Improved on-load tap-changer on-line oil filtering device

Abstract

The utility model relates to the technical field of oil filtering devices, and provides an improved on-load tap-changer on-line oil filtering device which comprises a box body, an oil inlet pipe is fixedly connected to the edge of the outer wall of the box body in an inserted mode, one end of the oil inlet pipe is located on the inner side of the box body, and a first connecting assembly is fixed to one end of the oil inlet pipe. The first connecting assembly comprises a connecting pipe, a telescopic hose, a connecting ring and a limiting rod, the connecting pipe is fixed to one end of the oil inlet pipe, the telescopic hose is fixed to one end of the connecting pipe, the connecting ring is fixed to one end of the telescopic hose, and a connecting rod is fixed to the edge of one side wall of the connecting ring. The filter is connected through the first connecting assembly and the second connecting assembly, the limiting rod is rotated to enable the first external thread to move out of the inner side of the threaded hole, and then the limiting rod can be pulled to drive the inserting pipe to move out of the inner side of the liquid inlet pipe, so that the filter is quickly disassembled, and the filter can be quickly installed through the elastic force of the spring; and the filter is convenient to clean or replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil filter device technical field, concretely is a kind of improved on-load tap changer online oil filter device. BACKGROUND

[0002] On-load tap changer online oil filter is the product developed to solve the problem that on-load tap changer is switched in oil chamber, and insulation oil is easily decomposed, aged and generates a large amount of free carbon and metal debris due to arc effect, which causes insulation oil breakdown voltage to decrease and dielectric performance to deteriorate. It is mainly used for filtering insulation oil of on-load tap changer of transformer.

[0003] At present, the filter inside the existing online oil filter device will remain a large amount of impurities after being used for a period of time, and needs to be cleaned regularly. The existing online oil filter device is very troublesome to disassemble, and a lot of time is needed, which is not conducive to regular cleaning or replacement of the filter.

[0004] Therefore, an improved on-load tap changer online oil filter device capable of conveniently disassembling and assembling the filter is needed. SUMMARY

[0005] To solve the above problems, the utility model provides an improved on-load tap changer online oil filter device, which has the characteristics of convenient disassembly and assembly, and can quickly complete the installation and disassembly of the filter.

[0006] To achieve the above purpose, the utility model provides the following specific solutions:

[0007] The utility model provides an improved on -line oil filter device of load tap changer, including the box, the box outer wall side part fixedly inserts the oil inlet pipe, and the oil inlet pipe one end is located the inboard of box, and the oil inlet pipe one end is fixed with first connecting component, and first connecting component includes connecting pipe, telescopic hose, connecting ring and spacing rod, and the connecting pipe is fixed in the oil inlet pipe one end, and the connecting pipe one end is fixed with telescopic hose, and the telescopic hose one end is fixed with connecting ring, and the connecting ring one side wall side part is fixed with connecting rod, and the connecting rod is located the telescopic hose top, and the connecting pipe other end outer wall is fixed with fixed plate, and the fixed plate side wall is equipped with through -hole, and the connecting rod passes through through -hole, and the connecting ring edge part is equipped with rotary hole, and the rotary hole inboard movably inserts spacing rod, and the spacing rod is located the telescopic hose below, and the spacing rod one end outer wall is fixed with first external thread, and the connecting pipe outer wall is fixed with fixed block, and the fixed block side wall is equipped with threaded hole, and the spacing rod is screwed in the threaded hole inboard, and the connecting ring other side wall is fixed with the insertion pipe, and the insertion pipe outside movably inserts filter, and the filter one side wall edge part is fixed with the liquid outlet pipe, and the liquid outlet pipe inboard movably inserts second connecting component, and second connecting component with first connecting component same structure, and second connecting component with first connecting component symmetry sets up, and the box edge part is hinged with the box door.

[0008] As an improved on -line oil filter device of load tap changer of the utility model preferred technical scheme, the box outer wall other side part fixedly inserts the oil outlet elbow, and the oil outlet elbow one end is located the inboard of box, and the oil outlet elbow one end is fixed with oil pump, and the oil pump bottom surface middle part is fixed with the flow guide elbow, and the flow guide elbow one end is fixed with second connecting component, and the box one side inner wall is fixed with the controller.

[0009] As an improved on -line oil filter device of load tap changer of the utility model preferred technical scheme, the connecting rod outside movably sheathed spring, and the spring one end is fixed on the connecting ring side wall, and the spring other end is fixed on the fixed plate side wall, and the connecting rod one end is fixed with baffle.

