CN213988712U

CN213988712U - Telescopic pneumatic high-voltage isolating switch

Info

Publication number: CN213988712U
Application number: CN202022978675.7U
Authority: CN
Inventors: 陈张根
Original assignee: Yuyao Chaoli Electric Appliance Co ltd
Current assignee: Yuyao Chaoli Electric Appliance Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-08-17
Anticipated expiration: 2030-12-09

Abstract

The utility model relates to the technical field of isolating switches, in particular to a telescopic pneumatic high-voltage isolating switch, which comprises a lower mounting frame and an upper mounting frame, wherein a cylinder is fixedly connected to the lower mounting frame, a connecting rod is fixedly connected to the top of the cylinder, and a moving contact is fixed on the connecting rod; the upper mounting frame is provided with a static contact matched with the moving contact, and is characterized in that: and the upper mounting frame is symmetrically provided with limiting parts. The utility model provides a telescopic pneumatic high-voltage isolating switch, wherein is equipped with the coupling assembling, the moving contact and mutually cooperate between the static contact to promote the pressure distribution of being connected between moving contact and the contact seat more even, thus has guaranteed the stability of contact between moving contact and the seat of leading out, guarantee the intercommunication of circuit; mutually support between coupling assembling and the spacing part to avoid cylinder and electric putter gas leakage to lead to moving contact and contact seat to be connected unstable problem, thereby realize the device and connect stable purpose.

Description

Telescopic pneumatic high-voltage isolating switch

Technical Field

The utility model relates to an isolator technical field especially relates to a telescopic pneumatic high-voltage isolator.

Background

The high-voltage isolating switch is the largest equipment in power transmission and transformation lines, and in recent two years, due to the limitation of outdoor environment and land area, many users install the switch in a limited indoor space.

Telescopic pneumatic high-voltage isolator among the prior art realizes the isolator action through cylinder cooperation link mechanism, is applicable to remote operation, but has some problems when using:

the first problem is that: when closing, the moving contact is in contact with the static contact, the contact part between the moving contact and the static contact is limited to point contact, and the point contact has the problems that the contact pressure is unstable, the communication of a circuit cannot be ensured and the like.

The second problem is that: when the air cylinder is used for a long time and air leaks, the moving contact and the static contact are not stably connected, and therefore voltage is not stable, and the electric appliance is damaged.

To above problem, the utility model provides a telescopic pneumatic high-voltage isolator.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a telescopic pneumatic high-voltage isolating switch is provided, can solve the problem that the copper casting takes out inconveniently to lead to work efficiency low.

(II) technical scheme

The utility model provides a technical scheme that above-mentioned technical problem adopted is: a telescopic pneumatic high-voltage isolating switch comprises a lower mounting frame and an upper mounting frame, wherein a cylinder is fixedly connected to the lower mounting frame, a connecting rod is fixedly connected to the top of the cylinder, and a moving contact is fixed on the connecting rod; the upper mounting frame is provided with a static contact matched with the moving contact, the upper mounting frame is symmetrically provided with limiting parts, the connecting rod is provided with a connecting assembly, and the connecting assembly is matched with the limiting parts.

The connecting assembly comprises a supporting plate fixed on the connecting rod, the connecting rod is sleeved with a connecting plate in a sliding fit mode, a supporting spring is connected between the connecting plate and the supporting plate, and the supporting spring is sleeved on the outer wall of the connecting rod; the supporting plate with swing joint has the connecting rod that is used for the partial pressure between the connecting plate, the connecting rod symmetry sets up the both sides of connecting rod.

Two ends of the connecting plate, which are far away from the connecting rod, are connected with a voltage-sharing cover, a through hole is formed in the middle of the voltage-sharing cover, and the moving contact passes through the through hole; and movable parts are symmetrically arranged on two opposite sides of the voltage-sharing cover, and the movable parts are matched with the limiting parts so as to limit the moving contact.

Preferably, the upper mounting frame is located above the lower mounting frame, the upper mounting frame is provided with a shielding cover opposite to the moving contact, an installation groove is formed in the middle of the shielding cover, and a static contact is installed in the installation groove.

Preferably, the stationary contact is connected with a contact spring, the lower end of the contact spring is connected with a contact seat, and the contact seat is matched with the moving contact.

Preferably, connecting rod one end with the backup pad is rotated and is connected, the connecting rod other end is equipped with the sliding block.

Preferably, the lower terminal surface symmetry of connecting plate be equipped with sliding block assorted sliding tray, the sliding block be located in the sliding tray and with sliding tray sliding connection.

