KR20210082760A - Fall prevention lift - Google Patents

Abstract

The present invention relates to a fall prevention lift, which facilitates installation when the disabled or the elderly use the pedestrian overpass on a road or the subway, which is one of public transportation, and is stopped at a correct position without shaking due to lifting and lowering, thereby being used safely and conveniently. According to the present invention, the fall prevention lift comprises: a body frame installed to form a hoistway on the central side on a base plate; a driving unit connected to a drive shaft of a double-acting drive motor provided on the upper part of the main frame, and a drive screw installed to be connected to a reducer by a first coupling and rotate on both sides in the hoistway by the reducer by the second coupling to rotate the drive screw; a mounting frame in which nut housings are mounted on both sides of the upper and lower ends on the drive screw; a lift on which an opening/closing door is installed and mounted on the front surface of the mounting frame; and a fall prevention unit installed on the lower side of the main frame to support the lift by using an elastic force when the lift falls down and to attenuate shock or vibration generated by a collision with the lift by using an elastic force.

Description

FALL PREVENTION LIFT

The present invention relates to a fall-prevention elevator, and more particularly, when the disabled or the elderly use the subway, which is one of the pedestrian overpasses or public transportation on the road, the installation work is easily performed, and there is no shaking due to the lifting and stopping at the correct position. It relates to a fall-prevention elevator that has been implemented so that it can be used safely and conveniently.

In general, in order to use the pedestrian overpass on the road or to use the subway, which is one of public transportation, you have to go up or down using the stairs at a certain height or depth from the ground, such as a pedestrian overpass or subway platform. However, there was a problem that the disabled or the elderly could not use the pedestrian overpass or subway without a helper beside them.

In order to solve this problem, a plate-type lift that can accommodate wheelchairs for the disabled has been installed in recent years. It is driven on the guide rail after installing a guide rail on the side frame of a sidewalk or on one wall of a subway stairway. By installing a transfer plate that folds to reciprocate by means of a means, it was possible to mount a wheelchair for the disabled and move it.

However, in the case of such a lift, it cannot be used by the disabled alone, but it is cumbersome to use with a separate assistant, and the transport plate on which the wheelchair is mounted is narrow, so the mounted state is unstable, and there is a small impact or minor damage during transport. As a result, there was always a risk of the wheelchair being separated from the transfer plate and causing a major accident.

In order to solve this problem, in recent years, elevators, etc. applied to buildings are installed and used from the ground to the upper part of the pedestrian overpass or subway platform so that not only the disabled but also the elderly can use it more safely.

However, in the case of elevators installed as pedestrian overpasses or subway platforms as described above, most of them are installed by applying the wire rope method installed in buildings as they are, so the installation work is complicated and the installation cost is low. In addition to the high problem, it had the biggest problem that the occupants were anxious because a lot of shaking occurred during the elevator.

In addition, there was a problem that the elevator was not stopped in the correct position according to the wire rope method, and there was a problem that the disabled or the elderly were reluctant to use it because there is a risk of many accidents.

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 No. 10-2054600 Korean Patent Registration No. 10-2030514

One aspect of the present invention is that when the disabled or the elderly use the subway, which is one of the pedestrian overpasses or public transportation on the road, the installation work is easily performed, there is no shaking due to the lifting and lowering, and it can be used safely and conveniently by stopping at the correct position. Provide a fall-prevention elevator that is implemented so that

In addition, in the case where the elevator does not withstand the load of the loaded personnel or luggage and falls, or the elevator descends due to damage to the mounting frame to which the elevator is fastened, a fall implemented to support the elevator using elastic force. Anti-elevator is provided.

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.

In the fall prevention elevator according to an embodiment of the present invention, the fall prevention elevator is installed from the ground to a pedestrian overpass or subway platform on a road, the body frame is installed to form a hoistway to the center side on the base plate; The drive shaft of the double-acting drive motor provided on the upper part of the body frame is connected to the reducer by a first coupling, and is connected to a drive screw installed to rotate on both sides in the hoistway by the reducer and the second coupling. a driving unit to rotate; a mounting frame in which nut housings are mounted on both sides of upper and lower ends on the drive screw; a lift on which a door that opens and closes in front of the mounting frame is installed and mounted; and a fall prevention unit installed on the lower side of the main frame to support the elevator by using an elastic force when the elevator falls down, and to attenuate shock or vibration generated by collision with the elevator by using an elastic force. do.

