CN210866026U

CN210866026U - Novel single-grounding high-voltage isolating switch

Info

Publication number: CN210866026U
Application number: CN201922026583.6U
Authority: CN
Inventors: 陈裕忠; 徐雪昌
Original assignee: Changzhou Wujin Water Conservancy And Electric Equipment Co ltd
Current assignee: Changzhou Wujin Water Conservancy And Electric Equipment Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-06-26
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a novel single ground connection high voltage isolator, including the chassis, the equal rigid coupling in the upper surface left and right sides of chassis is equipped with the base, two the equal rigid coupling in upper surface of base is equipped with the insulator, controls two the top of insulator rigid coupling respectively is equipped with first wiring board and second wiring board, the equal rigid coupling in bottom center department of first wiring board and second wiring board is equipped with the one end of montant, the other end outer wall of montant has cup jointed perpendicular section of thick bamboo. Stretch the spring upwards through drawing and stretch the second diaphragm, second diaphragm pulling carousel uses the pivot to rotate as the pivot on branch, and the carousel withstands a mouthful and drives riser and vertical section of thick bamboo downstream, and the connecting rod promotes the pressure disk downstream and compresses tightly the insulator, and temperature sensing relay senses the power of back switch-on electric telescopic handle when the temperature is too high, has reached the effect that increases isolator insulator compactness, has realized carrying out refrigerated benefit to the high temperature that contact and isolation blade produced.

Description

Novel single-grounding high-voltage isolating switch

Technical Field

The utility model relates to a high tension switchgear technical field, specific field is novel single ground connection high voltage isolator.

Background

The high-voltage isolating switch is an important switching device in an electric system of a power plant and a transformer substation and needs to be matched with a high-voltage circuit breaker for use. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. For switching on, switching off or switching the line in the case of a voltage-loaded train of high-voltage equipment. 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, inputting 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 the insulating support columns, and each voltage class is provided with optional equipment. The insulator of the existing isolating switch is not tight enough due to the fact that the insulator is loosened by strong wind and the like, safety is greatly threatened in operation, and due to the fact that a static contact finger compression spring is compressed for a long time, if working current is large, temperature rise exceeds an allowable value, elasticity of the static contact finger compression spring is poor, vicious circle is achieved, burning loss is caused finally, the main reason that contact heating is caused is that the temperature needs to be reduced in time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel single ground connection high voltage isolator 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 single-grounding high-voltage isolating switch comprises a bottom frame, wherein bases are fixedly connected and assembled on the left side and the right side of the upper surface of the bottom frame, insulators are fixedly connected and assembled on the upper surfaces of the two bases, the top ends of the left insulator and the right insulator are fixedly connected and assembled with a first wiring board and a second wiring board respectively, one end of a vertical rod is fixedly connected and assembled at the center of the bottom ends of the first wiring board and the second wiring board, a vertical cylinder is sleeved on the outer wall of the other end of the vertical rod, one end of a connecting rod is movably installed at the bottom end of the left side wall and the bottom end of the right side wall of the vertical cylinder through a second connecting shaft, a pressure plate is arranged below the vertical cylinder and is attached to an insulator, connecting plates are fixedly connected and assembled on the left side and the right side of the pressure plate, the other end of the connecting rod is, one side of the lower surface of the first wiring board, which is close to the vertical plate, is provided with one end of a supporting rod, the other end of the supporting rod is movably provided with a rotary table through a rotary shaft, one side of the rotary table, which is close to the vertical plate, is fixedly connected with an ejecting block, the ejecting block is connected with an ejecting opening in a clamping manner, one side of the supporting rod, which is far away from the vertical rod, is fixedly connected with a first transverse plate, one side of the rotary table, which is far away from the vertical plate, is fixedly connected with a second transverse plate, a stretching spring is fixedly connected between the first transverse plate and the second transverse plate, the upper surface of the first wiring board is movably provided with an isolating blade, the upper surface of the second wiring board is fixedly connected with a contact, a transverse block and a supporting plate from left to right in sequence, one side of the supporting plate, which is close to the transverse block, the center department of crosspiece has opened the spout, slider and spout slip joint, be equipped with temperature sensing relay between crosspiece and the contact, temperature sensing relay links to each other with the second wiring board, temperature sensing relay and electric telescopic handle series connection electric connection, the inside of base is equipped with dehydrating unit.

