gas phase return port is provided on the side of the universal ball joint.

[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the integrated sealing and locking mechanism described above, a tank mouth anti-collision barrel is also installed at the bottom of the sealing component.

[0011] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the integrated sealing and locking mechanism described above, a reciprocating dynamic seal for cooperating with the power output shaft of the pneumatic actuator is also installed on the sealing component.

[0012] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the integrated sealing and locking mechanism described above, the sealing component is an annular sealing gasket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Safe and reliable sealing:

[0015] This utility model forms an initial sealing structure by cooperating the sealing component with the tank truck opening, and the tank opening locking block can form a mechanical locking fit with the inner wall of the tank truck opening to compress the sealing component to achieve a secondary enhanced seal, ensuring safe and reliable loading and unloading operations.

[0016] 2. Quick connection operation:

[0017] The present invention features a top-mounted vertical pipe connector for the overflow vertical pipe, which can be quickly connected to an external loading arm to achieve a rapid and sealed connection between the loading arm and the tank opening, thus ensuring the normal operation of loading and unloading.

[0018] 3. Effectively improves efficiency:

[0019] The integrated design of this utility model combines sealing and locking functions, and the quick connection and reliable sealing reduce preparation and waiting time, thus helping to improve overall work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the pneumatic actuator of this utility model;

[0022] Figure 3 This is a diagram showing one usage state of the present invention. Detailed Implementation

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

[0024] Reference Figure 1-3 An integrated sealing and locking mechanism is a device specifically designed for tank truck loading and unloading operations. It aims to achieve a rapid sealing connection between the loading arm and the tank opening, ensuring operational safety and improving efficiency. The mechanism mainly consists of several parts, including a flow-through vertical pipe 1, a vertical pipe connector 2, a sealing assembly, a pneumatic actuator 5, and a tank opening locking block 7. These parts work together to complete the sealing and locking functions. Specifically:

[0025] The mechanism includes a flow-through vertical pipe 1 for insertion into the tank car opening, serving as a channel for material flow. It also provides a mounting base for other components, ensuring that the entire mechanism can be accurately positioned at the tank car opening and achieve effective cooperation with the opening.

[0026] A vertical pipe connector 2 is installed at the top of the overflow vertical pipe 1 for quick connection with an external loading arm, facilitating connection with the loading arm in a short time, reducing preparation time, and improving overall operational efficiency. Preferably, the vertical pipe connector 2 is connected to the overflow vertical pipe 1 via a universal ball joint 3. The design of the universal ball joint 3 gives the vertical pipe connector 2 a certain degree of flexibility, allowing it to rotate freely within a certain range, thus better adapting to the loading arm connection requirements at different angles. A gas phase return port 4 is provided on the side of the universal ball joint 3. During loading and unloading operations, gaseous substances may be generated inside the tank truck. The function of the gas phase return port 4 is to provide a return channel for these gaseous substances, preventing excessive pressure inside the tank and ensuring safe operation.

[0027] A sealing component is fixedly installed in the middle of the flow-through vertical pipe 1 to form an initial sealing structure with the tank opening of the tank truck. When the flow-through vertical pipe 1 is inserted into the tank opening of the tank truck, the sealing component and the tank opening form an initial sealing structure, which can effectively prevent material leakage during loading and unloading and provide a basic guarantee for subsequent secondary enhanced sealing. Preferably, a tank opening anti-collision barrel 8 is also installed at the bottom of the sealing component to play a buffering and protective role, avoid damage to the sealing component, and extend its service life.

[0028] Preferably, the sealing component is an annular sealing gasket, which is used to form a good fit with the tank opening of the tank truck to ensure the sealing effect. The sealing gasket is usually made of materials with good elasticity and sealing performance, such as rubber, which can deform under certain pressure to fill the gap between the tank opening and the overflow pipe 1 to achieve initial sealing.

[0029] A pneumatic actuator 5 is mounted on the sealing assembly via a locking mechanism bracket 6. The power output shaft of the pneumatic actuator 5 runs from top to bottom through the sealing assembly and extends to its lower part. A tank opening locking block 7 is mounted on the power output shaft of the pneumatic actuator 5 below the sealing assembly to form a mechanical locking fit with the inner wall of the tank truck opening, thereby compressing the sealing assembly to achieve a secondary enhanced seal. After the sealing assembly is installed at the tank truck opening, the pneumatic actuator 5 can drive the tank opening locking block 7 to rotate and move via its power output shaft, so as to mechanically lock it with the inner wall of the tank opening from the inside, and further deform the sealing assembly to fill the gap between the tank opening and the overflow pipe 1, thereby achieving a secondary enhanced seal. This greatly improves the reliability of the seal, effectively prevents material leakage, and ensures the safe operation of loading and unloading. Preferably, a reciprocating dynamic seal is also mounted on the sealing assembly to cooperate with the power output shaft of the pneumatic actuator 5.

[0030] Preferably, the pneumatic actuator 5 includes an outer tube 51 and a valve core 52 installed inside the outer tube 51. Both ends of the outer tube 51 are sealed by an upper cover plate 53 and a lower cover plate 54, respectively, providing a stable environment for the movement of the valve core 52. A drive rod 56, penetrating the lower cover plate 54, is installed on the valve core 52 by fastening screws 55. A spiral groove 57 is provided on the drive rod 56. A rotation limiting pin 58, which cooperates with the spiral groove 57, is installed on the outer tube 51. A tank opening locking block 7 is installed on the drive rod 56. When the valve core 52 moves inside the outer tube 51, the drive rod 56 moves up and down accordingly. Simultaneously, the cooperation between the spiral groove 57 and the rotation limiting pin 58 causes the drive rod 56 to rotate during its up-and-down movement. This design provides a specific trajectory and power for the movement of the tank opening locking block 7, facilitating both the insertion of the tank opening locking block 7 into the tank truck opening and the locking of the tank truck opening.

