Mechanical linkage liquid connection mechanism for loading truck by hose

Abstract

A kind of mechanical linkage liquid connection mechanism for loading crane, including liquid receiving tray I and liquid receiving tray II for collecting residual liquid in vertical pipe after crane homing, liquid receiving tray I is transversely installed on the vertical pipe of crane, liquid receiving tray II is rotatably installed on the vertical pipe of crane above liquid receiving tray I by liquid receiving tray rotating arm, spring cylinder is installed on the outer arm of crane by spring cylinder suspension arm for matching the rotation of liquid receiving tray II, spring cylinder suspension arm is installed on the outer arm of crane, one end of spring cylinder is hinged on spring cylinder suspension arm, the other end of spring cylinder is hinged with liquid receiving tray rotating arm;Residual liquid backflow port is further provided in liquid receiving tray II, residual liquid backflow port is communicated with liquid receiving tray I by backflow hose.This application has the advantages of reasonable design, simple and convenient, safe and reliable, without manual climbing and hanging liquid receiving barrel, which helps to reduce safety risk and improve efficiency.

Description

Technical Field

[0001] This utility model relates to the field of loading arm technology, and in particular to a mechanical linkage liquid receiving mechanism for loading arm. Background Technology

[0002] Currently, material transportation in the petrochemical industry largely relies on trucks and tank cars. With increasing national safety and environmental regulations, the requirements for material leakage and liquid contact during loading and unloading are becoming increasingly stringent. There are standardized requirements from top to bottom loading, and cases of fires caused by leaks are frequent, resulting in resource waste and environmental pollution. The traditional solution to this problem is to manually hang liquid-receiving tanks, but this method has significant drawbacks: low efficiency and requiring operators to climb to the top of the tank car, greatly increasing the risk of falls and posing a major safety hazard. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a mechanical linkage liquid receiving mechanism for loading arms that is reasonably designed, simple and convenient, safe and reliable, eliminates the need for manual climbing to hang the liquid receiving tank, helps reduce safety risks and improve efficiency.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is a mechanical linkage liquid receiving mechanism for loading arms, including a liquid receiving tray I and a liquid receiving tray II for collecting residual liquid in the vertical tube after the loading arm is returned to its position. The liquid receiving tray I is horizontally installed on the vertical tube of the loading arm, and the liquid receiving tray II is rotatably installed on the vertical tube of the loading arm above the liquid receiving tray I via a liquid receiving tray rotating arm. A spring cylinder is installed on the outer arm of the loading arm via a spring cylinder suspension arm for cooperating with the rotation of the liquid receiving tray II. The spring cylinder suspension arm is installed on the outer arm of the loading arm, one end of the spring cylinder is hinged to the spring cylinder suspension arm, and the other end of the spring cylinder is hinged to the liquid receiving tray rotating arm. A residual liquid return port is also provided in the liquid receiving tray II, and the residual liquid return port is connected to the liquid receiving tray I via a return hose.

[0005] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the mechanical linkage liquid receiving mechanism for loading arms described above, the liquid receiving tray II is a double-layer liquid receiving tray.

[0006] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the mechanical linkage liquid receiving mechanism for loading arms described above, a horizontally inclined guide plate is provided inside the liquid receiving tray II. The two sides and the higher end of the guide plate are fixedly connected to the inner wall of the liquid receiving tray II. A flow guiding gap is left between the lower end of the guide plate and the inner wall of the liquid receiving tray II. The residual liquid return port is provided on the liquid receiving tray II below the guide plate.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the mechanical linkage liquid receiving mechanism for loading arms described above, a liquid receiving tray suspension arm is installed on the vertical tube of the loading arm, and the liquid receiving tray rotating arm is rotatably connected to the liquid receiving tray suspension arm through a hinge.

[0008] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the mechanical linkage liquid receiving mechanism for loading arms described above, the length of the rotating arm of the liquid receiving plate is greater than the length between the hinge and the bottom of the vertical tube of the loading arm.

[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the mechanical linkage liquid receiving mechanism for loading arms described above, the liquid receiving tray I is a fully enclosed structure, a vent pipe is provided at the top of the liquid receiving tray I, and a drain pipe with a switch valve is provided at the bottom of the liquid receiving tray I.

[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the mechanical linkage liquid receiving mechanism for loading arms described above, the liquid receiving plate I is generally funnel-shaped and the liquid receiving plate II is generally cylindrical.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The liquid receiving trays I and II of the liquid receiving mechanism fully consider the collection needs of residual liquid in the vertical tube after the loading arm is returned to its position. They can comprehensively and effectively receive residual liquid, avoiding environmental pollution and resource waste caused by residual liquid dripping. At the same time, the centralized collection of residual liquid also facilitates subsequent treatment and recycling.

[0013] 2. This utility model uses a spring cylinder in conjunction with the liquid receiving tray II to enable the liquid receiving tray II to accurately reach the designated position for residual liquid collection as the loading arm moves, which greatly shortens the liquid receiving time, improves the overall efficiency of loading arm loading, and eliminates the need for manual climbing to hang the liquid receiving bucket, making it safe and convenient.