Preferably, the dehydrating unit includes the motor, the motor rigid coupling is assembled in the inside of base, the last lateral wall of base is opened there is the venthole, the output rigid coupling of motor is equipped with the bull stick, the one end outer wall rigid coupling of bull stick is equipped with the flabellum, the below of venthole is equipped with the heating wire, the heating wire links to each other with the inner wall of base, the heating wire establishes ties electric connection with the motor.

Preferably, the outer wall of the stretching spring is sleeved with a sponge sleeve.

Preferably, the left side and the right side of the inside of the sliding groove are fixedly connected with plastic pads.

Preferably, the left side and the right side of the motor are both provided with clamping blocks, and the clamping blocks are connected with the base.

Preferably, the left side and the right side of the bottom end in the base are fixedly connected with dust collection pads.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a novel single ground connection high voltage isolator, upwards draw and stretch the second diaphragm through drawing the spring, second diaphragm pulling carousel uses the pivot to rotate as the turning point on branch, the carousel withstands the fore-set and drives riser and a chimney downstream, the chimney slides at the outer wall of montant, drive the connecting rod motion, the connecting rod promotes pressure disk downstream and compresses tightly the insulator, switch on electric telescopic handle's power behind the temperature sensing relay sensing when too high temperature, electric telescopic handle promotes the mullion motion, the mullion drives the slider and slides in the inside of spout, and the leather bag that drives the splendid attire coolant liquid cools down with the contact, the effect that has increased isolator insulator compactness has been reached, the high temperature that has produced contact and isolation blade has been realized carrying out refrigerated benefit.

Drawings

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

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of the enlarged structure at B of FIG. 1;

fig. 4 is a schematic view of the interior of the base of the present invention.

In the figure: 1-underframe, 2-base, 3-insulator, 4-vertical rod, 5-first wiring board, 6-isolation blade, 7-contact, 8-support plate, 9-dehumidifying device, 91-heating wire, 92-fan blade, 93-air outlet hole, 94-rotating rod, 95-motor, 10-cross block, 11-pressure plate, 12-first connecting shaft, 13-connecting plate, 14-connecting rod, 15-second connecting shaft, 16-vertical plate, 17-vertical cylinder, 18-support rod, 19-first transverse plate, 20-sponge sleeve, 21-stretching spring, 22-second transverse plate, 23-rotating shaft, 24-rotating disc, 25-top block, 26-top opening, 27-second wiring board, 28-electric telescopic rod, 29-vertical frame, 30-leather bag, 31-sliding groove, 32-sliding block, 33-clamping block, 34-plastic pad, 35-dust absorption pad and 36-temperature sensing relay.

