KR102266514B1 - Lift device - Google Patents

Abstract

The present invention relates to a lift device for transporting cargo in a vertical direction, comprising: a main body having a guide rail formed thereon; and a carrier coupled to the main body to transport cargo while moving along the guide rail.

Description

lift device {LIFT DEVICE}

The present invention relates to a lift apparatus, and more particularly, to a lift apparatus capable of rapidly transporting a plurality of cargoes in a vertical direction even in a narrow space.

In general, a conveyor device is a device for receiving transport materials from one side and transporting them to a desired position, and wheels are installed at the start and end positions of transport, respectively, and a transport mechanism in the form of a belt, chain, or rope is connected to the wheels on both sides. It has a basic configuration in which the conveyed material is placed and conveyed on the conveying mechanism installed in this way.

In particular, the conventional transport device for transporting cargo in the vertical direction is characterized in that it is composed of a carrier for loading the cargo, and a driving means for transporting the carrier in a vertical upper or vertical lower direction.

However, in the conventional vertical vertical transporting device, when transporting the lower or upper article to the opposite side, the device must be implemented with a complicated mechanism such as a pick-up mechanism or a carrier by inserting the carrier into the cassette. complexity, and thus there is a risk that malfunctions may occur during operation.

In addition, the conventional vertical transport system mainly transports cargo downward or upward through a spiral conveyor or an inclined conveyor, and since such a conventional spiral or inclined conveyor is bulky and requires a large installation space, a narrow space There is a limit to the transport of cargo in

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the derivation of the present invention or acquired in the process of derivation of the present invention, and it cannot necessarily be said to be a known technique disclosed to the general public before the filing of the present invention .

Korean Patent Publication No. 10-2013-0140517

One aspect of the present invention can efficiently transport cargo even in a narrow space because it takes up less space compared to the conventional spiral-type or inclined-type lift device, and the transport speed can be improved by transferring a large number of cargoes at once A lift device is provided.

In addition, there is provided a lift device capable of preventing the cargo loaded on the carrier from being separated from the transport process in the process of transporting the cargo in the vertical direction.

In addition, there is provided a lift device capable of selectively discharging the cargo to be circulated and improving transport efficiency by reducing the impact generated during the transport process.

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

A lift device according to an embodiment of the present invention is a device for transporting cargo in a vertical direction, comprising: a body having a guide rail formed thereon; and a carrier coupled to the main body to transport cargo while moving along the guide rail.

The body is

a housing in which curved guide rails are formed at upper and lower portions, a straight guide rail is formed between a pair of curved guide rails, and an auxiliary guide rail is formed inside the curved guide rail;

a disk-shaped upper wheel installed on the upper curved guide rail side and having a toothed gear formed along the circumferential direction;

a disk-shaped lower wheel installed on the lower curved guide rail side and having toothed gears formed along the circumferential direction;

a chain fastened to the upper wheel and the lower wheel;

and a support member formed at the lower end of the housing to support the housing from the ground,

The carrier is

a rectangular parallelepiped body frame;

a rotating shaft formed through the front and rear portions of the body frame;

a support frame fastened to one end of the rotation shaft and formed on the front surface of the body frame, on which cargo is seated;

a plurality of support rollers installed on the side surface of the body frame and fastened to the curved guide rail and the straight guide rail to move along the curved guide rail and the straight guide rail; and

It is fastened to the other end of the rotating shaft and is formed on the rear surface of the main frame, and includes a rotating roller structure that is in contact with the auxiliary guide rail in the process of moving the carrier,

The rotary roller structure,

a horizontal arm installed in a horizontal direction on a rotating shaft protruding outward from the rear of the carrier;

a left horizontal guide roller and a right horizontal guide roller rotatably provided on the left and right sides of both ends of the horizontal arm;

a vertical arm installed on the rotation shaft to be perpendicular to the horizontal arm;

It includes an upper vertical guide roller and a lower vertical guide roller rotatably provided on the upper and lower ends of the vertical arm, respectively,

