High-voltage isolating switch

Abstract

The utility model discloses a high-voltage isolating switch, which belongs to the technical field of switches, and comprises an electric pole, one side of the electric pole is connected with a box body, one side of the box body is provided with a ventilation assembly, and the upper part of the electric pole is connected with a bracket; the protective assembly is arranged, the protective cover is moved towards the switch body, the protective cover moves to drive the moving block to move, after the moving block is attached to the side wall of the moving opening, the rotating rod is held by hand to apply force to drive the sealing cylinder to rotate and move, and the sealing cylinder rotates and moves to drive the connecting block to rotate and move. When a sealing ring on a sealing cylinder is attached to the side wall of a support and rotation of a rotating rod is stopped, rainwater can be prevented from falling on a switch body under the action of a protective cover in rainy days, and meanwhile moisture in the protective cover can be absorbed under the action of absorbent cotton, so that the moisture in the switch body can be prevented from falling on the switch body, and the service life of the switch body is prolonged. And the switch body is prevented from being damaged by rainwater erosion.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and in particular relates to a high-voltage isolating switch. Background Art

[0002] High-voltage isolating switches are important switchgear in the electrical systems of power plants and substations, and must be used in conjunction with high-voltage circuit breakers to connect, disconnect or convert lines when there is voltage but no load current in high-voltage equipment.

[0003] Chinese patent application No. 202122821302.3 discloses an automatic high-voltage disconnector, including a switch body and an electric pole supporting the switch body, a bevel gear 1 is fixed to one end of the support shaft of the switch body, a bevel gear 2 is meshed with the outer end of the bevel gear 1, an upper rotating shaft is fixed to the bottom end of the bevel gear 2, a connecting rod component is connected to the bottom end of the upper rotating shaft, a lower rotating shaft is connected to the bottom end of the connecting rod component, the bottom end of the lower rotating shaft passes through and is rotatably connected to a box, and the bottom end of the lower rotating shaft is connected to a motor; the utility model adds bevel gear 1, bevel gear 2 and a connecting rod component, etc., and starts the motor to complete the opening or closing of the high-voltage disconnector, without manual operation by the staff, which is more convenient; press the card block, insert the protrusion on one connecting rod into the slot on the other connecting rod, and complete the connection of the two connecting rods. According to the above operation, the installation of the connecting rod component can be completed, and there is no need to use a long connecting rod for transmission, which is convenient for the staff to carry.

[0004] In the above patent, a switch body is arranged above the bracket, and the switch body is directly exposed to the outside. Rainwater in the external environment directly falls on the switch body, which may easily cause the switch body and the components of the transmission mechanism to be corroded and damaged. In addition, the motor components of the transmission mechanism are arranged inside the box. The heat generated during the operation of the motor is accumulated inside the box, which may easily cause the working environment temperature of the motor to be too high, affecting the normal service life of the motor. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a high-voltage isolating switch, which has the characteristics of protection and ventilation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage isolating switch, comprising an electric pole, a box body connected to one side of the electric pole, a ventilation assembly arranged on one side of the box body, a bracket connected to the top of the electric pole, a switch body arranged above the bracket, a transmission mechanism arranged between the box body and the switch body, and a protective assembly arranged above the bracket and on the periphery of the switch body.

[0007] Preferably, the protection component includes a protection cover and absorbent cotton, the protection cover is connected above the bracket and located on the periphery of the switch body, and the absorbent cotton is connected to the inner wall of the protection cover.

[0008] Preferably, the protective component also includes a movable port, a movable block, a fixed screw, a fixed nut and a sealing member. The protective cover is connected to a movable block on one side close to the absorbent cotton, a movable port is provided on the side wall of the absorbent cotton and at a position corresponding to the movable block, a fixed screw is connected to the side wall of the movable block, a fixed nut is connected to the outer wall of the fixed screw and located on one side of the absorbent cotton, and a sealing member is provided on the periphery of the fixed nut.

[0009] Preferably, the seal includes a sealing cylinder, a rotating rod and a connecting block, the connecting block is connected to the side wall of the fixing nut, the end of the connecting block away from the fixing nut is connected to the sealing cylinder, one side of the sealing cylinder is connected to a sealing ring, and the other side of the sealing cylinder is connected to the rotating rod.

[0010] Preferably, the ventilation assembly includes a ventilation cylinder and ventilation openings, a plurality of ventilation openings are arranged on the side walls of the box body, and a ventilation cylinder is connected to the bottom of the box body and located at the periphery of the ventilation openings.