[0014] 3. The liquid receiving mechanism has a simple and clear structure, and each component is easy to disassemble and install, making it convenient for operators to perform daily maintenance. In addition, the low cost, convenient maintenance, and lack of external influence are also major highlights of this liquid receiving mechanism!

[0015] 4. This utility model can effectively solve the current situation of manually hanging and emptying the collection tank, and break through the last barrier of fully automatic and intelligent loading arms, so as to take a solid step towards the wider application of fully automatic and intelligent loading arms in chemical explosion-proof loading areas and hazardous chemical areas! Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of one usage state of the present invention;

[0018] Figure 3 This is a schematic diagram of the liquid receiving tray I of this utility model. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-3 A mechanical linkage liquid receiving mechanism for loading arms includes a liquid receiving tray I10 and a liquid receiving tray II6 for collecting residual liquid in the vertical tube 11 after the loading arms are returned to their position. The liquid receiving tray II6 is used to cooperate with the vertical tube 11 to collect residual liquid after the vertical tube 11 is loaded into the vehicle. The liquid receiving tray I10 is used to cooperate with the liquid receiving tray II6 to centrally store the residual liquid collected by the liquid receiving tray II6 for subsequent centralized processing, such as loading it into the tanker truck during loading.

[0021] Specifically:

[0022] The receiving tray I10 is horizontally mounted on the vertical tube 11 of the loading arm. The receiving tray II6 is rotatably mounted on the vertical tube 11 of the loading arm above the receiving tray I10 via the receiving tray rotating arm 5. The receiving tray rotating arm 5 is used to extend the lever arm, so that the receiving tray II6 can rotate better for receiving liquid. The receiving tray suspension arm 3 is installed on the vertical tube 11 of the loading arm. The receiving tray rotating arm 5 is rotatably connected to the receiving tray suspension arm 3 via the hinge 4. The receiving tray suspension arm 3 is used to provide a rotation fulcrum for the receiving tray II6, ensuring that it rotates stably around the axis of the vertical tube 11. The hinge 4 allows the receiving tray II6 to rotate freely, while limiting its axial displacement.

[0023] Preferably, the length of the liquid receiving tray rotating arm 5 is greater than the length between the hinge 4 and the bottom of the vertical tube 11 of the loading arm, ensuring that the liquid receiving tray II6 can be moved below the vertical tube 11 for liquid receiving operation.

[0024] To enable the receiving tray II6 to move in sync with the loading arm, a spring cylinder 1 is mounted on the outer arm 12 of the loading arm via a spring cylinder suspension arm 2. The spring cylinder suspension arm 2 provides a stable fulcrum for the spring cylinder 1, ensuring that its extension / compression direction is consistent with the movement trajectory of the loading arm. The spring cylinder suspension arm 2 is mounted on the outer arm 12 of the loading arm. One end of the spring cylinder 1 is hinged to the spring cylinder suspension arm 2, and the other end of the spring cylinder suspension arm 2 is hinged to the receiving tray rotating arm 5, allowing the spring cylinder 1 to extend and retract freely at multiple angles, thereby adapting to the complex movement state of the loading arm. When the loading arm returns to its original position, the spring cylinder 1 is compressed to drive the receiving tray II6 to rotate below the vertical pipe 11 and maintain a horizontal state for receiving liquid. When the loading arm is pressed down for loading, the spring cylinder 1 can be stretched and store elastic potential energy to drive the receiving tray II6 to automatically flip away from the vertical pipe 11, avoiding affecting the loading operation.

[0025] In order to transfer the liquid in the receiving tray II6 to the receiving tray I10, a residual liquid return port 9 is also provided in the receiving tray II6. The residual liquid return port 9 is connected to the receiving tray I10 through a return hose 7.

[0026] Preferably, the liquid receiving tray II6 is a double-layered liquid receiving tray. The outer layer structure is used to directly receive the residual liquid dripping from the dropper 11, avoiding contact between the liquid and the inner layer structure. The inner layer structure is used to communicate with the outer layer structure through an independent flow channel to prevent the liquid from splashing out when it is turned over. More preferably, a horizontally inclined guide plate 8 is provided inside the liquid receiving tray II6. The two sides and the higher end of the guide plate 8 are fixedly connected to the inner wall of the liquid receiving tray II6, and a flow guiding gap is left between the lower end of the guide plate 8 and the inner wall of the liquid receiving tray II6. The guide plate 8 is used to uniformly guide the residual liquid when receiving liquid, and to prevent the liquid from being thrown outward when the liquid receiving tray II6 is rotated and tilted. The residual liquid return port 9 is provided on the liquid receiving tray II6 below the guide plate 8 to ensure that all the liquid in the liquid receiving tray II6 can be discharged into the liquid receiving tray I10.

