JPS649805B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a panel surface operation drawer device for a drawer-type trolley that is housed in a drawer-type switchboard and constitutes a main circuit.

The first drawer type switchboard device of this type
The one shown in Fig. 2 was found.

Figure 1 is a side view of the inner truck device being operated through the opening provided on the front of the outer truck device and inserted into the main circuit, and Figure 2 is a side view of the inner truck device being disconnected from the main circuit. FIG.

In the figure, 1 is the switchboard frame body, 2 is the control circuit unit door, 3 is the door handle, 4 is the door surface mounting part, 5 is the control circuit unit, 6 is the internal parts of the control circuit board, 7 is the control circuit external cable entry port, 8 1 is a control circuit external cable lead-in unit, 9 is a control cable duct, 10 is a main circuit power supply unit, 11 is a main circuit power supply bus, 12 is a main circuit power supply branch bus, 1
3 is the main circuit power supply side insulator tube, 14 is the main circuit power supply side contact, 15 is the main circuit load cable entry port, 16 is the main circuit load cable entry unit, 17 is the main circuit load cable entry terminal, and 18 is the load side terminal fixing. 19 is an insulator on the main circuit load side, 20 is a main circuit load side contactor, 21, 22, 23, 24 is a partition cover between each unit, 25 is a main circuit unit, 31 is an insulator inserted into the main circuit. The main circuit components built in the inner bogie frame body 31 are shown below, 32 is an insulator for fixing the inner bogie power supply side, 33 is a power supply side conductor, 34 is a power fuse, 36 is an electromagnetic contactor,
38 is a CT, 35 and 37 are connection conductors between the parts,
39 is a load side conductor, 40 is a load side fixing insulator, 4
1 is the lower wheel of the inner bogie, 42 is the upper wheel of the inner bogie, 4
3 is a handle for operating the inner truck, and 31A to 43A are members for the inner truck in a disconnected state, which are the same parts as 31 to 43 above. 50 is the outer truck frame body, 51 is a face plate on the front of the outer truck, 52 is a wheel for the outer truck, 53 is a handle, 54 is an upper guide rail for the inner truck provided on the upper part of the outer truck frame, 55 is a lower guide rail, 56 is an opening provided in the face plate 51 for operating the inner truck.

Next, the operation will be explained. Conventionally, in this type of pull-out type switchboard, when pulling out the inner trolley device to the disconnection position or test position, after turning off the magnetic contactor 36 of the main circuit, confirm that the main circuit is open, and then remove the outer trolley device. The handle 43 of the inner bogie frame 31 is inserted through the opening 56 of the face plate 51 on the front of the frame.
The main circuit was disconnected using the contacts 14 and 20 on the power supply side and the load side of the main circuit. Note that the insertion operation, that is, the connection operation of the main circuit, was performed in a completely opposite manner to the above-mentioned operation method.

The conventional trolley pull-out device for a double-truck drawer type switchboard is constructed as described above, so it was necessary to operate the handle on the inner trolley frame from the face plate opening on the front of the outer trolley. Due to the small size, the weight of the inner trolley, and the large contact pressure of the main circuit contacts, the disconnection and insertion operations of the inner trolley required more operating force and attention than necessary to check before and after the operation.

In addition, although the trolley body is grounded, the handle of the inner trolley body that carries the main circuit charging components must be manually operated, and there is also a sense of anxiety about incorrect operation. There were drawbacks such as the inability to provide a sufficient structure for protection from the panel surface and measures against blasts caused by accidents inside the switchboard frame in accordance with the specifications.

This invention was made in order to eliminate the above-mentioned drawbacks of the prior art, and eliminates the opening for operating the inner bogie provided in the face plate on the front surface of the conventional outer bogie, and provides an operating mechanism that engages with the inner bogie. A built-in operation box is provided, and the operation lever directly connected to the operation mechanism can be rotated from the outside of the outer truck face plate to easily and reliably insert and disconnect the inner truck.Furthermore, the main circuit The operator does not have to touch the charging equipment loading trolley frame directly, which eliminates the operator's anxiety, and since there are no openings, the double trolley drawer type provides sufficient protection against dust, a protective structure, and blast protection against internal accidents. The purpose of this invention is to provide a panel operation pull-out device for a switchboard.

An embodiment of the present invention will be described below with reference to the drawings. 3 to 12 show embodiments of the double bogie panel surface operating mechanism of the present invention. In FIG. FIG. 4 shows details of the operation box 70 when the inner bogie frame 44 is inserted into the circuit, FIG. 5 shows a detailed example of the cross section of FIG. A state in which the operation lever 69 is disconnected from the main circuit, FIG. 7 shows details of the operation box 70 in FIG. 6, and FIG. 8 shows a cross section of FIG. 7.
A detailed example of the section is shown below.

