Oil level inspection window

Abstract

The utility model discloses an oil level inspection window which comprises a shell connected with equipment in a sealed mode, a transparent window body is arranged on the shell, an inspection plate used for isolating bubbles and foreign matter is arranged in the shell, and due to the fact that the transparent window body capable of observing the oil level is arranged at the position of the equipment where the oil amount needs to be observed, the transparent window body can be used for observing the oil level. The oil liquid condition can be observed in real time, the observation window glass is prevented from being damaged by stress during installation due to the fact that the observation window body is formed in a pressing mode and the connection mode is changed into the threaded connection mode, in addition, the observation plate is further arranged in the window body, bubbles and foreign matter can be isolated, the influence on the window body is avoided, and the service life of the observation window is prolonged. The device is simple in structure, good in finished product consistency and reliable in sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment monitoring, in particular to an oil level inspection window. Background Art

[0002] Medium and high voltage transformers are devices used in power systems to measure current, voltage, and electric energy, as well as to supply power to relay protection signal devices. Currently, most voltage transformers (PT) and current transformers (CT) used in substations are oil-filled devices. The oil level indicator itself is an indispensable monitoring and protection device for the operation of the transformer. The accuracy and reliability of its monitoring data are important guarantees for the safe operation of the transformer.

[0003] The prior art generally adopts an oil level inspection window to monitor the oil level index on the transformer housing. This inspection window is generally designed as a bolt-tightening structure, and its observation glass is mostly made of organic glass. Due to structural reasons, this inspection window is often broken due to uneven tightening torque during installation, and organic glass is prone to aging and yellowing under long-term sunlight, making the oil level indication unclear, which is easy to cause maintenance personnel to misjudge and pose certain operating risks to the safe operation of the equipment. In addition, due to the presence of bubbles and foreign matter in the oil, the observation line of sight will be affected when observing the oil level, and foreign matter will also scratch and block the window, affecting the observation effect. Utility Model Content

[0004] In view of the above defects or shortcomings, the purpose of the utility model is to provide an oil level inspection window.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] An oil level inspection window comprises: a shell body sealed and connected with equipment, a transparent window body is arranged on the shell body, and an observation plate for isolating bubbles and foreign matters is arranged inside the shell body.

[0007] A mounting hole is provided on the shell of the device, an internal thread is provided in the mounting hole, an external thread is provided on the shell, and the shell is installed in the mounting hole.

[0008] A first sealing ring is installed in the installation hole.

[0009] The outer edge of the shell is arranged as a fastenable outer hexagonal structure.

[0010] A second sealing ring is installed between the shell and the transparent window.

[0011] The transparent window is made of transparent acrylic or transparent glass.

[0012] A through hole for observing the passage of liquid is arranged at the center of the observation plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides an oil level inspection window. Since a transparent window for observing the oil level is provided at a device where the oil amount needs to be observed, the oil situation can be observed in real time. Moreover, since the inspection window body is pressed and formed, the connection method is changed to threaded connection to avoid the observation window glass being damaged by force during installation. In addition, since an observation plate is also provided in the window, bubbles and foreign matter can be isolated to avoid affecting the window. The utility model has a simple device structure, good finished product consistency and reliable sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation structure of the oil level inspection window of the utility model;

[0016] Figure 2 This is a schematic diagram of the oil level inspection window structure of the utility model. Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the oil level inspection window structure of the utility model. Figure 2 .

[0018] In the figure, 1 is a housing; 2 is a transparent window; 3 is an observation panel; 4 is a device; 5 is a first sealing ring; 6 is a second sealing ring; 31 is a through hole. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0020] like Figure 1 As shown, the utility model provides an oil level inspection window, comprising: a shell 1 sealed with a device 4, a transparent window 2 is arranged on the shell 1, and an observation plate 3 for isolating bubbles and foreign matter is arranged inside the shell 1.

[0021] Specifically, a mounting hole is provided on the housing of the device 4, an internal thread is provided in the mounting hole, an external thread is provided on the housing 1, and the housing 1 is installed in the mounting hole. In addition, a first sealing ring 5 is installed in the mounting hole, and the sealing ring is an O-type sealing ring.

[0022] Furthermore, the outer edge of the housing 1 is configured as a tightenable outer hexagonal structure, which can be tightened with a wrench during installation to prevent oil leakage. A second sealing ring 6 is installed between the housing 1 and the transparent window 2, and the sealing ring is an O-ring.

[0023] It should be noted that, in the present invention, the transparent window 2 is a window made of transparent acrylic or transparent glass.

[0024] like Figure 2 , 3 As shown, a through hole 31 for observing the passage of liquid is provided in the center of the observation plate 3 . This structure allows the oil to pass through, but isolates the bubbles and foreign matter from reaching the window 2 .

[0025] The specific installation and working process of this utility model is:

[0026] 1. Installation: The inspection window shell is designed with external threads for connection with the equipment shell. When installing, first check and confirm that the sealing surface of the equipment installation hole is intact, and put the sealing ring in place, then screw the inspection window into the installation hole and tighten it;

[0027] 2. Observe the oil level: When hydraulic oil is injected into the equipment, the oil enters the front window of the inspection window through the hole on the observation plate, and the current oil level is displayed on the inspection window glass;

[0028] 3. When bubbles or foreign matter are present in the oil due to the operation of the equipment, the observation plate can effectively isolate the bubbles and foreign matter without affecting the actual position of the oil volume.

[0029] After the inspection window is assembled, the main body is pressed into shape in the mold, completing two actions:

[0030] 1) Roll the thin-walled part of the front end of the shell inwards, press the glass and the sealing ring to seal;

[0031] 2) Roll the shell hole wall inward to cover the observation panel.

[0032] The utility model provides an oil level inspection window. Since a transparent window body for observing the oil level is arranged at the equipment where the oil amount needs to be observed, the oil condition can be observed in real time. Moreover, since the inspection window body is pressed and formed, the connection mode is changed to threaded connection, so that the observation window glass is prevented from being damaged by external forces during installation.

[0033] It is obvious to those skilled in the art that the above-mentioned specific examples are only preferred schemes of the present invention. Therefore, the improvements and changes that may be made by those skilled in the art to certain parts of the present invention still reflect the principles of the present invention and achieve the purpose of the present invention, and all belong to the scope of protection of the present invention.

Claims

1. An oil level inspection window, characterized in that: include: A shell (1) is sealed and connected to a device (4), wherein a transparent window (2) is provided on the shell (1), and an observation plate (3) for isolating air bubbles and foreign matter is provided inside the shell (1).

2. The oil level inspection window according to claim 1, characterized in that: The housing of the device (4) is provided with a mounting hole, an internal thread is provided in the mounting hole, and an external thread is provided on the housing (1), and the housing (1) is mounted in the mounting hole.

3. The oil level inspection window according to claim 2, characterized in that: A first sealing ring (5) is installed in the installation hole.

4. The oil level inspection window according to claim 1 or 2, characterized in that: The outer edge of the shell (1) is arranged as a fastenable outer hexagonal structure.

5. The oil level inspection window according to claim 1 or 2, characterized in that: A second sealing ring (6) is installed between the housing (1) and the transparent window (2).

6. The oil level inspection window according to claim 1, characterized in that: The transparent window (2) is a window made of transparent acrylic or transparent glass.

7. The oil level inspection window according to claim 1, characterized in that: The observation plate (3) is provided at its center with a through hole (31) for observing the passage of liquid.

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