[0010] As an improved on -line oil filter device of load tap changer of the utility model preferred technical scheme, the spacing rod other end is fixed with rotary column, and the rotary column movably inserts in the rotary hole inboard, and the rotary column one end is fixed with spacing disc, and the spacing disc is located the connecting ring one side.

[0011] As an improved on -line oil filter device of load tap changer of the utility model preferred technical scheme, the spacing rod outer wall is fixed with second external thread, and the second external thread is located first external thread one side.

[0012] As an improved on-line oil filter device for load tap changer of the utility model, one end of the plug-in pipe is fixedly sleeved with a sealing ring, the sealing ring is fixedly connected with the connecting ring, the sealing ring is closely attached to the liquid inlet pipe, and the sealing ring is made of flexible material.

[0013] As an improved on-line oil filter device for load tap changer of the utility model, one end of the plug-in pipe is fixedly sleeved with a sealing ring, the sealing ring is fixedly connected with the connecting ring, the sealing ring is closely attached to the liquid inlet pipe, and the sealing ring is made of flexible material.

[0014] As an improved on-line oil filter device for load tap changer of the utility model, the oil pump is fixedly sleeved with a fixing ring on the outer wall, the fixing ring is fixedly provided with a fixing column on the outer wall, and one end of the fixing column is fixed to the inner wall of the box body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The filter is connected with the first connecting assembly through the liquid inlet pipe and connected with the second connecting assembly through the liquid outlet pipe, the first connecting assembly and the second connecting assembly are the same in structure and operation mode, the first external thread on the outer wall of the limiting rod is separated from the threaded hole by rotating the limiting rod, the spring is compressed by pulling the limiting rod, the telescopic hose is contracted, the plug-in pipe is driven to move out of the inner side of the liquid inlet pipe, then the limiting rod is screw-connected to the inner side of the threaded hole by rotating the limiting rod again, the plug-in pipe is prevented from being inserted into the inner side of the liquid inlet pipe by the spring, the second connecting assembly is separated from the liquid outlet pipe in the same way, and then the filter can be disassembled, when installing, the filter is placed back to the original position, the second external thread is moved out of the inner side of the threaded hole by rotating the limiting rod, the plug-in pipe is inserted into the inner side of the liquid inlet pipe under the elastic pushing of the spring, the limiting rod is screw-connected to the threaded hole through the first external thread by rotating the limiting rod again, the second connecting assembly is operated in the same way, and then the installation of the filter is completed, the quick disassembly and assembly operation of the filter is realized, and the regular cleaning or replacement of the filter is greatly facilitated. ACCURACY OF DRAWINGS

[0017] In order to better describe the technical scheme of the utility model, the application will be further described in combination with the drawings and examples.

[0018] Figure 1 is the overall structure perspective view provided by the utility model;

[0019] Figure 2 is the sectional view of the utility model;

[0020] Figure 3 is the perspective view of the first connecting assembly of the utility model;

[0021] Figure 4For the utility model Figure 2 The enlarged schematic view of the position A in the middle;

[0022] Figure 5 For the utility model Figure 2 The enlarged schematic view of the position B in the middle.

[0023] In the figure: 1, box body; 11, box door; 12, controller; 13, oil inlet pipe; 14, oil outlet elbow; 15, oil pump; 151, fixed ring; 152, fixed column; 16, flow guide elbow; 2, first connecting assembly; 21, connecting pipe; 211, fixed plate; 212, through hole; 213, fixed block; 214, screw hole; 22, flexible hose; 23, connecting ring; 231, plug-in pipe; 232, sealing ring; 233, connecting rod; 234, spring; 235, rotating hole; 236, baffle; 24, limiting rod; 241, first external thread; 242, second external thread; 243, rotating column; 244, limiting disc; 3, filter; 31, liquid inlet pipe; 32, liquid outlet pipe; 4, second connecting assembly. Specific implementation

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment

[0025] Please refer to Figures 1-5 The utility model provides the following technical scheme: an improved on-line oil filter device of load tap changer, comprising a box body 1, the box body 1 side is hinged with box door 11, the box door 11 can close the box body 1, the internal structure is protected, and the box door 11 belongs to the more common prior art, therefore, too much repetition is not carried out here.

