Oil drainage joint of transformer

Abstract

The utility model discloses an oil drainage connector of a transformer, and relates to the technical field of transformers. The oil drainage joint comprises a bottom plate, an oil drainage joint main body and a cylindrical seat, by arranging the cylindrical seat, the dredging cone, the linkage rod, the connecting spring, the connector, the bending plate and the downward pressing mounting plate, the oil drainage connector body is driven to move downwards, then the dredging cone and the connector enter the oil drainage connector body, the connector is extruded when entering the oil drainage connector body, then the linkage rod is driven to swing, the connecting spring is extruded, and the oil drainage connector is driven to be dredged. And along with downward movement of the oil drainage connector body, the connector and the bent plate completely enter the oil drainage connector body, the connecting spring recovers deformation, the connector and the bent plate can be close to the inner wall of the oil drainage connector body, and the interior of the oil drainage connector body is dredged in cooperation with the dredging cone. And the connector and the bent plate are matched with the dredging cone to dredge the interior of the oil drainage connector body, and the dredging efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, and in particular relates to a transformer oil drain connector. Background Technology

[0002] A transformer drain connector is a connector used for draining or adding oil during transformer maintenance. During transformer operation, it is necessary to regularly check the quality and level of the transformer oil to ensure normal operation. The drain connector is usually located at the bottom of the transformer and is used to drain old oil or add new oil. Through the drain connector, water, impurities or aged oil that may have accumulated inside the transformer can be drained, keeping the inside of the transformer clean and in normal working condition.

[0003] CN222103117U discloses an oil draining connector for a transformer. By setting up a dredging mechanism and a disassembly mechanism, the lifting dredging cone is inserted into the body of the oil draining connector by pulling the connecting plate to dredge the oil draining connector. This effectively avoids blockage caused by the accumulation of impurities inside the oil draining connector and can effectively dredge the oil draining connector.

[0004] In summary, simply using a drain cone to unclog the drain joint is insufficient to remove impurities, resulting in low unclogging efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a drain connector for a transformer, thereby solving the problems mentioned in the background section.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a transformer oil drain connector, comprising a base plate, a drain connector body, and a cylindrical seat. An installation ring is fixedly connected to the center of the upper surface of the base plate. The cylindrical seat is disposed within the installation ring and snap-fitted to it. A groove is formed inside the cylindrical seat. Multiple sets of connecting brackets are evenly distributed and fixedly connected to the periphery of the inner wall of the groove. A linkage rod is hinged inside each connecting bracket. A connecting spring is fixedly connected between one side of the linkage rod and the inner wall of the connecting bracket. A connector head is fixedly connected to one end of the linkage rod. The connector head is disposed on the outer side of the cylindrical seat. A bending plate is fixedly connected to the upper surface of the connector head. A drain cone is fixedly connected to the center of the interior of the cylindrical seat.

[0008] Support rods are fixedly connected to both sides of the upper surface of the base plate. A mounting plate is slidably connected between the two sets of support rods. A circular groove is opened in the middle of the mounting plate, and the circular groove corresponds to the cylindrical seat. A connecting plate is fixedly connected to the periphery of the support rod. A cooperating spring is installed between the upper surface of the connecting plate and the bottom surface of the mounting plate. The cooperating spring is located on the periphery of the support rod.

[0009] A connecting shell is installed around the periphery of the main body of the drain connector. The connecting shell is set in a circular groove and slides with the groove. Multiple sets of positioning holes are opened on one side of the connecting shell. A fastening screw is provided inside the mounting plate. One end of the fastening screw is threadedly connected to the positioning hole. By using the fastening screw to thread the positioning hole of the connecting shell, the main body of the drain connector can be removed from the mounting plate, avoiding obstruction of the use of the drain connector, and the operation is simple and convenient.

[0010] The top of the drain connector body is equipped with a telescopic tube, and one end of the telescopic tube is equipped with a drain connection pipe.

[0011] Both the matching spring and the connecting spring are made of plastic. Using plastic material effectively reduces the impact of impurities inside the drain connector body on the spring and improves its service life.

[0012] Both ends of the mounting plate are fixedly connected to pressure plates; by setting pressure plates, it is easy to press down the mounting plate.

