CN217108675U - Disassembly-free mounting joint for oil taking port of transformer - Google Patents
Disassembly-free mounting joint for oil taking port of transformer Download PDFInfo
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- CN217108675U CN217108675U CN202220634552.8U CN202220634552U CN217108675U CN 217108675 U CN217108675 U CN 217108675U CN 202220634552 U CN202220634552 U CN 202220634552U CN 217108675 U CN217108675 U CN 217108675U
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Abstract
The utility model discloses a exempt from to dismantle attach fitting for hydraulic fluid port is got to transformer relates to transformer technical field, include: the valve core joint, the pressure ring joint and the locking nut; an internal thread is arranged on the inner side of the compression ring joint, an external thread is arranged on the outer side of the compression ring joint, and the compression ring joint is connected with the body joint through the internal thread; the valve core joint comprises an automatic locking part and a connecting part, the automatic locking part is of a step structure, the end part of the automatic locking part is connected with the body joint, and a convex block for installing a locking nut is arranged on the outer side of the automatic locking part; the inside of self-locking portion sets up first through-hole, and the inside of connecting portion sets up the second through-hole of being connected with the three-way valve, sets up the third through-hole between first through-hole and the second through-hole, and the diameter of third through-hole is less than the diameter of first through-hole, and first through-hole is inside to set up steel ball, spring and pressure spring nut. The valve core joint of the utility model is not detached after being connected with the joint of the transformer body, thereby preventing the oil injection and oil leakage; the operation is convenient.
Description
Technical Field
The utility model relates to a transformer technical field, concretely relates to exempt from to dismantle installation joint for hydraulic fluid port is got to transformer.
Background
The transformer oil has the functions of insulation, heat dissipation, arc extinction and the like. In the routine maintenance of oil-immersed transformer, need often to get oil sample operation to oil-immersed transformer to carry out multiple experiment to transformer oil, whether analysis transformer oil is qualified, whether each item index of detecting transformer oil is normal, this is the effective means that guarantees that the transformer can the safe operation.
Because the oil taking port of each transformer substation has different types and the oil-resistant pipe and the interface are not tightly sealed, oil leakage and air leakage are easy to occur, so that the periphery of equipment is full of oil stains, oil taking is inconvenient, and errors exist in data analysis. The sampling process degree of difficulty is big, pollutes heavily, and insulating oil exposes in the air, and oil sample analysis result must receive the influence, and when the sample, transformer oil can be along the screw thread, toward outer oil impregnate, is difficult to the control flow. In the oil taking process, transformer oil is easy to splash, the transformer body and workers are polluted, and the power grid and personal safety have great risks; in addition, in the oil extraction process, gas in the transformer oil is easy to escape or contact with air, and the accuracy of test data is influenced.
Therefore, how to avoid oil leakage and oil injection of the transformer when the oil taking port monitoring device is installed and replaced becomes a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies existing in the prior art, the utility model provides a exempt from to dismantle installation joint for transformer gets hydraulic fluid port for prevent to get the hydraulic fluid port and maintain the oil spout oil leak when changing.
The utility model provides a technical scheme does:
a disassembly-free mounting joint for an oil taking port of a transformer comprises:
the valve core joint, the pressure ring joint and the locking nut;
the inner side of the compression ring joint is provided with an internal thread, the outer side of the compression ring joint is provided with an external thread, and the compression ring joint is connected with the body joint through the internal thread;
the valve core joint comprises an automatic locking part and a connecting part, the automatic locking part is of a step structure, the end part of the automatic locking part is connected with the body joint, and a convex block for installing a locking nut is arranged on the outer side of the automatic locking part;
a first through hole is formed in the self-locking part, a second through hole connected with the three-way valve is formed in the connecting part, a third through hole is formed between the first through hole and the second through hole, the diameter of the third through hole is smaller than that of the first through hole, a steel ball, a spring and a pressure spring nut are arranged in the first through hole, the diameter of the steel ball is smaller than that of the first through hole and larger than that of the second through hole, and the steel ball is arranged at the connecting position of the first through hole and the second through hole through the spring by the pressure spring nut;
the self-locking part of the valve core joint is connected with the second end of the pressure ring joint, and the locking nut is sleeved on the valve core joint and the pressure ring joint and locks the valve core joint and the pressure ring joint.
