CN113764224A

CN113764224A - High-voltage switch complete equipment with good insulation performance

Info

Publication number: CN113764224A
Application number: CN202111317800.2A
Authority: CN
Inventors: 赵敬辉; 丁建忠; 杨微玉
Original assignee: Changzhou Pingchuan Feiyao Electric Co ltd
Current assignee: Changzhou Pingchuan Feiyao Electric Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2021-12-07
Anticipated expiration: 2041-11-09
Also published as: CN113764224B

Abstract

The invention relates to the technical field of power transmission, and discloses high-voltage switch complete equipment with good insulating property, which comprises a channel steel frame, three first contact parts, three switch blades and three second contact parts, wherein the three first contact parts are equidistantly installed on the rear side of the upper surface of the channel steel frame from left to right, the switch blades are rotatably installed at the top ends of the first contact parts, the three second contact parts are equidistantly installed on the front side of the upper surface of the channel steel frame from left to right, and the high-voltage switch complete equipment also comprises: the mounting mechanism is mounted at the bottom end of the channel steel frame; a support mechanism mounted on the top end of the second contact member; and the connecting mechanism is arranged at the working end of the knife switch. The invention can realize the adjustment of the distance between the knife switch and the electrical equipment, avoid the electrical equipment from being interfered by voltage, ensure the normal use of the electrical equipment, has the arc extinguishing function, is suitable for the switching operation of electric arcs, has wide use conditions and greatly meets the use requirements of power on and power off.

Description

High-voltage switch complete equipment with good insulation performance

Technical Field

The invention relates to the technical field of power transmission, in particular to high-voltage switch complete equipment with good insulating property.

Background

High-voltage isolating switches (belonging to high-voltage switches) are important switching devices in electric systems of power plants and transformer substations and need to be matched with high-voltage circuit breakers for use. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 kV. The main functions are as follows: the safety of the high-voltage electrical appliance and the device during maintenance work is ensured, the voltage isolation function is realized, the high-voltage electrical appliance and the device cannot be used for cutting off, putting in load current and cutting off short-circuit current, and only can be used for certain switching operation without generating strong electric arcs, namely the high-voltage electrical appliance and the device do not have the arc extinguishing function; the voltage class is divided into an indoor type and an outdoor type according to different installation places, and is divided into a single column type, a double column type and a three column type according to the number of insulating support columns, and each voltage class is provided with optional equipment;

under high voltage environment, high pressure can puncture the air and make the air electrified, and this phenomenon is inevitable, and this causes high voltage isolator and other electrical equipment mutual interference easily, influences other electrical equipment's use, and high voltage isolator is because do not possess the arc extinguishing function, consequently, can't be applicable to the switching operation that can produce electric arc, and the use limitation is big, is difficult to satisfy the user demand of switching on and off the power supply.

Disclosure of Invention

The invention aims to provide high-voltage switch complete equipment with good insulating property, which at least solves the problems that the prior art can not adjust the distance between a high-voltage isolating switch and other electrical equipment, is easy to interfere the use of other electrical equipment and can not be used in the environment with electric arcs.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high tension switchgear complete sets that insulating properties is good, includes channel steelframe, three first contact part, three plug-in strip and three second contact part, three first contact part from a left side to right equidistance is installed in the upper surface rear side of channel steelframe, the plug-in strip rotatably installs in the top of first contact part, and is three second contact part from a left side to right equidistance is installed in the upper surface front side of channel steelframe, still includes: the mounting mechanism is mounted at the bottom end of the channel steel frame; a support mechanism mounted on the top end of the second contact member; the connecting mechanism is arranged at the working end of the knife switch;

the mounting mechanism includes: the base is fixedly connected to the bottom end of the channel steel frame; the two sleeves are respectively and fixedly connected to the front side and the rear side of the bottom end of the base; the limiting sleeve is arranged at the left end of the inner cavity of the sleeve; the supporting rod can be inserted into the inner cavity of the limiting sleeve in a left-right sliding mode, and clamping grooves are formed in the lower surface of the supporting rod at equal intervals from left to right; the limiting block is arranged at the right end of the supporting rod and matched with the limiting sleeve to limit the supporting rod; the mounting plate is fixedly connected to the left end of the supporting rod; the clamping component is arranged at the left end of the lower surface of the limiting sleeve; the reinforcing rib is arranged at the bottom end of the clamping component;

the support mechanism includes: a first socket attached to a tip of the second contact member; the first contact is arranged at the top end of the second contact component, the first contact is positioned in the inner cavity of the first pipe sleeve, and the first contact and the upper surface of the first pipe sleeve are positioned on the same horizontal plane; and the gasket is fixedly connected to the outer wall of the first pipe sleeve.

