CN204538543U - A kind of low pressure drawer-type switch cabinet, drawer unit and operating mechanism - Google Patents

Abstract

The utility model relates to the field of electrical equipment, in particular to a low-voltage drawer switch cabinet, a drawer unit and an operating mechanism. The low-voltage drawer switchgear includes a cabinet body and a drawer unit. The drawer unit includes a circuit breaker and an operating mechanism of the circuit breaker. There are more than two circuit breakers. The operating mechanism includes a mounting frame, and the mounting frame is rotatably equipped with an input shaft and Corresponding to the output shaft of the circuit breaker, used to drive the circuit breaker to break, the input shaft is arranged in parallel with the output shaft and is connected to the output shaft through a corresponding transmission mechanism. When in use, multiple circuit breakers can be operated at the same time through the input shaft, so as to realize the on-off operation of multiple circuits. It can be seen that the low-voltage drawer-type switch cabinet of the utility model solves the problem of the existing drawer-type switch cabinet. The unique drawer unit cannot meet the problem of simultaneous on-off of two or more circuits.

Description

A low-voltage drawer switch cabinet, drawer unit and operating mechanism

technical field

The utility model relates to the field of electrical equipment, in particular to a low-voltage drawer switch cabinet, a drawer unit and an operating mechanism.

Background technique

At present, in the low-voltage power distribution industry, drawer-type switch cabinets are often used to realize the connection of multiple lines. The drawer-type switch cabinets use a closed shell, and the electrical components of the incoming and outgoing circuit circuits are fastened and installed in drawers. A drawer unit that performs a certain type of power supply task. When a drawer unit breaks down, the drawer can be pulled out of the switchgear and moved outside for troubleshooting without the need to cut off the mains. At the same time, the drawer unit can also seal the fault inside the drawer unit without affecting the normal operation of other drawer units. Drawer-type switchgear is widely used for its reliability, safety, interchangeability and other advantages.

Although there are many types of drawer-type switchgears at home and abroad, the working principles of the drawer units of all drawer-type switchgears are similar, and only one molded case circuit breaker can be installed to meet the connection and disconnection of one circuit. The simultaneous connection and disconnection of two circuits cannot be satisfied.

Contents of the invention

The purpose of the utility model is to provide a low-voltage drawer-type switchgear to solve the problem that the drawer unit of the existing drawer-type switchgear cannot meet the simultaneous on-off of two or more circuits.

At the same time, the purpose of the utility model is also to provide the drawer unit and the operating mechanism of the above-mentioned low-voltage drawer switchgear.

In order to solve the above problems, the low-voltage drawer-type switchgear adopts the following technical scheme: the low-voltage drawer-type switchgear includes a cabinet body and a drawer unit, and the drawer unit includes a circuit breaker and an operating mechanism of the circuit breaker. There are more than two circuit breakers, The operating mechanism includes a mounting frame on which an input shaft and an output shaft corresponding to the circuit breaker and used to drive the circuit breaker to break are installed in rotation. The input shaft and the output shaft are arranged in parallel and are driven by the corresponding transmission mechanism and the output shaft. connect.

The transmission mechanism includes a driving gear, a driven gear and a transmission rack connected between the driving gear and the driven gear. The driving gear is mounted on the input shaft in a non-rotating manner, and the driven gear is mounted on the corresponding output shaft in a non-rotating manner. superior.

The mounting bracket is provided with a guide groove matched with the rack guide.

The outer end of the input shaft is provided with a socket for inserting an operating handle.

The drawer unit of the low-voltage drawer-type switchgear adopts the following technical scheme: the drawer unit of the low-voltage drawer-type switchgear includes a circuit breaker and an operating mechanism of the circuit breaker. There are more than two circuit breakers, and the operating mechanism includes a mounting frame. The frame is rotatably equipped with an input shaft and an output shaft corresponding to the circuit breaker for driving the circuit breaker to switch off. The input shaft and the output shaft are arranged in parallel and connected with the output shaft through a corresponding transmission mechanism.

