Rotary-vane vacuum pump oil window and rotary-vane vacuum pump

Abstract

The utility model belongs to the technical field of vacuum pumps / oil windows, and particularly provides a rotary-vane vacuum pump oil window and a rotary-vane vacuum pump. The rotary-vane vacuum pump comprises an oil tank, and a strip-shaped hole is formed in the oil tank; the oil window comprises a shell connected with the strip-shaped hole; the oil window pad, the oil window glass and the mirror surface reflecting plate are sequentially arranged between the shell and the strip-shaped hole. The vacuum pump oil window aims to solve the problems that light on the observation side of an existing vacuum pump oil window is dark, and an operator cannot observe the internal condition of an oil tank conveniently, effectively improves the visual effect of the oil window, and is small in size, simple in structure, low in cost and easy to achieve.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum pumps / oil windows, and specifically provides a rotary vane vacuum pump oil window and a rotary vane vacuum pump. Background Art

[0002] Rotary vane vacuum pumps are a very versatile type of vacuum pump, utilizing vacuum pump oil for sealing, lubrication, and cooling. Due to various operating conditions, the pump may experience oil starvation, oil oxidation, and oil contamination. This can cause changes in the oil's condition, impacting pump performance and lifespan. Therefore, an oil window is typically installed on the rear side of the vacuum pump's oil tank, allowing the operator to directly observe the oil's condition.

[0003] Existing oil windows often require close proximity to carefully identify the oil level and condition, resulting in poor visual quality and inconvenience for operators. Alternatively, existing oil windows offer relatively good visual quality but are large, occupying a larger surface area of the fuel tank and interfering with the layout of other components. Therefore, a compact oil window with improved visual quality is urgently needed to address these issues. Utility Model Content

[0004] One purpose of the utility model is to provide a vacuum pump oil window which is small in size and can improve the visual effect.

[0005] To achieve the above-mentioned object, the present invention provides an oil window for a rotary vane vacuum pump, wherein the rotary vane vacuum pump includes an oil tank provided with a strip-shaped hole; the oil window includes:

[0006] a housing connected to the strip-shaped hole; and

[0007] An oil window pad, an oil window glass and a mirror reflector are sequentially arranged between the housing and the strip-shaped hole.

[0008] Furthermore, the mirror reflector is configured as a stainless steel mirror panel.

[0009] Furthermore, an observation port is provided on the shell.

[0010] Furthermore, the strip-shaped hole includes a first mounting portion and a second mounting portion, the first mounting portion is used to mount the oil window glass, and the second mounting portion is used to mount the mirror reflector.

[0011] Furthermore, the oil window also includes a sealing ring, and a sealing gap is provided between the first mounting portion and the second mounting portion. The sealing ring is installed in the sealing gap to prevent the pump oil in the oil tank from leaking from the strip hole.

[0012] Furthermore, the oil window further comprises a fastening rubber ring, which is arranged in the sealing gap and is used to press the mirror reflector; and

[0013] The diameter of the fastening rubber ring is smaller than the diameter of the sealing ring.

[0014] Furthermore, the oil window further includes a fastener, and the oil window and the strip-shaped hole are connected via the fastener.

[0015] Furthermore, the fastener is configured as a screw, the housing and the oil window gasket are provided with screw holes, the edge of the strip hole is provided with a threaded hole, and the screw passes through the threaded hole of the housing, the oil window gasket and the screw holes on the edge of the strip hole in sequence and is tightened therewith.

[0016] Furthermore, the number of the screws is at least four, and the at least four screws are evenly installed around the strip-shaped hole.

[0017] Furthermore, a rotary vane vacuum pump includes the rotary vane vacuum pump oil window described in any one of the above.

[0018] Furthermore, the oil tank includes an oil hole and an oil storage space, the oil hole is located in the strip-shaped hole, and the pump oil can enter the oil storage space through the oil hole.

[0019] Based on the foregoing description, those skilled in the art will appreciate that, in the aforementioned technical solution of the present invention, by adding a mirror reflector within the oil window, the mirror reflector is able to reflect light, thereby enabling clear observation of the oil level within the tank, the color of the pumped oil, and other conditions. This utility model effectively addresses the problem of poor visual effects of existing oil windows, which make it difficult for workers to observe the internal conditions of the tank. It is compact, simple in structure, low in cost, and relatively easy to implement.

