Pressurizing structure of refueling oil can

Abstract

The utility model provides a refueling oil pot pressurizing structure, which relates to the field of mechanical lubricating equipment and comprises a pot body, a pot cover and an oil outlet, the pot cover is hermetically connected to the top of the pot body, an air port capable of being connected with an external air source is arranged on the pot cover, a piston is arranged in the pot body, and the oil outlet is communicated with the piston. The piston divides an inner cavity of the can body into an upper air cavity and a lower oil cavity, the air port is communicated with the air cavity, and the oil outlet is communicated with the oil cavity. According to the oil can, the air cavity and the oil cavity are separated through the air port, oil is pushed through air pressure, the problems of low speed and unstable flow caused by oil outlet of a traditional oil can depending on self weight are solved, oil outlet stability is guaranteed, the lubricating quality is improved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lubrication equipment, and in particular to a pressurization structure for an oil filling can. Background Technology

[0002] In the operation of a mechanical transmission system, the piston rod is the core component that enables linear reciprocating motion, and its working condition directly affects the operating accuracy and service life of the entire equipment. Among these components, the lubrication effect on the piston rod surface is particularly critical, as it determines the smoothness of the piston rod's movement, its wear resistance, and the overall operating efficiency of the equipment.

[0003] Currently, when lubricating piston rods, mainstream lubrication equipment on the market generally uses a traditional oil can structure for oil supply. The internal oil dispensing method of this type of oil can mainly relies on the oil's own gravity to allow it to fall freely. In other words, the oil overcomes flow resistance by its own weight and flows from the outlet pipe to the piston rod surface that needs lubrication, thus completing the subsequent lubrication process.

[0004] However, in actual operation, because the flow rate of the oil is entirely determined by its own weight and viscosity characteristics, problems such as slow oil output and unstable flow rate can easily occur. Specifically, when the oil level in the reservoir is low, the pressure generated by the oil's own weight is insufficient, resulting in a significant reduction in the oil output, or even flow interruption. Conversely, when the oil viscosity increases due to factors such as temperature changes, the flow resistance increases, also causing uneven oil flow. Furthermore, unstable oil supply can lead to fluctuations in the lubrication quality of the product, increasing the defect rate. This not only requires more manpower and resources for rework or scrap disposal but also wastes lubricating oil, thus significantly increasing production costs.

[0005] Therefore, a pressurization structure for refueling oil cans was proposed. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by using air inlet pressurization and piston separation of the air chamber and oil chamber. By utilizing air pressure to drive the oil, it solves the problems of slow speed and unstable flow caused by traditional oil cans relying on their own weight for oil dispensing, ensuring stable oil dispensing, improving lubrication quality, and reducing costs.

[0007] In order to solve the above-mentioned technical problems, the present invention improves the oil dispensing speed and stability of existing oil cans through the following technical solution.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A pressurizing structure for a fuel dispenser is disclosed. The structure includes a dispenser body, a lid, and an outlet. The lid is sealed to the top of the dispenser body and has an air port for connecting to an external air source. A piston is provided inside the dispenser body, which divides the inner cavity of the dispenser body into an upper air chamber and a lower oil chamber. The air port is connected to the air chamber, and the outlet is connected to the oil chamber.

[0010] Preferably, the kettle body is fixed to the device by a bracket.

[0011] Preferably, the lid is connected to the pot body in a sealed manner via threads.

[0012] Preferably, the inner wall of the pot is provided with an axial guide groove, and the side wall of the piston is provided with a protrusion that slides in cooperation with the guide groove.

[0013] Preferably, sealing rings are embedded at both the upper and lower ends of the piston sidewall, and the sealing rings are made of oil-resistant rubber.

[0014] Preferably, the piston side in contact with the oil is covered with an anti-corrosion coating.

[0015] Preferably, the side wall of the pot is embedded with a transparent observation window, and the surface of the observation window is marked with volume scale.

