CN211980491U - A three-column horizontal rotary isolating switch - Google Patents

Abstract

The utility model relates to a three-column horizontal rotary isolating switch, comprising a base frame and an opening and closing switch. The base frame is a frame-type structure, and a cross bar is arranged inside the base frame. There is a conical tooth a, the left end of the rotating rod is connected with a spline shaft, the spline shaft and the outside are provided with a fan-shaped groove, the left side of the chassis is provided with a limit rod, the limit rod is L-shaped, and one end of the limit rod is in the shape of an L. The bottom frame is connected, the other end is located in the fan-shaped groove, the upper end of the conical tooth a is meshed with the conical tooth b, the upper end of the conical tooth b is connected with a support plate through the connecting shaft, and the support plate is connected with the cross bar through the turntable bearing for rotation; There are two static insulators, which are symmetrically arranged on both sides of the upper end of the chassis. One end of the static contact is connected to the static insulator, and the other end is provided with a connection block above and below. The lower end of the moving insulator is connected to the support plate, and the upper end A movable contact is provided, and the middle of both ends of the movable contact is provided with a connecting groove; the utility model has the advantages of stable and reliable action and small closing impact.

Description

A three-column horizontal rotary isolating switch

technical field

The utility model belongs to the field of high-voltage control switches, in particular to a three-column horizontal rotary isolating switch.

Background technique

Isolation switch is a switching device mainly used for isolating power supply, switching off operation, connecting and cutting off small current circuits and without arc extinguishing function. The power supply has an obvious disconnection point to ensure the safety of maintenance personnel; however, the existing outdoor high-voltage isolation switch, due to its own structural reasons, has poor circulation stability, inflexible rotation of the contact seat, and dynamic and static contacts. When closing, the impact is large and the operation stability is poor, which brings difficulties to the operator. Therefore, in order to solve the above problems, it is necessary to develop a three-column horizontal rotary disconnector with stable and reliable operation and small closing impact.

Utility model content

The purpose of the utility model is to provide a three-column horizontal rotary isolating switch with stable and reliable action and small closing impact in order to overcome the deficiencies of the prior art.

The purpose of the present utility model is achieved as follows: a three-column horizontal rotary isolating switch includes a bottom frame and an opening and closing switch. The cross bar is a hollow structure, and a rotating rod is passed through it. The outside of the rotating rod is uniformly fixed and sleeved with three conical teeth a. Rotational connection, wherein the left end of the rotating rod is fixedly connected with a spline shaft, the outside of the spline shaft and the connecting end of the rotating rod is provided with a fan-shaped groove, the left side of the bottom frame is provided with a limit rod, the limit rod It is L-shaped, one end of which is fixedly connected to the left side of the chassis, and the other end is located in the fan-shaped groove. It is arranged vertically, and the center of the upper end of the conical tooth b is provided with a connecting shaft. The upper surface of the rod is rotatably connected; there are three opening and closing switches, which are evenly arranged above the bottom frame and the cross bar, which include static insulators and dynamic insulators, and there are two static insulators, which are fixed symmetrically. On both sides of the upper end of the chassis, the upper end of the static insulator is provided with a static contact, one end of the static contact is fixedly connected with the static insulator, and a connection block is fixed above and below the other end. The upper surface of the support plate is fixedly connected, and the upper end is provided with a movable contact, the movable contact is in the shape of a long strip, and a connection groove is arranged in the middle position of the two ends.

The connecting block is in the shape of an isosceles trapezoid, and its lower bottom surface is fixedly connected with the static contact.

The connection block and the static contact are integrally connected.

The center of the movable contact, the center of the support plate and the axis of the connecting shaft are all located on the same straight line.

Beneficial effects of the utility model: The utility model is provided with a rotating rod, a conical tooth a, a conical tooth b, a connecting shaft, a support plate, a rotating plate bearing and a spline shaft. When in use, the outer sleeve rod is sleeved on the spline. The outside of the shaft drives the spline shaft to rotate. The rotation of the spline shaft drives the rotating rod and the conical tooth a to rotate. The meshing between the conical tooth a and the conical tooth b is used to drive the conical tooth b and the connection. The rotation of the shaft and the support plate, and then the rotation of the support plate is used to drive the rotation of the upper end moving insulator and the moving contact, so that the connecting grooves at both ends of the moving contact are connected with the connecting block on the static contact, thereby realizing the utility model. This structure is adopted in the present utility model, and the meshing between the conical teeth a and the conical teeth b is used to improve the stability of the connection operation between the static contact and the moving contact, and at the same time, reduce the dynamic contact The impact of the contact head and the static contact when closing; the utility model can adjust the rotation range of the spline shaft and the rotating rod by arranging the fan-shaped groove and the limit rod, and using the cooperation between the limit rod and the fan-shaped groove. control, so as to effectively complete the matching connection between the connection slot and the connection block; in general, the utility model has the advantages of stable and reliable action and small closing impact.

Description of drawings

Figure 1 is a top view of the present invention.

Figure 2 is a side view of the present invention.

3 is a cross-sectional view of the front view of the connection between the support plate and the cross bar in the present invention.

FIG. 4 is a front view of the connection block and the static contact in the present invention.

5 is a cross-sectional view of the side view of the connection between the fan-shaped groove and the limit rod in the present invention.

