Isolating switch operating mechanism and isolating switch

Abstract

The present application discloses an isolating switch operating mechanism and an isolating switch, wherein the operating mechanism includes a mechanism housing, a drive shaft, an energy storage drive assembly, and a rotating seat, wherein the drive shaft is connected to the rotating seat via the energy storage drive assembly; the energy storage drive assembly includes a locking member and an energy storage spring, a stop portion is provided on the outer periphery of the rotating seat, the locking member is fixed in the mechanism housing, a first elastic arm and a second elastic arm are provided on the locking member, and a first unlocking protrusion and a second unlocking protrusion are provided on the outer periphery of the drive shaft; energy is stored in the energy storage spring during the rotation of the drive shaft, and when energy storage is completed, the first unlocking protrusion contacts the first elastic arm to release the limit on the stop portion, or the second unlocking protrusion contacts the second elastic arm to release the limit on the stop portion, and then the energy storage spring releases energy to rotate and switch the rotating seat between the open state position and the closed state position. The operating mechanism and isolating switch in the present application are rationally designed, and by providing an energy storage structure, fast and effective opening and closing can be achieved, which has good practicality.

Description

Technical Field

[0001] The present application relates to an isolating switch operating mechanism and an isolating switch, and belongs to the field of isolating switch structural design. Background Art

[0002] As an electrical switching device, a rotary disconnector should have an insulation distance between its moving and static contacts that meets specified requirements when in the open state, and the switch should have a clear disconnection mark. When in the closed state, the moving and static contacts should be able to carry the current under normal circuit conditions and the current under abnormal conditions within a specified time. Most rotary disconnectors include an operating mechanism and a switch body. The switch body includes multiple stacked switch units, each of which contains a moving contact mechanism and a static contact. The moving contact mechanisms in all switch units are connected to the operating mechanism. During opening and closing operations, the operating mechanism is manually rotated by turning the handle, which in turn drives the moving contact mechanism to rotate, thereby simultaneously switching multiple circuits on and off. Traditional rotary disconnector operating mechanisms lack an energy storage drive structure, and turning the handle directly drives the moving contact mechanism to rotate. In actual use, this can lead to technical issues such as inadequate opening and closing and slow opening and closing speeds. Summary of the Invention

[0003] In view of the deficiencies pointed out in the background technology, the present application aims to provide an isolating switch operating mechanism with fast and reliable opening and closing, and an isolating switch having the operating mechanism.

[0004] The technical solution to achieve the purpose of this application is:

[0005] The present application provides an operating mechanism for an isolating switch, comprising a mechanism housing, a drive shaft, an energy storage drive assembly and a rotating seat arranged in the mechanism housing, wherein the drive shaft and the rotating seat are coaxially arranged up and down, and the drive shaft is connected to the rotating seat through the energy storage drive assembly; the drive shaft is connected to a handle outside the mechanism housing through a connecting shaft, and the rotating seat can rotate around its axis between an open state position and a closed state position; the energy storage drive assembly comprises a locking member and an energy storage spring, the energy storage spring is connected between the drive shaft and the rotating seat, a stop portion is provided on the outer periphery of the rotating seat, the locking member is fixed in the mechanism housing, and the locking member It includes a first elastic arm and a second elastic arm that stop at the stop part when the rotating seat is in the open state position and the closed state position respectively, and the outer periphery of the driving shaft is provided with a first unlocking protrusion for releasing the first elastic arm from limiting the stop part and a second unlocking protrusion for releasing the second elastic arm from limiting the stop part; the energy storage spring is stored in energy when the driving shaft rotates, and when the energy storage is completed, the first unlocking protrusion contacts the first elastic arm to release the limit on the stop part or the second unlocking protrusion contacts the second elastic arm to release the limit on the stop part, and then the energy storage spring releases energy to make the rotating seat rotate and switch between the open state position and the closed state position.

[0006] Preferably, the mechanism housing includes a base and an upper cover arranged on the upper part of the base, a first limiting structure for limiting the rotation stroke of the rotating seat is arranged between the rotating seat and the base, and a second limiting structure for limiting the rotation stroke of the driving shaft is arranged between the driving shaft and the upper cover.

[0007] Preferably, the first limiting structure includes a first limiting block formed on one of the base and the rotating seat, and a first arc-shaped hole formed on the other, and the first limiting block is movably limited in the first arc-shaped hole.