In one embodiment, the fall prevention part is formed in the form of a flat plate, the upper support plate on which the elevator is seated when the elevator falls; a lower support plate formed in a shape corresponding to the shape of the upper support plate and spaced apart from the lower side of the upper support plate; an elastic support installed between each corner of the upper support plate and the lower support plate, and supporting the upper support plate seated on the upper side by using an elastic force; and two buffer supports installed on the upper side of the base plate to support the lower one side and the other side of the lower support plate, and to buffer vibration or shock transmitted from the lower support plate.

In one embodiment, the buffer support, the base plate is fixedly installed on the upper surface of the base plate; a support column extending upwardly from the upper portion of the base plate in the form of a square column; And it is formed in the form of a hexagonal pillar, is inserted and seated in the vertical direction at the top of the support pillar, the pillar support for supporting the lower support plate is seated on the upper side by using an elastic force; may include.

In one embodiment, the pillar support portion is formed in a flat plate shape to support the lower support plate; a hexagonal frame extending downward from the bottom of the support plate in a hexagonal column shape; and a braking rack gear formed in the vertical direction along at least one of the six surfaces of the hexagonal frame.

In one embodiment, the support pillar, a pillar body extending upwardly from the upper portion of the base plate in the form of a square pillar; a support groove formed in a shape corresponding to the shape of the hexagonal frame on the upper portion of the pillar body so that the hexagonal frame can be inserted; a braking unit installed on one side of the support groove opposite to the braking rack gear and in close contact with the braking rack gear as the hexagonal frame descends to brake the hexagonal pillar; and the hexagonal frame seated on the lower side of the support groove to support the hexagonal frame seated on its upper side by using an elastic force, and as the hexagonal frame descends and compresses, the elasticity for supplying the fluid contained in the internal space to the braking unit It may include a pedestal;

In one embodiment, the braking unit may include: a seating plate seated in a braking groove formed on one side of the support groove opposite to the braking rack gear; a forward cylinder installed on the rear surface of the seating plate, receiving the fluid supplied from the elastic pedestal, and advancing the seating plate in the hexagonal frame direction; It is connected and installed on the front surface of the seating plate, and a close contact leg gear having a shape corresponding to the braking rack gear is formed on the front surface opposite to the braking rack gear, and as the seating plate advances, it is in close contact with the braking rack gear. a brake plate that brakes the hexagonal frame from lowering any further; a sliding groove extending vertically along the front surface of the seating plate; an elastic body installed under the sliding groove; and a sliding bar installed on the rear surface of the braking plate opposite to the sliding groove, seated in the sliding groove, slid in the vertical direction, and supported by the elastic body.

In one embodiment, the elastic pedestal, an upper plate for supporting the hexagonal frame seated on the upper side; a lower plate installed to be spaced apart from the lower side of the upper plate and seated on the lower side of the support groove; at least one support spring installed between the upper plate and the lower plate to support the upper plate from the upper side of the lower plate by using an elastic force; a fluid tank installed between the upper plate and the lower plate and compressed as the upper plate descends to supply a fluid accommodated in the internal space; and a fluid supply pipe extending from the fluid tank to the advancing cylinder and transferring the fluid supplied from the fluid tank to the advancing cylinder.

In one embodiment, the elastic support, the upper plate for supporting the upper support plate; a lower plate seated on the lower support plate; at least one gap support part installed along between the upper plate and the lower plate to support the gap between the upper plate and the lower plate by using an elastic force; It is installed between the upper plate and the lower plate to prevent the gap between the upper plate and the lower plate from widening, and when the upper plate and the lower plate are compressed in a direction closer to each other, the fluid contained in the internal space is removed. a fluid supply ring for supplying; and a symmetrical structure on the lower surface of the upper plate and the upper surface of the lower plate on which the gap support part is seated so that the upper or lower part of the gap support part is installed, and when the fluid is supplied from the fluid supply ring, it is extended and the It may include a; elastic control cylinder for compressing the gap support to increase the elastic force of the gap support.

