Oil drainage joint of oil-immersed transformer

Abstract

The utility model relates to the technical field of oil-immersed transformers, and discloses an oil drainage joint of an oil-immersed transformer, which comprises a sub-mounting head, the bottom of the inner wall of the sub-mounting head is fixedly connected with a fixing block, the inner wall of the sub-mounting head is fixedly connected with two limiting rails, one side of each limiting rail is fixedly connected with a connecting block, and the other side of each limiting rail is fixedly connected with a connecting rod. The tops of the two connecting blocks penetrate through and are fixedly connected with second nut pairs, the inner rings of the two second nut pairs are in threaded connection with threaded rods, the bottoms of the two threaded rods are fixedly connected with pressing heads, a clamping plate is fixedly connected to the center of the bottom of the inner ring of the sub mounting head, and a groove is formed in the top of the clamping plate; and a female mounting head is arranged at the top of the clamping plate. According to the utility model, through the primary mounting head, the secondary mounting head, the pressing block and the clamping ring, the limiting block is placed in the gap between the limiting rail and the fixed block, and meanwhile, the clamping ring also enters the groove to press the primary mounting head, so that the second spring is shrunk.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil -immersed transformer technical field, specifically is a kind of oil -immersed transformer's oil drain connector. BACKGROUND

[0002] Oil-immersed transformer is a common power transformer, its main feature is to use insulating oil as cooling and insulating medium, this kind of transformer is mainly used in power transmission and distribution system, can effectively reduce the temperature of equipment, improve reliability and service life.

[0003] The existing oil drain connector is generally connected by flange during installation, which is widely applicable and easy to use.

[0004] However, the existing oil drain connector, although convenient to use, when connected with the transformer oil discharge pipeline, the connection between the two is prone to gaps due to improper operation, leading to oil leakage. To solve the above problems, an oil drain connector for oil-immersed transformer is proposed. UTILITY MODEL CONTENTS

[0005] The utility model discloses an oil drain connector for oil-immersed transformer, which solves the problem of oil leakage caused by improper operation at the connection between the flange and the transformer oil discharge pipeline.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an oil drain connector for oil-immersed transformer, comprising a sub-mounting head, a fixed block is fixedly connected to the inner wall bottom of the sub-mounting head, two limiting rails are fixedly connected to the inner wall of the sub-mounting head, a connecting block is fixedly connected to one side of each limiting rail, a second nut pair is fixedly connected to the top of each connecting block, a threaded rod is threadedly connected to the inner ring of each second nut pair, a pressure head is fixedly connected to the bottom of each threaded rod, a clamping plate is fixedly connected to the bottom center of the inner ring of the sub-mounting head, a groove is formed in the top of the clamping plate, a female mounting head is arranged on the top of the clamping plate, a hard pipe is fixedly connected to the top of the female mounting head, a first nut pair is threadedly connected to the outer ring of the hard pipe, a pressure plate is arranged at the bottom of the first nut pair, two limiting blocks are fixedly connected to the outer ring of the female mounting head, a pressure block is slidingly connected to the inner wall of each limiting block, a first spring is arranged between the limiting block and the pressure block, a clamping ring is slidingly connected to the bottom of the female mounting head, a sealing gasket is fixedly connected to the bottom of the clamping ring, and a detection assembly is arranged on the bottom of the clamping plate.

[0007] Through the above technical scheme, the female mounting head is put into the male mounting head, and the snap ring also enters the groove at the same time. The female mounting head is pressed to make the second spring contract. Then the female mounting head is rotated. The limiting block enters below the limiting track and extrudes the pressing block. When the limiting block moves below the connecting block, the force acting on the pressing block disappears, and the first spring rebounds to make the pressing block and the connecting block clamped.

[0008] As a further description of the above technical scheme: the detection assembly comprises a transparent tube, the transparent tube is fixedly connected between the clamping plate, a liquid sensor is arranged on the inner wall of the transparent tube, a scale is arranged on one side of the outer wall of the transparent tube, and an alarm is fixedly connected to the bottom of one side of the outer wall of the transparent tube.

[0009] Through the above technical scheme, the detection assembly can be timely understood when leakage occurs.

