JPH09327512A - Garter rack with power unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize a space around a patient and to highly safely supply power to plural electric equipments for medical use with excellent handleability while administering an intravenous drip injection. SOLUTION: This rack is provided with a pole part, a hanger part for hanging a transfusion liquid container, a case body, a power unit 10 housed inside the case body and a caster. The power unit 10 is provided with a transformer 12 for receiving power supply through a power supply cord 50 provided with a 2P plug 51 connectable to a wall socket, an earth leakage breaker 13, plural 3P sockets with ground electrodes for respectively receiving the power supply through the earth leakage breaker 13 and protective resistors RS1 and RS2 connected between the respective ground electrodes of the plural 3P sockets with the ground electrodes and the secondary side of the transformer 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a gertle rack used for hanging an infusion container in a medical field such as an operating room and a technical field of a power supply device for medical electrical equipment.

[0002]

2. Description of the Related Art Heretofore, this type of gartle rack has been constructed so that an infusion container such as a glass bottle, a plastic bottle or a vinyl bag containing a liquid for drip can be hung considerably higher than the position of the patient. There is. According to the gurtle rack configured as described above, it is convenient to automatically drip by the action of gravity without occupying a limited effective space around the patient in an operating room or the like.

On the other hand, with the advancement of medical treatment, medical electrical equipment having a 3P (pin) plug with a ground electrode for preventing electric shock to a patient has become common, but it is economical for hospital facilities. 3P with a grounding electrode for various reasons and reasons such as lack of recognition
In many cases, outlets are not popular. In this case, replace the 3P plug of the medical electrical device with the existing 2P that does not have a ground electrode.
Although the grounding electrode is connected to the (pin) outlet in a floating state to use the medical electric device, this cannot maintain safety. Therefore, there has been proposed a medical safety power supply device using an insulating transformer that receives power from a 2P outlet as an input and outputs (supplies power) from a 3P outlet with a grounding electrode by a pseudo ground circuit (Medical Engineering Vol. 57,
No. 7,1987, Patent 1735759). According to this medical safety power supply device, even in a medical facility without a grounding facility, it is possible to use the medical electrical device having the 3P plug with the grounding electrode as it should be.

[0004]

However, since the center of gravity is first high in the above-mentioned gartle rack, the stability when a heavy infusion container is hung is deteriorated. In this case, it is sufficient if a nurse or other person holds down the turtle rack so that it does not fall, but the presence of a nurse who holds the turtle rack in this way is an obstacle, especially in the operating room, and the effective space around the patient is impaired. Occupied as needed, leading to poor surgical quality. In addition, there is a problem in that the reliability of the pressing itself by hand is fundamentally low. On the other hand, constructing the gartle rack in a heavy and long manner can solve such a problem, but especially placing such a large tool near the patient unnecessarily occupies an effective space around the patient in the operating room. Will result. In addition, it is not a good idea to consider the difficulty in moving such a heavy and heavy gartle rack within the facility.

On the other hand, the above-mentioned medical safety power supply device inevitably becomes a considerably large and heavy device because it includes an insulating transformer and the like. Placing such a large and heavy device also unnecessarily occupies an effective space around the patient, which hinders surgery. For this reason, the above-mentioned medical safety power supply device has not been put into practical use.

On the other hand, if electric power is directly supplied to the medical electrical equipment from a 2P outlet or a 3P outlet as a wall outlet provided on the wall of an operating room or the like, it is dangerous because an electric shock is given to a patient due to an electric leakage. In particular, in the case of a leakage of electric current in one medical electric device, the breaker which is the base of the wall wiring falls, so that there is an inconvenience that the power supply of the entire room is shut down. Furthermore, when power is supplied from a wall outlet to multiple medical electrical devices using octopus wiring, as is currently done in normal medical facilities, the power cord will be scattered on the floor in the operating room. However, there is also a problem in that it interferes with surgery and the power cord may come off or get caught on the foot.