As a further technical scheme of the utility model do, the clamping ring connects and sets up first sealing washer between the body connects, the stair structure outside of self-locking portion sets up the second sealing washer.
As a further technical scheme of the utility model do, the inboard first draw-in groove that is used for installing first sealing washer that sets up of first end that the clamping ring connects, the outside of self-locking portion sets up the second draw-in groove that is used for installing the second sealing washer.
Further, the first sealing ring and the second sealing ring are made of fluorosilicone rubber.
As a further technical scheme of the utility model do, the side of the stair structure of self-locking portion sets up the sealed pad of third, the side setting of stair structure is used for installing the sealed third draw-in groove that fills up of third.
Further, the third gasket is a teflon gasket.
As a further technical scheme of the utility model do, the junction of first through-hole and second through-hole is the arc structure.
As a further technical scheme of the utility model does, the bearing pressure of steel ball is 15N.
The utility model has the advantages that:
1. the valve core joint of the utility model is used for realizing an oil leakage prevention structure, the valve core joint and the compression ring joint are locked and installed through the locking nut, the output end of the valve core joint is connected with the three-way valve, and the valve core joint is not detached after being connected with the joint of the transformer body, so that the oil injection and oil leakage phenomena are prevented;
2. the self-locking part is used for plugging the oil taking port, the steel ball is pushed to the joint of the first through hole and the second through hole by a compression spring nut extrusion spring, the steel ball plugs the second through hole to plug the valve element joint because the diameter of the second through hole is smaller than that of the steel ball, the device does not need to be disassembled in the process of maintenance and replacement, and when the monitoring device needs to be maintained and replaced, the operation is convenient and no oil leakage occurs;
3. the connecting part is used for connecting the three-way valve, the three-way valve integrates an oil taking port, an exhaust port or a monitoring equipment mounting hole, a thimble of the three-way valve pushes the steel ball into the first through hole, and oil of the transformer can flow into the second through hole through the first through hole and enter the three-way valve due to the fact that the diameter of the first through hole is larger than that of the steel ball, and oil taking and detecting functions are achieved;
4. in order to ensure that the pressure ring joint is reliably connected with the lamp body joint, a first sealing ring is arranged between the pressure ring joint and the lamp body joint; in order to ensure the sealing performance of the valve core joint and the pressure ring joint, a second sealing ring is arranged on the outer side of the step structure of the self-locking part;
5. the first clamping groove and the second clamping groove realize the positioning of the first sealing ring and the second sealing ring, so that the first sealing ring and the second sealing ring are prevented from being installed insecurely, and the sealing effect is ensured;
6. in order to ensure that the first through hole and the second through hole are sealed through the steel ball, the joint of the first through hole and the second through hole is of an arc-shaped structure, and seamless connection with the steel ball can be achieved.