[0020] Furthermore, due to the characteristic that stainless steel is not easily corroded, the present invention preferably uses a stainless steel mirror plate as the reflector material to increase the service life of the oil window, while also avoiding the problem of impurities contaminating the strip holes after being corroded by pump oil when using ordinary mirror materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same reference numerals in different drawings indicate the same or similar components or parts; the drawings of the present invention are not necessarily drawn to scale. In the drawings:

[0022] Figure 1 It is a schematic structural diagram of a vacuum pump in some embodiments of the present utility model;

[0023] Figure 2 yes Figure 1 Cross-sectional view of the vacuum pump.

[0024] Description of reference numerals:

[0025] 100. Vacuum pump; 1. Oil window; 11. Housing; 12. Oil window gasket; 13. Oil window glass; 14. Mirror reflector; 15. Sealing ring; 16. Fastening rubber ring; 17. Screw; 2. Oil tank; 21. Strip hole; 211. First mounting part; 212. Second mounting part; 22. Oil hole; 23. Oil storage space. DETAILED DESCRIPTION

[0026] Those skilled in the art should understand that the embodiments described below are only a portion of the embodiments of the present invention, rather than all of the embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0027] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, it should not be understood as limiting the present utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] Refer to the following Figure 1 and Figure 2 , to describe in detail the structure of the oil window and the rotary vane vacuum pump in some embodiments of the present invention. Figure 1 It is a schematic structural diagram of a vacuum pump in some embodiments of the present invention; Figure 2 yes Figure 1 Cross-sectional view of the vacuum pump.

[0030] It should be noted that, for the convenience of description and to enable those skilled in the art to quickly understand the technical solution of the present invention, the following text only describes the technical features that are closely related (directly or indirectly related) to the technical problem and / or technical concept to be solved by the present invention, and does not describe the technical features that are less closely related to the technical problem and / or technical concept to be solved by the present invention. Since such technical features with a lesser degree of relevance are common knowledge in the field, even if the present invention does not describe such features with a lesser degree of relevance, it will not result in insufficient disclosure of the present invention.

[0031] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, a rotary vane vacuum pump oil window 1 is provided. The rotary vane vacuum pump 100 includes an oil tank 2 with a strip-shaped hole 21. The oil window 1 includes a housing 11 connected to the strip-shaped hole 21, an oil window gasket 12, an oil window glass 13, and a mirror reflector 14, which are sequentially disposed between the housing 11 and the strip-shaped hole 21. The reflective surface first forms a mirror reflection on the light, thereby increasing the light intensity inside the oil window 1, effectively improving the visual experience for the operator.

[0032] Among them, the housing 11 is provided with an observation port, through which the operator can observe the state of the pump oil in the oil tank 2. The size and shape of the observation port can be adjusted according to actual needs, and will not be described in detail here.

[0033] The mirror reflector 14 is configured as a stainless steel mirror plate. Since stainless steel is not easily corroded by pump oil, the present invention preferably uses a stainless steel mirror plate as the reflector material to extend the service life of the oil window 1 and avoid the problem of impurities contaminating the strip holes 21 due to corrosion by pump oil when using ordinary mirror materials.

[0034] The strip-shaped hole 21 includes a first mounting portion 211 and a second mounting portion 212 . The first mounting portion 211 is used for mounting the oil window glass 13 , and the second mounting portion 212 is used for mounting the mirror reflector 14 .

[0035] The oil window 1 further includes a sealing ring 15 . A sealing gap is defined between the first mounting portion 211 and the second mounting portion 212 . The sealing ring 15 is installed in the sealing gap to prevent the pump oil in the oil tank 2 from leaking from the strip-shaped hole 21 .

[0036] The oil window 1 also includes a tightening rubber ring 16, which is arranged in the sealing gap and is used to press the mirror reflector 14. The pumped oil can enter the sealing gap through the gap between the mirror reflector 14 and the strip hole 21, so that the operator can observe the status of the pumped oil.

[0037] The diameter of the fastening rubber ring 16 is smaller than the diameter of the sealing ring 15 .

[0038] The sealing ring 15 and the fastening rubber ring 16 are both configured as O-type sealing rings. The sealing ring 15 and the fastening rubber ring 16 are both flexible members. Preferably, at least one of the sealing ring 15 and the fastening rubber ring 16 is made of rubber material.

[0039] The oil window 1 further includes a fastener, and the oil window 1 is connected to the strip-shaped hole 21 via the fastener.