The present invention has been made in view of the above-mentioned problems, and provides a gator rack with a power supply device capable of supplying a highly safe and convenient power supply while effectively utilizing the space around the patient receiving the drip. The challenge is to provide.

[0008]

In order to solve the above-mentioned problems, a turtle rack with a power supply device according to a first aspect of the present invention is provided with a pole portion which is vertically arranged and an upper end side of the pole portion. Hanger part for hanging an infusion container, and a housing attached to the lower end side of the pole part,
A power supply device housed in the housing and a caster on which the housing is mounted are provided, and the power supply device is supplied with power via a power cord having a 2P plug connectable to a wall outlet. A transformer having a structure in which the primary side and the secondary side are electrically insulated from each other, an earth leakage breaker, and a power supply from the secondary side of the transformer via the earth leakage breaker, and the housing 3P outlets with a plurality of grounding electrodes provided respectively on the outside, and a plurality of 3P outlets with grounding electrodes
It is characterized by including a protective resistor connected between each ground electrode of the P outlet and the secondary side of the transformer.

According to the gurtle rack with the power supply device of the first aspect, first, if the infusion container is hung on the hanger portion attached to the upper end side of the pole portion, the infusion container is placed higher than the position of the patient. Infusion can be performed using the infusion solution contained in the infusion solution container. Here, since the comparatively heavy power supply device equipped with a transformer and the like is housed in the housing attached to the lower end side of the pole part, the center of gravity of the gartle rack becomes lower according to the weight of the power supply device. ,
The stability of the gertle against falls is significantly improved. Further, since the casing is placed on the casters, the movement of the relatively heavy gartle rack can be performed by pushing the pole portion and the casing portion by hand.

Then, as a wall outlet, a power cord having a 2P plug is connected to a 2P outlet having no ground electrode, and a secondary side is supplied by a transformer supplied with power to the primary side through the power cord. With a grounding electrode connected to 3
Power is supplied to two pins of the P outlet other than the ground electrode. At the same time, since the secondary side of the transformer and the protective resistor having a structure in which the primary side and the secondary side are electrically insulated function as a pseudo ground circuit, the grounding of a 3P outlet with a ground electrode is performed. The pole literally functions as a ground pole. Therefore, in this 3P outlet with a ground electrode,
When the medical electric device having the P plug is connected, the power supply can be performed in the originally intended use mode, that is, while keeping the grounded state of the medical electric device in good condition. Since a plurality of such 3P outlets with grounding electrodes are provided in the power supply device, if a plurality of medical electric devices are connected to them, only one power cord from the wall outlet is needed. It is possible to reduce the scattering of the power cord on the floor in the operating room, as compared with the case where power is supplied to a plurality of medical electric devices by using the loose wire wiring. Furthermore,
Since a leakage breaker is provided on the secondary side of the transformer, even if a leakage occurs in a medical electric device connected to a 3P outlet, the leakage breaker operates to cause a patient or medical electric device to operate. The risk to

As described above, even in a medical facility in which a 3P outlet with a ground electrode is not provided as a wall outlet, the surroundings of a patient who receives a drip in an operating room or the like and at the same time is treated and examined by a medical electric device. By placing the gartle rack with a power supply device, it is possible to effectively use the space around the patient and supply power to a plurality of medical electric devices with high safety and convenience while performing infusion. At this time, the space inside the operating room is usually smaller than the case where the power supply unit is placed separately, usually by placing the power supply unit in a space where there is little use, usually under the conventional turtle mount (on the casters of the gartle mount). It is possible to use the weight much more effectively, and by providing a power supply unit that is basically fairly heavy including this transformer under the pole part of the turtle rack, this weight improves the stability of the turtle rack against tipping. Since it is also used for this purpose, it is extremely efficient.

According to a second aspect of the present invention, there is provided a gurtle rack with a power supply device according to the first aspect, wherein the protective resistors are made of different materials and are connected in parallel. It is characterized by having a resistance element.

According to the gartle rack with the power supply unit according to the second aspect, even if the resistance element is destroyed due to a device failure, aging, or some other unpredictable reason, both of the resistance elements are made of different materials. There is almost no possibility of being destroyed at the same time. Since these resistance elements are connected in parallel, even if one of the resistance elements is destroyed, the remaining one resistance element maintains the minimum function of the protective resistor. Therefore, if one of the damaged parts is repaired during this period, the actual problem does not occur.

According to a third aspect of the present invention, there is provided a gurtle rack with a power supply device, which is the same as the gurtle rack with a power supply device according to the first or second aspect, wherein the power source device is connected to a primary side of the transformer. It is characterized by further comprising a current breaker.

According to the gartle rack with a power supply unit according to a third aspect, when an excessive current flows in the power supply unit, the overcurrent breaker operates, so that each circuit and wiring in the power supply unit is destroyed. Can be prevented.

According to a fourth aspect of the present invention, there is provided a gurtle rack with a power supply device according to any one of the first to third aspects, wherein the power source device is provided outside the casing. It is characterized by further comprising a protective ground terminal connected to the pole.

According to the gertle rack with a power supply device of the fourth aspect, in a medical facility having a grounding facility, if the protective ground terminal connected to the ground electrode of the power supply device is connected to the ground of this medical facility, The ground electrode of the 3P outlet can be more surely and strictly set to the ground potential.

According to a fifth aspect of the present invention, there is provided a gurtle rack with a power supply device according to any one of the first to fourth aspects, wherein the power source device is provided outside the casing. It further comprises a power lamp connected to the secondary side of the container.

According to the gartle rack with a power supply unit according to a fifth aspect, whether or not the power supply is normally performed without the leakage breaker or the overcurrent breaker being operated by the power supply unit is lit state of the power supply lamp. Is easy to see visually.

According to a sixth aspect of the present invention, there is provided a gurtle rack with a power supply device, wherein the transformer has a double insulation structure.

According to the gartle rack with the power supply unit of the sixth aspect, the secondary side of the transformer having the double insulation structure and the protection resistor are pseudo-potentials capable of providing a potential closer to the ground potential. Functions as a ground circuit.

According to a seventh aspect of the present invention, there is provided a gurtle rack with a power supply device according to any one of the first to sixth aspects, wherein the housing includes a metal chassis and a molded case. Characterize.

According to the gertle rack with the power supply device of the seventh aspect, the housing including the power supply device can be easily constructed as a part of the turtle rack by the metal chassis and the molded case.

According to an eighth aspect of the present invention, there is provided a gurtle rack with a power supply device. In the gurtle rack with a power supply device according to the first to seventh aspects, the pole portion is configured to be extendable / contractible in the vertical direction. Is characterized by.

According to the gartle rack with the power supply device of the eighth aspect, the height of the infusion container hung on the hanger portion provided on the upper end side of the extendable pole portion can be easily adjusted to the height of the patient. The infusion can be performed well.

According to a ninth aspect of the present invention, there is provided a gurtle rack with a power supply device, which is mounted on a side surface of the pole portion in the gurtle rack with a power supply device according to the first to eighth aspects. It is characterized by further including a hook for hanging.

According to the gartle rack with a power supply unit of claim 9, when the power cord is hooked on the hook attached to the side surface of the pole portion, when the gartle rack is moved using casters, Easy to move without disturbing the power cord.

According to a tenth aspect of the present invention, there is provided a gurtle rack with a power supply device according to any one of the above-mentioned first to ninth aspects. It is characterized in that the caster has a weight not more than a predetermined height determined according to the horizontal size of the caster.

According to the gartle rack with the power supply device of the tenth aspect, a hand calculation is performed experimentally in accordance with the horizontal size of the caster, such as the horizontal length of the caster's legs and the number of the caster's legs. By or by computer simulation, the weight that makes the center of gravity of the gartle rack less than or equal to the height at which it is determined that the gartle rack is hard to fall,
If it is given to the housing and power supply unit that are placed under the pole, it will not fall over even when a heavy infusion container is hung or the pole is pushed and moved by casters, especially during surgery. Women do not have to support the turtle rack with their hands.

The operation and other advantages of the present invention will be apparent from the embodiments described below.

[0031]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a gartle rack with a power supply device according to an embodiment of the present invention.

In FIG. 1, a gartle rack 1 with a power supply device is provided.
Is mainly composed of a pole portion 2, a hanger portion 3, a casing 4, casters 5, and a power supply device 10. Pole part 2
Are set upright. The pole portion 2 is a double pole, and is an outer pole 2a fixed to the housing 4.
The inner pole can be moved up and down from inside. At any position, the handle 6a of the double pole joint 6 is used to fix the vertical position of the inner pole. Below the joint portion 6, a tube guide 7 is attached to the outer circumference of the outer pole 2a. A tube connected to an infusion container hung on the hanger portion 3 is passed through the tube guide 7, and the position of the tube can be regulated so as to be along the pole portion 2. As a result, by vertically expanding and contracting the pole portion 2, the height of the infusion container hung on the hanger portion 3 can be easily adjusted according to the height of the patient, and the drip can be favorably performed. .

A hook 8 for hanging the power cord 50 is provided on the side surface of the pole portion 2. When the power supply device is not in use, the power supply cord 50 can be rolled around the hook 8 so that the power supply cord 50 can be easily moved without moving when the gantry rack 1 is moved using the casters 5.

The hanger portion 3 is attached to the upper end of the pole portion 2 and has a hook 3a for hanging an infusion container.
Is equipped at both ends. The housing 4 is attached to the lower end side of the pole portion 2 and includes a metal chassis and a molded case. As described above, the housing 4 can be easily configured as a part of the gartle rack 1 by the metal chassis and the molded case.

The power supply device 10 is housed in the housing 4. The casing 4 is mounted on the casters 5, and the casters 5 each have, for example, six legs with rollers. The number of legs is 3, 4, 8 10
Any appropriate number such as a book may be used.

The housing 4 and the power supply device 10 are casters 5.
According to the horizontal size of the caster 5 such as the horizontal length of the foot and the number of feet of the caster 5, the turtle 1 falls over the center of gravity of the turtle 1 experimentally, by manual calculation, or by computer simulation. It is configured to have a weight that is less than or equal to the height that is difficult to control. Therefore, if you put a heavy infusion container on the hanger part 3,
Even when the pole portion 1 and the like are pushed and moved by the casters 5, for example, the gartle rack 1 having a total weight of about 20 kg and a low center of gravity is hard to fall down. In particular, since it is not necessary for a nurse or the like to support the gurtle rack 1 by hand during the operation, a high-quality operation can be expected without disturbing the operation.

On the front panel of the power supply device 10, the 3P outlets 20 with ground electrodes are divided into two rows and arranged vertically in pairs of two, for a total of four. Further, two protective ground terminals 21 are arranged vertically.

As shown in FIG. 2, two 3P outlets 20 with grounding electrodes are vertically arranged on the rear panel 10a of the power supply device 10. The breaker switch 11a of the overcurrent breaker 11 to be described later, The breaker switch 13a of the earth leakage breaker 13, which will be described later, and the power lamp 14 that lights to indicate whether or not the power supply by the power supply device 10 is normally performed can be easily visually recognized by the lighting state.

In FIG. 1, a 2P plug 51 is provided at the tip of the power cord 50.
The P plug 51 is connected to a 2P outlet as an existing wall outlet. It is also possible to connect such a 2P plug 51 to a 3P outlet. In particular, the power cord 50 may be fixedly connected to the power supply device 10 or may be detachably connected thereto.