Preferably, the click assembly includes: the limiting cylinder is arranged at the left end of the lower surface of the limiting sleeve; the sliding rod can be inserted into the inner cavity of the limiting cylinder in a vertically sliding manner, and the bottom end of the sliding rod extends out of the lower surface of the limiting cylinder and is fixedly connected with the top of the reinforcing rib; the third spring is sleeved on the outer wall of the sliding rod and is positioned in the inner cavity of the limiting cylinder; and one end of the inserted rod is arranged at the center of the top end of the sliding rod, and the other end of the inserted rod is inserted into the inner cavity of the clamping groove under the action of the third spring.

Preferably, the top end of the inserted rod is triangular.

Preferably, the connection mechanism includes: the second pipe sleeve is arranged at the top end of the front side of the knife switch, and mounting grooves are formed in the outer wall of the second pipe sleeve along the circumferential direction; one end of the first spring is arranged at the rear side of the inner cavity of the second pipe sleeve; the second contact is arranged at the other end of the first spring, is adaptive to be inserted into the inner cavity of the second pipe sleeve and is electrically connected with the first contact part; the guide rod is arranged in the inner cavity of the mounting groove; the second spring is sleeved on the outer wall of the guide rod; the sliding block is sleeved at the front end of the outer wall of the guide rod in a front-and-back sliding manner; and the sealing sleeve is arranged on the outer side of the sliding block and is matched and sleeved on the outer wall of the second pipe sleeve.

Preferably, the number of the mounting grooves is at least three, and the mounting grooves are equidistantly distributed on the outer wall of the second pipe sleeve along the circumferential direction.

Preferably, the second contact protrudes from the inner cavity of the second sleeve, and the second contact is located inside the sealing sleeve.

The high-voltage switch complete equipment with good insulating property provided by the invention has the beneficial effects that:

1. according to the invention, the slide bar drives the inserted bar to move downwards or upwards by pulling the reinforcing rib and the elastic force of the third spring, so that the inserted bar can be separated from or enter the clamping groove, and the purpose of positioning after the sleeve moves left and right on the supporting bar is achieved, thus the distance between the knife switch and the electrical equipment is adjusted, the electrical equipment is prevented from being interfered by voltage, and the normal use of the electrical equipment is ensured;

2. according to the invention, the switch blade drives the connecting mechanism to swing downwards, the first pipe sleeve is sleeved with the sealing sleeve, so that the first pipe sleeve and the second pipe sleeve form a closed space, then the second contact is connected with the first contact, and the first contact is prevented from generating electric arc under the condition of thin air, so that the arc extinguishing device has an arc extinguishing function, is suitable for switching operation capable of generating electric arc, has wide use conditions, and greatly meets the use requirements of power on and power off.

Drawings

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

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a front sectional view of the mounting mechanism of the present invention;

FIG. 4 is an enlarged view of the invention at B of FIG. 3;

FIG. 5 is a top cross-sectional view of the coupling mechanism of the present invention.

In the figure: 1. channel steel frame, 2, first contact part, 3, knife switch, 4, second contact part, 5, mounting mechanism, 51, base, 52, sleeve, 53, limit sleeve, 54, support rod, 55, clamping groove, 56, limit block, 57, mounting plate, 58, clamping component, 581, limit cylinder, 582, slide rod, 583, third spring, 584, inserted rod, 59, reinforcing rib, 6, support mechanism, 61, first pipe sleeve, 62, first contact, 63, gasket, 7, connecting mechanism, 71, second pipe sleeve, 72, mounting groove, 73, first spring, 74, second contact, 75, guide rod, 76, second spring, 77, slider, 78 and sealing sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a high-voltage switch complete equipment with good insulation performance comprises a channel steel frame 1, three first contact parts 2, three switch blades 3 and three second contact parts 4, wherein the three first contact parts 2 are equidistantly installed on the rear side of the upper surface of the channel steel frame 1 from left to right, the switch blades 3 are rotatably installed at the top ends of the first contact parts 2, the three second contact parts 4 are equidistantly installed on the front side of the upper surface of the channel steel frame 1 from left to right, the high-voltage switch complete equipment further comprises an installation mechanism 5, a supporting mechanism 6 and a connecting mechanism 7, the installation mechanism 5 is installed at the bottom end of the channel steel frame 1, the supporting mechanism 6 is installed at the top end of the second contact part 4, and the connecting mechanism 7 is installed at the working end of the switch blades 3;