[0010] As a further description of the above technical scheme: two protrusions are fixedly connected to the top of the threaded rod.

[0011] Through the above technical scheme, the protrusion facilitates rotation of the threaded rod.

[0012] As a further description of the above technical scheme: a connecting pipe is fixedly connected to the top of the hard pipe.

[0013] Through the above technical scheme, the hard pipe facilitates operation of the female mounting head.

[0014] As a further description of the above technical scheme: a conveying pipe is fixedly connected to the bottom of the clamping plate, and an oil outlet head is fixedly connected to the bottom of the conveying pipe.

[0015] Through the above technical scheme, the oil outlet head is used to discharge oil.

[0016] As a further description of the above technical scheme: second springs are evenly arranged between the snap ring and the female mounting head, and the snap ring is embedded in the groove.

[0017] Through the above technical scheme, the snap ring can be embedded in the groove, and a sealing gasket is arranged therebetween.

[0018] As a further description of the above technical scheme: an electromagnetic valve is fixedly connected to the bottom of the transparent tube, and a discharge pipe is fixedly connected to the bottom of the electromagnetic valve.

[0019] Through the above technical scheme, oil liquid that leaks can be discharged.

[0020] As a further description of the above technical scheme: a control panel is arranged at the center of one side of the outer wall of the transparent tube, and a signal receiver is arranged at the bottom of the control panel.

[0021] By adopting the technical scheme, the control panel can control the alarm to work and then send an alarm sound.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] 1. The oil drain connector of the oil-immersed transformer is provided, the limiting block is placed in the gap between the limiting rail and the fixed block through the female mounting head, the sub mounting head, the pressing block and the snap ring, the snap ring also enters the groove, the female mounting head is pressed, the second spring is contracted, then the female mounting head is rotated, the limiting block enters below the limiting rail, the pressing block is extruded, when the limiting block moves below the connecting block, the force acting on the pressing block disappears, the first spring rebounds, the pressing block is clamped with the connecting block, then the first nut is rotated to drive the pressing plate to move downward, the second spring force makes the snap ring closely contact with the groove, the sealing property is improved, and the oil leakage is reduced.

[0024] 2. The oil drain connector of the oil-immersed transformer is provided, the transparent tube, the liquid sensor, the scale and the alarm are arranged, when leakage occurs, the oil liquid passes through the liquid sensor, the liquid sensor can detect, then the signal receiver receives the signal, the control panel controls the alarm to alarm, and the user is reminded, so that the user can take measures in time, and the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure perspective view of the utility model;

[0026] Figure 2 It is a whole structure explosion view of the utility model;

[0027] Figure 3 It is a sub mounting head structure schematic view of the utility model;

[0028] Figure 4 It is a sub mounting head structure sectional view of the utility model;

[0029] Figure 5 It is a female mounting head structure schematic view of the utility model;

[0030] Figure 6 It is a transparent tube structure schematic view of the utility model.

[0031] In the diagram: 1. Male mounting head; 2. Female mounting head; 3. Conveying pipe; 4. Oil outlet head; 5. Rigid pipe; 6. Connecting pipe; 7. First nut pair; 8. Pressure plate; 9. Limiting block; 10. Pressure block; 11. First spring; 12. Second spring; 13. Snap ring; 14. Sealing gasket; 15. Fixing block; 16. Limiting track; 17. Clamping plate; 18. Groove; 19. Connecting block; 20. Second nut pair; 21. Threaded rod; 22. Protrusion; 23. Pressure head; 24. Transparent tube; 25. Liquid sensor; 26. Scale; 27. Signal receiver; 28. Control panel; 29. ​​Alarm; 30. Discharge pipe; 31. Solenoid valve. Detailed Implementation

[0032] 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.

