CN214204603U

CN214204603U - CHA1-40.5kV series crutch type contact box

Info

Publication number: CN214204603U
Application number: CN202022766531.5U
Authority: CN
Inventors: 严廷壹
Original assignee: Zhejiang Jiangshan Huaan Electric Co ltd
Current assignee: Zhejiang Jiangshan Huaan Electric Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-09-14
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a CHA1-40.5kV series crutch type contact box, which comprises a contact box, wherein the inside of the contact box is fixedly connected with the outside of a notch crutch type, the contact box consists of a connecting flange, mounting screws, an insert, an insulating sleeve, an umbrella skirt and epoxy resin, the middle part of the contact box is provided with the connecting flange, the front surface and the back surface of the connecting flange are both provided with the penetrating mounting screws, the upper end and the lower end of the connecting flange are both provided with the penetrating mounting screws, the contact box is provided with the insert, the left end and the right end of the connecting flange are both fixedly connected with the insulating sleeve, the outer surface of the insulating sleeve is provided with the umbrella skirt, and the outer side of the insulating sleeve and the inner side of the umbrella skirt are both filled with the epoxy resin; the utility model discloses in, cabinet body width 1400mm, rated current is less than or equal to 1250A, or draw out row width 60mm double and below, under the condition of cancellation insulating barrier, satisfy safe distance more than or equal to 300 mm's requirement, and ensure the more safe and reliable operation of cubical switchboard.

Description

CHA1-40.5kV series crutch type contact box

Technical Field

The utility model relates to the technical field of power equipment accessories, in particular to a CHA1-40.5kV series crutch-shaped contact box.

Background

The insulated contact box is formed by adopting an epoxy resin automatic pressure gel process (APG process for short), is used in various 40.5kV handcart type switch cabinets, plays roles of insulating isolation and connection transition, and is used for solving the problem that the safe distance of a conductive bar led out from the contact box of a KYN 61-40.5kV medium-voltage switch cabinet is less than 300mm, and the method of increasing the width of the cabinet body or installing an insulating partition plate and the like is often adopted, so that the following defects are caused: firstly, when the aging of the insulating partition plates is accelerated along with the lapse of time, the safety distance between the busbars is insufficient; secondly, when the environment humidity of the switch cabinet is high (such as seashore) the insulation performance of the insulation partition plate is reduced, so that the safety distance between the busbars is insufficient; thirdly, under the unchangeable circumstances of cabinet body width (1400mm), when satisfying the safe distance requirement, can effectively reduce composite insulation board's use, reduce the potential safety hazard because of insulating material's ageing brings, and traditional contact box is relatively poor to the fixed limit function of the generating line of putting into, inconvenient single fixes the generating line of different quantity and different diameters in putting into the contact box, thereby make the generating line rock at will in the contact box easily, the friction between generating line and the contact box inner wall has been increased, the possibility that the generating line received wearing and tearing has been improved, thereby make the generating line damage more easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a CHA1-40.5kV series turn type contact box has reached under the unchangeable circumstances of cabinet body width (1400mm), when satisfying the safe distance requirement, can effectively reduce the use of composite insulation board, reduces because of the electric breakdown hidden danger that insulating material's ageing brought, has improved the spacing fixed to the generating line, has reduced the possibility that the generating line damaged.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the CHA1-40.5kV series corner-type contact box comprises a contact box body, wherein the interior of the contact box body is fixedly connected with the outside of a notch corner, the contact box body is composed of a connecting flange, mounting screw holes, an insert, an insulating sleeve, an umbrella skirt and epoxy resin, the connecting flange is arranged in the middle of the contact box body, the mounting screw holes which are penetrated through are formed in the front face and the back face of the connecting flange, the mounting screw holes which are penetrated through are formed in the upper end and the lower end of the connecting flange, the insert is arranged on the contact box body, the insulating sleeve is fixedly connected to the left end and the right end of the connecting flange, the umbrella skirt is arranged on the outer surface of the insulating sleeve, the epoxy resin is filled in the outer side of the insulating sleeve and the inner side of the umbrella skirt, and a.