the mounting mechanism 5 comprises a base 51, a sleeve 52, a limiting sleeve 53, a support rod 54, a clamping groove 55, limiting blocks 56, a mounting plate 57, a clamping component 58 and a reinforcing rib 59, wherein the base 51 is fixedly connected to the bottom end of the channel steel frame 1, the number of the sleeves 52 is two, the two sleeves are respectively and fixedly connected to the front side and the rear side of the bottom end of the base 51, the base 51 is supported through the matching of the sleeve 52 and the support rod 54, so that the channel steel frame 1 is supported, the limiting sleeve 53 is mounted at the left end of an inner cavity of the sleeve 52, the support rod 54 can be inserted into the inner cavity of the limiting sleeve 53 in a left-right sliding manner, the clamping grooves 55 are formed in the lower surface of the support rod 54 at equal intervals from left to right, the inserting rod 584 can be inserted into the clamping grooves 55 at different positions by utilizing the different positions of the clamping grooves 55, so as to conveniently position the moved sleeve 52, the limiting blocks 56 are mounted at the right end of the support rod 54, the limiting blocks 56 are matched with the limiting sleeve 53 to limit the support rod 54, the sleeve 52 is prevented from moving beyond the limit on the supporting rod 54, the mounting plate 57 is fixedly connected to the left end of the supporting rod 54, the clamping assembly 58 is mounted at the left end of the lower surface of the limiting sleeve 53, and the reinforcing rib 59 is mounted at the bottom end of the clamping assembly 58;

the support mechanism 6 comprises a first sleeve 61, a first contact 62 and a gasket 63, wherein the first sleeve 61 is mounted at the top end of the second contact part 4, the first contact 62 is located in an inner cavity of the first sleeve 61, the first contact 62 and the upper surface of the first sleeve 61 are in the same horizontal plane, the gasket 63 is fixedly connected to the outer wall of the first sleeve 61, and the gasket 63 is used for blocking the sealing sleeve 78 and ensuring that the sealing sleeve 78 stays at the joint of the first sleeve 61 and the second sleeve 71.

Preferably, the locking assembly 58 includes a limiting cylinder 581, a sliding rod 582, a third spring 583 and an inserting rod 584, the limiting cylinder 581 is installed at the left end of the lower surface of the limiting sleeve 53, the sliding rod 582 is inserted into the inner cavity of the limiting cylinder 581 in a vertically slidable manner, the bottom end of the sliding rod 582 extends out of the lower surface of the limiting cylinder 581 to be fixedly connected with the top of the reinforcing rib 59, the third spring 583 is sleeved on the outer wall of the sliding rod 582, the third spring 583 is a rotary spring and elastically deforms after being stretched or extruded, the sliding rod 582 returns to an initial state after external force is removed, the elastic force of the third spring is used to push the sliding rod 582 to move upwards, so that the inserting rod 584 is inserted into the slot 55, the third spring 583 is located in the inner cavity of the limiting cylinder 581, one end of the inserting rod 584 is installed at the center position of the top end of the sliding rod 582, the other end of the inserting rod 584 is inserted into the inner cavity of the slot 55 under the action of the third spring 583, the top end of the inserting rod 584 is triangular, so that the plunger 584 is inserted into the slot 55.

