CN219351262U

CN219351262U - Cable junction box for ring main unit

Info

Publication number: CN219351262U
Application number: CN202320398626.7U
Authority: CN
Inventors: 强高生; 吴建国
Original assignee: Wuxi Mutual Cloud Power Equipment Co ltd
Current assignee: Wuxi Mutual Cloud Power Equipment Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-07-14
Anticipated expiration: 2033-03-07

Abstract

The utility model discloses a cable junction box for a ring main unit, which relates to the technical field of cable junction boxes and comprises a box body and a box cover which is covered on the top of the box body, wherein exhaust fans are fixedly embedded at the lower ends of two sides of the box body, a plurality of radiating holes are formed in the side wall of the box body, vent holes are formed in the two ends of the top of the box cover, a cover plate is covered on the outer side of the vent holes, a supporting plate is fixedly arranged at the upper end of the inner wall of the box body, an electric cylinder is fixedly arranged at the top of the supporting plate, a supporting frame is fixedly arranged at the tail end of a piston rod of the electric cylinder, the two ends of the top of the supporting frame penetrate out of the box cover and are fixedly connected with the two cover plates, and a dustproof assembly for dust prevention is arranged at the upper end of the inside of the box cover. The cable distributing box provided by the utility model can quickly discharge hot air in the box body through opening the vent hole at the top of the box body in the cable running process.

Description

Cable junction box for ring main unit

Technical Field

The utility model relates to the technical field of cable distribution boxes, in particular to a cable distribution box for a ring main unit.

Background

The ring main unit is a group of high-voltage switch equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into electric equipment of an assembled interval ring main power supply unit, and cables are required to be connected and placed by virtue of a junction box in the use process.

The prior patent number CN208226538U discloses a cable distribution box, convection can be formed in the box body of the distribution box, heat generated by cables and components in the box body can be effectively discharged, and the cable distribution box has good heat dissipation effect; the left side wall and the right side wall of the box body are provided with vent holes, so that the heat dissipation effect is further improved. The vent holes and the air inlet fan are provided with the filter screen, so that dust outside the box body can be prevented from entering the box body, and the dustproof effect is achieved. The upper parts of the air inlet fan, the air outlet fan and the vent holes are provided with the rain-proof plate, so that the rain-proof effect is achieved.

But above-mentioned branch box is in the cable operation heating process in inside, and its heat heats the inside air of box for the hot air come-up reaches the inside upper end of box, just carries out the circulation of air through the air discharge fan and can not effectually carry out quick discharge with the hot air.

Disclosure of Invention

The utility model is provided in view of the problems of the cable distribution box for the prior ring main unit.

Therefore, the utility model aims to provide the cable distribution box for the ring main unit, which solves the problem that hot air cannot be rapidly discharged when a cable in the distribution box generates large heat during use.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a cable junction box for looped netowrk cabinet, includes box and lid that covers the top of box, the exhaust fan has all been fixedly inlayed to the both sides lower extreme of box, a plurality of louvres have been seted up to the lateral wall of box, and the exhaust fan can be in the junction box use the in-process to the inside air of box quick ventilation, avoids there being more hot air in the box as far as possible;

the two ends of the top of the box cover are respectively provided with a vent hole, the outer side of each vent hole is covered with a cover plate, the upper end of the inner wall of the box body is fixedly provided with a support plate, the top of each support plate is fixedly provided with an electric cylinder, the tail end of a piston rod of each electric cylinder is fixedly provided with a support frame, the two ends of the top of each support frame penetrate out of the box cover and are fixedly connected with the two cover plates, the electric cylinders can drive the support frames to move upwards, the cover plates are opened from the upper ends of the vent holes, and the vent holes can be opened to enable hot air to flow rapidly;

the inside upper end of case lid is equipped with the dustproof subassembly that is used for dirt-proof for the filtration purification of dust is carried out to the air that gets into the box inside.

Preferably, the dustproof assembly comprises a positioning rod and a filter cover, a plurality of filter holes are formed in the filter cover, the filter cover is covered with the lower end of the vent hole, a vertical rod is fixedly arranged at the bottom of the filter cover, a telescopic rod provided with a spring in a sleeved mode is fixedly connected with the positioning rod, a positioning hole matched with the positioning rod for plugging is formed in the support plate, a clamping mechanism used for limiting the position of the positioning rod is arranged on the rod wall of the positioning rod, the filter cover is arranged, air entering the inside of the box can be effectively filtered, and meanwhile the filter cover can be separated from the inner wall of the box cover through the matching of the positioning rod and the spring, so that the filter cover can be conveniently cleaned in the box.

Preferably, the clamping mechanism comprises a clamping plate, a through groove is formed in the rod wall of the positioning rod, a supporting rod is fixedly arranged in the groove wall of the through groove in a penetrating mode, the clamping plate is rotatably sleeved on the outer side of the supporting rod and penetrates out of the positioning rod to be connected with the supporting plate in a contact mode, a torsion spring is sleeved on the rod wall of the supporting rod, two ends of the torsion spring are respectively fixedly connected with the supporting rod and the clamping plate, so that the clamping plate can rotate and rebounds to the original position under torsion of the torsion spring.

Preferably, the lateral wall in logical groove has been seted up cooperation cardboard pivoted and has been rotated the groove, it sets up with logical groove intercommunication to rotate the groove, the cardboard is connected with the inner wall top contact in groove to rotate, through the setting in groove, and the cardboard can be stable rotate to logical inslot, guarantees the level setting under the restriction at groove inner wall top simultaneously, confirms the position of locating lever.

Further, be equipped with the sealing washer that is used for sealedly between the top of apron and case lid, sealing washer and the bottom fixed connection of apron to contact with the top of case lid and be connected, through the setting of sealing washer, guarantee the connection leakproofness between apron and the case lid.

Preferably, the electric cylinder is electrically connected with the exhaust fan, and the electric connection mode adopts parallel connection, so that the exhaust fan and the electric cylinder work simultaneously.

In the technical scheme, the utility model has the technical effects and advantages that:

1. according to the utility model, through the box body, the box cover, the exhaust fan, the vent holes, the supporting plate, the electric cylinders, the supporting frames, the cover plates and the sealing rings, when cables in the junction box work and a large amount of heat is generated in the junction box, the exhaust fan is started, and the electric cylinders push the two cover plates through the supporting frames at the same time, so that the vent holes are opened, and hot air at the upper end in the box body can be rapidly discharged.

2. According to the utility model, the dust-proof assembly, the positioning rod, the through groove, the positioning hole, the supporting plate and the clamping mechanism are arranged, so that the position of the filter cover can be fixed through the position determination of the positioning rod, and the air entering the box body from the outside is filtered in the air circulation process when the vent hole is opened, so that dust in the outside air is prevented from entering the box body as much as possible.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2 in accordance with the present utility model;

fig. 4 is an enlarged schematic view of the portion B of fig. 3 according to the present utility model.

Reference numerals illustrate:

1. a case; 2. a case cover; 3. an exhaust fan; 4. a cover plate; 5. a support plate; 6. an electric cylinder; 7. a support frame; 8. a positioning rod; 9. a filter cover; 10. a vertical rod; 11. a spring; 12. a telescopic rod; 13. a clamping plate; 14. a support rod; 15. a torsion spring; 16. and (3) sealing rings.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a cable distribution box for a ring main unit.

The utility model provides a cable distributing box for a ring main unit, as shown in figures 1-4, which comprises a box body 1 and a box cover 2 which is covered on the top of the box body 1, and is characterized in that exhaust fans 3 are fixedly embedded at the lower ends of two sides of the box body 1, and a plurality of heat dissipation holes are formed in the side wall of the box body 1;

the ventilation holes have all been seted up at the top both ends of case lid 2, and the outside lid of ventilation hole is equipped with apron 4, and the inner wall upper end of box 1 is fixed to be equipped with backup pad 5, and the top of backup pad 5 is fixed to be equipped with electric jar 6, and the piston rod end fixing of electric jar 6 is equipped with support frame 7, and the top both ends of support frame 7 all wear out case lid 2 and with two apron 4 fixed connection.

When the cable inside the junction box is connected and works, the cable can generate more heat, so that the temperature inside the box body 1 rises, the exhaust fan 3 starts to work, the air inside and outside the box body 1 is subjected to rapid heat exchange, meanwhile, the electric cylinder 6 is driven to work, the support frame 7 is pushed, the upper end of the support frame 7 pushes the cover plate 4, the cover plate 4 is far away from the vent hole and the vent hole is opened, and the hot air inside the box body 1 can flow out through the vent hole and is subjected to rapid heat exchange circulation with the outside air.

In order to prevent dust in the outside air from entering the box body 1 after the vent holes are opened, as shown in fig. 2-4, the upper end of the inside of the box cover 2 is provided with a dustproof component for dust prevention, the dustproof component comprises a positioning rod 8 and a filter cover 9, a plurality of filter holes are formed in the filter cover 9 and cover the lower end of the vent holes, a vertical rod 10 is fixedly arranged at the bottom of the filter cover 9, the bottom of the vertical rod 10 is fixedly connected with the positioning rod 8 through a telescopic rod 12 sleeved with a spring 11, and the inside of the supporting plate 5 is provided with a positioning hole matched with the positioning rod 8 in a plugging manner.

Before the junction box 1 is used, the filter cover 9 is arranged at the upper end of the inside of the box body 1 and is connected with the positioning rod 8, so that the positioning rod 8 penetrates into the supporting plate, the filter cover 9 is pushed by the extrusion of the spring 11 to be in close contact with the inner wall of the box cover 2, and the filter cover 9 is matched with the filter holes in the filter cover 9, so that dust can be filtered and purified on air entering the inside of the box body 1 in the air exchange process, and impurities in the outside air are prevented from entering the inside of the box body 1 to affect the stable use of the cable.

And in order to fix the position of locating lever 8 and filter mantle 9, as shown in fig. 3-4, the lever wall of locating lever 8 is equipped with the joint mechanism that is used for restricting the position of locating lever 8, joint mechanism includes cardboard 13, logical groove has been seted up to the lever wall of locating lever 8, the inside fixed bracing piece 14 that wears to be equipped with of cell wall of logical groove, cardboard 13 rotates the cover and locates the outside of bracing piece 14, and wear out locating lever 8 and backup pad 5 contact connection, the lever wall cover of bracing piece 14 is equipped with torsional spring 15, the both ends of torsional spring 15 respectively with bracing piece 14 and cardboard 13 fixed connection, the pivoted groove of cooperation cardboard 13 pivoted has been seted up to the lateral wall of logical groove, the pivoted groove sets up with logical groove intercommunication, cardboard 13 and the inner wall top contact connection of pivoted groove.

When the locating rod 8 supports, the locating rod 8 is contacted with the top of the inner wall of the rotating groove through the clamping plate 13, the locating rod 8 is located under the contact cooperation of the clamping plate 13 and the top of the supporting plate 5, and when the filter cover 9 needs to be cleaned, the locating rod 8 can be moved to extrude the spring 11, so that the clamping plate 13 is slowly far away from the supporting plate 5 and enters the rotating groove under the torsion of the torsion spring 15, and at the moment, the filter cover 9 can be moved to the top of the supporting plate 5, the inner wall of the filter cover 9 can be cleaned quickly, and the continuous stability of the filtering work of the filter cover 9 is ensured.

In order to ensure the sealing of the connection between the cover plate 4 and the top of the case cover 5, as shown in fig. 1 to 3, a sealing ring 16 for sealing is provided between the cover plate 4 and the top of the case cover 2, and the sealing ring 16 is fixedly connected to the bottom of the cover plate 4 and is in contact connection with the top of the case cover 2.

By connecting the sealing ring 16 with the cover plate 4 and the case cover 2, a connecting gap between the cover plate 4 and the case cover 2 is avoided as much as possible, thereby improving the sealing performance of the cover plate 4.

Finally, in order to enable the electric cylinder 6 to stably operate, as shown in fig. 2, the electric cylinder 6 and the exhaust fan 3 are electrically connected, and the electric connection mode adopts parallel connection.

The exhaust fan 3 is started and the electric cylinders 6 work along, and the electric cylinders 6 are connected in parallel, so that when the exhaust fan 3 is damaged, the electric cylinders 6 can still work, and ventilation and heat dissipation work is continuously carried out.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The cable distribution box for the ring main unit comprises a box body (1) and a box cover (2) which is covered on the top of the box body (1), and is characterized in that exhaust fans (3) are fixedly embedded at the lower ends of two sides of the box body (1), and a plurality of radiating holes are formed in the side wall of the box body (1);

the novel electric box is characterized in that vent holes are formed in two ends of the top of the box cover (2), a cover plate (4) is arranged on the outer side cover of the vent holes, a supporting plate (5) is fixedly arranged at the upper end of the inner wall of the box body (1), an electric cylinder (6) is fixedly arranged at the top of the supporting plate (5), a supporting frame (7) is fixedly arranged at the tail end of a piston rod of the electric cylinder (6), and two ends of the top of the supporting frame (7) penetrate through the box cover (2) and are fixedly connected with the two cover plates (4);

the upper end of the inside of the box cover (2) is provided with a dustproof component for dust prevention.

2. The cable junction box for a ring main unit according to claim 1, wherein the dustproof component comprises a positioning rod (8) and a filter cover (9), a plurality of filter holes are formed in the filter cover (9), the filter cover is covered with the lower end of the vent hole, a vertical rod (10) is fixedly arranged at the bottom of the filter cover (9), the bottom of the vertical rod (10) is fixedly connected with the positioning rod (8) through a telescopic rod (12) sleeved with a spring (11), a positioning hole matched with the positioning rod (8) in a plugging manner is formed in the supporting plate (5), and a clamping mechanism used for limiting the position of the positioning rod (8) is arranged on the rod wall of the positioning rod (8).

3. The cable junction box for a ring main unit according to claim 2, wherein the clamping mechanism comprises a clamping plate (13), a through groove is formed in a rod wall of the positioning rod (8), a supporting rod (14) is fixedly arranged in the groove wall of the through groove in a penetrating mode, the clamping plate (13) is rotatably sleeved on the outer side of the supporting rod (14) and penetrates out of the positioning rod (8) to be in contact connection with the supporting plate (5), a torsion spring (15) is sleeved on the rod wall of the supporting rod (14), and two ends of the torsion spring (15) are fixedly connected with the supporting rod (14) and the clamping plate (13) respectively.

4. A cable distributing box for a ring main unit according to claim 3, wherein a rotating groove matched with the rotation of the clamping plate (13) is formed in the side wall of the through groove, the rotating groove is communicated with the through groove, and the clamping plate (13) is in contact connection with the top of the inner wall of the rotating groove.

5. The cable distributing box for the ring main unit according to claim 1, wherein a sealing ring (16) for sealing is arranged between the cover plate (4) and the top of the box cover (2), and the sealing ring (16) is fixedly connected with the bottom of the cover plate (4) and is in contact connection with the top of the box cover (2).

6. The cable distribution box for the ring main unit according to claim 1, wherein the electric cylinder (6) and the exhaust fan (3) are electrically connected, and the electric connection mode adopts parallel connection.