Automatic quantifying assembly of loading arm

By introducing an automatic metering component into the loading arm, and utilizing the cooperation of the metering column and the sealing disc, the problem of inaccurate measurement during liquid transportation is solved, enabling precise quantitative delivery of liquids and improving safety, as well as the rigidity and sealing of the equipment.

CN223620148UActive Publication Date: 2025-12-02HENAN ZHONGKONG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520208830.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-02
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

Existing fully automatic intelligent loading arms cannot achieve accurate measurement during liquid transportation, leading to liquid spillage and posing a safety hazard.

Method used

An automatic metering assembly for loading arms was designed, including a metering column, a sealing disc, a limit bar, and a drive assembly. The assembly performs metering by cooperating with the sealing disc via a reciprocating screw, and detects the liquid volume using a contact sensor. The assembly combines a sealing ring and a scraper ring to ensure airtightness and prevent liquid leakage.

Benefits of technology

It enables precise quantitative delivery of liquids, improves the safety and reliability of the delivery process, prevents liquid spillage, and enhances the rigidity and sealing of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic quantifying assembly of a loading arm, which comprises a quantifying upright post, a first speed reducing motor fixed at the upper end of the quantifying upright post, liquid inlets formed at the upper end and the lower end of the quantifying upright post, a bracket rotationally connected to the quantifying upright post, a gear ring fixed on the outer wall of the quantifying upright post, and a second speed reducing motor fixed on the bracket, contact sensors are fixed to the upper end and the lower end of the interior of the quantitative stand column, the quantitative stand column is rotationally connected with a reciprocating lead screw, a plurality of limiting strips are fixed to the inner wall of the quantitative stand column along the circumference of the quantitative stand column, and a sealing disc is in transmission connection to the reciprocating lead screw; limiting grooves corresponding to the limiting strips in a one-to-one mode are formed in the upper end of the sealing disc, liquid is quantitatively measured through the quantitative stand column, the reciprocating lead screw is matched with the sealing disc to press out the liquid in the quantitative stand column, the effect of quantitatively conveying the liquid is achieved, and the number of times of movement of the sealing disc is detected through the contact sensor; and the amount of conveyed liquid can be calculated.
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Description

Technical Field

[0001] This utility model relates to the field of fluid loading and unloading technology, specifically to an automatic metering component for an loading arm. Background Technology

[0002] An loading arm is a telescopic pipe used in the petroleum and chemical industries for loading and unloading liquids such as oil, water, and gas. Currently, loading arms are specialized equipment in the petroleum and chemical industries for fluid loading and unloading processes; also known as fluid loading arms, they connect to rigid pipes and elbows using rotary joints to facilitate the transfer of liquid media between trains, tank cars, and storage and transportation pipelines on trestles.

[0003] Existing fully automated intelligent loading arm dispensing technology enables a fully automated, unmanned process from tanker truck entry to loading of acid-related products and tanker truck exit, improving the safety of the loading and delivery process. However, since it mainly relies on manual operation, it is impossible to judge the amount of liquid being transported during the transportation process, which may lead to liquid overflow from the tank and cause danger. Utility Model Content

[0004] To address the above problems, this utility model provides an automatic metering component for loading arms; thus solving the aforementioned issues.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic metering component for an loading arm, comprising a metering column, a first reduction motor fixed to the upper end of the metering column, liquid inlets at both the upper and lower ends of the metering column, a bracket rotatably connected to the metering column, a toothed ring fixed to the outer wall of the metering column, a second reduction motor fixed to the bracket, the second reduction motor being drivenly connected to the toothed ring, contact sensors fixed to the upper and lower ends inside the metering column, a reciprocating screw rotatably connected to the metering column, multiple limiting strips fixed along the circumference of the inner wall of the metering column, a sealing disc drivenly connected to the reciprocating screw, and a limiting groove corresponding to each limiting strip on the upper end of the sealing disc.

[0006] Preferably, the bracket has an inner wall of the loading arm fixed on it. One end of the inner wall of the loading arm is connected to the metering column, and the other end of the inner wall of the loading arm is rotatably connected to a bend. The other end of the bend is rotatably connected to the outer wall of the loading arm, and the other end of the outer wall of the loading arm is rotatably connected to a vertical pipe of the loading arm. A sealing platform is fixed on the vertical pipe of the loading arm. A return air hose is fixed on the inner wall and the outer wall of the loading arm. One end of the return air hose is connected to the sealing platform. A drive assembly that is pulsatorically connected to the inner wall of the loading arm is fixed at the end of the inner wall of the loading arm that is connected to the bend. Both the left and right ends of the outer wall of the loading arm are provided with drive assemblies that are pulsatorically connected to the drive assembly and the vertical pipe of the loading arm.