In the figure: 1. Bottom frame 11, cross bar 12, rotating rod 13, conical tooth a 14, conical tooth b 15, connecting shaft 16, support plate 17, turntable bearing 2, opening and closing switch 21, static insulator 22 , Moving insulator 3, spline shaft 31, sector groove 4, limit rod 5, static contact 6, connecting block 7, moving contact 71, connecting groove.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

Example: As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, a three-column horizontal rotary isolating switch includes a chassis 1 and an opening and closing switch 2, and the chassis 1 is a frame type structure, a cross bar 11 is fixedly arranged in the middle position of the interior, the cross bar 11 is a hollow structure, and a rotating rod 12 is passed through the interior. Both ends of the rotating rod 12 protrude from the outside of the base frame 1 and are rotatably connected to the base frame 1 through bearings. The left end of the rotating rod 12 is fixedly connected with a spline shaft 3, and the spline shaft 3 is connected to the outside of the connecting end of the rotating rod 12. A fan-shaped groove 31 is provided, and a limit rod 4 is provided on the left side of the bottom frame 1. The limit rod 4 is L-shaped, one end of which is fixedly connected to the left side of the bottom frame 1, and the other end is located in the fan-shaped In the groove 31, the upper end of the conical tooth a13 is meshed with the conical tooth b14, the conical tooth a13 and the conical tooth b14 are arranged vertically, and the center of the upper end of the conical tooth b14 is provided with a connecting shaft 15. The upper end of the connecting shaft 15 protrudes from the outside of the cross bar 11 and is fixedly connected with a support plate 16. The lower surface of the support plate 16 is rotatably connected to the upper surface of the cross bar 11 through the turntable bearing 17; the opening and closing There are three switches 2 , which are evenly arranged above the chassis 1 and the cross bar 11 , and include static insulators 21 and moving insulators 22 . There are two static insulators 21 . On both sides, the upper end of the static insulator 21 is provided with a static contact 5, one end of the static contact 5 is fixedly connected with the static insulator 21, and a connecting block 6 is fixed above and below the other end. Isosceles trapezoid shape, the bottom surface of which is in contact with the static contact 5, and the connection block 6 and the static contact 5 are integrally connected, the lower end of the moving insulator 22 is fixedly connected with the upper surface of the support plate 16, and the upper end A movable contact 7 is provided, the movable contact 7 is in the shape of a long strip, and a connecting groove 71 is provided in the middle position of its two ends; The axes are all on the same straight line.

In the process of using the utility model, when it is necessary to close and energize, the external sleeve rod is sleeved on the outside of the spline shaft 3, and the spline shaft 3 is driven to rotate through the external sleeve, and the rotation of the spline shaft 3 drives the rotation of the spline shaft 3. The rod 12 and the conical tooth a13 rotate, and the meshing between the conical tooth a13 and the conical tooth b14 is used to drive the rotation of the conical tooth b14, the connecting shaft 15 and the support plate 16, and then the rotation of the support plate 16 is used to drive the The rotation of the moving insulator 22 at the upper end and the moving contact 7 makes the connecting grooves 71 at both ends of the moving contact 7 contact with the connecting block 6 on the static contact 5, thereby realizing the closing operation of the present invention; The meshing between the teeth a13 and the conical teeth b14 improves the stability of the connection operation between the static contact 5 and the moving contact 7, and at the same time reduces the impact of the moving contact 7 and the static contact 5 when closing The utility model can control the rotation range of the spline shaft 3 and the rotating rod 12 by arranging the fan-shaped groove 31 and the limit rod 4, using the cooperation between the limit rod 4 and the fan-shaped groove 31, thereby effectively The matching connection between the connecting groove 71 and the connecting block 6 is completed; the connecting block 6 in the present invention adopts the structure of an isosceles trapezoid. Using this structure, the convenience and smoothness of the contact operation between the connecting block 6 and the connecting groove 71 can be increased. In general, the utility model has the advantages of stable and reliable action and small closing impact.

Claims (4)

1. The utility model provides a three-column horizontal rotation formula isolator, includes chassis and divide-shut brake switch, its characterized in that: the chassis is of a frame structure, a cross rod is fixedly arranged at the middle position inside the chassis, the cross rod is of a hollow structure, a rotating rod penetrates through the cross rod, three conical teeth a are uniformly and fixedly sleeved outside the rotating rod, two ends of the rotating rod protrude out of the chassis and are rotatably connected with the chassis through bearings, a spline shaft is fixedly connected at the left end of the rotating rod, a fan-shaped groove is formed in the outer part of the connecting end of the spline shaft and the rotating rod, a limiting rod is arranged on the left side surface of the chassis and is L-shaped, one end of the limiting rod is fixedly connected with the left side surface of the chassis, the other end of the limiting rod is positioned in the fan-shaped groove, conical teeth b are meshed at the upper end of the conical teeth a, the conical teeth a and the conical teeth b are vertically arranged, a connecting shaft is arranged at the center of the upper end of the, the lower surface of the supporting plate is rotationally connected with the upper surface of the cross rod through a turntable bearing; the divide-shut brake switch has threely, evenly sets up respectively in the top of chassis and horizontal pole, and it includes static insulator and movable insulator, static insulator has two, is the fixed both sides that set up in the chassis upper end of symmetry form respectively, and the upper end of static insulator is provided with the static contact, the one end and the static insulator fixed connection of static contact, the top and the below of the other end all fixedly are provided with the connecting block, the upper surface fixed connection of movable insulator lower extreme and supporting disk, upper end are provided with the moving contact, the moving contact is rectangular form, and the intermediate position at its both ends is provided with the spread groove.

2. The three-post horizontal rotary isolator of claim 1, wherein: the connecting block is in an isosceles trapezoid shape, and the lower bottom surface of the connecting block is fixedly connected with the fixed contact.

3. A three-column horizontal rotary isolating switch as claimed in claim 1 or 2, wherein: the connecting block is connected with the fixed contact in an integrated manner.

4. The three-post horizontal rotary isolator of claim 1, wherein: the center of the moving contact, the center of the supporting disc and the axle center of the connecting shaft are all located on the same straight line.

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