Oil recharging device for small-sized hydraulic mechanism of primary equipment of transformer substation

Abstract

The utility model discloses an oil supplementing device for a small hydraulic mechanism of primary equipment of a transformer substation. The oil supplementing device comprises an oil well pump, an oil inlet pipe connected with an oil inlet of the oil well pump and an oil outlet pipe connected with an oil outlet of the oil well pump. The end, connected with the oil well pump, of the oil inlet pipe is provided with a first flange. The end, away from the oil well pump, of the oil inlet pipe is provided with a second flange. An oil drum cover capable of sliding along the oil inlet pipe is arranged between the first flange and the second flange, and when the oil drum cover slides to one end of the first flange, the oil drum cover is connected with a drum opening of the oil drum; when the oil drum cover slides to one end of the second flange, the oil drum cover is connected with a plug matched with the oil drum cover; an adapter communicated with the oil outlet pipe and a sealing cover detachably connected with the adapter are arranged at the end, away from the oil well pump, of the oil outlet pipe.

Description

Technical Field

[0001] The utility model relates to an oil replenishing device for a small hydraulic mechanism of primary equipment in a transformer substation. Background Art

[0002] At present, there are many oil-filling devices in the primary equipment of substations. For large oil-filling equipment such as main transformers, large transformers and other equipment with large oil filling volume, special oil-filling equipment is used, and the oil flow rate is large. However, the oil filling volume of oil-filling equipment such as circuit breaker hydraulic mechanism, transformer bushing, current transformer and so on is not large, and the oil filling holes are small. Hydraulic oil can only be replenished through tools such as oil barrels, oil scoops and funnels. When using oil barrels and oil scoops to fill oil, hydraulic oil is easy to spill, which is troublesome to clean up, and impurities such as dust are easy to fall into the oil. Utility Model Content

[0003] The utility model aims to provide an oil replenishing device for a small hydraulic mechanism of primary equipment in a transformer substation, so as to solve the problem.

[0004] In order to solve the above technical problems, the utility model provides an oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation, comprising an oil pump, an oil inlet pipe connected to the oil inlet of the oil pump, and an oil outlet pipe connected to the oil outlet of the oil pump;

[0005] A first flange is provided at one end of the oil inlet pipe connected to the oil pump, and a second flange is provided at one end of the oil inlet pipe away from the oil pump; an oil drum cover that can slide along the oil inlet pipe is provided between the first flange and the second flange, and when the oil drum cover slides toward one end of the first flange, the oil drum cover is connected to the barrel mouth of the oil drum; when the oil drum cover slides toward one end of the second flange, the oil drum cover is connected to a plug that matches the oil drum cover;

[0006] An adapter connected to the oil outlet pipe and an end away from the oil pump are provided, as well as a sealing cover detachably connected to the adapter.

[0007] Furthermore, the oil inlet pipe is a hard plastic conduit made of PVC material, and the oil outlet pipe is a soft plastic conduit.

[0008] Furthermore, a through hole matching with the oil inlet pipe is provided on the top of the oil drum cover, and the oil inlet pipe can slide in the through hole of the oil drum cover; a first internal thread matching with the thread of the barrel mouth of the oil drum is provided on the inner side of the oil drum cover; when refilling oil, the oil inlet pipe is inserted into the oil drum through the barrel mouth of the oil drum, and the oil drum cover is threadedly connected to the barrel mouth.

[0009] Furthermore, the plug is a T-shaped plug, and the part of the plug extending into the oil drum cover is an annular connecting part, and the outer side of the connecting part is provided with a second external thread matching the first internal thread; when the oil replenishment is completed, the oil drum cover is slid to one side of the second flange, and the plug is threadedly connected to the oil drum cover to clamp the second flange between the plug and the oil drum cover.

[0010] Furthermore, one end of the adapter is connected to the oil outlet pipe through a connector, and a sealing cover is connected to the other end of the adapter; a first through hole that axially penetrates and is connected to the oil outlet pipe is provided in the middle of the adapter and the connector.

[0011] Furthermore, the adapter is threadedly connected to the sealing cover.

[0012] Furthermore, the oil replenishing device also includes a sealing plug which is detachably connected to the other end of the connector and matches the oil replenishing port of the equipment to be replenished; a second through hole which penetrates axially and is connected to the first through hole is provided in the middle of the sealing plug.

[0013] Furthermore, the cross section of the sealing plug is trapezoidal.

[0014] Furthermore, a sealing gasket is provided on the surface of the sealing plug.

[0015] Furthermore, the sealing plug is threadably connected to the adapter.

