KR20130021626A - Synchronized extending retracting electro-mechanical telescopic elevation system - Google Patents

Abstract

PURPOSE: A simultaneously expanding and retracting type telescopic ascending and descending system is provided to easily maintain a system and to minimize the components by simultaneously ascending and descending a plurality of cylinders according to a regular rate. CONSTITUTION: A simultaneously expanding and retracting type telescopic ascending and descending system comprises an ascended article mounting unit(1), a power source(2), and an ascending and descending unit(3). An ascended article is mounted on the ascended article mounting unit. The power source supplies power for the ascent and descent of the ascended article. The ascending and descending unit connects the ascended article and the power source in order to ascend or descend the ascended article using the power of the power source. The ascending and descending unit is extended or is contracted in a method which a plurality of cylinders simultaneously slides according to the displacement. A plurality of cylinders includes a plurality of outer cylinders and inner cylinders. A screw-shaped protrusion is formed at a plurality of the outer cylinders, and a screw-shaped groove guiding relative movement direction of the outer cylinder and the inner cylinder is formed by individually accommodating the screw-shaped protrusion in a plurality of the inner cylinders.

Description

Simultaneous telescopic lifting system {SYNCHRONIZED EXTENDING RETRACTING ELECTRO-MECHANICAL TELESCOPIC ELEVATION SYSTEM}

The present invention relates to a simultaneous-developed telescopic elevating system capable of elevating an elevating object to a desired position by deploying a plurality of cylinders simultaneously.

In general, the commonly used lifting system is largely provided in an electric and hydraulic method. Representative of the electric lifting system is the elevator of the building, which has the electric motor as the main power source, and the structure is towing by transmitting the power with the metal wire. The hydraulic lifting system is equipped with the motor, pump, cylinder and the speed of the fluid It is a structure that moves up and down using the quantity, direction.

By the way, the elevator, the wheel and the steel structure for supporting it is essential to the point corresponding to the highest height of the lifting trajectory, there is a problem that it is difficult to install or demolish it.

For example, if there is a need to install a security camera for a special purpose in the middle of the city, but for various reasons to install and use only at night and daytime dismantling, the existing elevator structure is practically unsuitable because it is difficult to install and dismantle.

In addition, the conventional pneumatic method as disclosed in Korean Patent Laid-Open Publication No. 2002-0048664 has a practical limitation because the structure itself is complicated and a considerable time and cost are required for manufacturing.

In other words, the elevator is effective in permanent buildings, but there is a problem inefficient to apply to the temporary use, the pneumatic lifting system is a suitable for industrial, such as lifting and lifting of heavy and heavy objects, automation equipment, temporary and mobile There is a problem that is difficult to apply to this frequent use.

On the other hand, the method of elevating the object by rotating the screw connected to the electric motor is superior to the above wire traction type and pneumatic type in the simplicity, light weight, mobility, economical, safety, maintainability of the structure. However, the so-called screw-drive method, which has been devised and sold to date, has a structure that supports a given load and prevents natural fall due to the gravity of the cylinder with only a simple locking collar attached to the telescopic cylinder. There is a limit to lifting weights, and therefore it is also vulnerable to safety and its use is limited.

In addition, all kinds of screw-driven telescopic lifting devices have the force to rotate the lifting object in the same direction as the screw due to the frictional force caused by the rotation, and reverse rotation along the thread under the influence of gravity and the load of the upper part during the ascension. There is a tendency to do so that it is very difficult to raise three or more cylinders without a separate device that suppresses the rotation of the object. The entire cylinder does not have a uniform movement. Because of this, the consumption of each part is different, and after a certain period of time, the accuracy is inevitably reduced, and there may be a problem in the exact numerical control operation.

Korean Laid-Open Patent No. 2002-0048664

The present invention is to solve the problems of the prior art as described above, to provide a telescopic lifting system that can support more loads structurally more stable and robust with only a mechanical structure of electricity as the main power source will be.

And, to provide a telescopic elevating system that can be simpler in structure, parts can be minimized, and maintenance is simplified.

