Oil immersion lens of roots pump

Abstract

A transparent glass plate is embedded in the inner side of an observation opening, a light through hole is horizontally formed in the lower end of an oil lens body, a light condensation module is arranged at one end of the light through hole, the upper portion of a box body is open, a glass cover plate covers the box body, the other faces of the box body are sealed, and a light inlet hole corresponding to the light through hole is formed in the outer side of the box body. Arc-shaped reflectors are correspondingly arranged on the inner wall of the box body, and the reflection centers of the arc-shaped reflectors are located on the glass cover plate. When an operator changes oil for the Roots pump, an external light source is placed outside the light through hole, light sequentially penetrates through the light through hole and the light inlet hole, under the action of the arc-shaped reflecting plate, the light is irradiated on the glass cover plate and illuminates oil liquid on the upper portion of the box body, after the oil liquid is illuminated, when the operator observes the liquid level in the oil immersion lens, obvious light strips appear on the liquid level, and the height of the oil liquid is obviously displayed. The situation that an operator delays the opportunity of closing the oil injection valve to cause excessive adding of lubricating oil or closes the oil injection valve in advance to cause insufficient adding of lubricating oil is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots pumps, and particularly relates to a Roots pump oil level gauge. Background Art

[0002] As a power transmission and vacuum extraction device widely used in fields such as petroleum, chemical industry, medical treatment, and automation, the core of a Roots pump lies in its unique rotor structure and efficient fluid handling ability. And the oil level gauge, as an important part of the oil lubrication system of the Roots pump, undertakes the key tasks of monitoring the lubricating oil quantity and ensuring the stable operation of the equipment.

[0003] As the visual monitoring window of the oil lubrication system of the Roots pump, the main function of the oil level gauge is to observe the oil level of the lubricating oil in the oil tank through a lens made of a transparent material (such as glass or transparent plastic). This design allows operators to quickly judge whether the stock of lubricating oil is sufficient without opening the oil tank cover, thereby avoiding equipment wear, failures, and even damage caused by insufficient lubricating oil.

[0004] When observing the height of the oil fluid in the common Roots pump oil level gauges on the market, due to the relatively light color of the oil fluid itself, the display at the observation port of the oil level gauge is not obvious. When the operator changes the oil of the Roots pump, they need to look at the oil level gauge sideways. At this time, the reading of the oil fluid at the observation port is not obvious and requires careful observation. The operator may thus delay the timing of closing the oil injection valve, resulting in overfilling of the lubricating oil, or closing the oil injection valve prematurely, resulting in underfilling of the lubricating oil. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to research a Roots pump oil level gauge with obvious oil fluid indication.

[0006] The technical solution of the utility model to solve the above technical problem is as follows:

[0007] A Roots pump oil level gauge includes an oil level gauge body and a light condensing module. A observation port is arranged in the middle of the oil level gauge body, and a transparent glass plate is embedded inside the observation port. A light passing hole is horizontally opened at the lower end of the oil level gauge body. A light condensing module is arranged at one end of the light passing hole located inside the oil tank. The light condensing module includes a box body, an arc-shaped reflector, and a glass cover plate. The upper part of the box body is open and covered with the glass cover plate, and the rest of the surfaces are sealed. A light incident hole is opened on the outer side of the box body corresponding to the light passing hole, and an arc-shaped reflector is correspondingly arranged on the inner wall of the box body. The reflection center of the arc-shaped reflector is located on the glass cover plate.

[0008] The beneficial effects of the present utility model are as follows: When an operator changes the oil of the Roots pump, an external light source is placed outside the light passing hole. The light passes through the light passing hole and the light incident hole in sequence, and under the action of the arc-shaped reflector, it hits the glass cover plate, illuminating the oil liquid in the upper part of the box body. After the oil liquid is illuminated, when the operator observes the liquid level in the oil sight glass, obvious light strips will appear on the liquid surface, and the indication of the oil liquid height is obvious, avoiding the situation that the operator delays closing the oil injection valve, resulting in excessive addition of lubricating oil, or closing the oil injection valve in advance, resulting in insufficient addition of lubricating oil; This oil sight glass is convenient to use and has a simple structure, which is worthy of wide promotion.

[0009] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0010] Further, a connecting cover is arranged outside the light passing hole, and a thread is arranged inside the connecting cover.

[0011] Further, the surface of the arc-shaped reflector is sprayed with a reflective topcoat.

[0012] Further, a scale bar is correspondingly arranged on the transparent glass plate inside the observation port.

[0013] Further, it further includes an auxiliary sign board, and the auxiliary sign board is vertically and fixedly connected to the inner side of the oil sight glass body at intervals from the box body.

[0014] Further, the materials of the transparent glass plate and the glass cover plate are both high-transparency glass plates. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of an oil sight glass of a Roots pump of the present utility model;

[0016] Figure 2 is a partial structural sectional view of an oil sight glass of a Roots pump of the present utility model;

[0017] Figure 3 is Figure 2 the enlarged view of part A of

[0018] Figure 4 is a schematic structural diagram of the box body of an oil sight glass of a Roots pump of the present utility model;

[0019] Figure 5 is a front view of an oil sight glass of a Roots pump of the present utility model;

[0020] Figure 6 is a schematic diagram of a partial structure of a prior art Roots pump.