[0033] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0034] Combination Figure 1 This utility model discloses an oil drain connector for an oil-immersed transformer, comprising a sub-mounting head 1, a fixing block 15 fixedly connected to the bottom of the inner wall of the sub-mounting head 1, two limiting rails 16 fixedly connected to the inner wall of the sub-mounting head 1, a ramp provided at the end below the rails 16 to facilitate the smooth entry of the limiting plate 10 under the rails 16, a connecting block 19 fixedly connected to one side of each of the two limiting rails 16, a protrusion 22 fixedly connected to the top of each of the two threaded rods 21, the protrusions facilitating the rotation of the threaded rods 21, and then causing the pressure head 23 to exert force on the pressure plate, a connecting pipe 6 passing through and fixedly connected to the top of the rigid pipe 5, a conveying pipe 3 passing through and fixedly connected to the bottom of the clamping plate 17, and an oil outlet head 4 passing through and fixedly connected to the bottom of the conveying pipe 3. The rigid pipe 5, the connecting pipe 6, the conveying pipe 3, and the oil outlet head 4 work together to convey oil, and a second spring 12 evenly distributed between the retaining ring 13 and the female mounting head 2 is provided, and the retaining ring 13 is fitted into the groove 18.

[0035] Combination Figure 2 - Figure 5, two connecting blocks 19 top are all through and fixedly connected with the second nut pair 20, the inner ring of two second nut pair 20 is all threadedly connected with threaded rod 21, the bottom of two threaded rods 21 is fixedly connected with pressure head 23, when the threaded rod 21 is rotated by means of the lug 22, the position of pressure head 23 can be adjusted, when fine tuning, the installed can be made more firm by the force of pressure head 23, when the threaded rod 21 is completely entered into the sub mounting head 1, the first spring 11 will be completely retracted, then the female mounting head 2 can be rotated again, the female mounting head 2 top is fixedly connected with the hard tube 5, the hard tube 5 can conveniently operate the female mounting head 2, the outer circle of the hard tube 5 is threadedly connected with the first nut pair 7, the bottom of the first nut pair 7 is provided with the pressing plate 8, the outer circle of the female mounting head 2 is fixedly connected with two limit blocks 9, the limit block 9 is slidably connected with the pressing plate 10, when moving to the lower side of the connecting block 19, the pressing plate 10 is clamped with the connecting block 19 when the force of the first spring 11 disappears, the inner wall of the two limit blocks 9 is slidably connected with the pressing block 10, the first spring 11 is arranged between the limit block 9 and the pressing block 10, when the pressing plate 8 is stressed, the clamping ring 13 is tightly fitted between the clamping ring 13 and the clamping plate 17, the sealing property is increased, the bottom of the female mounting head 2 is through and slidably connected with the clamping ring 13, the bottom of the clamping ring 13 is fixedly connected with the sealing pad 14, the bottom of the clamping plate 17 is provided with a detection assembly.

[0036] In combination Figure 6 The detection assembly includes a transparent tube 24, the transparent tube 24 is fixedly connected between the clamping plate 17, the inner wall of the transparent tube 24 is through and provided with a liquid sensor 25, when leakage occurs, the oil liquid is first left in the groove 18, then when flowing, the liquid sensor 25 is detected, the outer circle of the transparent tube 24 is provided with a scale 26, the outer wall of the transparent tube 24 is fixedly connected with an alarm 29 on one side, when the liquid sensor 25 is detected, the signal receiver 27 is received, the control panel 28 can control the alarm 29 to alarm, the bottom of the transparent tube 24 is through and fixedly connected with a solenoid valve 31, the bottom of the solenoid valve 31 is through and fixedly connected with a discharge pipe 30, the transparent tube 24 can conveniently observe the oil liquid, and can timely leakage, the control panel 28 is arranged at the center position of the outer circle of the transparent tube 24, the bottom of the control panel 28 is provided with a signal receiver 27.