[0013] This utility model has the following beneficial effects:

[0014] This invention comprises a cylindrical base, a drain cone, a connecting frame, a linkage rod, a connecting spring, a connector, and a bending plate. A pressing mounting plate causes the drain connector body to move downwards, allowing the drain cone and connector to enter the drain connector body. Upon entering the drain connector body, the connector is compressed, causing the linkage rod to swing and compress the connecting spring. As the drain connector body moves downwards, the connector and bending plate are fully inserted into the interior of the drain connector body. The connecting spring then returns to its original shape, allowing the connector and bending plate to engage with the drain connector. The inner walls of the head body are close together, and the drain cone is used to unclog the inside of the drain connector body. Loosen the mounting plate, and under the action of the spring, the drain connector body moves upward. Repeat this process to unclog the drain connector body. Compared with the existing technology, the combination of the connector head and bending plate with the drain cone to unclog the inside of the drain connector body is more efficient. At the same time, the cylindrical seat and the mounting ring are snap-fitted, which allows the cylindrical seat to be removed from the mounting ring, making it convenient to clean the inside of the cylindrical seat, reducing the accumulation of impurities and improving service life.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model;

[0018] Figure 2 This is a right view of the assembly structure of this utility model;

[0019] Figure 3 for Figure 2 Partial schematic diagram of the cross-sectional structure of the middle AA section;

[0020] Figure 4 This is a bottom view of the assembly structure of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Base plate; 101. Support rod; 102. Mounting plate; 103. Connecting plate; 104. Matching spring; 105. Fastening screw; 106. Mounting ring; 107. Pressure plate; 2. Drain connector body; 201. Connecting shell; 202. Telescopic tube; 203. Positioning hole; 204. Drain connecting tube; 3. Cylindrical seat; 301. Unblocking cone; 302. Connecting frame; 303. Linkage rod; 304. Connecting spring; 305. Connector; 306. Bending plate. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figures 1-4 As shown, this utility model is a drain connector for a transformer, including a base plate 1, a drain connector body 2, and a cylindrical seat 3. An installation ring 106 is fixedly connected to the middle of the upper surface of the base plate 1. The cylindrical seat 3 is disposed inside the installation ring 106 and is snapped together with the installation ring 106. A groove is provided inside the cylindrical seat 3. Multiple sets of connecting frames 302 are evenly distributed and fixedly connected to the periphery of the inner wall of the groove. A linkage rod 303 is hinged inside the connecting frame 302. A connecting spring 304 is fixedly connected between one side of the linkage rod 303 and the inner wall of the connecting frame 302. A connector head 305 is fixedly connected to one end of the linkage rod 303. The connector head 305 is disposed on the outer side of the cylindrical seat 3. A bending plate 306 is fixedly connected to the upper surface of the connector head 305. A drain cone 301 is fixedly connected to the middle position inside the cylindrical seat 3.

[0027] Support rods 101 are fixedly connected to both sides of the upper surface of the base plate 1. A mounting plate 102 is slidably connected between the two sets of support rods 101. A circular groove is opened in the middle of the mounting plate 102, which corresponds to the cylindrical seat 3. A connecting plate 103 is fixedly connected to the periphery of the support rods 101. A cooperating spring 104 is installed between the upper surface of the connecting plate 103 and the bottom surface of the mounting plate 102. The cooperating spring 104 is located on the periphery of the support rods 101.

[0028] A connecting shell 201 is installed on the periphery of the drain connector body 2. The connecting shell 201 is set in a circular groove and slides in the groove. Multiple positioning holes 203 are opened on one side of the connecting shell 201. A fastening screw 105 is provided inside the mounting plate 102. One end of the fastening screw 105 is threadedly connected to the positioning hole 203. By using the fastening screw 105 to threadedly connect to the positioning hole 203 of the connecting shell 201, the drain connector body 2 can be removed from the mounting plate 102, avoiding obstruction of the use of the drain connector body 2. The operation is simple and convenient.

[0029] The top of the drain connector body 2 is equipped with a telescopic tube 202, and one end of the telescopic tube 202 is equipped with a drain connection tube 204.

[0030] Both the spring 104 and the connecting spring 304 are made of plastic. The use of plastic material effectively reduces the impact of impurities in the drain connector body 2 on the spring and improves its service life.

[0031] Both ends of the mounting plate 102 are fixedly connected to pressure plates 107; by setting pressure plates 107, it is easy to press down the mounting plate 102.