FIG. 9 shows a state in which the inner trolley 31 is disconnected and the outer trolley 50 is carried out from the switchboard frame body 1, and the 10th
The figure shows the main body of the switchboard frame after being carried out from the outer bogie, FIG. 11 shows the main body of the outer bogie after being carried out from the inner bogie, and FIG. 12 shows the main body of the inner bogie after being carried out from the outer bogie frame.

In FIG. 3, 1 is the switchboard frame body, 50 is the outer truck frame body which has been carried into the switchboard frame body 1, and 5
1 is the face plate on the front of the outer truck, 52 is the handle, 53 is the wheel for the outer truck, 54 is the upper guide rail of the inner truck provided on the upper part of the outer truck frame, 55 is the lower guide rail, and 61 is the front surface of the inner truck 31. 62 is an operating mechanism rotating shaft; 63 is a guide seat provided in the
64 is a circular lever for operation provided on the rotating shaft 62; 65 is a guide shaft provided on the rotating arm 63 and engages with the guide seat 61 of the inner truck; 66 and 67 are This is a guide roller provided on the guide shaft 65 and a pin for preventing the guide roller from falling off. 68 is a guide rail hole machined in the guide seat 61 provided on the front surface of the inner truck and engages with the guide roller 66; 69 is an operating lever directly connected to the operating circular lever 64;
Reference numeral 0 indicates an operation box housing the operating mechanism members 61 to 69, and 75 indicates the direction in which the operating handle is operated. FIG. 4 is a detailed view of the operating mechanism, and FIG. 5 is a detailed cross-sectional view of FIG. This groove-like recess 70a is configured to be closed to the face plate 51 on the front surface of the outer truck.
Operation lever 6 disposed within this groove-like recess 70a
9 is attached via a circular lever 64 to a rotating shaft 62 passing through this groove-like recess 70a. Note that the guide shaft 65, the guide rail hole 68, and the guide seat 61 constitute a connection mechanism between the rotating arm member 63 and the inner truck frame body 31.

FIG. 6 shows each device and component when the operating handle is in the disconnected position 69A and the inner truck is in the disconnected state. 31A to 43A are 31 to 4 in FIG. 3.
3. Furthermore, 61A to 65A, 68A, and 69A are 6
This is the same part as 1 to 65, 68, and 69. Reference numeral 74 indicates the direction in which the operating lever 69A is inserted. Figure 7 shows details of the operating mechanism when the operating lever is disconnected.
FIG. 8 shows details of the cross section of FIG. 7. Note that 71 and 72 are intermediate bearings of the rotating shaft 62,
73 is an end bearing.

Figure 9 shows the state in which the inner trolley is disconnected and the outer trolley is carried out from the switchboard main body, and Figure 10 shows the switchboard main body after the trolley has been removed, and Figure 11 shows the outer trolley frame after the inner trolley has been removed. Figure 12 shows the inner truck frame body carried out from the outer truck, and shows the same components as above.

Next, an explanation will be given of the operation of the panel operation pull-out device for the double-carriage pull-out type switchboard configured as described above. This type of pull-out type switchboard includes an outer bogie frame 50 that is connected to the switchboard frame body 1, and an inner bogie frame 3 that moves horizontally within the outer bogie and houses the main circuit equipment.
1, the conventional opening 56 for operating the inner bogie is removed from the face plate 51 on the front side of the outer bogie frame 50, and an operating lever 69 for operating the panel is provided.
It is comprised of operating mechanism members 62 to 68 for horizontally moving the inner truck by engaging the inner truck with a guide seat 61 on the front surface of the inner truck frame, and an operation box 70 that houses the operating mechanism. The engagement relationship between the switchboard frame body, the outer truck, and the inner truck is the same as the conventional one.

4 and 5 show the inner trolley 31 inserted into the main circuit, but the operating lever 69 is connected to the operating box 70.
It is directly connected to a circular lever 64 through the groove, and this circular lever is fixed to the operating mechanism rotating shaft 62. In other words, “insertion” and “disconnection” of the operating lever
Each operation is transmitted as a rotational operation force of the rotating shaft, and the rotational movement of the rotating arm member 63 provided at one end of this rotating shaft, the guide shaft 65 provided on this rotating arm member, and the guide roller 66 is transferred to the guide roller 66. By converting the motion into horizontal movement at the guide seat 61 on the front surface of the inner truck to be connected, it is possible to horizontally insert and disconnect the inner truck. Note that FIGS. 7 and 8 show the inner bogie disconnected state.

In addition, although this example describes the case of a combination type main circuit component, the part corresponding to the inner trolley may also be used for a sheath, disconnector, other switchgear, or other drawer equipment. Although the figure shows a single stacked structure, it is also possible to use a multi-tiered structure, and the same effects as in the embodiments described above can be obtained.