The auxiliary guide rail is

When the carrier moves the upper curved guide rail, the upper first horizontal guide track and the upper second horizontal guide track for guiding the left horizontal guide roller and the right horizontal guide roller, respectively, and the upper side for guiding the upper vertical guide roller, respectively a vertical roller guide track; a lower first horizontal guide track and a lower second horizontal guide track for guiding the left horizontal guide roller and the right horizontal guide roller respectively when the carrier moves the lower curved guide rail of the chain; It is characterized in that it consists of a lower vertical roller guide track that guides the vertical guide rollers by contacting them at the same time,

The lift device further comprises a conveying conveyor that is fastened to the main body and selectively discharges the cargo transported by the carrier,

The transfer conveyor unit,

a fastening frame fastened to the body;

a discharge roller unit installed on one side of the fastening frame; and

and a tilting unit installed at a position where the fastening frame and the discharge roller are connected, and installed to adjust an angle with the discharge roller.

According to one aspect of the present invention described above, since a plurality of carriers are installed in the body, a plurality of cargoes can be transported at a time, thereby improving the transport speed, and occupying less space compared to the conventional spiral-type or inclined-type lift device. It can transport cargo efficiently even in a narrow space.

In addition, it is possible to prevent the cargo loaded on the support frame from being separated from the transfer process by always maintaining the support frame in a horizontal state when the carrier travels the curved section of the body in the process of transporting the cargo in the vertical direction.

In addition, it is possible to selectively discharge the cargo transported in circulation along the main body, and by reducing the impact generated in the transport process, transport efficiency can be improved.

1 is a view showing a schematic configuration of a lift apparatus according to an embodiment of the present invention.
2 to 4 are views showing a specific configuration of the main body of FIG. 1 .
5 and 6 are views showing a detailed configuration of the carrier of FIG.
7 and 8 are diagrams for explaining a specific operation principle of the lift device of FIG. 1 .
9 and 10 are views illustrating a transfer conveyor installed in a lift device.
11 and 12 are views illustrating an impact damping unit installed under a support member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0023] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a view showing a schematic configuration of a lift apparatus according to an embodiment of the present invention.

The lift device 1 according to an embodiment of the present invention is a device for transporting cargo in a vertical direction, and is fastened to the main body 100 and the main body 100 on which the guide rail 115 is formed, the guide rail 115 . It includes a carrier 200 for transporting cargo while moving along.

The body 100 includes a housing 110 , an upper wheel 120 , a lower wheel 130 , a chain 140 , and a support member 150 .

The housing 110 is a member defining the overall shape of the main body 100, and is provided in a rectangular parallelepiped shape as shown, and the upper and lower wheels 120 and 130 and the caterpillar chain installed therein with the central region open. 140 is exposed to the outside through the open central region. The outer surface of the front part and the front surfaces of the upper and lower wheels 120 and 130 are arranged on the same plane, and the inner surface of the front part and the rear surfaces of the upper and lower wheels 120 and 130 are also arranged on the same plane.

Accordingly, the front portion and the inner and outer surfaces of the upper and lower wheels 120 and 130 are disposed on the same plane to form a guide surface for guiding the trolley support means to make rolling contact when the carrier 200 orbits. do. In this way, since the guide surface for guiding the carrier support means can be formed without providing a separate component, the structure can be simplified.

In addition, the housing 110 has curved guide rails 115a and 115b formed at upper and lower portions, a straight guide rail 115c is formed between a pair of curved guide rails, and the curved guide rail 115a , 115b) on the inside of the auxiliary guide rail 117 is formed.

The upper wheel 120 is installed on the upper curved guide rail 115a side, toothed gears are formed along the circumferential direction, and the lower wheel 130 is installed on the lower curved guide rail 115b side, in the circumferential direction. It is a disk-shaped member along which a toothed gear is formed.

The chain 140 is fastened to the upper wheel and the lower wheel and is formed in the main body 100 in the shape of an elongated ellipse, and the carrier 200, which will be described later, moves in a state fastened to the chain 140, so that the carrier 200 ) moves in the form of circulating a closed loop along the shape of the chain 140 .

The support member 150 is formed at the lower end of the housing to support the housing from the ground.

The support member 150 is provided with means for preventing the cargo loaded on the carrier 200 from falling off in the transport process by absorbing the shock applied to the body 100 during the transport process, and such a support member 150 The specific structure and function of the will be described later.