In one embodiment, the fluid supply ring, a first square ring formed in the form of a square ring; a second square ring formed in the form of a square ring and cross-connected to the first square ring; a first support pipe extending from the upper part of the first square ring to the upper plate and having a fluid movement passage for transferring the fluid along the inner side; a second support pipe extending from the lower part of the second square ring to the lower plate and having a fluid movement passage for transferring the fluid along the inner side; The fluid is accommodated in the inner space, is seated in the inner space of the first square ring, and is compressed by the upper surface of the second square ring as the upper plate and the lower plate come closer to each other and accommodated in the inner space. a first fluid pouch for supplying a fluid to the elastic control cylinder through a fluid movement passage of the first support tube; And the fluid is accommodated in the inner space, is seated in the inner space of the second square ring, and is compressed by the lower surface of the first square ring as the upper plate and the lower plate come closer to each other and accommodated in the inner space. It may include; a second fluid pouch for supplying the existing fluid to the elastic control cylinder through the fluid passage of the second support tube.

In one embodiment, the elastic control cylinder is installed on the lower surface of the upper plate or the upper surface of the lower plate, the housing forming an inner space; and a seating plunger that is seated on the housing, and that is pushed out from the housing by the pressure of the fluid as the fluid is supplied to the housing and contracts the gap support installed on the outer surface.

According to one aspect of the present invention described above, when the disabled or the elderly use the subway, which is one of the pedestrian overpasses or public transportation on the road, the installation work is made easily, and as the lifting means of the elevator is used with a drive screw and a nut housing, Not only does it not shake, it stops at the correct position, so it can be used safely and conveniently, and by providing a fall-prevention elevator in which the drive screws on both sides rotate at a constant speed by one drive motor, the lift is not unstable and accurate. It is possible to secure maximum safety for users by making safe lifting and lowering, and to shorten the construction period due to the simple structure, as well as to reduce the installation cost.

In addition, in the case where the elevator falls without bearing the load of the loaded personnel or luggage, or the elevator descends due to damage to the mounting frame to which the elevator is fastened, the elevator supports the elevator by using elastic force to get on the elevator. It is possible to prevent accidents such as accidents caused by the impact of falling passengers.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range apparent to those skilled in the art from the description below.

1 is a view showing a schematic configuration of a fall prevention elevator according to an embodiment of the present invention.
FIG. 2 is a view showing the fall arrester of FIG. 1 .
Figure 3 is a view showing the buffer support of Figure 2;
4 and 5 are views showing the support column of FIG. 3 .
6 is a view showing an installation structure of the brake unit of FIG. 4 .
FIG. 7 is a view showing the braking unit of FIG. 4 .
FIG. 8 is a view showing the elastic support of FIG. 2 .
FIG. 9 is a view showing the fluid supply ring of FIG. 8 .
FIG. 10 is a view showing the elastic adjustment cylinder of FIG. 8 .
11 is a view for explaining the contraction direction of the gap support portion by the elastic adjustment cylinder of FIG. 10 .

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 fall prevention elevator according to an embodiment of the present invention.

Referring to FIG. 1 , the fall prevention elevator 10 according to an embodiment of the present invention is manufactured for a low-rise installation from the ground to a pedestrian overpass or subway platform on a road, and a body frame 100, a driving unit 200 ), including a mounting frame 400 , a lift 500 and a fall prevention unit 600 .

The body frame 100 is installed so that the hoisting platform 500 is connected to the center side on the base plate B to form a hoistway 150 that is a space for hoisting or descending.

The driving unit 200 is connected to the reducer 240 by the driving shaft and the first coupling 220a of the double acting driving motor 220 provided on the upper portion of the body frame 100, and the reducer and the second coupling ( 240a) is connected to the driving screw 300 installed to rotate on both sides in the hoistway and rotates.

