Oil drainage head connecting assembly of transformer

Abstract

The utility model belongs to the technical field of transformer accessories, and particularly relates to an oil drain head connecting assembly of a transformer, which comprises an oil drain valve oil outlet pipe and a butt joint, and further comprises a first flange, a second flange and a third flange, the second flange is fixedly installed at the left end of the butt joint, a sealing ring is fixedly installed on the left side of the second flange, and the left side of the sealing ring makes contact with the right side of the first flange; the left end of the external oil pipe is fixedly arranged at the right end of the butt joint in a sleeving manner; according to the quick disassembly and assembly tool, quick disassembly and assembly between the oil outlet pipe of the oil drain valve and the butt joint are achieved through a simple structure, the quick disassembly and assembly tool can be suitable for oil drain head connecting pieces of different models through plane butt joint between the first flange and the second flange, butt joints of multiple models do not need to be carried for use, operation is convenient, time and labor are saved, and the working efficiency is improved. The practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer accessory technology field especially, relates to a transformer's oil drain head connecting assembly. BACKGROUND

[0002] The oil drain head (also called oil valve, oil drain valve) of the transformer is an important component on the oil tank of the transformer, and is mainly used for discharging transformer oil, especially when the transformer is overhauled, maintained, replaced with transformer oil or cleaned inside, the oil drain head is used for discharging the oil in the transformer to the outside.

[0003] In the prior art, the transformer is different according to actual installation condition, and the production manufacturers are different, the model is not same, the flange aperture size of the oil drain valve is different, the screw hole center distance is also not same, when carrying out the oil filling and discharging work, the external flange connected with the valve port does not have unified size, and multiple models of external flanges need to be prepared. Because of the diversity of the external flange, the oil outlet pipe aperture is different, so multiple oil pipes suitable for different diameters and different models need to be prepared at the same time when actually filling and discharging oil. This leads to the disadvantages of inconvenient operation, easy oil leakage, heavy workload and low efficiency in the whole operation process, and therefore, the oil drain head connecting assembly of the transformer is proposed to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of oil drain head connecting assemblies of transformer, including oil drain valve oil outlet pipe and butt joint, the connecting assembly further includes:

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An oil drain head connecting assembly of a transformer includes an oil drain valve oil outlet pipe and a butt joint. The connecting assembly further includes:

[0007] A first flange is fixedly installed at the right end of the oil drain valve oil outlet pipe.

[0008] A second flange is fixedly installed at the left end of the butt joint. A sealing ring is fixedly installed at the left side of the second flange. The left side of the sealing ring is in contact with the right side of the first flange.

[0009] The outer oil pipe is fixedly sleeved at the right end of the butt joint;

[0010] The knob is sleeved on the oil drain valve oil outlet pipe, and threaded grooves are formed on the outer side of the oil drain valve oil outlet pipe and the inner wall of the knob.

[0011] The clamping assembly is arranged on the right side of the knob.

[0012] As a preferred scheme of the utility model, a plurality of anti-skid protrusions are fixedly installed on the knob in a ring shape and at equal intervals.

[0013] As a preferred scheme of the utility model, the clamping assembly comprises a sliding rod, a clamping rod, an L-shaped baffle, a spring, a blocking shaft, a supporting rod and a rotating rod.

[0014] As a preferred scheme of the utility model, a ring-shaped groove is formed in the right side of the knob, and the left end of the sliding rod is slidably connected in the ring-shaped groove.

[0015] As a preferred scheme of the utility model, a sliding ring is fixedly installed on the top and the bottom of the first flange, and the sliding ring is slidably sleeved on the corresponding sliding rod.

[0016] As a preferred scheme of the utility model, a sliding hole is formed in the rotating rod, and the front end of the blocking shaft penetrates through the sliding hole and is slidably connected with the inner wall of the sliding hole.

[0017] Advantages:

[0018] 1. The first flange and the second flange are butted, and a sealing ring is further arranged, so that the oil drain valve oil outlet pipe and the butt joint can be connected and sealed.

[0019] 2. The clamping assembly is arranged, so that the oil drain valve oil outlet pipe and the butt joint can be quickly disassembled and assembled, and the transformer can be easily drained and filled with oil.

[0020] The utility model discloses a simple structure realizes the quick dismounting between the oil drain valve oil outlet pipe and the joint, and through the plane butt joint between the first flange and the second flange, can adapt to different models of oil drain head connecting piece and use, need not carry more models of joint and use, and convenient operation, save time and effort, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure three-dimensional view of the utility model;

[0022] Figure 2 It is the structure three-dimensional view of the oil drain valve oil outlet pipe, first flange, thread groove, knob, anti -skid boss, annular groove, sliding rod, sliding ring, clamping rod and rotating rod of the utility model;

[0023] Figure 3 It is the structure three-dimensional view of the external oil pipe, joint, second flange and sealing ring of the utility model;

[0024] Figure 4 It is the structure three-dimensional view of the sliding rod, sliding ring, clamping rod, L type baffle, spring, blocking axle, support rod, rotating rod and sliding hole of the utility model.