[0008] Preferably, the second limiting structure includes a second limiting block formed on one of the upper cover and the driving shaft, and a second arc-shaped hole formed on the other, and the second limiting block is movably limited in the second arc-shaped hole.

[0009] Preferably, the driving shaft and the rotating seat are coaxially connected via a shaft connection structure.

[0010] Preferably, the energy storage spring is a torsion spring, which includes a torsion spring body sleeved on the shaft connection structure and torsion spring arms connected to the two ends of the torsion spring body and arranged opposite to each other. The rotating seat and the driving shaft are respectively provided with a first stop and a second stop extending between the two torsion spring arms. When the driving shaft and the rotating seat rotate relative to each other, the two torsion spring arms are respectively connected to the first stop and the second stop.

[0011] Preferably, the shaft connection structure includes a positioning shaft cylinder formed on one of the rotating seat and the driving shaft, and a positioning circular shaft formed on the other, and the positioning circular shaft is inserted into the positioning shaft cylinder.

[0012] Preferably, two stop portions are centrally symmetrically provided on the rotating seat, two locking members are correspondingly provided, a first elastic arm and a first and a second elastic arm are integrally formed on each locking member, and two pairs of the first unlocking protrusion and the second unlocking protrusion are correspondingly provided.

[0013] Preferably, the first unlocking protrusion and the second unlocking protrusion are arc-shaped protrusions, triangular protrusions or trapezoidal protrusions.

[0014] The present application also provides an isolating switch, comprising a switch main body and an operating mechanism connected to the upper end of the switch main body. The operating mechanism adopts the operating mechanism described above, and the bottom of the rotating seat is connected to the moving contact mechanism in the switch main body.

[0015] This application has positive effects: the structure of the operating mechanism of this application and the disconnector with the operating mechanism has been optimized. Specifically, by arranging an energy storage drive component in the operating mechanism, it can first store energy and then release it during the opening and closing operations, providing greater energy for the rotating seat to make it rotate quickly to the opening state position or the closing state position, so as to achieve fast and effective opening and closing, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] These and / or other aspects, features and advantages of the present disclosure will become more clear and easily understood through the following description of embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 A three-dimensional structural diagram of the operating mechanism in this application;

[0018] Figure 2 for Figure 1 A front sectional view of the operating mechanism shown;

[0019] Figure 3 This is a schematic diagram of the structure of the operating mechanism in this application after removing the mechanism shell and handle;

[0020] Figure 4 A top view of the drive shaft in this application;

[0021] Figure 5 A three-dimensional diagram of the drive shaft in this application;

[0022] Figure 6 A three-dimensional diagram of the rotating seat in this application;

[0023] Figure 7 A three-dimensional cross-sectional view of the operating mechanism in this application;

[0024] Figure 8 An exploded view of the operating mechanism in this application;

[0025] Figure 9 This is a structural diagram of the isolating switch in this application.

[0026] The reference numerals shown in the figure are: 1-mechanism housing; 11-base; 111-positioning circular groove; 12-upper cover; 13-second arc-shaped hole; 2-drive shaft; 21-first unlocking protrusion; 22-second unlocking protrusion; 23-second stop platform; 3-rotating seat; 31-stop part; 32-first stop platform; 4-connecting shaft; 5-handle; 6-locking member; 61-first elastic arm; 62-second elastic arm; 7-torsion spring; 71-torsion spring body; 72-torsion spring arm; 8-first limit block; 9-first arc-shaped hole; 10-second limit block; 100-positioning shaft cylinder; 101-positioning circular shaft; 01-switch body; 02-operating mechanism. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application.

