CN214123740U

CN214123740U - Dual-power transfer switch with good safety performance

Info

Publication number: CN214123740U
Application number: CN202022589055.4U
Authority: CN
Inventors: 薛明亮; 宋志东; 田玉国; 刘征; 黄立强
Original assignee: Cetc North Intelligent Electric Co ltd
Current assignee: Cetc North Intelligent Electric Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-09-03
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a double power supply change-over switch with good safety performance, which comprises a shell, wherein a first gear is arranged at the top end inside the shell, a commercial power switch is arranged at one side of the top end of the shell, which is positioned at the outer side of the first gear, a standby power switch is arranged at the other side of the top end of the shell, push plates are sleeved outside the commercial power switch and the standby power switch, a rack which is meshed and connected with the first gear is fixed at one side of the push plate, which is close to the first gear, a fixing component is arranged at the position of the outer part of the shell, which is positioned at the wire connection part, the utility model prevents the fixed switch by the meshing between the first gear and the rack, prevents the switch from rebounding when in power-on, simultaneously, when the wire end is fixed, the arc wire fixing plate moves downwards along with an extrusion block, the connecting wire is fixed between the arc wire fixing plate and a wire placing groove, and can isolate the exposed wire end when the connecting wire is fixed, the connection mode is more convenient, and the safety index is higher simultaneously.

Description

Dual-power transfer switch with good safety performance

Technical Field

The utility model relates to a dual power transfer switch technical field specifically is a dual power transfer switch that security performance is good.

Background

The dual-power automatic transfer switch is a microprocessor-controlled device for starting and switching between grid power and grid power or between grid power and a generator power supply in a power grid system, can supply power to a continuous source of the power supply, and can automatically put into a standby power supply through the dual-power transfer switch when common power fails suddenly or has power failure, so that equipment can still normally operate. The most common is the elevator, the fire control, in the control, the illumination etc, but current dual power change over switch is when using, commercial power switch and stand-by power switch lack corresponding fixing device, switch bounce appears easily during the circular telegram, lead to dual power change over switch stable inadequately when using, it is inside at the change over switch that the connection stub passes through the screw fixation simultaneously, because the power stub is ragged inedly, for the safety, after fixing good power stub, need use insulating tape to wrap up the power cord that exposes outside, the process of connection is more troublesome and the security performance is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual power change over switch that security performance is good to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a dual-power-supply change-over switch with good safety performance comprises a shell, wherein a first gear is arranged at the top end inside the shell, a mains supply switch is arranged on one side, located outside the first gear, of the top end of the shell, a standby power switch is arranged on the other side, located outside the first gear, of the top end of the shell, push plates are sleeved outside the mains supply switch and the standby power switch, racks meshed and connected with the first gear are fixed on one side, close to the first gear, of each push plate, and a fixing assembly is arranged on the position, located at the wire connection position, outside the shell;

the fixing assembly comprises a bolt embedded at the top end of the shell, a threaded hole is formed in the bolt, a first screw rod is connected to the threaded hole in a rotating mode, a square extrusion block is fixed to the bottom end of the first screw rod, a second gear is fixedly connected to the upper portion of the outer side of the bolt, a third gear is meshed and connected to the outer side of the second gear, a second screw rod is connected to the third gear in a rotating mode, an arc-shaped wire fixing plate is fixed to the bottom end of the second screw rod, and a wire placing groove is formed in the position, below the square extrusion block and the arc-shaped wire fixing plate, of the shell.

As a further aspect of the present invention: the motor is embedded in the shell, and the output end of the motor is fixedly connected with the first gear.

As a further aspect of the present invention: the top end inside the shell is fixed with limiting rods corresponding to the positions of the second gear and the third gear, and annular limiting grooves matched with the limiting rods are formed in the second gear and the third gear.

As a further aspect of the present invention: a first internal thread matched with the first screw rod for use is formed in the second gear, and a second internal thread matched with the second screw rod for use is formed in the third gear.

