High-efficiency lubricating oil purging and oiling device for small-sized pump

Abstract

The invention provides a small machine pump lubricating oil efficient purging oiling device which comprises a connecting pipe, the connecting pipe is a three-way piece, one end of the connecting pipe is fixedly connected with a hose, one end of the connecting pipe is connected with an air source, a connecting opening in the middle of the connecting pipe is in threaded connection with an oil can, and an upper end opening of the oil can is sealed. An oil feeding pipe is arranged at the sealing opening in a downward extending mode and extends downwards to the bottom of the oil can, and a filling opening is formed in one side of the upper end of the oil can. According to the oil injection device, lubricating oil is fed into the machine pump in an air pressure mode, meanwhile, lubricating oil in the hose is blown into the machine pump, leakage and waste are avoided, and the oil injection accuracy is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of lubricating oil filling, in particular to a small-sized machine pump lubricating oil high-efficiency purging and filling device. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering.

[0003] For some small equipment, the lubricant filling nozzle is small and located in a remote area. Traditionally, lubricant filling is done by inserting a hose into the nozzle, with the other end connected to the lower end of a funnel. Lubricant is poured into the funnel, and gravity forces the lubricant through the hose into the nozzle. However, due to the thinness of the hose, filling is relatively slow. Furthermore, the thinness of the hose and the tension of the lubricant can cause a large amount of lubricant to remain in the hose, resulting in waste and leakage during transportation and storage. Summary of the Invention

[0004] To address the aforementioned issues, the present invention discloses a highly efficient purging and refueling device for lubricating oil in a small pump. The device comprises a connecting pipe, which is a tee-shaped piece, with a flexible hose fixedly connected to one end of the connecting pipe, and an air source connected to the other end of the connecting pipe. The air source supplies gas, which passes through the connecting pipe and is discharged from the other end of the flexible hose.

[0005] The connecting port in the middle of the connecting pipe is threadedly connected to an oil pot. The upper end of the oil pot is sealed, and an oil delivery pipe is extended downward from the seal. The oil delivery pipe extends downward to the bottom of the oil pot. A filling port is provided on one side of the upper end of the oil pot. When the gas passes through the connecting pipe, negative pressure is generated at the upper end of the oil delivery pipe. At this time, the filling port is connected to the atmosphere, so the lubricating oil is sucked into the hose and sent to the machine pump by means of high-speed airflow. When it is necessary to stop feeding the lubricating oil, the filling port is blocked. Even if there is negative pressure at the upper end of the oil delivery pipe, the lubricating oil in the oil pot will not be sucked into the hose. In addition, when the gas supply is continuous, the gas will send the remaining lubricating oil in the hose into the machine pump as much as possible. In addition, the oil pot is made of transparent material, and a scale is provided on the side wall of the oil pot to obtain the amount of lubricating oil injected.

[0006] Preferably, the filling port is provided with a breather valve, comprising a lower fixing member threadedly connected to the filling port, an upper rotating member threadedly connected to the inner side of the upper portion of the lower fixing member, a tapered groove provided inside the lower fixing member, a frustum provided at the lower end of the upper rotating member, and the frustum fitted into the tapered groove, an air passage provided inside the upper rotating member, one end of the air passage exposed from the upper end of the upper rotating member and the other end exposed from the conical surface of the lower portion. When lubricating oil needs to be added to the oil pot, the breather valve can be removed by rotating the lower fixing member to remove the breather valve. When the oil pot needs to be connected to the atmosphere, the upper rotating member is rotated to separate the conical surface of the lower fixing member from the conical surface of the upper rotating member. At this time, the oil pot is connected to the atmosphere by means of the air passage and the gap between the conical surfaces.

[0007] Preferably, a filter is provided at the lower end of the oil delivery pipe to filter out solid impurities and prevent them from entering the pump.

[0008] Preferably, a gooseneck is provided on the hose, and both ends of the gooseneck are fixedly connected to metal pipes, wherein one end of the metal pipe is fixedly connected to the connecting pipe. The provision of the gooseneck facilitates adjustment and maintenance of the direction of the hose.

[0009] Preferably, the gas source comprises a gas tank, the output end of which is fixedly connected to a three-way valve, one end of which is fixedly connected to the end of a connecting pipe. The three-way valve has three positions, the first position being a blocking state, and the second position directing gas from the gas tank into the connecting pipe.