[0028] Example 1

[0029] In this embodiment, an isolating switch operating mechanism, such as Figures 1 to 8 As shown, it includes a mechanism shell 1, and a drive shaft 2, an energy storage drive assembly and a rotating seat 3 arranged in the mechanism shell 1, the drive shaft 2 and the rotating seat 3 are coaxially arranged up and down, and the drive shaft 2 is connected to the rotating seat 3 through the energy storage drive assembly; the drive shaft 2 is connected to the handle 5 outside the mechanism shell 1 through the connecting shaft 4, so that the drive shaft 2 can be conveniently driven to rotate from the outside through the handle 5; the rotating seat 3 can rotate around its axis between the open state position and the closed state position; the energy storage drive assembly includes a locking member 6 and an energy storage spring, the energy storage spring is connected between the drive shaft 2 and the rotating seat 3, a stop portion 31 is provided on the outer periphery of the rotating seat 3, the locking member 6 is fixed in the mechanism shell 1, and the locking member 6 It includes a first elastic arm 61 and a second elastic arm 62 that stop the stop part 31 when the rotating seat 3 is in the open state position and the closed state position respectively, and the outer periphery of the driving shaft 2 is provided with a first unlocking protrusion 21 for releasing the first elastic arm 61 from limiting the stop part 31 and a second unlocking protrusion 22 for releasing the second elastic arm 62 from limiting the stop part 31; the energy storage spring is stored in energy during the rotation of the driving shaft 2, and when the energy storage is completed, the first unlocking protrusion 21 contacts the first elastic arm 61 to release the limit on the stop part 31 or the second unlocking protrusion 22 contacts the second elastic arm 62 to release the limit on the stop part 31, and then the energy storage spring releases energy to make the rotating seat 3 rotate and switch between the open state position and the closed state position.

[0030] In the operating mechanism structure of this embodiment, by setting an energy storage drive component, it is possible to store energy first and then release it during the opening and closing operations, thereby providing greater energy for the rotating seat 3 to make it rotate quickly to the opening state position or the closing state position, so as to achieve fast and effective opening and closing, and has good practicality; during operation, the drive shaft 2 is controlled to rotate, and the energy storage spring can be stored in the rotation process of the drive shaft 2, and the elastic force released by the energy storage spring is used to drive the rotating seat 3 to rotate, thereby driving the moving contact mechanism connected to the rotating seat 3 to rotate, and realizing the opening and closing operations. Specifically, in the opening state, the rotating seat 3 is in the opening state position and is stopped by the first elastic arm 61 at the stop portion 31 for limitation. When closing is required, the drive shaft 2 is rotated to store energy in the energy storage spring, and after the energy storage is completed, the rotating seat 3 is driven to rotate. When the switch is opened, the first unlocking protrusion 21 just reaches the first elastic arm 61, and the first unlocking protrusion 21 presses the first elastic arm 61 to make it disengage from the stop limit of the stop part 31. At this time, the rotating seat 3 quickly rotates to the closed state position under the driving force of the energy storage spring, completing the closing process. In the closed state, the second elastic arm 62 abuts on the stop part 31 to stop the rotating block in the opposite direction; when opening the switch, the drive shaft 2 is rotated in the opposite direction to store energy of the energy storage spring, and when the energy storage is completed, the second unlocking protrusion 22 just reaches the second elastic arm 62, and the second unlocking protrusion 22 presses the second elastic arm 62 to make it disengage from the stop limit of the stop part 31. At this time, the rotating seat 3 quickly rotates to the open state position under the driving force of the energy storage spring, completing the opening process.

[0031] In this embodiment, the mechanism housing 1 includes a base 11 and an upper cover 12 provided on the upper portion of the base 11. The upper cover 12 covers the upper portion of the base 11 to facilitate assembly of the components inside the mechanism housing 1. A first limiting structure for limiting the rotational travel of the rotating seat 3 is provided between the rotating seat 3 and the base 11, and a second limiting structure for limiting the rotational travel of the drive shaft 2 is provided between the drive shaft 2 and the upper cover 12. The first limiting structure and the second limiting structure can reasonably and effectively limit the rotation angle of the rotating seat 3 and the drive shaft 2 to prevent excessive rotation. As a feasible solution, the rotation angle of the rotating seat 3 and the drive shaft 2 can be limited to 90 degrees.

[0032] For further information, see Figure 2 and Figure 6 As shown, the first limiting structure includes a first limiting block 8 formed on the base 11, and a first arc-shaped hole 9 formed on the rotating seat 3. The first limiting block 8 is movably limited in the first arc-shaped hole 9. By controlling the curvature of the first arc-shaped hole 9, the rotatable angle of the first limiting block 8 can be limited, that is, the rotation angle of the rotating seat 3 can be limited; as a variation, the first limiting block 8 can be formed on the rotating seat 3, and the corresponding first arc-shaped hole 9 is formed on the base 11.

