Oil gauge of transformer oil conservator

Abstract

The utility model provides an oil liquid meter of a transformer oil conservator, which relates to the field of oil liquid meters and comprises a detection element, clamping grooves for accommodating rubber sealing rings are arranged on a flange connecting surface of an equipment body and a flange connecting surface of the oil conservator, and annular grooves which are concave inwards are arranged on the outer diameter side and the inner diameter side of each rubber sealing ring. The arc-shaped grooves are formed in the outer diameter side and the inner diameter side of the rubber sealing ring, when the rubber sealing ring is extruded, the rubber sealing ring can deform towards the inner side of the rubber sealing ring along the arc-shaped grooves, the flange connecting face of an equipment body can be attached to the flange connecting face of an oil conservator, and the influence of the natural environment on the rubber sealing ring is reduced; meanwhile, materials in the center of the rubber sealing ring are concentrated, so that the pressure applied to the clamping groove by the rubber sealing ring in the clamping groove is increased, and the sealing effect of the rubber sealing ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil level gauge technology, specifically to an oil level gauge for a transformer oil conservator. Background Technology

[0002] Transformer oil conservator creates conditions for the thermal expansion and contraction of transformer oil. There are corrugated, capsule, and diaphragm types. When the volume of transformer oil expands or decreases with the temperature of the oil, the oil conservator plays the role of regulating the oil volume and ensuring that the transformer oil tank is always full of oil. The oil level gauge is an essential device for detecting the oil level in the transformer oil conservator.

[0003] Currently, the sealing ring used at the connection between the oil gauge and the oil conservator is generally a circular rubber ring. The rubber ring is snapped into an annular groove on the flange connection surface of the equipment body. After the equipment body flange and the oil conservator flange are connected, the rubber ring is squeezed, causing it to deform and tightly press against the two flanges to achieve a seal (e.g., ...). Figure 2 As shown in the figure, however, during long-term use, due to the increased diameter of the rubber ring due to deformation, a certain gap will generally remain between the flange of the equipment body and the oil tank connection end. Under the influence of rain, weathering and high temperature, the compressed and deformed rubber sealing ring is very easy to age, affecting the elasticity and sealing effect of the rubber ring. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an oil level gauge for a transformer oil conservator. By setting arc-shaped grooves on the outer and inner diameter sides of the rubber sealing ring, and simultaneously setting blocking blocks and connecting grooves on the flange connection surface of the equipment body and the flange connection surface of the oil conservator, the rubber sealing ring can deform inwards along the arc-shaped grooves when compressed. This not only ensures that the flange connection surface of the equipment body and the flange connection surface of the oil conservator fit together, reducing the impact of the natural environment on the rubber sealing ring, but also concentrates the material at the center of the rubber sealing ring, thereby increasing the pressure exerted by the rubber sealing ring on the clamping groove and improving the sealing effect of the rubber sealing ring.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an oil level gauge for a transformer oil conservator, including a detection element, wherein a clamping groove for accommodating a rubber sealing ring is provided on both the flange connection surface of the equipment body and the flange connection surface of the oil conservator, and an inwardly recessed annular groove is provided on both the outer diameter side and the inner diameter side of the rubber sealing ring, wherein when the rubber sealing ring is installed inside the clamping groove, the edge of the flange connection surface and the clamping groove that meets the edge of the outer surface of the rubber sealing ring and the annular groove coincides.

[0007] Furthermore, the internal fixing connection of the rubber sealing ring has several nylon threads to restrict the two annular grooves from moving away from each other.

[0008] Furthermore, metal blocks are fixedly connected to both ends of the nylon thread, and the metal blocks are set on the adjacent side of the annular groove in the rubber sealing ring.

[0009] Furthermore, several blocking blocks are fixedly connected to both sides of the clamping groove edge on the connecting surface of the equipment body flange and the connecting surface of the oil conservator flange, and a connecting groove of the same size as the blocking block is opened on the side adjacent to the blocking block of the equipment body flange and the oil conservator flange.