It is also an object of the present invention to provide a simultaneous development telescopic elevating system capable of raising and lowering a plurality of cylinders simultaneously by a predetermined ratio.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

Simultaneous development telescopic lifting system according to the present invention proposed as described above, the lifting object article mounting unit for mounting the lifting object; A power source for providing power for raising and lowering the lifting object; And an elevating unit connecting the elevating object and a power source to elevate and elevate the elevating object article by using the power of the power source, wherein the elevating portion includes a plurality of cylinders simultaneously having the same displacement. It extends and contracts in a sliding manner.

As described above, according to the simultaneous-developed telescopic elevating system according to the present invention, since a plurality of cylinders can simultaneously elevate, that is, extend and contract simultaneously at a constant rate, the telescopic elevating system can be further extended and contracted. There is an advantage that can be made quickly and smoothly.

In addition, there is an advantage that the structure is simpler, the parts can be minimized, and the maintenance can be simplified.

In addition, only a mechanical structure using electricity as a main power source has an advantage of supporting more loads because it is structurally more stable and robust.

In addition, it is expected to affect various domestic industries. Similar devices are manufactured and used for surveillance, reconnaissance, and information gathering in some countries, as well as for mobile radars, mobile antennas, mobile lighting, and even rockets and missile launchers. . Up to now, the same or similar devices have not been introduced in Korea, but in the near future, many demands will be generated mainly for logistics and watering, so if the present invention is commercialized, import substitution may be significant.

In addition, due to the breakthrough performance of the present invention, as much as possible to precisely raise and lower the massive weight (extension or contraction), the logistics industry, lifting equipment, robots and FA parts, medical equipment, imaging equipment, large-scale lighting equipment, etc. The impact on technology development and market expansion will be great. In addition, since the present invention is the world's first innovative structure with the highest safety and usability, it may be easy to develop overseas markets.

1 is a perspective view showing a first embodiment of the simultaneous development telescopic lifting system according to the present invention is contracted.
Figure 2 is a cross-sectional view showing a state in which a plurality of cylinders are contracted in the first embodiment of the simultaneous development telescopic lifting system according to the present invention.
Figure 3 is a view showing the relative movement of the outermost cylinder and the first outer cylinder in the first embodiment of the simultaneous development telescopic lifting system according to the present invention.
Figure 4 is a view showing a plurality of the outer cylinder and the lifting object mounting portion in the first embodiment of the simultaneous development telescopic lifting system according to the present invention.
5 is a view showing a coupling structure between a first outer cylinder and a first inner cylinder in the first embodiment of the co-developed telescopic elevating system according to the present invention.
6 is a view showing a coupling structure between a plurality of inner cylinders in the first embodiment of the simultaneous-developing telescopic elevating system according to the present invention.
Figure 7 is a view showing the appearance of the stopper in the first embodiment of the simultaneous development telescopic lifting system according to the present invention.
8 is a cross-sectional view showing a plurality of cylinders in the first embodiment of the simultaneous development telescopic lifting system according to the invention.
Figure 9 is a perspective view showing a state in which a plurality of cylinders in the first embodiment of the simultaneous development telescopic lifting system according to the present invention.
10 is a cross-sectional view showing a plurality of cylinders in a contracted embodiment in the second embodiment of the simultaneous development telescopic lifting system according to the present invention.

Hereinafter, with reference to the accompanying drawings, an embodiment of a co-developed telescopic elevating system according to the present invention will be described in more detail.