[0033] Furthermore, Figure 7 As shown, the second limiting structure includes a second limiting block 10 formed on the drive shaft 2, and a second arc-shaped hole 13 formed on the upper cover 12. The second limiting block 10 is movably limited in the second arc-shaped hole 13; by controlling the curvature of the second arc-shaped hole 13, the rotatable angle of the second limiting block 10 can be limited, that is, the rotation angle of the drive shaft 2 can be limited; as a variation, the second limiting block 10 can be formed on the upper cover 12, and the corresponding second arc-shaped hole 13 is formed on the drive shaft 2.

[0034] Combine Figure 2 and Figure 7 As shown, the drive shaft 2 and the rotating seat 3 in this embodiment are coaxially connected through an axial connection structure to facilitate assembly and positioning; as a specific implementation scheme of the axial connection structure in this application: the axial connection structure includes a positioning shaft cylinder 100 formed on one of the rotating seat 3 and the drive shaft 2, and a positioning circular shaft 101 formed on the other, and the positioning circular shaft 101 is inserted into the positioning shaft cylinder 100, so that the coaxial connection between the drive shaft 2 and the rotating seat 3 can be achieved.

[0035] The energy storage spring used in this embodiment is a torsion spring 7, which includes a torsion spring body 71 sleeved on the shaft connection structure and torsion spring arms 72 connected to the two end portions of the torsion spring body 71 and arranged opposite to each other. The rotating seat 3 and the driving shaft 2 are respectively provided with a first stop 32 and a second stop 23 extending between the two torsion spring arms 72. When the driving shaft 2 and the rotating seat 3 rotate relative to each other, the two torsion spring arms 72 are respectively connected to the first stop 32 and the second stop 23. When the driving shaft 2 and the rotating seat 3 rotate relative to each other to store energy, the first stop 32 and the second stop 23 act on the two torsion spring arms 72 to compress the torsion spring body 71. When the energy storage spring releases energy, the driving shaft 2 and the rotating seat 3 rotate in opposite directions relative to each other under the action of the two torsion spring arms 72.

[0036] In order to increase the stability of the operating mechanism 02 during operation, the rotating seat 3 in this embodiment is provided with two stop portions 31 symmetrically on the center, and two locking members 6 are provided correspondingly. Each locking member 6 is integrally formed with a first elastic arm 61 and a first and second elastic arm 62. The first unlocking protrusion 21 and the second unlocking protrusion 22 are provided with two pairs, see FIG. Figure 8 shown.

[0037] The first unlocking protrusion 21 and the second unlocking protrusion 22 in this embodiment are triangular protrusions. In actual operation, the first unlocking protrusion 21 and the second unlocking protrusion 22 can also be arc-shaped protrusions, triangular protrusions or trapezoidal protrusions. This arrangement prevents the first unlocking protrusion 21 and the second unlocking protrusion 22 from getting stuck with the first elastic arm 61 and the second elastic arm 62 when the drive shaft 2 rotates, thereby ensuring smooth and flexible movement.

[0038] Example 2

[0039] In this embodiment, an isolating switch has a structure as follows Figure 9 As shown, it includes a switch body 01 and an operating mechanism 02 connected to the upper end of the switch body 01. The operating mechanism 02 adopts the operating mechanism described in Example 1. The bottom of the rotating seat 3 is connected to the moving contact mechanism in the switch body 01. When the rotating seat 3 rotates, the moving contact mechanism is driven to rotate, thereby achieving contact and separation with the static contact, and correspondingly conducting and disconnecting the circuit.

[0040] Obviously, the above embodiments of the present application are merely examples for the purpose of clearly illustrating the present application and are not intended to limit the implementation methods of the present application. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. However, obvious variations or modifications that fall within the spirit of the present application remain within the scope of protection of the present application.