[0037] Working principle: when using the oil drain joint, first put the female mounting head 2 into the male mounting head 1, and the limiting block 9 needs to be in the gap between the limiting rail 16 and the fixed block 15, then the snap ring 13 is also put into the groove 18 for limiting, the lower part of the limiting rail 16 is provided with an inclined angle, when the female mounting head 2 rotates, the pressing block 10 can smoothly enter the lower part of the limiting rail 16, then the pressing block 10 is pressed, the first spring 11 is contracted, when the pressing block 10 moves to the lower part of the connecting block 19, the force of the pressing block 10 disappears, the first spring 11 rebounds, then the pressing block 10 can be clamped with the connecting block 19, and the installation and fixation are carried out, then the convex block 22 can be rotated to drive the threaded rod 21 to move downward by a part, so that the pressing head 23 is pressed on the pressing block 10, and the close-fitting tightness is increased, when the threaded rod 21 is completely moved into the male mounting head 1, the first spring 11 is completely contracted, then the female mounting head 2 is rotated again, and the female mounting head 2 can be taken out, the sealing gasket 14 is arranged between the clamping plate 17 and the snap ring 13, the first nut 7 is rotated, the pressing plate 8 is pushed to move downward, and the second spring 12 is added, so that the snap ring 13 and the groove 18 are tightly fitted, and leakage is prevented, then when leakage occurs, the oil liquid flows into the groove 18 first, when the oil liquid passes through the liquid sensor 25, the liquid sensor 25 detects, then the signal receiver 27 receives the signal, and the control panel 28 can control the alarm 29 to issue an alarm, so that the staff can take timely measures.

[0038] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An oil drain connector for an oil-immersed transformer, comprising a sub-mounted head (1), characterized in that: A fixing block (15) is fixedly connected to the bottom of the inner wall of the sub-mounting head (1). Two limiting rails (16) are fixedly connected to the inner wall of the sub-mounting head (1). A connecting block (19) is fixedly connected to one side of each of the two limiting rails (16). A second nut pair (20) is fixedly connected through and fixedly connected to the top of each of the two connecting blocks (19). A threaded rod (21) is threadedly connected to the inner ring of each of the two second nut pairs (20). A pressure head (23) is fixedly connected to the bottom of each of the two threaded rods (21). A clamping plate (17) is fixedly connected to the center of the bottom of the inner ring of the sub-mounting head (1). A groove (18) is opened on the top of the clamping plate (17). The part is provided with a female mounting head (2), and a rigid tube (5) is connected through and fixedly connected to the top of the female mounting head (2). A first nut pair (7) is threadedly connected to the outer ring of the rigid tube (5). A pressure plate (8) is provided at the bottom of the first nut pair (7). Two limiting blocks (9) are fixedly connected to the outer ring of the female mounting head (2). A pressure block (10) is slidably connected to the inner wall of each of the two limiting blocks (9). A first spring (11) is provided between the limiting block (9) and the pressure block (10). A retaining ring (13) is connected through and slidably connected to the bottom of the female mounting head (2). A sealing gasket (14) is fixedly connected to the bottom of the retaining ring (13). A detection component is provided at the bottom of the retaining plate (17).

2. The oil drain connector of an oil-immersed transformer according to claim 1, characterized in that: The detection assembly includes a transparent tube (24), which passes through and is fixedly connected to the card plate (17). A liquid sensor (25) is provided through the top of the inner wall of the transparent tube (24). A scale (26) is provided on one side of the outer ring of the transparent tube (24). An alarm (29) is fixedly connected to the bottom of one side of the outer wall of the transparent tube (24).

3. The oil drain connector of an oil-immersed transformer according to claim 1, characterized in that: Both of the threaded rods (21) have a protrusion (22) fixedly connected to their tops.

4. The oil drain connector of an oil-immersed transformer according to claim 1, characterized in that: The top of the rigid tube (5) is connected to a connecting tube (6).

5. The oil drain connector of an oil-immersed transformer according to claim 1, characterized in that: The bottom of the card plate (17) is connected to a conveying pipe (3), and the bottom of the conveying pipe (3) is connected to an oil outlet (4).

6. The oil drain connector of an oil-immersed transformer according to claim 1, characterized in that: A second spring (12) is evenly distributed between the retaining ring (13) and the female mounting head (2), and the retaining ring (13) is fitted into the groove (18).

7. The oil drain connector of an oil-immersed transformer according to claim 2, characterized in that: The bottom of the transparent tube (24) is connected to a solenoid valve (31), and the bottom of the solenoid valve (31) is connected to a discharge tube (30).

8. The oil drain connector of an oil-immersed transformer according to claim 2, characterized in that: A control panel (28) is provided at the center of one side of the outer ring of the transparent tube (24), and a signal receiver (27) is provided at the bottom of the control panel (28).

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