KR20080004569U - A rail motor car for a work - Google Patents

Abstract

The present invention relates to a working rail electric car, and more specifically, to accommodate a rail of various shapes to be installed on the floor, and can run sequentially along the rail, when managing and harvesting fruit trees at any position and height Since the worker is raised to a height close to the fruit tree, it is related to a working rail electric car that is easy to change the direction as well as easier operation.

The rail electric car for working according to the present invention has a round jaw formed in the inner side of the driving wheel to accommodate various shapes of the rail, and can be sequentially driven along the rail by the operation of the driving motor, and the arbitrary position by the operation of the lifting means. When managing and harvesting the fruit at the height of and raise the worker to the height close to the fruit, the operation is much easier and the left and right moving means are additionally provided so that the direction can be easily changed and the convenience can be used. .

Work Rail Electric Car, Hydraulic Pump, Hydraulic Cylinder, Drive Wheel, Rotating Wheel

Description

A rail motor car for a work}

1 is a perspective view showing a rail for work railcar according to an embodiment of the present invention from the rear.

Figure 2 is an enlarged perspective view showing the vehicle body, axle, driving wheel, power supply and left and right moving means from the rear in accordance with a preferred embodiment of the present invention.

Figure 3 is a perspective view of the axle and the driving wheel according to an embodiment of the present invention.

"A" and "I" of Figure 4 is a rear view schematically showing the use state of the drive wheel.

Figure 5 is a perspective view of the lifting means according to an embodiment of the present invention from the rear.

"A" and "B" of Figure 6 is a schematic longitudinal cross-sectional view showing the operation of the lifting means according to an embodiment of the present invention.

"A" of Figure 7 is a perspective view showing a front left and right moving means according to an embodiment of the present invention, "I" is a schematic front view.

Figure 8 is a schematic front view showing the operation of the left and right moving means according to an embodiment of the present invention.

"A" and "B" of Figure 9 is a schematic side view showing the operation of the working rail electric car according to an embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

100: work rail electric car 110: body

120: axle 122: bearing

124: drive sprocket 130: drive wheel

132: front wheel 134: rear wheel

135: Thrill 136: Chain

140: drive motor 150: power supply

160: operation unit 170: lifting means

171: lower frame 171a: rail portion

172: first arm 173: second arm

174: lower operating member 175: first arm

176: second arm 177: upper operating member

178: upper frame 179: handle portion

180: lower support 182: hinge

184: upper support 186: hydraulic cylinder

188: hydraulic pump 190: left and right moving means

191 ring member 192 support shaft

192a: first support rod 192b: second support rod

193: front wheel 194: rear wheel

195: rotating wheels 196: rotating means

197a: first arm 197b: second arm

197c: Third arm 197d: Fourth arm

197e: 5th arm 197f: 6th arm

198: operating table 199: auxiliary arm

200,210: Rail B: Bolt rod

C: Caster P: Pin

S: Restoration Spring

The present invention relates to a working rail electric car, and more specifically, to accommodate a rail of various shapes to be installed on the floor, and can run sequentially along the rail, when managing and harvesting fruit trees at any position and height Since the worker is raised to a height close to the fruit tree, it is related to a working rail electric car that is easy to change the direction as well as easier operation.

In general, a rail motorized vehicle for general operation includes a vehicle body, an axle that is rotatably provided in front and rear surfaces of the vehicle body, a pair of front wheels and rear wheels connected to both ends of the axle, and driving the axle. It comprises a drive motor and an operation unit.

The conventional rail electric car configured as described above is installed on the rail installed in the house, and the operator manages or harvests the fruit while moving forward and backward through the operation unit after boarding the vehicle body.

Therefore, the conventional rail car is moved only forwards and backwards by the driving wheel, so there is no problem when the rail car is moved forward and backward along the rails. There was a problem.

In addition, the driving wheel has a disadvantage that can be moved along the limited rail made according to the limit of its shape. In addition, the worker had considerable difficulty in managing and harvesting fruit trees and the like at any height.

