KR100920717B1 - Vertical transferring device for baggage - Google Patents

Abstract

The present invention discloses a load lifting device that can be lifted and transported safely and easily in a place that handles various loads, including a construction site or a loading dock, while also simplifying its structure.

The present invention is provided with a pair of lifting and lowering operation means that is installed in the profile having a locking portion for each lifting section or installed on an external structure to receive power from the lifting driving means. These elevating operation means may elevate the load loaded on the elevating operation means while elevating alternately on the profile, and one of the elevating operation means is fixed to an external structure and the other elevating operation means elevates the profile. It is also possible to elevate the load loaded on. The lifting operation means has a structure that is raised and lowered without interference of the catching portion to hang over the catching portion at a predetermined height or to support the bottom of the catching portion.

The present invention can safely and easily lift the various loads to the position of the desired height, the structure is very simplified compared to the existing lifting device has a very advantageous advantage in the practical application in the field.

Luggage, hoist, profile, brace, turn

Description

Baggage lifting device {Vertical transferring device for baggage}

The present invention relates to a lifting device, and more particularly, to a lifting device for lifting and transporting a load to a desired position.

The lifting device is used to transport temporary goods or construction materials to a desired height position at a construction site, or to transport heavy loads at a loading dock.

In connection with the lifting device, the applicant of the present invention has proposed Korean Registered Utility Model No. 423750 (name: temporary lifting device), which uses a crane by a lifting material for elevating vertical beams step by step. It is to be able to perform the lifting work of the hypothesis without having to.

The development of the technology to improve the existing lifting device is continued, and a cargo lifting device that can be lifted and transported cargo safely and easily is made of a simpler structure is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional circumstances, and an object thereof is to provide a safe and easy lifting and transporting of a load at a place dealing with various loads including a construction site and a loading dock, while also simplifying the structure. It is to provide a lift device.

The present invention for achieving the above object, the profile having a height of more than the lifting position of the load provided with a locking portion for each lifting section, and the frame and the frame is installed so as to rotate relative to the locking portion on one end of the locking portion It consists of a pair of upper and lower having a latch that can be engaged, any one of which is connected to the load and the lifting and lowering the load alternately by lifting the profile as the lifting shaft in the state installed on the profile without interference of the locking portion during lifting A lifting device comprising a lifting operation means for lifting and lowering while being engaged and stopped at a predetermined height, and a lifting driving means coupled between the upper and lower lifting operation means to provide a lifting driving force to the lifting operation means.

In addition, the present invention, the profile having a plurality of engaging portions in the vertical direction along the longitudinal direction, and the frame and the latch is provided so that one end can be engaged with the engaging portion while being installed to rotate relative to the engaging portion on the frame; Lifting operation means made of a pair of up and down, one of which is fixed to the external structure while the other one is lifted without interference of the locking portion and then stops at a predetermined height to lift the profile while supporting the lower portion of the locking portion, and Disclosed is a load lifting device comprising a lift driving means coupled to the lifting operation means of the upper and lower lifting means for providing a lift driving force to the lifting operation means for lifting.

In the load lifting device as described above, the profile is made of an H-beam, the locking portion may be disclosed in the configuration formed on one side flange of the H-beam.

In addition, the frame of the elevating operation means is composed of an upper frame and a lower frame and a support frame connecting them, the latch can be disclosed as a configuration provided with a rotation support pin on the support frame. In particular, the support frame may be provided with a resilience providing means for rotating the latch relative to the profile. Furthermore, the elastic providing means includes a latch restraint member rotatably coupled to a rear end of the latch and restrains the restraint, a rotation engaging member rotatably coupling the restraint restraint member to the support frame, and the restraint restraint member. And an elastic member installed between the rotary coupling member and the elastic member for providing the elastic force to push the latch to the profile side. In addition, the rotary support pin may be provided with a lever for rotating the rotary support pin and the latch by a desired angle. In addition, upper and lower through holes are respectively provided in the upper frame and the lower frame of the lifting operation means, and left and right through holes are respectively provided in the upper and lower portions of the support frame, and the end of the lifting driving means is inserted into the upper and lower through holes. The coupling pin is inserted into the left and right through holes in a state where the lifting operation means and the lifting driving means may be coupled.

On the other hand, in the load lifting device as described above, the engaging portion of the locking portion and the locking portion may be formed at a right angle.