[0011] Preferably, the ventilation assembly further includes a dustproof net, a connecting ring and a fixing ring, the fixing ring is connected to the inner wall of the ventilation tube, a connecting ring is provided on one side of the fixing ring, and the inside of the connecting ring is connected to the dustproof net.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a protection component, and the protection cover moves toward the switch body. The movement of the protection cover drives the moving block to move. When the moving block fits the side wall of the moving opening, the rotating rod is held by hand to apply force to drive the sealing cylinder to rotate and move. The rotation of the sealing cylinder drives the connecting block to rotate and move. The rotation of the connecting block drives the fixing nut to rotate and screw onto the fixing screw. When the sealing ring on the sealing cylinder fits the side wall of the bracket, the rotation of the rotating rod is stopped. When encountering rainy weather, the protection cover can prevent rain from falling on the switch body. At the same time, the absorbent cotton can absorb moisture inside the protection cover to prevent the switch body from being damaged by rain erosion.

[0014] 2. The utility model is provided with a ventilation assembly, and the connecting ring is connected to one side of the fixed ring, so that the dust screen can be installed on the periphery of the fixed ring. During the operation of the transmission mechanism, the air in the external environment enters into the ventilation duct, is filtered through the dust screen, and then enters into the box through the vent, so as to ensure the air circulation inside the box, avoid the internal environment temperature of the box being too high, and thus avoid the transmission mechanism components located in the box being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2It is a cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 2 Sectional view in the AA direction;

[0018] Figure 4 For this utility model Figure 3 The enlarged view of point B in the middle;

[0019] Figure 5 It is a partial cross-sectional view of the connection state between the box body and the transmission mechanism of the utility model.

[0020] In the figure: 1. Protection component; 11. Protection cover; 12. Water-absorbing cotton; 13. Moving port; 14. Moving block; 15. Fixing screw; 16. Fixing nut; 17. Seal; 171. Sealing cylinder; 172. Rotating rod; 173. Connecting block; 2. Bracket; 3. Switch body; 4. Box; 5. Electric pole; 6. Transmission mechanism; 7. Ventilation component; 71. Ventilation cylinder; 72. Dust net; 73. Connecting ring; 74. Fixing ring; 75. Ventilation port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a high-voltage isolating switch, including a pole 5, a box body 4 is connected to one side of the pole 5, a ventilation component 7 is arranged on one side of the box body 4, a bracket 2 is connected to the top of the pole 5, a switch body 3 is arranged above the bracket 2, a transmission mechanism 6 is arranged between the box body 4 and the switch body 3, and a protective component 1 is arranged above the bracket 2 and on the periphery of the switch body 3.

[0024] Specifically, the protection component 1 includes a protection cover 11 and absorbent cotton 12. The protection cover 11 is connected above the bracket 2 and located on the periphery of the switch body 3. The absorbent cotton 12 is connected to the inner wall of the protection cover 11.

[0025] By adopting the above technical solution, the protective cover 11 is installed above the bracket 2. When it rains later, the protective cover 11 can prevent rain from falling on the switch body 3. At the same time, the absorbent cotton 12 can absorb moisture inside the protective cover 11 to prevent the switch body 3 from being damaged by rain erosion.

[0026] Specifically, the protective component 1 also includes a moving port 13, a moving block 14, a fixed screw 15, a fixed nut 16 and a sealing member 17. The protective cover 11 is connected to the moving block 14 on one side close to the absorbent cotton 12. The moving port 13 is provided on the side wall of the absorbent cotton 12 and at a position corresponding to the moving block 14. The side wall of the moving block 14 is connected to the fixing screw 15. The outer side wall of the fixing screw 15 and one side of the absorbent cotton 12 is connected to the fixing nut 16. The outer periphery of the fixing nut 16 is provided with a sealing member 17.

[0027] By adopting the above technical solution, when it is necessary to perform maintenance operations on the switch body 3, the seal 17 is held by hand and force is applied to drive the fixing nut 16 to rotate and disengage from the fixing screw 15, and then the protective cover 11 is moved toward the periphery of the switch body 3. The movement of the protective cover 11 drives the moving block 14 to move inside the moving opening 13. When the protective cover 11 is away from the switch body 3, maintenance operations are performed on the switch body 3 to prevent the protective cover 11 from affecting the operator's maintenance operations on the switch body 3.