[0025] In the drawing: 1, oil drain valve oil outlet pipe;2, first flange;3, external oil pipe;4, joint;5, second flange;6, sealing ring;7, thread groove;8, knob;9, anti -skid boss;10, annular groove;11, sliding rod;12, sliding ring;13, clamping rod;14, L type baffle;15, spring;16, blocking axle;17, support rod;18, rotating rod;19, sliding hole. DETAILED DESCRIPTION

[0026] The technical scheme 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, and apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.

[0027] EMBODIMENT

[0028] REFERENCE Figures 1-4 An oil drain head connecting assembly of a transformer, comprising an oil drain valve oil outlet pipe 1 and a joint 4, the connecting assembly further comprising:

[0029] A first flange 2 is fixedly installed at the right end of the oil drain valve oil outlet pipe 1;

[0030] A second flange 5 is fixedly installed at the left end of the joint 4, and a sealing ring 6 is fixedly installed at the left side of the second flange 5, and the left side of the sealing ring 6 is in contact with the right side of the first flange 2;

[0031] The outer oil pipe 3 is fixedly sleeved at the right end of the butt joint 4;

[0032] The knob 8 is sleeved on the oil drain valve oil outlet pipe 1, and the outer side of the oil drain valve oil outlet pipe 1 and the inner wall of the knob 8 are both provided with a threaded groove 7, and the two threaded grooves 7 are threadedly connected.

[0033] The clamping assembly is provided with two, and the two clamping assemblies are both arranged on the right side of the knob 8 and are both clamped with the second flange 5.

[0034] Through the butt joint between the first flange 2 and the second flange 5 and the cooperation of the sealing ring 6, the connection and sealing between the oil drain valve oil outlet pipe 1 and the butt joint 4 can be facilitated, and the internal part of the transformer can be conveniently drained.

[0035] As a preferred scheme of the utility model, a plurality of anti-skid protrusions 9 are fixedly installed on the knob 8 in an annular and equidistant manner, and the anti-skid protrusions 9 can facilitate personnel to rotate the knob 8.

[0036] As a preferred embodiment of this utility model, the clamping assembly includes a slide rod 11, a clamping rod 13, an L-shaped baffle 14, a spring 15, a stop shaft 16, a support rod 17, and a rotating rod 18. The left end of the slide rod 11 is slidably connected to the right side of the knob 8. One end of the clamping rod 13 passes through the slide rod 11 and is slidably connected to it. The left side of the clamping rod 13 contacts the right side of the second flange 5. The L-shaped baffle 14 is fixedly installed on the other end of the clamping rod 13. The spring 15 is sleeved on the clamping rod 13, and both ends of the spring 15 are fixedly installed on the L-shaped baffle 14 and the slide rod 11, respectively. The rear end of the stop shaft 16 is fixedly installed on the front side of the L-shaped baffle 14. One end of the support rod 17 is fixedly installed on the slide rod 11. The rotating rod 18 is rotatably connected to the other end of the support rod 17 and is slidably sleeved on the stop shaft 16. By rotating the knob 8 and through the sliding limit cooperation between the knob 8 and the slide rod 11, the slide rod 11 can be moved to the left. At this time, the slide rod 11 can drive the clamping rod. Move 13 to the left and squeeze the second flange 5 and the first flange 2 together. At the same time, the sealing ring 6 will also be squeezed. This will allow the installation and fixation between the oil outlet pipe 1 of the drain valve and the connector 4. Then, by rotating the knob 8 in the opposite direction, the slide rod 11 and the locking rod 13 can be moved to the right and the squeezing of the locking rod 13 between the second flange 5 and the first flange 2 can be released. At the same time, press the left ends of the two rotating rods 18 to the side that are close to each other. This will allow the rotating rods 18 to rotate and, through the sliding limit cooperation between the stop shaft 16 and the rotating rod 18, will drive the two L-shaped baffles 14 to move away from each other. At this time, the two locking rods 13 will also move away from each other. When the two locking rods 13 move away from each other, the limit of the second flange 5 moving to the right can be released, thereby enabling the disassembly of the second flange 5 and the first flange 2. This method can achieve quick disassembly and assembly between the oil outlet pipe 1 of the drain valve and the connector 4, which is convenient for personnel to drain and inject oil into the transformer.

[0037] As a preferred embodiment of this utility model, an annular groove 10 is provided on the right side of the knob 8, and the left end of the slide rod 11 is slidably connected in the annular groove 10. Through the sliding limit cooperation between the slide rod 11 and the annular groove 10, the knob 8 and the slide rod 11 can be easily connected and transmitted.