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. 1-4, the present invention provides a technical solution: a novel single-grounding high-voltage isolating switch, refer to figure 1, comprising a chassis 1, the chassis 1 is a main body frame, other structures such as a base 2 are carried, the base 2 carries a dehumidifying device 9 and insulators 3, the left side and the right side of the upper surface of the chassis 1 are fixedly connected with the bases 2, the upper surfaces of the two bases 2 are fixedly connected with the insulators 3, the top ends of the left insulator 3 and the right insulator 3 are fixedly connected with a first wiring board 5 and a second wiring board 27 respectively, referring to figure 2, the centers of the bottom ends of the first wiring board 5 and the second wiring board 27 are fixedly connected with one end provided with a vertical rod 4, the outer wall of the other end of the vertical rod 4 is sleeved with a vertical tube 17, the bottom ends of the left side wall and the right side wall of the vertical tube 17 are movably provided with one end of a connecting rod 14 through a second connecting shaft 15, a pressure plate 11 is arranged below the vertical tube 17, the pressure plate 11 is, the second horizontal plate 22 pulls the rotary table 24 to rotate on the supporting rod 18 by taking the rotating shaft 23 as a rotating point, the rotary table 24 abuts against the top opening 26 and drives the vertical plate 16 and the vertical cylinder 17 to move downwards, the vertical cylinder 17 slides on the outer wall of the vertical rod 4 to drive the connecting rod 14 to move, the connecting rod 14 pushes the pressure plate 11 to move downwards to press the insulator 3, referring to fig. 3, when the isolating blade 6 is in contact with the contact 7 for isolation, when the temperature is too high, the temperature sensing relay 36 senses the temperature and then switches on the power supply of the electric telescopic rod 28, the electric telescopic rod 28 pushes the vertical frame 29 to move, the vertical frame 29 drives the sliding block 32 to slide in the sliding groove 31, and drives the leather bag 30 containing the cooling liquid to be in contact with the contact 7 for cooling, hot air flow generated by the electric heating wire 91 and blown out by the motor 95 of the dehumidifying device 9 dries moisture such as snow and frost on the surface of the, the other end of the connecting rod 14 is movably connected with a connecting plate 13 through a first connecting shaft 12, a vertical plate 16 is fixedly connected to one side wall of a vertical cylinder 17, a top opening 26 is formed in the outer wall of the vertical plate 16, one side, close to the vertical plate 16, of the lower surface of the first wiring board 5 is provided with one end of a supporting rod 18, the other end of the supporting rod 18 is movably installed with a rotary table 24 through a rotary shaft 23, one side, close to the vertical plate 16, of the rotary table 24 is fixedly installed with a top block 25, the top block 25 is connected with the top opening 26 in a clamping mode, one side wall, far away from the vertical rod 4, of the supporting rod 18 is fixedly installed with a first transverse plate 19, one side, far away from the vertical plate 16, of the rotary table 24 is fixedly installed with a second transverse plate 22, a stretching spring 21 is fixedly installed between the first transverse plate 19 and the second transverse plate 22, an isolating blade 6 is movably installed on the upper surface of the first wiring board 5, the output end of the electric telescopic rod 28 is fixedly connected with a vertical frame 29, the inner part of the vertical frame 29 is fixedly connected with a leather bag 30, the bottom end of the vertical frame 29 is fixedly connected with a sliding block 32, the center of the transverse block 10 is provided with a sliding groove 31, the sliding block 32 is in sliding clamping connection with the sliding groove 31, a temperature sensing relay 36 is arranged between the transverse block 10 and the contact 7, the temperature sensing relay 36 is connected with the second wiring board 27, the temperature sensing relay 36 is electrically connected with the electric telescopic rod 28 in series, and the inside of the base 2 is provided with a dehumidifying device 9.

Specifically, referring to fig. 4, the dehumidifying device 9 includes a motor 95, the motor 95 drives a rotating rod 94 and a fan blade 92 to rotate to generate an air flow, a hot air flow generated by a heating wire 91 is blown to the insulator 3 through an air outlet 93, the motor 95 is fixedly connected and assembled inside the base 2, the upper side wall of the base 2 is provided with the air outlet 93, the output end of the motor 95 is fixedly connected and assembled with the rotating rod 94, the outer wall of one end of the rotating rod 94 is fixedly connected and assembled with the fan blade 92, a heating wire 91 is arranged below the air outlet 93, the heating wire 91 is connected with the inner wall of the base 2, and the heating wire 91 is electrically.

Specifically, the outer wall of the tension spring 21 is sleeved with the sponge sleeve 20, and the sponge sleeve 20 protects the tension spring 21.

Specifically, the left and right sides of the inside of the chute 31 are fixedly provided with plastic pads 34, and the plastic pads 34 reduce the abrasion of the sliding block 32.

Specifically, the clamping blocks 33 are arranged on the left side and the right side of the motor 95, the clamping blocks 33 are connected with the base 2, and the clamping blocks 33 reduce the vibration of the motor 95.

Specifically, the left and right sides of the bottom end inside the base 2 are fixedly assembled with dust absorption pads 35, and the dust absorption pads 35 absorb dust entering from the air outlet 93.