The present invention has been made in order to solve the above problems, accommodates a rail of various shapes that can be installed on the floor, can run sequentially along the rail, and manages and harvests fruit trees at any position and height When you raise the worker to the height close to the fruit tree, the operation is more easy, as well as to provide a working rail electric car easy to change direction.

In order to achieve the above object, the working rail electric car of the present invention is further provided with a two-stage folding type elevating means capable of elevating an operator to an arbitrary height on the upper surface of the vehicle body.

Preferably, the elevating means is a symmetrical installation on the upper left and right sides of the vehicle body, the lower frame provided with a rail inward; As the lower frame and the lower end are connected to each other, the first and second arms are connected to the X letter so as to be folded around the pin rod, and the first arm is rotatably installed on one end of the lower frame via a bolt rod. The second arm includes a lower operating member having a caster installed to move along the lower frame and coupled to the rail unit; An upper actuating member connected to the upper and lower ends of the lower actuating member, the upper actuating member configured to connect the first and second arms with an X-shape so as to be folded around the pin rod; An upper frame hinged to upper and lower surfaces of the first and second arms of the upper operating member, and an upper frame at which at least one operation unit capable of operating a rail train is installed on an upper surface of the upper and lower arms; A lower support connected between the first arm and the first arm of the lower operating member and provided with at least one hinge; An upper support connected between the second arm and the second arm of the upper operating member and provided with at least one hinge; A hydraulic cylinder having a front end coupled to the hinge of the upper support and a rear end coupled to the hinge of the lower support such that the upper and lower operating members are moved up and down by expansion and contraction; And a hydraulic pump mounted to the vehicle body to supply hydraulic pressure to the hydraulic cylinder and operated by an electric signal of a power supply unit.

Preferably, the front wheels and the rear wheels of the driving wheels provided at the front and rear surfaces of the vehicle body may have a ring jaw formed therein to accommodate the rails of various shapes.

In addition, the lower portion of the vehicle body is further provided with a left and right moving means for moving the vehicle body left and right.

Preferably, the left and right movement means ring members are respectively attached to the left and right lower surfaces of the vehicle body; A support shaft comprising first and second support rods respectively rotatably inserted into the ring member; A rotation wheel comprising a pair of front wheels and rear wheels attached to both ends of the support shaft so as to move the vehicle body in left and right directions; Rotating means is connected to one end of the first and second support rods of the support shaft, and configured to rotate the first and second support rods simultaneously by the folding operation; One end is attached to one end of the rotating means, the other end is configured to include a working table that is projected to the outside while being rotatably supported by the vehicle body to operate the rotating means by the operator's operation.

Preferably, the rotation means includes a first arm which is inclined at a predetermined angle in a downward direction from the inside of the first support rod of the support shaft; A second arm attached to the second support rod of the support shaft so as to be symmetrical with the first arm; A third arm attached vertically in an upward direction from the rear of the second arm; A fourth arm connecting the first arm and the third arm to be pivotally connected to the pin rod; A fifth arm having one end rotatably connected to the pin rod with the second arm rotated on the second arm and positioned at an upper portion of the first arm; And a sixth arm having one end connected to the other end of the fifth arm in a rotatable manner, and the other end rotatably connected to the one end of the operating table provided on the upper side of the fifth arm.

Hereinafter, with reference to the accompanying drawings will be described in more detail the working rail electric car of the present invention.

1 is a perspective view showing a working rail electric car in the rear according to an embodiment of the present invention.

Referring to the drawings, the work rail electric car 100 of the present invention is largely the vehicle body 110, the axle 120, the drive wheel 130, the drive motor 140, the power supply unit 150, the operation unit 160, W It comprises a lowering means 170 and the left and right moving means 190.

At this time, the vehicle body 110, the axle 120, the driving wheel 130, the drive motor 140, the power supply unit 150 and the operation unit 160 is provided in a rail train for a normal work, in the present invention these I will explain briefly.

First, the vehicle body 110 is a structure formed in a predetermined shape.