[0021] In the drawings, the list of components represented by each reference numeral is as follows:

[0022] 1. Oil lens body; 11. Light passing hole; 12. Observation port; 13. Auxiliary display board; 2. Condensing module; 21. Box body; 211. Light inlet hole; 22. Arc-shaped reflector; 23. Glass cover plate; 3. Connecting cover; 4. Scale bar. Detailed implementation mode

[0023] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0024] As Figures 1 to 5 shown, Embodiment 1 of a Roots pump oil lens of the present utility model includes an oil lens body 1 and a condensing module 2. An observation port 12 is provided in the middle of the oil lens body 1, and a transparent glass plate is embedded inside the observation port 12. A light passing hole 11 is horizontally opened at the lower end of the oil lens body 1. A condensing module 2 is provided at one end of the light passing hole 11 located inside the fuel tank. The condensing module 2 includes a box body 21, an arc-shaped reflector 22, and a glass cover plate 23. The upper part of the box body 21 is open and covered with a glass cover plate 23, and the rest of the surfaces are sealed. A light inlet hole 211 is opened on the outer side of the box body 21 corresponding to the light passing hole 11, and an arc-shaped reflector 22 is correspondingly provided on the inner wall of the box body 21. The reflection center of the arc-shaped reflector 22 is located on the glass cover plate 23.

[0025] When an operator changes the oil of the Roots pump, an external light source is placed outside the light passing hole 11. The light passes through the light passing hole 11 and the light inlet hole 211 in sequence, and under the action of the arc-shaped reflector 22, it hits the glass cover plate 23, illuminating the oil liquid in the upper part of the box body 21. After the oil liquid is illuminated, when the operator observes the liquid level in the oil lens, obvious light strips will appear on the liquid surface, and the indication of the oil liquid height is obvious, avoiding the situation that the operator delays closing the oil injection valve, resulting in overfilling of the lubricating oil, or closing the oil injection valve in advance, resulting in underfilling of the lubricating oil. This oil lens is convenient to use and has a simple structure, worthy of wide promotion. Specifically in implementation, the external light source can be blue light, purple light, red light, etc.

[0026] Embodiment 2 of a Roots pump oil lens of the present utility model, on the basis of Embodiment 1, a connecting cover 3 is provided outside the light passing hole 11, and threads are provided inside the connecting cover 3. The external light source can be threadedly connected to the connecting cover 3 to fix the external light source. Specifically in implementation, the external light source can be a flashlight or a laser pointer, and it is threadedly connected to the connecting cover when fixing.

[0027] Embodiment 3 of a Roots pump oil lens of the present utility model, on the basis of Embodiment 1 or 2, a reflective topcoat is sprayed on the surface of the arc-shaped reflector 22. The reflective topcoat can reduce the loss during light reflection, making the brightness higher and the indication more obvious when illuminating the oil liquid.

[0028] Embodiment 4 of the utility model: A sight glass for a Roots pump. On the basis of Embodiment 1, a scale bar 4 is correspondingly arranged on the transparent glass plate inside the observation port 12. This enables the operator to clearly know the height of the oil without estimation, facilitating the subsequent oil change operation. In specific implementation, the scale bar 4 is red, with strong warning properties.

[0029] Embodiment 5 of the utility model: A sight glass for a Roots pump. On the basis of Embodiment 1, it further includes an auxiliary sign board 13. The auxiliary sign board 13 is vertically and fixedly connected to the inner side of the sight glass body 1 at intervals of the box body 21. The auxiliary sign board 13 separates the inside of the Roots pump from the sight glass body 1, and the light source only needs to illuminate part of the lubricating oil, making the light strip on the liquid surface more obvious.

[0030] Embodiment 6 of the utility model: A sight glass for a Roots pump. On the basis of any one of Embodiments 1 to 5, the materials of the transparent glass plate and the glass cover plate 23 are both high-transmittance glass plates. The high-transmittance glass plate has a high light transmittance and is suitable for use in the sight glass. Low-iron glass is used in specific implementation.

[0031] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A Roots pump oil mirror, characterized in that: The oil mirror body (1) comprises an oil mirror body and a focusing module (2). The oil mirror body (1) is provided with an observation port (12) in the middle, and a transparent glass plate is embedded inside the observation port (12). The lower end of the oil mirror body (1) is provided with a light-through hole (11) horizontally. The light-through hole (11) is located at one end of the inner side of the oil tank and the focusing module (2) is provided. The focusing module (2) comprises a box body (21), an arc-shaped reflective plate (22) and a glass cover plate (23). The upper part of the box body (21) is open and covered with a glass cover plate (23), and the remaining surfaces are sealed. The outer side of the box body (21) is provided with a light inlet hole (211) corresponding to the light-through hole (11). The inner wall of the box body (21) is provided with the arc-shaped reflective plate (22) correspondingly, and the reflection center of the arc-shaped reflective plate (22) is located on the glass cover plate (23).

2. A Roots pump oil mirror according to claim 1, characterized in that: A connection cover (3) is arranged outside the light-through hole (11), and a thread is arranged inside the connection cover (3).

3. A Roots pump oil mirror according to claim 1, characterized in that: The surface of the arc-shaped reflective plate (22) is sprayed with reflective paint.

4. A Roots pump oil mirror according to claim 1, characterized in that: A scale bar (4) is correspondingly arranged on the transparent glass plate inside the observation port (12).

5. A Roots pump oil mirror according to claim 1, characterized in that: It also comprises an auxiliary viewing panel (13), and the auxiliary viewing panel (13) is vertically fixedly connected to the inner side of the oil mirror body (1) and spaced apart from the box body (21).

6. A Roots pump oil immersion mirror according to any one of claims 1 to 5, characterized in that: The transparent glass plate and the glass cover plate (23) are both made of high light-transmittance glass plates.

Images