1 is a perspective view showing the first embodiment of the simultaneous development telescopic lifting system according to the present invention is contracted, Figure 2 is a plurality of cylinders in the first embodiment of the simultaneous development telescopic lifting system according to the present invention 3 is a cross-sectional view showing a state in which the outermost cylinder and the first outer cylinder move relative to each other in the first embodiment of the simultaneous-developing telescopic elevating system according to the present invention. Figure 4 is a view showing a plurality of outer cylinder and the elevating object mounting portion in the first embodiment of the simultaneous development telescopic lifting system according to the present invention, Figure 5 is a first embodiment of the simultaneous development telescopic lifting system according to the present invention. FIG. 6 is a view showing a coupling structure between a first outer cylinder and a first inner cylinder, and FIG. 6 is a view showing a coupling structure between a plurality of inner cylinders in the first embodiment of the co-developing telescopic elevating system according to the present invention. 7 is a view showing the stopper in the first embodiment of the simultaneous development telescopic lifting system according to the present invention, Figure 8 is a plurality of cylinders in the first embodiment of the simultaneous development telescopic lifting system according to the present invention Figure 9 is a cross-sectional view showing a state, Figure 9 is a perspective view showing a state in which a plurality of cylinders is extended in the first embodiment of the simultaneous development telescopic lifting system according to the present invention.

1 to 9, the simultaneous development telescopic elevating system according to the present invention, the elevating object mounting unit (1) for mounting an elevating object (not shown), and for elevating the elevating object It includes a power source (2) for providing power, and the elevating unit for connecting the lifting object and the power source (2) so that the lifting object can be elevated by using the power of the power source (2). In addition, the present invention, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 to be described later included in the lifting unit extending and extending in such a manner that the same movement simultaneously It is characterized by shrinking.

The lifting object article mounting unit 1 is located at the top of the simultaneous-developing telescopic lifting system, and is provided in a configuration for mounting the lifting object. And, according to the relative movement of the plurality of cylinders (30, 31, 32, 33, 34, 35, 36, 37, 38), the lifting object mounting unit 1 can be moved up and down. In this case, the lifting object may be, for example, a variety of articles requiring lifting, such as a military device.

The lifting object article mounting portion 1 has a flat disk shape as a whole, and a thread is formed on the outer circumferential surface thereof so as to be coupled to the fourth outer cylinder 38 to be described later. On the other hand, a screw thread for engaging the thread of the elevating object mounting portion 1 is also formed on the upper inner surface of the fourth outer cylinder 38. Therefore, the lifting object mounting portion 1 is coupled to the fourth outer cylinder 38 in such a manner that the threads of the lifting object mounting portion 1 and the threads of the fourth outer cylinder 38 mesh with each other and rotate. Can be fixed.

The power source 2, as a configuration for providing power for the lifting object is raised and lowered, may be installed on a fixed surface such as the ground. The power source 2 provides a driving force for allowing the relative movement by rotating the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38, such as an electric motor. It can be as many as you can.

In addition, in order to transfer the power generated from the power source 2 to the lifting unit, various gears and bearings may be further provided.

The lifting unit is provided with a structure that can be extended and contracted as the plurality of cylinders (30, 31, 32, 33, 34, 35, 36, 37, 38) sliding each other. The spiral protrusion is formed on one surface of the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37 and 38, and the spiral protrusion is accommodated on the other surface of the cylinder 30. A spiral groove is formed to guide the direction of relative movement with either cylinder.

In more detail, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are provided so that a plurality of cylinders having different diameters overlap each other. Among the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, and 38, the outermost cylinder 30 may be fixed to the base portion 20. The base unit 20 may be installed on a fixed surface such as the ground or an indoor floor, and may be integrally coupled with the power source 2. In addition, the outermost cylinder 30 may be fastened to the base portion 20 using various means such as, for example, a bolt.

The outermost cylinder 30 is a cylinder other than the outermost cylinder 30 in a state in which the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are contracted ( 31, 32, 33, 34, 35, 36, 37, 38 will form a space for accommodating. That is, the outermost cylinder 30 is a hollow cylindrical shape, the bottom portion is fixed to the base portion 20. In addition, the first inner cylinder 31 to be described later is penetrated through the bottom portion of the outermost cylinder 30. That is, a through coupling hole for penetrating the first inner cylinder 31 is formed in the bottom portion of the outermost cylinder 30. The first inner cylinder 31 penetrating the bottom surface of the outermost cylinder 30 is connected to the power source 2, whereby the plurality of cylinders 30, 31, 32, and 33 are separated from the power source 2. , 34, 35, 36, 37, 38 is powered to extend or contract.