Preferably, the connection mechanism 7 includes a second sleeve 71, a mounting groove 72, a first spring 73, a second contact 74, a guide rod 75, a second spring 76, a slider 77, and a sealing sleeve 78, the second sleeve 71 is mounted on the front side top end of the knife switch 3, the mounting grooves 72 are circumferentially formed on the outer wall of the second sleeve 71, the number of the mounting grooves 72 is at least three, and the mounting grooves are circumferentially and equidistantly distributed on the outer wall of the second sleeve 71, so that the plurality of sliders 77 can limit the sealing sleeve 78 from multiple directions to ensure the stability of the movement of the sealing sleeve, one end of the first spring 73 is mounted on the rear side of the inner cavity of the second sleeve 71, the first spring 73 is a rotary spring, and is elastically deformed after being stretched or squeezed, and returns to the initial state after the external force is removed, the slider 77 is driven to move by the elastic force of the first spring, the second contact 74 is mounted on the other end of the first spring 73, and the second contact 74 is adapted to the inner cavity of the second sleeve 71, the second contact 74 is electrically connected to the first contact part 2, the guide rod 75 is installed in the inner cavity of the mounting groove 72, the slide block 77 can move linearly through the guide rod 75, the second spring 76 is sleeved on the outer wall of the guide rod 75, the slide block 77 is sleeved on the front end of the outer wall of the guide rod 75 in a sliding manner, the sealing sleeve 78 is installed on the outer side of the slide block 77, and the sealing sleeve 78 is fittingly sleeved on the outer wall of the second sleeve 71.

Preferably, the second contact 74 protrudes out of the inner cavity of the second sleeve 71, when the second sleeve 71 is in contact with the first sleeve 61, the second contact 74 can be stably in contact with the first contact 62 under the action of the elastic force of the first spring 73, the second contact 74 is located inside the sealing sleeve 78, the sealing sleeve 78 is ensured to be preferentially sleeved on the first sleeve 61, and then the connection between the second contact 74 and the first contact 62 can be realized, so that the connection is completed in a sealed state, and the generation of electric arcs is prevented.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Step one, mounting a driving device on a channel steel frame 1, and controlling a knife switch 3 to swing up and down;

step two, during installation, the installation plate 57 is locked on a channel steel base, so that the channel steel frame 1 can be suspended and fixed, when the switch blade 3 is too close to the electrical equipment, the reinforcing rib 59 is pulled down, the sliding rod 582 is made to move downwards and extrude the third spring 583 until the inserting rod 584 is separated from the clamping groove 55, the limitation on the sleeve 52 is removed, the sleeve 52 can be made to slide left and right on the outer wall of the supporting rod 54, the position of the switch blade 3 is adjusted until the switch blade 3 and the electrical equipment reach a safe distance, the reinforcing rib 59 is loosened, the third spring 583 pushes the sliding rod 582 to move upwards under the action of self elasticity, the inserting rod 584 is made to be inserted into the clamping groove 55 at the corresponding position, the moved sleeve 52 is positioned, the position adjustment of the switch blade 3 is completed, and the voltage in the air is prevented from influencing other electrical equipment;

step three, when the switch needs to be switched on, the switch blade 3 is driven by a driving device to swing downwards to enable the second contact 74 to gradually approach the first contact 62, when the sealing sleeve 78 is sleeved on the first pipe sleeve 61 and the sealing sleeve 78 is in contact with the gasket 63, the first pipe sleeve 61, the second pipe sleeve 71 and the sealing sleeve 78 form a closed space, along with the downward movement of the switch blade 3, the sliding block 77 moves along the outer wall of the guide rod 75 and extrudes the second spring 76 until the second pipe sleeve 71 is in contact with the first pipe sleeve 61, at the moment, the second contact 74 and the first contact 62 are connected in the closed space under the action of the elastic force of the first spring 73, oxygen is thin, electric arcs are prevented from being generated, communication among the first contact part 2, the switch blade 3 and the second contact part 4 is achieved, and the switch-on purpose is achieved;

this device can adjust the distance between plug-in strip 3 and other electrical equipment, prevents to cause the interference to other electrical equipment operation, goes on under airtight environment when closing a floodgate moreover, can prevent to produce electric arc, avoids the emergence of conflagration, uses under the multiple condition of being convenient for, more does benefit to the popularization.

