JPH08163722A - Lifter for handling distribution panel device - Google Patents

Abstract

PURPOSE: To easily perform the installation and the removal of a power device by moving the load-carrying platform of a lifter left and right and up and down with respect to a moving carriage by handle operation. CONSTITUTION: A lifter 5 is provided with a movable carriage 6 with casters which travels on the floor surface and an elevator mechanism comprising a load-carrying platform 7 moving up and don along support rail 6a in a vertical direction, an elevating handle 8, a cable 9 and pulley 10. Also, an adapter 11 with a wheel which is mounted on the load-carrying platform 7 to move in the front and rear direction is provided. A hardware 11a connected to the main body of a breaker 3 is provided at the tip of the adapter 11. In the lifter 5, further a left and right movement adjusting mechanism 12 with respect to the load-carrying platform 7, a pantagraph type parallel link mechanism 13 for interconnecting the load-carrying platform 7 and the adapter 11 and a lever type operation lever 14 for drawing out a device are provided. The load-carrying platform 7 is moved left and right by an adjusting handle 12a. Thereby, a power device is easily installed into a distribution panel and removed thereform.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handling lifter used when mounting or removing a power device such as a circuit breaker, a disconnector, or a grounding switch incorporated in a switchboard such as a high-voltage switchboard.

[0002]

2. Description of the Related Art Since the above-mentioned electric power equipment weighs several hundred kilograms, it is almost impossible to pull out or install the equipment from the switchboard during maintenance or inspection by human power alone. Yes, I use a special lifter for that purpose. This lifter has a configuration in which a moving carriage is equipped with an elevating and lowering platform that can be moved up and down by a handle operation, and an adapter that connects to a power device and moves back and forth on the platform. Move the dolly to position the lifter on the front of the power equipment mounted on the switchboard, and pull out the fixing legs to the floor side to fix the moving dolly so that the trolley does not move. Together, they are raised and lowered, and the adapter is manually advanced on the bed to be coupled to the equipment. In this state, force is applied to the adapter to pull the device forward from the switchboard and collect it on the loading platform. Then, the loading platform is lowered and the mobile cart is transported to a predetermined place. When the device is attached to the switchboard, the device is carried into the switchboard in the reverse order of the above procedure and loaded in a predetermined place.

[0003]

By the way, the conventionally used handling lifter has the following drawbacks in terms of operability and function, and an improvement measure is required. In other words, 1) Since the mobile board is used to access and position the switchboard, the lifter can be repeatedly moved to bring the adapter directly in front of the equipment in order to accurately align the adapter mounted on the bed with the predetermined equipment mounting position. Adjustment is necessary and the work is troublesome.

2) Plugs (tulip contacts) in which terminals of electric power equipment project rearward and are installed in a switchboard
Since it is connected to the power plug, it takes a lot of force to pull out the terminal from this plug and pull out the device forward.In particular, in the case of large size devices, it is not possible to pull out the device from the switchboard by human power alone. However, the current situation is to pull out the device by using a jack.

3) In the conventional lifter, the adapter with wheels mounted on the loading platform is guided and supported in the front-rear direction along the rails of the loading platform, and the movement is smooth in an empty state. When a heavy equipment is connected to the front of the adapter, a large moment load is applied, so the movement of the adapter is not smooth and it is difficult to put the equipment in and out.

The present invention has been made in view of the above points, and a lifter for handling a switchboard device, which is configured by improving a conventional lifter so as to easily attach and remove a power device to and from a switchboard in a short time. To provide.

[0007]

In order to achieve the above object, according to the present invention, a moving carriage is moved up and down on the cargo bed by connecting it to an elevating and lowering bed which is moved up and down by a handle operation and an electric power device. The lifter for handling, which is equipped with the adapter, is configured as follows.

(1) A handle operation type left and right movement adjusting mechanism for moving the lifter carrier in the left and right direction with respect to the moving carriage is provided. (2) The lever-type adapter is provided with a lever-type operation lever for pulling out power equipment from the switchboard. (3) The platform of the lifter and the adapter are connected by a pantograph-type parallel link mechanism capable of expanding and contracting.

(4) Further, the handle operating type adjusting mechanism, the parallel link mechanism, and the lever type operating lever described in the above paragraphs (1) to (3) can be installed together.

[0010]

When the handle of the adjusting mechanism is operated with the construction of item (1) among the above-mentioned items, the platform moves in the left-right direction with respect to the moving carriage via the feed screw mechanism connected to the operating handle. As a result, by roughly positioning the moving carriage of the lifter with respect to the switchboard and stopping it, by operating this adjustment mechanism, the positioning can be corrected by finely adjusting the adapter in the left-right direction together with the luggage carrier. .

Further, according to the configuration of the item (2), when the operation lever is manually operated by applying a force in the pull-out direction in a state where the adapter is connected to the device loaded on the switchboard, the device is operated according to the principle of leverage. A large force acts, which allows you to easily pull out the device by pulling out the terminal from the plug on the switchboard side. Further, according to the configuration of (3), the adapter is constrained by the parallel link mechanism and moves back and forth while always maintaining a predetermined posture with respect to the platform. Therefore, even when the device is connected to the front surface of the adapter, the momentary load that tends to tilt the posture of the adapter is received by the parallel link mechanism, which allows the adapter to move smoothly on the loading platform, and allows the device to move to the distribution board. Easy to take in and out.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a closed type switchboard, 2 is a switchboard 1
Circuit breaker operation panel incorporated in the panel of No. 3, 3 is a circuit breaker attached to the front of the operation panel 2, and 4 is a plug-in plug (tulip that connects the terminal drawn out behind the circuit breaker 3 and the bus bar in the panel). Contact) 5 is a handling lifter of the present invention. Here, the lifter 5 includes a movable carriage 6 with casters that travels on the floor surface, a lifting platform 7 that moves up and down along a vertical support rail 6a built on the moving carriage 6, and a lifting handle 8, The lifting and lowering mechanism of the loading platform 7 including the rope 9 and the pulley 10 and the wheeled adapter 11 mounted on the loading platform 7 and movable in the front-rear direction are configured as basic elements. The adapter 11 is provided at the tip thereof with a connecting fitting 11a that is connected to the main body of the circuit breaker 3.

Further, according to the present invention, the lifter having the above-described structure has a lateral movement adjusting mechanism 12, a pantograph type parallel link mechanism 13 for connecting the platform 7 and the adapter 11, and a lever type for pulling out a device. Operating lever 14
Is additionally equipped. Here, the left and right movement adjusting mechanism 12
Is a mechanism for moving the loading platform 7 left and right by operating the adjustment handle 12a. As shown in FIG. 2, the loading platform 7 is guided and supported by a rod 7b laid between the left and right support frames 7a, and A feed screw 12b connected to the adjusting handle 12a is screwed to a screw seat 7c attached to the bed 7. When the adjusting handle 12a is rotationally operated with such a configuration, the loading platform 7 moves in the left-right direction indicated by the arrow P along the rod 7b via the feed screw 12b.

The parallel link mechanism 13 is an expandable pantograph in which link pieces are assembled as shown in the drawing, and connects the adapter 11 and the rear end of the luggage carrier. The operation of the parallel link mechanism 12 is well known, and the adapter 11
Receives the constraint of the parallel link mechanism 13 and moves back and forth while maintaining a vertical posture. Further, the lever type operation lever 14 for pulling out the equipment is attached to the side surface of the adapter 11 with 14a as a fulcrum, and faces the tip of the lever to support the cargo bed
A stopper 7d is provided on the front end side of the. Reference numeral 7e is a locking piece that locks the adapter 11 in the retracted position.

Next, the handling lifter 5 having the above structure.
The procedure for pulling out the breaker 3 from the operation panel 2 using the will be described step by step. 1) First, the moving carriage 6 of the lifter 5 is moved to the front position of the breaker 3 to be pulled out, and the supporting leg 6b provided on the moving carriage 6 is lowered to fix the carriage on the floor surface. 2) Next, turn the lifting handle 8 to raise the loading platform 7,
The adapter 11 is adjusted to the mounting height of the circuit breaker 3, and the adjustment handle 12a of the left-right movement adjusting mechanism 12 is operated to finely adjust the adapter 11 so that the adapter 11 is located directly in front of the circuit breaker 3 together with the luggage carrier 7. In other words, the adapter 11 can be accurately positioned by operating the horizontal movement adjustment mechanism 12 while the movable carriage 6 is fixed.

3) Subsequently, the adapter 11 is moved forward on the luggage carrier 7 and coupled to the main body of the circuit breaker 3 via the connecting piece 11a. 4) In this state, remove the bolts at the four corners of the bolts fixing the circuit breaker 3 to the operation panel 2 and screw the guide pins 15 into this position to support the circuit breaker 3 and then remove all remaining bolts. And then pull the operating lever 14 toward you. With this, the breaker 3
A large pulling force acts on the terminal, the terminal comes out from the insertion plug 4 on the panel side, and the terminal can be easily pulled out from the operation panel 2.

5) From here, the adapter 11 is further moved backward to collect the breaker 3 on the loading platform 7, and then the adapter 11 is locked to the locking piece 7e. In this case, since the adapter 11 maintains the vertical posture by the action of the parallel link mechanism 13, the adapter 11 can be smoothly moved backward even while carrying the breaker 3. 6) Finally, the lifting handle 8 is operated to lower the platform 7 onto the movable carriage 6, the supporting legs 6b are removed from the floor surface, and then the movable carriage 6 is pulled and moved to a predetermined place.

When the breaker 3 is attached to the operation panel 2, the procedure is reversed. Further, in the illustrated example, the circuit breaker 3 is illustrated as the switchboard device, but the disconnecting switch other than the circuit breaker, the grounding switch for the busbar, and the like can be attached and removed by the same operation. However, the adapter 11 is replaced with a suitable one for the target device.

[0019]

As described above, according to the structure of the present invention, the problems of the conventional handling lifter are solved,
You can easily install and remove power equipment from the switchboard in a short time. In particular, by adopting the left-right movement adjusting mechanism of claim 1, accurate positioning of the adapter is simplified, and by providing the lever type operation lever of claim 2, pulling the device from the switchboard while holding a small force. Can be performed easily, and by incorporating the parallel link mechanism of claim 3, practical effects such as smooth movement of the adapter can be obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a usage state of a handling lifter according to an embodiment of the present invention.

FIG. 2 is a front view of a horizontal movement adjustment mechanism in FIG.

[Explanation of symbols]

 1 Switchboard 2 Circuit breaker operation panel 3 Circuit breaker 5 Handling lifter 6 Moving cart 7 Loading platform 8 Lifting handle 11 Adapter 12 Left and right movement adjusting mechanism 13 Parallel link mechanism 14 Operating lever

Claims (4)

[Claims] 1. A handling lifter used when mounting or removing a power device intended for a circuit breaker or the like from a switchboard, which is connected to a lifting platform that moves up and down by a handle operation on a moving carriage, and a power device. What is provided with an adapter that moves back and forth on the luggage carrier, wherein a handle operation type left and right movement adjustment mechanism that moves the luggage carrier in the left-right direction with respect to the moving carriage is provided. Lifter. 2. A handling lifter used when mounting or removing a power device intended for a circuit breaker or the like from a switchboard, which is connected to a moving dolly that moves up and down by a handle operation and a power device. A lifter for handling a switchboard device, comprising an adapter for moving back and forth on the platform, wherein the adapter is provided with a lever type operation lever for pulling out a power device from the switchboard. 3. A handling lifter used when mounting or removing a power device intended for a circuit breaker or the like on a switchboard, which is connected to a moving dolly that can be moved up and down by a handle operation and a power device. A lifter for handling a switchboard device, comprising an adapter that moves back and forth on the platform, wherein the platform and the adapter are connected by a pantograph-type parallel link mechanism capable of expanding and contracting. 4. A handling lifter used when mounting or removing a power device intended for a circuit breaker or the like on a switchboard, which is connected to a moving dolly that moves up and down by a handle operation and a power device. In a case where an adapter for moving back and forth on the loading platform is mounted, a handle operation type left and right movement adjusting mechanism, a parallel link mechanism, and a lever type operating lever described in claim 1, 2 and 3 are additionally provided. Lifter for handling the characteristic switchboard equipment.