[0032] It should be further explained that the connector 305 and the bending plate 306 are located directly below the drain connector body 2. The drain connector body 2 is mostly a conical cylindrical shape. The connector 305 and the bending plate 306 are adapted to the diameter of the drain connector body 2. The cylindrical seat 3 and the mounting ring 106 are in a snap-fit ​​fit. The appropriate connector 305 and bending plate 306 can be replaced according to the diameter of the drain connector body 2 that needs to be unclogged. In actual use, the drain connector body 2 is placed inside the mounting plate 102, and the drain connector body 2 is positioned and installed by threading the fastening screws 105 into the positioning holes 203 on the connecting shell 201. Then, the pressure plate 107 presses down on the mounting plate 102, and the spring 104 deforms under force, causing the mounting plate 102 to move the drain connector body 2 downward. This allows the unblocking cone 301 and the connector head 305 to enter the drain connector body 2. When the connector head 305 enters the inlet of the drain connector body 2, it is squeezed, which in turn causes the linkage rod 303 to swing, squeezing the connecting spring 304. As the drain connector body 2 moves downward, the connector head 305 and the bending plate 306 are completely inserted into the interior of the drain connector body 2. The connecting spring 304 returns to its original deformation, allowing the connector 305 and the bending plate 306 to approach the inner wall of the drain connector body 2. This, combined with the unclogging cone 301, clears the inside of the drain connector body 2. Loosening the mounting plate 102, the drain connector body 2 moves upward under the action of the spring 104. This process is repeated to clear the inside of the drain connector body 2. Compared with existing technologies, the combination of the connector 305 and the bending plate 306 with the unclogging cone 301 results in higher unclogging efficiency. Simultaneously, the cylindrical seat 3 and the mounting ring 106 are snap-fitted together, allowing the cylindrical seat 3 to be removed from the mounting ring 106 for easy cleaning, reducing impurity accumulation and extending service life.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drain connector for a transformer, comprising a base plate (1), a drain connector body (2), and a cylindrical seat (3), characterized in that: A mounting ring (106) is fixedly connected to the middle of the upper surface of the base plate (1). The cylindrical seat (3) is located inside the mounting ring (106) and is snapped together with the mounting ring (106). A groove is provided inside the cylindrical seat (3). Multiple sets of connecting frames (302) are evenly distributed and fixedly connected to the periphery of the inner wall of the groove. A linkage rod (303) is hinged inside the connecting frame (302). A connecting spring (304) is fixedly connected between one side of the linkage rod (303) and the inner wall of the connecting frame (302). A connector (305) is fixedly connected to one end of the linkage rod (303). The connector (305) is located on the outside of the cylindrical seat (3). A bending plate (306) is fixedly connected to the upper surface of the connector (305). A drain cone (301) is fixedly connected to the middle position inside the cylindrical seat (3).

2. The oil drain connector of a transformer according to claim 1, characterized in that, Support rods (101) are fixedly connected to both sides of the upper surface of the base plate (1). A mounting plate (102) is slidably connected between the two sets of support rods (101). A circular groove is opened in the middle of the mounting plate (102), which corresponds to the cylindrical seat (3). A connecting plate (103) is fixedly connected to the periphery of the support rod (101). A cooperating spring (104) is installed between the upper surface of the connecting plate (103) and the bottom surface of the mounting plate (102). The cooperating spring (104) is located on the periphery of the support rod (101).

3. The oil drain connector of a transformer according to claim 2, characterized in that, A connecting shell (201) is installed on the periphery of the oil drain connector body (2). The connecting shell (201) is set in a circular groove and slides with the circular groove. Multiple positioning holes (203) are opened on one side of the connecting shell (201). A fastening screw (105) is provided inside the mounting plate (102). One end of the fastening screw (105) is threadedly connected to the positioning hole (203).

4. The oil drain connector of a transformer according to claim 3, characterized in that, The top end of the drain connector body (2) is equipped with a telescopic tube (202), and one end of the telescopic tube (202) is equipped with a drain connection tube (204).

5. The oil drain connector of a transformer according to claim 4, characterized in that, Both the matching spring (104) and the connecting spring (304) are made of plastic.

6. The oil drain connector of a transformer according to claim 5, characterized in that, Pressure plates (107) are fixedly connected to both ends of the mounting plate (102).

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