[0040] The fastener is set as a screw 17, the housing 11 and the oil window gasket 12 are provided with screw holes, and the edge of the strip hole 21 is provided with a threaded hole. The screw 17 passes through the threaded hole of the housing 11, the oil window gasket 12 and the screw holes on the edge of the strip hole 21 in sequence and is tightened therewith.

[0041] The number of screws 17 is at least four, and at least four screws 17 are evenly installed around the strip hole 21. Preferably, in the present invention, the number of screws 17 is set to four, and the four screws are respectively installed at the four corners of the strip hole 21.

[0042] In other embodiments of the present invention, a rotary vane vacuum pump 100 is provided, comprising the rotary vane vacuum pump oil window 1 described above.

[0043] The oil tank 2 includes an oil hole 22 and an oil storage space 23 . The oil hole 22 is located in the strip hole 21 , and pump oil can enter the oil storage space 23 through the oil hole 22 .

[0044] Those skilled in the art will appreciate that the present invention incorporates a mirrored reflector 14 within the oil window 1, enabling the mirrored reflector 14 to reflect light, thereby enabling clear observation of the oil level in the fuel tank 2, the color of the pumped oil, and other conditions. The present invention effectively addresses the problem of the existing oil window 1 having poor visual quality and making it difficult for operators to observe the interior of the fuel tank 2. It also features a simple structure and is relatively easy to implement.

[0045] Furthermore, due to the characteristic that stainless steel is not easily corroded, the present invention preferably uses a stainless steel mirror plate as the reflector material to increase the service life of the oil window 1, while also avoiding the problem of using ordinary mirror materials to produce impurities that contaminate the strip holes 21 after being corroded by pump oil.

[0046] Thus far, the technical solutions of the present invention have been described in conjunction with the above-mentioned multiple embodiments. However, it is easy for those skilled in the art to understand that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art may split and combine the technical solutions of the above-mentioned various embodiments, and may also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A rotary vane vacuum pump oil window, characterized in that: The rotary vane vacuum pump includes an oil tank, which is provided with a strip-shaped hole; the oil window includes: a housing connected to the strip-shaped hole; and An oil window pad, an oil window glass and a mirror reflector are sequentially arranged between the housing and the strip-shaped hole.

2. The rotary vane vacuum pump oil window according to claim 1, characterized in that: The mirror reflector is configured as a stainless steel mirror panel.

3. The rotary vane vacuum pump oil window according to claim 1, characterized in that: An observation port is provided on the shell.

4. The rotary vane vacuum pump oil window according to claim 1, characterized in that: The strip-shaped hole includes a first mounting portion and a second mounting portion, the first mounting portion is used to mount the oil window glass, and the second mounting portion is used to mount the mirror reflector.

5. The rotary vane vacuum pump oil window according to claim 4, characterized in that: The oil window further includes a sealing ring. A sealing gap is defined between the first mounting portion and the second mounting portion. The sealing ring is installed in the sealing gap to prevent the pump oil in the oil tank from leaking from the strip-shaped hole.

6. The rotary vane vacuum pump oil window according to claim 5, characterized in that: The oil window further includes a fastening rubber ring, which is arranged in the sealing gap and is used to press the mirror reflector; and The diameter of the fastening rubber ring is smaller than the diameter of the sealing ring.

7. The rotary vane vacuum pump oil window according to claim 1, characterized in that: The oil window further includes a fastener, and the oil window and the strip-shaped hole are connected via the fastener.

8. The rotary vane vacuum pump oil window according to claim 7, characterized in that: The fastener is configured as a screw, the housing and the oil window gasket are provided with screw holes, the edge of the strip hole is provided with a threaded hole, and the screw passes through the threaded hole of the housing, the oil window gasket and the screw holes on the edge of the strip hole in sequence and is tightened therewith.

9. The rotary vane vacuum pump oil window according to claim 8, characterized in that: The number of the screws is at least four, and the at least four screws are evenly installed around the strip-shaped hole.

10. A rotary vane vacuum pump, characterized in that: The invention comprises the rotary vane vacuum pump oil window according to any one of claims 1 to 9.

11. The rotary vane vacuum pump according to claim 10, wherein: The oil tank comprises an oil hole and an oil storage space. The oil hole is located in the strip-shaped hole, and pump oil can enter the oil storage space through the oil hole.

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