[0038] As a preferred embodiment of this utility model, a slip ring 12 is fixedly installed on the top and bottom of the first flange 2. The slip ring 12 is slidably sleeved on the corresponding slide rod 11. By setting the slip ring 12, the slide rod 11 can be stably limited in sliding.

[0039] As a preferred embodiment of this utility model, the rotating rod 18 is provided with a sliding hole 19, and the front end of the stop shaft 16 passes through the sliding hole 19 and is slidably connected to the inner wall of the sliding hole 19. By providing a sliding limit fit between the sliding hole 19 and the stop shaft 16, the rotating rod 18 can easily drive the L-shaped baffle 14 and the locking rod 13 to move up and down.

[0040] The working principle of the utility model is: in use, first, through the butt joint between the first flange 2 and the second flange 5, then cooperate with the sealing ring 6, can be convenient for the connection sealing between the oil drain valve oil outlet pipe 1 and the adapter 4, at this time, through the rotation knob 8 and through the sliding limit cooperation between the knob 8 and the slide rod 11, can drive the slide rod 11 to move to the left side, at this time, the slide rod 11 can drive the clamping rod 13 to move to the left side and extrude between the second flange 5 and the first flange 2, at the same time, the sealing ring 6 will also be extruded, at this time, can realize the installation and fixation between the oil drain valve oil outlet pipe 1 and the adapter 4, then through the reverse rotation knob 8, can drive the slide rod 11 and the clamping rod 13 to move to the right side and remove the extrusion of the clamping rod 13 between the second flange 5 and the first flange 2, at this time, press the left end of the two rotating rods 18 to the side of mutual approach, can make the rotating rod 18 rotate and through the sliding limit cooperation between the blocking shaft 16 and the rotating rod 18, can drive the two L-shaped baffles 14 to move away from each other, at this time, the two clamping rods 13 will also move away from each other, when the two clamping rods 13 move away from each other, can remove the limit of the second flange 5 to the right side, so as to realize the disassembly between the second flange 5 and the first flange 2, here, through the above-mentioned mode, can realize the quick disassembly between the oil drain valve oil outlet pipe 1 and the adapter 4, convenient for personnel to drain and inject oil for the transformer.

[0041] The above, only for the preferable specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A drain valve connection assembly for a transformer, comprising a drain valve outlet pipe (1) and a connector (4), characterized in that, The connectivity component also includes: The first flange (2) is fixedly installed at the right end of the oil outlet pipe (1) of the drain valve; The second flange (5) is fixedly installed on the left end of the butt joint (4). A sealing ring (6) is fixedly installed on the left side of the second flange (5). The left side of the sealing ring (6) is in contact with the right side of the first flange (2). An external oil pipe (3) is fixedly sleeved on the right end of a connector (4); Knob (8), the knob (8) is sleeved on the oil outlet pipe (1) of the oil drain valve, and threaded grooves (7) are provided on the outer side of the oil outlet pipe (1) and the inner wall of the knob (8), and the two threaded grooves (7) are threadedly engaged. The clamping assembly is provided in two parts, both of which are located on the right side of the knob (8) and are clamped to the second flange (5).

2. The transformer drain connection assembly according to claim 1, characterized in that, Multiple anti-slip protrusions (9) are fixedly installed on the knob (8) at equal intervals in a ring.

3. The transformer drain connection assembly according to claim 1, characterized in that, The mounting assembly includes a slide rod (11), a locking rod (13), an L-shaped baffle (14), a spring (15), a stop shaft (16), a support rod (17), and a rotating rod (18). The left end of the slide rod (11) is slidably connected to the right side of the knob (8). One end of the locking rod (13) passes through the slide rod (11) and is slidably connected to the slide rod (11). The left side of the locking rod (13) contacts the right side of the second flange (5). The L-shaped baffle (14) is fixedly installed on the locking rod. At the other end of the rod (13), the spring (15) is sleeved on the clamp rod (13). The two ends of the spring (15) are fixedly installed on the L-shaped baffle (14) and the slide rod (11) respectively. The rear end of the stop shaft (16) is fixedly installed on the front side of the L-shaped baffle (14). One end of the support rod (17) is fixedly installed on the slide rod (11). The rotating rod (18) is rotatably connected to the other end of the support rod (17). The rotating rod (18) is slidably sleeved on the stop shaft (16).

4. The transformer drain connection assembly according to claim 3, characterized in that, The knob (8) has an annular groove (10) on its right side, and the left end of the slide rod (11) is slidably connected in the annular groove (10).

5. The transformer drain connection assembly according to claim 3, characterized in that, The first flange (2) is fixedly installed with slip rings (12) at both the top and bottom, and the slip rings (12) are slidably sleeved on the corresponding slide rods (11).

6. The transformer drain connection assembly according to claim 3, characterized in that, The rotating rod (18) has a sliding hole (19), and the front end of the stop shaft (16) passes through the sliding hole (19) and is slidably connected to the inner wall of the sliding hole (19).

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