As a further aspect of the present invention: the push pedal is trapezoidal form, the guide way that supplies the push pedal to remove is seted up to the shell both sides.

Compared with the prior art, the beneficial effects of the utility model are that:

prevent fixed switch through the meshing between first gear and the rack, the switch rebound phenomenon appears when preventing to switch on, and simultaneously when fixed end of a thread, the arc is fixed line board and is fixed the connecting wire between the arc is fixed line board and is put the wire casing along with the together downstream of extrusion piece, can keep apart naked end of a thread in the time of fixed connecting wire, and connected mode is more convenient, and safety index is higher simultaneously.

Drawings

FIG. 1 is a top view of a dual power transfer switch with good safety performance;

FIG. 2 is a top sectional view of a dual power transfer switch with good safety performance;

FIG. 3 is a side cross-sectional view of a dual power transfer switch with good safety performance;

in the figure: 1. a housing; 2. a first gear; 3. a mains supply switch; 4. a standby switch; 5. pushing the plate; 6. a rack; 7. a fixing assembly; 71. a bolt; 72. a threaded hole; 73. a first screw; 74. a square extrusion block; 75. a second gear; 76. a third gear; 77. a second screw; 78. an arc-shaped wire fixing plate; 79. and (6) arranging a wire groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Please refer to fig. 1-3, a dual power switch with good safety performance, which comprises a housing 1, a first gear 2 is installed on the top end inside the housing 1, a commercial power switch 3 is installed on one side of the first gear 2 outside the housing 1, a standby power switch 4 is installed on the other side of the first gear 2 outside the housing 1, push plates 5 are respectively sleeved on the commercial power switch 3 and the standby power switch 4, a rack 6 engaged with the first gear 2 is fixed on one side of the push plates 5 close to the first gear 2, the first gear 2 drives the racks 6 on two sides to move up and down respectively when rotating, the rack 6 drives the commercial power switch 3 and the standby power switch 4 to open and close through the push plates 5, and a fixing component 7 is arranged at the wire connection part outside the housing 1.

The fixing component 7 comprises a bolt 71 embedded at the top end of the shell 1, a threaded hole 72 is formed in the bolt 71, a first screw 73 is connected in the threaded hole 72 in a screwing manner, a square extrusion block 74 is fixed at the bottom end of the first screw 73, when the bolt 71 is rotated, the square extrusion block 74 cannot rotate, so that the first screw 73 moves up and down in the threaded hole 72 to drive the square extrusion block 74 to move up and down, a second gear 75 is fixedly connected to the upper portion of the outer side of the bolt 71, a third gear 76 is connected to the outer side of the second gear 75 in a meshing manner, a second screw 77 is connected in the third gear 76 in a screwing manner, the second gear 75 drives the third gear 76 to rotate, when the third gear 76 rotates, the second screw 77 moves up and down in the third gear 76, an arc-shaped wire fixing plate 78 is fixed at the bottom end of the second screw 77, the arc-shaped wire fixing plate 78 is driven by the second screw 77 to move down, so as to fix the connecting wire at the bottom end of the arc-shaped wire fixing plate 78, a wire placing groove 79 is formed in the shell 1 at the position below the square extrusion block 74 and the arc-shaped wire fixing plate 78.

The motor has been inlayed to shell 1 inside, and the motor output drives first gear 2 with first gear 2 fixed connection and rotates, thereby the motor drives first gear 2 and rotates and realize commercial power and the conversion of being equipped with the electricity.

The positions of the top end inside the shell 1, which correspond to the second gear 75 and the third gear 76, are both fixed with limit rods, and annular limit grooves used for matching the limit rods are formed inside the second gear 75 and the third gear 76, so that the second gear 75 and the third gear 76 are fixed in the position inside the shell 1, and the rotation of the second gear 75 and the third gear 76 is not influenced.

