Top oil port sealing device of transformer oil conservator

Abstract

The top oil port sealing device of the transformer oil conservator comprises an oil conservator body, an oil inlet is formed in the top of the oil conservator body, a butt joint sealing ring is arranged on the inner wall of the oil inlet, two sliding rails are installed on the portions, on the two sides of the oil inlet, of the oil conservator body, and sliding sealing mechanisms are installed on the sliding rails in a sliding mode. The oil conservator body is further fixedly provided with an electric push rod, the output end of the electric push rod is fixedly connected with the sliding sealing mechanism, the movable sealing assembly is in movable sealing butt joint with and separated from the butt joint sealing ring of the oil inlet, and then the electric push rod moves in the horizontal position. The top oil port of the transformer oil conservator can be opened and closed conveniently, the automation degree is high, a sealing cover does not need to be stored independently, and oil injection and oil pumping are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oil port sealing of a transformer conservator, in particular to a sealing device for the oil port at the top of a transformer conservator. Background Art

[0002] The conservator is commonly known as an oil pillow, which is a cylindrical container placed horizontally above the oil tank and connected to the oil tank of the transformer by a pipeline. When the transformer oil expands due to heat, the oil flows from the oil tank to the conservator; when the transformer oil contracts due to cold, the oil flows from the conservator to the oil tank.

[0003] In the prior art, the oil port sealing of the transformer conservator has the problems of cumbersome opening and closing steps and low automation degree, resulting in inconvenient opening and closing of the oil port at the top of the transformer conservator, and the sealing cover is not convenient for temporary storage.

[0004] Therefore, aiming at the deficiencies of the prior art, it is very necessary to provide a sealing device for the oil port at the top of a transformer conservator to solve the deficiencies of the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a sealing device for the oil port at the top of a transformer conservator. The sealing device for the oil port at the top of the transformer conservator realizes the movable sealing docking and separation between the movable sealing assembly and the docking sealing ring of the oil inlet through the movable sealing docking and separation between the movable sealing assembly and the docking sealing ring of the oil inlet, and then moves horizontally through the electric push rod, so that the opening and closing of the oil port at the top of the transformer conservator are more convenient, the automation degree is high, and there is no need to store the sealing cover separately, and the oil injection and oil pumping are more convenient.

[0006] The above object of the utility model is achieved by the following technical means.

[0007] Provide a sealing device for the oil port at the top of a transformer conservator, including a conservator body. An oil inlet is arranged at the top of the conservator body. A docking sealing ring is arranged on the inner wall of the oil inlet. Two sliding tracks are installed on the conservator body on both sides of the oil inlet. A sliding sealing mechanism is slidably installed on the sliding tracks. An electric push rod is also fixedly installed on the conservator body. The output end of the electric push rod is fixedly connected with the sliding sealing mechanism;

[0008] The sliding sealing mechanism includes an outer sealing cover. Two connecting arms are installed on the side wall of the outer sealing cover. A slider is fixedly installed at one end of the connecting arm close to the sliding track. The slider is slidably matched with the sliding track. The outer sealing cover is movably matched with the oil inlet. A moving positioning block is also fixedly installed on the side wall of the outer sealing cover. The moving positioning block is fixedly connected with the output end of the electric push rod. An activity positioning groove is opened inside the outer sealing cover. An activity sealing assembly is fixedly installed inside the outer sealing cover.

[0009] Specifically, the movable sealing assembly includes a movable sealing cover which is movably installed inside the movable positioning groove. Two guiding columns are fixedly installed above the movable sealing cover. The two guiding columns movably pass through the outer sealing cover body and extend to the top of the outer sealing cover body. A return spring is installed between the movable sealing cover and the outer sealing cover body outside the guiding columns. The top of the two guiding columns is fixedly installed with an upper pressing cover, and the top of the upper pressing cover is fixedly installed with a handle.

[0010] Preferably, a limiting sliding groove is formed in the outer sealing cover body, and a limiting support block is slidably installed inside the limiting sliding groove. The limiting support block is movably installed between the upper pressing cover and the outer sealing cover body.

[0011] Specifically, a transition guiding inclined block is fixedly installed on the side wall of the outer sealing cover body far away from the electric push rod, and a guiding arc surface is arranged at the bottom of the transition guiding inclined block.

[0012] Furthermore, the movable sealing cover is movably matched with the docking sealing ring.