And, the lifting operation means may be provided with a guide arm to partially surround the profile.

In addition, the lifting drive means may be started by a hydraulic actuator.

The present invention configured as described above can safely and easily elevate various loads to a desired position at a construction site or an unloading station, and there is an effect of smoothing the work progress. In particular, the present invention can be usefully applied in the actual field because the mechanical configuration is much simpler than the conventional lifting device, and the operation is convenient.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment according to the present invention. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It doesn't happen.

1 is a perspective view showing an embodiment of the present invention installed on a profile, Figure 2 is a plan view of a lifting device according to the present invention. As shown in Figure 1 and 2, the load lifting device of the present invention is provided with a profile 100, the lifting operation means (200,300) and the lifting drive means (400).

The profile 100 is a structural member made of a height higher than or equal to a predetermined lift position so that a load (not shown) to be lifted can be lifted to a desired height. In this embodiment, the profile 100 is disclosed as an H-beam. In particular, the locking portions 140 are provided on one of the flanges 120 and 130 of the web 110 constituting the H-beam by means of welding or the like, and each locking portion 140 is It forms a predetermined interval for each predetermined section in which the load is lifted. The locking portion 140 is engaged with the latches 210 and 310 of the lifting operation means 200 and 300 which will be described later. For example, the locking portion 140 has a top and bottom portions formed at right angles, and corresponding parts of the locking portions 210 and 310 are also formed at right angles. The profile 100 configured as described above is installed in a structure (eg, an outer wall of a structure in which a construction work temporary installation platform is installed) at a place where lifting and lowering of a load is required.

Lifting operation means (200,300) is composed of a pair of upper and lower, for convenience the lower one is called the first lifting operation means 200, the upper one is called the second lifting operation means (300). Any one of the first elevating operation means 200 and the second elevating operation means 300 is connected to the load or connected to the loading means on which the load is loaded, lifting the profile 100 in a state installed in the profile 100. As you move up and down on the axis, you can lift and lower the load. In particular, when the lifting operation means (200,300) are raised and lowered without interference of the locking portion 140 provided in the profile 100, and has a configuration that stops by stopping the action on the locking portion 140 at a predetermined height, which will be described later It will be described in detail.

The elevating driving means 400 is coupled between the first elevating operation means 200 and the second elevating operation means 300 to provide the driving force necessary for the elevating operation means 200 and 300 to elevate. Specific examples of the elevating driving means 400 may include a hydraulic actuator that can exert a large force and has excellent buffering performance and control performance. 1 illustrates a hydraulic actuator including a hydraulic cylinder 410 and a piston rod 420 that operate by receiving a working fluid from a hydraulic source (not shown).

The first elevating operation means 200 and the second elevating operation means 300 and the elevating driving means 400 configured as described above are installed in the profile 100 in an assembled state as shown in FIG. 1.

Next, a specific embodiment of the above-described lifting operation means 200 and 300 will be described in detail.

3 and 4 are an exploded perspective view and an assembled perspective view of the lifting operation means disclosed in this embodiment, Figures 5 and 6 are a front view and a side view of the lifting operation means. In the present embodiment, the first lifting operation means 200 and the second lifting operation means 300 are configured in the same configuration as only the coupling positions of the lifting driving means 400 are different. Therefore, it is assumed that the lifting operation means shown in Figs. 2 to 6 is the first lifting operation means, and the configuration of the first lifting operation means will be mainly described.

The first lifting operation means 200 has an upper frame 220 and a lower frame 230 and a pair of left and right support frames 240 connecting them. The upper frame 220 is formed with a vertical through hole 221 is inserted into the lower end of the elevating driving means 400 to connect the elevating driving means 400 described above. In addition, the upper side of the support frame 240 through the left and right through holes in which the coupling pin 250 is inserted so as to secure the lower end of the elevating driving means 400 inserted into the upper and lower through holes 221 with the coupling pin 250. 241 is formed. Accordingly, as can be seen in Figure 1, the first lifting operation means 200 is a support frame (in the state in which the lower end of the elevating drive means 400 is inserted into the upper and lower through holes 221 of the upper frame 220 ( The coupling pin 250 is inserted into the left and right through holes 241 on the upper side to be coupled to the lifting driving means 400. On the other hand, the upper and lower through-holes are formed in the lower frame 230 of the first elevating operation means 200 can be inserted into the upper end of the elevating driving means 400, the coupling pin is also inserted into the lower side of the support frame 240 The left and right through holes 242 are formed, so that the first lifting operation means 200 can be compatible with the second lifting operation means. Therefore, in the case of the second lifting operation means 300, as shown in FIG. 1, the upper and lower portions of the lifting driving means 400 are inserted into the upper and lower through holes of the lower frame 230, and the left and right penetrating through the lower side of the supporting frame 240 is performed. The coupling pin 250 ′ is inserted into the ball to be coupled with the lifting driving means 400. And, although not shown in the drawings, the structure for loading the load to be lifted is installed on the upper frame 220 of the second lifting operation means (300).

Guide arms 222 and 232 coupled to the profile 100 are formed on the upper frame 220 and the lower frame 230 of the first lifting operation means 200, respectively. That is, the guide arms 222 and 232 partially surround both sides of the flange 120 on which the locking portion 140 of the profile 100 is provided, so that the first lifting operation means 200 smoothly in the profile 100. The lifting operation can be performed. In addition, grooves are formed in the front portions of the upper frame 220 and the lower frame 230 so that the engaging portion 140 of the profile 100 can pass therethrough.

A latch 210 is installed between the pair of support frames 240, and the latch 210 is between the support frames 240 by a rotation support pin 260 passing through the support frame 240. It is possible to rotate. The clasp 210 and the rotation support pin 260 are coupled in a tight state so as not to rotate relative to each other, and the rotation support pin 260 is rotated so as to rotate the combined clasp 210 at a desired angle. The lever 270 that can be rotated is coupled to the rotation support pin 260. In addition, as mentioned above, the locking grooves 211 and 212 having right angles are formed at the upper end and the lower end of the latch 210 so as to be engaged with the locking portion 140 of the profile 100, respectively. Accordingly, the latch 210 is rotated relative to the locking portion 140 of the profile 100 when the first lifting operation means 200 is raised or raised when the profile 100 is raised, and the stopping groove ( 211, 212 is caught by the locking portion 140 of the profile (100).

The rear end side of the clasp 210 is coupled to the elastic providing means 280 which is installed on the support frame 240, the elastic providing means 280 to rotate the latch 210 in the clockwise direction or the opposite direction To give the force to rotate. The elasticity providing means 280 is composed of the clamping restraining member 281, the rotary coupling member 282 and the elastic member 283. The clasp restraining member 281 is formed of a portion surrounding the rear end of the clasp 210 at both sides and an axis extending from the portion to form a substantially Y shape, and a clasp (2) at the portion wrapping the rear end of the clasp 210 at both sides. The rear end of the 210 is coupled to the connecting pin 284 so that the rear end of the latch 210 can be rotated in the vertical direction. In addition, the shaft portion of the latch restraint member 281 is rotatably coupled by the rotation coupling member 282 between the support frame 240. The elastic member 283 may be embodied as a compression coil spring that is fitted to the shaft portion of the latch restraint member 281, in particular, the elastic member 283 is a rear end portion of the latch 210 in the latch restraint member 281 at both sides. By being installed between the wrapping portion and the rotary coupling member 282, the elastic force pushing the latch 210 toward the profile 100 is exerted. Therefore, for example, when the lower end locking groove 212 of the latch 210 is caught in the locking portion 141 of the profile 100 in the lifting operation means 200 and 300 installed in the profile 100 as shown in FIG. 7A, Since the elastic force of the elastic member 283 is acting on the lower end locking groove 212 of the latch 210, the lifting operation means (200, 300) is maintained in a state fixed to the profile (100).

The configuration of the first elevating operation means 200 described above is equally applied to the second elevating operation means 300, and only the coupling position of the elevating driving means 400 is different.

Next, the lifting operation of the lifting device according to the present invention will be described based on the configuration of the above-described embodiment.

7A to 7H are diagrams illustrating a lifting operation process of the lifting apparatus according to the embodiment of the present invention, which shows a profile and a side of the lifting operation means for convenience. Referring to these drawings, look at the operation sequence of the lifting device made when the load is raised to a predetermined height as follows.

