Negative pressure adjusting system for oil tank of air compressor

Abstract

The utility model relates to the technical field of air compressors, and discloses an air compressor oil tank negative pressure adjusting system which comprises an air exhaust frame, a filter part is in threaded connection with the interior of the air exhaust frame, a flow guide groove is formed in the upper surface of the filter part, and a water diversion pipe fixedly communicates with the bottom end of the flow guide groove; and the outer surface of the filtering piece is connected with a sliding scraping piece in a sliding manner. According to the negative pressure adjusting system for the oil tank of the air compressor, oil mist can be filtered by installing the filtering piece, lubricating oil contained in the oil mist can be attached to the filtering piece, the lubricating oil can be recycled by arranging a flow guide groove to be matched with a water guide pipe, and the outer surface of the filtering piece can be cleaned by installing a sliding scraping piece; and lubricating oil on the surface of the filtering piece can be scraped off, recycling is facilitated, the filtering piece can be kept in a high-performance state by installing the sliding scraping piece, and meanwhile the lubricating oil can be conveniently and rapidly recycled.

Description

Technical Field

[0001] The present application relates to the technical field of air compressors, and in particular to an air compressor oil tank negative pressure regulating system. Background Art

[0002] An air compressor is a device used to compress gas. Similar in structure to a water pump, most air compressors are reciprocating pistons with rotating blades or screws. Air is typically used as the compression medium due to its compressibility, clarity, ease of delivery (non-condensing), safety, and inexhaustible supply.

[0003] An existing patent (publication number: CN203453008U) discloses a compressor oil tank negative pressure regulating device to address the current problem of excessively low oil tank negative pressure, which causes lubricating oil to be carried away with the oil mist. The device comprises an exhaust pipe, an oil mist blower, and an exhaust pipe, all connected to the oil tank. The oil mist blower draws oil fumes from the oil tank through the exhaust pipe and then discharges them through the exhaust pipe. A return pipe with a regulating valve is connected between the exhaust pipe and the oil tank. This device allows some of the mist blower's exhaust gas and the lubricating oil carried away to return to the oil tank through the return pipe, thereby regulating the oil tank negative pressure and recovering the lubricating oil.

[0004] During use, the above-mentioned file can return the filtered lubricating oil to the oil tank through the reflux pipe, thereby achieving the purpose of lubricating oil recycling. However, the efficiency of the lubricating oil flowing down by gravity is low. At the same time, the large amount of lubricating oil adsorbed on the filter element will affect its filtering effect. Therefore, the overall practicality needs to be improved. Utility Model Content

[0005] In response to the deficiencies in the prior art, the present application provides an air compressor oil tank negative pressure regulation system, which has the advantages of facilitating lubricating oil recovery and improving the performance of filter elements, thereby solving the problems raised in the background technology.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a negative pressure regulating system for an air compressor oil tank, comprising an air extraction frame, the internal thread of the air extraction frame is connected to a filter element, the upper surface of the filter element is provided with a guide groove, the bottom end of the guide groove is fixedly connected to a water diversion pipe, the outer surface of the filter element is slidably connected to a sliding scraper, the inner wall of the air extraction frame is rotatably connected to a screw, the sliding scraper is threadedly connected to the screw, and the bottom end of the air extraction frame is threadedly connected to the air extraction pipe.

[0007] According to the above solution, the oil mist can be filtered by installing the filter element, so that the lubricating oil contained in the oil mist can adhere to the filter element.

[0008] Furthermore, a sealing ring is provided on the upper surface of the air pumping frame, and the upper surface of the sealing ring is in contact with the air pumping frame.

[0009] Through the above solution, installing the sealing ring can improve the sealing between the filter element and the air extraction frame, thereby ensuring that the oil mist can pass through the outer surface of the filter element.

[0010] Furthermore, a motor is installed on the inner top wall of the air extraction frame, and the output end of the motor is fixedly connected to the lead screw.

[0011] Through the above solution, the motor can drive the lead screw to rotate, so that the lead screw can drive the sliding scraper to clean the outer surface of the filter element, so that the filter element can maintain a high-performance filtering state.

[0012] Furthermore, a sliding rod is installed on the inner wall of the air extraction frame, and the sliding scraper is slidably connected to the sliding rod.

[0013] Through the above solution, the sliding rod is installed to limit the sliding scraper, so that the sliding scraper can slide stably vertically.

[0014] Furthermore, a conical member is fixedly connected to the bottom surface of the filter element, and the water diversion pipe is completely hung through the conical member and the air extraction frame.

[0015] Through the above solution, installing the tapered member can change the flow direction of the oil mist, so that the oil mist can adhere to the inner wall of the air extraction frame and enter the filter element to be filtered.