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. The utility model provides a high tension switchgear complete sets that insulating properties is good, includes channel-section steel frame (1), three first contact part (2), three plug-in strip (3) and three second contact part (4), and is three first contact part (2) are installed in the upper surface rear side of channel-section steel frame (1) from a left side to right equidistance, plug-in strip (3) are rotatably installed in the top of first contact part (2), and are three second contact part (4) are installed in the upper surface front side of channel-section steel frame (1) from a left side to right equidistance, and its characterized in that still includes:

the mounting mechanism (5) is mounted at the bottom end of the channel steel frame (1);

a support mechanism (6) mounted on the top end of the second contact member (4);

the connecting mechanism (7) is arranged at the working end of the knife switch (3);

the mounting mechanism (5) comprises:

the base (51) is fixedly connected to the bottom end of the channel steel frame (1);

two sleeves (52) which are fixedly connected to the front side and the rear side of the bottom end of the base (51) respectively;

the limiting sleeve (53) is arranged at the left end of the inner cavity of the sleeve (52);

the supporting rod (54) can be inserted into the inner cavity of the limiting sleeve (53) in a left-right sliding mode, and clamping grooves (55) are formed in the lower surface of the supporting rod (54) at equal intervals from left to right;

the limiting block (56) is arranged at the right end of the supporting rod (54), and the limiting block (56) is matched with the limiting sleeve (53) to limit the supporting rod (54);

a mounting plate (57) fixedly connected to the left end of the support rod (54);

the clamping component (58) is arranged at the left end of the lower surface of the limiting sleeve (53);

a reinforcing rib (59) mounted at the bottom end of the clamping component (58);

the support mechanism (6) includes:

a first socket (61) attached to the tip of the second contact member (4);

the first contact (62) is arranged at the top end of the second contact component (4), the first contact (62) is positioned in the inner cavity of the first pipe sleeve (61), and the first contact (62) and the upper surface of the first pipe sleeve (61) are positioned on the same horizontal plane;

and the gasket (63) is fixedly connected to the outer wall of the first pipe sleeve (61).

2. The high-voltage switch complete equipment with good insulation performance as claimed in claim 1, wherein: the snap assembly (58) includes:

the limiting cylinder (581) is arranged at the left end of the lower surface of the limiting sleeve (53);

the sliding rod (582) can be inserted into the inner cavity of the limiting cylinder (581) in a vertically sliding manner, and the bottom end of the sliding rod (582) extends out of the lower surface of the limiting cylinder (581) to be fixedly connected with the top of the reinforcing rib (59);

the third spring (583) is sleeved on the outer wall of the sliding rod (582), and the third spring (583) is positioned in the inner cavity of the limiting cylinder (581);

and one end of the inserting rod (584) is installed at the center of the top end of the sliding rod (582), and the other end of the inserting rod is inserted into the inner cavity of the clamping groove (55) under the action of a third spring (583).

3. The high-voltage switch complete equipment with good insulation performance as claimed in claim 2, wherein: the top end of the insert rod (584) is triangular.

4. The high-voltage switch complete equipment with good insulation performance as claimed in claim 1, wherein: the connection mechanism (7) includes:

the second pipe sleeve (71) is mounted at the top end of the front side of the knife switch (3), and mounting grooves (72) are formed in the outer wall of the second pipe sleeve (71) along the circumferential direction;

a first spring (73) having one end mounted to the rear side of the inner cavity of the second socket (71);

the second contact (74) is arranged at the other end of the first spring (73), the second contact (74) is matched and plugged into the inner cavity of the second pipe sleeve (71), and the second contact (74) is electrically connected with the first contact part (2);

the guide rod (75) is arranged in the inner cavity of the mounting groove (72);

the second spring (76) is sleeved on the outer wall of the guide rod (75);

a slide block (77) which is sleeved at the front end of the outer wall of the guide rod (75) in a sliding manner;

and the sealing sleeve (78) is arranged on the outer side of the sliding block (77), and the sealing sleeve (78) is matched and sleeved on the outer wall of the second pipe sleeve (71).

5. The high-voltage switch complete equipment with good insulation performance as claimed in claim 4, wherein: the number of the mounting grooves (72) is at least three, and the mounting grooves are equidistantly distributed on the outer wall of the second pipe sleeve (71) along the circumferential direction.

6. The high-voltage switch complete equipment with good insulation performance as claimed in claim 4, wherein: the second contact (74) protrudes out of the inner cavity of the second pipe sleeve (71), and the second contact (74) is located inside the sealing sleeve (78).