[0016] The beneficial effects of the utility model are as follows: by providing a detachable plug, the oil inlet end of the oil inlet pipe can be plugged when the device is not in use, thereby preventing impurities from entering the oil inlet pipe and entering the oil pump or the equipment to be replenished with the next oil replenishment; by providing a sealing cover, the oil outlet end of the oil outlet pipe can be sealed when the device is not in use, thereby preventing impurities from entering the oil outlet pipe and entering the equipment to be replenished with the next oil replenishment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to represent the same or similar parts. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 The schematic diagram is a structural diagram of an embodiment of the utility model during oil replenishment.

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the utility model after oil replenishment is completed.

[0020] Figure 3 The present invention is a schematic structural diagram of an oil drum cover and a plug according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the adapter and sealing cover structure of an embodiment of the utility model.

[0022] Figure 5 This is a schematic diagram of the adapter and sealing plug structure of an embodiment of the utility model.

[0023] Among them: 1. oil pump; 11. oil inlet; 12. oil outlet; 2. oil inlet pipe; 21. first flange; 22. second flange; 3. oil drum cover; 31. through hole; 32. first internal thread; 4. oil outlet pipe; 5. adapter; 51. first external thread; 52. connector; 6. sealing plug; 61. second internal thread; 62. sealing gasket; 7. plug; 71. second external thread; 72. hollow groove; 8. sealing cover; 81. third internal thread. DETAILED DESCRIPTION

[0024] like Figure 1 and Figure 2 The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation shown comprises an oil pump 1, an oil inlet pipe 2 connected to an oil inlet port 11 of the oil pump 1, and an oil outlet pipe 4 connected to an oil outlet port 12 of the oil pump 1; a first flange 21 is provided at one end of the oil inlet pipe 2 connected to the oil pump 1, and a second flange 22 is provided at one end of the oil inlet pipe 2 away from the oil pump 1; an oil drum cover 3 which can slide along the oil inlet pipe 2 is provided between the first flange 21 and the second flange 22, and when the oil drum cover 3 slides toward one end of the first flange 21, the oil drum cover 3 is connected to the barrel mouth of the oil drum; when the oil drum cover 3 slides toward one end of the second flange 22, the oil drum cover 3 is connected through a plug 7 which matches the oil drum cover 3; by providing the plug 7, when the device is not used, the oil inlet end of the oil inlet pipe 2 can be plugged to prevent impurities from entering the oil inlet pipe 2 and entering the oil pump 1 or the equipment to be replenished with oil during the next oil replenishment.

[0025] The end of the oil outlet pipe 4 away from the oil pump 1 is provided with an adapter 5 connected to the oil outlet pipe 4 and a sealing cover 72 detachably connected to the adapter 5. By providing the sealing cover 72, the oil outlet end of the oil outlet pipe 4 can be blocked when the device is not in use, preventing impurities from entering the oil outlet pipe 4 and entering the equipment to be replenished with the next oil replenishment.

[0026] According to an embodiment of the present application, the oil inlet pipe 2 is a hard plastic conduit made of PVC material, and the oil outlet pipes 5 are all soft plastic conduits.

[0027] According to one embodiment of the present application, Figure 3 As shown, the top of the oil drum cover 3 is provided with a through hole 31 that matches with the oil inlet pipe 2, and the oil inlet pipe 2 can slide in the through hole 31 of the oil drum cover 3; the inner side of the oil drum cover 3 is provided with a first internal thread 32 that matches with the thread of the barrel mouth of the oil drum; when replenishing oil, the oil inlet pipe 2 is inserted into the oil drum through the barrel mouth of the oil drum, and the oil drum cover 3 is threadedly connected to the barrel mouth.

[0028] According to an embodiment of the present application, the plug 7 is a T-shaped plug, and the portion of the plug 7 extending into the oil drum cover 3 is an annular connecting portion, and the outer side of the connecting portion is provided with a second external thread 71 that matches the first internal thread 32; when the oil replenishment is completed, the oil drum cover 3 is slid to one side of the second flange 22, and the plug 7 is threadedly connected with the oil drum cover 3 to clamp the second flange 22 between the plug 7 and the oil drum cover 3. In order to ensure that the oil inlet pipe can smoothly absorb the hydraulic oil, the oil inlet end of the oil inlet pipe 2 is generally set to an oblique mouth. Therefore, in the present application, the connecting portion of the plug 7 is set to be annular, and the middle part of the connecting portion is a hollow groove 72 that matches the oil inlet end of the oil inlet pipe. When the oil inlet end of the oil inlet pipe 2 is blocked, the oblique part of the oil inlet pipe 2 is set in the hollow groove 72.