The mounting frame 400 is installed on the lower side of the body frame 100 to support the body frame 100 , and nut housings 420 are mounted on both upper and lower ends on the drive screw 300 .

The hoisting platform 500 is mounted with a door that opens and closes in front of the mounting frame 400 , and ascends or descends along the hoistway 150 .

The fall prevention unit 600 is installed in the lower space of the body frame 100 to support the elevator 500 by using elastic force when the elevator 500 falls, and the impact generated according to the collision with the elevator 500 . Or vibration is attenuated using elastic force.

The fall prevention elevator 10 according to an embodiment of the present invention having the configuration as described above is easy to install when the disabled or the elderly use the subway, which is one of the pedestrian overpasses or public transportation on the road, and the elevator goes up and down. By using the drive screw and nut housing as the means, there is no shaking due to lifting and lowering, and it is stopped at the correct position, making it safer and more convenient to use, as well as a fall in which the drive screws on both sides are rotated at a constant speed by one drive motor. By providing the anti-elevator, it is possible to ensure the maximum safety for the user by providing the elevator without unstable and accurate and safe lifting, and it is possible to shorten the construction period due to the simple structure and also reduce the installation cost.

FIG. 2 is a view showing the fall arrester of FIG. 1 .

Referring to FIG. 2 , the fall prevention unit 600 includes an upper support plate 610 , a lower support plate 620 , an elastic support 700 , and two cushioning supports 800 .

The upper support plate 610 is formed in the form of a flat plate, and when the elevator 500 falls, the elevator 500 is seated.

The lower support plate 620 is formed in a shape corresponding to the shape of the upper support plate 610 and is installed to be spaced apart from the lower side of the upper support plate 610 .

The elastic support 700 is installed between each corner of the upper support plate 610 and the lower support plate 620, and supports the upper support plate 610 seated on the upper side by using an elastic force.

The buffer support 800 is installed on the upper surface of the base plate (B) to support the lower one side and the other side of the lower support plate 620 , and buffers vibrations or shocks transmitted from the lower support plate 620 .

The fall prevention unit 600 having the above-described configuration may fall without withstanding the load such as the number of people or luggage on which the elevator 500 is loaded, or damage the mounting frame 400 to which the elevator 500 is fastened. Accordingly, in the case where the elevator 500 descends, by supporting the elevator 500 using elastic force, a passenger riding on the elevator 500 may be prevented from being in a safety accident due to an impact caused by a fall. .

Figure 3 is a view showing the buffer support of Figure 2;

Referring to FIG. 3 , the buffer support 800 includes a base plate 810 , a support column 820 , and a column support 830 .

The base plate 810 is fixedly installed on the upper side of the base plate B, and the support pillar 820 extends from the upper part.

The support pillar 820 is formed to extend upwardly from the top of the base plate 810 in the shape of a square pillar, and a support groove 822 for inserting the pillar support 830 is formed thereon.

The pillar support 830 is formed in the form of a hexagonal pillar, and is inserted and seated in the vertical direction through the support groove 822 formed in the upper portion of the support pillar 820 , and the upper side using the elastic force by the elastic support 824 . Supports the lower support plate 620 seated on the.

In one embodiment, the pillar support 830 may include a support plate 831 , a hexagonal frame 832 , and a braking rack gear 833 .

The support plate 831 is formed in a flat plate shape to support the lower support plate 620 , and a hexagonal frame 832 is formed extending from the lower surface.

The hexagonal frame 832 is formed to extend downwardly from the bottom of the support plate 831 in a hexagonal column shape, and the braking rack gear 833 is formed on at least one of six surfaces.

The braking rack gear 833 is formed in the vertical direction along at least one of the six surfaces of the hexagonal frame 832 , and prevents the hexagonal frame 832 from descending as the braking plate 8233 is in close contact.

4 and 5 are views showing the support column of FIG. 3 .

4 and 5 , the support column 820 includes a column body 821 , a support groove 822 , a braking unit 823 , and an elastic pedestal 824 .

The column body 821 is formed to extend upwardly from the upper portion of the base plate 810 in the form of a square column, and a support groove 822 for inserting the hexagonal frame 832 is formed thereon.

The support groove 822 is formed in a shape corresponding to the shape of the hexagonal frame 832 on the upper portion of the column body 821 so that the hexagonal frame 832 can be inserted, and an elastic pedestal 824 is provided at the lower side of the groove. It is seated, and a braking unit 823 is formed on at least one side surface.

The braking unit 823 is installed on one side of the support groove 822 opposite to the braking rack gear 833, and is in close contact with the braking rack gear 833 as the hexagonal frame 832 descends to brake the hexagonal pillar. make it

That is, the braking unit 823, as shown in FIG. 6 , when the braking rack gear 833 is installed on three surfaces of the hexagonal frame 832, three pieces 823a, 823b, and 823c are installed in correspondence thereto. it can be

The elastic pedestal 824 is seated on the lower side of the support groove 822 to support the hexagonal frame 832 seated on its upper side by using an elastic force, and as the hexagonal frame 832 is lowered and compressed, in the inner space. The contained fluid is supplied to the braking unit 823 .

In one embodiment, the elastic pedestal 824 may include an upper plate 8241 , a lower plate 8242 , a support spring 8243 , a fluid tank 8244 , and a fluid supply pipe 8245 .

The upper plate 8241 is supported by a support spring 8243 and is installed to be spaced apart from the upper side of the lower plate 8242 , and supports the hexagonal frame 832 seated on the upper side, and as the hexagonal frame 832 descends, the lower plate It compresses the fluid tank 8244 installed between the 8242 and the .

The lower plate 8242 is installed spaced apart from the lower side of the upper plate 8241 and seated on the lower side of the support groove 822 , and a support spring 8243 and a fluid tank 8244 are installed between the upper plate 8241 and the upper plate 8241 . .

At least one support spring 8243 is installed between the upper plate 8241 and the lower plate 8242 to support the upper plate 8241 from the upper side of the lower plate 8242 by using an elastic force.

The fluid tank 8244 is installed between the upper plate 8241 and the lower plate 8242 , and is compressed as the upper plate 8241 descends and supplies the fluid accommodated in the internal space through the fluid supply pipe 8245 .

The fluid supply pipe 8245 extends from the fluid tank 8244 to the forward cylinder 8232 , and transfers the fluid supplied from the fluid tank 8244 to the forward cylinder 8232 .

FIG. 7 is a view showing the braking unit of FIG. 4 .

4 and 7 , the braking unit 823 includes a seating plate 8231 , a forward cylinder 8232 , a braking plate 8233 , a sliding groove 8234 , an elastic body 8235 and a sliding bar 8236 ). includes

The seating plate 8231 is seated in a braking groove 8221 formed on one side of the support groove 822 opposite to the braking rack gear 833, and is moved forward and backward by a forward cylinder 8232 installed on the rear surface. As it moves and moves forward, the brake plate 8233 connected and installed on the front side is brought into close contact with the brake rack gear 833 .

The forward cylinder 8232 is installed on the rear surface of the seating plate 8231, receives the fluid supplied from the elastic pedestal 824 through the fluid supply pipe 8237, and moves the seating plate 8231 to the hexagonal frame 832 direction. advances

The braking plate 8233 is connected to the front surface of the seating plate 8231 and forms a close contact leg gear G having a shape corresponding to the braking rack gear 833 on the front surface opposite to the braking rack gear 833, , as the seating plate 8231 advances, it is in close contact with the braking rack gear 833 to brake the hexagonal frame 832 from further lowering.

The sliding groove 8234 is formed to extend in the vertical direction along the front surface of the seating plate 8231 so that the sliding bar 8236 is seated and slides in the vertical direction, and an elastic body 8235 is installed at the lower side.

The elastic body 8235 is installed under the sliding groove 8234 to support the sliding bar 8236 seated in the sliding groove 8234 by using an elastic force.

The sliding bar 8236 is installed on the rear surface of the braking plate 8233 opposite to the sliding groove 8234 , is seated in the sliding groove 8234 , slides in the vertical direction, and is supported by the elastic body 8235 .