[0028] Specifically, the sealing member 17 includes a sealing cylinder 171, a rotating rod 172 and a connecting block 173. The connecting block 173 is connected to the side wall of the fixing nut 16. The end of the connecting block 173 away from the fixing nut 16 is connected to the sealing cylinder 171. A sealing ring is connected to one side of the sealing cylinder 171. The rotating rod 172 is connected to the other side of the sealing cylinder 171.

[0029] By adopting the above technical solution, the rotating rod 172 is held and force is applied to drive the sealing cylinder 171 to rotate and move, and the rotation of the sealing cylinder 171 drives the connecting block 173 to rotate and move, and the rotation of the connecting block 173 drives the fixing nut 16 to rotate and screw onto the fixing screw 15. When the sealing ring on the sealing cylinder 171 fits the side wall of the bracket 2, the rotation of the rotating rod 172 is stopped, which is convenient for the operator to operate. At the same time, under the action of the sealing cylinder 171 and the sealing ring, rainwater can be prevented from falling onto the fixing screw 15 and the fixing nut 16, causing the fixing screw 15 and the fixing nut 16 to rust and affect the connection effect of the fixing screw 15 and the fixing nut 16.

[0030] When the present embodiment is used, the protective cover 11 is moved toward the switch body 3, and the movement of the protective cover 11 drives the moving block 14 to move inside the moving opening 13. When the moving block 14 fits the side wall of the moving opening 13, the end of the fixing screw 15 passes through the bracket 2, and then the rotating rod 172 is held by hand to apply force to drive the sealing cylinder 171 to rotate and move, and the sealing cylinder 171 rotates and moves to drive the connecting block 173 to rotate and move, and the connecting block 173 rotates and moves to drive the fixing nut 16 to rotate and screw onto the fixing screw 15. When the sealing ring on the sealing cylinder 171 fits the side wall of the bracket 2, the rotation of the rotating rod 172 is stopped. When encountering rainy weather, under the action of the protective cover 11, rainwater can be prevented from falling on the switch body 3. At the same time, under the action of the absorbent cotton 12, moisture inside the protective cover 11 can be absorbed to prevent the switch body 3 from being damaged by rainwater erosion. When the high-voltage isolating switch body 3 needs to be used, the transmission mechanism 6 between the box body 4 and the switch body 3 is started, and the switch operation of the switch body 3 is realized by the transmission mechanism 6.

[0031] Example 2

[0032] The present embodiment is different from the first embodiment in that the ventilation assembly 7 includes a ventilation cylinder 71 and ventilation openings 75. A plurality of ventilation openings 75 are provided on the side wall of the box body 4. The ventilation cylinder 71 is connected to the lower part of the box body 4 and the periphery of the ventilation openings 75.

[0033] Specifically, the ventilation assembly 7 further includes a dustproof net 72, a connecting ring 73 and a fixing ring 74. The fixing ring 74 is connected to the inner wall of the ventilation tube 71, and a connecting ring 73 is provided on one side of the fixing ring 74. The dustproof net 72 is connected inside the connecting ring 73.

[0034] By adopting the above-mentioned technical solution, the connecting ring 73 is connected to one side of the fixing ring 74, so that the dustproof net 72 can be installed on the periphery of the fixing ring 74. Under the action of the dustproof net 72, dust and other impurities in the external environment can be prevented from entering the interior of the box body 4 through the ventilation tube 71 and the ventilation port 75, thereby preventing the components of the transmission mechanism 6 inside the box body 4 from being contaminated.

[0035] When this embodiment is used, the connecting ring 73 is connected to one side of the fixing ring 74, so that the dustproof net 72 can be installed on the periphery of the fixing ring 74. During the operation of the transmission mechanism 6, the air in the external environment enters the interior of the ventilation duct 71, is filtered by the dustproof net 72, and then enters the interior of the box 4 through the vent 75, thereby ensuring the air circulation inside the box 4, avoiding the internal ambient temperature of the box 4 from being too high, and thus avoiding damage to the components of the transmission mechanism 6 located in the box 4.

