A liquid level monitoring device for oil-immersed transformer

Abstract

The utility model relates to the field of electrical engineering, specifically a liquid level monitoring device for an oil-immersed transformer, comprising a transformer box, a top cover is bolted to the upper end of the transformer box, a scale plate is provided on the lower side of the right end of the top cover; a stabilizing sleeve is fixedly connected to the inner end of the right side of the transformer box, and a mechanical display device is provided inside the stabilizing sleeve; the beneficial effect is: the utility model arranges a mechanical display device, the rise and fall of the liquid level is driven by the height change of the float, and is displayed on the angle change of the pointer through mechanical transmission, the position of the liquid level and its change can be directly seen through the scale of the pointer, and has high stability.

Description

Technical Field

[0001] The utility model relates to the field of electrical engineering, in particular to a liquid level monitoring device for an oil-immersed transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core (magnetic core). Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. In order to ensure the stable operation of the transformer, transformer oil is usually added inside the transformer. In order to prevent transformer oil leakage, liquid level monitoring is required.

[0003] Traditional monitoring devices usually have a sensor device installed inside. However, when in use, the sensor device may cause display errors due to power problems or need to be disassembled and replaced, affecting a certain accuracy. At the same time, the battery replacement operation is also relatively cumbersome. Therefore, the utility model proposes a liquid level monitoring device for an oil-immersed transformer to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid level monitoring device for an oil-immersed transformer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid level monitoring device for an oil-immersed transformer, comprising a transformer box, a top cover is bolted to the upper end of the transformer box, a scale plate is provided on the lower side of the right end of the top cover; a stabilizing sleeve is fixedly connected to the inner end of the right side of the transformer box, and a mechanical display device is provided inside the stabilizing sleeve.

[0006] Preferably, the mechanical display device comprises a support rod, the upper end of the support rod is fixedly connected to a support shaft, the support shaft is fixedly connected to a telescopic rod, and the outer side of the end of the telescopic rod is fixedly connected to a pointer.

[0007] Preferably, a float is fixedly connected to the lower end of the support rod.

[0008] Preferably, a stabilizing plate is fixedly connected to the outer side of the support rod, and the stabilizing plate is correspondingly clamped on the upper end of the stabilizing sleeve.

[0009] Preferably, a rotating shaft platform is fixedly provided on the upper end surface of the right side of the transformer box, and a rubber sleeve is fixedly connected to the upper end of the rotating shaft platform.

[0010] Preferably, the lower end of the pointer is rotatably sleeved inside the rotating shaft platform.

[0011] Preferably, the top cover is provided with a sealing groove on the inner side of the scale plate, and the sealing groove is correspondingly connected to the upper end of the rubber sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a mechanical display device, and the rise and fall of the liquid level is driven by the height change of the float, which is displayed on the angle change of the pointer through mechanical transmission. The position of the liquid level and its change can be directly seen through the scale of the pointer, and the utility model has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0017] Figure 4 It is a partial structural schematic diagram of the utility model.

[0018] In the figure: 1 transformer box, 2 top cover, 3 scale plate, 4 pointer, 5 float, 6 support rod, 7 stabilizing sleeve, 8 stabilizing plate, 9 bracket shaft, 10 telescopic rod, 11 shaft platform, 12 rubber sleeve, 13 sealing slot. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a liquid level monitoring device for an oil-immersed transformer, characterized in that it includes a transformer box 1, a top cover 2 is bolted to the upper end of the transformer box 1, a scale plate 3 is opened on the lower side of the right end of the top cover 2, and the liquid level depth is displayed on the scale plate 3; a stabilizing sleeve 7 is fixedly connected to the inner end of the right side of the transformer box 1, the stabilizing sleeve 7 realizes the stable insertion of the support rod 6, and can ensure the stable up and down movement of the support rod 6, and a mechanical display device is arranged inside the stabilizing sleeve 7.