At this time, the inner groove of the outermost cylinder 30 is formed with a guide groove 301 extending in the vertical direction. The guide groove 301 may be formed in plural. By maintaining the guide protrusion 322 of the first outer cylinder 32 to be described later in the guide groove 301, the relative movement of the first outer cylinder 32 with respect to the outermost cylinder 30 is up and down In addition to being limited in the direction, the first outer cylinder 32 may be constrained so as not to rotate together with the rotation of the first inner cylinder 31. Here, the guide groove 301 of the outermost cylinder 30 and the guide protrusion 322 of the first outer cylinder 32, the first outer cylinder 32 is up and down with respect to the outermost cylinder 30. It may be referred to as an outer elevating guide portion that guides relative movement only in the direction. That is, the outer elevating guide portion may be regarded as including a guide groove 301 of the outermost cylinder 30 and a guide protrusion 322 of the first outer cylinder 32.

Meanwhile, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, and 38 further include a first inner cylinder 31 and a first outer cylinder 32. The first inner cylinder 31 and the first outer cylinder 32 are simultaneously accommodated in the inner receiving space of the outermost cylinder 30, the first outer cylinder 32 of the outermost cylinder 30 The first inner cylinder 31 is slidably adjacent to the inner side, and the first inner cylinder 31 is rotated and interfering with the first outer cylinder 32 to lift the first outer cylinder 32. It is located inside the outer cylinder 32.

In more detail, the first inner cylinder 31 includes a power transmission unit 311 receiving power from the power source 2 and a first inner interference unit 312 in which the spiral protrusion is formed. The first outer cylinder 32 is integral with the first disk portion 321 and the first disk portion 321, in which the helical groove is formed and forms the bottom surface of the first outer cylinder 32. And a cylindrical first outer interference part 322 formed to form a side surface of the first outer cylinder 32.

The first inner cylinder 31 and the first outer cylinder 32 are both formed in a hollow cylindrical shape as a whole. The power transmission unit 311 is provided at the lower end of the first inner cylinder 31 to be connected to the power source 2 through the bottom of the outermost cylinder 30. That is, the power transmission unit 311 is placed below the outermost cylinder 30.

In addition, the first inner interference portion 312 is a part of the first inner cylinder 31 corresponding to the upper side of the power transmission portion 311, the spiral projection of the first inner interference portion 312 It is formed on the outer surface to form a spiral in the direction of the rotation center axis of the first inner cylinder (31).

In addition, the first disk portion 321 has a hollow disc shape as a whole. That is, a screw coupling hole is formed in the central portion of the first disk portion 321 to be screwed through the first inner interference portion 312. That is, the spiral groove is formed along the inner circumferential surface of the screw coupling hole, and the spiral protrusion of the first inner interference part 312 rotates to be accommodated in the spiral groove of the first disk. The outer cylinder 32 and the first inner cylinder 31 can move relative to each other. At this time, the helical protrusion and the helical groove serve to guide the first outer cylinder 32 and the first inner cylinder 31 so that they can move relative to each other in the ascending and descending direction, and at the same time, the first inner cylinder As the 31 rotates, the first outer cylinder 32 serves to transmit power to move up and down.

In addition, the cross section of the spiral protrusion and the spiral groove has a trapezoidal shape corresponding to each other, the first outer cylinder 32 and the first inner cylinder 31 can be more firmly coupled, the first inner cylinder ( As the 31 rotates, the power can be more smoothly transmitted to the first outer cylinder 32.

