Safety lock mechanism of dual-power automatic change-over switch

Abstract

The utility model provides a safety lock mechanism of a dual-power supply automatic change-over switch, which comprises a switch shell, an operating handle is arranged in the switch shell, an operating port corresponding to the operating handle is arranged on the switch shell, a slidable mobile control board is arranged in the switch shell, and the mobile control board is connected with the operating handle. An operation opening is formed in the switch shell, an opening corresponding to the operation opening is formed in the movable control board, a locking part extending to the outer side of the switch shell is arranged on the movable control board, a touch pressure switch is arranged in the switch shell, a touch pressure part corresponding to the touch pressure switch is arranged on the movable control board, and the touch pressure switch is connected with the touch pressure part. The movable control board is provided with a protruding pushing part, the switch shell is provided with a pushing groove corresponding to the pushing part, and the pushing groove is arranged in the moving direction of the movable control board. The double-power-supply automatic change-over switch can be prevented from being operated by mistake by moving the control panel.

Description

Technical Field

[0001] The utility model relates to the technical field of power conversion switches, and particularly relates to a safety lock mechanism for a dual-power automatic transfer switch. Background Art

[0002] A common power supply and standby power supply transfer switch can perform manual operation for power conversion (a manual operation handle is provided on the transfer switch), and can also perform electric operation for power conversion (a driving execution mechanism for driving the handle to act is provided inside the transfer switch).

[0003] When the circuit needs to be overhauled, the handle needs to be rotated to the off position (both the common power supply and the standby power supply are in the off and non-power supply state). To ensure safety during overhaul, the handle needs to be controlled to avoid misoperation and cause the common power supply or the standby power supply to be enabled.

[0004] And how to avoid misoperation of the dual-power automatic transfer switch is the problem to be solved in this application. Summary of the Utility Model

[0005] In view of the problems pointed out in the background art, the utility model provides a safety lock mechanism for a dual-power automatic transfer switch to solve the above technical problems.

[0006] The technical solution of the utility model is realized as follows:

[0007] A safety lock mechanism for a dual-power automatic transfer switch includes a switch housing. An operating handle is provided inside the switch housing. An operation opening corresponding to the operating handle is provided on the switch housing. A slidable moving control board is provided inside the switch housing. An opening corresponding to the operation opening is provided on the moving control board. A locking part extending to the outside of the switch housing is provided on the moving control board. A touch switch is provided inside the switch housing. A touch part corresponding to the touch switch is provided on the moving control board. A protruding pushing part is provided on the moving control board. A pushing groove corresponding to the pushing part is provided on the switch housing. The pushing groove is arranged along the moving direction of the moving control board.

[0008] The utility model is further provided that a protruding gear protrusion is provided on the side wall of the moving control board. A gear bar is provided inside the switch housing. The gear bar extends along the length direction of the moving control board. The gear bar is provided with three gear grooves, and the three gear grooves are spaced at intervals along the length direction of the gear bar.

[0009] The utility model is further provided that the touch part is slidably connected to the gear bar.

[0010] The present utility model is further configured such that a circuit board is provided inside the switch housing, and the touch switch is connected to the circuit board.

[0011] The present utility model is further configured such that a padlock hole is provided on the locking portion.

[0012] The present utility model is further configured such that a guiding groove is provided on the moving control board, and a guiding portion cooperating with the guiding groove is provided on the switch housing.

[0013] Adopting the above technical solution, the beneficial effect of the present utility model is as follows:

[0014] The safety lock mechanism of the dual-power automatic transfer switch provided by the present utility model can prevent the dual-power automatic transfer switch from being misoperated through the moving control board. In the moving direction of the moving control board, the moving control board has three working states, which are the first working state, the second working state, and the third working state in sequence. When the moving control board is in the first working state, the touch portion contacts the touch switch (at this time, the touch switch is activated, and a control signal is sent through the circuit board, so that the driving execution mechanism for driving the handle cannot work), and the moving control board blocks the operation port (at this time, manual operation of the handle through the operation port is not possible). When the moving control board is in the second working state, the touch portion contacts the touch switch, and the opening on the moving control board corresponds to the operation port (at this time, manual operation of the handle through the operation port is possible). When the moving control board is in the third working state, the touch portion is separated from the touch switch (at this time, the driving execution mechanism for driving the handle can drive the handle to move), and the moving control board blocks the operation port. In this way, three control states for misoperation are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Structural schematic diagram of the first working state of the present utility model Figure 1 .

[0017] Figure 2 Structural schematic diagram of the first working state of the present utility model Figure 2 .

[0018] Figure 3 Structural schematic diagram of the second working state of the present utility model Figure 1 .

[0019] Figure 4 Structural schematic of the second working state of the present utility model Figure 2 。

[0020] Figure 5 Structural schematic of the third working state of the present utility model Figure 1 。

[0021] Figure 6 Structural schematic of the third working state of the present utility model Figure 2 。

[0022] Figure 7 Exploded schematic diagram of the present utility model. Specific implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] As follows for reference Figures 1-7 The present utility model will be described as follows:

[0025] Embodiment 1: A safety lock mechanism for a dual-power automatic transfer switch, including a switch housing 1. An operating handle 2 is provided inside the switch housing 1. The switch can be operated through the operating handle 2 to switch between the normal power supply and the standby power supply (the operating handle 2 can be manually operated, and the operating handle 2 can be operated through an electric actuator). The operating handle 2 is arranged inside the switch housing 1. An operating port 3 corresponding to the operating handle 2 is provided on the switch housing 1. A tool is used to enter the inside of the switch housing 1 through the operating port 3 to operate the operating handle 2.

