CN209912763U - Mechanical locking device of dual-power transfer switch - Google Patents

Abstract

The utility model discloses a dual supply change over switch's mechanical locking means, include dual supply change over switch includes control body and wiring body, mechanical locking means sets up at this internally in the control, and this mechanical locking means includes fixed connection square spindle nose outside the switch pivot, a serial communication port, sliding connection has mechanical hasp on the control body inside wall, be equipped with the locked groove in the mechanical hasp, square spindle nose and locked groove phase-match and with the lateral wall sliding connection of locked groove, the spacing seat of lower extreme fixedly connected with of mechanical hasp, the below of control body is equipped with the turning handle, the turning handle passes through drive mechanism and is connected with spacing seat transmission. The utility model discloses a set up mechanical lock, rotatable turning handle carries out the locking to square spindle nose, carries out the locking to change over switch then, prevents that it from carrying out the power conversion, and the security is higher, carries on spacingly to spacing seat through setting up the gag lever post, has improved mechanical lock's stability, has further promoted its security performance.

Description

Mechanical locking device of dual-power transfer switch

Technical Field

The utility model relates to a dual supply change over switch technical field especially relates to a dual supply change over switch's mechanical locking device.

Background

The dual power supply integrates switch and logic control into a whole, does not need an additional controller, really realizes an automatic transfer switch of electromechanical integration, has the functions of voltage detection, frequency detection, communication interface, electrical and mechanical interlocking and the like, and can realize automatic, electric remote and emergency manual control. The operation is that the logic control board manages the operation of the motor and the gear box by various logic commands to realize that the motor drives the switch spring to store energy and the accelerating mechanism of instantaneous release to quickly switch on and off a circuit or carry out circuit conversion, and the safety isolation is realized by an obvious visible state, thereby greatly improving the electrical performance and the mechanical performance. The switch is suitable for automatic switching between a main power supply and a standby power supply of a power supply system or automatic switching and safety isolation of two load devices and the like.

Most of the existing dual-power transfer switches are not provided with mechanical locking devices, and when a power supply is turned off for circuit maintenance, the dual-power transfer switches are easy to automatically start, so that the circuit is electrified, danger is easy to occur, and the safety of circuit maintenance personnel cannot be guaranteed; and the dual-power transfer switch has poor fixity, so that the dual-power transfer switch automatically falls off, the phenomenon of poor contact is easy to occur, and inconvenience is brought to the production and the life of people.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that dual power transfer switch does not possess the locking function among the prior art, and the mechanical locking device of dual power transfer switch who proposes easy and simple to handle.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mechanical locking device of a dual-power transfer switch comprises the dual-power transfer switch, a control body and a wiring body, wherein the mechanical locking device is arranged in the control body;

this mechanical locking means includes the square spindle nose of fixed connection outside the switch pivot, its characterized in that, sliding connection has mechanical hasp on the control body inside wall, be equipped with the locked groove in the mechanical hasp, square spindle nose and locked groove phase-match and with the lateral wall sliding connection of locked groove, the spacing seat of lower extreme fixedly connected with of mechanical hasp, the below of control body is equipped with the turning handle, the turning handle passes through drive mechanism and is connected with spacing seat transmission, this internal stop gear who is used for fixed spacing seat position that is equipped with of control.

Preferably, the transmission mechanism comprises a threaded rod rotatably connected with the limiting seat, the lower end of the threaded rod penetrates through the control body and is fixedly connected with the rotating handle, a nut is fixedly connected in the control body, and the nut is sleeved outside the threaded rod and is in threaded connection with the threaded rod.

Preferably, the threaded rod is rotatably connected with the limiting seat through a rotating bearing.

Preferably, stop gear is including setting up the gag lever post in the control body, be equipped with the recess that holds the gag lever post in the spacing seat, the one end of gag lever post runs through control body and fixedly connected with arm-tie, the other end of gag lever post extends to and sets up in the recess of spacing seat.

Preferably, the limiting rod is fixedly sleeved with a fixed plate, and the fixed plate is fixedly connected with the control body through a spring.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a set up mechanical lock, rotatable turning handle carries out the locking to square spindle nose, carries out the locking to change over switch then, prevents that it from carrying out the power conversion, and the security is higher, and easy and simple to handle, easily uses widely.

2. The utility model discloses a set up the gag lever post and carry on spacingly to spacing seat, improved the stability of mechanical hasp, further promoted its security performance, can ensure circuit maintainer's safety, reduce the possibility that the bad contact phenomenon takes place, the practicality is higher.

To sum up, the utility model discloses a set up mechanical hasp, rotatable turning handle carries out the locking to square spindle nose, carries out the locking to change-over switch then, prevents that it from carrying out the power conversion, and the security is higher, and easy and simple to handle, easily uses widely, carries on spacingly to spacing seat through setting up the gag lever post, has improved the stability of mechanical hasp, has further promoted its security performance, can ensure circuit maintainer's safety, reduces the possibility that contact failure phenomenon takes place, and the practicality is higher.

Drawings

Fig. 1 is a schematic structural diagram of a locking state of a mechanical locking device of a dual power transfer switch according to the present invention;

fig. 2 is the utility model provides a double power transfer switch's mechanical locking device unblock state's structural schematic.