FIG. 8 is a view showing the elastic support of FIG. 2 .

Referring to FIG. 8 , the elastic support 700 includes an upper plate 710 , a lower plate 720 , a gap support 730 , a fluid supply ring 740 , and an elastic control cylinder 750 .

The upper plate 710 is installed to be spaced apart from the upper side of the lower plate 720 by the gap support 730 , and supports the upper support plate 610 using the elastic force by the gap support 730 .

The lower plate 720 is installed to be spaced apart from the lower side of the upper plate 710 by the gap support 730 , and is seated on the upper side of the lower support plate 620 .

The gap support part 730 is formed of an elastic material such as a spring, and at least one is installed along between the upper plate 710 and the lower plate 720 between the upper plate 710 and the lower plate 720 by using an elastic force. support the spacing of

The fluid supply ring 740 is installed between the upper plate 710 and the lower plate 720 to prevent the gap between the upper plate 710 and the lower plate 720 from being widened, and the upper plate 710 and the lower plate When the flat plate 720 is compressed in a direction closer to each other, the fluid L accommodated in the inner space is supplied to the elastic control cylinder 750 .

The elastic adjustment cylinder 750 is installed in a symmetrical structure on the lower surface of the upper plate 710 and the upper surface of the lower plate 720 on which the gap support 730 is seated, so that the upper or lower side of the gap support 730 is It is installed, and when the fluid is supplied from the fluid supply ring 740, it expands and compresses the gap support part 730 to increase the elastic force of the gap support part 730.

The elastic support 700 having the configuration as described above does not simply support an object using an elastic force, but the gap support 730 that forms an elastic force when vibration or shock is continuously increased according to this Compression increases the elastic force by the gap support 730 to prevent the gap between the upper plate 710 and the lower plate 720 from being further narrowed, thereby reducing vibration or shock more effectively.

FIG. 9 is a view showing the fluid supply ring of FIG. 8 .

Referring to FIG. 9 , the fluid supply ring 740 includes a first square ring 741 , a second square ring 742 , a first support tube 743 , a second support tube 744 , and a first fluid pouch. 745 and a second fluid pouch 746 .

The first square ring 741 is formed in the form of a square ring and is cross-connected as shown in FIG. 9 with the second square ring 742, the first support pipe 743 is installed on the upper side, the ring A first fluid pouch 745 is installed in the inner space of the

The second square ring 742 is formed in the form of a square ring, cross-connected with the first square ring 741, a second support pipe 744 is installed on the lower side, and the second in the inner space of the ring A fluid pouch 746 is installed.

The first support pipe 743 is formed to extend from the upper part of the first square ring 741 to the upper plate 710, and the fluid L supplied from the first fluid pouch 745 along the inner side is delivered. A moving passage is formed, and the fluid L is transferred to the elastic control cylinder 750 installed on the upper plate 710 .

The second support pipe 744 is formed to extend from the lower part of the second square ring 742 to the lower plate 720, and the fluid L supplied from the second fluid pouch 746 along the inner side is transmitted. A moving passage is formed, and the fluid L is transferred to the elastic control cylinder 750 installed on the lower plate 720 .

The first fluid pouch 745, the fluid is accommodated in the inner space, is seated in the inner space of the first square ring 741, as the upper plate 710 and the lower plate 720 get closer to each other, the second square The fluid compressed by the upper surface of the ring 742 and accommodated in the inner space is supplied to the elastic control cylinder 750 through the fluid movement passage of the first support pipe 743 .

The second fluid pouch 746, the fluid is accommodated in the inner space, is seated in the inner space of the second square ring 742, and as the upper plate 710 and the lower plate 720 come closer to each other, the first square The fluid compressed by the lower surface of the ring 741 and accommodated in the inner space is supplied to the elastic control cylinder 750 through the fluid movement passage of the second support pipe 744 .

FIG. 10 is a view showing the elastic adjustment cylinder of FIG. 8 .

Referring to FIG. 10 , the elastic adjustment cylinder 750 includes a housing 751 and a seating plunger 752 .