[0016] Furthermore, a plurality of circumferentially distributed clamping plates are fixedly connected to the bottom end of the filter element, and the plurality of clamping plates are in contact with the inner wall of the air extraction frame.

[0017] Through the above solution, the installation card can limit the filter element, so that the filter element can still maintain a stable state under the impact of airflow.

[0018] Furthermore, a fixing piece is adsorbed on the upper surface of the air extraction frame, an auxiliary fan is installed on the inner wall of the fixing piece, and the bottom end of the fixing piece is made of a strong magnetic material.

[0019] Through the above solution, installing the auxiliary fan can facilitate the discharge of oil mist in the air extraction frame through the filter element, thereby playing a role in guiding the airflow.

[0020] Furthermore, a main fan is installed on the outer surface of the exhaust pipe.

[0021] Through the above solution, installing the main fan can facilitate the extraction of gas from the compressor and the extraction of the air flow containing oil mist into the air extraction frame.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] The air compressor oil tank negative pressure regulating system can filter oil mist by installing a filter element, so that the lubricating oil contained in the oil mist can adhere to the filter element. The lubricating oil can be recycled by providing a guide groove and cooperating with a water diversion pipe. The outer surface of the filter element can be cleaned by installing a sliding scraper, and the lubricating oil on the surface of the filter element can be scraped off for easy recycling. The installation of the sliding scraper can not only keep the filter element in a high-performance state, but also facilitate the rapid recycling of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional view of the overall structure of this application;

[0025] Figure 2 For this application Figure 1 A magnified schematic diagram of the structure at A;

[0026] Figure 3 This is a schematic diagram of the filter structure of this application;

[0027] Figure 4 This is a schematic diagram of the overall structure of this application.

[0028] In the picture:

[0029] 1. Exhaust frame; 2. Filter element; 3. Guide groove; 4. Water diversion pipe; 5. Sliding scraper; 6. Screw; 7. Exhaust pipe; 8. Sealing ring; 9. Motor; 10. Sliding rod; 11. Conical part; 12. Clamping plate; 13. Fixing part; 14. Auxiliary fan; 15. Main fan. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See also Figure 1 、 Figure 2 and Figure 3The top of filter 2 is provided with guide groove 3, and the bottom end of guide groove 3 is fixedly connected with water diversion pipe 4. The outer surface of filter element 2 is slidably connected with sliding scraper 5, and the inner wall of filter frame 1 is rotatably connected with lead screw 6, and sliding scraper 5 is threadedly connected with lead screw 6. The bottom end of filter frame 1 is threadedly connected with extraction pipe 7. By installing filter element 2, oil mist can be filtered, so that the lubricating oil contained in the oil mist can adhere to filter element 2. By opening the guide groove 3 and the water diversion pipe 4, the lubricating oil can be recycled. By installing sliding scraper 5, the outer surface of filter element 2 can be cleaned, and the lubricating oil on the surface of filter element 2 can be scraped off for easy recycling. By installing sliding scraper 5, not only can the filter element 2 maintain high performance, but also can facilitate rapid recycling of lubricating oil.

[0032] See also Figure 1 、 Figure 2 and Figure 3 , a sealing ring 8 is provided on the upper surface of the air extraction frame 1, and the upper surface of the sealing ring 8 is in contact with the air extraction frame 1. Installing the sealing ring 8 can improve the sealing between the filter element 2 and the air extraction frame 1, thereby ensuring that the oil mist can pass through the outer surface of the filter element 2, and a motor 9 is installed on the inner top wall of the air extraction frame 1. The output end of the motor 9 is fixedly connected to the screw 6. The motor 9 can drive the screw 6 to rotate so that the screw 6 can drive the sliding scraper 5 to clean the outer surface of the filter element 2, so that the filter element 2 can maintain a high-performance filtering state. A sliding rod 10 is installed on the inner wall of the air extraction frame 1, and the sliding scraper 5 is slidably connected to the sliding rod 10. Installing the slide rod 10 can limit the sliding scraper 5, so that the sliding scraper 5 can slide stably vertically.

[0033] See also Figure 1 、 Figure 2 and Figure 4 The bottom surface of the filter element 2 is fixedly connected with a conical member 11, and the water guide pipe 4 is completely hung through the conical member 11 and the air extraction frame 1. The installation of the conical member 11 can change the flow direction of the oil mist, so that the oil mist can adhere to the inner wall of the air extraction frame 1 and enter the filter element 2 to be filtered. The bottom end of the filter element 2 is fixedly connected with a plurality of circumferentially distributed card plates 12. The plurality of card plates 12 are in contact with the inner wall of the air extraction frame 1. The installation of the card plates 12 can limit the filter element 2 so that the filter element 2 can still maintain the impact of the air flow. In a stable state, a fixing part 13 is fixedly connected to the upper surface of the air extraction frame 1, and an auxiliary fan 14 is installed on the inner wall of the fixing part 13. The bottom end of the fixing part 13 is set to a strong magnetic material. The installation of the auxiliary fan 14 can facilitate the oil mist in the air extraction frame 1 to be discharged through the filter 2, thereby playing a role in guiding the airflow. The outer surface of the exhaust pipe 7 is installed with a main fan 15. The installation of the main fan 15 can facilitate the extraction of gas in the compressor and the airflow containing oil mist can be drawn into the air extraction frame 1.