Claims

1. An isolating switch operating mechanism, comprising a mechanism housing (1), and a drive shaft (2), an energy storage drive assembly, and a rotating seat (3) arranged in the mechanism housing (1), wherein the drive shaft (2) and the rotating seat (3) are coaxially arranged in an upper and lower direction, the drive shaft (2) and the rotating seat (3) are coaxially connected via a shaft connection structure, and the drive shaft (2) is connected to the rotating seat (3) via the energy storage drive assembly; the drive shaft (2) is connected to a handle (5) outside the mechanism housing (1) via a connecting shaft (4), and the rotating seat (3) can rotate around its axis between an opening state position and a closing state position; and is characterized in that The energy storage drive assembly comprises a locking member (6) and an energy storage spring, wherein the energy storage spring is connected between the drive shaft (2) and the rotating seat (3), and a stop portion (31) is provided on the outer periphery of the rotating seat (3). The locking member (6) is fixed in the mechanism housing (1), and the locking member (6) comprises a first elastic arm (61) and a second elastic arm (62) which stop at the stop portion (31) when the rotating seat (3) is in the open state position and the closed state position, respectively. A first unlocking protrusion (21) for releasing the first elastic arm (61) from limiting the stop portion (31) and a second unlocking protrusion (22) for releasing the second elastic arm (62) from limiting the stop portion (31) are correspondingly provided on the outer periphery of the drive shaft (2); the drive shaft (2) rotates During the movement, energy is stored in the energy storage spring, and when the energy storage is completed, the first unlocking protrusion (21) contacts the first elastic arm (61) to release the limit on the stop portion (31), or the second unlocking protrusion (22) contacts the second elastic arm (62) to release the limit on the stop portion (31), so that the energy storage spring releases energy to rotate the rotating seat (3) between the opening state position and the closing state position; the mechanism housing (1) comprises a base (11) and an upper cover (12) provided on the upper part of the base (11); a first limiting structure for limiting the rotation stroke of the rotating seat (3) is provided between the rotating seat (3) and the base (11); and a second limiting structure for limiting the rotation stroke of the drive shaft (2) is provided between the drive shaft (2) and the upper cover (12).

2. The isolating switch operating mechanism according to claim 1, characterized in that: The base (11) is provided with a positioning circular groove (111), the rotating seat (3) is installed in the positioning circular groove (111), the locking member (6) is fixed on the base (11), and the stop portion (31) is a stop block structure formed on the rotating seat (3).

3. The isolating switch operating mechanism according to claim 1, characterized in that: The first limiting structure comprises a first limiting block (8) formed on one of the base (11) and the rotating seat (3), and a first arc-shaped hole (9) formed on the other, wherein the first limiting block (8) is movably limited in the first arc-shaped hole (9).

4. The isolating switch operating mechanism according to claim 1, characterized in that: The second limiting structure comprises a second limiting block (10) formed on one of the upper cover (12) and the drive shaft (2), and a second arc-shaped hole (13) formed on the other, wherein the second limiting block (10) is movably limited in the second arc-shaped hole (13).

5. The isolating switch operating mechanism according to claim 1, characterized in that: The energy storage spring is a torsion spring (7), which includes a torsion spring body (71) sleeved on the shaft connection structure and torsion spring arms (72) connected to the two ends of the torsion spring body (71) and arranged opposite to each other. The rotating seat (3) and the driving shaft (2) are respectively provided with a first stop (32) and a second stop (23) extending between the two torsion spring arms (72). When the driving shaft (2) and the rotating seat (3) rotate relative to each other, the two torsion spring arms (72) are respectively connected to the first stop (32) and the second stop (23).

6. The isolating switch operating mechanism according to claim 1, characterized in that: The shaft connection structure comprises a positioning shaft cylinder (100) formed on one of the rotating seat (3) and the driving shaft (2), and a positioning circular shaft (101) formed on the other, wherein the positioning circular shaft (101) is inserted into the positioning shaft cylinder (100).

7. The isolating switch operating mechanism according to claim 1, characterized in that: Two stoppers (31) are centrally symmetrically arranged on the rotating seat (3), two locking members (6) are correspondingly arranged, and each locking member (6) is integrally formed with a first elastic arm (61) and a first and second elastic arm (62), and two pairs of the first unlocking protrusion (21) and the second unlocking protrusion (22) are correspondingly arranged.

8. The isolating switch operating mechanism according to claim 1, characterized in that: The first unlocking protrusion (21) and the second unlocking protrusion (22) are arc-shaped protrusions, triangular protrusions or trapezoidal protrusions.

9. An isolating switch, comprising a switch body (01) and an operating mechanism (02) connected to the upper end of the switch body (01), characterized in that: The operating mechanism (02) adopts the operating mechanism described in any one of claims 1 to 8, and the bottom of the rotating seat (3) is connected to the moving contact mechanism in the switch body (01).

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