CN211126543U

CN211126543U - Novel ring main unit

Info

Publication number: CN211126543U
Application number: CN201922423145.3U
Authority: CN
Inventors: 屠明达
Original assignee: Zhejiang Chengchuan Electric Power Equipment Co ltd
Current assignee: Zhejiang Chengchuan Electric Power Equipment Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-07-28
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a novel ring main unit, which comprises a cabinet body, the cabinet body is spliced with the pencil that is equipped with, and the pencil with the junction of the cabinet body has cup jointed first sealed lid and second sealed lid, first sealed lid with first sealed lid screw-thread fit extrudes the seal ring who is equipped with at the surface of pencil, and then realizes the surface of pencil and the sealed connection of first sealed lid and second sealed lid, because all be equipped with seal ring between first sealed lid and the second sealed lid, make the first sealed lid and the sealed seal of second sealed lid and the junction of cabinet body, pack the water absorbing material in the interlayer that is equipped with inside the first sealed lid, effectively prevent outside steam from getting into the inside of the cabinet body through the pencil, the effectual problem that the internal electrical equipment of cabinet body is influenced by steam of having solved; two sealing rings are equipped with the opening for the sealing ring can direct block on the pencil, need not cut off the power supply when making the sealing ring change, consequently also guaranteed this looped netowrk cabinet's permanent use.

Description

Novel ring main unit

Technical Field

The utility model relates to an electrical equipment's technical field specifically is a novel looped netowrk cabinet.

Background

When the existing ring main unit is used outdoors, according to the requirement of installation specification, the bottom of the ring main unit is a semi-submersible type cable well, and the depth is not less than 1.3 m. The cable in the ring main unit penetrates out of the through hole in the bottom plate of the ring main unit and enters the cable well, and then is connected with other circuits. However, due to the problems of cable pipeline sewage irrigation, rainwater collection and the like, accumulated water with different degrees exists in the cable well. The long-term existence of this part ponding has produced a large amount of vapor, and the through-hole that is used for the cable to pass on looped netowrk cabinet body bottom plate gets into the cabinet internally, forms the condensation very easily under the big condition of difference in temperature. Because the cabinet body is in a state of large moisture for a long time, the operating mechanism is rusted, the insulation degree is reduced, and the like, and the safe operation of the equipment is seriously influenced. Statistics shows that more than 70% of outdoor ring main units have obvious condensation phenomenon. Because of the high requirement of power supply reliability, the power failure cannot be adopted to treat condensation under the non-special condition, and therefore, the scheme for solving the condensation problem under the condition of no power failure is feasible.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel looped netowrk cabinet to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel ring main unit comprises a main unit body, wherein a wire harness hole is formed in the main unit body, a wire harness is inserted in the wire harness hole, and after the wire harness is connected with the main unit body, the wire harness is hermetically connected into the main unit body through a first sealing cover and a second sealing cover; a first sealing ring and a second sealing ring are clamped on the wire harness, and the first sealing ring and the second sealing ring are tightly extruded on the outer surface of the wire harness through the threaded matching of a first sealing cover and a second sealing cover; the first sealing cover is positioned on one side face of the cabinet body, the second sealing cover is positioned on the other side face of the cabinet body, and rubber gaskets are arranged on the two side faces of the cabinet body to realize the sealing connection of the first sealing cover and the second sealing cover with the cabinet body; the inside of first sealed lid is equipped with hollow interlayer, just the interlayer is in through setting up discharge gate and air inlet on the first sealed lid are connected the intercommunication with the external world, just the inside of interlayer is filled the material that absorbs water.

As the utility model discloses a preferred technical scheme: a circular pipe is arranged at the circle center of the first sealing cover, a connecting pipe is arranged below the first sealing cover, and external threads are arranged on the outer surface of the connecting pipe; the second sealing cover is provided with a hollow pipe, an internal thread matched with the external thread is arranged in the hollow pipe, and the second sealing cover is also provided with a penetrating pipe concentric with the round pipe and having the same diameter.

As the utility model discloses a preferred technical scheme: the round pipe and the penetrating pipe are used for guiding the wiring harness to penetrate into the cabinet body.

As the utility model discloses a preferred technical scheme: the connecting pipe is internally used for accommodating the first sealing ring, the hollow pipe is internally used for accommodating the second sealing ring, and the round pipe and the penetrating pipe are used for extruding the first sealing ring and the second sealing ring when the connecting pipe is in threaded connection with the hollow pipe.

As the utility model discloses a preferred technical scheme: the number of the rubber gaskets is two, and the rubber gaskets are respectively sleeved on the outer side surfaces of the connecting pipe and the hollow pipe through a groove arranged on the height surface of the rubber gaskets.