The carrier 200 is a member for transporting the seated cargo in the upper or lower direction on which the cargo is substantially seated, the body frame 210 of a rectangular parallelepiped shape, and a rotation shaft formed through the front and rear portions of the body frame ( 220), is fastened to one end of the rotation shaft 220 and is formed on the front side of the body frame 210, a support frame 230 on which cargo is seated, is installed on the side of the body frame 210, and the curved shape A plurality of support rollers 211 that are fastened to the guide rail and the straight guide rail and move along the curved guide rail and the straight guide rail, and the other end of the rotation shaft are fastened to the rear surface of the body frame, and the carrier It includes a rotating roller structure 240 in contact with the auxiliary guide rail in the course of the movement.

In the illustrated embodiment, it is illustrated that one carrier 200 is provided in the main body 100 for convenience of explanation, but is not limited thereto, and a plurality of carriers 200 are installed at predetermined intervals along the chain. It is characterized in that it can transport multiple cargoes at the same time.

The rotating roller structure includes a horizontal arm 241 installed in the horizontal direction on a rotation shaft 220 protruding outward from the rear of the carrier 200, and a left side rotatably provided on both ends of the horizontal arm, left and right, respectively. A horizontal guide roller 242 and a right horizontal guide roller 243, a vertical arm 244 installed on the rotation shaft to be perpendicular to the horizontal arm, and an upper vertical guide rotatably provided at upper and lower ends of the vertical arm, respectively It is composed of a roller 245 and a lower vertical guide roller 246 .

At this time, the auxiliary guide rail 117 is installed in each of the upper curved section and the lower curved section, and when the carrier moves the curved guide rail, the first horizontal guide roller and the right horizontal guide roller are guided respectively. Consists of a horizontal guide track 117a and a second horizontal guide track 117b, and a vertical roller guide track 117c for guiding the upper vertical guide roller, respectively.

And a vertical guide plate is installed on the same plane as the front part to guide one side of the support roller 211 installed on the body frame 210 in the central region of the front part of the housing, inside the left and right straight sections of the chain 140 .

The caterpillar chain 140 installed along the circumference of the upper wheel 120 and the lower wheel 130 is disposed to correspond to the constituent parts of the front part, respectively, and is a left straight section, an upper curved section, a right straight section, and a lower curved section. It forms an endless orbit including

The carrier 200 is connected to a part of the chain 140 , and as the chain 140 moves in an endless orbit, the carrier 200 cyclically moves along the chain 140 .

When the carrier 200 is moved in a caterpillar type by the chain 140, the carrier 200 is moved with respect to the housing 100 in the front-rear and left-right directions without moving the carrier 200 in the housing 100. A support roller 211 for supporting the front portion in the front-rear direction and the left-right direction is provided.

The support roller 211 is a front and rear support roller for guiding the movement of the carrier 200 and suppressing the forward and backward flow of the trolley by rolling while simultaneously contacting both sides of the front and rear surfaces of the housing 110 . It consists of a means and a left and right support roller means for restricting the flow in the left and right width direction of the carrier 200 to support the carrier 200 to move orbit without flowing in the left and right width direction.

The front and rear support roller means consists of two pairs of front support rollers and rear support rollers. The front support roller is disposed on the front surface of the front portion of the housing 100 so as to move while in rolling contact with the front surface of the front surface of the housing 100 and the front and rear wheels 120 and 130 . The rear support roller is disposed at the rear of the front portion of the housing 100 so as to move while rolling contact between the rear surface of the front surface of the housing 100 and the rear surfaces of the front and rear wheels 120 and 130 .

In addition, the rear support roller and the front support roller are rotatably installed at both ends of the roller shaft formed on the side surface of the body frame 210 of the carrier 200 .

The left and right support roller means move in rolling contact along the front end surfaces of left and right guide plates (not shown) extending parallel to the front surface of the housing 100 from the inner surface of the left and right side surfaces of the housing 100 toward the inside of the casing. Consists of a support roller, the left and right support rollers are rotatably installed inside the body of the carrier (200).

That is, when the carrier 200 moves upward or downward along the left vertical movement path, the left and right support rollers are in rolling contact with the left guide plate while in rolling contact, and stably guide the carrier 200 in the left and right directions without shaking. Conversely, when the carrier 200 moves upward or downward along the right vertical movement path, the left and right support rollers come into rolling contact with the right guide plate and stably guide the carrier 200 in the left and right directions without shaking.

