CN209859829U - Three-position switch manual operation mechanical interlocking device - Google Patents

Abstract

The utility model discloses a manual mechanical interlocking device of a three-position switch, which is provided with a fixed panel; the panel comprises two groups of transmission mechanisms and interlocking mechanisms between the mechanisms. Each group of transmission mechanisms is provided with an operation stop block which can rotate around the fixed shaft, the stop block is meshed with the gear, and the gear is driven by the handle on the same transmission shaft. The panel also comprises two indicating disks, a linear interlocking plate, a tension spring, an L-shaped interlocking plate and a limiting plate. The grounding indicator panel is locked by a linear interlocking plate and a tension spring, and the isolation indicator panel is locked by an L-shaped interlocking plate; the two groups of transmission gears are interlocked by a limiting plate, the limiting plate and the L-shaped interlocking plate are connected into a whole, and the two interlocking plates are mutually limited; therefore, the transmission mechanism and the indicating disc which are grounded or isolated are ensured to be in a synchronous locking or unlocking state, and the grounding and the isolation cannot be operated simultaneously. The device has simple structure and reliable transmission.

Description

Three-position switch manual operation mechanical interlocking device

Technical Field

The utility model belongs to the technical field of aerify the cabinet, concretely relates to three station switch manually operation mechanical interlock.

Background

At present, a three-station operating device is one of main parts of an inflatable cabinet, and controls the sequential actions of an isolating switch and a grounding switch to realize three stations of connection, isolation and grounding. The three-position switch is required to be manually operated under different occasions, and in the operation process, in order to prevent misoperation and ensure the personal safety of workers, besides an electric interlock, a related mechanical interlock is required to be designed between the mechanism and the mechanism.

CN101154529A discloses a position locking mechanism for manual operation of a direct-acting three-position switch, which comprises an operating mechanism panel, an indicating dial, a positioning ring and an interlocking mechanism composed of a guide block, a locking plate, a limiting plate, a connecting plate, a baffle interlocking plate, a positioning plate, a butt plate, a buckle plate and a limiting pin; through the operation of the interlocking mechanism, the three-position disconnecting switch can be accurately positioned at any position, but the structure is complex.

CN108538676A discloses a three station switch operating device interlock, belongs to looped netowrk cabinet technical field. The mechanism chamber panel is provided with a load switch operation hole and a grounding switch operation hole; the interlocking separation blade is rotatably connected with the mechanism chamber panel through a rotating shaft, and the interlocking separation blade rotates relative to the mechanism chamber panel to expose the load switch operation hole or the grounding switch operation hole; the interlocking sliding sheet is connected with the interlocking separation blade in a sliding manner through a transmission shaft, and the interlocking sliding sheet slides relative to the mechanism chamber panel to drive the interlocking separation blade to rotate relative to the mechanism chamber panel; the mechanism interlocking fixing frame is provided with three locking holes, the interlocking sliding sheet is provided with a through hole matched with the locking holes, and the through hole is matched with one of the locking holes; the retaining member is arranged in the through hole and the locking hole in a penetrating mode, and the retaining member is used for limiting the movement of the interlocking sliding sheet relative to the interlocking fixing frame of the mechanism.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three station manually operation mechanical interlock that simple structure is reliable, simple to operate, transmission are reliable.

The technical scheme of the utility model is that: the manual operation mechanical interlocking device of the three-station switch comprises a fixed operation panel, an isolation transmission mechanism, a grounding transmission mechanism and an interlocking mechanism between the two groups of transmission mechanisms, wherein the isolation transmission mechanism and the grounding transmission mechanism are arranged on the fixed operation panel; the transmission mechanism comprises a grounding handle and a grounding gear which are sleeved on the shaft, an isolation handle and an isolation gear which are sleeved on the shaft, and a grounding stop block and an isolation stop block which shield the manual operation port; the interlocking mechanism comprises a limiting plate, an L-shaped interlocking plate, a straight interlocking plate and a tension spring, wherein the limiting plate, the L-shaped interlocking plate, the straight interlocking plate and the tension spring are positioned between the two transmission gears.

Specifically, in the transmission mechanism, the isolation gear is meshed with the isolation stop block; the grounding gear is meshed with the grounding stopper.

Specifically, a limiting plate fixing shaft on the limiting plate penetrates through a panel notch and then is fixed with the L-shaped interlocking plate through a pin, the linear interlocking plate is fixed on the panel through a shaft, and one end of the linear interlocking plate is fixed through a tension spring.