[0010] Preferably, one port of the three-way valve is fixedly connected to an air pipe, the upper end of the oil pot is provided with an air port, and the other end of the air pipe is fixedly connected to the air port. The third position of the three-way valve is used to introduce the large amount of gas in the gas tank into the oil pot through the air pipe. In this case, another method of using the device is to keep the filling port in a closed state. After the gas enters the oil pot, the internal air pressure presses the lubricating oil into the hose and sends it to the machine pump. After the lubricating oil is delivered, the second position of the three-way valve is activated to send the remaining lubricating oil in the hose into the machine pump to avoid residual lubricating oil in the hose.

[0011] Preferably, an air pump is provided at one end of the gas tank, and an output end of the air pump is connected to the gas tank. Gas can be injected into the gas tank through the air pump to meet the use requirements of the device.

[0012] The beneficial effects of the present invention are as follows: 1. Two oil filling methods are set. One is to send high-speed gas into the connecting pipe to generate negative pressure at the upper end of the oil delivery pipe, sucking oil into the connecting pipe and blowing it into the hose, that is, filling the pump with oil. The other is to send gas into the oil pot to press the lubricating oil into the hose, that is, filling the pump with oil. These two filling methods can achieve high-efficiency lubricating oil filling; 2. In addition, after the lubricating oil filling is completed, gas can be introduced into the hose to send the remaining lubricating oil in the hose into the machine pump, avoiding the occurrence of lubricating oil dripping and waste pollution and improving the accuracy of lubricating oil filling amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional schematic diagram of the oil pot of the present invention; Figure 3 It is a cross-sectional schematic diagram of the oil pot of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0014] List of reference numerals: 1. Hose; 2. Metal pipe; 3. Gooseneck; 4. Connecting pipe; 5. Oil can; 6. Air pipe; 7. Three-way valve; 8. Air tank; 9. Air pump; 10. Air port; 11. Filling port; 12. Breather valve; 13. Filter; 14. Oil delivery pipe 121. Lower fixed part; 122. Upper rotating part; 123. Airway. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0016] like Figures 1 to 4 As shown, a small-scale machine pump lubricating oil efficient purging and refueling device includes a connecting pipe 4, which is a tee piece, and one end of the connecting pipe 4 is fixedly connected to a hose 1. When the device is in use, the end of the hose 1 is inserted into the machine pump lubricating oil injection nozzle, and one end of the connecting pipe 4 is connected to an air source, which provides gas, and the gas passes through the connecting pipe 4 and is sent out from the other end of the hose 1.

[0017] The connecting port in the middle of the connecting pipe 4 is threadedly connected to the oil pot 5, and lubricating oil is stored in the oil pot 4. The upper end of the oil pot 5 is sealed, and an oil delivery pipe 14 is extended downward from the seal, and the oil delivery pipe 14 extends downward to the bottom of the oil pot 5. A filling port 11 is provided on one side of the upper end of the oil pot 5. When lubricating oil needs to be injected, the filling port 11 is in an open state, that is, the oil pot 5 is connected to the atmosphere. When high-speed gas passes through the connecting pipe 4, negative pressure is generated at the upper end of the oil delivery pipe 14, and then the lubricating oil is sucked from the oil pot 5 and delivered to the machine pump with the help of the hose 1.

[0018] The filling port 11 is provided with a breather valve 12, and the operation of the breather valve 12 is a component for connecting the oil pot 5 with the atmosphere. In addition, the breather valve 12 is removed to expose the filling port 11, and lubricating oil can be added to the oil pot 5. The breather valve 12 includes a lower fixing part 121, and the lower fixing part 121 is threadedly connected to the filling port 11. Removing the breather valve 12 separates the lower fixing part 121 and the filling port 11. The upper inner side of the lower fixing part 121 is threadedly connected to the upper rotating part 122, and a conical groove is provided inside the lower fixing part 121, and a frustum is provided at the lower end of the upper rotating part 122, and the frustum is fitted in the conical groove. An air duct 123 is provided inside the upper rotating part 122, and one end of the air duct 123 is exposed from the upper end of the upper rotating part 122, and the other end is exposed from the conical surface of the lower part. When it is necessary to connect the oil pot 5 to the atmosphere, the upper rotating member 122 is rotated to create a gap between the two conical surfaces, and communication is achieved via the air passage 123 .

[0019] The lower end of the oil delivery pipe 14 is sleeved with a filter 13. It is used to filter solid impurities that may be present in the lubricating oil, thereby preventing the pump from being damaged by impurities.