[0026] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 5As shown, specifically, the outer wall of the box 1 is fixedly inserted with an oil inlet pipe 13 for conveying oil for filtering. One end of the oil inlet pipe 13 is located inside the box 1. One end of the oil inlet pipe 13 is fixedly connected with a first connecting assembly 2 for connecting a filter 3. The first connecting assembly 2 comprises a connecting pipe 21, an elastic hose 22, a connecting ring 23 and a limiting rod 24. The connecting pipe 21 is fixedly connected with one end of the oil inlet pipe 13. The connecting pipe 21 can guide the oil and fix the elastic hose 22. One end of the connecting pipe 21 is fixedly connected with the elastic hose 22. The elastic hose 22 can be stretched and contracted to facilitate the movement of a plug-in pipe 231. One end of the elastic hose 22 is fixedly connected with the connecting ring 23 for fixing the plug-in pipe 231. The other side wall of the connecting ring 23 is fixedly connected with the plug-in pipe 231 for guiding the oil inside the liquid inlet pipe 31. The outer side of the plug-in pipe 231 is movably inserted with the filter 3 (the filter 3 is prior art. The specific operation mode and principle can refer to the oil filter in the prior art for filtering impurities in the oil. Therefore, it is not described in detail here). One side wall of the filter 3 is fixedly connected with a liquid outlet pipe 32 for guiding the filtered oil. The other side wall of the filter 3 is fixedly connected with a liquid inlet pipe 31 for guiding the oil into the filter 3. The plug-in pipe 231 is movably inserted inside the liquid inlet pipe 31. One end of the plug-in pipe 231 is fixedly connected with a sealing ring 232 outside the wall for preventing oil leakage. The sealing ring 232 is fixedly connected with the connecting ring 23. The sealing ring 232 is tightly attached to the liquid inlet pipe 31. The sealing ring 232 is made of flexible material. The liquid outlet pipe 32 is movably inserted with a second connecting assembly 4 inside for installing and dismounting the filter 3. The second connecting assembly 4 is the same as the first connecting assembly 2. The second connecting assembly 4 is symmetrically arranged with the first connecting assembly 2. The other side of the outer wall of the box 1 is fixedly inserted with an oil outlet elbow pipe 14 for guiding the oil to be used by external equipment. One end of the oil outlet elbow pipe 14 is located inside the box 1. One end of the oil outlet elbow pipe 14 is fixedly connected with an oil pump 15 (the oil pump 15 is prior art. The specific operation mode and principle can refer to the electric oil pump in the prior art. The controller 12 is used to control the opening and closing. Therefore, it is not described in detail here). The outer wall of the oil pump 15 is fixedly connected with a fixing ring 151 for reinforcing the oil pump 15. The outer wall of the fixing ring 151 is fixedly connected with a fixing column 152 for supporting the fixing ring 151. One end of the fixing column 152 is fixedly connected with the inner wall of the box 1. The bottom surface of the oil pump 15 is fixedly connected with a flow guide elbow pipe 16 for conveying the oil into the oil outlet elbow pipe 14. One end of the flow guide elbow pipe 16 is fixedly connected with the second connecting assembly 4. One side of the inner wall of the box 1 is fixedly connected with a controller 12 (the controller 12 is prior art. The specific operation mode and principle can refer to the microprogram controller in the prior art. The controller 12 can control the oil pump 15. Therefore, it is not described in detail here).Facilitate the regular cleaning or replacement of the filter 3 after damage.

[0027] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 With Figure 5 Specifically, the connecting ring 23 is fixed with a connecting rod 233 on one side wall edge, which is used to prevent the spring 234 from bending and ensure the stability of the connecting ring 23. The connecting rod 233 is located above the flexible hose 22. The other end of the connecting pipe 21 is fixed with a fixed plate 211, which is used to set a through hole 212. The side wall of the fixed plate 211 is provided with a through hole 212. The connecting rod 233 can move inside the through hole 212. The connecting rod 233 penetrates the through hole 212. The outer side of the connecting rod 233 is movably sleeved with a spring 234. The spring 234 uses elastic pushing force to push the plug-in pipe 231 to move. One end of the spring 234 is fixed on the side wall of the connecting ring 23. The other end of the spring 234 is fixed on the side wall of the fixed plate 211. One end of the connecting rod 233 is fixed with a baffle 236 to prevent the connecting rod 233 from moving out of the inside of the through hole 212. The scheme can automatically insert the plug-in pipe 231 into the inside of the liquid inlet pipe 31 by the spring 234 when the filter 3 is installed. The installation of the filter 3 is quickly completed, and the installation speed is improved.