The carrier 200 is provided with a support frame 230 for loading and carrying articles. The support frame 230 transfers the mounted article from the lower position to the upper position by mounting the article on the upper surface and moving together with the carrier 200 .

As shown in FIGS. 5 and 6 , the support frame 230 passes through the carrier 200 and is supported by a bushing and is fixed to the rotating shaft 220 that rotates relatively with respect to the carrier 200 .

The present invention includes an article support posture maintaining means for always maintaining the posture of the support frame 230 installed on the carrier 200 horizontally regardless of the position of the carrier 200 .

To this end, the support frame 230 is fixed on the rotation shaft 220 rotatable relative to the carrier 200 and is rotatably installed on the carrier 200, and by the article support posture maintaining means, the carrier 200 ) keeps the posture of the support frame 230 horizontal even when turning while moving along the curved movement sections 232 and 234 to prevent the article mounted on the article support 40 from falling.

The article support posture maintaining means includes a rotating roller structure for guiding while maintaining the horizontal posture of the support frame 230, and a guide track for guiding the rotating roller structure.

The rotary roller structure rotates on the left and right sides of the horizontal arm 241 installed in the horizontal direction on the rotation shaft 220 protruding outward from the rear of the carrier 200 , and both ends of the horizontal arm 241 , respectively. A left horizontal guide roller 242 and a right horizontal guide roller 243 provided as possible, a vertical arm 244 installed on the rotation shaft 220 and perpendicular to the horizontal arm 241, and the vertical arm 244 ) consists of an upper vertical guide roller 245 and a lower vertical guide roller 246 rotatably provided on the upper and lower ends, respectively.

According to this configuration, as shown in FIG. 8 , when the carrier 200 moves along the upper curved section 232 , the body of the carrier 200 pivots about the rotating shaft 220 , but the rotating shaft 220 ), the left horizontal guide roller 242 provided at the left end of the horizontal arm 241 installed in the horizontal direction is supported on the upper first horizontal guide track 117a, and at the same time is fixed in the vertical direction to the rotation shaft 220 at the same time. Since the upper vertical guide roller 245 provided at the upper tip of the vertical arm 73 is supported by the upper vertical roller guide track 117c, the rotation shaft 220 of the trolley moves without rotation, and accordingly, the rotation shaft 220 ), the support frame 230 connected to the top is moved while maintaining the posture horizontally.

In addition, as shown in FIG. 7 , when the carrier 200 moves along the lower curve section, as when moving along the upper curve section described above, the body frame 210 of the carrier 200 rotates around the axis of rotation 220 . However, the right horizontal guide roller 243 provided at the right end of the horizontal arm 241 installed in the horizontal direction of the rotary shaft 220 is supported on the lower first horizontal guide track, and at the same time perpendicular to the rotary shaft 220 Since the lower vertical guide roller 245 provided at the lower tip of the vertical arm 244 fixed in the direction is supported by the lower vertical roller guide track, the rotation shaft 220 of the trolley moves without rotation, and accordingly, the rotation shaft ( The support frame 230 connected on the 220 is also moved while maintaining the posture horizontally even in the lower curved section.

In some other embodiments, the lift apparatus 1 according to the present invention may further include a transfer conveyor for discharging and transferring the cargo transported in the vertical direction by the main body 100 and the carrier 200 in a predetermined direction. In this regard, it will be described with reference to FIGS. 9 and 10 together.

9 and 10 are views showing an example of a transfer conveyor.

Specifically, the transport conveyor 300 is installed at a position where the fastening frame 310 fastened to the main body, the discharge roller part 320 installed on one side of the fastening frame, and the fastening frame and the discharge roller part are connected, It includes a tilting unit 330 installed to adjust the angle with the discharge roller.

In the transport conveyor 300 having such a configuration, when the cargo moves near the discharge roller unit 320 to be discharged, the tilting unit 330 is spread out in a direction extending from the discharge roller unit 320 to the carrier 200. The loaded cargo may be seated on the tilting unit 330 , and accordingly, the cargo seated on the tilting unit 330 moves along the discharge roller 320 to discharge the cargo.