As a further description of the above technical solution:

the outlet of the contact box is provided with a notch, and the size of the notch is 125x180 mm.

As a further description of the above technical solution:

the insulating cover is a cylindrical ring cover, the cross sections of the insulating cover and the umbrella skirt are circular, the outer side of the insert is provided with a mounting hole, and the size of the mounting hole is 240mm multiplied by 533 mm.

As a further description of the above technical solution:

the two notches are respectively a left notch and a right notch, and the two notches are respectively positioned on the left side and the right side of the contact box and the switch cabinet.

As a further description of the above technical solution:

stop gear includes the slide bar, the slide bar cover is established in the slide bar, the slide bar joint is in the front of contact box body, the front end fixedly connected with first in command of slide bar, the surface cover of slide bar is equipped with the spring, fixed connection is respectively at a side of slide bar and the surface of slide bar at the both ends of spring, the back joint of contact box inner wall has the bearing, the bearing endotheca is equipped with the pivot, the rear end fixedly connected with second in command of pivot, the front end fixedly connected with screw thread post of pivot, the surface threaded connection of screw thread post has the screw cap, the equal fixedly connected with connecting rod of the upper and lower both sides face of screw cap.

As a further description of the above technical solution:

the equal fixedly connected with splint of looks remote site of connecting rod and slide bar, the equal fixedly connected with insulation pad of opposite face of two splint, the back of rear side splint passes through the back fixed connection of telescopic link and contact box inner wall.

Compared with the prior art, the beneficial effects of the utility model are that:

the CHA1-40.5kV series crutch type contact box aims to overcome the defects of the prior art, and provides a CHA1-40.5kV series crutch type contact box which is simple in structure, low in cost and high in reliability. The contact box is provided with a notch inside, so that multiple advantages can be realized.

1. The utility model discloses in, cabinet body width 1400mm, rated current is less than or equal to 1250A, or draw out row width 60mm double and below, under the condition of cancellation insulating barrier, satisfy safe distance more than or equal to 300 mm's requirement, and ensure the more safe and reliable operation of cubical switchboard.

2. The utility model discloses in, a CHA1-40.5kV series turn type contact box has alleviateed product weight, has reduced manufacturing cost and maintenance cost and has improved production and installation effectiveness under the prerequisite of the reliability of ensureing dielectric strength, partial discharge capacity index and performance.

3, in the utility model, this CHA1-40.5kV series turn type contact box can save 10% copper bar use amount about every cupboard when the installation, and very big easy to assemble use moreover can stop the incident that the cubical switchboard operation arouses, improves safe operation nature.

4. The utility model discloses in, through setting up stop gear, the rotation that utilizes the pivot can make the screw thread post rotate, thereby make the screw cap drive rear side splint through the connecting rod and carry out the back-and-forth movement, thereby make things convenient for people to change spacing scope according to the quantity and the diameter of putting into the generating line, the pulling of rethread slide bar can make front side splint move forward, make things convenient for people to put into the contact box with the generating line, then loosen the slide bar again, the elasticity that utilizes the spring can make the slide bar drive front side splint rearward movement, thereby realize pressing from both sides tight fixed to the generating line, avoided the generating line to rock at will in the contact box, the friction between generating line and the contact box inner wall has been reduced, the generating line has received the possibility of wearing and tearing, the damage of generating line has been avoided.

Drawings

Fig. 1 is a schematic structural view of a front view section of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic side view of the middle limiting mechanism of the present invention.

