CN117432854B

CN117432854B - Oil plug structure

Info

Publication number: CN117432854B
Application number: CN202311764563.3A
Authority: CN
Inventors: 戴杜; 邹昀; 胡源; 王官社
Original assignee: Suzhou Yiteng Electronic Technology Co ltd
Current assignee: Suzhou Yiteng Electronic Technology Co ltd
Priority date: 2023-12-21
Filing date: 2023-12-21
Publication date: 2024-04-02
Anticipated expiration: 2043-12-21
Also published as: CN117432854A

Abstract

The invention belongs to the technical field of oil plugs, and discloses an oil plug structure. The oil plug structure comprises a pipe sleeve cover, a sealing component and a spiral cover. The pipe sleeve cover is covered and is located the oiling mouth of pipe sleeve, and the through-hole has been seted up along the first direction to the pipe sleeve cover, is provided with the supporting part in the through-hole, and a plurality of air passing holes have been seted up in the supporting part penetration. The sealing assembly comprises a sealing cover and a connecting rod which are connected, the connecting rod extends along a first direction and penetrates through the supporting portion, a clamping portion is arranged on the connecting rod, the clamping portion can be abutted with the supporting portion, and the sealing cover can be abutted with one side of the pipe sleeve cover, which is located in the pipe sleeve, so that the through hole is plugged. The screw cap is in threaded connection with one end of the connecting rod, which is far away from the sealing cap, and the connecting rod can move along a first direction by rotating the screw cap so as to enable the sealing cap to seal the through hole. The oil inlet is plugged from the inside of the pipe sleeve by the oil plug structure. The bubble inside the pipe sleeve can enter the air in the plugging process, so that the condition that the external air is pressed into the pipe sleeve is avoided, no bubble in insulating oil is realized, and the insulation and heat dissipation effects are ensured.

Description

Oil plug structure

Technical Field

The invention relates to the technical field of oil plugs, in particular to an oil plug structure.

Background

The vacuum diode of the X-ray tube working under the high voltage environment can reach hundreds kilovolts, and almost all energy is converted into heat energy, so insulating oil is injected into the X-ray tube for insulation and heat dissipation, and a vacuum oiling process is needed to prevent bubbles from being mixed into the oil to reduce the insulation and heat dissipation effect.

After oiling is completed, the oiling port needs to be plugged, and the current common method is to use an oil plug to directly screw in the oiling port from the outside of the pipe sleeve so as to seal the oiling port, however, the plugging mode may press outside air into the pipe sleeve, so that bubbles are mixed in the insulating oil, and the insulating and heat dissipation effects are affected.

Therefore, it is desirable to provide an oil blocking structure to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide an oil plug structure which can plug an oil inlet from the inner part of a pipe sleeve. Inside bubble can enter into the air in the shutoff in-process, has avoided pressing the condition emergence in the pipe box with outside air, has guaranteed insulating and radiating effect, and simple structure, with low costs.

To achieve the purpose, the invention adopts the following technical scheme:

an oil plug structure comprising:

the pipe sleeve cover is arranged on the oil filling port of the pipe sleeve and provided with a through hole along the first direction, a supporting part is arranged in the through hole, and a plurality of air passing holes are formed in the supporting part in a penetrating manner;

the sealing assembly comprises a sealing cover and a connecting rod which are connected, the connecting rod extends along the first direction and penetrates through the supporting part, a clamping part is arranged on the connecting rod, the clamping part can be abutted with the supporting part, and the sealing cover can be abutted with one side of the pipe sleeve cover, which is positioned in the pipe sleeve, so that the through hole is plugged;

the spiral cover is in threaded connection with one end, far away from the sealing cover, of the connecting rod, and the connecting rod can move along the first direction by rotating the spiral cover, so that the sealing cover seals the through hole.

Preferably, the sealing assembly further comprises a plurality of guide rods, wherein the guide rods extend along the first direction and penetrate through the supporting portion.

Preferably, the sealing assembly further comprises a sealing element, wherein the sealing element is sleeved on the sealing cover, and the sealing element is positioned between the sealing cover and the pipe sleeve cover.