Preferably, the movable part comprises a movable rod rotatably connected with the pressure equalizing cover, a resisting spring is connected between the lower end surface of the movable rod and the outer wall of the pressure equalizing cover, and a roller is rotatably connected at the tail end of the movable rod.

Preferably, the limiting parts are symmetrically installed at two sides of the static contact, each limiting part comprises a fixing rod fixed at the lower end of the upper installation frame, and a limiting block is fixed on the inner wall of each fixing rod.

Preferably, the limiting block is of a hemispherical structure protruding inwards, a sliding groove is formed in the side wall of the limiting block, and the sliding groove is matched with the roller.

(III) advantageous effects

1. The utility model provides a telescopic pneumatic high-voltage isolating switch, wherein the connecting component, the moving contact and the static contact are mutually matched to promote the pressure distribution between the moving contact and the contact seat to be more uniform, thereby ensuring the contact stability between the moving contact and the outlet seat and ensuring the circuit communication; mutually support between coupling assembling and the spacing part to avoid cylinder and electric putter gas leakage to lead to moving contact and contact seat to be connected unstable problem, thereby realize the device and connect stable purpose.

2. The utility model provides a pair of telescopic pneumatic high-voltage isolating switch, wherein cylinder promotes connecting rod and moving contact rebound, when removing the moving contact and contact seat contact, the shield cover has the counteraction to the voltage-sharing cover, this moment, the voltage-sharing cover counteracts the connecting plate, connecting plate extrusion supporting spring, make voltage-sharing cover and connecting plate remove to the backup pad direction together, and simultaneously, receive the counteraction of connecting plate, make the connecting rod have the one end of sliding block and remove in the sliding tray, make the connecting rod slope gradually, play certain cushioning effect to the moving contact at the in-process of connecting rod slope, the connecting rod promotes that the pressure distribution of being connected between moving contact and the contact seat is more even, thereby the stability of contact between moving contact and the play head seat has been guaranteed, guarantee the intercommunication of circuit.

3. The utility model provides a pair of telescopic pneumatic high-voltage isolating switch, wherein cylinder promotes connecting rod and moving contact rebound, at the in-process that the moving contact removed, the pressure-equalizing covers in the gyro wheel enters into the spout of stopper lateral wall, the inboard bellied hemispherical structure of stopper has the effect of resisting the gyro wheel, make gyro wheel and movable rod extrusion resist the spring, receive the effect that resists the spring, make the gyro wheel slide in the spout, and slide the position of stopper top along the spout, the moving contact contacts with the contact seat this moment, the effect of limited piece, make gyro wheel and movable rod joint in the top of stopper, thereby avoid cylinder and electric putter gas leakage to lead to moving contact and contact seat to be connected unstably, realize the device and connect stable mesh.

Drawings

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

fig. 2 is a schematic structural view of the connection assembly of the present invention;

fig. 3 is a schematic diagram of the overall structure of the utility model after closing;

fig. 4 is a schematic structural diagram of the connection between the movable part and the limiting part of the present invention.

Wherein: the device comprises a lower mounting frame 1, an upper mounting frame 2, an air cylinder 3, a connecting rod 4, a moving contact 5, a fixed contact 6, a contact spring 60, a contact seat 600, a limiting component 7, a fixed rod 71, a limiting block 72, a sliding groove 73, a connecting component 8, a supporting plate 81, a connecting plate 82, a supporting spring 83, a connecting rod 84, a sliding block 840, a pressure equalizing cover 85, a 850 through hole, a movable component 86, a movable rod 861, a resisting spring 862, an 863 roller, a sliding groove 87, a shielding cover 9 and a mounting groove 90.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1-4, a telescopic pneumatic high-voltage isolating switch comprises a lower mounting frame 1 and an upper mounting frame 2, wherein a cylinder 3 is fixedly connected to the lower mounting frame 1, a connecting rod 4 is fixedly connected to the top of the cylinder 3, and a moving contact 5 is fixed on the connecting rod 4; a static contact 6 matched with the moving contact 5 is arranged on the upper mounting frame 2, limiting parts 7 are symmetrically arranged on the upper mounting frame 2, a connecting component 8 is arranged on the connecting rod 4, and the connecting component 8 is matched with the limiting parts 7; wherein mutually support between cylinder 3, connecting rod 4, moving contact 5 and the static contact 6, realize the isolator action, cooperate through stop part 7 and coupling assembling 8, solve the long-time problem that uses gas leakage and make moving contact 5 and static contact 6 be connected unstably of cylinder 3.

