Vacuum pump with double filtration and oil leakage and splashing prevention functions

Abstract

The utility model provides a vacuum pump with double filtration and oil leakage and splashing prevention functions, and belongs to the technical field of pumps. The problems that an existing vacuum pump is poor in filtering effect, and oil liquid is prone to splashing outwards from an exhaust port are solved. The vacuum pump with the double filtering and oil leakage and splashing prevention functions comprises an oil tank composed of a tank body and a tank cover, a partition plate is arranged in the tank body, two filtering areas are formed in the tank body through the partition plate, filtering devices are installed in the two filtering areas, the tank body is provided with an exhaust port communicated with one filtering area, and the exhaust port is communicated with the other filtering area. And an exhaust cover structure for preventing oil from splashing and leaking is mounted on the exhaust port. The oil filter has the advantages of preventing oil leakage and improving the filtering effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pump technology field relates to a vacuum pump with double filtration and oil leakage and splash prevention function. BACKGROUND

[0002] At present, the oil tank of the vacuum pump on the market is provided with a filter device to separate oil gas, so that the discharged gas is cleaner.

[0003] However, the filter device in the oil tank will fail after a long time of use. If the filter device is not replaced in time, oil will leak out and even splash out of the exhaust port, resulting in the exhaust cover connected to the exhaust port being covered with oil, and even the oil will splash out of the existing exhaust cover, affecting the overall use of the vacuum pump. SUMMARY

[0004] The utility model discloses a vacuum pump with double filtration and oil leakage and splash prevention function is provided for solving the above problems in the prior art.

[0005] The utility model discloses a vacuum pump with double filtration and oil leakage and splash prevention function, which comprises an oil tank composed of a tank body and a tank cover, characterized in that the tank body is provided with a partition plate, which divides the tank body into two filter areas, and filter devices are installed in the two filter areas; the tank body is provided with an exhaust port communicating with one of the filter areas; and an exhaust cover structure for preventing oil leakage and splash is installed on the exhaust port.

[0006] In the vacuum pump with double filtration and oil leakage and splash prevention function, the exhaust cover structure comprises a connecting flange, an exhaust nozzle, an air outlet block and an air outlet, the air outlet is formed in the air outlet block, the exhaust nozzle is provided with an exhaust hole, the exhaust hole and the air outlet are in communication, the air outlet is perpendicular to the exhaust hole, and the exhaust nozzle extends into the tank body.

[0007] In the vacuum pump with double filtration and oil leakage and splash prevention function, a circular groove is formed in the air outlet block and separated from the air outlet, and an oil return port is formed in the circular groove and communicates with the exhaust hole.

[0008] In the vacuum pump with double filtration and oil leakage and splash prevention function, the inner wall of the air outlet is provided with a threaded structure, and a filter assembly is arranged in the air outlet.

[0009] In the vacuum pump with double filtration and oil leakage and splash prevention function, the filter devices in the two filter areas are respectively a first filter device and a second filter device.

[0010] In the vacuum pump with double filtering and oil leakage and splashing prevention functions, the first filtering device is a multi-layer filter screen or a steel ball, and the second filtering device is a filter cartridge.

[0011] Compared with the prior art, the vacuum pump with double filtering and oil leakage and splashing prevention functions has multiple structures for preventing oil leakage and splashing, and has the advantages of preventing oil leakage and improving filtering effect. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural diagram of the vacuum pump with double filtering and oil leakage and splashing prevention functions.

[0013] Figure 2 is a perspective view of the exhaust cover structure.

[0014] Figure 3 is a sectional view of the exhaust cover structure.

[0015] In the figure, 1 is a box body, 2 is a partition plate, 3 is a filtering area, 4 is an exhaust port, 5 is a connecting flange plate, 6 is an exhaust nozzle, 7 is an air outlet block, 8 is an air outlet, 9 is an exhaust hole, 10 is a circular ring groove, 11 is an oil return port, 12 is a first filtering device, and 13 is a second filtering device. DETAILED DESCRIPTION

[0016] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0017] As shown in Figure 1 , Figure 2 , Figure 3 , the vacuum pump with double filtering and oil leakage and splashing prevention functions comprises an oil tank composed of a box body 1 and a tank cover, characterized in that the box body 1 has a partition plate 2, the partition plate 2 divides the inside of the box body 1 into two filtering areas 3, filtering devices are installed in the two filtering areas 3, the box body 1 has an exhaust port 4 communicating with one of the filtering areas 3, and an exhaust cover structure for preventing oil leakage and splashing is installed on the exhaust port 4.