[0010] Furthermore, the blocking blocks and connecting grooves are evenly staggered at the edge of the clamping groove, and the flange of the equipment body and the flange of the oil tank are connected to each other.

[0011] Furthermore, in its natural state, when the rubber sealing ring is installed inside the clamping groove, the top of the blocking block contacts the edge of the outer surface of the rubber sealing ring and the annular groove that is away from the flange connection surface.

[0012] The beneficial effects of this utility model are as follows:

[0013] By setting a rubber sealing ring with an arc-shaped groove and nylon thread, when the rubber sealing ring is squeezed during the connection between the equipment body flange and the oil conservator flange, the rubber sealing ring can deform inward under the guidance of the arc-shaped groove and the tension of the nylon thread. At the same time, the blocking blocks on the connection surfaces of the equipment body flange and the oil conservator flange can prevent the rubber sealing ring from expanding outward into the clamping groove after being squeezed to a large deformation. This not only makes the connection surfaces of the equipment body flange and the oil conservator flange fit together, reducing the gap between the flange connection surfaces and the oil conservator flange connection surfaces, and reducing the impact of the natural environment on the rubber sealing ring, but also concentrates the material in the center of the rubber sealing ring inside the clamping groove, thereby increasing the pressure exerted by the rubber sealing ring on the clamping groove and improving the sealing effect of the rubber sealing ring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 A cross-sectional view of the existing equipment body flange and rubber sealing ring connection structure;

[0016] Figure 3 This is a cross-sectional view of the connection structure between the equipment body flange and the rubber sealing ring of this utility model;

[0017] Figure 4 This is a schematic diagram of the rubber sealing ring structure of this utility model;

[0018] Figure 5 For the present utility model Figure 2 A magnified structural diagram of point A in the diagram.

[0019] The components include: 1. Detection element; 2. Rubber sealing ring; 3. Clamping groove; 4. Annular groove; 5. Nylon wire; 6. Metal block; 7. Blocking block; and 8. Connecting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figures 1-5 An oil level gauge for a transformer oil conservator includes a detection element 1. Both the flange connection surface of the equipment body and the flange connection surface of the oil conservator are provided with clamping grooves 3 for accommodating rubber sealing rings 2. Both the outer diameter side and the inner diameter side of the rubber sealing ring 2 are provided with inwardly recessed annular grooves 4. When the rubber sealing ring 2 is installed inside the clamping groove 3, the edge where the flange connection surface and the clamping groove 3 meet coincides with the edge where the outer surface of the rubber sealing ring 2 meets the annular groove 4.

[0022] In this solution: by setting a rubber sealing ring 2 with an annular groove 4, the rubber sealing ring 2 can deform along the annular groove 4 towards the inside of the rubber sealing ring 2 when it is squeezed by the connection surface of the equipment body flange and the connection surface of the oil conservator flange. This causes the material of the rubber sealing ring 2 to concentrate inside the clamping groove 3, increasing the pressure exerted by the rubber sealing ring 2 on the clamping groove 3 and improving the sealing effect of the rubber sealing ring 2 between the connection surface of the equipment body flange and the connection surface of the oil conservator flange.

[0023] The rubber sealing ring 2 has several nylon threads 5 inside for keeping the two annular grooves 4 away from each other.

[0024] In this embodiment: by setting multiple nylon threads 5 with uniform spacing inside the rubber sealing ring 2, the friction of the nylon threads 5 in the rubber sealing ring 2 is utilized. When the rubber sealing ring 2 is squeezed and deformed, a tensile force can be applied to the two annular grooves 4 inside the rubber sealing ring 2, so that the rubber sealing ring 2 can be stably deformed inward.

[0025] Metal blocks 6 are fixedly connected to both ends of the nylon thread 5. The metal blocks 6 are located on the side adjacent to the annular groove 4 in the rubber sealing ring 2.