In the figure: the device comprises a control body 1, a wiring body 2, a square shaft head 3, a mechanical lock catch 4, a limiting seat 5, a rotating handle 6, a threaded rod 7, a nut 8, a limiting rod 9, a pulling plate 10, a fixing plate 11 and a spring 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, a dual power change-over switch's mechanical locking means, including dual power change-over switch including control body 1 and wiring body 2, mechanical locking means sets up in control body 1, this mechanical locking means includes fixed connection square spindle nose 3 outside the switch pivot, its characterized in that, sliding connection has mechanical hasp 4 on the 1 inside wall of control body, be equipped with the locked groove in the mechanical hasp 4, square spindle nose 3 and locked groove phase-match and with the lateral wall sliding connection of locked groove, the lower extreme fixedly connected with spacing seat 5 of mechanical hasp 4.

The utility model discloses in, the below of control body 1 is equipped with turning handle 6, turning handle 6 passes through drive mechanism and is connected with 5 transmissions of spacing seat, it needs to explain, drive mechanism includes and rotates threaded rod 7 of being connected with spacing seat 5, the lower extreme of threaded rod 7 run through control body 1 and with 6 fixed connection of turning handle, fixedly connected with nut 8 in the control body 1, nut 8 cover establish outside threaded rod 7 and with 7 threaded connection of threaded rod, it is worth mentioning that, threaded rod 7 rotates with spacing seat 5 through rolling bearing and is connected, and threaded rod 7 is thin thread, the screw lead angle is less than the vice equivalent friction angle of spiral, self-locking nature has, rotatable turning handle 6 carries out the locking through mechanical hasp 4 to square spindle nose 3, then carry out the locking to change-over switch, prevent that it from carrying out power conversion, the security is higher.

The utility model discloses in, be equipped with the stop gear who is used for fixed spacing seat 5 positions in the control body 1, it is required to explain, stop gear is including setting up gag lever post 9 in the control body 1, be equipped with the recess that holds gag lever post 9 in the spacing seat 5, the one end of gag lever post 9 runs through control body 1 and fixedly connected with arm-tie 10, the other end of gag lever post 9 extends to and sets up in the recess of spacing seat 5, it needs to notice, the outer fixed cup joint of gag lever post 9 has fixed plate 11, fixed plate 11 passes through spring 12 and control body 1 fixed connection, can be used to reset gag lever post 9, can carry on spacingly to spacing seat 5 through gag lever post 9, mechanical hasp 4's stability has been improved, further its security performance has been promoted.

The utility model discloses its functional principle is explained to following mode of operation of accessible: when the dual-power transfer switch needs to be locked, firstly, the rotating handle 6 is rotated to drive the threaded rod 7 to rotate, and as the nut 8 is fixed with the control body 1, the threaded rod 7 drives the limiting seat 5 to move, the mechanical lock catch 4 fixedly connected with the threaded rod moves towards the square shaft head 3, the square shaft head 3 is clamped into the lock groove of the mechanical lock catch 4 to be locked, as shown in fig. 1, the rotating shaft of the transfer switch fixedly connected with the square shaft head 3 is locked to prevent the transfer switch from performing power conversion, so that the dual-power transfer switch is higher in safety, simple and convenient to operate and easy to popularize and use;

at the moment, the limiting rod 9 extends into the groove of the limiting seat 5 under the elastic force of the spring 12 to limit the limiting seat, so that the stability of the mechanical lock catch is improved, the safety performance of the mechanical lock catch is further improved, the safety of circuit maintainers can be guaranteed, the possibility of poor contact is reduced, and the practicability is higher;

when the locking is required to be released, the pulling plate 10 is pulled, the limiting rod 9 is pulled out of the groove of the limiting seat 5, the rotating handle 6 is rotated reversely, the mechanical lock catch 4 is far away from the square shaft head 3, as shown in fig. 2, and then the locking state of the dual-power-supply change-over switch is released.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A mechanical locking device of a dual-power transfer switch comprises the dual-power transfer switch, a control body (1) and a wiring body (2), wherein the mechanical locking device is arranged in the control body (1);

this mechanical locking device includes square spindle nose (3) of fixed connection outside the switch pivot, its characterized in that, sliding connection has mechanical hasp (4) on control body (1) inside wall, be equipped with the locked groove in mechanical hasp (4), square spindle nose (3) and locked groove phase-match and with the lateral wall sliding connection of locked groove, the spacing seat of lower extreme fixedly connected with (5) of mechanical hasp (4), the below of control body (1) is equipped with turning handle (6), turning handle (6) are connected with spacing seat (5) transmission through drive mechanism, be equipped with the stop gear who is used for fixed spacing seat (5) position in control body (1).

2. The mechanical locking device of the dual-power transfer switch of claim 1, wherein the transmission mechanism comprises a threaded rod (7) rotatably connected with the limiting seat (5), the lower end of the threaded rod (7) penetrates through the control body (1) and is fixedly connected with the rotating handle (6), a nut (8) is fixedly connected in the control body (1), and the nut (8) is sleeved outside the threaded rod (7) and is in threaded connection with the threaded rod (7).

3. The mechanical locking device of the dual power transfer switch of claim 2, wherein the threaded rod (7) is rotatably connected with the limiting seat (5) through a rotating bearing.

4. The mechanical locking device of the dual power transfer switch according to claim 1, wherein the limiting mechanism comprises a limiting rod (9) disposed in the control body (1), a groove for accommodating the limiting rod (9) is disposed in the limiting seat (5), one end of the limiting rod (9) penetrates through the control body (1) and is fixedly connected with a pulling plate (10), and the other end of the limiting rod (9) extends into the groove of the limiting seat (5).

5. The mechanical locking device of the dual power transfer switch of claim 4, wherein a fixed plate (11) is fixedly sleeved outside the limiting rod (9), and the fixed plate (11) is fixedly connected with the control body (1) through a spring (12).

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