As the utility model discloses a preferred technical scheme: the first sealing ring and the second sealing ring are both made of rubber materials, and the cross sections of the first sealing ring and the second sealing ring are trapezoidal; the first sealing ring and the second sealing ring are provided with openings along the height direction of the cross section, and the openings are used for guiding the wiring harness to the inside of the first sealing ring and the inside of the second sealing ring and are tightly attached to the outer surface of the wiring harness.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that: 1. the first sealing cover is in threaded fit with the first sealing cover, and the arranged sealing washer is extruded on the outer surface of the wire harness, so that the outer surface of the wire harness is in sealing connection with the first sealing cover and the second sealing cover;

2. because the sealing gaskets are arranged between the first sealing cover and the second sealing cover, the joints of the first sealing cover and the second sealing cover and the cabinet body are sealed, and the interlayer arranged inside the first sealing cover is filled with water-absorbing materials, so that external water vapor is effectively prevented from entering the cabinet body through a wire harness, and the problem that electrical equipment inside the cabinet body is influenced by the water vapor is effectively solved;

3. two sealing rings are equipped with the opening for the sealing ring can direct block on the pencil, need not cut off the power supply when making the sealing ring change, consequently also guaranteed this looped netowrk cabinet's permanent use.

Drawings

Fig. 1 is a schematic view of a partial structure of the present invention;

fig. 2 is an exploded schematic view of the sealing cover of the present invention.

In the figure: 1. a cabinet body; 2. a first sealing cover; 3. a second sealing cover; 4. a wire harness; 5. a first seal ring; 6. a second seal ring; 7. an opening; 8. a rubber gasket; 21. a discharge port; 22. An external thread; 23. an air inlet; 24. a circular tube; 25. an interlayer; 26. a connecting pipe; 31. an internal thread; 33. pipe penetration; 35. a hollow tube.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides an embodiment: a novel ring main unit comprises a main body 1, wherein a wire harness hole is formed in the main body 1, a wire harness 4 is inserted in the wire harness hole, and after the wire harness 4 is connected with the main body 1, the wire harness 4 is hermetically connected into the main body 1 through a first sealing cover 2 and a second sealing cover 3; a first sealing ring 5 and a second sealing ring 6 are clamped on the wire harness 4, and the first sealing ring 5 and the second sealing ring 6 are tightly extruded on the outer surface of the wire harness 4 through the threaded matching of the first sealing cover 2 and the second sealing cover 3; the first sealing cover 2 is positioned on one side surface of the cabinet body 1, the second sealing cover 3 is positioned on the other side surface of the cabinet body 1, and rubber gaskets 8 are arranged on the two side surfaces of the cabinet body 1 to realize the sealing connection between the first sealing cover 2 and the second sealing cover 3 and the cabinet body 1; the inside of first sealed lid 2 is equipped with hollow interlayer 25, just interlayer 25 is connected the intercommunication through setting up discharge gate 21 and air inlet 23 on the first sealed lid 2 with the external world, just the inside of interlayer 25 is filled water-absorbing material.

Through the technical scheme, the utility model discloses a theory of operation is: firstly, a first sealing cover 2, a second sealing cover 3 and a rubber gasket 8 are penetrated on a wire harness 4, the first sealing cover 2 is positioned inside a cabinet body 1, the second sealing cover 3 is positioned outside the cabinet body 1, the wire harness 4 penetrates through a wire harness hole in the cabinet body 1, then a first sealing ring 5 and a second sealing ring 6 are sleeved on the wire harness 4, the first sealing cover 2 and the second sealing cover 3 are screwed tightly, the first sealing ring 5 and the second sealing ring 6 are tightly extruded on the wire harness 4, the tight fit between the outer surface of the wire harness 4 and the first sealing ring 5 and the second sealing ring 6 is realized, the gap is reduced, the sealing performance is improved, and water vapor is slowed down and prevented from entering the cabinet body 1 through the wire harness 4; in addition, water absorbing materials such as quicklime, activated carbon or other water absorbing materials are filled in the first sealing cover 2, so that water vapor is further prevented from entering the cabinet body 1 through the wire harness 4, and the two rubber gaskets 8 tightly seal wire harness holes in the cabinet body 1 after the first sealing cover 2 and the second sealing cover 3 are tightly connected, so that the water vapor is prevented from entering the cabinet body 1 through the wire harness holes in the cabinet body 1;

the water absorbing material can be conveniently filled by arranging the discharge port 21, and then the cover is used for covering, and the water absorbing material in the interlayer 25 is discharged by injecting gas by arranging the gas inlet 23, so that the water absorbing material can be replaced without power failure.

In order to further facilitate the connection of the two sealing covers, a circular tube 24 is arranged at the center of the first sealing cover 2, a connecting pipe 26 is arranged below the first sealing cover 2, and an external thread 22 is arranged on the outer surface of the connecting pipe 26; the second sealing cover 3 is provided with a hollow pipe 35, an internal thread 31 matched with the external thread 22 is arranged in the hollow pipe 35, a penetrating pipe 33 concentric with and in the same diameter as the circular pipe 24 is further arranged on the second sealing cover 3, vent holes are uniformly distributed on the circular pipe 24 and are connected and communicated with the interlayer 25 through the vent holes, and water vapor is adsorbed into the interlayer 25.

In order to facilitate the insertion of the wire harness 4 and the insertion of the guiding wire harness 4, both the circular tube 24 and the penetrating tube 33 are used for guiding the insertion of the wire harness 4 into the cabinet 1.