At this time, a guide groove for limiting the relative movement between the second inner cylinder 33 and the first inner cylinder 31 to be described later in the up and down direction on the outer surface of the first inner cylinder 31 in which the spiral protrusion is formed ( 314 is formed. The guide groove 314 may be formed in plurality in order to guide the more stable direction of movement. The guide groove 314 may be formed in such a manner that the protruding height of the helical protrusion is shortened to a portion corresponding to the position of the guide groove 314. By maintaining the guide protrusion 333 of the second inner cylinder 33 to be described later in the guide groove 314, the relative movement direction of the first inner cylinder 31 and the second inner cylinder 33 is The first inner cylinder 31 and the second inner cylinder 33 may be constrained to rotate together at the same time.

Here, the guide groove 314 of the first inner cylinder 31 and the guide protrusion 333 of the second inner cylinder 33 are connected to the first inner cylinder 31. It can be referred to as the inner elevating guide portion for guiding the relative movement relative to the vertical direction only. That is, the inner elevating guide portion may be regarded as including the guide groove 314 of the first inner cylinder 31 and the guide protrusion 333 of the second cylinder.

The lower end of the first outer interference portion 322 is fixed to the upper surface of the first disk portion 321, so that the first outer interference portion 322 and the first disk portion 321 is fixed to the overall The outer cylinder 32 is formed. In this case, the first outer interference portion 322 and the first disk portion 321 may be formed separately and fixedly coupled, or may be integrally formed.

At this time, the guide protrusion 322 corresponding to the guide groove 301 of the outermost cylinder 30 is formed long in the vertical direction on the outer surface of the first outer interference portion 322. The guide protrusion 322 may be provided in a number corresponding to the number of guide grooves 301 of the outermost cylinder 30.

On the other hand, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are located between the first inner cylinder 31 and the first outer cylinder 32, and It further comprises a second inner cylinder 33 and a second outer cylinder 34 which interfer with each other. The second inner cylinder 33 is rotated together with the first inner cylinder 31 while being supported by the first disk portion 321. The second outer cylinder 34 moves up and down by interfering with the second inner cylinder 33.

In more detail, the second inner cylinder 33 includes a second inner interference portion 342 in which a spiral protrusion is formed, and a lower end of the second inner cylinder 33 is formed of the first outer cylinder 32. 1 is mounted on the upper surface of the disk portion 321. Therefore, as the first outer cylinder 32 moves up and down, the second inner cylinder 33 moves up and down together while being supported by the first disk portion 321. That is, the second inner cylinder is located outside of the second outer cylinder engaging the second inner cylinder so that the first inner cylinder and the second inner cylinder can rotate and slide with each other by a relatively equal displacement. It can be seen that it is supported by the first outer cylinder.

In addition, the second outer cylinder 34 may include a second disk portion having a helical groove in which the helical protrusion of the second inner interference portion 342 is accommodated and forming a bottom surface of the second outer cylinder 34 ( 341 and a cylindrical second outer interference portion 342 integrally formed with the second disk portion 341 and forming a side surface of the second outer cylinder 34.

The spiral protrusion is formed along an outer surface of the second inner cylinder 33, and the inner surface of the second inner cylinder 33 is a relative of the first inner cylinder 31 and the second inner cylinder 33. In order to guide the direction of movement, a guide protrusion 333 extending in the vertical direction is formed. The guide protrusion 333 may be provided in a number corresponding to the number of guide grooves 314 of the first inner cylinder 31.

On the other hand, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are located between the second inner cylinder 33 and the second outer cylinder 34, and The third inner cylinder 35, the third outer cylinder 36, the fourth inner cylinder 37, the fourth outer cylinder 38, and the like may further include an interfering motion. Here, the relative coupling structure of the third inner cylinder 35 and the third outer cylinder 36, the fourth inner cylinder 37 and the fourth outer cylinder 38 is the first inner cylinder 31 described above. ) And the first outer cylinder 32, the second inner cylinder 33 and the second outer cylinder 34 is the same as the coupling structure. That is, each of the plurality of inner cylinders 31, 33, 35, 37 is each inner cylinder so that the plurality of inner cylinders 31, 33, 35, 37 can rotate and slide with each other by a relatively equal displacement. It can be seen that it is supported by an outer cylinder (30, 32, 34, 36) located outside the outer cylinder (32, 34, 36, 38) engaging the (31, 33, 35, 37).

