Relay sealing structure capable of preventing oil leakage

Abstract

The utility model discloses an oil-leakage-proof relay sealing structure which comprises a sealing assembly, the sealing assembly comprises a screw head, one end of the screw head is fixedly connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a connecting nut, one end of the connecting nut is fixedly connected with a first limiting ring, and the other end of the connecting nut is fixedly connected with a second limiting ring. A first limiting ring is fixedly connected to one end of the screw head, a first sealing gasket is clamped in the first limiting ring, a second limiting ring is fixedly connected to one end of the screw head, a second sealing gasket is clamped in the second limiting ring, and the outer wall of the threaded rod is sleeved with a supporting ring. According to the utility model, the screw head and the support ring are inserted into the open hole of the relay shell, and the connecting nut is tightened to enable the first limiting ring and the first sealing washer to be tightly attached to the inner surface of the relay shell, so that the sealing structure is fixedly arranged in the open hole of the relay shell, the operation is simple, the fastening nut is tightened for fastening, and the reliability is high. And the connecting and fixing effect of the sealing structure at the opening is improved.

Description

Technical Field

[0001] This utility model relates to the field of relay sealing structure technology, and in particular to a relay sealing structure that prevents oil leakage. Background Technology

[0002] Before performing dynamic oil pressure acceleration test or oil flow sensitivity test, the openings on the relay housing are sealed by a sealing structure. This prevents the transformer oil inside the relay from leaking out while ensuring the accuracy of the relay test.

[0003] Currently, existing sealing structures are not convenient to assemble onto the openings of relay housings during use, and the connection and fixation effect of the sealing structure at the openings is not good. Therefore, in order to advance industry technology, better realize the sealing function of relay housing openings, and improve core technology competitiveness, this application proposes a new implementation scheme that is different from the sealing structure in the prior art. Utility Model Content

[0004] The purpose of this invention is to solve the problems that existing sealing structures are not easy to assemble into the openings of the relay housing during use, and the connection and fixing effect of the sealing structure at the openings is not good. Therefore, an oil-leakage-proof relay sealing structure is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A leak-proof relay sealing structure includes a sealing assembly. The sealing assembly includes a screw head, one end of which is fixedly connected to a threaded rod. A connecting nut is threaded onto the outer wall of the threaded rod. One end of the connecting nut is fixedly connected to a first limiting ring. A first sealing washer is engaged inside the first limiting ring. One end of the screw head is fixedly connected to a second limiting ring. A second sealing washer is engaged inside the second limiting ring.

[0007] Furthermore, a support ring is fitted onto the outer wall of the threaded rod, and the support ring is located inside the first sealing washer and the second sealing washer.

[0008] Furthermore, the support ring is a rubber ring, and the support ring is located between the screw head and the connecting nut.

[0009] Furthermore, the outer wall of the threaded rod is threaded with a fastening nut, which contacts the connecting nut.

[0010] Furthermore, a groove is provided on one side of the second limiting ring, and a magnetic ring is engaged in the groove.

[0011] Furthermore, a protective cover is attached to one side of the magnetic ring, covering the outside of the screw head.

[0012] Furthermore, the protective cover is made of iron.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By inserting the screw head and support ring into the opening of the relay housing, and then tightening the connecting nut, the first limiting ring and the first sealing washer are tightly attached to the inner surface of the relay housing, thereby fixing the sealing structure in the opening of the relay housing. The operation is simple, and tightening the fastening nut enhances the connection and fixing effect of the sealing structure at the opening.

[0015] 2. The first and second sealing gaskets form a double seal, improving the sealing performance of the sealing structure.

[0016] 3. By attaching the protective cover to the magnetic ring, the protective cover is placed over one end of the screw head, thereby preventing external forces from impacting the screw head and thus preventing the sealing structure from loosening. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a relay sealing structure for preventing oil leakage proposed in this utility model;

[0018] Figure 2 A cross-sectional view of the sealing assembly of a relay sealing structure for preventing oil leakage, as proposed in this utility model.

[0019] Figure 3 A cross-sectional view of the protective cover and magnet ring in the separated state of the oil-leakage-proof relay sealing structure proposed in this utility model.

[0020] Figure 4 This is a cross-sectional front view schematic diagram of a relay sealing structure for preventing oil leakage proposed in this utility model;

[0021] Figure 5 A schematic diagram of the explosion separation structure of the sealing component of the oil-leakage-proof relay sealing structure proposed in this utility model;

[0022] Figure 6 This is a cross-sectional view of the installation and use of the oil-leakage-proof relay sealing structure proposed in this utility model.