The square groove is formed in the position, corresponding to the square extrusion block 74, in the shell 1, the long groove is formed in the position, corresponding to the arc-shaped wire fixing plate 78, in the shell 1, the square extrusion block 74 and the arc-shaped wire fixing plate 78 cannot rotate under the limitation of the square groove and the long groove, so that the first screw 73 and the second screw 77 cannot rotate, and when the bolt 71 and the third gear 76 rotate, the first screw 73 and the second screw 77 drive the square extrusion block 74 and the arc-shaped wire fixing plate 78 to move downwards.

The push plate 5 is trapezoidal for the push plate 5 is more firm, and the guide way that supplies the push plate 5 to remove is seted up to 1 both sides of shell, and the push plate 5 of being convenient for removes.

When the utility model is used, firstly, the electric wire to be connected is inserted into the wire placing groove 79, then the bolt 71 is rotated, when the bolt 71 rotates, the first screw rod 73 drives the square extrusion block 74 to move downwards so as to fix the wire end of the connecting wire, the square extrusion block 74 can not rotate under the limitation of the shell 1, so that the first screw rod 73 can not rotate along with the bolt 71 when the bolt 71 rotates, but does the up-and-down motion, meanwhile, the bolt 71 drives the third gear 76 to rotate together through the second gear 75, the third gear 76 drives the second screw rod 77 to move downwards through the internal thread, the arc wire fixing plate 78 fixes the connecting wire between the arc wire fixing plate 78 and the wire placing groove 79, the secondary fixing effect is achieved on the connecting end, the wire end is prevented from being loosened due to the action of external force, when the dual-power switch is used, the commercial power is disconnected, the motor drives the first gear 2 to rotate, the first gear 2 drives the push plate 5 at two sides to move up and down respectively through the meshing connection with the rack 6, commercial power switch 3 moves down and closes, and the switch 4 that is equipped with moves up simultaneously and opens to realize the switching of power, the meshing between first gear 2 and the rack 6 is connected and is made the switch conversion process more stable.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The dual-power-supply change-over switch with good safety performance comprises a shell (1) and is characterized in that a first gear (2) is mounted at the top end inside the shell (1), a mains supply switch (3) is mounted at one side, located at the outer portion of the first gear (2), of the top end of the shell (1), a standby power switch (4) is mounted at the other side, located at the outer portion of the first gear (2), of the top end of the shell (1), push plates (5) are sleeved on the outer portions of the mains supply switch (3) and the standby power switch (4), racks (6) meshed and connected with the first gear (2) are fixed on one side, close to the first gear (2), of each push plate (5), and a fixing component (7) is arranged at the position, located at the electric wire connection position, of the outer portion of the shell (1);

fixed subassembly (7) including inlaying bolt (71) on shell (1) top, the inside screw hole (72) of seting up of bolt (71), screw hole (72) inside closes soon and is connected with first screw rod (73), first screw rod (73) bottom mounting has square extrusion piece (74), bolt (71) outside upper portion fixedly connected with second gear (75), second gear (75) outside meshing is connected with third gear (76), third gear (76) inside closes soon and is connected with second screw rod (77), second screw rod (77) bottom mounting has arc solidus board (78), shell (1) inside is located square extrusion piece (74) and arc solidus board (78) lower position department and has seted up and put wire casing (79).

2. The dual-power-supply change-over switch with good safety performance is characterized in that a motor is embedded in the shell (1), and the output end of the motor is fixedly connected with the first gear (2).

3. The dual-power-supply change-over switch with good safety performance according to claim 1, wherein limiting rods are fixed at positions, corresponding to the second gear (75) and the third gear (76), of the top end inside the shell (1), and annular limiting grooves matched with the limiting rods are formed inside the second gear (75) and the third gear (76).

4. The dual power transfer switch with good safety performance of claim 1, wherein a first internal thread used for matching with the first screw (73) is formed inside the second gear (75), and a second internal thread used for matching with the second screw (77) is formed inside the third gear (76).

5. The dual-power-supply change-over switch with good safety performance according to claim 1, wherein the push plate (5) is in a trapezoid shape, and guide grooves for the push plate (5) to move are formed in two sides of the housing (1).