In the figure: 1. a connecting flange; 2. mounting a screw hole; 3. an insert; 4. an insulating sleeve; 5. an umbrella skirt; 6. an epoxy resin; 7. a notch; 8. a limiting mechanism; 81. a slide bar; 82. a spring; 83. a splint; 84. an insulating pad; 85. a telescopic rod; 86. a threaded post; 87. a rotating shaft; 88. a threaded cap; 89. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a CHA1-40.5kV series crutch-type contact box comprises a contact box, wherein a notch 7 is formed in the outlet of the contact box, the size of the notch 7 is 125x180mm, the notch 7 is used for connecting a busbar led down in the contact box with a mounting busbar below the notch 7, and the notch 7 is formed in the left side or the right side of the outlet of the contact box;

the inside of the contact box is connected with the outside of the notch 7 in a crutch shape, the contact box consists of a connecting flange 1, an installation screw hole 2, an insert 3, an insulating sleeve 4, an umbrella skirt 5 and epoxy resin 6, the middle part of the contact box is provided with a connecting flange 1, the front surface and the back surface of the connecting flange 1 are both provided with a through mounting screw hole 2, the upper end and the lower end of the connecting flange 1 are both provided with a through mounting screw hole 2, the contact box is provided with an insert 3, the left end and the right end of the connecting flange 1 are both fixedly connected with insulating sleeves 4, the insulating sleeves 4 are cylindrical sleeves, the side views of the insulating sleeve 4 and the umbrella skirt 5 are both circular, the size of the installation screw hole of the contact box is 240mm multiplied by 533mm, by arranging the insulating sleeve 4, the insulating sleeve 4 can insulate the placed bus, so that the bus is protected;

an umbrella skirt 5 is arranged on the outer surface of the insulating sleeve 4, epoxy resin 6 is filled in the outer side of the insulating sleeve 4 and the inner side of the umbrella skirt 5, notches 7 are formed in the left side or the right side of an outlet of the contact box, the number of the notches 7 is two, the two notches 7 are respectively a left notch 7 and a right notch 7, the two notches 7 are respectively the left side and the right side of the contact box and the switch cabinet, and the notches 7 formed in the left side or the right side are used by arranging the notches 7, so that the contact box can be conveniently installed; the inner wall of the contact box is provided with a limiting mechanism 8, the limiting mechanism 8 comprises a sliding rod 81, the sliding rod 81 is sleeved in a sliding sleeve, the sliding sleeve is clamped on the front surface of the contact box body, the front end of the sliding rod 81 is fixedly connected with a first handle, the outer surface of the sliding rod 81 is sleeved with a spring 82, two ends of the spring 82 are respectively and fixedly connected with one side surface of the sliding sleeve and the outer surface of the sliding rod 81, the back surface of the inner wall of the contact box is clamped with a bearing, the bearing is sleeved with a rotating shaft 87, the rear end of the rotating shaft 87 is fixedly connected with a second handle, the front end of the rotating shaft 87 is fixedly connected with a threaded column 86, the outer surface of the threaded column 86 is in threaded connection with a threaded cap 88, the upper side surface and the lower side surface of the threaded cap 88 are respectively and fixedly connected with a connecting rod 89, the threaded column 86 can rotate by utilizing the rotation of the rotating shaft 87, so that the threaded cap 88 drives a rear side clamping plate 83 to move back and forth through the connecting rod 89, thereby facilitating people to change the limiting range according to the number and the diameter of the placed bus, the front side clamping plate 83 can move forwards by pulling the sliding rod 81, so that a bus can be conveniently placed into the contact box by people, then the sliding rod 81 is loosened, the sliding rod 81 can drive the front side clamping plate 83 to move backwards by utilizing the elastic force of the spring 82, the bus is clamped and fixed, the bus is prevented from shaking randomly in the contact box, the friction between the bus and the inner wall of the contact box is reduced, the possibility of abrasion of the bus is reduced, the bus is prevented from being damaged, the opposite ends of the connecting rod 89 and the sliding rod 81 are fixedly connected with the clamping plates 83, the opposite surfaces of the two clamping plates 83 are fixedly connected with the insulating pads 84, the back surface of the back side clamping plate 83 is fixedly connected with the back surface of the inner wall of the contact box through the telescopic rods 85, the insulating pads 84 are arranged, the clamped bus can be protected by the insulating pads 84, and the bus is kept in an insulating state with the outside, the normal use of the bus is ensured.