[0023] In the figure: 1. Sealing assembly; 101. Screw head; 102. Threaded rod; 103. Connecting nut; 104. First limiting ring; 105. First sealing washer; 106. Second limiting ring; 107. Second sealing washer; 2. Support ring; 3. Fastening nut; 4. Groove; 5. Magnet ring; 6. Protective cover. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-6 A leak-proof relay sealing structure includes a sealing component 1. The sealing component 1 includes a screw head 101, a threaded rod 102 welded to one end of the screw head 101, a connecting nut 103 threaded to the outer wall of the threaded rod 102, a first limiting ring 104 welded to one end of the connecting nut 103, a first sealing washer 105 snapped into the first limiting ring 104, and a second limiting ring 106 welded to one end of the screw head 101, a second sealing washer 107 snapped into the second limiting ring 106. When the screw head 101 and the support ring 2 are inserted into the opening of the relay housing, the second limiting ring 106 and the second sealing washer 107 are tightly attached to the outer surface of the relay housing. Then, the connecting nut 103 is tightened so that the first limiting ring 104 and the first sealing washer 105 are tightly attached to the inner surface of the relay housing, thereby fixing the sealing structure in the opening of the relay housing.

[0026] The outer wall of the threaded rod 102 is fitted with a support ring 2. The support ring 2 can be replaced according to the diameter of the opening so as to be suitable for sealing openings of different diameters. The support ring 2 is located inside the first sealing washer 105 and the second sealing washer 107. The support ring 2 is a rubber ring and is located between the screw head 101 and the connecting nut 103.

[0027] The outer wall of the threaded rod 102 is threaded with a fastening nut 3, which contacts the connecting nut 103. A groove 4 is provided on one side of the second limiting ring 106, and a magnetic ring 5 is engaged in the groove 4. A protective cover 6 is adsorbed on one side of the magnetic ring 5. The protective cover 6 covers the outside of the screw head 101 and is adsorbed on the magnetic ring 5, thereby covering one end of the screw head 101 to prevent external force from impacting the screw head 101 and thus prevent the sealing structure from loosening. The protective cover 6 is made of iron.

[0028] The working principle of this embodiment is as follows: In use, firstly, the support ring 2 is fitted onto the outer wall of the threaded rod 102 and located inside the second sealing washer 107. Then, the screw head 101 and the support ring 2 are inserted into the opening of the relay housing. At this time, the second limiting ring 106 and the second sealing washer 107 are in close contact with the outer surface of the relay housing. Then, the connecting nut 103 is tightened so that the first limiting ring 104 and the first sealing washer 105 are in close contact with the inner surface of the relay housing, thereby fixing the sealing structure in the opening of the relay housing. The first sealing washer 105 and the second sealing washer 107 form a double seal inside and outside. Then, the fastening nut 3 is tightened for fastening. Then, the protective cover 6 is adsorbed onto the magnetic ring 5, thereby covering one end of the screw head 101 to prevent external force from impacting the screw head 101 and thus preventing the sealing structure from loosening.

[0029] 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. A relay sealing structure for preventing oil leakage, comprising a sealing assembly (1), characterized in that, The sealing assembly (1) includes a screw head (101), one end of which is fixedly connected to a threaded rod (102), the outer wall of which is threadedly connected to a connecting nut (103), one end of which is fixedly connected to a first limiting ring (104), a first sealing washer (105) is snapped inside the first limiting ring (104), and one end of which is fixedly connected to a second limiting ring (106), a second sealing washer (107) is snapped inside the second limiting ring (106).

2. The oil-leakage-proof relay sealing structure according to claim 1, characterized in that, The outer wall of the threaded rod (102) is fitted with a support ring (2), which is located inside the first sealing gasket (105) and the second sealing gasket (107).

3. The oil-leakage-proof relay sealing structure according to claim 2, characterized in that, The support ring (2) is a rubber ring, and the support ring (2) is located between the screw head (101) and the connecting nut (103).

4. The oil-leakage-proof relay sealing structure according to claim 1, characterized in that, The outer wall of the threaded rod (102) is threaded with a fastening nut (3), which contacts the connecting nut (103).

5. The oil-leakage-proof relay sealing structure according to claim 1, characterized in that, The second limiting ring (106) has a groove (4) on one side, and a magnet ring (5) is engaged in the groove (4).

6. The oil-leakage-proof relay sealing structure according to claim 5, characterized in that, A protective cover (6) is attached to one side of the magnetic ring (5), and the protective cover (6) covers the outside of the screw head (101).

7. The oil-leakage-proof relay sealing structure according to claim 6, characterized in that, The protective cover (6) is made of iron.

Images