The transmission mechanism includes a driving gear, a driven gear and a transmission rack connected between the driving gear and the driven gear. The driving gear is mounted on the input shaft in a non-rotating manner, and the driven gear is mounted on the output shaft in a non-rotating manner.

The mounting bracket is provided with a guide groove matched with the rack guide.

The outer end of the input shaft is provided with a socket for inserting an operating handle.

The operating mechanism of the circuit breaker adopts the following technical scheme: the operating mechanism of the circuit breaker, which is used for the drawer unit of the low-voltage drawer switchgear, includes a mounting frame, and the mounting frame is rotatably equipped with an input shaft and more than two The input shaft and the output shaft are arranged in parallel and connected to the output shaft through a corresponding transmission mechanism to respectively drive the output shafts of the corresponding circuit breakers to be disconnected.

The transmission mechanism includes a driving gear, a driven gear and a transmission rack connected between the driving gear and the driven gear. The driving gear is mounted on the input shaft in a non-rotating manner, and the driven gear is mounted on the corresponding output shaft in a non-rotating manner. superior.

Since the drawer unit of the switch cabinet has at least two circuit breakers, and the input shaft of the operating mechanism is connected to the output shaft through the transmission mechanism, and the output shaft is used to drive the circuit breaker to open and correspond to the circuit breaker one by one, so , when in use, multiple circuit breakers can be operated simultaneously through the input shaft, so as to realize the on-off operation of multiple circuits. It can be seen that the low-voltage drawer-type switch cabinet of the utility model solves the problem of the existing drawer-type switch The drawer unit of the cabinet cannot meet the problem of simultaneous on-off of more than two circuits.

Furthermore, using the rack and pinion mechanism as the transmission mechanism can realize precise and timely action of the mechanism, and can save installation space.

Description of drawings

Fig. 1 is a schematic structural view (with section view) of the drawer unit in the embodiment of the low-voltage drawer switchgear;

Fig. 2 is a sectional view along A-A of Fig. 1 .

Detailed ways

The embodiment of the drawer unit of the low-voltage drawer switchgear is shown in Figure 1-2. The low-voltage drawer switch includes a cabinet body and a drawer unit. The structure of the cabinet body is the prior art, so it is not shown in the accompanying drawings. No further details are given here.

The drawer unit includes a circuit breaker and an operating mechanism of the circuit breaker. The circuit breaker is a molded case circuit breaker. In this embodiment, there are two circuit breakers, and the two circuit breakers are respectively installed on both sides of the mounting frame.

The operating mechanism is used to realize the switching operation of the circuit breaker. The operating mechanism includes a mounting frame 11 on which an input shaft 12 is rotatably mounted. The input shaft 12 is located between two circuit breakers. In addition, the input shaft 12 is also provided with a top screw hole on the hole wall of the jack. When in use, the corresponding operation handle can be inserted through the jack, and then through the top screw. The jackscrew 13 that assembles in the hole just can fix operating handle. The input shaft 12 is also connected to the output shaft 14 through the corresponding transmission mechanism. The output shaft 14 is used to couple with the circuit breaker to drive the circuit breaker to break, and it corresponds to the circuit breaker one by one. In this embodiment, the transmission mechanism includes a driving gear. 15. The driven gear 16 and the transmission rack 17 connected between the driving gear 15 and the driven gear 16, the driving gear 15 is assembled on the input shaft 12 in anti-rotation, and the driven gear 16 is assembled in the output shaft 14 in anti-rotation Above, the mounting bracket 11 is provided with a guide groove that guides and cooperates with the rack 17 .

During use, turn the input shaft through the operating handle, then the input shaft can drive the corresponding rack to move through the driving gear, and the movement of the rack can drive the corresponding driven gear to rotate, so that the circuit breaker can be driven through the output shaft to complete Switching operations on circuit breakers.