Preferably, the sealing cover comprises a blocking portion and an abutting portion, the blocking portion is connected with the connecting rod, the sealing piece is sleeved on the blocking portion, and the abutting portion abuts against one side, located in the pipe sleeve, of the pipe sleeve cover.

Preferably, the sealing member is made of nitrile rubber.

Preferably, the screw cap is screwed with the pipe sleeve cover.

Preferably, the screw cap includes a connection portion and a limiting portion, the connection portion is located in the through hole, and the limiting portion can abut against the pipe cap.

Preferably, the pipe sleeve cover is provided with a containing groove, the containing groove is communicated with the through hole, and the containing groove is configured to contain the limiting part.

Preferably, the pipe sleeve cover comprises a fixing part, and the fixing part is fixedly connected with the pipe sleeve through a locking piece.

Preferably, the locking member is a screw.

The beneficial effects are that:

the oil plug structure comprises a pipe sleeve cover, a sealing component and a spiral cover. The pipe sleeve cover is covered and is located the oiling mouth of pipe sleeve, and the through-hole has been seted up along the first direction to the pipe sleeve cover, is provided with the supporting part in the through-hole, and the supporting part runs through along the first direction and has seted up the gas passing hole. The sealing assembly comprises a sealing cover and a connecting rod which are connected, the connecting rod extends along a first direction and penetrates through the supporting portion, a clamping portion is arranged on the connecting rod, the clamping portion can be abutted with the supporting portion, and the sealing cover can be abutted with one side of the pipe sleeve cover, which is located in the pipe sleeve, so that the through hole is plugged. The screw cap is in threaded connection with one end of the connecting rod, which is far away from the sealing cap, and the connecting rod can move along a first direction by rotating the screw cap so as to enable the sealing cap to seal the through hole.

The spiral cover is arranged on the through hole and rotates, so that the spiral cover is in threaded connection with the connecting rod, the connecting rod moves upwards along the first direction in a spiral manner under the rotation of the spiral cover, the sealing cover is driven to move towards the pipe sleeve cover until the sealing cover is abutted with the pipe sleeve cover, and the through hole is plugged, namely, the plugging of the oil inlet from the inside of the pipe sleeve is realized. In the plugging process, internal bubbles can enter air, so that the condition that the conventional oil plug presses external air into the pipe sleeve is avoided, no bubbles in insulating oil are realized, and the insulation and heat dissipation effects of the insulating oil are ensured.

Drawings

FIG. 1 is a schematic view of an oil plug structure provided by the present invention;

FIG. 2 is a cross-sectional view of an oil plugging structure provided by the invention in an unplugged state;

FIG. 3 is a cross-sectional view of the oil plugging structure provided by the invention in a plugged state;

fig. 4 is a schematic view of a seal assembly provided by the present invention.

In the figure:

1. a pipe sleeve cover; 11. a support part; 12. a receiving groove; 13. a fixing part;

2. a seal assembly; 21. a connecting rod; 211. a clamping part; 22. a cover; 221. a blocking part; 222. an abutting portion; 23. a guide rod; 24. a seal;

3. screwing the cover; 31. a connection part; 32. and a limiting part.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

In order to solve the above problems, referring to fig. 1 to 3, the present embodiment provides an oil plug structure. The oil plug structure comprises a pipe sleeve cover 1, a sealing component 2 and a spiral cover 3. The pipe sleeve cover 1 covers the oil filling port of locating the pipe sleeve, and the through-hole has been seted up along first direction to pipe sleeve cover 1, is provided with supporting part 11 in the through-hole, and the gas passing hole has been seted up in the supporting part 11 run through along first direction. The seal assembly 2 comprises a sealing cover 22 and a connecting rod 21 which are connected, the connecting rod 21 extends along a first direction and penetrates through the supporting portion 11, a clamping portion 211 is arranged on the connecting rod 21, the clamping portion 211 can be abutted with the supporting portion 11, and the sealing cover 22 can be abutted with one side, located in the pipe sleeve, of the pipe sleeve cover 1 so as to seal the through hole. The screw cap 3 is screw-coupled to an end of the link 21 remote from the cap 22, and rotating the screw cap 3 enables the link 21 to move in a first direction so that the cap 22 blocks the through hole.

Referring to fig. 2, after the oiling is completed, the pipe cap 1 is covered on the oiling port, at this time, the clamping portion 211 of the sealing assembly 2 abuts against the supporting portion 11, that is, the sealing assembly 2 is hung on the pipe cap 1 at this time, and the oiling port is not sealed at this time, and air can enter (or reversely flow out of) the pipe cap along the direction of the arrow shown in the drawing through the air hole. And then the spiral cover 3 is covered on the through hole and rotated, so that the spiral cover 3 is in threaded connection with the connecting rod 21, the connecting rod 21 moves upwards along the first direction in a spiral manner under the rotation of the spiral cover 3, and the sealing cover 22 is driven to move towards the pipe sleeve cover 1 until the sealing cover 22 is abutted with the pipe sleeve cover 1, and the through hole is plugged, namely, the plugging of an oil inlet from the inside of the pipe sleeve is realized.

In the plugging process, internal bubbles can enter the air along the arrow direction and the air passing holes shown in fig. 2, so that the condition that the conventional oil plug presses external air into the pipe sleeve is avoided, no bubbles in insulating oil are realized, and the insulation and heat dissipation effects of the insulating oil are ensured.

Specifically, referring to fig. 4, the sealing assembly 2 further includes a plurality of guide rods 23, and the guide rods 23 extend along the first direction and penetrate through the supporting portion 11. Under the guiding action of the guide rod 23, the connecting rod 21 can stably move upwards in a spiral mode along the first direction, and therefore the sealing cover 22 and the pipe sleeve cover 1 can be stably abutted.

In this embodiment, the number of the guide rods 23 is three, and the guide rods are uniformly arranged on the cover 22.

Since the insulating oil is liquid, even if the cover 22 abuts the tube cover 1, that is, covers the through hole to block the through hole, there is a risk of leakage of the insulating oil. In order to improve the reliability of the oil blocking structure and prevent the risk of oil leakage, the sealing assembly 2 further comprises a sealing element 24, wherein the sealing element 24 is sleeved on the sealing cover 22, and the sealing element 24 is positioned between the sealing cover 22 and the pipe sleeve cover 1. The sealing performance of the oil blocking structure is improved through the sealing piece 24, and oil leakage is prevented.

In this embodiment, referring to fig. 3 and 4, the cover 22 includes a blocking portion 221 and an abutting portion 222, the blocking portion 221 is connected to the connecting rod 21, the sealing member 24 is sleeved on the blocking portion 221, and the abutting portion 222 abuts against a side of the pipe cover 1 located in the pipe cover. When the cover 22 moves toward the cap 1 in the first direction, the blocking portion 221 is inserted into the through hole until the abutting portion 222 blocks the through hole, and at this time, the seal 24 receives pressure from three directions of the cap 1, the blocking portion 221 and the abutting portion 222, so that the sealing performance is better.

Preferably, the material of the seal 24 is nitrile rubber. The nitrile rubber has excellent oil resistance and aromatic solvent resistance, is not easy to be corroded by insulating oil, is durable in use, and is convenient to process and manufacture, low in price and easy to obtain materials.

It will be appreciated that when the screw cap 3 is rotated to drive the link 21 in the first direction to cause the cap 22 to close the through hole, the screw cap 3 also needs to remain connected to the cap 1, only so that the seal assembly 2 can be held in abutment with the cap 1 to close the through hole.

In the present embodiment, the screw cap 3 is screw-coupled to the cap 1, and the screw cap 3 can also be screw-coupled to the cap 1 when the screw cap 3 is rotated to drive the link 21 to move, so that the screw cap 3 is maintained in a coupled state with the cap 1.

Specifically, referring to fig. 2 and 3, the screw cap 3 includes a connecting portion 31 and a limiting portion 32, wherein the connecting portion 31 is located in the through hole, and the limiting portion 32 can be abutted with the pipe cap 1. It can be understood that, during the process of rotating the cap 3, the connecting portion 31 of the cap 3 extends into the through hole along the first direction, and when the limiting portion 32 abuts against the cap 1, the abutting portion 222 abuts against the side of the cap 1 located in the sleeve at this time, that is, the blocking is completed, and the cap 3 can be stopped from rotating. By providing the limiting portion 32, it is possible for the operator to clearly know when the cap 3 can be stopped rotating, and the situation of oil leakage caused by insufficient plugging or the situation of damage to the cap 1 or the abutting portion 222 caused by continued rotation of the cap 3 due to abutting of the abutting portion 222 with the cap 1 will not occur.