[0007] Preferably, the drive assembly includes a mounting plate, a self-locking servo motor is fixed on one side of the mounting plate, a reducer is fixed on the other side of the self-locking servo motor, the self-locking servo motor is driven by the reducer, and the reducer is driven by the bend pipe.

[0008] Preferably, a sealing ring is fixed to the outer wall of the sealing disc, and sealing rings that are fixedly connected to the sealing disc are provided on both the upper and lower sides of the sealing ring, and scraper rings that are fixedly connected to the sealing disc are provided on both the upper and lower sides of the sealing ring.

[0009] Preferably, the sealing platform is a frustum-shaped structure, wider at the top and narrower at the bottom; the inner wall of the loading arm, the loading arm's vertical pipe, and the bend are L-shaped; and the outer wall of the loading arm is U-shaped.

[0010] Preferably, both the upper and lower ends of the quantitative column are connected to the inner wall of the loading arm via pipes, and the surface of the quantitative column is provided with graduations.

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

[0012] 1. Liquid is quantitatively measured using a metering column, and the liquid is expelled from the metering column by a reciprocating screw and a sealing plate, achieving the effect of quantitative liquid delivery. The number of times the sealing plate moves is detected by a contact sensor, which helps to calculate the amount of liquid delivered. By setting a sealing ring, sealing ring and scraper ring on the outside of the sealing plate, the sealing plate is guaranteed to be airtight when the liquid is squeezed in the metering column, preventing the liquid from flowing from one side of the sealing plate to the other.

[0013] 2. By setting a limiting strip inside the metering column, the limiting strip restricts the rotation of the sealing disc, allowing the sealing disc to move up and down. At the same time, the limiting strip strengthens the overall rigidity of the metering column, preventing the metering column from bending. By setting a drive assembly, which is connected to the bending pipe and the loading arm vertical pipe respectively, it is convenient to extend the loading arm vertical pipe into the tank. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the quantitative column of this utility model;

[0016] Figure 3 This is a schematic diagram of the sealing disc of this utility model;

[0017] Figure 4 For the present utility model Figure 1 Enlarged view at point A;

[0018] Figure 5 For the present utility model Figure 1 Enlarged view at point B.

[0019] The diagram shows the following labels: 1. Metering column; 2. Bracket; 3. Inner wall of loading arm; 4. Outer wall of loading arm; 5. Loading arm vertical pipe; 6. Return air hose; 7. Drive assembly; 8. Bend; 11. Gear ring; 12. First geared motor; 13. Liquid inlet; 14. Contact sensor; 15. Limit bar; 16. Reciprocating screw; 17. Sealing disc; 21. Second geared motor; 51. Sealing platform; 71. Mounting plate; 72. Self-locking servo motor; 73. Reducer; 171. Sealing ring; 172. Sealing ring; 173. Scraper ring; 174. Limit groove. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] Please see Figure 1 , Figure 2 and Figure 3An automatic metering assembly for an loading arm includes a metering column 1. A first reduction motor 12 is fixed to the upper end of the metering column 1. Liquid inlets 13 are provided at both the upper and lower ends of the metering column 1. The first reduction motor 12 drives a sealing disc 17 to move up and down reciprocally. When the sealing disc 17 moves upward, it squeezes the liquid in the cavity above the sealing disc 17 into the inner wall 3 of the loading arm. Simultaneously, the lower end of the sealing disc 17 draws in external liquid into the metering column 1. A one-way valve is installed at port 13 to prevent liquid backflow. A bracket 2 is rotatably connected to the metering column 1. A toothed ring 11 is fixed to the outer wall of the metering column 1. A second reduction motor 21 is fixed to the bracket 2. The second reduction motor 21 is driven by the toothed ring 11. By installing the bracket 2 on the metering column 1, the bracket 2 supports the inner wall 3 of the loading arm. The inner wall 3 of the loading arm is subjected to a large gravity when transporting liquid, preventing complete collapse of the inner wall 3. At the same time, the second reduction motor 21 and the toothed ring 11... The device is designed to facilitate the adjustment of the bracket 2 and the angular delivery of liquid. Contact sensors 14 are fixed at both the upper and lower ends of the metering column 1. A reciprocating screw 16 is rotatably connected to the metering column 1. Multiple limiting strips 15 are fixed along the circumference of the inner wall of the metering column 1. A sealing disc 17 is connected to the reciprocating screw 16. The metering column 1 measures the liquid quantitatively, and the reciprocating screw 16, in conjunction with the sealing disc 17, forces the liquid out of the metering column 1, achieving quantitative liquid delivery. The contact sensors 14 detect the number of times the sealing disc 17 moves, which helps calculate the amount of liquid delivered. The upper end of the sealing disc 17 has limiting grooves 174 corresponding to the limiting strips 15. By setting the limiting strips 15 inside the metering column 1, the limiting strips 15 restrict the rotation of the sealing disc 17, allowing it to move up and down. Simultaneously, the limiting strips 15 enhance the overall rigidity of the metering column 1, preventing bending.