FIG. 3 shows a circuit configuration inside the power supply device 10. In FIG. 3, the power supply device 10 includes an overcurrent breaker 11, a transformer 12, an earth leakage breaker 13, a power supply lamp 14, 3P plugs C1 to C6 corresponding to the 3P outlet 20 in FIGS. 1 and 2, and two protective ground terminals. 21a and 21b and protection resistors RS1 and RS2 are provided, and are configured to have, for example, a rated input of 100 VAC, a rated output of 100 VAC, and a capacity of 1 KVA.

The transformer 12 is supplied with power via a power cord 50 having a 2P plug 51 and has a structure in which the primary side and the secondary side having a voltage ratio of 1: 1 are electrically insulated. . Preferably, the transformer 12 has a double insulation structure. In this way, the transformer 12 having the double insulation structure
The secondary side and the protection resistors RS1 and RS2 function as a pseudo ground circuit capable of providing a potential closer to the ground potential.

The overcurrent breaker 11 has, for example, a current of 10
It is a breaker that drops at A and is connected to the primary side of the transformer 12. When excessive current flows in the power supply device 10,
Since the overcurrent breaker 11 operates and the breaker drops,
It is possible to prevent destruction of each circuit and wiring in the power supply device 10.

The earth leakage breaker 13 has, for example, a sensitivity current of 6
It is a breaker of mA and is connected to the secondary side of the transformer 12. When a leak occurs in a medical electric device or the like connected to the 3P outlets C1 to C6, the leakage breaker 13 falls, so that the risk to the patient and the medical electric device can be reduced.
The sensitivity current of the earth leakage breaker 13 is increased / decreased according to the application (namely, what kind of medical electric device is used). For example, a weak earth leakage may seriously affect the patient. In the case, the current may be 1 to 3 mA.
It may be 0 to 30 mA.

The power supply lamp 14 is turned on when the power supply device 10 does not operate the earth leakage breaker 13 and the overcurrent breaker 11 and supplies power normally. In particular, since the power supply lamp 14 is provided on the secondary side of the transformer 12, even if the earth leakage breaker 13 falls, the lighting is extinguished, which is practically convenient.

The 3P outlets C1 to C6 with ground electrodes are
Power is supplied from the secondary side of the transformer 12 via the earth leakage breaker 13, respectively. These 3P outlets C1 to C6
As such, so-called hospital grade ones are preferably used. The ground electrodes of the 3P outlets C1 to C6 are connected to the secondary side of the transformer 12 via protection resistors RS1 and RS2, and are also directly connected to the protection ground terminals 21a and 21b, respectively.

The protective ground terminals 21a and 21b are connected to the ground electrodes of the 3P outlets C1 to C6. Therefore, in a medical facility with a grounding facility, the protective grounding terminal 2
If you connect 1a or 21b to the ground of this medical facility,
The ground electrode of the 3P outlet can be more surely and strictly set to the ground potential. It should be noted that although there are two protective ground terminals, the number may be one, and by using both protective ground terminals, the ground resistance can be reduced and the ground potential can be reliably obtained even when one of them does not function. be able to.

The protective resistors RS1 and RS2 are made of different materials and are connected in parallel. Examples of these resistors include winding resistors, carbon resistors, and cement resistors. By using the two protective resistors made of different materials in this way, even if the protective resistor RS1 or RS2 is destroyed due to some unforeseeable reason such as a device failure or aging, both of them are made of different materials. At the same time, there is almost no possibility of destruction. These resistance R
Since S1 and RS2 are connected in parallel, even if either of the resistors RS1 and RS2 is destroyed, the remaining one resistor RS1 or RS2 can maintain the minimum function as a protective resistor.