[0027] In actual use, the liquid receiving tray I10 is a fully enclosed structure to prevent the liquid receiving tray I10 from shaking and causing the internal liquid to be thrown out during the loading of the loading arm. A vent pipe is provided at the top of the liquid receiving tray I10 to balance the air pressure inside and outside the liquid receiving tray I10 and prevent the formation of negative pressure inside the tray when residual liquid drips in, which would cause poor liquid absorption. A drain pipe with a switch valve is also provided at the bottom of the liquid receiving tray I10 to facilitate the collection and discharge of the internal liquid to the outside as needed.

[0028] The liquid receiving tray I10 is funnel-shaped, which facilitates the collection and discharge of residual liquid. The liquid receiving tray II6 is cylindrical, which facilitates its cooperation with the vertical tube 11 for better collection of residual liquid.

[0029] The working principle of the mechanical linkage liquid receiving mechanism for loading arms provided in this application is as follows:

[0030] When liquid needs to be connected after loading the loading arm, such as Figure 2 As shown by the dashed line,

[0031] The operator stops the loading pump and slowly raises the outer arm 12 of the loading arm. The vertical pipe 11 is separated from the tanker inlet. During the raising of the outer arm 12, the spring cylinder 1 gradually retracts, pulling the liquid receiving tray II6 to rotate downward around the hinge 4 until the liquid receiving tray II6 rotates to directly below the vertical pipe 11 and is in a horizontal state. The residual liquid flowing out of the vertical pipe 11 drips into the liquid receiving tray II6 and flows along the guide plate 8 into the interior of the liquid receiving tray II6 for storage and collection.

[0032] When loading the loading arm again, if Figure 2 As shown by the solid line,

[0033] The operator starts the loading arm lowering procedure. The outer arm 12 slowly descends, and the vertical pipe 11 moves toward the tank truck inlet. During the lowering process of the outer arm 12, the spring cylinder suspension arm 2 moves down synchronously with the outer arm 12. The spring cylinder 1 is stretched and stores elastic potential energy. When the outer arm 12 is lowered to the set angle, the tension of the spring cylinder 1 reaches the threshold, driving the liquid receiving tray II6 to flip upward around the hinge 4 until the vertical pipe 11 is in a vertical state and the liquid receiving tray II6 is in a tilted state. The liquid in the liquid receiving tray II6 flows into the liquid receiving tray I10 along the return hose 77, and can then flow into the tank truck in a concentrated manner.

[0034] Meanwhile, when loading the loading arm, the receiving tray II6 flips upward, and the guide plate 8 acts as a weir to prevent the liquid in the receiving tray II6 from spilling.

[0035] By repeating this cycle, the loading and liquid receiving operations of the loading arm can be achieved.

Claims

1. A mechanical linkage liquid receiving mechanism for loading arms, characterized in that: The system includes a receiving tray I and a receiving tray II for collecting residual liquid in the vertical tube after the loading arm is returned to its original position. The receiving tray I is installed horizontally on the vertical tube of the loading arm, and the receiving tray II is rotatably installed on the vertical tube of the loading arm above the receiving tray I via a receiving tray rotating arm. A spring cylinder is installed on the outer arm of the loading arm via a spring cylinder suspension arm to cooperate with the rotation of the receiving tray II. One end of the spring cylinder is hinged to the spring cylinder suspension arm, and the other end of the spring cylinder is hinged to the receiving tray rotating arm. A residual liquid return port is also provided in the receiving tray II, and the residual liquid return port is connected to the receiving tray I via a return hose.

2. The mechanical linkage liquid receiving mechanism for loading arms according to claim 1, characterized in that: The liquid receiving tray II is a double-layer liquid receiving tray.

3. The mechanical linkage liquid receiving mechanism for loading arms according to claim 2, characterized in that: Inside the liquid receiving tray II, there is a horizontally inclined guide plate. The two sides and the higher end of the guide plate are fixedly connected to the inner wall of the liquid receiving tray II. A guide gap is left between the lower end of the guide plate and the inner wall of the liquid receiving tray II. The residual liquid return port is set on the liquid receiving tray II below the guide plate.

4. The mechanical linkage liquid receiving mechanism for loading arms according to claim 1, characterized in that: A liquid receiving tray suspension arm is installed on the vertical tube of the loading arm, and the liquid receiving tray rotating arm is rotatably connected to the liquid receiving tray suspension arm via a hinge.

5. The mechanical linkage liquid receiving mechanism for loading arms according to claim 4, characterized in that: The length of the rotating arm of the receiving tray is greater than the length between the hinge and the bottom of the vertical tube of the loading arm.

6. The mechanical linkage liquid receiving mechanism for loading arms according to claim 1, characterized in that: The liquid receiving tray I is a fully enclosed structure. A vent pipe is provided at the top of the liquid receiving tray I, and a drain pipe with a switch valve is provided at the bottom of the liquid receiving tray I.

7. The mechanical linkage liquid receiving mechanism for loading arms according to claim 1, characterized in that: The liquid receiving tray I is funnel-shaped, and the liquid receiving tray II is cylindrical.

Images