On the other hand, when it is desired not to discharge the cargo, the tilting member 330 is rotated to form a right angle with the discharge roller part 320 so that the cargo loaded on the carrier 200 passes the discharge roller part 320 . is selectively released.

On the other hand, as described above, the support member 150 for supporting the housing 110 from the ground absorbs the shock applied to the body 100 during the transport process, so that the cargo loaded on the carrier 200 is dropped in the transport process. Means to prevent this may be provided.

Specifically, as shown in FIGS. 11 and 12 , the impact damping unit 160 may be installed at a predetermined interval on the lower surface of the support member 150 , and the impact damping unit 160 is the carrier 200 . By absorbing the shock generated during movement and firmly supporting the housing 110 from the ground, it is possible to prevent the cargo loaded on the carrier 200 from falling off during the transport process.

The impact damping unit 160 includes the installation grooves 161 and 162 formed at the lower end of the support member 150 , the support pillar 163 inserted and installed into the installation grooves 161 and 162 , and the support pillar 163 . It is formed at the bottom and includes a support head 164, a horizontal elastic member 165, and a vertical elastic member 166 for supporting the support pillar 163 from the ground.

The support pillar 163 is formed to extend in the vertical direction and is inserted into the installation grooves 161. 162 so that the side and lower portions are supported by the horizontal elastic member and the vertical elastic member.

The installation groove is formed on the lower surface of the support member 150 and includes a lower installation groove 161 having a trapezoidal cross-section and an upper installation groove 162 having a cylindrical shape formed on the upper portion of the lower installation groove 161. is composed

In an embodiment, a vertical through hole 1631 and an arcuate tunnel 1632 may be formed in the support pillar 163 . The vertical through-hole 1631 is formed to extend from the upper side of the support head 164 to the arcuate tunnel 1632 so that external air can be introduced.

The arcuate tunnel 1632 is formed by penetrating the support column 163 corresponding to the shape of the arcuate support 167 so that external air can be supplied to the vertical through-hole 1631 while the arcuate support 167 is seated.

The support head 164 is installed on the lower side of the support pillar 163, is formed in the form of a sucker and is attached to the ground. A plurality of horizontal elastic members are installed to be spaced apart from each other along a space between the support pillar 163 and the lower installation groove 161 to support the support pillar 163 in the installation groove by using an elastic force.

The vertical elastic member is installed inside the upper installation groove 162 to support the upper portion of the support post 163 inserted into the installation groove.

The shock damping unit 160 having the configuration as described above further includes an arcuate support 167, and the arcuate support 167 is formed in an arc shape by being rounded in an upward direction to cross the lower installation groove 161. It is installed so as to be built so that it is seated in the arcuate tunnel 1632 , and is inserted through the arcuate tunnel 1632 of the support column 163 .

In one embodiment, the arcuate support 167 is, when the support column 163 rotates in a state in close contact with the lower surface of the arcuate tunnel 1632, one side and It is possible to form an air inlet hole (h) penetrating in the vertical direction from the other side.

The shock damping unit 160 having the above-described configuration is, when the via hole drilling device is seated, the horizontal elastic member and the vertical elastic member installed inside the installation groove 620 to buffer the impact caused by the seating of the via hole drilling device. When the arcuate support 167 is moved in the left or right direction by an external impact, the air inlet hole (h) is located in the vertical through hole 1631 . In this case, the air that has been gradually introduced into the support head 164 in the course of use is introduced into the air inlet hole (h) through the vertical through hole 1631, and the air introduced into the air inlet hole (h) is in an arcuate tunnel ( 1632) is discharged to the outside to continuously maintain the vacuum state of the support head 164. Accordingly, the adhesion between the support head 164 and the ground is further improved, and as a result, the support member 150 has the effect of more firmly fixing the body 100 from the ground.