Next, the operation of the present embodiment configured as above will be described with reference to FIGS. 1 and 3. First, FIG.
In (1), the infusion solution is hung on the hanger portion 3 and the infusion solution container is placed higher than the position of the patient by an appropriate height, so that the infusion solution is placed in the infusion solution container. At this time, since the comparatively heavy power supply device 10 including the transformer 12 and the like is housed in the housing 4, the center of gravity of the gartle rack 1 is lowered according to the weight of the power supply device 10, The stability of the turtle rack 1 against falling is significantly improved. Furthermore, since the housing 4 is mounted on the casters 5, the relatively heavy gantry rack 1 can be moved without problems by pushing the pole portion 2 or the housing 4 by hand.

On the other hand, as an existing wall outlet, AC1
When the 2P plug 51 is connected to a 2P outlet that does not have a ground electrode of 00V, the transformer 12 in FIG.
Power is supplied to the primary side of the power cord 50 at AC 100V. The transformer 12 supplies power of AC100V to two pins of the 3P outlets C1 to C6 with a grounding pole connected to the secondary side other than the grounding pole. at the same time,
Due to the pseudo ground circuit configured by the secondary side of the transformer 12 and the protection resistors RS1 and RS2, the ground electrodes of the 3P outlets C1 to C6 with ground electrodes function as ground electrodes. That is, the 3P outlets C1 to C6 literally function as a 3P outlet with a ground electrode.

A medical electric device having a 3P plug with a ground electrode is connected to the 3P outlet with a ground electrode. Then
It is possible to operate the medical electric device while keeping the grounded state of the medical electric device in good condition. At this time, since a plurality (that is, six) of 3P outlets C1 to C6 with ground electrodes are provided, a plurality of medical electric devices can be connected. It does not scatter the power cord to the floor, as if you were powering multiple medical electrical devices from the wall outlet using octopus wiring.

Particularly, since the leakage breaker 13 having high current sensitivity is provided on the secondary side of the transformer 12, even if leakage occurs in a medical electric device connected to the 3P outlets C1 to C6, By operating the earth leakage breaker 13, it is possible to reduce the risk to the patient and the medical electric equipment.

As described in detail above, according to the present embodiment, even in a medical facility in which a 3P outlet with a grounding electrode is not provided as a wall outlet, it is possible to receive an intravenous drip in an operating room and at the same time use a medical electrical device. By arranging the gartle rack 1 with the power supply device around the patient to be treated or examined, the space around the patient can be effectively used, and while performing infusion, it is highly safe and convenient for use with multiple medical electrical devices. Power can be supplied well. At this time, it is possible to prevent the power cords from being scattered on the floor in the operating room, and the power supply device 10 is placed in a space that is almost useless, usually under a conventional turtle rack (on the casters of the turtle rack). As a result, the space in the operating room can be used much more effectively as compared with the case where the power supply device 10 is placed separately, and the power supply device 10 including the transformer 12 and the like, which is basically heavy, is mounted on the pole of the turtle rack 1. By providing the portion under the portion 2, this weight can be effectively used for improving the stability of the turtle rack 1 against falling.

In the above embodiment, AC100V
Although the case of supplying the power source is described, the present embodiment is effective regardless of the type of the power source. Further, the number of 3P outlets and the number of protective ground terminals provided on the front and rear panels of the power supply device 10 can be appropriately increased or decreased according to the application.

[0054]

According to the gator rack with a power supply device according to the first aspect of the present invention, even in a medical facility where an existing 2P outlet is not provided as a wall outlet and a 3P outlet with a ground electrode is not provided, the patient By effectively utilizing the surrounding space, it is possible to supply power to a plurality of medical electric devices with high safety and convenience while performing infusion.

According to the gartle rack with the power supply device of the second aspect, one of the resistance elements is left even if one of the resistance elements is broken due to a device failure, aging, or some other unexpected reason. The minimum function of the protection resistor is maintained and a highly safe power supply can be performed.

According to the gartle rack with the power supply device of the third aspect, it is possible to prevent each circuit and wiring in the power supply device from being destroyed by an overcurrent. According to the gurtle rack with the power supply device of claim 4, in a medical facility having a grounding facility, the ground electrode of the 3P outlet can be more reliably and strictly set to the ground potential, which further enhances the safety in power supply. To be

According to the gartle rack with the power supply device of the fifth aspect, whether or not the power supply is normally performed can be easily visually recognized by the lighting state of the power lamp.
Greatly improved usability in the medical field.