[0016] Preferably, the bottom of the oil chamber is a conical oil collecting structure, and the oil outlet is located at the apex of the conical oil collecting structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The oil can pressurizing structure provided in this application uses air inlet for pressurization and piston to separate the air chamber and oil chamber. It uses air pressure to push the oil, which solves the problems of slow speed and unstable flow caused by traditional oil cans relying on their own weight to dispense oil. This ensures stable oil dispensing, improves lubrication quality, and reduces costs.

[0019] The system features enhanced stability through bracket fixation; threaded seals to ensure air pressure; guide grooves and protrusions to guarantee smooth piston movement; sealing rings to prevent leakage; anti-corrosion coatings to protect the piston; an observation window for easy oil volume control; and a conical structure to reduce residue. All of these features work together to further ensure stable and efficient oil output. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a side view sectional structural diagram of the kettle body of this utility model;

[0024] Figure 4 This is a schematic diagram of the kettle body structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the piston structure of this utility model;

[0026] Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0027] Figure number explanation: 1. Pot body; 11. Pot lid; 12. Conical oil collection structure; 2. Oil outlet; 3. Air inlet; 4. Piston; 41. Sealing ring; 42. Anti-corrosion coating; 5. Air chamber; 6. Oil chamber; 7. Guide groove; 71. Protrusion; 8. Observation window; 81. Volume scale; 9. Support. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0030] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0031] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0032] Please see Figure 1-6 A pressurized structure for an oil can includes a can body 1, a can lid 11, and an oil outlet 2. The can lid 11 is sealed to the top of the can body 1. The can lid 11 is provided with an air port 3 that can be connected to an external air source. The can body 1 is provided with a piston 4 inside. The piston 4 divides the inner cavity of the can body 1 into an upper air chamber 5 and a lower oil chamber 6. The air port 3 is connected to the air chamber 5, and the oil outlet 2 is connected to the oil chamber 6.

[0033] The pressurization structure of the oil can in this application is mainly composed of components such as the can body 1, the can lid 11, the oil outlet 2, the air outlet 3, the piston 4, the air chamber 5, and the oil chamber 6. The following is a detailed description of the structure and working principle.

[0034] The vessel body 1 is integrally molded from high-strength aluminum alloy, possessing excellent pressure resistance and corrosion resistance. The vessel body 1 is fixed to the equipment via a bracket 9, which is made of stainless steel and is detachably connected to the vessel body 1 using bolts, facilitating installation and maintenance. A transparent observation window 8, made of oil-resistant tempered glass, is embedded in its side wall, with volume markings 81 on its surface, allowing real-time observation of the remaining oil level in the oil chamber 6 and precise control of the filling amount. An axial guide groove 7 is provided on the inner wall of the vessel body 1, extending along its length and reaching the top of the vessel body 1 to form an opening. The opening size matches the protrusion 71 on the side wall of the piston 4. The bottom of the oil chamber 6 features a conical oil collecting structure 12, with the oil outlet 2 located at the apex of this structure, minimizing oil residue and maximizing utilization.

[0035] The lid 11 is made of the same aluminum alloy as the body 1 and is sealed to the top of the body 1 via fine threads. A polytetrafluoroethylene (PTFE) sealing tape (not shown in the figure) is wrapped around the threaded connection to ensure the air chamber 5 is airtight. The lid 11 has an air port 3, which uses a standard quick-connect fitting structure for easy connection to an external air supply line.

[0036] Piston 4, made of wear-resistant engineering plastic, divides the inner cavity of the reservoir 1 into an upper air chamber 5 and a lower oil chamber 6. Its sidewall has a protrusion 71 that slides along a guide groove 7. During operation, the protrusion 71 slides along the guide groove 7, ensuring stable axial movement of piston 4. When refilling, the protrusion 71 can disengage from the upper opening of the guide groove 7, allowing piston 4 to be completely removed. Sealing rings 41 are embedded at both the upper and lower ends of the piston 4's sidewall. The sealing rings 41 are made of oil-resistant rubber (such as nitrile rubber) to enhance the sealing between the air chamber 5 and the oil chamber 6, preventing air and oil leakage. The side of piston 4 in contact with the oil is covered with an anti-corrosion coating 42, which can be made of epoxy resin, to prevent oil corrosion.