Although the above has been described with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. will be able

1: Lift device
100: body
200: carrier
300: transfer conveyor

Claims (2)

In the lift device for transporting cargo in a vertical direction,
The lift device is
a body on which a guide rail is formed; and
It is fastened to the main body and includes a carrier for transporting cargo while moving along the guide rail,
The body is
a housing in which curved guide rails are formed on upper and lower portions, a straight guide rail is formed between a pair of curved guide rails, and an auxiliary guide rail is formed inside the curved guide rail;
a disk-shaped upper wheel installed on the upper curved guide rail side and having a toothed gear formed along the circumferential direction;
a disk-shaped lower wheel installed on the lower curved guide rail side and having toothed gears formed along the circumferential direction;
a chain fastened to the upper wheel and the lower wheel;
and a support member formed at the lower end of the housing to support the housing from the ground,
The carrier is
a rectangular parallelepiped body frame;
a rotating shaft formed through the front and rear portions of the body frame;
a support frame fastened to one end of the rotation shaft and formed on the front surface of the body frame, on which cargo is seated;
a plurality of support rollers installed on the side surface of the body frame and fastened to the curved guide rail and the straight guide rail to move along the curved guide rail and the straight guide rail; and
It is fastened to the other end of the rotating shaft and is formed on the rear surface of the main frame, and includes a rotating roller structure that is in contact with the auxiliary guide rail in the process of moving the carrier,
The rotary roller structure,
a horizontal arm installed in a horizontal direction on a rotating shaft protruding outward from the rear of the carrier;
a left horizontal guide roller and a right horizontal guide roller rotatably provided on the left and right sides of both ends of the horizontal arm;
a vertical arm installed on the rotation shaft to be perpendicular to the horizontal arm;
It includes an upper vertical guide roller and a lower vertical guide roller rotatably provided on the upper and lower ends of the vertical arm, respectively,
The auxiliary guide rail is
When the carrier moves the upper curved guide rail, the upper first horizontal guide track and the upper second horizontal guide track for guiding the left horizontal guide roller and the right horizontal guide roller, respectively, and the upper side for guiding the upper vertical guide roller, respectively a vertical roller guide track; a lower first horizontal guide track and a lower second horizontal guide track for guiding the left horizontal guide roller and the right horizontal guide roller respectively when the carrier moves the lower curved guide rail of the chain; It is characterized in that it consists of a lower vertical roller guide track that guides the vertical guide rollers by contacting them at the same time,
The lift device further comprises a conveying conveyor that is fastened to the main body and selectively discharges the cargo transported by the carrier,
The transfer conveyor unit,
a fastening frame fastened to the body;
a discharge roller unit installed on one side of the fastening frame; and
and a tilting unit installed at a position where the fastening frame and the discharge roller part are connected, and installed to adjust an angle with the discharge roller part,
An impact damping part is installed on the lower surface of the support member to absorb the impact applied to the main body during the transport process and prevent the cargo loaded on the carrier from falling off during the transport process,
The shock damping unit,
a support column inserted and installed in an installation groove formed at a lower end of the support member;
a support head formed at a lower end of the support column to support the support column from the ground; and
and a vertical elastic member installed inside the installation groove to support the upper portion of the support column inserted into the installation groove,
The installation groove is
It is formed on the lower surface of the support member and is composed of a lower installation groove having a trapezoidal cross-section, and a cylindrical upper installation groove formed in an upper portion of the lower installation groove,
The shock damping unit,
an arcuate support that is penetrated and fastened to the support column; and
A plurality of horizontal elastic members installed spaced apart from each other along the space between the support pillar and the lower installation groove to support the side portion of the support pillar in the installation groove by using an elastic force,
The support pillar is formed extending in the vertical direction and inserted into the installation groove, the side and lower sides are supported by the horizontal elastic member and the vertical elastic member, and a vertical through hole and an arcuate tunnel are formed therein,
The vertical through-hole is formed extending from the upper side of the support head to the arcuate tunnel so that external air can be introduced,
The arcuate tunnel is formed through a support column corresponding to the shape of the arcuate support so that the arcuate support is seated,
The arcuate support is bent in an upward direction to form an arch, is installed to cross the lower installation groove, is seated in the arcuate tunnel, and is inserted through the arcuate tunnel of the support column,
The arcuate support is in close contact with the lower surface of the arcuate tunnel, an air inlet hole that is formed through one side and the other side in the vertical direction to pass air through the vertical through-hole from the lower side of the support column is formed , when the arcuate support is moved in the left or right direction by an external impact, the air inlet hole is located in the vertical through hole, so that the air flowing into the support head is introduced into the air inlet hole through the vertical through hole, The air introduced into the air inlet hole is discharged to the outside through the arcuate tunnel, characterized in that the vacuum state between the support head and the ground is continuously maintained.
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