As described above, according to the present invention, in a double bogie device consisting of an inner bogie frame containing the main circuit components and equipment and an outer bogie housing the inner bogie frame, the operating lever provided on the front surface of the outer bogie, that is, the front surface of the switchboard, can be operated. The structure is such that the inner bogie body moves horizontally by rotation and the circuit can be connected or disconnected, so unlike the conventional device that operates the inner bogie directly from the opening of the outer bogie face plate, the circuit's live parts and In addition to eliminating the anxiety of incorrect operation, the large operating force generated from the weight of the inner trolley and the contact pressure of the main circuit contactor can be easily and reliably operated with a single operating lever, making it easier to be attentive to operating the inner trolley and to reduce the amount of effort before and after operation. In addition, by configuring the operation lever to be rotated within a groove-shaped recess that is closed to the front surface of the outer trolley provided in the operation box, the front face of the outer trolley can be rotated. The conventional opening in the plate can be eliminated and the front of the outer truck can be completely closed off.
It has a dust-proof, drip-proof structure, a protective structure for foreign specifications, etc., and can be configured to fully deal with blast countermeasures in the event of an internal accident. This has the effect of providing a panel operation drawer device.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional double-truck drawer-type switchboard in which the inner trolley device is operated and inserted into the main circuit, and Figure 2 shows the inner trolley device disconnected from the main circuit. FIG. Figures 3 to 12
The figures show one embodiment of the present invention, and FIG. 3 shows a state in which the outer trolley device is carried into the switchboard frame body and the inner trolley device is inserted into the main circuit by the operating lever, and FIG. Details of the operation box shown in the figure, Figure 5 is a cross section taken along the - line in Figure 4, Figure 6 is a state in which the inner trolley device is disconnected from the main circuit by the operation lever, and Figure 7 is the operation box shown in Figure 6. Part details, 8th
The figure shows a cross section taken along the - line in Fig. 7, Fig. 9 shows a state in which the inner cart device is disconnected and the outer cart device is carried out from the switchboard frame body, and Fig. 10 shows the switchboard frame body after the outer cart device has been carried out. The figure shows the outer cart device after the inner cart has been carried out, and FIG. 12 shows the inner cart device which has been carried out from the outer cart device. In the figure, 1 is the switchboard frame body, 2 is the control circuit unit door, 3 is the door handle, 4 is the door surface mounting parts,
5 is a control circuit unit, 6 is a control circuit board internal component,
7 is a control circuit external cable entry port, 8 is a control circuit cable entry unit, 9 is a control cable duct, 10 is a main circuit power supply unit, 11 is a main circuit power supply bus, 12 is a main circuit power supply branch bus, and 13 is a main circuit power supply. Side insulator tube, 14 is main circuit power supply side contact, 15
1 is a main circuit load cable entry port, 16 is a main circuit load cable entry unit, 17 is a main circuit load cable entry terminal, 18 is an insulator for fixing the load side terminal, 19
20 is the main circuit load side insulator, 20 is the main circuit load side contact, 21, 22, 23, 24 is the partition cover between each unit, 25 is the main circuit unit, 31 is the inner bogie frame body in the inserted state, 32 is the inner bogie frame body. An insulator for fixing the bogie power supply side, 33 a conductor on the inner bogie power supply side, 34 a power fuse, 36 a magnetic contactor, 35 and 37 connection conductors,
38 is a CT, 39 is a conductor on the load side of the inner bogie, 40 is an insulator for fixing the load side of the inner bogie, 41 is a lower wheel of the inner bogie,
42 is an upper wheel of the inner bogie, 43 is a handle for the inner bogie frame,
50 is the outer truck frame body, 51 is the face plate,
52 is a handle, 53 is a wheel, 54 is a guide rail, 5
5 is a lower guide rail, 56 is an opening for operating the inner truck, 61 is a guide seat, 62 is an operating mechanism rotation shaft, 63 is a rotating arm member, 64 is a circular lever for operation, 65 is a guide shaft, and 66 is a guide roller. , 67
is a pin for preventing the guide roller from falling off, 68 is a guide rail hole, 69 is an operating lever, 70 is an operating box, 71 and 72 are intermediate bearings, 73 is an end bearing,
70a is a groove-like recess. Note that the same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. An inner trolley device that incorporates the main circuit components of the double trolley pull-out device and connects or disconnects the main circuit by horizontal movement, and a main circuit unit that loads this inner trolley device and engages with the switchboard frame body. In the configured outer trolley device, an operation box is attached to the front surface of the outer trolley device, which is the front surface of the switchboard, and a groove-shaped recess that is closed to the front surface of the outer trolley device is provided in the operation box. A rotary shaft is rotatably attached to the operation box so as to pass through the groove-shaped recess, and an operation lever is attached to the rotary shaft and rotated within the groove-shaped recess. A rotary arm member attached to a rotary shaft is connected to the inner truck device by a coupling mechanism, and the connection/disconnection of the inner truck device can be operated from the front of the outer truck device using the operating lever. A panel surface operation drawer device for a double trolley drawer-type switchboard featuring the following features: