KR200247811Y1 - An electric motorcar for a wagon traction - Google Patents

Abstract

The present invention is to make the operation at the time of towing movement very convenient and smooth in the electric vehicle used to tow the truck for transporting goods in the industrial field.

As a means, the elevating guides 10 and 10 'are formed on both sides of the rear end of the main body 2, and the main body 1 and the two connecting links 11 and 11' can be moved up and down. The lower connection link 11 'is provided with a support wheel 12 in contact with the ground and the other end is configured to be inclined to the upper side, and then install a side wheel rotatable side 15, the lift 20 in the center of the lifting guide While installing the guide rollers 21 at both ends to be inserted into the lifting guide to lift, and to install the cylinder 23 between the upper plate 22 of the lift 20 and the center lower end of the main body (2) Actuating the lift 20, the two hooks 24 installed in front of the lift 20 to be able to hang the frame 31 constituting the trolley 30 ' And a roller 28 at the tip.

Therefore, as described above, the electric vehicle of the present invention has a very convenient and quick effect of traction operation of a truck, which is one of important tasks in various industrial sites, such as a change of direction for movement and a low force. .

Description

An electric motorcar for a wagon traction}

The present invention relates to an electric vehicle used to tow a truck for transporting goods in various industrial sites, and more specifically, to allow the operator to drive the truck by driving force of the motor while slightly lifting the front part of the truck. In the electric vehicle, the truck is to make the operation at the time of traction movement very convenient and smooth.

As is well known, in order to load goods such as parts or products in various industrial sites, four wheels are generally configured on the bottom of the wheel and a loading space is configured on the upper part to move them to a necessary place. Since there is no power means that can be used, it is made to move by using a towing electric vehicle when a lot of goods are loaded.

As shown in FIG. 8, a general electric vehicle 101 having such a function includes a driving stage 103 configured to allow an operator to hold the hand by hand and to operate the electric vehicle 101, using the driving stage 103. It is configured to function forward and backward, direction change and lift drive.

The driving shaft 103 is connected to the driving shaft 103, and one driving wheel 104 driven by the motor 105 is connected to the lower end of the driving shaft 103. The motor 105 is usually driven by a storage battery.

In front of the electric vehicle 101, the frame 107 protrudes and two support wheels 112 are installed at the ends thereof. Between the support wheels 112, a tow bar 108 for elevating by hydraulic pressure is provided. It is configured to lift the cart by lifting the tow bar 108 so that the tow bar 108 is inserted into the tow hole formed in the front part of the cart, and move in this state.

However, such a problem of the conventional electric vehicle is that it is very difficult to change the direction when reversing (pushing the trolley).

That is, when the worker moves forward while holding the driving wheel 103 and moves forward, there is no big problem because the truck follows the direction of driving to the driving wheel 103, but when the worker moves while pushing the electric vehicle 101, When the wheel 104 is switched to change the direction, the cart is connected by the tow bar 108 so that the direction of the cart is displaced in the opposite direction to which the electric vehicle 101 moves.

This action is not difficult to drive the Churrera in the forward direction when viewed from the car, but when moving backwards, the rear end moves in the opposite direction to a normal vehicle.

In addition, the conventional electric vehicle is driven in a state in which the support wheel 112 is in contact with the ground between the driving wheel 104 and the rear wheel of the trolley during towing, so the frictional resistance with the ground at the time of changing the direction is changed. It is to be a factor that makes it difficult, because one driving wheel 104 is configured in the center, there is a risk that the balance and the electric vehicle 101 is overturned when the direction is suddenly changed due to the lack of stability when changing the direction.

Therefore, there is a serious problem that a conventional electric vehicle takes a long time to tow a truck and a safety accident occurs due to difficulty in driving.

The present invention has been devised in view of the above-mentioned problems, and when the truck is lifted by using the electric vehicle, the support wheels are also simultaneously lifted and the configuration connected to the truck is also improved so that the electric car and the truck are unified. It is an object of the present invention to provide an electric vehicle that is very easy to drive.

1 is a side view showing the overall configuration of the present invention

Figure 2 is an operating state of Figure 1

3 is a plan view cross-sectional view taken along the line A-A of FIG.

4 is an enlarged cross-sectional view taken along the line B-B of FIG.

5 is a state of use of the present invention

Figure 6 is a partial perspective view showing another embodiment of the hanger of the present invention

7 is a state diagram of the operation of FIG.

Figure 8 is a side view showing the configuration of a conventional electric vehicle

*** Description of the symbols for the main parts of the drawings ***

1: electric car 2: body

3: between driving 4: driving wheel

5: motor 6: rotating shaft

10, 10 ': Lift guide 11, 11': Link

12: support wheel 13: tension spring

14: adjusting bolt 15: auxiliary wheel

20: lift 21: guide roller

22: top plate 23: cylinder

24: hanger 25: fixing bracket

26: hole 27: bolt

As can be seen in FIG. 1 of the present invention, the electric vehicle 1 has a driving device such as a driving wheel 3, a driving wheel 4 connected thereto, and a motor 5 for power. That is, the rotating shaft 6 is formed on one side main body 2 of the electric vehicle 1 and the driving wheel 4 which rolls with the driving force of the motor 5 is formed at the lower end thereof, and the rotating shaft 6 protrudes upward. The upper part of the operation was connected to the driving section (3) in front of the worker was configured to drive by hand.

In particular, the electric vehicle 1 of the present invention constitutes elevating guides 10 and 10 'on both sides of the rear end of the main body 2, and the elevating guides 10 and 10' have two side ends and two upper and lower sides of the main body 1. Connecting link (11) (11 ') of each of the connection to be able to move up and down, and the support wheel 12 is installed on the end of the side of the bogie 30 of the lower link (11') is installed to touch the ground And the other end of the connecting link (11 ') is configured to be inclined to the upper side and then installed a side wheel rotatable sideways to the end so that the support wheel 12 is lifted up so that the auxiliary wheel 15 touches the ground.

The connecting link 11 of the upper end is provided with a tension spring 13 in the downward direction, but the lower end of the tension spring 13 is fixed to the body (2).

A lift 20 is installed at the center of the lifting guides 10 and 10 ', and guide rollers 21 are installed at both ends of the lift 20 so that the guide rollers 21 are provided at the lifting guides 10 and 10'. The lifter 20 is inserted and lifted, and a cylinder 23 is installed between the inner side of the upper plate 22 of the lift 20 and the lower center of the main body 2 so that the lift 20 is lifted by the action of the cylinder 23.

Two protruding hooks 24 are installed at the front of the lift 20, and the hooks 24 are generally arranged to allow the frame 31 constituting the trolley 30 to be hooked up from below. It is configured in the 'shape, the roller 28 is installed at the tip so that it is easily caught on the frame 31 when connected to the trolley 30, and the mounting bracket 24 in the installation configuration of the fixing bracket to the lift 20 After forming the hook 25, the hook 24 is formed with several holes 26 to fasten the bolts 27 to the holes 26 at the required positions, thereby engaging the hook 24 according to the size of the trolley 30. ) Height adjustment is possible.

As shown in FIG. 4, by installing the adjusting bolts 14 at the upper end of the elevating guides 10 and 10 ′, the elevating guides 10 and 10 ′ are adjusted by adjusting the starting point of the elevating guides 10 and 10 ′. The height of rise) can be adjusted.

And hanger 24 of the present invention may be provided with a configuration that can achieve a more secure hook when the frame 31 'of the trolley 30 of the' c 'type, as can be seen in Figures 6 and 7 Auxiliary hook mechanism 50 is installed on opposite sides of the hooks 24 on both sides, but the support rod 55 is installed to allow the auxiliary hook mechanism 50 to be rotatable, and an inclined action surface 51 is formed at the rear end. The hook 52 is configured at the tip.

In this case, as shown in FIG. 7, when the hook hole 24 rises under the frame 31 having the 'c' shape, the auxiliary surface hangs while the working surface 51 comes into contact with the bottom of the frame 31 '. The sphere 50 is turned over, and thus the frame 31 'can be securely fixed while the hook 52 is inserted into the open portion of the frame 31'.

In the figure, reference numeral 32 denotes a bogie wheel, 7 and 7 ', an operation lever and an operation button, 8 a battery, 9 a link connecting pin, 40 a hydraulic device, and 53 a stopper.

Looking at the operation of the subject innovation in this configuration as follows.

When the electric vehicle 1 is not used, the lift 20 is in a descending state, and the lifting guides 10 and 10 'are also lowered so that the support wheel 12 is in contact with the ground. 1) is driven by a drive wheel (4) and two support wheels (4).

In this state, in order to tow the trolley 30, the electric vehicle 1 is driven so that the hook 24 of the tip portion is positioned under the front frame 31 of the trolley 30, and then lifts.

When the lift operation is performed by first operating the cylinder 23 by using the operating lever 7 of the driving section 3, when the cylinder 23 acts, the lift 30 rises and thus the hooking tool 24 is to lift the front frame 31 of the trolley (30). Therefore, the trolley 30 is in a state in which only two trolley wheels 32 at the rear touch the ground.

In the above operation process, when the frame 31 'of the trolley 30 is of the' c 'type, the hook 52 of the auxiliary hook tool 50 according to the embodiment of FIGS. 6 and 7 moves the frame 31'. Since the grip more firmly, the trolley 30 can be prevented from being separated from the electric vehicle during the movement.

If the lift 20 is further operated, the guide roller 21 of the lift 20 comes into contact with the top of the lift guides 10 and 10 ', and thereafter the lift guides 10 and 10' are lifted ( 20) lifted up by Therefore, as the support wheel 12 is spaced apart from the ground, the auxiliary wheel 15 is in contact with the ground.

In this process, it is possible to adjust the adjustment bolt (14), by lowering the adjustment bolt 14 is the time to start the lifting guide (10, 10 ') by the lift 20, the lifting guide, (10) (10 ') the rising height is adjusted. Lowering the adjusting bolt 14 has the opposite effect.

In the above state, since the link links 11 and 11 'are in a state of being folded upward, the tension spring 13 is in an extended state.

With this action, the vehicle 30 is ready to move and the electric vehicle 1 is driven to start the movement of the truck 30.

That is, when the operator drives in the direction of hitting backwards while holding the driving section 3 (forward movement), the operator moves according to the trolley 30 hung by the hooks 24 of the lift 20. The direction can be adjusted by rotating the liver 3.

When the operator drives to move while pushing in the direction following the electric vehicle 1 (reverse movement), the electric vehicle 1 moves while pushing the trolley 30, and in this process, the hooks 24 of the electric vehicle 1 are moved. Since the two are in the state of holding the trolley (30), as if the operator flips the driving wheel (3) to the right, such as reversing a general car, the rear end of the trolley (30) turns to the right and the worker drives the driving wheel (3 Fold to the left to move the bogie in the opposite direction.

According to the present invention, when the vehicle 3 is moved by the electric vehicle 1, no wheels touch the ground between the driving wheel 4 of the electric vehicle 1 and the trolley wheel 32 at the rear end of the trolley 30. There is little resistance in the city, and the two auxiliary wheels 15 are rolled further ahead of the driving wheel 4, thereby increasing stability during the change of direction. Therefore, the load or rolling friction is minimized, so the change of direction is very easy and the force is less.

After the movement of the bogie 30 is completed, if the cylinder 23 is operated in the opposite direction, the lifting guides 10 and 10 'are first lowered so that the support wheels 12 installed on the linking links 11' touch the ground. At this time, the tension spring 13 is to help the restoring of the connecting link (11) (11 ') and the elevating guide (10) (10'), and the lift (20) is lowered to the front wheel of the bogie (30) Since the 32 reaches the ground and the hook 24 is spaced apart from the frame 31 of the trolley 30, the electric vehicle 1 can be moved to another required place.

Depending on the size or type of the trolley 30, the position of the frame 31 may be higher or lower. In this case, by adjusting the installation position of the hook 24, the frame 31 of the trolley 30 may be adjusted. May replace the hook 24 with another type.

The present invention as described above is configured to lift the front of the trolley 30 as well as lift the support wheels of the electric vehicle 1 when the lift 20 is actuated to move the trolley 1. Since the connection between the 30 and the electric vehicle 1 is made of two hooks 24, the traction operation is one of the important tasks in various industrial sites, such as a very easy change of direction for movement and less power. It is a very useful design that can be done very conveniently and quickly, thereby improving productivity and reducing manpower.

Claims (3)

In the main body of one side of the electric vehicle, the rotating shaft is configured, the lower end of the driving wheel is rolled by the driving force of the motor, the upper end of the rotating shaft protruding upwards, The lifting guides 10 and 10 'are formed on both rear ends of the main body 2, and the two ends of the main body 1 and the two connecting links 11 and 11' are connected to each other so that they can move up and down. A tension spring 13 is installed between the upper link link 11 and the lower body 2, Install the support wheel 12 at the end of the lower link link (11 ') connected to the trolley 30 is connected to the ground, the other end of the link (11') is configured to be inclined to the top side laterally to the end When the support wheel 12 is lifted up by installing the rotatable auxiliary wheel 15, the auxiliary wheel 15 touches the ground, A lift 20 is installed at the center of the lifting guides 10 and 10 ', and guide rollers 21 are installed at both ends of the lift 20 to be inserted into the lifting guides 10 and 10' so as to lift and lower. A cylinder 23 is installed between the inside of the upper plate 22 of the lift 20 and the lower center of the main body 2 so that the lift 20 can be lifted and lowered by the action of the cylinder 23. Two protruding hooks 24 are installed at the front of the lift 20, and the hooks 24 are generally arranged to allow the frame 31 constituting the trolley 30 to be hooked up from below. It is configured in the 'shape, the trolley towing electric vehicle, characterized in that the roller 28 is installed at the tip to be easily caught on the frame 31 when connected to the trolley 30. The method of claim 1, The hook 24 is formed by the fixing bracket 25 in the lift 20, and then formed several holes 26 in the hook 24 to fasten the bolt 27 to the hole 26 in the required position to engage By doing so, the height adjustment and exchange of the hook 24 according to the size of the trolley 30 is possible, and the adjustment guide 14 is installed on the upper end of the lifting guides 10 and 10 'to raise and lower the guide 10 ( A trolley towing electric vehicle, characterized in that it is possible to adjust the elevation height of 10 '). The method of claim 1, In order to firmly connect the frame 31 'of the trolley 30 to the' c 'type, the auxiliary hooks are provided on opposite sides of both hooks 24 instead of the rollers 28 to the hooks 24. 50) is installed, but the supporting rod (55) is installed so that the auxiliary hook mechanism (50) is rotatable, the rear end side constitutes the inclined action surface 51 and the end portion comprises a hook 52 Towing electric car.