Specifically, in the transmission mechanism, the isolation gear is meshed with the isolation stop block, the grounding gear is meshed with the grounding stop block, and when the corresponding handle is rotated, the corresponding manual operation opening is exposed on the panel.

Furthermore, one arc end of the L-shaped interlocking plate is clamped in the groove of the isolation indicating disc; the round hole is matched with the fixed shaft of the limit plate. When the tension spring is in a normal state, the tip of the linear interlocking plate is clamped in the groove of the grounding indicating disc.

Drawings

Fig. 1 is the front and back structural schematic diagram of the three-position switch manual operation mechanical interlocking device of the utility model, wherein the left side diagram is the front side, and the right side diagram is the back side.

Fig. 2 is the internal structure positive and negative motion schematic diagram of the three-position switch manual operation mechanical interlocking device during isolation operation, wherein the left side drawing is the front, and the right side drawing is the reverse.

Fig. 3 is the schematic diagram of the front and back movement of the internal structure during the grounding operation of the present invention, wherein the left side diagram is the front side and the right side diagram is the back side.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1-3, the utility model relates to a three-position switch manual operation mechanical interlocking device. Wherein the state shown in figure 1 is the initial state of the interlock. The interlocking device comprises a fixed operation panel 1, an isolation transmission mechanism, a grounding transmission mechanism and an interlocking mechanism between the two groups of transmission mechanisms, wherein the isolation transmission mechanism and the grounding transmission mechanism are arranged on the fixed operation panel. A grounding indicator panel 2 and an isolation indicator panel 3 are mounted on the front surface of the operation panel 1 through a rotating shaft. The transmission mechanism comprises a grounding handle 10 and a grounding gear 12 which are sleeved on a rotating shaft 10-1, an isolation handle 9 and an isolation gear 11 which are sleeved on the rotating shaft 9-1, and a grounding stop block 4 and an isolation stop block 5. The operation panel 1 has an operation opening, and in an initial state, the operation opening of the operation panel is shielded by the grounding stopper 4 and the isolation stopper 5.

The interlocking mechanism comprises a limiting plate 8 positioned between the two transmission gears, an L-shaped interlocking plate 6, a straight interlocking plate 7 and a tension spring 13. Wherein the L-shaped interlocking plate 6 and the straight interlocking plate 7 are arranged on the back of the operation panel.

Specifically, in the transmission mechanism, the isolation stopper 5 and the grounding stopper 4 are both provided with gear sectors. The isolation gear 11 is meshed with the isolation stop block 5, when the isolation handle 9 is rotated anticlockwise, the shaft 9-1 drives the isolation gear 11 to rotate, so that the isolation stop block 5 rotates clockwise around the fixed shaft 1-4, and the stop block 5 leaves the initial position to expose an isolation operation opening shielded by the stop block 5; similarly, the grounding gear 12 is engaged with the grounding stopper 4, when the grounding handle 10 is rotated counterclockwise, the shaft 10-1 drives the grounding gear 12, and the grounding stopper 4 rotates clockwise around the fixed shaft 1-3, and leaves the initial position to expose the grounding operation opening shielded by the grounding stopper.

Specifically, the operation panel also has notches 1-1 and 1-2. In the interlocking mechanism, the lower end of a limiting plate 8 is sleeved in a notch 1-1 of an operation panel by a limiting plate fixing shaft 8-1; the L-shaped interlocking plate 6 is fixed in the notch 1-2 of the operation panel together by the upper end of the limiting plate 8 through the limiting plate fixing shaft 8-1 and the pin 8-2. Because the whole mechanism is in a vertical state, the lower tip 8-4 of the limiting plate naturally falls on the groove 11-1 on the isolating gear under the action of the dead weight in the initial state. The straight interlocking plate 7 is fixed on the operation panel 1 by a shaft 1-5, one end is fixed by a tension spring 13, and the other end is provided with a tip 7-1.

Furthermore, one end of the L-shaped interlocking plate 6 is arc-shaped, and the arc-shaped end 6-1 is clamped in the groove 3-1 of the isolation indicating disc; the round hole 6-2 is matched with the fixed shaft 8-1 of the limiting plate, namely the limiting plate 8 and the L-shaped interlocking plate 6 move synchronously. When the tension spring 13 is in a normal state, the tip 7-1 of the in-line interlocking plate is clamped in the groove 2-1 of the grounding indicating plate 2.

When the manual isolation operation is performed (namely, in the state shown in fig. 2), the isolation handle 9 is rotated counterclockwise first, the shaft 9-1 drives the isolation gear 11 to rotate counterclockwise, and the isolation stop 5 synchronously rotates to expose the operation opening shielded by the isolation stop.