[0028] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 With Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5As shown, specifically, the connecting ring 23 is provided with a rotating hole 235 for connecting and rotating the rotating column 243, the rotating hole 235 is movably inserted with a limiting rod 24, the movement of the connecting ring 23 can be limited, thereby limiting the movement of the inserting pipe 231, the limiting rod 24 is located below the flexible hose 22, the outer wall of one end of the limiting rod 24 is fixed with a first external thread 241, which is used for limiting the inserting pipe 231 when the inserting pipe 231 is inserted into the inner side of the liquid pipe 31, the outer wall of the connecting pipe 21 is fixed with a fixed block 213, which is used for setting a threaded hole 214, the side wall of the fixed block 213 is provided with a threaded hole 214, which is used for being screwed with the first external thread 241 or the second external thread 242, the limiting rod 24 is screwed in the inner side of the threaded hole 214, the other end of the limiting rod 24 is fixed with the rotating column 243, so that the rotation of the limiting rod 24 does not drive the connecting ring 23 to rotate, the rotating column 243 is movably inserted in the inner side of the rotating hole 235, one end of the rotating column 243 is fixed with a limiting disc 244, which prevents the rotating column 243 from being separated from the inner side of the rotating hole 235, the limiting disc 244 is located on one side of the connecting ring 23, the outer wall of the limiting rod 24 is fixed with the second external thread 242, which is used for limiting the inserting pipe 231 when the inserting pipe 231 is moved out of the inner side of the liquid pipe 31, the second external thread 242 is located on one side of the first external thread 241, when the limiting rod 24 is screwed in the inner side of the threaded hole 214 through the first external thread 241, the inserting pipe 231 cannot move in the inner side of the liquid pipe 31, thereby ensuring the reliable connection of the filter 3, when the limiting rod 24 is screwed with the threaded hole 214 through the second external thread 242, the inserting pipe 231 cannot be inserted into the inner side of the liquid pipe 31 under the pushing of the spring 234, thereby not hindering the disassembly of the filter 3, the threaded connection is simple and reliable, and greatly facilitates the disassembly, cleaning or replacement of the filter 3.

[0029] The working principle and use process of the utility model are as follows:

[0030] In use, the controller 12 controls the oil pump 15 to start, the oil pump 15 generates suction, and oil is transported through the oil inlet pipe 13 to the inside of the connecting pipe 21, guided through the flexible hose 22, the connecting ring 23 and the insertion pipe 231, enters the filter 3 from the liquid inlet pipe 31, and after the oil is filtered by the filter 3, flows out of the filter 3 from the liquid outlet pipe 32, is transported to the inside of the guide elbow 16 through the second connecting assembly 4, and then is transported to the inside of the oil outlet elbow 14 through the oil pump 15, and flows out of the inside of the box 1 through the oil outlet elbow 14. When the filter 3 needs to be cleaned or replaced, the first external thread 241 is moved out of the inside of the threaded hole 214 by rotating the limiting rod 24, the limiting rod 24 is pulled, the connecting ring 23 is moved, the spring 234 is compressed, the flexible hose 22 is retracted, and the insertion pipe 231 is moved out of the inside of the liquid inlet pipe 31. Then the limiting rod 24 is fixed in the inside of the threaded hole 214 by rotating the limiting rod 24 through the second external thread 242, the position of the insertion pipe 231 is fixed, the second connecting assembly 4 is separated from the liquid outlet pipe 32 by using the same method, and the filter 3 can be disassembled. After cleaning or replacing a new filter 3, the filter 3 is placed back in place, the second external thread 242 is separated from the threaded hole 214 by rotating the limiting rod 24, the flexible hose 22 is elongated under the elastic pushing of the spring 234, the insertion pipe 231 is inserted into the inside of the liquid inlet pipe 31, and then the limiting rod 24 is screwed and connected with the threaded hole 214 through the first external thread 241, so that the insertion pipe 231 is firmly inserted into the inside of the liquid inlet pipe 31. The end of the liquid inlet pipe 31 is tightly attached to the sealing ring 232 to ensure that there is no oil leakage. The second connecting assembly 4 is connected with the liquid outlet pipe 32 by using the same operation, and the installation of the filter 3 is completed.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An improved on-line oil filter device for load tap changer, comprising a box (1), characterized in that: The outer wall side of the box (1) is fixedly inserted with an oil inlet pipe (13), one end of the oil inlet pipe (13) is located inside the box (1), one end of the oil inlet pipe (13) is fixedly connected with a first connecting assembly (2), the first connecting assembly (2) comprises a connecting pipe (21), an elastic hose (22), a connecting ring (23) and a limiting rod (24), one end of the connecting pipe (21) is fixedly connected with the oil inlet pipe (13), one end of the connecting pipe (21) is fixedly connected with the elastic hose (22), one end of the elastic hose (22) is fixedly connected with the connecting ring (23), one side wall of the connecting ring (23) is fixedly connected with a connecting rod (233), the connecting rod (233) is located above the elastic hose (22), the other end of the connecting pipe (21) is fixedly connected with a fixed plate (211), the fixed plate (211) is provided with a through hole (212) in the side wall, the connecting rod (233) penetrates through the through hole (212), the side of the connecting ring (23) is provided with a rotating hole (235), the rotating hole (235) is movably inserted with the limiting rod (24) on the inner side, the limiting rod (24) is located below the elastic hose (22), one end of the limiting rod (24) is fixedly connected with a first external thread (241) on the outer wall, the connecting pipe (21) is fixedly connected with a fixed block (213) on the outer wall, the fixed block (213) is provided with a threaded hole (214) in the side wall, the limiting rod (24) is screw-connected in the threaded hole (214) on the inner side, the other side wall of the connecting ring (23) is fixedly connected with a plug-in pipe (231), the plug-in pipe (231) is movably inserted with a filter (3) on the outer side, one side wall of the filter (3) is fixedly connected with a liquid outlet pipe (32), the liquid outlet pipe (32) is movably inserted with a second connecting assembly (4) on the inner side, the second connecting assembly (4) is the same as the first connecting assembly (2) in structure, the second connecting assembly (4) is symmetrically arranged with the first connecting assembly (2), the side of the box (1) is hingedly connected with a box door (11).