First, as shown in FIG. 7A, the first lifting operation means 200 moves on the profile 100 by catching the locking groove 212 provided at the lower end of the latch 210 on the locking portion 141 of the profile 100. It is not fixed. Similarly, the second elevating operation means 300 is also fixed on the profile 100 by engaging the engaging groove 312 provided at the lower end of the latch 310 on the other engaging portion 144 of the profile 100. have. In this state, the lifting driving means 400 which connects the first lifting operation means 200 and the second lifting operation means 300 is operated. That is, when the working fluid is supplied from the hydraulic source (not shown) to the hydraulic cylinder 410 of the elevating driving means 400 illustrated as the hydraulic actuator in this embodiment, the hydraulic cylinder 410 and the piston rod 420 are relaxed. As the second lifting operation means 300 is raised as shown by the arrow. At this time, the latch 310 of the second lifting operation means 300 is received by the elastic member 383 of the elasticity providing means as shown in Figure 2 to be rotated in the counterclockwise rotation opposite direction, Figure 7b and Figure As shown in 7c, the second lifting operation means 300 is raised in a state where the lower portion of the latch 310 is in close contact with the profile 100 at all times.

In order to be fixed to the locking portion 144 positioned at the height in the state where the second lifting operation means 300 is raised to a predetermined height, it is slightly smaller than the locking portion 145 of the position to stop as shown in FIG. 7D. The hydraulic cylinder 410 and the piston rod 420 are relaxed so that the latch 310 is positioned on the upper side thereof, and the hydraulic cylinder 410 and the piston rod 420 are retracted as shown in FIG. 7E. Then, the lower end locking groove 312 of the latch 310 is caught on the locking portion 145, so that the second lifting operation means 300 is fixed to the profile 100 in a stationary state.

Meanwhile, FIGS. 7F to 7H illustrate a process in which the first lifting operation means 200 moves up from the first locking portion 141 position on the profile 100 to the upper locking portion 142 position. Since the same as the lifting process of the second lift operation means 300 shown in Figure 7a to 7e will be omitted a detailed description thereof.

As described above, the elevating device according to the present invention is to be raised to the position of the desired height by repeating the process of Figs. 7a to 7h, either one of the first elevating operation means 200 or the second elevating operation means (300) By connecting a load or connecting the means which loaded the load, it can be conveyed to a predetermined height.

Next, Figures 8a to 8j is a view showing the lowering operation process of the elevating device according to an embodiment of the present invention, it is shown to cut the profile and the side of the elevating operation means for convenience. Referring to these drawings, look at the operation sequence of the lifting device made when lowering the load to a predetermined height as follows.

First, in the state of FIG. 8A, similarly to FIG. 7A, the locking grooves 212 and 312 at the lower ends of the first lifting operation means 200 and the second engagement operation means 300 are provided at the latches 210 and 310, respectively. By locking on the locking portions 142 and 145 of the 100, it shows a fixed state without moving on the profile 100.

From the state of FIG. 8A, as shown in FIG. 8B, the hydraulic cylinder 410 and the piston rod 420 of the elevating driving means 400 are slightly contracted so that the latch 210 of the first elevating operation means 200 can be moved into the profile 100. To be spaced apart from the locking portion 142. At this time, the latch 210 is spaced apart so that it can rotate in the clockwise rotation direction on the drawing without receiving obstacles.

Subsequently, using the lever 270 of the rotary support pin as shown in FIG. 8C, the latch 210 is rotated clockwise such that the upper portion of the latch 210 of the first lifting operation means 200 is in close contact with the profile 100. Rotate in the direction. Then, the upper portion of the latch 210 is pushed toward the profile 100 by the elasticity provided from the elastic member 283 of the elasticity providing means, the hydraulic cylinder 410 and the piston rod 420 of the elevating driving means 400. The first lifting operation means 200 can be lowered without being bound by the locking portion 142 of the profile 100 at the time of relaxation.

Therefore, if the hydraulic cylinder 410 and the piston rod 420 are continuously relaxed as shown in FIGS. 8D and 8E, the catch 142 in which the catch 210 of the first lift operation means 200 is first caught is released. Passing through, the first lifting operation means 200 is lowered to the locking portion 141 below. As shown in FIG. 8E, the lever 270 is rotated again in the counterclockwise direction in the state where the first lifting operation means 200 completely passes through the locking portion 142 that was initially caught. Then, the first lifting operation means 200 is lowered while maintaining the state in which the lower portion of the latch 210 is in close contact with the profile 100 by the elasticity provided from the elastic member 283 of the elastic providing means.