Next, the axle 120 is rotatably installed in the front of the vehicle body 110 via the bearing 122, the rear axle 120 is installed on the drive motor 140 and the chain ( A driving sprocket 124 to be connected to 136 is attached.

Next, the driving wheel 130 includes a front wheel 132 and a rear wheel 134 attached to both ends of the axle 120, respectively, the front wheel 132 and the rear wheel 134 is a rail of various shapes ( 200) (210) has a new shape so that it can be easily applied and moved, which will be described in more detail below.

Next, the drive motor 140 is attached to the vehicle body 110, is connected to the drive sprocket 124 of the axle 120 via the chain 136 to rotate the axle 120, this The drive motor 140 is a drive motor 140 that can rotate in the reverse direction as well as the forward direction.

Next, the power supply unit 150 is mounted inside the vehicle body 110 and is electrically connected to the driving motor 140 to supply power and at the same time with the hydraulic pump 188 of the lifting means 170 to be described later. Electrically connected to supply power, it is a conventional storage battery that can be charged.

Next, the operation unit 160 is used because it is commonly used, but not shown in detail is set on the front reverse button and the elevating button is installed on the upper frame 178 of the elevating means 170, the operator as a foot It is provided to manipulate the rotation operation of the drive motor 140 and the lifting operation of the lifting means 170.

In addition, the operation unit 160 may be attached to the handle portion 179 of the elevating means 170 may be provided so that the operator can operate by hand. Such an operation unit 160 is preferably installed at the same time on the upper frame 178 and the handle 179 of the elevating means 170 so as to operate at the convenience of the operator.

Next, the elevating means 170 is installed on the upper surface of the vehicle body 110 is provided to raise and lower the lifted to any height, this configuration and operation will be described in more detail below.

Next, the left and right moving means 190 is installed on the lower surface of the vehicle body 110 is provided so that the vehicle body 110 can be easily moved left and right, the rail electric car that is moved along the rails (200, 210) ( Due to the characteristics of 100, there is no separate steering means, so it is implemented to overcome the problems caused when moving the place. The configuration and operation of the left and right moving means 190 will be described in more detail below.

On the other hand, the working rail electric car 100 of the present invention is moved along the rails 200 and 210, it should be appreciated that a separate steering device is not necessary.

Figure 2 is an enlarged perspective view showing the vehicle body, axle, driving wheel, power supply and left and right moving means from the rear in accordance with a preferred embodiment of the present invention.

Referring to the drawings, the vehicle body 110 has a predetermined shape, the cover 112 covering the upper surface of the vehicle body 110 is rear so as not to interfere with the operation of the lower support 180 of the elevating means 170 to be described later. It can be seen that some do not cover. In addition, the axle 120 is coupled to the front of the lower surface of the vehicle body 110 so as to be rotatable through the bearing 122, and a pair of front wheels 132 and rear wheels 134 are connected to both ends of the axle 120. Drive wheels 130 composed of are attached to each.

In addition, a driving sprocket 124 is attached to the axle 120 to which the rear wheel 134 is attached, and is connected to the driving motor 140 and the chain 136, and the driving motor 140 is inside the vehicle body 110. It is electrically connected to the power supply unit 150 mounted on the power supply unit 150 is also electrically connected to the hydraulic pump 188 of the lifting means 170 attached to one side.

In addition, the lower surface of the vehicle body 110 is provided with a left and right moving means 190 to be described later, the left and right moving means 190 will be described in detail below.

On the other hand, when the drive motor 140 is rotated by the signal of the operation unit 160 in the above configuration, the axle 120 and the rear wheel 134 connected via the chain 136 is forced to rotate, thereby the vehicle body ( 110 is advanced. Of course, if the drive motor 140 is rotated in reverse, it is natural that the vehicle body 110 will be reversed.

3 is a perspective view of the axle and the driving wheel according to an embodiment of the present invention, "a" and "b" of Figure 4 is a rear view schematically showing the state of use of the driving wheel.