However, in the size of each cylinder, in the inner space of the outermost cylinder 30, the 1st outer cylinder 32, the 2nd outer cylinder 34, the 3rd outer cylinder 36, and the 4th outer cylinder 38 ), The fourth inner cylinder 37, the third inner cylinder 35, the second inner cylinder 33, and the first inner cylinder 31 may be formed in various sizes, respectively. . In addition, the number of the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 may be variously determined according to a specific installation environment of the co-developing telescopic elevating system.

However, the spiral projections of the second inner cylinder 33, the third inner cylinder 35, and the fourth inner cylinder 37 are inclined in the same direction as the direction in which the spiral projections of the first inner cylinder 31 are inclined. Is formed. Further, on the upper end of each of the inner cylinders 31, 33, 35, 37, the outer cylinders 32, 34, 36, 38 which engage the respective inner cylinders 31, 33, 35, 37 are raised. The stopper 315 is formed so that the height can be limited. The stopper 315 may be formed as a stepped portion having the same height as that of the spiral protrusion and the spiral protrusion is cut off at the upper end of each of the inner cylinders 31, 33, 35, and 37. The stopper 315 is formed at an upper end of each of the inner cylinders 31, 33, 35, and 37 so that the respective outer cylinders 32, 34, 36, and 38 do not rise above a predetermined height. In this case, the outer cylinders 32, 34, 36, and 38 serve to prevent the deviating from the inner cylinders 31, 33, 35, and 37.

In addition, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are formed to have different diameters with respect to the same central axis.

In addition, the elevation article mounting portion, the outer cylinder (32, 34, 36, 38 may be fixed to an upper end of the fourth outer cylinder 38 positioned at the innermost side. This is a cylinder 38 which is located at the innermost side of the outer cylinders 32, 34, 36, 38 when the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are extended. This is because the upper end of the can be positioned at the top of the cooperative telescopic lifting system as a whole.

Hereinafter, with reference to the accompanying drawings, the operation of the simultaneous development telescopic lifting system according to the present invention will be described in detail.

First, an article corresponding to a lifting object may be mounted on the lifting object mounting unit 1.

In addition, the power source 2 may be operated to elevate the object to be elevated. When the power source 2 is operated, for example, the first inner cylinder 31 connected to the power source 2 is rotated through a power transmission device such as a gear. In this case, the second inner cylinder 33, the third inner cylinder 35, and the fourth inner cylinder 37, which are restrained from being rotated relative to the first inner cylinder 31 by the inner guide part, are not limited. ) Also rotates with the first inner cylinder (31).

In addition, the spiral protrusion of the first inner cylinder 31 is rotated in a downwardly inclined direction, and thus the second inner cylinder 33, the third inner cylinder 35, and the fourth inner cylinder 37 are also rotated. Each spiral protrusion rotates in a downwardly inclined direction.

As each of the inner cylinders 31, 33, 35, 37 rotates, each of the outer cylinders 32, 34, 36, 38 that meshes with the inner cylinders 31, 33, 35, 37 relatively interferes. You exercise. That is, each of the outer cylinders gradually rises.

At this time, the respective outer cylinders 32, 34, 36, 38 are raised to support the respective inner cylinders 31, 33, 35, 37 seated on the outer cylinders 32, 34, 36, 38. Since it is raised, the inner cylinders 33, 35, 37 except for the first inner cylinder 31 is raised at the same time. As a result, relative displacement of each of the outer cylinders 32, 34, 36, 38 increases simultaneously, and the fourth inner cylinder 37 located at the innermost side is raised, thereby being fixed to the elevating object mounting unit 1. The lifting object is to rise. That is, the lifting object can rise more quickly in such a way that the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 extend simultaneously.

Each of the outer cylinders 32, 34, 36, and 38 that are raised is limited to not rise above a predetermined height by the stopper 315. That is, each of the outer cylinders 32, 34, 36, 38 is stopped.