Drawings
Fig. 1 is a structural diagram of a disassembly-free mounting joint for an oil taking port of a transformer, which is provided by the utility model;
fig. 2 is a cross-sectional view of a disassembly-free mounting joint for an oil extraction port of a transformer according to the present invention;
shown in the figure:
10-a valve core joint, 20-a pressure ring joint, 30-a locking nut, 40-a body joint, 50-a three-way valve, 60-a first sealing ring, 70-a second sealing ring and 80-a third sealing gasket;
101-self-locking, 102-connecting;
111-a bump, 112-a first through hole, 121-a second through hole, 113-a third through hole, 114-a steel ball, 115-a spring, 116-a pressure spring nut, 117-a second clamping groove and 118-a third clamping groove;
201-first card slot.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a disassembly-free mounting joint for an oil extraction port of a transformer comprises:
the valve core joint 10, the pressure ring joint 20 and the locking nut 30;
the inner side of the pressure ring joint 20 is provided with an internal thread, the outer side of the pressure ring joint 20 is provided with an external thread, and the pressure ring joint 20 is connected with the body joint 40 through the internal thread;
the valve core joint 10 comprises an automatic lock part 101 and a connecting part 102, the automatic lock part 101 is of a step structure, the end part of the automatic lock part 101 is connected with the body joint 40, and a bump 111 for installing the locking nut 30 is arranged on the outer side of the automatic lock part 101;
a first through hole 112 is formed in the self-locking part 101, a second through hole 121 connected with the three-way valve 50 is formed in the connecting part 102, a third through hole 113 is formed between the first through hole 112 and the second through hole 121, the diameter of the third through hole 113 is smaller than that of the first through hole 112, a steel ball 114, a spring 115 and a pressure spring nut 116 are arranged in the first through hole 112, the diameter of the steel ball 114 is smaller than that of the first through hole 112 and larger than that of the second through hole 121, and the steel ball 114 is arranged at the connecting position of the first through hole 112 and the second through hole 121 through the spring 115 by the pressure spring nut 116;
the self-locking part 101 of the valve core joint 10 is connected with the second end of the pressure ring joint 20, and the locking nut 30 is sleeved on the valve core joint 10 and the pressure ring joint 20 and locks the valve core joint 10 and the pressure ring joint 20.
In the embodiment of the utility model, the clamping ring joint is used for connecting the body joint and the valve core joint, the body joint is connected with the transformer oil taking port, the valve core joint is used for realizing an oil leakage prevention structure, the valve core joint and the clamping ring joint are locked and installed through the locking nut, the output end of the valve core joint is connected with the three-way valve, the three-way valve can be connected with an oil temperature and oil pressure detector, SF6 density sensor and other detection equipment, the end part of the valve core joint is arranged on a thread connected with the three-way valve, the size of the thread is the same as that of the end cap of the three-way valve, and the end cap of the three-way valve can be installed at the end part of the valve core joint and used for buckling the valve core joint;
the valve element connector comprises a self-locking part and a connecting part, the self-locking part is used for plugging the oil taking port, the steel ball is pushed to the joint of the first through hole and the second through hole through a compression spring nut extrusion spring, the diameter of the second through hole is smaller than that of the steel ball, the steel ball plugs the second through hole to realize the plugging of the valve element connector, so that the oil taking port is plugged, the device does not need to be detached in the maintenance and replacement process, and when the monitoring device needs to be maintained and replaced, the operation is convenient and no oil leakage occurs.
Connecting portion are used for connecting the three-way valve, and the three-way valve is integrated gets hydraulic fluid port, gas vent or monitoring facilities mounting hole, during concrete operation, only need to the equipment behind the three-way valve operate can, the connecting portion of three-way valve set up the thimble, and when three-way valve and case articulate, the thimble pushed the steel ball in the first through-hole, because the diameter of first through-hole is greater than the diameter of steel ball, in the oil accessible first through-hole of transformer flowed into the second through-hole and got into the three-way valve, the realization was got oil and was detected the function.
In order to ensure that the pressure ring joint can be reliably connected with the lamp body joint, a first sealing ring 60 is arranged between the pressure ring joint 20 and the body joint 40; in order to ensure the sealing performance of the valve core joint and the pressure ring joint, a second sealing ring 70 is arranged outside the step structure of the self-locking part 101.
The embodiment of the utility model provides an in, the inboard first draw-in groove 201 that is used for installing first sealing washer 60 that sets up of first end that the clamping ring connects 20, the outside of self-locking portion 101 sets up the second draw-in groove 117 that is used for installing second sealing washer 70. The first clamping groove and the second clamping groove are used for positioning the first sealing ring and the second sealing ring, so that the first sealing ring and the second sealing ring are prevented from being installed insecurely, and the sealing effect is guaranteed. Preferably, the first seal ring 60 and the second seal ring 70 are fluorosilicone rubber.
