CN214254241U

CN214254241U - Indoor high-voltage isolating switch

Info

Publication number: CN214254241U
Application number: CN202120652216.1U
Authority: CN
Inventors: 童志俭
Original assignee: Zhejiang Yueling Electric Co ltd
Current assignee: Zhejiang Yueling Electric Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-09-21
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses an indoor high voltage isolator, its technical scheme main points are: the device comprises an installation underframe and two insulators, wherein a groove is formed in a static contact, a limiting device is arranged in the groove and consists of a reset spring and a limiting block, one end of the reset spring is fixedly arranged in the groove, the other end of the reset spring is fixedly connected with the limiting block, two knife boards are provided with a width adjusting mechanism at positions close to a moving contact, the width adjusting mechanism comprises a stud bolt, the stud bolt penetrates through the two knife boards, a compression spring is arranged at the outer end of the stud bolt, which extends out of the knife boards, a limiting plate is fixedly arranged at the end part of the stud bolt, one end of the compression spring is abutted to the limiting plate, an adjusting nut is arranged at the end part of the stud bolt, and a handle is sleeved outside the adjusting nut; the utility model provides a current isolation knife tackle spare take place easily behind separating brake or combined floodgate become flexible and two the unable problem of adjusting, being difficult to the regulation of interval between the cutting board.

Description

Indoor high-voltage isolating switch

Technical Field

The utility model belongs to the technical field of the isolator technique and specifically relates to indoor high voltage isolator.

Background

The isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; when the switch is closed, the switch equipment capable of bearing the current under the normal loop condition and the current under the abnormal condition within the specified time is generally used as a high-voltage isolating switch, namely an isolating switch with the rated voltage of more than 1kV, the working principle and the structure of the switch equipment are simple, but the switch equipment has large use amount and high working reliability requirement, and has great influence on the design, the establishment and the safe operation of a substation and a power plant.

After the existing isolating switch is switched off or switched on, because an isolating knife assembly has no self-locking function, the knife board may have a free falling phenomenon during switching off, and during switching on, if equipment is inverted, a contact and the knife board may be separated, so that the stability of switching on is influenced; simultaneously, the interval between two blocks of cutting boards on the current isolation knife tackle spare is most unable to be adjusted, perhaps the interval between two blocks of cutting boards can be adjusted, however, because adjusting nut is less, is difficult to adjust it.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing an indoor high-voltage isolator to solve the current isolation knife tackle spare that mentions in the background art and take place easily after separating brake or combined floodgate become flexible and two problem that the interval between the cutting board can't be adjusted, is difficult to the regulation.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an indoor high-voltage isolating switch comprises an installation underframe, a first insulator and a second insulator, wherein the upper ends of the first insulator and the second insulator are respectively and fixedly provided with a static contact and a moving contact, the static contact is connected with an isolating knife assembly through a bolt shaft pin, an insulating pull rod is arranged between the static contact and the moving contact, one end of the insulating pull rod is connected with the isolating knife assembly, the isolating knife assembly consists of two knife boards which are arranged in parallel, the other end of the insulating pull rod is connected with a transmission mechanism, the front end and the rear end of the static contact are respectively provided with a groove, a limiting device is arranged inside the groove and consists of a reset spring and a limiting block, one end of the reset spring is fixedly arranged inside the groove, and the other end of the reset spring is fixedly connected with the limiting block, two the cutting board is being close to the position department of moving contact is provided with width adjustment mechanism, width adjustment mechanism includes stud, stud runs through two the cutting board, stud stretches out the outer end of cutting board is provided with compression spring, stud's end fixing is provided with the limiting plate, compression spring's one end with the limiting plate is inconsistent, stud's tip is provided with adjusting nut, adjusting nut's outside cover is equipped with the handle.

Furthermore, the transmission mechanism is composed of a connecting rod and a rotating shaft, one end of the connecting rod is movably connected with the insulating pull rod, and the other end of the connecting rod is fixedly connected with the rotating shaft.