According to the gartle rack with the power supply device of the sixth aspect, more reliable grounding can be realized. According to the gertle rack with the power supply device according to the seventh aspect, the housing including the power supply device can be easily configured as a part of the gartle rack, and the gartle rack can be manufactured relatively easily and inexpensively as a whole.

According to the gurtle rack with the power supply device according to the eighth aspect, the drip can be satisfactorily performed, and the burden on doctors and nurses in the medical field can be reduced. According to the gator rack with the power supply device of the ninth aspect, when the gator rack is moved or the power source is unused, the power cord does not get in the way and can be easily moved, which is convenient.

According to the gartle rack with the power supply device of the tenth aspect, it is difficult to fall down even when a heavy infusion container is hung or a pole portion or the like is pushed and moved by a caster.
Especially, it is very convenient because nurses do not have to support the turtle rack by hand during surgery.

[Brief description of drawings]

FIG. 1 is a front view of a gartle rack with a power supply unit according to the present embodiment.

FIG. 2 is a front view of a rear panel of the power supply device provided in the present embodiment.

FIG. 3 is a circuit diagram of a power supply device provided in the present embodiment.

[Explanation of symbols]

 1 ... Gartle rack with power supply device 2 ... Pole part 3 ... Hanger part 4 ... Housing 5 ... Caster 8 ... Power cord hook 10 ... Power supply device 11 ... Overcurrent breaker 12 ... Transformer 13 ... Electric current breaker 14 ... Power lamp C1 to C6 ... 3P socket RS1, RS2 ... Protective resistance 50 ... Power cord 51 ... 2P plug

Claims (10)

[Claims] 1. A pole portion vertically arranged, a hanger portion attached to an upper end side of the pole portion for hanging an infusion container, and a casing attached to a lower end side of the pole portion. And a caster on which the housing is mounted, the power supply supplying power via a power cord having a 2P plug connectable to a wall outlet. A transformer having a structure in which the primary side and the secondary side are electrically insulated, a leakage breaker, and a power supply from the secondary side of the transformer via the leakage breaker, respectively, and the casing. A plurality of 3P outlets with ground electrodes respectively provided outside the body, and a protective resistor connected between each of the ground electrodes of the plurality of 3P outlets with ground electrodes and the secondary side of the transformer. Be prepared Power supply with Gatoru mosquitoes and butterflies. 2. The gertle rack with a power supply device according to claim 1, wherein the protection resistor has at least two resistance elements made of different materials and connected in parallel. 3. The gantry rack with a power supply device according to claim 1, wherein the power supply device further includes an overcurrent breaker connected to the primary side of the transformer. 4. The power supply device further comprises a protective ground terminal provided outside the housing and connected to the ground electrode, according to any one of claims 1 to 3. The turtle rack with the power supply unit described in. 5. The power supply device according to claim 1, further comprising a power supply lamp provided outside the housing and connected to a secondary side of the transformer. The gertle rack with a power supply device according to 1 above. 6. The gantry rack with a power supply device according to claim 1, wherein the transformer has a double insulation structure. 7. The gantry rack with a power supply device according to claim 1, wherein the housing includes a metal chassis and a molded case. 8. The gantry rack with a power supply device according to claim 1, wherein the pole portion is configured to be capable of expanding and contracting in the vertical direction. 9. The gertle with a power supply device according to claim 1, further comprising a hook attached to a side surface of the pole portion for hanging the power cord. Rack. 10. The casing and the power supply device have a weight such that a center of gravity of the gurtle rack with the power supply device is equal to or lower than a predetermined height determined according to a horizontal size of the caster. The gartle rack with a power supply device according to any one of claims 1 to 9.