The embodiment of the utility model provides an in, the side of the stair structure of auto-lock portion 101 sets up the sealed pad 80 of third, the side setting of stair structure is used for installing the third draw-in groove 118 that the sealed pad 80 of third. Preferably, the third seal 80 is a teflon seal.
In order to ensure that the first through hole and the second through hole are sealed by steel balls, the joint of the first through hole 112 and the second through hole 121 is of an arc-shaped structure, and seamless connection with the steel balls can be realized. Wherein, the bearing pressure of the steel ball 114 is 15N. When the thrust of the ejector pin installed on the three-way valve is larger than 15N, the steel ball can be pushed to the first through hole to realize the communication with the oil taking port.
The present invention has been described in detail, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art. Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (8)
1. The utility model provides a exempt from to dismantle installation joint for transformer gets hydraulic fluid port which characterized in that includes:
the valve core joint, the pressure ring joint and the locking nut;
the inner side of the compression ring joint is provided with an internal thread, the outer side of the compression ring joint is provided with an external thread, and the compression ring joint is connected with the body joint through the internal thread;
the valve core joint comprises an automatic locking part and a connecting part, the automatic locking part is of a step structure, the end part of the automatic locking part is connected with the body joint, and a convex block for installing a locking nut is arranged on the outer side of the automatic locking part;
a first through hole is formed in the self-locking part, a second through hole connected with the three-way valve is formed in the connecting part, a third through hole is formed between the first through hole and the second through hole, the diameter of the third through hole is smaller than that of the first through hole, a steel ball, a spring and a pressure spring nut are arranged in the first through hole, the diameter of the steel ball is smaller than that of the first through hole and larger than that of the second through hole, and the steel ball is arranged at the connecting position of the first through hole and the second through hole through the spring by the pressure spring nut;
the self-locking part of the valve core joint is connected with the second end of the pressure ring joint, and the locking nut is sleeved on the valve core joint and the pressure ring joint and locks the valve core joint and the pressure ring joint.
2. The disassembly-free mounting joint for the oil taking port of the transformer as recited in claim 1, wherein a first sealing ring is arranged between the pressure ring joint and the body joint, and a second sealing ring is arranged outside the step structure of the self-locking part.
3. The disassembly-free mounting joint for the oil taking port of the transformer as recited in claim 2, wherein a first clamping groove for mounting a first sealing ring is arranged inside the first end of the compression ring joint, and a second clamping groove for mounting a second sealing ring is arranged outside the self-locking portion.
4. The disassembly-free mounting joint for the oil extraction port of the transformer as claimed in claim 3, wherein the first and second sealing rings are made of fluorosilicone rubber.
5. The disassembly-free mounting joint for the oil taking port of the transformer as recited in claim 1, wherein a third sealing gasket is arranged on a side of the step structure of the self-locking part, and a third clamping groove for mounting the third sealing gasket is arranged on a side of the step structure.
6. The disassembly-free mounting joint for the oil extraction port of the transformer as recited in claim 5, wherein the third gasket is a teflon gasket.
7. The disassembly-free mounting joint for the oil taking port of the transformer as recited in claim 1, wherein the joint of the first through hole and the second through hole is an arc-shaped structure.
8. The disassembly-free mounting joint for the oil extraction port of the transformer as recited in claim 1, wherein the bearing pressure of the steel ball is 15N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220634552.8U CN217108675U (en) | 2022-03-22 | 2022-03-22 | Disassembly-free mounting joint for oil taking port of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220634552.8U CN217108675U (en) | 2022-03-22 | 2022-03-22 | Disassembly-free mounting joint for oil taking port of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217108675U true CN217108675U (en) | 2022-08-02 |
Family
ID=82605503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220634552.8U Active CN217108675U (en) | 2022-03-22 | 2022-03-22 | Disassembly-free mounting joint for oil taking port of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217108675U (en) |
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2022
- 2022-03-22 CN CN202220634552.8U patent/CN217108675U/en active Active
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