[0013] In the utility model, the movable sealing assembly is movably sealed and docked with and separated from the docking sealing ring of the oil inlet, and then the horizontal position is moved through the electric push rod, so that the opening and closing of the oil port at the top of the transformer conservator are more convenient, the degree of automation is high, and there is no need to store the sealing cover body separately, and the oil injection and oil extraction are more convenient. Description of the Drawings

[0014] The present utility model is further described with the accompanying drawings, but the content in the drawings does not constitute any limitation to the present utility model.

[0015] Figure 1 is a three-dimensional structural schematic diagram of a sealing device for the oil port at the top of a transformer conservator of the present utility model.

[0016] Figure 2 is a side cross-sectional schematic diagram of the movable sealing assembly of a sealing device for the oil port at the top of a transformer conservator of the present utility model.

[0017] Figure 3 is an enlarged schematic diagram at position A of a sealing device for the oil port at the top of a transformer conservator of the present utility model.

[0018] From Figures 1 to 3 it includes:

[0019] 1. Conservator body;

[0020] 2. Oil inlet;

[0021] 3. Docking sealing ring;

[0022] 4. Sliding track;

[0023] 5. Sliding sealing mechanism;

[0024] 51. Outer sealing cover body, 52. Connecting arm, 53. Slide block, 54. Moving positioning block;

[0025] 6. Movable sealing assembly;

[0026] 61. Movable sealing cover, 62. Guide post, 63. Return spring, 64. Upper pressing cover, 65. Handle;

[0027] 7. Limit sliding groove;

[0028] 8. Limit support block;

[0029] 9. Transition guide inclined block;

[0030] 10. Guide arc surface;

[0031] 11. Movable positioning groove;

[0032] 12. Electric push rod. Specific embodiments

[0033] The present utility model will be further described in conjunction with the following embodiments.

[0034] Embodiment 1.

[0035] As Figures 1-3 shown, a sealing device for the top oil port of a transformer oil conservator includes an oil conservator body 1. An oil inlet 2 is provided at the top of the oil conservator body 1. A butt sealing ring 3 is provided on the inner wall of the oil inlet 2. Two sliding tracks 4 are installed on the oil conservator body 1 on both sides of the oil inlet 2. A sliding sealing mechanism 5 is slidably installed on the sliding tracks 4. An electric push rod 12 is also fixedly installed on the oil conservator body 1. The output end of the electric push rod 12 is fixedly connected to the sliding sealing mechanism 5.

[0036] This application is used for automatically and movably sealing the top oil port of a transformer oil conservator. First, a butt sealing ring 3 with a height lower than that of the oil inlet 2 is arranged inside the oil inlet 2 for butt joint, which can effectively protect and seal the lateral gap. The electric push rod 12 drives the sliding sealing mechanism 5 to slide on the sliding tracks 4 and simultaneously makes a movable fit and seal with the oil inlet 2.

[0037] The sliding seal mechanism 5 includes an outer seal cover body 51. Two connecting arms 52 are installed on the side wall of the outer seal cover body 51. One end of the connecting arm 52 close to the sliding track 4 is fixedly installed with a slider 53. The slider 53 is slidably matched with the sliding track 4. The outer seal cover body 51 is movably matched with the oil inlet 2. A moving positioning block 54 is also fixedly installed on the side wall of the outer seal cover body 51. The moving positioning block 54 is fixedly connected to the output end of the electric push rod 12. An activity positioning groove 11 is opened inside the outer seal cover body 51. An activity seal assembly 6 is fixedly installed inside the outer seal cover body 51. The outer seal cover body 51 can be slidably limited on the sliding track 4 without being stored separately.

[0038] The sliding seal mechanism 5 is docked with the oil inlet 2 through the outer seal cover body 51. The outer seal cover body 51 with the same outer diameter as the oil inlet 2 is adopted. Then, through the installation of the connecting arm 52 and the slider 53, it is slidably matched with the sliding track 4. The output end of the electric push rod 12 acts on the moving positioning block 54 to push or pull the outer seal cover body 51 to move. The outer seal cover body 51 is hermetically matched with the oil inlet 2 and the docking seal ring 3 through the activity of the activity seal assembly 6 inside the activity positioning groove 11.

[0039] The activity seal assembly 6 includes an activity seal cover 61. The activity seal cover 61 is movably installed inside the activity positioning groove 11. Two guiding columns 62 are fixedly installed above the activity seal cover 61. The two guiding columns 62 movably pass through the outer seal cover body 51 and extend to the top of the outer seal cover body 51. A return spring 63 is installed between the activity seal cover 61 and the outer seal cover body 51 on the outside of the guiding column 62. The tops of the two guiding columns 62 are fixedly installed with an upper pressing cover 64. A handle 65 is fixedly installed on the top of the upper pressing cover 64.