[0029] According to one embodiment of the present application, one end of the adapter 5 is connected to the oil outlet pipe 4 through the connector 52, and the sealing cover 72 is connected to the other end of the adapter 5; a first through hole is provided in the middle of the adapter 5 and the connector 52, which axially passes through the adapter 5 and the connector 52 and is connected to the oil outlet pipe 4.

[0030] According to one embodiment of the present application, the adapter 5 is threadedly connected to the sealing cover 72, such as Figure 4 As shown, the adapter 5 is provided with a first external thread 51 , and the sealing cover 72 is provided with a third internal thread 81 matching with the first external thread 51 .

[0031] According to an embodiment of the present application, the oil replenishing device further includes a sealing plug 6 which is detachably connected to the other end of the connector 52 and matches the oil replenishing port of the equipment to be replenished; a second through hole is axially penetrated in the middle of the sealing plug 6 and is connected to the first through hole. By providing the sealing plug 6, the oil replenishing port of the equipment to be replenished can be blocked during oil replenishment, which can not only prevent the hydraulic oil from splashing out of the oil replenishing port, but also prevent external impurities from falling into the oil replenishing port of the equipment to be replenished.

[0032] According to an embodiment of the present application, the cross-section of the sealing plug 6 is trapezoidal, which can adapt to equipment with different calibers to be filled with oil.

[0033] According to one embodiment of the present application, a sealing gasket 62 is provided on the surface of the sealing plug 6 .

[0034] According to one embodiment of the present application, the sealing plug 6 is threadedly connected to the adapter 5; Figure 4 As shown, one end of the sealing plug 6 connected to the adapter 5 is provided with a second internal thread 61 that matches the first external thread 51 on the outside of the adapter 5 .

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An oil replenishing device for a small hydraulic mechanism of a primary equipment in a substation, characterized in that: It comprises an oil pump, an oil inlet pipe connected to the oil inlet of the oil pump, and an oil outlet pipe connected to the oil outlet of the oil pump; The end of the oil inlet pipe connected to the oil pump is provided with a first flange, and the end of the oil inlet pipe away from the oil pump is provided with a second flange; an oil drum cover that can slide along the oil inlet pipe is provided between the first flange and the second flange, and when the oil drum cover slides to one end of the first flange, the oil drum cover is connected to the barrel mouth of the oil drum; when the oil drum cover slides to one end of the second flange, the oil drum cover is connected to a plug that matches the oil drum cover; The oil outlet pipe and one end away from the oil pump are provided with an adapter connected to the oil outlet pipe and a sealing cover detachably connected to the adapter.

2. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 1 is characterized in that: The oil inlet pipe is a hard plastic conduit made of PVC material, and the oil outlet pipe is a soft plastic conduit.

3. The oil replenishing device for a small hydraulic mechanism of a substation primary equipment according to claim 2 is characterized in that: The top of the oil drum cover is provided with a through hole that matches the oil inlet pipe, and the oil inlet pipe can slide in the through hole of the oil drum cover; the inner side of the oil drum cover is provided with a first internal thread that matches the thread of the barrel mouth of the oil drum; when refilling oil, the oil inlet pipe is inserted into the oil drum through the barrel mouth of the oil drum, and the oil drum cover is threadedly connected to the barrel mouth.

4. The oil replenishing device for a small hydraulic mechanism of a substation primary equipment according to claim 3 is characterized in that: The plug is a T-shaped plug, and the part of the plug extending into the oil drum cover is an annular connecting portion, and the outer side of the connecting portion is provided with a second external thread matching the first internal thread; when the oil replenishment is completed, the oil drum cover is slid to one side of the second flange, and the plug is threadedly connected to the oil drum cover to clamp the second flange between the plug and the oil drum cover.

5. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 4, characterized in that: One end of the adapter is connected to the oil outlet pipe through a connector, the sealing cover is connected to the other end of the adapter, and a first through hole axially penetrating the adapter and the connector and connected to the oil outlet pipe is provided in the middle.

6. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 5, characterized in that: The adapter is threadedly connected to the sealing cover.

7. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 6, characterized in that: The oil replenishing device also includes a sealing plug which is detachably connected to the other end of the connector and matches the oil replenishing port of the equipment to be replenished with oil. A second through hole which penetrates axially and is connected to the first through hole is provided in the middle of the sealing plug.

8. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 7, characterized in that: The cross section of the sealing plug is trapezoidal.

9. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 8, characterized in that: A sealing gasket is provided on the surface of the sealing plug.

10. The oil replenishing device for a small hydraulic mechanism of a primary equipment of a substation according to claim 9, characterized in that: The sealing plug is threadably connected to the adapter.

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