[0026] In this embodiment, by connecting the two ends of the nylon wire 5 with the metal block 6, the nylon wire 5 can be stably connected inside the rubber sealing ring 2, thereby increasing the tensile force of the nylon wire 5 when the arc-shaped groove deforms.

[0027] Several blocking blocks 7 are fixedly connected to both sides of the edge of the clamping groove 3 on the connecting surface of the equipment body flange and the connecting surface of the oil conservator flange, and a connecting groove 8 with the same size as the blocking block 7 is opened on the side adjacent to the blocking block 7 of the equipment body flange and the oil conservator flange.

[0028] In this embodiment: by the cooperation of the blocking block 7 and the connecting groove 8, the edge of the rubber sealing ring 2 can be blocked, preventing the rubber sealing ring 2 from expanding outward of the clamping groove 3 when it is squeezed to a large deformation. This causes the material of the rubber sealing ring 2 to concentrate inside the clamping groove 3 after compression deformation, thereby increasing the pressure applied by the rubber sealing ring 2 to the clamping groove 3 and improving the sealing effect of the rubber sealing ring 2.

[0029] The blocking block 7 and the connecting groove 8 are evenly staggered on the edge of the clamping groove 3, and the flange of the equipment body and the flange of the oil tank are connected to each other.

[0030] In this embodiment, by uniformly and alternately arranging the blocking block 7 and the clamping groove 3, not only can the equipment body flange and the oil tank flange be connected to each other, but the blocking block 7 can also be uniformly blocked on the outside of the rubber sealing ring 2.

[0031] In its natural state, when the rubber sealing ring 2 is installed inside the clamping groove 3, the top of the blocking block 7 contacts the edge of the outer surface of the rubber sealing ring 2 and the annular groove 4 that is away from the flange connection surface.

[0032] In this embodiment, the blocking block 7 can block the edge where the rubber sealing ring 2 meets the annular groove 4 when the rubber sealing ring 2 is initially deformed, thereby restricting the deformation area of ​​the rubber sealing ring 2 in the initial stage of extrusion deformation to the inside of the clamping groove 3.

[0033] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oil level gauge for a transformer oil conservator, comprising a detection element (1), characterized in that: Both the flange connection surface of the equipment body and the flange connection surface of the oil tank are provided with clamping grooves (3) to accommodate the rubber sealing ring (2). The outer diameter side and the inner diameter side of the rubber sealing ring (2) are provided with inwardly recessed annular grooves (4). When the rubber sealing ring (2) is installed inside the clamping groove (3), the edge where the flange connection surface and the clamping groove (3) meet coincides with the edge where the outer surface of the rubber sealing ring (2) and the annular groove (4) meet.

2. The oil level gauge for a transformer oil conservator according to claim 1, characterized in that: The rubber sealing ring (2) has several nylon lines (5) inside for fixing the two annular grooves (4) away from each other.

3. The oil level gauge for a transformer oil conservator according to claim 2, characterized in that: The two ends of the nylon thread (5) are fixedly connected to metal blocks (6), which are set on the side adjacent to the annular groove (4) in the rubber sealing ring (2).

4. The oil level gauge for a transformer oil conservator according to claim 1, characterized in that: Several blocking blocks (7) are fixedly connected to both sides of the edge of the clamping groove (3) on the connecting surface of the equipment body flange and the connecting surface of the oil conservator flange, and a connecting groove (8) with the same size as the blocking block (7) is opened on the side adjacent to the blocking block (7) of the equipment body flange and the oil conservator flange.

5. The oil level gauge for a transformer oil conservator according to claim 4, characterized in that: The blocking block (7) and the connecting groove (8) are evenly staggered on the edge of the clamping groove (3), and the flange of the equipment body and the flange of the oil tank are connected to each other.

6. The oil level gauge for a transformer oil conservator according to claim 4 or 5, characterized in that: In its natural state, when the rubber sealing ring (2) is installed inside the clamping groove (3), the top of the blocking block (7) contacts the edge of the outer surface of the rubber sealing ring (2) and the annular groove (4) that is away from the flange connection surface.

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