[0022] Please see Figure 1 , Figure 2 and Figure 3 A sealing ring 171 is fixed to the outer wall of the sealing disc 17. The sealing ring 171 has sealing rings 172 fixedly connected to the sealing disc 17 on both its upper and lower sides. The sealing rings 172 have scraper rings 173 fixedly connected to the sealing disc 17 on both its upper and lower sides. By setting the sealing rings 171, 172 and 173 on the outside of the sealing disc 17, the sealing disc 17 is guaranteed to be airtight when the liquid is squeezed in the metering column 1, preventing the liquid from flowing from one side of the sealing disc 17 to the other side. The upper and lower ends of the metering column 1 are connected to the inner wall 3 of the loading arm through pipes. A one-way valve is installed at the connection between the pipe and the metering column 1. The surface of the metering column 1 is marked with a scale, through which the operator can directly observe the amount of liquid inside the metering column 1.

[0023] Please see Figure 1 , Figure 4 and Figure 5 The sealing platform 51 is a frustum-shaped structure, wider at the top and narrower at the bottom. The inner wall 3 of the loading arm, the vertical pipe 5 of the loading arm, and the bend 8 are L-shaped, while the outer wall 4 of the loading arm is U-shaped. The inner wall 3 of the loading arm is fixed on the bracket 2. One long end of the inner wall 3 of the loading arm is connected to the metering column 1, and the other end of the inner wall 3 is rotatably connected to the bend 8. The short end of the inner wall 3 of the loading arm has a driving assembly 7, which is connected to the bend 8. The other end of the bend 8 is rotatably connected to the outer wall 4 of the loading arm, and the other end of the outer wall 4 is rotatably connected to the vertical pipe 5 of the loading arm. The sealing platform 51 is fixed on the vertical pipe 5. The inner wall 3 and the outer wall of the loading arm... A return air hose 6 is fixed on the 4, one end of which is connected to the sealing platform 51. A drive assembly 7 is fixed at the end of the loading arm inner wall 3 that is connected to the bend 8 and is driven by the loading arm inner wall 3. By controlling different drive assemblies 7 to work, it is easy to adjust the angle of the loading arm outer wall 4 and the loading arm vertical pipe 5, so that the loading arm vertical pipe 5 can be inserted into the tank at different positions, thereby completing the liquid transportation. Both the left and right ends of the loading arm outer wall 4 are provided with drive assemblies 7 that are driven by the drive assembly 7 and the loading arm vertical pipe 5. By setting the drive assembly 7, which is driven by the bend 8 and the loading arm vertical pipe 5 respectively, it is convenient to extend the loading arm vertical pipe 5 into the tank.

[0024] Please see Figure 1 , Figure 4 and Figure 5 The drive assembly 7 includes a mounting plate 71. A self-locking servo motor 72 is fixed on one side of the mounting plate 71, and a reducer 73 is fixed on the other side of the self-locking servo motor 72. The self-locking servo motor 72 is connected to the reducer 73 in a transmission connection. The reducer 73 is connected to the bend 8 in a transmission connection. The operation of the mounting plate 71 drives the reducer 73 to work. The operation of the reducer 73 drives the corresponding bend 8 or the vertical tube 5 of the loading arm to work, thereby completing the adjustment of the angle of the outer wall 4 of the loading arm and the vertical tube 5 of the loading arm.