By adopting the technical scheme, an operator can change the position of the insulating pull rod by rotating the rotating shaft, so that the switching-on and switching-off work is completed.

Furthermore, the head of the limiting block is hemispherical.

Through adopting above-mentioned technical scheme, the head of stopper is the hemisphere and is favorable to the cutting board when extruding the stopper, and the stopper can retract to the inside of recess.

Furthermore, the cross section of the groove is circular, and the radius of the limiting block is smaller than that of the groove.

Through adopting above-mentioned technical scheme, guarantee that the stopper can normally remove in the inside of recess.

Further, the stud bolt is in threaded connection with the adjusting nut.

By adopting the technical scheme, an operator can change the distance between the two cutter plates by rotating the position of the adjusting nut on the stud bolt.

Furthermore, an insulating anti-skid rubber pad is arranged on the handle.

Through adopting above-mentioned technical scheme, operating personnel can be through rotating the handle and control adjusting nut.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a, through set up stop device on quiet contact, after operating personnel accomplished combined floodgate work, the stopper was located the top of keeping apart the knife tackle spare this moment, even equipment is invertd, can not take place the separation yet between contact and the cutting board, after accomplishing the separating brake work, the stopper was located the right side of keeping apart the knife tackle spare this moment, can prevent to keep apart the knife tackle spare and take place free fall because of self gravity.

2. The utility model discloses a, through being provided with width adjustment mechanism in the position department of cutting board being close to the moving contact, when the width between the cutting board was adjusted to needs, operating personnel can rotate the handle and change the position of adjusting nut on stud to change the interval between two cutting boards, the handle that sets up on adjusting nut, very is favorable to operating personnel to adjust it.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the device of the present invention, such as the static contact, the moving contact, the isolation knife assembly, etc.;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

In the figure: 1. installing a bottom frame; 2. a first insulator; 3. a second insulator; 4. static contact; 401. a groove; 5. a moving contact; 6. an isolation knife assembly; 601. a cutting board; 7. an insulating pull rod; 8. a transmission mechanism; 801. a connecting rod; 802. a rotating shaft; 9. a limiting device; 10. a return spring; 11. a limiting block; 12. a width adjustment mechanism; 1201. a stud bolt; 1202. a compression spring; 1203. a limiting plate; 1204. adjusting the nut; 1205. a handle.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 4, an indoor high-voltage isolating switch comprises an installation underframe 1, a first insulator 2 and a second insulator 3, wherein the upper ends of the first insulator 2 and the second insulator 3 are respectively and fixedly provided with a fixed contact 4 and a movable contact 5, the fixed contact 4 is connected with an isolating knife assembly 6 through a bolt shaft pin, an insulating pull rod 7 is arranged between the fixed contact 4 and the movable contact 5, one end of the insulating pull rod 7 is connected with the isolating knife assembly 6, the isolating knife assembly 6 is composed of two knife boards 601 arranged in parallel, the other end of the insulating pull rod 7 is connected with a transmission mechanism 8, the front end and the rear end of the fixed contact 4 are respectively provided with a groove 401, a limiting device 9 is arranged inside the groove 401, the limiting device 9 is composed of a return spring 10 and a limiting block 11, one end of the return spring 10 is fixedly arranged inside the groove 401, the other end of the return spring 10 is fixedly connected with the limiting block 11, two cutting boards 601 are provided with width adjustment mechanism 12 in the position department that is close to moving contact 5, width adjustment mechanism 12 includes stud 1201, stud 1201 runs through two cutting boards 601, the outer end that stud 1201 stretches out cutting board 601 is provided with compression spring 1202, stud 1201's end fixing is provided with limiting plate 1203, compression spring 1202's one end is inconsistent with limiting plate 1203, stud 1201's tip is provided with adjusting nut 1204, adjusting nut 1204's outside cover is equipped with handle 1205.

Referring to fig. 1, the transmission mechanism 8 is composed of a connecting rod 801 and a rotating shaft 802, one end of the connecting rod 801 is movably connected with the insulating pull rod 7, and the other end of the connecting rod 801 is fixedly connected with the rotating shaft 802.