[0020] A gooseneck tube 3 is provided on the hose 1. The gooseneck tube 3 can be shaped so that it can be bent and then maintained in a bent state. Both ends of the gooseneck tube 3 are fixedly connected to metal tubes 2, and the end of one of the metal tubes 2 is fixedly connected to the connecting tube 4. The direction of the hose 1 can be adjusted through the complete gooseneck tube 3, making it convenient to insert the end of the hose into the oil filling pipe of the machine pump.

[0021] The gas source includes a gas tank 8, which is used to store gas to ensure that sufficient gas is continuously released. The output end of the gas tank 8 is fixedly connected to a three-way valve 7, and one end of the three-way valve 7 is fixedly connected to the end of the connecting pipe 4. The three-way valve 7 has three working positions. The first working position is in a closed state, that is, the gas tank 8 is in a closed state. The second working position is to pass the gas in the gas tank 8 into the connecting pipe 4.

[0022] One end of the three-way valve 7 is fixedly connected to the air pipe 6, and the upper end of the oil pot 5 is provided with an air port 10, and the other end of the air pipe 6 is fixedly connected to the air port 10. The third working position of the three-way valve 7 is to pass the gas in the gas tank 8 into the oil pot 5 through the air pipe 6.

[0023] The second oil filling method of this device is that the breathable valve 12 is in a closed state, and then the third position of the three-way valve 7 is operated, the gas enters the oil pot 5, and the lubricating oil therein is pressed into the connecting pipe 4, and enters the machine pump through the hose. After the filling is completed, the second position of the three-way valve 7 is operated to send the lubricating oil remaining in the hose 1 into the machine pump, ensuring that the lubricating oil will not be wasted in the hose 1.

[0024] One end of the gas tank 8 is provided with an air pump 9, and the output end of the air pump 9 is communicated with the gas tank 8. A sufficient amount of gas is pumped into the gas tank 8 through the air pump 9.

[0025] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiment, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A small pump lubricating oil efficient purging and refueling device, characterized in that: It comprises a connecting pipe (4), the connecting pipe (4) being a tee piece, one end of which is fixedly connected to a hose (1), and one end of which is connected to an air source; The connecting port in the middle of the connecting pipe (4) is threadedly connected to an oil pot (5), the upper end of the oil pot (5) is sealed, and an oil delivery pipe (14) is provided downwardly extending from the sealed end, the oil delivery pipe (14) extending downwardly to the bottom of the oil pot (5), and a filling port (11) is provided on one side of the upper end of the oil pot (5).

2. A small pump lubricating oil efficient purging and refueling device according to claim 1, characterized in that: The filling port (11) is provided with a breathable valve (12), the breathable valve (12) comprising a lower fixing member (121), and the lower fixing member (121) is threadedly connected to the filling port (11), the upper inner side of the lower fixing member (121) is threadedly connected to the upper rotating member (122), the interior of the lower fixing member (121) is provided with a conical groove, and the lower end of the upper rotating member (122) is provided with a frustum, and the frustum is fitted in the conical groove, the interior of the upper rotating member (122) is provided with an air passage (123), and one end of the air passage (123) is exposed from the upper end of the upper rotating member (122), and the other end is exposed from the conical surface of the lower portion.

3. A small pump lubricating oil efficient purging and refueling device according to claim 1, characterized in that: The lower end of the oil delivery pipe (14) is sleeved with a filter element (13).

4. A small pump lubricating oil efficient purging and refueling device according to claim 1, characterized in that: A gooseneck tube (3) is sleeved on the hose (1), and both ends of the gooseneck tube (3) are fixedly connected to metal tubes (2), wherein the end of one of the metal tubes (2) is fixedly connected to the connecting tube (4).

5. The high-efficiency purging and refueling device for lubricating oil of a small pump according to claim 1, characterized in that: The gas source comprises a gas tank (8), the output end of the gas tank (8) is fixedly connected to a three-way valve (7), and one end of the three-way valve (7) is fixedly connected to the end of the connecting pipe (4).

6. A small-sized pump lubricating oil efficient purging and refueling device according to claim 5, characterized in that: One port of the three-way valve (7) is fixedly connected to an air pipe (6), an air port (10) is provided at the upper end of the oil pot (5), and the other end of the air pipe (6) is fixedly connected to the air port (10).

7. A small pump lubricating oil efficient purging and refueling device according to claim 5, characterized in that: An air pump (9) is provided at one end of the gas tank (8), and an output end of the air pump (9) is connected to the gas tank (8).

Images