[0040] By pulling the handle 65, the activity seal assembly 6 can drive the upper pressing cover 64 to move up and down. The upper pressing cover 64 drives the two guiding columns 62 to move up and down on the outer seal cover body 51, and then drives the activity seal cover 61 to elastically move up and down inside the activity positioning groove 11. The activity seal cover 61 is elastically docked and sealed with the docking seal ring 3.

[0041] A limit sliding groove 7 is opened on the outer seal cover body 51. A limit support block 8 is slidably installed inside the limit sliding groove 7. The limit support block 8 is movably installed between the upper pressing cover 64 and the outer seal cover body 51.

[0042] The limit support block 8 can be installed inside the limit sliding groove 7 opened on the outer seal cover body 51. When it is necessary to move the outer seal cover body 51 away, pull the handle 65 upward and pad the limit support block 8 inside the limit sliding groove 7. Then the activity seal cover 61 can be separated from the docking seal ring 3, which will not hinder the movement of the outer seal cover body 51. Then the outer seal cover body 51 can be removed to open the oil port at the top of the transformer conservator.

[0043] A transition guiding inclined block 9 is fixedly installed on the side wall of one end of the outer sealing cover body 51 away from the electric push rod 12, and a guiding arc surface 10 is provided at the bottom of the transition guiding inclined block 9.

[0044] The guiding inclined block of the outer sealing cover body 51 can avoid jamming when the electric push rod 12 pushes the outer sealing cover body 51, and the outer sealing cover body 51 can be smoothly pushed above the oil inlet 2 by contacting the guiding arc surface 10 with the oil inlet 2.

[0045] The movable sealing cover 61 is movably matched with the docking sealing ring 3.

[0046] The movable sealing cover 61 and the docking sealing ring 3 have the same size and are made of a material with good sealing performance.

[0047] In the utility model, the movable sealing assembly 6 is movably and sealingly docked and separated from the docking sealing ring 3 of the oil inlet 2, and then the horizontal position is moved through the electric push rod 12, so that the opening and closing of the oil port at the top of the transformer oil conservator are more convenient, the degree of automation is high, and there is no need to store the sealing cover body separately, and the oil injection and oil pumping are more convenient.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A transformer oil storage cabinet top oil port sealing device, characterized in that: It comprises an oil conservator body, an oil inlet is arranged on the top of the oil conservator body, a butt sealing ring is arranged on the inner wall of the oil inlet, two sliding rails are installed on the oil conservator body at both sides of the oil inlet, a sliding sealing mechanism is slidably installed on the sliding rails, an electric push rod is also fixedly installed on the oil conservator body, and an output end of the electric push rod is fixedly connected to the sliding sealing mechanism; The sliding sealing mechanism includes an outer sealing cover body, two connecting arms are installed on the side wall of the outer sealing cover body, a slider is fixedly installed on one end of the connecting arm close to the sliding track, the slider is slidably matched with the sliding track, the outer sealing cover body is movably matched with the oil inlet, a movable positioning block is also fixedly installed on the side wall of the outer sealing cover body, the movable positioning block is fixedly connected to the output end of the electric push rod, a movable positioning groove is opened inside the outer sealing cover body, and a movable sealing assembly is fixedly installed inside the outer sealing cover body.

2. The top oil port sealing device of a transformer oil storage cabinet according to claim 1 is characterized in that: The movable sealing assembly includes a movable sealing cover, which is movably installed inside the movable positioning groove, and two guide columns are fixedly installed on the top of the movable sealing cover, and the two guide columns movably pass through the outer sealing cover body and extend to the top of the outer sealing cover body, and a return spring is installed outside the guide column between the movable sealing cover and the outer sealing cover body, and an upper pressure cover is fixedly installed on the top of the two guide columns, and a handle is fixedly installed on the top of the upper pressure cover.

3. A transformer oil storage cabinet top oil port sealing device according to claim 2, characterized in that: The outer sealing cover body is provided with a limit slide groove, the inner part of the limit slide groove is slidably installed with a limit support block, and the limit support block is movably installed between the upper pressure cover and the outer sealing cover body.

4. A transformer oil conservator top oil port sealing device according to claim 3, characterized in that: A transition guide bevel is fixedly mounted on a side wall of one end of the outer sealing cover away from the electric push rod, and a guiding arc surface is provided at the bottom of the transition guide bevel.

5. The top oil port sealing device of a transformer oil storage cabinet according to claim 4, characterized in that: The movable sealing cover is movably matched with the butt sealing ring.

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