The working principle is as follows: during the use, with contact box steady mounting on the cubical switchboard earlier, utilize rotation of pivot 87 to make screw thread post 86 rotate, thereby make screw cap 88 drive rear side splint 83 through connecting rod 89 and carry out the back-and-forth movement, thereby make things convenient for people to change spacing scope according to the quantity and the diameter of putting into the generating line, rethread slide bar 81's pulling can make front side splint 83 forward motion, insert the generating line again in breach 7, then loosen slide bar 81, the elasticity that utilizes spring 82 makes slide bar 81 drive front side splint 83 rearward motion, thereby the realization is fixed to the clamp of generating line, at last will arrange that the installation mother below is arranged and is connected.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A CHA1-40.5kV series crutch type contact box comprises a contact box, and is characterized in that: the inside of the contact box is fixedly connected with the outside of the crutch-shaped notch (7), the contact box consists of a connecting flange (1), an installation screw hole (2), an embedded piece (3), an insulating sleeve (4), an umbrella skirt (5) and epoxy resin (6), a connecting flange (1) is arranged in the middle of the contact box, the front surface and the back surface of the connecting flange (1) are both provided with a through mounting screw hole (2), the upper end and the lower end of the connecting flange (1) are both provided with a through mounting screw hole (2), the contact box is provided with an insert (3), the left end and the right end of the connecting flange (1) are fixedly connected with insulating sleeves (4), the outer surface of the insulating sleeve (4) is provided with an umbrella skirt (5), the outer side of the insulating sleeve (4) and the inner side of the umbrella skirt (5) are both filled with epoxy resin (6), and the inner wall of the contact box is provided with a limiting mechanism (8).

2. The CHA1-40.5kV series crutch-type contact box of claim 1, wherein: a notch (7) is formed in the outlet of the contact box, and the size of the notch (7) is 125x180 mm.

3. The CHA1-40.5kV series crutch-type contact box of claim 1, wherein: the insulating sleeve (4) is a cylindrical ring sleeve, the cross sections of the insulating sleeve (4) and the umbrella skirt (5) are circular, the outer side of the insert (3) is provided with a mounting hole, and the size of the mounting hole is 240mm multiplied by 533 mm.

4. The CHA1-40.5kV series crutch-type contact box of claim 1, wherein: the two notches (7) are respectively a left opening notch (7) and a right opening notch (7), and the two notches (7) are respectively positioned on the left side and the right side of the contact box and the switch cabinet.

5. The CHA1-40.5kV series crutch-type contact box of claim 1, wherein: stop gear (8) include slide bar (81), slide bar (81) cover is established in the sliding sleeve, the sliding sleeve joint is in the front of contact box body, the front end fixedly connected with first in command of slide bar (81), the surface cover of slide bar (81) is equipped with spring (82), the both ends difference fixed connection of spring (82) is at the side of sliding sleeve and the surface of slide bar (81), the back joint of contact box inner wall has the bearing, pivot (87) are equipped with to the bearing endotheca, the rear end fixedly connected with second handle of pivot (87), the front end fixedly connected with screw thread post (86) of pivot (87), the surface threaded connection of screw thread post (86) has screw cap (88), the equal fixedly connected with connecting rod (89) of the upper and lower both sides face of screw cap (88).

6. The CHA1-40.5kV series crutch-type contact box of claim 5, wherein: the equal fixedly connected with splint (83) of the looks remote site of connecting rod (89) and slide bar (81), the equal fixedly connected with insulating pad (84) of opposite face of two splint (83), the back of rear side splint (83) passes through telescopic link (85) and the back fixed connection of contact box inner wall.