Preferably, referring to fig. 1, the pipe cap 1 is provided with a receiving groove 12, the receiving groove 12 is communicated with the through hole, and the receiving groove 12 is configured to receive the limiting portion 32. After the connecting portion 31 is screwed into the through hole, the limiting portion 32 can be accommodated by the accommodating groove 12, so that the upper surface of the limiting portion 32 is flush with the upper surface of the pipe sleeve cover 1 or lower than the upper surface of the pipe sleeve cover 1, the limiting portion 32 is prevented from protruding out of the pipe sleeve cover 1 and is collided by external force to be inclined, and further the sealing assembly 2 is inclined to cause the occurrence of the condition of blocking failure of the through hole.

Specifically, referring to fig. 2 and 3, the pipe sleeve cover 1 includes a fixing portion 13, where the fixing portion 13 is fixedly connected to the pipe sleeve through a locking member, so that the oil plug structure can be more firmly covered on the oil filling port of the pipe sleeve.

In this embodiment, the locking member is a screw. In other embodiments, the locking member may be a bolt. In the prior art, the structure that can fixedly connect the socket cover 1 and the socket can be used as the locking member, which is not limited in this embodiment.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. An oil blocking structure, characterized by comprising:

the pipe sleeve cover (1), the pipe sleeve cover (1) covers an oil filling port of the pipe sleeve, the pipe sleeve cover (1) is provided with a through hole along a first direction, a supporting part (11) is arranged in the through hole, and the supporting part (11) is provided with a plurality of air passing holes in a penetrating mode;

the sealing assembly (2), the sealing assembly (2) comprises a connecting rod (21) and a sealing cover (22) which are connected, the connecting rod (21) extends along the first direction and penetrates through the supporting part (11), a clamping part (211) is arranged on the connecting rod (21), the clamping part (211) can be in butt joint with the supporting part (11), and the sealing cover (22) can be in butt joint with one side of the pipe sleeve cover (1) in the pipe sleeve so as to seal the through hole;

the spiral cover (3) is in threaded connection with one end, far away from the sealing cover (22), of the connecting rod (21), and the spiral cover (3) can be rotated to drive the connecting rod (21) to move along the first direction, so that the sealing cover (22) seals the through hole.

2. The oil plugging structure according to claim 1, wherein the sealing assembly (2) further comprises a plurality of guide rods (23), the guide rods (23) extending in the first direction and penetrating the support (11).

3. The oil plugging structure according to claim 1, wherein the sealing assembly (2) further comprises a sealing member (24), the sealing member (24) is sleeved on the sealing cover (22), and the sealing member (24) is located between the sealing cover (22) and the pipe sleeve cover (1).

4. A plug structure according to claim 3, wherein the cover (22) comprises a blocking portion (221) and an abutting portion (222), the blocking portion (221) is connected with the connecting rod (21), the sealing member (24) is sleeved on the blocking portion (221), and the abutting portion (222) abuts against a side of the pipe sleeve cover (1) located in the pipe sleeve.

5. A plug structure according to claim 3, wherein the sealing member (24) is made of nitrile rubber.

6. The oil plug structure according to any one of claims 1 to 5, wherein the screw cap (3) is screwed with the pipe cap (1).

7. The oil plug structure according to claim 1, wherein the screw cap (3) comprises a connecting portion (31) and a limiting portion (32), the connecting portion (31) is located in the through hole, and the limiting portion (32) can be abutted with the pipe cap (1).

8. The oil plug structure according to claim 7, wherein the pipe cap (1) is provided with a receiving groove (12), the receiving groove (12) is communicated with the through hole, and the receiving groove (12) is configured to receive the limiting portion (32).

9. The oil plugging structure according to claim 1, wherein the pipe cap (1) includes a fixing portion (13), and the fixing portion (13) is fixedly connected with the pipe cap by a locking member.

10. The oil blocking structure according to claim 9, wherein the locking member is a screw.