Referring to fig. 1, the upper mounting frame 2 is located above the lower mounting frame 1, the upper mounting frame 2 is provided with a shielding cover 9 facing the moving contact 5, a mounting groove 90 is formed in the middle of the shielding cover 9, and the static contact 6 is mounted in the mounting groove 90.

The static contact 6 is connected with a contact spring 60, the lower end of the contact spring 60 is connected with a contact seat 600, the contact spring 60 and the contact seat 600 are both positioned in the mounting groove 90, the contact seat 600 is of an upwards-concave structure, and the contact seat 600 is matched with the moving contact 5.

The cylinder 3 is started, the cylinder 3 drives the moving contact 5 to contact with the contact seat 600, the contact between the moving contact and the contact seat is changed from point contact to surface contact, and the contact area between the moving contact 5 and the contact seat 600 is increased.

Referring to fig. 1-2, the connecting assembly 8 includes a supporting plate 81 fixed on the connecting rod 4, a connecting plate 82 is sleeved on the connecting rod 4 in a sliding fit manner, a supporting spring 83 is connected between the connecting plate 82 and the supporting plate 81, and the supporting spring 83 is sleeved on the outer wall of the connecting rod 4; a connecting rod 84 for partial pressure is movably connected between the supporting plate 81 and the connecting plate 82, and the connecting rods 84 are symmetrically arranged at two sides of the connecting rod 4.

One end of the connecting rod 84 is rotatably connected with the supporting plate 81, and the other end of the connecting rod 84 is provided with a sliding block 840.

The lower end surface of the connecting plate 82 is symmetrically provided with sliding grooves 87 matched with the sliding blocks 840, and the sliding blocks 840 are positioned in the sliding grooves 87 and are in sliding connection with the sliding grooves 87.

The two ends of the connecting plate 82 far away from the connecting rod 4 are connected with voltage-sharing covers 85, the middle of each voltage-sharing cover 85 is provided with a through hole 850, the through holes 850 are aligned with the movable contacts 5, and the movable contacts 5 pass through the through holes 850.

Referring to fig. 3, during specific operation, the cylinder 3 pushes the connecting rod 4 and the movable contact 5 to move upward, when the movable contact 5 is moved to contact with the contact block 600, the shielding cover 9 has a resisting effect on the voltage-sharing cover 85, at this time, the voltage-sharing cover 85 resists the connecting plate 82, the connecting plate 82 extrudes the supporting spring 83, so that the voltage-sharing cover 85 and the connecting plate 82 move together toward the supporting plate 81, and simultaneously, under the resisting effect of the connecting plate 82, the end of the connecting rod 84 with the sliding block 840 moves in the sliding groove 87, so that the connecting rod 84 gradually tilts, and plays a certain buffering role in the tilting process of the connecting rod 84 on the movable contact 5, and the connecting rod 84 promotes the pressure distribution of the connection between the movable contact 5 and the contact block 600 to be more uniform, thereby ensuring the stability of the contact between the movable contact 5 and the outlet block, and ensuring the connection of the circuit.

The two opposite sides of the voltage-sharing cover 85 are symmetrically provided with movable parts 86, and the movable parts 86 are matched with the limiting parts 7 so as to limit the moving contact 5, thereby solving the problem that the moving contact 5 is unstable in connection with the static contact 6 due to air leakage when the cylinder 3 is used for a long time.

The movable part 86 comprises a movable rod 861 which is rotatably connected with the pressure equalizing cover 85, a resisting spring 862 is connected between the lower end surface of the movable rod 861 and the outer wall of the pressure equalizing cover 85, and a roller 863 is rotatably connected at the tail end of the movable rod 861; normally, the resisting spring 862 resists the movable rod 861, so that a proper angle is maintained between the movable rod 861 and the pressure equalizing cover 85.

The limiting parts 7 are symmetrically arranged at the positions of two sides of the static contact 6, each limiting part 7 comprises a fixing rod 71 fixed at the lower end of the upper mounting frame 2, and a limiting block 72 is fixed on the inner wall of each fixing rod 71.

The limiting block 72 is a hemispherical structure protruding inwards, a sliding groove 73 is formed in the side wall of the limiting block 72, and the sliding groove 73 is matched with the roller 863.