In other embodiments, the transmission mechanism can also use a double rocker mechanism, that is, rockers are respectively assembled on the input shaft and the output shaft, and then the connecting rod is connected between the rockers of the input shaft and the output shaft. The operation of the two circuit breakers can be realized through the rotation of the input shaft. In addition, the transmission mechanism can also use a chain transmission mechanism or a belt transmission mechanism; in addition, the number of circuit breakers can be more than two, and its specific Set as desired.

The drawer unit of the low-voltage drawer-type switchgear is shown in Figure 1-2. The structure of the drawer unit is the same as that of the drawer unit of the above-mentioned low-voltage drawer-type switchgear, and will not be described here.

The embodiment of the operating mechanism of the circuit breaker is shown in Figure 1-2. The structure of the operating mechanism is the same as that in the drawer unit of the above-mentioned low-voltage drawer switchgear, and will not be repeated here.

Claims (10)

1. Low-voltage drawer-type switchgear, including a cabinet body and a drawer unit, the drawer unit includes a circuit breaker and an operating mechanism of the circuit breaker, which is characterized in that there are more than two circuit breakers, and the operating mechanism includes a mounting frame, a mounting frame The upper rotation assembly is equipped with an input shaft and an output shaft corresponding to the circuit breaker for driving the circuit breaker to break. The input shaft and the output shaft are arranged in parallel and connected with the output shaft through a corresponding transmission mechanism. 2. The low-voltage drawer switchgear according to claim 1, wherein the transmission mechanism comprises a driving gear, a driven gear and a transmission rack connected between the driving gear and the driven gear, and the driving gear The anti-rotation is assembled on the input shaft, and the anti-rotation of the driven gear is assembled on the corresponding output shaft. 3. The low-voltage drawer-type switchgear according to claim 2, characterized in that, the installation frame is provided with a guide groove that cooperates with the guide of the rack. 4. The low-voltage drawer-type switch cabinet according to claim 1, 2 or 3, characterized in that, the outer end of the input shaft is provided with a jack for inserting an operating handle. 5. The drawer unit of the low-voltage drawer-type switchgear includes a circuit breaker and an operating mechanism of the circuit breaker. It is characterized in that there are more than two circuit breakers, and the operating mechanism includes a mounting frame, and the mounting frame is rotatably equipped with an input shaft. Corresponding to the output shaft of the circuit breaker and used to drive the circuit breaker to break, the input shaft is arranged in parallel with the output shaft and is connected to the output shaft through a corresponding transmission mechanism. 6. The drawer unit of the low-voltage drawer switchgear according to claim 5, wherein the transmission mechanism includes a driving gear, a driven gear and a transmission rack connected between the driving gear and the driven gear, so that Said driving gear is assembled on the input shaft for anti-rotation, and the driven gear is assembled for anti-rotation on the output shaft. 7. The drawer unit of the low-voltage drawer-type switchgear according to claim 6, characterized in that, the installation frame is provided with a guide groove that cooperates with the guide of the rack. 8. The drawer unit of the low-voltage drawer switchgear according to claim 5, 6 or 7, wherein the outer end of the input shaft is provided with a jack for inserting an operating handle. 9. The operating mechanism of the circuit breaker, which is used for the drawer unit of the low-voltage drawer switchgear, is characterized in that it includes a mounting frame, and the mounting frame is rotatably equipped with an input shaft and two or more for driving the corresponding The output shaft for breaking the circuit breaker, the input shaft and the output shaft are arranged in parallel and connected with the output shaft through a corresponding transmission mechanism. 10. The operating mechanism of the circuit breaker according to claim 9, wherein the transmission mechanism comprises a driving gear, a driven gear and a transmission rack connected between the driving gear and the driven gear, the driving The anti-rotation of the gear is assembled on the input shaft, and the anti-rotation of the driven gear is assembled on the corresponding output shaft.