Referring to fig. 2 and 3, the head of the limiting block 11 is hemispherical, so that the isolating knife assembly 6 is only driven by the self gravity to compress the limiting block 11 back into the groove 401, the limiting block 11 can be compressed back into the groove 401 only under the driving of the insulating pull rod 7, the cross section of the groove 401 is circular, and the radius of the limiting block 11 is smaller than that of the groove 401.

Referring to fig. 4, the stud 1201 is threadedly coupled to the adjustment nut 1204.

Referring to fig. 4, an insulating anti-slip rubber pad is disposed on the handle 1205, the insulating rubber pad is made of a rubber insulating material, and a plurality of anti-slip ribs are disposed on the rubber pad at intervals, so that the rubber pad can perform an anti-slip function.

The utility model discloses when using, when needs are closed a floodgate, operating personnel rotates axis of rotation 802, it removes to drive insulating pull rod 7 through connecting rod 801, insulating pull rod 7 drives isolation knife tackle spare 6 and removes, stopper 11 moves back to the inside of recess 401 receiving the pressure of cutting board 601, reset spring 10 is in the compression state this moment, after isolation knife tackle spare 6 accomplishes closing a floodgate work with moving contact 5, stopper 11 no longer receives pressure, stopper 11 reeps out recess 401 under reset spring 10's effect, when needs are to the interval between two cutting boards 601 that changes, operating personnel can rotate handle 1205 and change adjusting nut 1204 the position on stud 1201, two cutting boards 601 are under compression spring 1202's effort, its interval also can take place certain change.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Indoor high voltage isolator, including installation chassis (1), first insulator (2) and second insulator (3), its characterized in that: the upper ends of the first insulator (2) and the second insulator (3) are respectively and fixedly provided with a static contact (4) and a moving contact (5), the static contact (4) is connected with an isolation knife assembly (6) through a bolt shaft pin, an insulation pull rod (7) is arranged between the static contact (4) and the moving contact (5), one end of the insulation pull rod (7) is connected with the isolation knife assembly (6), the isolation knife assembly (6) is composed of two knife boards (601) arranged in parallel, the other end of the insulation pull rod (7) is connected with a transmission mechanism (8), the front end and the rear end of the static contact (4) are respectively provided with a groove (401), a limiting device (9) is arranged in the groove (401), the limiting device (9) is composed of a reset spring (10) and a limiting block (11), one end of the reset spring (10) is fixedly arranged in the groove (401), the other end of the reset spring (10) is fixedly connected with the limiting block (11), two knife boards (601) are provided with a width adjusting mechanism (12) at positions close to the moving contact (5), the width adjusting mechanism (12) comprises a double-headed bolt (1201), the double-headed bolt (1201) penetrates through the two knife boards (601), the outer end of the double-headed bolt (1201) extending out of the knife boards (601) is provided with a compression spring (1202), the end part of the double-headed bolt (1201) is fixedly provided with a limiting plate (1203), one end of the compression spring (1202) is abutted to the limiting plate (1203), the end part of the double-headed bolt (1201) is provided with an adjusting nut (1204), and the outer side sleeve of the adjusting nut (1204) is provided with a handle (1205).

2. The indoor high voltage isolator according to claim 1, wherein: the transmission mechanism (8) is composed of a connecting rod (801) and a rotating shaft (802), one end of the connecting rod (801) is movably connected with the insulating pull rod (7), and the other end of the connecting rod (801) is fixedly connected with the rotating shaft (802).

3. The indoor high voltage isolator according to claim 1, wherein: the head of the limiting block (11) is hemispherical.

4. An indoor high voltage isolator according to claim 3, wherein: the cross section of the groove (401) is circular, and the radius of the limiting block (11) is smaller than that of the groove (401).

5. The indoor high voltage isolator according to claim 1, wherein: the stud bolt (1201) is in threaded connection with the adjusting nut (1204).

6. The indoor high voltage isolator according to claim 1, wherein: an insulating anti-skid rubber pad is arranged on the handle (1205).