[0034] In this embodiment, a negative pressure regulating system for an air compressor oil tank is provided. By installing a filter element 2, the oil mist can be filtered so that the lubricating oil contained in the oil mist can adhere to the filter element 2. By providing a guide groove 3 and cooperating with a water diversion pipe 4, the lubricating oil can be recycled. By installing a sliding scraper 5, the outer surface of the filter element 2 can be cleaned and the lubricating oil on the surface of the filter element 2 can be scraped off for easy recycling. By installing the sliding scraper 5, not only can the filter element 2 maintain a high performance state, but the lubricating oil can also be quickly recycled.

[0035] The working principle of the above embodiment is as follows: first, the main fan 15 is started and the air flow containing oil mist in the compressor is extracted into the air extraction frame 1. By installing the conical member 11, the air flow can be closely attached to the inner wall of the air extraction frame 1 and enter the filter element 2 to be filtered by the filter element 2. Installing the auxiliary fan 14 can facilitate the oil mist in the air extraction frame 1 to be discharged through the filter element 2, thereby playing the role of guiding the air flow. After the air flow passes through the filter element 2, the lubricating oil contained in the air flow will adhere to the filter element 2. At this time, the motor 9 is started and drives the screw 6 to rotate, so that the screw 6 can drive the sliding scraper 5 to slide vertically on the filter element 2. Installing the slide rod 10 can limit the sliding scraper 5 so that the sliding scraper 5 can slide vertically stably. During the sliding of the sliding scraper 5 The lubricating oil on the surface of the filter element 2 can be scraped off, so that the lubricating oil can enter the guide groove 3, and be concentrated in the water pipe 4 for discharge and return to the oil tank, which is convenient for the recycling of the lubricating oil. By installing the sliding scraper 5, not only can the filter element 2 be filtered, so that the filter element 2 maintains a high performance state, but also the lubricating oil can be quickly recycled, thereby improving the overall practicality. The installation of the sealing ring 8 can improve the sealing between the filter element 2 and the air extraction frame 1, thereby ensuring that the oil mist can pass through the outer surface of the filter element 2. At the same time, by lifting the fixing part 13, the fixing part 13 can be disassembled. Removing the fixing part 13 can facilitate the removal of the filter element 2, and it is also relatively convenient to replace, which is convenient for the staff to maintain the filter element 2.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An air compressor oil tank negative pressure regulating system, comprising an air extraction frame (1), characterized in that: The internal thread of the air extraction frame (1) is connected to a filter element (2), the upper surface of the filter element (2) is provided with a guide groove (3), the bottom end of the guide groove (3) is fixedly connected to a water guide pipe (4), the outer surface of the filter element (2) is slidably connected to a sliding scraper (5), the inner wall of the air extraction frame (1) is rotatably connected to a lead screw (6), the sliding scraper (5) is threadedly connected to the lead screw (6), and the bottom end of the air extraction frame (1) is threadedly connected to an air extraction pipe (7).

2. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: A sealing ring (8) is provided on the upper surface of the air pumping frame (1), and the upper surface of the sealing ring (8) is in contact with the air pumping frame (1).

3. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: A motor (9) is installed on the inner top wall of the air extraction frame (1), and the output end of the motor (9) is fixedly connected to the lead screw (6).

4. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: A sliding rod (10) is installed on the inner wall of the air extraction frame (1), and the sliding scraper (5) is slidably connected to the sliding rod (10).

5. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: The bottom surface of the filter element (2) is fixedly connected to a conical element (11), and the water guide pipe (4) is completely hung through the conical element (11) and the air extraction frame (1).

6. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: A plurality of circumferentially distributed clamping plates (12) are fixedly connected to the bottom end of the filter element (2), and the plurality of clamping plates (12) are in contact with the inner wall of the air extraction frame (1).

7. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: A fixing part (13) is adsorbed on the upper surface of the air extraction frame (1), an auxiliary fan (14) is installed on the inner wall of the fixing part (13), and the bottom end of the fixing part (13) is made of a strong magnetic material.

8. The air compressor oil tank negative pressure regulating system according to claim 1, characterized in that: A main fan (15) is installed on the outer surface of the exhaust pipe (7).

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