Because the groove slope on the gear is not large, when the isolating gear is rotated, the tip 8-4 under the limiting plate naturally slides out of the groove under the condition of no other block, namely, the tip is separated from the isolating gear groove 11-1 and slides on the outer contour of the isolating gear. At the moment, the limiting plate is sleeved in the notches 1-1 and 1-2 on the panel by a shaft, the tip end of the limiting plate is separated from the groove, when the limiting plate slides to the outer contour, the limiting plate integrally moves upwards, and the tip end 8-3 on the limiting plate is just clamped into the groove 12-1 of the grounding gear due to the certain length of the limiting plate, so that the grounding transmission mechanism is interlocked.

The limiting plate and the L-shaped interlocking plate on the back are fixed through the limiting plate fixing shaft 8-1, so that when the limiting plate moves upwards, the L-shaped interlocking plate moves upwards synchronously, namely the arc-shaped end 6-1 of the L-shaped interlocking plate on the back is separated from the groove 3-1 of the isolation indicating disc upwards, and the isolation indicating disc is unlocked; meanwhile, the L-shaped interlocking plate moves upwards, the top end of the L-shaped interlocking plate just limits the rotation angle of the linear interlocking plate, namely the linear interlocking plate 7 is limited, so that the tip 7-1 of the linear interlocking plate cannot be separated from the groove 2-1 of the grounding indicating disc, and indicating interlocking is formed.

When manual grounding operation is performed (namely, in the state shown in fig. 3), the grounding handle 10 is rotated counterclockwise, the shaft 10-1 drives the grounding gear 12 to rotate counterclockwise, and the grounding stopper 4 synchronously rotates to expose the operation opening shielded by the grounding stopper.

At the moment, the tip 7-1 of the I-shaped interlocking plate can be completely separated from the groove 2-1 of the grounding indicating disc, and when the I-shaped interlocking plate is unlocked, the I-shaped interlocking plate 7 rotates clockwise around the shaft 1-5, the tension spring 14 at the other end is pulled to be pressed downwards, the L-shaped interlocking plate 6 is limited to move upwards, and the indicating interlocking is formed.

Meanwhile, the outer contour of the grounding gear 12 is connected with the upper tip 8-3 of the limiting plate, and the lower tip 8-4 of the grounding gear is clamped in the isolating gear groove 11-1 to form transmission interlocking.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. The utility model provides a three station switch manually operation mechanical interlock which characterized in that: the device comprises a fixed operation panel (1), an isolation transmission mechanism, a grounding transmission mechanism and an interlocking mechanism between the two transmission mechanisms, wherein the isolation transmission mechanism and the grounding transmission mechanism are arranged on the fixed operation panel, and a grounding indicator panel (2) and an isolation indicator panel (3) are arranged on the front surface of the operation panel (1) through a rotating shaft; the transmission mechanism comprises a grounding handle (10) and a grounding gear (12) which are sleeved on the shaft, an isolation handle (9) and an isolation gear (11) which are sleeved on the shaft, and a grounding stop block (4) and an isolation stop block (5) which shield the manual operation port; the interlocking mechanism comprises a limiting plate (8) positioned between the two transmission gears, an L-shaped interlocking plate (6), a straight interlocking plate (7) and a tension spring (13).

2. A three-position switch manually operated mechanical interlock as defined in claim 1, wherein: in the transmission mechanism, the isolation gear (11) is meshed with the isolation stop block (5); the grounding gear (12) is meshed with the grounding stop block (4).

3. A three-position switch manually operated mechanical interlock as defined in claim 1, wherein: in the interlocking mechanism, a limiting plate fixing shaft (8-1) on the limiting plate (8) penetrates through a panel notch (1-2) and then is fixed with an L-shaped interlocking plate (6) through a pin (8-2), the linear interlocking plate (7) is fixed on the panel (1) through a shaft (1-5), and one end of the linear interlocking plate is fixed through a tension spring (13).

4. A three-position switch manually operated mechanical interlock as defined in claim 3, wherein: one end of the L-shaped interlocking plate is arc-shaped, and the arc-shaped end (6-1) is clamped in the groove (3-1) of the isolation indicating disc; the round hole (6-2) is matched with the fixed shaft (8-1) of the limit plate, and when the tension spring (13) is in a normal state, the tip (7-1) of the linear interlocking plate is clamped in the groove (2-1) of the grounding indicating plate.