[0026] A slidable moving control board 4 is provided inside the switch housing 1. The moving control board 4 is slidably connected to the switch housing 1. A guiding groove 14 is provided on the moving control board 4, and a guiding portion 15 cooperating with the guiding groove 14 is provided on the switch housing 1.

[0027] An opening 5 corresponding to the operating port 3 is provided on the moving control board 4. When the moving control board 4 moves to a state where the opening 5 corresponds to the operating port 3, the operating handle 2 can be operated through the operating port 3.

[0028] The described mobile control board 4 is provided with a protruding pushing portion 21, and the switch housing 1 is provided with a pushing groove 22 corresponding to the pushing portion 21. The pushing groove 22 is arranged along the moving direction of the mobile control board 4, and the pushing portion 21 extends out from the pushing groove 22. The mobile control board 4 can be manually driven to move through the pushing portion 21.

[0029] The mobile control board 4 is provided with a locking portion 6 extending to the outside of the switch housing 1. The locking portion 6 is arranged at one end in the moving direction of the mobile control board 4. The switch housing 1 is provided with a hole for the locking portion 6 to extend out. The locking portion 6 is provided with a padlock hole 13. When the locking portion 6 is located outside the switch housing 1, a padlock can be connected in the padlock hole 13, so as to limit the movement of the mobile control board 4 and lock the mobile control board 4 in this state.

[0030] A touch switch 7 is arranged inside the switch housing 1. After being activated by being touched, the touch switch 7 can emit a signal to control the electric actuator to stop working, so that the electric actuator cannot drive the operating handle 2 to move.

[0031] The mobile control board 4 is provided with a touch portion 8 corresponding to the touch switch 7. During the movement of the mobile control board 4, the touch switch 7 can be touched and operated through the touch portion 8.

[0032] A protruding gear protrusion 9 is arranged on the side wall of the mobile control board 4. A gear bar 10 is arranged inside the switch housing 1. The gear bar 10 extends along the length direction of the mobile control board 4. The gear bar 10 is provided with three gear grooves 11. The gear grooves 11 are arranged corresponding to the gear protrusion 9. The three gear grooves 11 are spaced at intervals in the length direction of the gear bar 10. When the mobile control board 4 moves, the gear protrusion 9 moves along the gear bar 10. When the gear protrusion 9 moves into the gear groove 11, it plays a role in positioning the position of the mobile control board 4, so that the mobile control board 4 stays at this position.

[0033] The three gear grooves 11 respectively correspond to three working states of the mobile control board.

[0034] The three working states are the first working state, the second working state, and the third working state in sequence.

[0035] When the mobile control board is in the first working state, the touch portion contacts the touch switch (at this time, the touch switch is activated, and a control signal is sent through the circuit board, so that the driving actuator for driving the handle to move cannot work). The mobile control board shields the operation port (at this time, manual operation of the handle through the operation port is not possible). At this time, the locking portion 6 extends to the outside of the switch housing 1, and a padlock is connected to the padlock hole 13. In this state, the changeover switch cannot be manually operated and cannot be electrically operated.

[0036] When the mobile control board is in the second working state, the pressing part contacts the pressing switch, and the opening on the mobile control board corresponds to the operation port (at this time, manual operation of the handle can be performed through the operation port). In this state, the changeover switch can be manually operated and cannot be electrically operated.

[0037] When the mobile control board is in the third working state, the pressing part is separated from the pressing switch (at this time, the driving actuator that drives the handle to move can drive the handle to move), and the mobile control board shields the operation port. In this state, the changeover switch cannot be manually operated and can be electrically operated.

[0038] The pressing part 8 is slidably connected to the gear bar 10, and this structure can enhance the stability of the movement of the mobile control board.

[0039] A circuit board 12 is provided inside the switch housing 1, and the pressing switch 7 is connected to the circuit board 12.

[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A safety lock mechanism for a dual power automatic transfer switch, comprising a switch housing (1), an operating handle (2) being arranged in the switch housing (1), and an operating port (3) corresponding to the operating handle (2) being arranged on the switch housing (1), characterized in that: The switch housing (1) is provided with a slidable movable control plate (4), the movable control plate (4) is provided with an opening (5) corresponding to the operating port (3), the movable control plate (4) is provided with a locking portion (6) extending to the outside of the switch housing (1), the switch housing (1) is provided with a touch-pressure switch (7), the movable control plate (4) is provided with a touch-pressure portion (8) corresponding to the touch-pressure switch (7), the movable control plate (4) is provided with a protruding pushing portion (21), the switch housing (1) is provided with a pushing groove (22) corresponding to the pushing portion (21), and the pushing groove (22) is arranged along the moving direction of the movable control plate (4).

2. The safety lock mechanism of a dual power automatic transfer switch according to claim 1, characterized in that: A protruding gear protrusion (9) is provided on the side wall of the movable control panel (4), a gear bar (10) is provided in the switch housing (1), the gear bar (10) is extended along the length direction of the movable control panel (4), and the gear bar (10) is provided with three gear grooves (11), and the three gear grooves (11) are arranged at intervals in the length direction of the gear bar (10).

3. The safety lock mechanism of a dual power automatic transfer switch according to claim 2, characterized in that: The contact and pressure portion (8) is slidably connected to the gear bar (10).

4. The safety lock mechanism of a dual power automatic transfer switch according to claim 1, characterized in that: A circuit board (12) is arranged inside the switch housing (1), and the touch-pressure switch (7) is connected to the circuit board (12).

5. The safety lock mechanism of a dual power automatic transfer switch according to claim 1, characterized in that: The locking portion (6) is provided with a padlock hole (13).

6. The safety lock mechanism of a dual power automatic transfer switch according to claim 1, characterized in that: The movable control plate (4) is provided with a guide groove (14), and the switch housing (1) is provided with a guide portion (15) which matches the guide groove (14).

Images