The inside of the connecting pipe 26 is used for accommodating the first sealing ring 5, the inside of the hollow pipe 35 is used for accommodating the second sealing ring 6, the round pipe 24 and the penetrating pipe 33 are used for extruding the first sealing ring 5 and the second sealing ring 6 when the connecting pipe 26 is in threaded connection with the hollow pipe 35, the first sealing ring 5 and the second sealing ring 6 are sequentially placed in the round pipe 24 and the hollow pipe 35, so that the two sealing rings are prevented from being exposed outside, the two sealing rings are better attached to the outer surface of the wire harness 4 during extrusion, and the movable connection of the first sealing cover 2 and the second sealing cover 3 is facilitated.

The sealing performance is further improved, the water vapor is blocked, the number of the rubber gaskets 8 is two, and the rubber gaskets 8 are respectively sleeved on the outer side surfaces of the connecting pipe 26 and the hollow pipe 35 through the grooves formed in the height surfaces of the rubber gaskets.

In order to ensure that the first sealing ring 5 and the second sealing ring 6 can be replaced conveniently under the condition of no power failure, the first sealing ring 5 and the second sealing ring 6 are both made of rubber materials, and the cross sections of the first sealing ring 5 and the second sealing ring 6 are trapezoidal; the opening 7 is formed in the height direction of the cross section of the first sealing ring 5 and the second sealing ring 6, the opening 7 is used for guiding the wire harness 4 to the inside of the first sealing ring 5 and the second sealing ring 6 and is tightly attached to the outer surface of the wire harness 4, the opening 7 is firstly sleeved on the wire harness 4 along the length direction of the wire harness 4, then the first sealing ring 5 and the second sealing ring 6 are placed in the connecting pipe 26 and the hollow pipe 35, the first sealing cover 2 and the second sealing cover 3 are screwed down, the first sealing ring 5 and the second sealing ring 6 are extruded in the two pipes and on the surface of the wire harness 4, the first sealing ring 5 and the second sealing ring 6 are tightly attached to the wire harness 4, and water vapor is prevented from entering the cabinet body 1.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a novel looped netowrk cabinet which characterized in that: the cabinet comprises a cabinet body (1), wherein a wiring harness hole is formed in the cabinet body (1), a wiring harness (4) is inserted in the wiring harness hole, and after the wiring harness (4) is connected with the cabinet body (1), the wiring harness (4) is hermetically connected into the cabinet body (1) through a first sealing cover (2) and a second sealing cover (3);

a first sealing ring (5) and a second sealing ring (6) are clamped on the wire harness (4), and the first sealing ring (5) and the second sealing ring (6) are tightly extruded on the outer surface of the wire harness (4) through the threaded fit of a first sealing cover (2) and a second sealing cover (3);

the first sealing cover (2) is positioned on one side face of the cabinet body (1), the second sealing cover (3) is positioned on the other side face of the cabinet body (1), and rubber gaskets (8) are arranged on the two side faces of the cabinet body (1) to realize the sealing connection of the first sealing cover (2) and the second sealing cover (3) with the cabinet body (1);

the inside of first sealed lid (2) is equipped with hollow interlayer (25), just interlayer (25) are connected the intercommunication through setting up discharge gate (21) and air inlet (23) on first sealed lid (2) and the external world, just the inside of interlayer (25) is filled water-absorbing material.

2. The new ring main unit as claimed in claim 1, wherein: a circular tube (24) is arranged at the center of the circle of the first sealing cover (2), a connecting tube (26) is arranged below the first sealing cover (2), and an external thread (22) is arranged on the outer surface of the connecting tube (26);

the second sealing cover (3) is provided with a hollow pipe (35), an internal thread (31) matched with the external thread (22) is arranged in the hollow pipe (35), and the second sealing cover (3) is also provided with a through pipe (33) concentric with and in the same diameter as the circular pipe (24).

3. The new ring main unit as claimed in claim 2, wherein: the round pipe (24) and the through pipe (33) are used for guiding the wiring harness (4) to penetrate into the cabinet body (1).

4. The new ring main unit as claimed in claim 3, wherein: the inner portion of the connecting pipe (26) is used for accommodating the first sealing ring (5), the inner portion of the hollow pipe (35) is used for accommodating the second sealing ring (6), and the round pipe (24) and the penetrating pipe (33) are used for extruding the first sealing ring (5) and the second sealing ring (6) when the connecting pipe (26) is in threaded connection with the hollow pipe (35).

5. The new ring main unit as claimed in claim 4, wherein: the number of the rubber gaskets (8) is two, and the rubber gaskets (8) are respectively sleeved on the outer side surfaces of the connecting pipe (26) and the hollow pipe (35) through a groove arranged on the height surface of the rubber gaskets.

6. The new ring main unit according to any one of claims 1 to 4, wherein: the first sealing ring (5) and the second sealing ring (6) are both made of rubber materials, and the cross sections of the first sealing ring and the second sealing ring are trapezoidal; first sealing washer (5) with second sealing washer (6) are equipped with opening (7) along the direction of height of cross section, opening (7) are used for with pencil (4) guide to the inside of first sealing washer (5) and second sealing washer (6), and with the surface of pencil (4) closely laminates.