First, referring to FIG. 3, as described above, a pair of front wheels 132 and rear wheels are provided at both ends of the axle 120 rotatably installed on the front rear surface of the vehicle body 110 via a bearing 122. 134 are attached to each other, and a driving sprocket 124 connected to the driving motor 140 and the chain 136 is attached to the axle 120 to which the rear wheel 134 is attached.

Here, it can be seen that the front wheel 132 and the rear wheel 134 are formed with a rounded projection 135 protruding inward. Of course, the round jaw 135 is formed smaller than the diameter of the front wheel 132 and the rear wheel 134.

Now, referring to “A” of FIG. 4, when the rail 200 having a substantially c-shaped cross section is installed, the rear wheels 132 and the front wheels 134 of the present invention have the same rails as the conventional rear wheels and the front wheels. Will be inserted and moved.

Subsequently, referring to "I", when the pipe rail 210 is installed instead of the U-shaped rail 200 in cross section, conventional rear wheels and front wheels cannot accommodate this and move along the rail 210. It would be impossible in itself. However, in the present invention, since the round jaw 135 is formed inside the rear wheel 134 and the front wheel 132, the round jaw 135 is placed on the upper surface of the pipe rail 210, and the outside of the rear wheel 134 and the front wheel 132 is formed. ) To support and move safely.

As such, since the round jaw 135 is formed inside the rear wheel 134 and the front wheel 132 of the present invention, the rails 200 and 210 having various shapes can be accommodated, and thus the use range is widened. .

5 is a perspective view showing the lifting means in accordance with a preferred embodiment of the present invention from the rear, "A" and "I" of Figure 6 shows the operation of the lifting means according to a preferred embodiment of the present invention. One schematic longitudinal section view.

First, referring to Figure 5, the lifting means 170 of the present invention is largely lower frame 171, lower operating member 174, the upper operating member 177, the upper frame 178, lower support 180 ), An upper support 184, a hydraulic cylinder 186 and a hydraulic pump 188 is configured.

First, the lower frame 171 is installed symmetrically on the left and right sides of the upper surface of the vehicle body 110, and has a substantially c-shape in cross section provided with a rail portion 171a inward.

Next, the lower operation member 174 is connected to the lower frame 171 and the lower end, respectively, the first, second arm 172, 173 to be folded around the pin bar (P) configuration consisting of X The first arm 172 is rotatably installed at one end of the lower frame 171 through a bolt bar B, and the second arm 173 is disposed at the lower frame 171. The caster C is installed to move along the rail 171a and is coupled to the rail 171a.

Next, the upper operating member 177 is connected to be folded to the upper and lower ends of the lower operating member 174 via a pin bar (P), the first, second arms 175, 176 as X letter Connected but pin pin (P) is configured to be foldable to the axis.

Next, the upper frame 178 is coupled to the upper and lower surfaces of the first and second arms 175 and 176 of the upper operating member 177 by a hinge or pin rod (P), the operator is on the upper surface A handle portion 179 that can be grabbed after riding is installed, and at least one manipulation unit 160 that can operate the rail train 100 is installed.

Next, the lower support 180 is installed between the first arm 172 and the first arm 172 of the lower operation member 174, at least one hinge 182 is provided.

Next, the upper support 184 is connected between the second arm 176 and the second arm 176 of the upper operating member 177, which is also provided with at least one hinge 182.

Next, the hydraulic cylinder 186 is the front end is coupled to the hinge 182 of the upper support 184, the rear end is coupled to the hinge 182 of the lower support 180 by the upper and lower operating members (174) (177) to raise and lower operation.

Next, the hydraulic pump 188 is mounted to the vehicle body to supply the hydraulic pressure to the hydraulic cylinder 186, and is operated by the electrical signal of the power supply unit 150.

Now, referring to “a” of FIG. 6, the elevating means 170 is installed on the upper portion of the vehicle body 110, which is schematically illustrated, and maintains the lowered state. At this time, the lower support 180 of the elevating means 170 protrudes to the lower portion of the vehicle body 110, but as described above, the cover 112 that covers the upper surface of the vehicle body 110 does not cover a part of the rear support. It is too obvious that the 180 does not interfere with the bottom of the vehicle body 110.