[0031] Pneumatic control connecting pipes 9 are connected to the outer tubes 51 on both sides of the valve core 52. Compressed air can be introduced into the pneumatic actuator 5 through the pneumatic control connecting pipes 9 to control the movement direction and speed of the valve core 52. When air is supplied to one side of the pneumatic control connecting pipe 9, the valve core 52 will move to the other side, thereby driving the drive rod 56 and the can opening locking block 7 to move, realizing the locking or unlocking function.

[0032] A guide slider 59 is installed on the valve core 52. The guide slider 59 can slide inside the outer tube 51 to provide guidance for the movement of the valve core 52, ensuring that the movement of the valve core 52 is smooth and accurate. Sealing rings are also installed on the valve core 52 on both sides of the guide slider 59. The sealing rings can prevent gas from leaking from the gap between the valve core 52 and the outer tube 51, ensuring the airtightness of the pneumatic actuator 5.

[0033] A guide block 60 is installed on the lower cover plate 54 to cooperate with the drive rod 56. The guide block 60 can restrict the movement direction of the drive rod 56, so that it can only reciprocate along the axial direction, preventing the drive rod 56 from deviating during movement. A sealing ring 61 is installed on the guide block 60 to cooperate with the drive rod 56, further preventing gas leakage.

[0034] The working principle of the integrated sealing and locking mechanism provided in this application is as follows:

[0035] During tank truck loading and unloading operations, the overflow pipe 1 is first inserted into the tank truck opening to form an initial seal between the sealing assembly and the opening. Then, compressed air is introduced into the pneumatic actuator unit 5 through the pneumatic control connection pipe 9 to control the movement of the valve core 52. The valve core 52 drives the drive rod 56 to move upward. The spiral groove 57 on the drive rod 56 cooperates with the rotation limit pin 58 to make the drive rod 56 rotate. At the same time, the drive rod 56 drives the tank opening locking block 7 to move upward and form a mechanical locking fit with the inner wall of the tank truck opening. The compression sealing assembly achieves a secondary enhanced seal. At this time, the pipe connector 2 is quickly connected to the external loading arm, and the loading and unloading of materials can begin. After the operation is completed, the air pressure in the pneumatic actuator unit 5 is changed through the pneumatic control connection pipe 9 to make the tank opening locking block 7 move downward and rotate to unlock. Finally, the overflow pipe 1 is removed to complete the entire operation.

[0036] This utility model's integrated sealing and locking mechanism integrates sealing and locking functions through innovative structural design, achieving a rapid sealing connection between the loading arm and the tank opening. It effectively solves the problems existing in the prior art and has significant advantages such as safety, reliability, and high operating efficiency.

Claims

1. An integrated sealing and locking mechanism, characterized in that: The system includes a flow-through vertical pipe for insertion into the tank truck opening. A vertical pipe connector for quick docking with an external loading arm is installed at the top of the flow-through vertical pipe. A sealing assembly for forming an initial sealing structure with the tank truck opening is fixedly installed in the middle of the flow-through vertical pipe. A pneumatic actuator is mounted on the sealing assembly via a locking mechanism bracket. The power output shaft of the pneumatic actuator passes through the sealing assembly from top to bottom and extends to the bottom of the sealing assembly. A tank opening locking block is installed on the power output shaft of the pneumatic actuator below the sealing assembly to form a mechanical locking fit with the inner wall of the tank truck opening to compress the sealing assembly and achieve a secondary enhanced seal.

2. The integrated sealing and locking mechanism according to claim 1, characterized in that: The pneumatic actuator includes an outer tube and a valve core installed inside the outer tube. The two ends of the outer tube are sealed by an upper cover plate and a lower cover plate, respectively. A drive rod that penetrates the lower cover plate is installed on the valve core by fastening screws. A spiral groove is provided on the drive rod. A rotation limit pin for cooperating with the spiral groove is installed on the outer tube. A can opening locking block is installed on the drive rod.

3. The integrated sealing and locking mechanism according to claim 2, characterized in that: Pneumatic control connecting pipes are connected to the outer tubes on both sides of the valve core. A guide slider is installed on the valve core, and a sealing ring is also installed on the valve core on both sides of the guide slider.

4. The integrated sealing and locking mechanism according to claim 2, characterized in that: A guide block for cooperating with the drive rod is installed on the lower cover plate, and a sealing ring for cooperating with the drive rod is installed on the guide block.

5. The integrated sealing and locking mechanism according to claim 1, characterized in that: The vertical pipe connector is connected to the flow vertical pipe through a universal ball joint, and a gas phase return port is provided on the side of the universal ball joint.

6. The integrated sealing and locking mechanism according to claim 1, characterized in that: A can opening anti-collision barrel is also installed at the bottom of the sealing assembly.

7. The integrated sealing and locking mechanism according to claim 1, characterized in that: A reciprocating dynamic seal for cooperating with the power output shaft of the pneumatic actuator is also installed on the sealing assembly.

8. The integrated sealing and locking mechanism according to claim 1 or 7, characterized in that: The sealing component is an annular sealing gasket.

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