Referring to fig. 3-4, during specific work, the cylinder 3 pushes the connecting rod 4 and the movable contact 5 to move upwards, and in the moving process of the movable contact 5, the roller 863 on the pressure equalizing cover 85 enters the sliding groove 73 on the side wall of the limiting block 72, the inward convex hemispherical structure of the limiting block 72 has a resisting effect on the roller 863, so that the roller 863 and the movable rod 861 extrude the resisting spring 862, and the roller 863 slides in the sliding groove 73 and slides to a position above the limiting block 72 along the sliding groove 73, at this time, the movable contact 5 contacts with the contact base 600, and under the effect of the limiting block 72, the roller 8613 and the movable rod 861 are clamped above the limiting block 72, thereby avoiding the problem that the connection between the movable contact 5 and the contact base 600 is unstable due to air leakage of the cylinder 3 and the electric push rod, and achieving the purpose of stable connection of the device.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A telescopic pneumatic high-voltage isolating switch comprises a lower mounting rack (1) and an upper mounting rack (2), wherein a cylinder (3) is fixedly connected to the lower mounting rack (1), a connecting rod (4) is fixedly connected to the top of the cylinder (3), and a moving contact (5) is fixed on the connecting rod (4); go up install on mounting bracket (2) with static contact (6) that moving contact (5) suited, its characterized in that: limiting parts (7) are symmetrically arranged on the upper mounting frame (2), a connecting assembly (8) is arranged on the connecting rod (4), and the connecting assembly (8) is matched with the limiting parts (7);

the connecting assembly (8) comprises a supporting plate (81) fixed on the connecting rod (4), a connecting plate (82) is sleeved on the connecting rod (4) in a sliding fit mode, a supporting spring (83) is connected between the connecting plate (82) and the supporting plate (81), and the supporting spring (83) is sleeved on the outer wall of the connecting rod (4); a connecting rod (84) for partial pressure is movably connected between the supporting plate (81) and the connecting plate (82), and the connecting rods (84) are symmetrically arranged at two sides of the connecting rod (4);

two ends, far away from the connecting rod (4), of the connecting plate (82) are connected with voltage-sharing covers (85), through holes (850) are formed in the middles of the voltage-sharing covers (85), and the moving contacts (5) penetrate through the through holes (850); and movable parts (86) are symmetrically arranged on two opposite sides of the voltage-sharing cover (85), and the movable parts (86) are matched with the limiting parts (7) so as to limit the moving contact (5).

2. The telescopic pneumatic high-voltage isolating switch as claimed in claim 1, wherein: the upper mounting frame (2) is located above the lower mounting frame (1), the upper mounting frame (2) is over against the movable contact (5) and is provided with a shielding cover (9), an installation groove (90) is formed in the middle of the shielding cover (9), and a static contact (6) is installed in the installation groove (90).

3. The telescopic pneumatic high-voltage isolating switch as claimed in claim 2, wherein: the static contact (6) is connected with a contact spring (60), the lower end of the contact spring (60) is connected with a contact seat (600), and the contact seat (600) is matched with the moving contact (5).

4. The telescopic pneumatic high-voltage isolating switch as claimed in claim 1, wherein: connecting rod (84) one end with backup pad (81) rotate to be connected, connecting rod (84) other end is equipped with sliding block (840).

5. The telescopic pneumatic high-voltage isolating switch as claimed in claim 4, wherein: the lower end face of connecting plate (82) symmetry be equipped with sliding tray (87) of sliding block (840) assorted, sliding block (840) be located in sliding tray (87) and with sliding tray (87) sliding connection.

6. The telescopic pneumatic high-voltage isolating switch as claimed in claim 1, wherein: the movable part (86) comprises a movable rod (861) which is rotatably connected with the pressure equalizing cover (85), a resisting spring (862) is connected between the lower end face of the movable rod (861) and the outer wall of the pressure equalizing cover (85), and a roller (863) is rotatably connected at the tail end of the movable rod (861).

7. The telescopic pneumatic high-voltage isolating switch as claimed in claim 6, wherein: the limiting parts (7) are symmetrically arranged at the positions of two sides of the static contact (6), each limiting part (7) comprises a fixing rod (71) fixed to the lower end of the upper mounting frame (2), and limiting blocks (72) are fixed to the inner walls of the fixing rods (71).

8. The telescopic pneumatic high-voltage isolating switch as claimed in claim 7, wherein: the limiting block (72) is of a hemispherical structure protruding inwards, a sliding groove (73) is formed in the side wall of the limiting block (72), and the sliding groove (73) is matched with the roller (863).