The working principle is as follows: the utility model discloses, if insulator 3 takes place not hard up between the disk body, draw and stretch spring 21 upwards and stretch second diaphragm 22, second diaphragm 22 pulling carousel 24 uses pivot 23 to rotate as the turning point on branch 18, carousel 24 withstands a mouthful 26 and drives riser 16 and a vertical section of thick bamboo 17 downstream, a vertical section of thick bamboo 17 slides at the outer wall of montant 4, drive connecting rod 14 motion, connecting rod 14 promotes pressure disk 11 downstream and compresses tightly insulator 3, when keeping apart blade 6 and contact 7 contact and keeping apart, when the high temperature, switch-on electric telescopic handle 28's power after temperature sensing relay 36 senses, electric telescopic handle 28 promotes the mullion 29 motion, mullion 29 drives the inside slip of slider 32 at spout 31, and the leather bag 30 that drives the splendid attire coolant liquid cools down with contact 7 contact.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 novel single ground connection high voltage isolator, includes chassis (1), its characterized in that: the equal rigid coupling in upper surface left and right sides of chassis (1) is equipped with base (2), two the equal rigid coupling in upper surface of base (2) is equipped with insulator (3), controls two the top of insulator (3) rigid coupling respectively is equipped with first wiring board (5) and second wiring board (27), the equal rigid coupling in bottom center department of first wiring board (5) and second wiring board (27) is equipped with the one end of montant (4), the other end outer wall of montant (4) has cup jointed chimney (17), chimney (17) left and right sides wall bottom all has the one end of connecting rod (14) through second even axle (15) movable mounting, the below of chimney (17) is equipped with pressure disk (11), pressure disk (11) and insulator (3) are laminated mutually, the equal rigid coupling in left and right sides of pressure disk (11) is equipped with even board (13), the other end of connecting rod (14) links to each other through first even axle (12) and even board (13) activity, a side wall rigid coupling of a vertical cylinder (17) is equipped with riser (16), the outer wall of riser (16) is opened there is a fore-edge (26), one side that first wiring board (5) lower surface is close to riser (16) is equipped with the one end of branch (18), the other end of branch (18) has carousel (24) through pivot (23) movable mounting, one side rigid coupling that carousel (24) are close to riser (16) is equipped with kicking block (25), kicking block (25) link to each other with fore-edge (26) joint, a side wall rigid coupling that montant (4) were kept away from in branch (18) is equipped with first diaphragm (19), one side rigid coupling that riser (16) were kept away from in carousel (24) is equipped with second diaphragm (22), the rigid coupling is equipped with between first diaphragm (19) and second diaphragm (22) and draws and stretch spring (21), the upper surface movable mounting of first wiring board (5) has isolation blade (6), the upper surface of the second wiring board (27) is fixedly connected with a contact (7), a cross block (10) and a support plate (8) from left to right in sequence, one side wall of the support plate (8) close to the cross block (10) is fixedly connected with an electric telescopic rod (28), the output end of the electric telescopic rod (28) is fixedly connected with a vertical frame (29), the inner portion of the vertical frame (29) is fixedly connected with a leather bag (30), the bottom end of the vertical frame (29) is fixedly connected with a sliding block (32), the center of the cross block (10) is provided with a sliding groove (31), the sliding block (32) is in sliding connection with the sliding groove (31), a temperature sensing relay (36) is arranged between the cross block (10) and the contact (7), the temperature sensing relay (36) is connected with the second wiring board (27), and the temperature sensing relay (36) is electrically connected with the electric telescopic rod (28) in series, a dehumidifying device (9) is arranged in the base (2).

2. The novel single-grounding high-voltage isolating switch as claimed in claim 1, wherein: dehydrating unit (9) includes motor (95), motor (95) rigid coupling is assembled in the inside of base (2), the last lateral wall of base (2) is opened there are venthole (93), the output rigid coupling of motor (95) is equipped with bull stick (94), the one end outer wall rigid coupling of bull stick (94) is equipped with flabellum (92), the below of venthole (93) is equipped with heating wire (91), heating wire (91) links to each other with the inner wall of base (2), heating wire (91) and motor (95) series connection electric connection.

3. The novel single-grounding high-voltage isolating switch as claimed in claim 1, wherein: the outer wall of the stretching spring (21) is sleeved with a sponge sleeve (20).

4. The novel single-grounding high-voltage isolating switch as claimed in claim 1, wherein: the left side and the right side of the inside of the sliding chute (31) are fixedly connected with plastic pads (34).

5. The novel single-grounding high-voltage isolating switch as claimed in claim 2, wherein: the left side and the right side of the motor (95) are both provided with clamping blocks (33), and the clamping blocks (33) are connected with the base (2).

6. The novel single-grounding high-voltage isolating switch as claimed in claim 2, wherein: the left side and the right side of the bottom end in the base (2) are fixedly connected with dust absorption pads (35).