[0025] When using this utility model:

[0026] First, the second reduction motor 21 cooperates with the gear ring 11, adjusts the bracket 2, and the mounting plate 71 drives the reducer 73 to work. The reducer 73 drives the corresponding bend 8 or loading arm vertical tube 5 to work, thereby completing the adjustment of the angle of the loading arm outer wall 4 and the loading arm vertical tube 5. By controlling the different mounting plates 71 to work, it is easy to adjust the angle of the loading arm outer wall 4 and the loading arm vertical tube 5, so that the loading arm vertical tube 5 can be inserted into the tank at different positions. The sealing platform 51 seals the tank opening.

[0027] Then, the first reduction motor 12 drives the reciprocating screw 16 to rotate. The reciprocating screw 16 cooperates with the sealing plate 17 to push out the liquid in the metering column 1. When the sealing plate 17 moves upward, the sealing plate 17 squeezes the liquid in the cavity above the sealing plate 17 into the inner wall 3 of the loading arm. At the same time, the lower end of the sealing plate 17 draws in the external liquid into the interior of the metering column 1. A one-way valve is provided at the liquid inlet 13 to prevent liquid backflow.

[0028] Finally, the liquid is transported into the tank through the inner wall 3, outer wall 4, and vertical pipe 5 of the loading arm, and the gas in the tank is discharged through the return gas hose 6.

[0029] 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. An automatic metering assembly for a loading arm, characterized in that: The device includes a quantitative column (1), a first geared motor (12) fixed at the upper end of the quantitative column (1), liquid inlets (13) at both the upper and lower ends of the quantitative column (1), a bracket (2) rotatably connected to the quantitative column (1), a toothed ring (11) fixed on the outer wall of the quantitative column (1), a second geared motor (21) fixed on the bracket (2), the second geared motor (21) being drivenly connected to the toothed ring (11), a contact sensor (14) fixed at both the upper and lower ends inside the quantitative column (1), a reciprocating screw (16) rotatably connected to the quantitative column (1), a plurality of limiting strips (15) fixed along the circumference of the inner wall of the quantitative column (1), a sealing disc (17) being drivenly connected to the reciprocating screw (16), and a limiting groove (174) corresponding to the limiting strips (15) being opened at the upper end of the sealing disc (17).

2. The automatic metering assembly for an loading arm according to claim 1, characterized in that: The bracket (2) is fixed with the inner wall (3) of the loading arm. One end of the inner wall (3) of the loading arm is connected to the metering column (1). The other end of the inner wall (3) of the loading arm is rotatably connected to the bend (8). The other end of the bend (8) is rotatably connected to the outer wall (4) of the loading arm. The other end of the outer wall (4) of the loading arm is rotatably connected to the vertical pipe (5) of the loading arm. A sealing platform (51) is fixed on the vertical pipe (5). A return air hose (6) is fixed on the inner wall (3) and the outer wall (4) of the loading arm. One end of the return air hose (6) is connected to the sealing platform (51). A drive assembly (7) that is connected to the inner wall (3) of the loading arm is fixed at the end where the inner wall (3) of the loading arm is connected to the bend (8). Both the left and right ends of the outer wall (4) of the loading arm are provided with drive assemblies (7) that are connected to the drive assembly (7) and the vertical pipe (5) of the loading arm.

3. The automatic metering assembly for an loading arm according to claim 2, characterized in that: The drive assembly (7) includes a mounting plate (71), a self-locking servo motor (72) is fixed on one side of the mounting plate (71), a reducer (73) is fixed on the other side of the self-locking servo motor (72), the self-locking servo motor (72) is connected to the reducer (73) in a transmission connection, and the reducer (73) is connected to the bend (8) in a transmission connection.

4. The automatic metering assembly for an loading arm according to claim 1, characterized in that: A sealing ring (171) is fixed to the outer wall of the sealing disc (17). The sealing ring (171) is provided with sealing rings (172) fixedly connected to the sealing disc (17) on both the upper and lower sides. The sealing rings (172) are provided with scraper rings (173) fixedly connected to the sealing disc (17) on both the upper and lower sides.

5. An automatic metering assembly for an loading arm according to claim 2, characterized in that: The sealing platform (51) is a frustum shape with a larger top and a smaller bottom. The inner wall (3), vertical pipe (5) and bend (8) of the loading arm are L-shaped, and the outer wall (4) of the loading arm is U-shaped.

6. The automatic metering assembly for an loading arm according to claim 1, characterized in that: The upper and lower ends of the quantitative column (1) are connected to the inner wall (3) of the loading arm through pipes, and the surface of the quantitative column (1) is marked with scale.