On the other hand, in order for the lifting object to descend, the power source 2 is operated so that the first inner cylinder 31 rotates in the opposite direction as when the lifting object is raised. In addition, the inner cylinders 33, 35, and 37 except for the first inner cylinder 31 are also rotated together in opposite directions, whereby the outer cylinders engaged with the respective inner cylinders 31, 33, 35, 37 ( 32, 34, 36, 38) in such a way that the lowering, the lifting object can be lowered. At this time, the plurality of cylinders 30, 31, 32, 33, 34, 35, 36, 37, 38 are simultaneously contracted, the lifting object can be lowered more quickly.

According to the present invention, since the plurality of cylinders can be raised and lowered at the same time, that is, extending and contracting at the same time, the telescopic lifting system can be extended and contracted more quickly and smoothly.

In addition, there is an advantage that the structure is simpler, the parts can be minimized, and the maintenance can be simplified.

In addition, only a mechanical structure using electricity as a main power source has an advantage of supporting more loads because it is structurally more stable and robust.

In addition, it is expected to affect various domestic industries. Similar devices are manufactured and used for surveillance, reconnaissance, and information gathering in some countries, as well as for mobile radars, mobile antennas, mobile lighting, and even rockets and missile launchers. . Up to now, the same or similar devices have not been introduced in Korea, but in the near future, many demands will be generated mainly for logistics and watering, so if the present invention is commercialized, import substitution may be significant.

In addition, due to the breakthrough performance of the present invention, as much as possible to precisely raise and lower the massive weight (extension or contraction), the logistics industry, lifting equipment, robots and FA parts, medical equipment, imaging equipment, large-scale lighting equipment, etc. The impact on technology development and market expansion will be great. In addition, since the present invention is the world's first innovative structure with the highest safety and usability, it may be easy to develop overseas markets.

EMBODIMENT OF THE INVENTION Hereinafter, the 2nd Example of the simultaneous-developing telescopic elevating system by this invention is demonstrated in detail with reference to attached drawing. This embodiment differs from the first embodiment in that power is transmitted and rises in the order from the outermost to the inner cylinder located therein. In the present embodiment, the description of the first embodiment is used for the configuration overlapping with the first embodiment.

FIG. 10 is a cross-sectional view illustrating a plurality of cylinders contracted in the second embodiment of the simultaneous-developing telescopic elevating system according to the present invention. FIG.

Referring to FIG. 10, the present embodiment is a power transmission cylinder 60 for rotating and transmitting power, and is positioned inside the power transmission cylinder 60 to move up and down as the power transmission cylinder 60 rotates. A first inner cylinder 61 to be strengthened, a first outer cylinder 52 seated on an upper end of the first inner cylinder 61, and lowered together with the first inner cylinder 61; and the first outer side The cylinder 52 is accommodated and includes the outermost cylinder 50 for guiding the lifting direction of the first outer cylinder 52.

The outermost cylinder 50 is fixed to the base portion, and the power transmission cylinder 60 is connected to a power source so as to be rotated by receiving power in the base portion corresponding to the lower portion of the outermost cylinder 50.

The lower inner surface of the outermost cylinder 50 is formed with a spiral protrusion for guiding the moving direction of the first inner cylinder (61). In addition, the outer surface of the first inner cylinder 61 is formed with a spiral groove for receiving and engaging the spiral projection of the outermost cylinder 50.

On the other hand, inside the first inner cylinder 61 and the first outer cylinder 52, a second inner cylinder for engaging with the first inner cylinder 61 and the first outer cylinder 52 to rise in sequence ( 62), the second outer cylinder 54, the third inner cylinder 63, the third outer cylinder 56, the fourth inner cylinder 64, and the fourth outer cylinder 57 are located. In the coupling structure in which the respective inner cylinders 61, 62, 63, 64 and the outer cylinders 52, 54, 56, 58 are engaged, the first inner cylinder 61 and the first outer cylinder 52 are connected to each other. It is the same as the structure that is engaged with the power transmission cylinder 60 and the outermost cylinder 50. However, the sizes of each of the inner cylinders 61, 62, 63, and 64 and the outer cylinders 52, 54, 56, and 58 may be designed differently according to specific environments.