Now, referring to "I", as the hydraulic pump 188 of the elevating means 170 extends the hydraulic cylinder 186 by the signal of the operation unit 160 provided on the upper frame 178. The second arm 173 of the lower actuating member 174 starts to move along the rail portion 171a of the lower frame 171, and the first arm 172 of the lower actuating member 174 is configured to be folded. The first arm 175 and the second arm 176 of the second arm 173 and the upper operation member 177 connected to be folded therein are raised to the upper frame 178 while standing up gradually.

At this time, a lower caster (C) is mounted on the lower end of the second arm (173) of the lower operation member 174 and moves along the rail portion (171a) of the lower frame (171), so that the lower operation member (174) and the upper operation. The standing of the member 177 is made very smoothly.

In addition, the operation of folding the lower operating member 174 and the upper operating member 177, which are standing in response to the signal of the operation unit 160, is performed in the reverse order of the standing operation, and the upper portion is caused by the contraction of the hydraulic cylinder 186. As the second arm 176 of the operating member 177 is pulled downward, the lower portion of the lower portion of the lower arm as the caster C attached to the lower end of the first arm 172 of the lower operating member 174 returns to its original position. The operating member 174 and the upper operating member 177 are slowly folded.

Therefore, the lifting means 170 of the present invention is the first arm 172, the second arm 173, the lower operating member 174 and the first arm 175, the second arm 176 made of a cross shape The upper operating member 177 connected to the lower operating member 174 is formed in a two-fold folding type, and thus the upper frame 178 can be raised and lowered by the cross shape.

"A" in Figure 7 is a perspective view showing the left and right moving means according to a preferred embodiment of the present invention from the front, "I" is a schematic front view, Figure 8 is a left and right moving means according to a preferred embodiment of the present invention Schematic front view showing the operation of.

First, referring to "a" and "b" of Figure 7, the left and right moving means 190 of the present invention is largely the ring member 191, the support shaft 192, the rotating wheel 195, the rotating means (196) ) And the operating table 198.

First, the ring members 191 are attached to the left and right lower surfaces of the vehicle body 110 in the longitudinal direction, respectively.

Next, the support shaft 192 is composed of first and second support rods 192a and 192b rotatably inserted into the ring member 191.

Next, the pivot wheel 195 includes a pair of front wheels 193 and rear wheels 194 attached to both ends of the support shaft 192 such that the vehicle body 110 moves in left and right directions.

Next, the rotation means 196 is connected to one end of the first and second support rods 192a and 192b of the support shaft 192, and is first and second support rods 192a and 192b by folding. It is configured to rotate at the same time. The rotation means 196 may include a first arm 197a attached to the inner side of the first support rod 192a of the support shaft 192 inclined at a predetermined angle downward, and the support shaft 192 of the support shaft 192. A second arm 197b attached to a second support rod 192b symmetrically with the first arm 197a, a third arm 197c attached perpendicularly to a rear upper surface of the second arm 197b, and The fourth arm 197d connects the first arm 197a and the third arm 197c to be pivotally connected to the pin rod P, and one end of the pin rod P is connected to the second arm 197b. Is connected to the axis rotatably but the other end is provided with the pin rod (P) on one end to the other end of the fifth arm (197e) and the fifth arm (197e) is provided to be located above the first support rod (192a) Is rotatably connected, the other end is configured to include a sixth arm (197f) rotatably connected to the pin bar (P) on one side of the operating table (198) provided in the upper.

Next, one end of the operating table 198 is attached to the end of the sixth arm (197f) of the rotation means 196, the other end is projected to the outside while being rotatably supported by the vehicle body by the operator's operation The rotation means 196 is activated.

In addition, an auxiliary arm 199 is additionally provided at one side of the fourth arm 197d, and a restoring spring S connected to the opposite vehicle body 110 is fastened to the auxiliary arm 199.

Here, referring to FIG. 8, it can be seen that the rotation wheel 195 is unfolded, which will be described in detail with respect to the operation of unfolding the rotation wheel 195 in the “ga” state of FIG. 7.

First, when the operating table 198 rotatably supported by the vehicle body 110 is rotated to the arrow direction, that is, to the left, the sixth arm 197f attached to one end of the operating table 198 is rotated to the left. The fifth arm 197e foldably connected to the sixth arm 197f also rotates to the left side and rotates the second arm 197b to the left side. Subsequently, the second support rod 192b, which is rotatably provided to the vehicle body 110 through the ring member 191 by the left pivot of the second arm 197b, is also rotated in the left direction, and is now attached to the inner side. The rotating wheel 195 is unfolded.

The fourth arm 197d is foldably connected to the third arm 197c and the third arm 197c attached to the upper portion of the second support rod 192b at the same time as the second support rod 192b rotates. One end is attached to the fourth arm 197d, and the other end of the first wheel 197a and the first support rod 192a attached to the first support rod 192a are rotated to the right side, respectively, while being rotated to the inside. (195).

At this time, as the rotation wheel 195 is unfolded, the driving wheel 130 is slightly raised from the ground, and the vehicle body 110 is moved to the left and right while the rotation wheel 195 is supported.

The arm 197a, 197b, 197c, 197d, 197e, and 197f rotate the operating table 198 in the right direction. In operation, the pivot wheel 195 is folded into the vehicle body. At this time, the fourth arm 197d is more easily folded by the restoring spring S connected to the auxiliary arm 199.

"A" and "B" of Figure 9 is a schematic side view showing the operation of the working rail electric car according to an embodiment of the present invention.

First, referring to "a", the drive wheel 130 of the work rail electric car 100 of the present invention is placed in the pipe rail 210, the operator to the upper frame 178 of the elevating means 170 I'm boarding. In this state, when the operator presses the forward button of the operation unit 160 provided on the upper frame 178, the drive motor 140 is rotated to the right by this signal, and the axle 120 and the driving wheel 130 connected thereto. ) Moves the worker to the desired position.

At this time, the driving wheel 130 has an annulus 135 formed on the inside thereof, so that the driving wheel 130 may be easily installed and used on the pipe rail 210.

On the other hand, when the operator presses the reverse button of the operation unit 160, the drive motor 140 will be reversed to reverse the vehicle body (110).

Subsequently, referring to "I", this time, when the worker presses the ascending button of the operation unit 160 in order to ascend to an arbitrary position, the expansion and contraction of the hydraulic cylinder 186 of the elevating means 170 is performed. As a result, the lower actuating member 174 and the upper actuating member 177 stand to rise to the desired position by the operator.

On the contrary, when the operator presses the down button of the operation unit 160, the lower operation member 174 and the upper operation unit 177, which were raised by the contraction of the hydraulic cylinder 186, are folded, thereby lowering the worker.

And, although not shown here, when the operator wants to move the electric car 100 forward and backward along the rail 210, it is natural that the operator will move more easily through the right and left moving means 190.

Therefore, the rail rail car 100 of the present invention accommodates the rails 200 and 210 having various shapes because the round jaw 135 is formed inside the driving wheel 130, and by the operation of the driving motor 140. It is possible to run sequentially along the rails 200 and 210, and by operating the elevating means 170 to manage and harvest the fruit at any position and height, so as to raise the worker to a height close to the fruit when harvesting Of course, since the left and right moving means 190 is further provided as well as the ease of use, it is easy to change the direction.

The foregoing has outlined rather broadly the features and technical advantages of the subject innovation in order to better understand the utility model claims of the subject matter described below. Additional features and advantages constituting the utility model claims of the present invention will be described below. It should be recognized by those skilled in the art that the conception and specific embodiment of the presently disclosed subject matter can be used immediately as a basis for designing or modifying other structures for carrying out similar purposes as the present invention.