[0018] Further, the exhaust cover structure comprises a connecting flange plate 5, an exhaust nozzle 6, an air outlet block 7, and an air outlet 8, the air outlet 8 is arranged on the air outlet block 7, the exhaust nozzle 6 has an exhaust hole 9, the exhaust hole 9 and the air outlet 8 communicate with each other, the arrangement direction of the air outlet 8 is perpendicular to the arrangement direction of the exhaust hole 9, the exhaust nozzle 6 extends into the box body 1, the opening of the exhaust cover structure is perpendicular, so that the oil cannot be directly discharged, and compared with the straight-through exhaust cover, the exhaust cover has the advantage of preventing leakage and splashing.

[0019] Preferably, the air outlet block 7 is provided with a circular groove 10 spaced from the air outlet 8, and the circular groove 10 is provided with an oil return port 11 communicated with the exhaust hole 9.

[0020] Further, the inner wall of the air outlet 8 is provided with a threaded structure, and the air outlet 8 is provided with a filter assembly, the threaded structure of the inner wall of the air outlet 8 has the effect of preventing oil leakage and oil splashing compared with a smooth surface after connecting the pipe fitting, and the filter assembly can be installed, the filter assembly can be connected by threads or inserted, and the filtering effect is improved.

[0021] Further, the filter devices in the two filter areas 3 are respectively a first filter device 12 and a second filter device 13; the first filter device 12 is a multi-layer filter screen or a steel ball or other filter device, and the second filter device 13 is a filter cartridge, and high-efficiency oil-gas separation can be achieved through the multi-stage filter devices to prevent oil leakage; in order to prevent oil leakage caused by long-time use, the exhaust cover structure is adopted to prevent oil from splashing outward.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0023] Although the terms such as box 1, partition 2, filter area 3, exhaust port 4, connecting flange 5, exhaust nozzle 6, air outlet block 7, air outlet 8, exhaust hole 9, circular groove 10, oil return port 11, first filter device 12, and second filter device 13 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. A vacuum pump with double filtration and oil spillage prevention function, the vacuum pump comprising an oil tank composed of a tank body (1) and a tank cover, characterized in that, The box (1) has a partition (2) inside, through the partition (2) makes the box (1) inside form two filter areas (3), and two filter areas (3) are equipped with filter device, the box (1) has the exhaust port (4) that communicates with a filter area (3) on, the exhaust port (4) is equipped with the exhaust cover structure that prevents oil splashing and leaks.

2. The vacuum pump with double filtration and oil spill prevention function according to claim 1, characterized in that, The exhaust cover structure includes connecting flange (5), exhaust nozzle (6), air outlet block (7), air outlet (8), the air outlet (8) is opened in air outlet block (7), the exhaust nozzle (6) has exhaust hole (9) on, the exhaust hole (9) and air outlet (8) are interconnected, and the opening direction of the air outlet (8) and the opening direction of the exhaust hole (9) are perpendicular to each other, the exhaust nozzle (6) extends into the box (1).

3. The vacuum pump with double filtration and oil spill prevention function according to claim 2, characterized in that, The air outlet block (7) is provided with a circular groove (10) spaced from the air outlet (8), and the circular groove (10) is provided with an oil return port (11) communicated with the exhaust hole (9).

4. The vacuum pump with double filtration and oil spill prevention function according to claim 2, characterized in that, The inner wall of the air outlet (8) has a threaded structure, and the air outlet (8) is provided with a filter assembly.

5. The vacuum pump with double filtration and oil spill prevention function according to claim 2, characterized in that, The filter devices in the two filter areas (3) are respectively a first filter device (12) and a second filter device (13).

6. The vacuum pump with double filtration and oil spill prevention function according to claim 5, characterized in that, The first filter device (12) is a multi-layer filter screen or a steel ball, and the second filter device (13) is a filter cartridge.

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