In addition, guide grooves for guiding relative movement of the outermost cylinder 50 and the first outer cylinder 52 are formed on the inner surface of the outermost cylinder 50 and the outer surface of the first outer cylinder 52, respectively. And guide protrusions are formed. In addition, guide grooves for guiding the relative movement of the power transmission cylinder 60 and the first inner cylinder 61 also on the inner surface of the power transmission cylinder 60 and the outer surface of the first inner cylinder 61, respectively. And guide protrusions are formed. The guide groove and the guide protrusion are elongated in the vertical direction to perform relative movement of each of the outermost cylinder 50 and the first outer cylinder 52, the power transmission cylinder 60, and the first inner cylinder 61. It is limited to the vertical direction, and serves to transmit the rotational force.

For the operation of this embodiment, when the power transmission cylinder 60 is rotated by a power source, the power transmission cylinder 60 and the first inner cylinder 61 is rotated together. As the first inner cylinder 61 rotates, the first inner cylinder 61 is raised due to the relative movement between the first inner cylinder 61 and the outermost cylinder 50. At this time, as the first inner cylinder 61 rises, the first outer cylinder 52 also rises together.

In addition, the second inner cylinder 62 also rotates together with the power transmission cylinder 60 and the first inner cylinder 61, and gradually rises in accordance with the interference motion with the first outer cylinder 52. That is, the respective inner cylinders 31, 33, 35, 37 interfere with the outer cylinders 32, 34, 36, 38 so that the inner cylinders 31, 33, 35, 37 and the outer cylinder Will rise together.

And, the descending of the co-development telescopic lifting system can be performed by rotating the power transmission cylinder 60 in the opposite direction by the power source.

As such, within the scope of the basic technical idea of the present invention, many modifications are possible to those skilled in the art, and the scope of the present invention should be interpreted based on the appended claims. will be.

1: Mounting object mounting part
2: Power source
3: lifting section
20: base part
30: outermost cylinder
31: first inner cylinder
32: first outer cylinder
33: second inner cylinder
34: second outer cylinder
35: third inner cylinder
36: third outer cylinder
37: fourth inner cylinder
38: fourth outer cylinder

Claims (5)

A lifting object mounting unit for mounting the lifting object;
A power source for providing power for raising and lowering the lifting object; And
And an elevating unit connecting the elevating object and a power source to elevate the elevating object article by using the power of the power source.
The elevating unit is a simultaneous development telescopic elevating system, characterized in that the plurality of cylinders are extended and contracted in such a manner that the sliding movement at the same time by a relatively same displacement. The method of claim 1,
The plurality of cylinders,
A plurality of outer cylinders formed to have different diameters with respect to the same central axis; And
And a plurality of inner cylinders engaged with the plurality of outer cylinders, respectively, for raising and lowering the plurality of outer cylinders.
A spiral protrusion is formed in each of the plurality of outer cylinders, and the spiral protrusion is formed in each of the plurality of inner cylinders so as to guide a relative direction of movement between each outer cylinder and the inner cylinder. Telescopic elevating system. The method of claim 2,
The plurality of inner cylinders are formed with an inner elevating guide portion for restricting the plurality of inner cylinders to rotate together and to relatively move only in the vertical direction,
And the outer elevating guide portion is formed in the plurality of outer cylinders to guide the plurality of outer cylinders to move relative to each other in the vertical direction only. The method of claim 4, wherein
Wherein each of the plurality of inner cylinders is supported by an outer cylinder positioned outside of the outer cylinder engaged with each inner cylinder so that the plurality of inner cylinders can rotate and slide with each other by a relatively equal displacement. Deployable telescopic elevating system. The method of claim 2,
The cross-section of the spiral projection and the spiral groove is a simultaneous expansion telescopic lifting system, characterized in that the trapezoidal shape corresponding to each other.

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