[0036] The structure and principle of the transmission mechanism 6 composed of bevel gear 1, bevel gear 2, upper rotating shaft, connecting rod, motor and lower rotating shaft in the utility model have been disclosed in an automatic high-voltage isolating switch disclosed in Chinese patent application number 202122821302.3. Its working principle is: a motor is connected to the inside of the box body 4, and the output end of the motor is connected to the lower rotating shaft, the end of the lower rotating shaft is connected to the connecting rod, the end of the connecting rod is connected to the upper rotating shaft, the end of the upper rotating shaft is connected to bevel gear 2, and bevel gear 1 is connected to one end of the support shaft of the switch body 3 and the position corresponding to bevel gear 2. When in use, the motor is used to drive the lower rotating shaft to rotate, and the rotation of the lower rotating shaft drives the connecting rod and the upper rotating shaft to rotate, and the rotation of the upper rotating shaft drives the bevel gear 2 to rotate, thereby driving the bevel gear 1 to rotate, and the rotation of the bevel gear 1 drives the support shaft of the switch body 3 to rotate, thereby realizing the switching operation of the switch body 3.

[0037] The working principle and use process of the utility model are as follows: the utility model connects the connecting ring 73 to one side of the fixing ring 74, so that the dustproof net 72 can be installed on the periphery of the fixing ring 74, and then the protective cover 11 is moved toward the switch body 3, and the movement of the protective cover 11 drives the moving block 14 to move inside the moving opening 13. When the moving block 14 fits the side wall of the moving opening 13, the end of the fixing screw 15 passes through the bracket 2, and then the rotating rod 172 is held by hand to apply force to drive the sealing cylinder 171 to rotate and move, and the rotation of the sealing cylinder 171 drives the connecting block 173 to rotate and move, and the rotation of the connecting block 173 drives the fixing nut 16 to rotate and screw onto the fixing screw 15, and when the sealing ring on the sealing cylinder 171 fits the side wall of the bracket 2, the rotation of the rotating rod 172 is stopped. When encountering rainy weather, the protective cover 11 can prevent rain from falling on the switch body 3. At the same time, the absorbent cotton 12 can absorb the moisture inside the protective cover 11 to prevent the switch body 3 from being damaged by rain erosion. When the high-voltage isolating switch body 3 needs to be used, the transmission mechanism 6 between the box body 4 and the switch body 3 is started, and the transmission mechanism 6 is used to realize the switching operation of the switch body 3. During the operation of the transmission mechanism 6, the air in the external environment enters the interior of the ventilation duct 71, is filtered through the dustproof net 72, and then enters the interior of the box body 4 through the vent 75, thereby ensuring the air circulation inside the box body 4 and preventing the internal ambient temperature of the box body 4 from being too high, thereby preventing the transmission mechanism 6 components located in the box body 4 from being damaged.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high voltage disconnector, comprising a pole, characterized in that: A box is connected to one side of the pole, a ventilation assembly is arranged on one side of the box, a bracket is connected to the top of the pole, a switch body is arranged above the bracket, a transmission mechanism is arranged between the box and the switch body, and a protective assembly is arranged above the bracket and on the periphery of the switch body.

2. A high voltage disconnect switch according to claim 1, characterized in that: The protection component comprises a protection cover and absorbent cotton. The protection cover is connected above the bracket and located on the periphery of the switch body, and the absorbent cotton is connected to the inner wall of the protection cover.

3. A high voltage disconnector according to claim 2, characterized in that: The protective component also includes a moving port, a moving block, a fixed screw, a fixed nut and a sealing member. The protective cover is connected to a moving block on one side close to the absorbent cotton. A moving port is provided on the side wall of the absorbent cotton at a position corresponding to the moving block. A fixed screw is connected to the side wall of the moving block. A fixed nut is connected to the outer wall of the fixed screw and located on one side of the absorbent cotton. A sealing member is provided on the periphery of the fixed nut.

4. A high voltage disconnector according to claim 3, characterized in that: The sealing member comprises a sealing cylinder, a rotating rod and a connecting block. The connecting block is connected to the side wall of the fixing nut, one end of the connecting block away from the fixing nut is connected to the sealing cylinder, one side of the sealing cylinder is connected to a sealing ring, and the other side of the sealing cylinder is connected to the rotating rod.

5. A high voltage disconnector according to claim 1, characterized in that: The ventilation assembly comprises a ventilation cylinder and ventilation openings. A plurality of ventilation openings are arranged on the side wall of the box body. A ventilation cylinder is connected to the bottom of the box body and located at the periphery of the ventilation openings.

6. A high voltage disconnect switch according to claim 5, characterized in that: The ventilation assembly also includes a dustproof net, a connecting ring and a fixing ring. The fixing ring is connected to the inner wall of the ventilation cylinder, a connecting ring is arranged on one side of the fixing ring, and the inside of the connecting ring is connected to the dustproof net.

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