2. The improved on-line oil filter device for load tap changer according to claim 1, characterized in that: The other side wall of the box (1) is fixedly inserted with an oil outlet elbow (14), one end of the oil outlet elbow (14) is located inside the box (1), one end of the oil outlet elbow (14) is fixedly connected with an oil pump (15), the bottom surface of the oil pump (15) is fixedly connected with a flow guide elbow (16), one end of the flow guide elbow (16) is fixedly connected with the second connecting assembly (4), one side inner wall of the box (1) is fixedly connected with a controller (12).

3. The improved on-line oil filter device for load tap changer according to claim 2, characterized in that: The outer side of the connecting rod (233) is movably sleeved with a spring (234), one end of the spring (234) is fixedly connected with the side wall of the connecting ring (23), the other end of the spring (234) is fixedly connected with the side wall of the fixed plate (211), one end of the connecting rod (233) is fixedly connected with a baffle (236).

4. The improved on-line oil filter device for load tap changer according to claim 3, characterized in that: The other end of the limiting rod (24) is fixedly connected with a rotating column (243), the rotating column (243) is movably inserted in the rotating hole (235) on the inner side, one end of the rotating column (243) is fixedly connected with a limiting disc (244), the limiting disc (244) is located on one side of the connecting ring (23).

5. The improved on-line oil filter device for load tap changer according to claim 4, characterized in that: The outer wall of the limiting rod (24) is fixed with a second external thread (242), which is located on one side of the first external thread (241).

6. The improved on-line oil filter device for load tap changer according to claim 5, characterized in that: The other side wall of the filter (3) is fixed with a liquid inlet pipe (31), and the plug-in pipe (231) is movably plugged into the inner side of the liquid inlet pipe (31).

7. The improved on-line oil filter device for load tap changer according to claim 6, characterized in that: The outer wall of one end of the plug-in pipe (231) is fixed with a sealing ring (232), which is fixedly connected with the connecting ring (23). The sealing ring (232) is tightly combined with the liquid inlet pipe (31), and the sealing ring (232) is made of flexible material.

8. The improved on-line oil filter device for load tap changer according to claim 7, characterized in that: The outer wall of the oil pump (15) is fixed with a fixed ring (151), the outer wall of the fixed ring (151) is fixed with a fixed column (152), and one end of the fixed column (152) is fixed on the inner wall of the box body (1).

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