When the first lifting operation means 200 completes the descending to a predetermined height as shown in FIG. 8F, the lower end locking groove 212 of the latch 210 is engaged with the locking portion 141 of the corresponding height, thereby providing a first lowering operation. The lifting operation means 200 is stopped.

Meanwhile, FIGS. 8G to 8J illustrate a process in which the second lifting operation means 300 descends from the position of the first catching portion 145 of the profile 100 to the position of the catching portion 144 below. Since it is the same as the descending process of the first lift operation means 200 shown in FIGS. 8A to 8F, a detailed description thereof will be omitted.

As described above, the elevating device according to the present invention descends to a desired height position by repeating the process of FIGS. 8A to 8J. Accordingly, any one of the first elevating operation means 200 or the second elevating operation means 300 may be used. It becomes possible to convey the load connected to one side, or the means which loaded the load to predetermined height.

In the above embodiment has been described with respect to the configuration and operation for lifting the load while lifting the alternating operation means (200,300) in the state in which the lifting means (200,300) are installed on the profile (100) as the lifting shaft. However, the present invention may be disclosed as a configuration and operation of elevating the profile 100 in a state in which the elevating operation means (200,300) is fixed to an external structure such as a temporary stand installed on the outer wall of the building. Hereinafter, the same reference numerals are given to the same parts as the drawings of the above-described embodiment, and will be described in detail.

Profile 100 is made of a structural material such as an H-beam having a plurality of engaging portions in the vertical direction. Such a profile 100 may be combined with a loading means for lifting and lowering the load.

Lifting operation means (200,300) has the same configuration as the above-described embodiment. However, any one of the first elevating operation means 200 and the second elevating operation means 300 is fixed to an external structure such as a temporary platform installed on the outer wall of the building structure. 9A to 9E illustrate an example in which the second elevating operation means 300 is fixed to the external structure 500, and the first elevating operation means 200 is configured to elevate the profile 100. On the contrary, the first elevating operation means 200 is fixed to the external structure 500, the second elevating operation means 300 may be configured to elevate the profile 100.

Looking at the process of raising the profile 100 in the order illustrated in Figures 9a to 9e as follows.

First, as shown in FIG. 9A, the upper end of the second lifting operation means 300 is fixed to the external structure 500 by the coupling pin 350, and the first lifting operation means 200 and the second lifting operation means ( 300 all face the profile 100. And, it is assumed that profile 100 is placed on the ground, for example. At this time, the latches 210 and 310 of the first elevating operation means 200 and the second elevating operation means 300 may be supported by the engaging grooves 211 and 311 of the upper end thereof, respectively, below the engaging portions 141 and 144 of the profile 100. It is rotated in the form. In particular, by the elasticity provided from the elastic members (283, 383) of the elastic providing means, the upper ends of the latches (210, 310) are always forced to be in close contact with the profile (100) side.

As shown in FIG. 9B, the hydraulic cylinder 410 and the piston rod 420 of the lifting driving means 400 are sufficiently relaxed to lower the first lifting operating means 200. At this time, the upper portion of the latch 210 of the first lifting operation means 200 maintains a state of being always in close contact with the profile 100 by the elasticity of the elastic member 283.

When the catch 210 is caught by the catching portion 141 of the profile 100 in a state where the first lift operation means 200 is lowered to a predetermined height as shown in FIG. 9C, the lift driving means (as shown in FIGS. 9D and 9E) The hydraulic cylinder 410 and the piston rod 420 of the 400 are contracted. Then, the first lifting operation means 200 is raised again, since the upper portion of the latch 210 is always in close contact with the profile 100 by the elasticity acting from the elastic member 283 of the elastic providing means, The profile 100 on which the locking portion 141 is supported by the latch 210 of the elevating operation means 200 is raised together.

Since the profile 100 rises together as the first lift operation means 200 rises, the profile 100 can be raised by a desired height by continuously lifting the first lift operation means 200.

On the other hand, when the profile 100 is lowered, as shown in FIG. 8A, the second lifting operation means 300 is disposed such that the lower end engaging groove 312 of the second lifting operation means 300 is in contact with the profile 100 side. Rotating, the latch 210 of the first lifting operation means 200 is in a state of supporting the locking portion 141 of the profile 100 as shown in Figure 9c. Then, since the load of the profile 100 acts only on the first lift operation means 200, the profile 100 is lowered as the first lift operation means 200 descends to a predetermined height when the lift driving means 400 relaxes. Will descend.