In addition, such a modification or altered equivalent structure by those skilled in the art as a basis for modifying or designing the structure and concept of the invention disclosed in the present invention to another structure for carrying out the same purpose of the present invention is practical. Various changes, substitutions, and alterations are possible without departing from the spirit or scope of the invention as described in the scope of the new patent.

As described above, since the working rail electric car of the present invention is formed with a round jaw inside the driving wheel, it accommodates rails of various shapes, and can be sequentially driven along the rail by the operation of the driving motor. It manages the fruit at any position and height by the operation and raises the worker to the height close to the fruit when harvesting. The effect can be aimed at.

Claims (6)

A drive wheel comprising a vehicle body, axles provided in a front and rear view on the lower surface of the vehicle body, a pair of front wheels and rear wheels connected to both ends of the axle, a drive motor for driving the axle, and a drive motor. In a typical work rail electric car comprising a power supply unit and an operation unit for supplying power and moved along a rail, The upper surface of the vehicle body work rail electric car, characterized in that the two-stage foldable lifting means can be further installed to raise and lower the worker to any height. The method of claim 1, The lifting means is A lower frame provided symmetrically on the upper left and right sides of the vehicle body and having a rail part inward; As the lower frame and the lower end are connected to each other, the first and second arms are connected to the X letter so as to be folded around the pin rod, and the first arm is rotatably installed on one end of the lower frame via a bolt rod. The second arm includes a lower operating member having a caster installed to move along the lower frame and coupled to the rail unit; An upper actuating member connected to the upper and lower ends of the lower actuating member, the upper actuating member configured to connect the first and second arms with an X-shape so as to be folded around the pin rod; An upper frame hinged to upper and lower surfaces of the first and second arms of the upper operating member, and an upper frame at which at least one operation unit capable of operating a rail train is installed on an upper surface of the upper and lower arms; A lower support connected between the first arm and the first arm of the lower operating member and provided with at least one hinge; An upper support connected between the second arm and the second arm of the upper operating member and provided with at least one hinge; A hydraulic cylinder having a front end coupled to the hinge of the upper support and a rear end coupled to the hinge of the lower support such that the upper and lower operating members are moved up and down by expansion and contraction; And Rail mounted to the hydraulic cylinder to supply the hydraulic pressure to the hydraulic cylinder, characterized in that it comprises a hydraulic pump operated by an electric signal of the power supply unit. The method of claim 1, The front wheels and the rear wheels of the driving wheels provided at the front and rear surfaces of the vehicle body may have a round jaw formed therein to accommodate the rails having various shapes. The method of claim 1, The lower portion of the vehicle body rail electric car for work further characterized in that the left and right moving means for moving the vehicle body left and right are further provided. The method of claim 4, wherein The left and right movement means Ring members respectively attached to left and right lower surfaces of the vehicle body; A support shaft comprising first and second support rods respectively rotatably inserted into the ring member; A rotation wheel comprising a pair of front wheels and rear wheels attached to both ends of the support shaft so as to move the vehicle body in left and right directions; Rotating means is connected to one end of the first and second support rods of the support shaft, and configured to rotate the first and second support rods simultaneously by the folding operation; And One end is attached to one end of the rotation means, the other end is rotatably supported by the vehicle body protrudes to the outside and comprises an operating table for operating the rotation means by the operator's operation Work rail electric car. The method of claim 5, The rotation means A first arm attached inclined at a predetermined angle in a downward direction from the inside of the first support rod of the support shaft; A second arm attached to the second support rod of the support shaft so as to be symmetrical with the first arm; A third arm attached vertically to an upper direction of the second arm rear upper surface; A fourth arm connecting the first arm and the third arm to be pivotally connected to the pin rod; A fifth arm having one end rotatably connected to the pin rod with the second arm rotated on the second arm and positioned at an upper portion of the first arm; And One end is pivotally connected to the other end of the fifth arm with a shaft, and the other end includes a sixth arm rotatably connected to the shaft with a pin rod on one side of the operating table provided on the upper end. Work rail electric car.

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