[0024] The mechanical display device includes a support rod 6, the upper end of the support rod 6 is fixedly connected to a support shaft 9, the support shaft 9 is fixedly connected to a telescopic rod 10, the outer side of the end of the telescopic rod 10 is fixedly connected to a pointer 4, the lower end of the support rod 6 is fixedly connected to a float 5, the outer side of the support rod 6 is fixedly connected to a stabilizing plate 8, and the stabilizing plate 8 is correspondingly connected to the upper end of the stabilizing sleeve 7. When the liquid level rises, the float 5 rises accordingly, driving the support rod 6 to rise. With the cooperation of the support shaft 9, the angle change of the telescopic rod 10 is realized, and at the same time, the liquid level is monitored by the corresponding position of the pointer 4 on the scale plate 3.

[0025] A rotating shaft platform 11 is fixedly provided on the upper end surface of the right side of the transformer box 1, and a rubber sleeve 12 is fixedly connected to the upper end of the rotating shaft platform 11. The lower end of the pointer 4 is rotatably sleeved in the rotating shaft platform 11. The top cover 2 is provided with a sealing groove 13 on the inner side of the scale plate 3, and the sealing groove 13 is correspondingly connected to the upper end of the rubber sleeve 12. The rubber sleeve 12 is used to achieve sealing and fixing, and the rotating shaft platform 11 is used to achieve stable rotation of the pointer 4.

[0026] In actual use, when the liquid level rises, the float 5 rises accordingly, driving the support rod 6 to rise, and with the cooperation of the bracket shaft 9, the angle of the telescopic rod 10 is changed. At the same time, the liquid level is monitored by the corresponding position of the pointer 4 on the scale plate 3. The upper end of the rotating shaft platform 11 is fixedly connected to a rubber sleeve 12, and the lower end of the pointer 4 is rotatably sleeved in the rotating shaft platform 11. The top cover 2 is provided with a sealing groove 13 on the inner side of the scale plate 3, and the sealing groove 13 is correspondingly clamped on the upper end of the rubber sleeve 12. The rubber sleeve 12 is used to achieve sealing and fixation, and the rotating shaft platform 11 is used to achieve stable rotation of the pointer 4.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid level monitoring device for an oil-immersed transformer, characterized in that: include A transformer box (1), wherein a top cover (2) is fixed to the upper end of the transformer box (1) by bolts, and a scale plate (3) is provided on the lower side of the right end of the top cover (2); The right inner end of the transformer box (1) is fixedly connected to a stabilizing sleeve (7), and a mechanical display device is provided inside the stabilizing sleeve (7).

2. A liquid level monitoring device for an oil-immersed transformer according to claim 1, characterized in that: The mechanical display device comprises a support rod (6), the upper end of the support rod (6) is fixedly connected to a support shaft (9), the support shaft (9) is fixedly connected to a telescopic rod (10), and the outer side of the end of the telescopic rod (10) is fixedly connected to a pointer (4).

3. The liquid level monitoring device for an oil-immersed transformer according to claim 2, characterized in that: The lower end of the support rod (6) is fixedly connected with a float (5).

4. The liquid level monitoring device for an oil-immersed transformer according to claim 2, characterized in that: A stabilizing plate (8) is fixedly connected to the outer side of the support rod (6), and the stabilizing plate (8) is correspondingly clamped on the upper end of the stabilizing sleeve (7).

5. The liquid level monitoring device for an oil-immersed transformer according to claim 1, characterized in that: A rotating shaft platform (11) is fixedly arranged on the upper end surface of the right side of the transformer box (1), and a rubber sleeve (12) is fixedly connected to the upper end of the rotating shaft platform (11).

6. A liquid level monitoring device for an oil-immersed transformer according to claim 5, characterized in that: The lower end of the pointer (4) is rotatably sleeved inside the rotating shaft platform (11).

7. The liquid level monitoring device for an oil-immersed transformer according to claim 1, characterized in that: The top cover (2) is provided with a sealing groove (13) on the inner side of the scale plate (3), and the sealing groove (13) is correspondingly connected to the upper end of the rubber sleeve (12).

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