In the above described the present invention based on the preferred embodiment, the present invention is not limited to the above embodiment, various modifications by those skilled in the art within the scope of the technical idea of the present invention This is possible.

1 is a perspective view showing an embodiment of the present invention installed in a profile.

2 is a plan view of a lifting device according to the present invention.

Figure 3 is an exploded perspective view of the first lift operation means in an embodiment of the present invention.

4 is an assembled perspective view of the first lifting operation means of FIG.

5 is a front view of the first lift operating means of FIG.

6 is a side view of the first lift operating means of FIG.

7A to 7H are cutaway views of the profile and the side of the lifting operation means to show the lifting operation process of the lifting apparatus according to the embodiment of the present invention.

8A to 8J are cut-away views of the profile and the side of the elevating operation means to show the lowering operation process of the elevating apparatus according to the embodiment of the present invention.

9A to 9E are views illustrating a process of raising a profile in a lifting device according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: Profile 110: Web

120,130: Flange 140,141,142,144,145: Hanging part

200: first lifting operation means 210,310: latch

211,212,311,312: Hanging groove 220: Upper frame

221: upper and lower through holes 222,232: guide arm

230: lower frame 240: support frame

241,242: left and right through holes 250: coupling pin

260: rotation support pin 270: lever

280: elasticity providing means 281: clamping member

282: rotary coupling member 283, 383: elastic member

300: second lifting operation means 400: lifting driving means

410: hydraulic cylinder 420: piston rod

500: external structure

Claims (11)

A profile having a height above a lifting position of the cargo and having a locking portion for each lifting section; One of the upper and lower pairs having a frame and a latch provided at one end thereof to be engaged with the locking part while being rotatably mounted to the locking part, any one of which is connected to a load, and is installed in the profile. Lifting the load while alternately lifting the profile as a lifting shaft in the lifting, without lifting the interference of the locking portion during the lifting, the lifting stops by engaging the stopping portion at a predetermined height, the guide arm partially wraps the profile Operating means; And A lifting device comprising a lift drive means coupled to the lift operation means for providing a lift drive force to the lift operation means. A profile having a plurality of engaging portions in the vertical length direction; The upper and lower pairs are provided with a frame and a latch provided at one end of the frame to be rotatable relative to the locking part, and the other end is fixed to an external structure. Lifting operation means for lifting up and down without interference of the locking portion while stopping at a predetermined height while supporting the lower portion of the locking portion, and the guide arm for partially wrapping the profile; And A lifting device comprising a lifting and driving means for providing a lifting drive force to the lifting operation means is coupled to the lifting operation means of the upper and lower lifting operation means. The method according to claim 1 or 2, The profile is made of an H-beam, the load lifting device, characterized in that formed on one flange of the H-beam. The method according to claim 1 or 2, The frame of the elevating operation means is made of an upper frame and a lower frame and a support frame connecting them, the latch is a load lifting device, characterized in that installed in the support frame by a rotation support pin. The method of claim 4, wherein The support frame lifting device, characterized in that the elastic providing means for rotating the latch against the profile is installed. The method of claim 5, The elasticity providing means, A clasp restraining member rotatably coupled to a rear end of the clasp to restrain the clasp; A rotation coupling member rotatably coupling the latch restraint member to the support frame; And a resilient member installed between the clasp restraint member and the rotary coupling member to provide an elastic force to push the clasp restrained to the profile side. The method of claim 4, wherein The rotary support pin is a lifting device, characterized in that the lever for rotating the rotary support pin and the latch by a desired angle by hand. The method of claim 4, wherein Upper and lower through holes are respectively provided in the upper frame and the lower frame of the elevating operation means, and left and right through holes are respectively provided in the upper and lower portions of the support frame, and the end of the elevating driving means is inserted into the upper and lower through holes. The lifting device, characterized in that the coupling pin is inserted into the left and right through holes are coupled to the lifting operation means and the lifting drive means. The method according to claim 1 or 2, The lifting device, characterized in that the engaging portion and the engaging portion of the locking portion is formed at a right angle. delete The method according to claim 1 or 2, The lifting device is a load lifting device, characterized in that the hydraulic actuator.

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