[0037] The oil outlet 2 is located at the bottom of the pot body 1 and is connected to the oil chamber 6. It is made of brass and can be connected to an oil-resistant hose (not shown in the figure). The other end of the hose can extend to the piston rod lubrication part.

[0038] Working principle

[0039] By filling the air chamber 5 with gas, the gas pressure pushes the piston 4 to apply pressure to the oil in the oil chamber 6, thereby achieving a stable output of oil. When lubrication of the piston rod is required, an external air source, such as a compressed air pump, is first connected to the air port 3 on the lid 11 through a pipeline. The air source valve is opened, and external gas enters the air chamber 5 through the air port 3. As the amount of gas in the air chamber 5 increases, the pressure in the air chamber 5 gradually increases. Under the action of gas pressure, the piston 4 slides downward along the guide groove 7 on the inner wall of the pot body 1. At this time, the piston 4 exerts pressure on the oil in the oil chamber 6.

[0040] Because the oil in the oil chamber 6 is subjected to the pressure of the piston 4, the oil overcomes the flow resistance caused by its own viscosity and flows continuously and stably from the oil outlet 2 through the connected hose to the surface of the piston rod that needs lubrication. Throughout the lubrication process, the pressure of the oil in the oil chamber 6 can be controlled by adjusting the pressure of the external air source, thereby regulating the oil outlet speed and flow rate.

[0041] As the oil in oil chamber 6 gradually decreases, the gas in gas chamber 5 continuously pushes piston 4 downwards, maintaining a certain pressure in oil chamber 6 and preventing a significant reduction in oil output or flow interruption due to reduced oil volume. Simultaneously, even if the oil viscosity increases due to factors such as temperature changes, the oil can still flow smoothly under pressure, ensuring stable oil output.

[0042] Furthermore, through the transparent observation window 8 on the side wall of the pot body 1 and the volume scale 81 on the surface, the operator can observe the remaining amount of oil in the oil chamber 6 in real time. The cooperation between the guide groove 7 and the protrusion 71 ensures stable guidance of the piston 4 during operation and allows for unobstructed access to the piston 4 when replenishing oil, improving operational convenience. When the oil is insufficient, the external air source is turned off, the pot cap 11 is unscrewed, and the piston 4 is pulled upwards to replenish oil into the oil chamber 6. After replenishment, the pot cap 11 is tightened again, and the air source is connected to continue the lubrication operation. The conical oil collecting structure 12 reduces oil residue and improves oil utilization.

[0043] In summary, this pressurization structure effectively solves the problems of slow oil output and unstable flow rate in traditional oil cans, improves lubrication quality, and reduces production costs.

[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A pressurized structure for an oil refill container, comprising a container body (1), a lid (11), and an oil outlet (2), characterized in that: The lid (11) is sealed to the top of the body (1). The lid (11) is provided with an air port (3) that can be connected to an external air source. The body (1) is provided with a piston (4). The piston (4) divides the inner cavity of the body (1) into an upper air chamber (5) and a lower oil chamber (6). The air port (3) is connected to the air chamber (5), and the oil outlet (2) is connected to the oil chamber (6).

2. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The pot body (1) is fixed to the device by a bracket (9).

3. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The lid (11) is sealed to the body (1) by threads.

4. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The inner wall of the pot body (1) is provided with an axial guide groove (7), and the side wall of the piston (4) is provided with a protrusion (71) that slides with the guide groove (7).

5. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The piston (4) has sealing rings (41) embedded at both the upper and lower ends of its sidewall. The sealing rings (41) are made of oil-resistant rubber.

6. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The piston (4) is covered with an anti-corrosion coating (42) on the side that contacts the oil.

7. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The side wall of the pot body (1) is fitted with a transparent observation window (8), and the surface of the observation window (8) is marked with volume scale (81).

8. The pressurization structure for a fuel dispenser according to claim 1, characterized in that: The bottom of the oil cavity (6) is a conical oil collecting structure (12), and the oil outlet (2) is located at the apex of the conical oil collecting structure (12).

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