The housing 751 is installed on the lower surface of the upper plate 710 or the upper surface of the lower plate 720, forms an internal space for accommodating the fluid L, and the seating plunger 752 is connected and installed .

The seating plunger 752 is seated on the housing 751, and as the fluid L is supplied to the housing 751, it is pushed out from the housing 751 by the pressure of the fluid L and is installed on the outer surface. The support part 730 is contracted.

The elastic adjustment cylinder 750 having the above-described configuration is one such that the length of the gap support part 730 is t1 by not compressing the gap support part 730 in normal times, as shown in FIG. 11 (a). , as the upper plate 710 and the lower plate 720 are compressed, the gap support 730 is compressed by the fluid L supplied from the fluid supply ring 740 so that the length of the gap support 730 is t2 (t1) > t2) to increase the elastic force by the gap support 730 in response thereto.

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments pertain can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims described below rather than the above detailed description, and it should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: Fall protection elevator
100: body frame
200: drive unit
300: drive screw
400: mounting frame
500: elevator
600: fall arrest unit
700: elastic support
800: buffer support

Claims (10)

In the fall prevention elevator installed from the ground to the pedestrian overpass or subway platform on the road,
a body frame installed so as to form a hoistway toward the center of the base plate;
The drive shaft of the double-acting drive motor provided on the upper part of the body frame is connected to the reducer by a first coupling, and is connected to a drive screw installed to rotate on both sides in the hoistway by the reducer and the second coupling. a driving unit to rotate;
a mounting frame in which nut housings are mounted on both sides of the upper and lower ends on the drive screw;
a lift on which a door that opens and closes in front of the mounting frame is installed and mounted; and
A fall prevention unit installed on the lower side of the body frame to support the elevator by using an elastic force when the elevator falls down, and to attenuate shock or vibration generated by collision with the elevator by using an elastic force; including a , fall protection elevators.
According to claim 1, The fall prevention unit,
an upper support plate formed in the form of a flat plate to seat the elevator when the elevator falls;
a lower support plate formed in a shape corresponding to the shape of the upper support plate and spaced apart from the lower side of the upper support plate;
an elastic support installed between each corner of the upper support plate and the lower support plate, and supporting the upper support plate seated on the upper side by using an elastic force; and
Containing, a fall prevention elevator that is installed on the upper side of the base plate to support the lower one side and the other side of the lower support plate, and to buffer vibrations or shocks transmitted from the lower support plate.
According to claim 2, wherein the buffer support,
a base plate fixedly installed on an upper surface of the base plate;
a support column extending upwardly from the upper portion of the base plate in the form of a square column; and
Formed in the form of a hexagonal pillar, inserted and seated in the vertical direction at the top of the support pillar, and a pillar support for supporting the lower support plate seated on the upper side by using an elastic force; Containing, a fall prevention elevator.
According to claim 3, The pillar support portion,
a support plate formed in a flat plate shape to support the lower support plate;
a hexagonal frame extending downward from the bottom of the support plate in a hexagonal column shape; and
Containing, a fall prevention elevator comprising a; braking rack gear formed in the vertical direction along at least one of the six surfaces of the hexagonal frame.
According to claim 4, The support pillar,
a column body extending from an upper portion of the base plate to an upper side in a rectangular column shape;
a support groove formed in a shape corresponding to the shape of the hexagonal frame on the upper portion of the pillar body so that the hexagonal frame can be inserted;
a braking unit installed on one side of the support groove opposite to the braking rack gear and in close contact with the braking rack gear as the hexagonal frame descends to brake the hexagonal pillar; and
It is seated on the lower side of the support groove to support the hexagonal frame seated on its upper side by using an elastic force, and as the hexagonal frame descends and is compressed, an elastic pedestal for supplying the fluid contained in the internal space to the braking unit A fall protection elevator, including;
The method of claim 5, wherein the braking unit,
a seating plate seated in a braking groove formed on one side of the support groove opposite to the braking rack gear;
a forward cylinder installed on the rear surface of the seating plate, receiving the fluid supplied from the elastic pedestal, and advancing the seating plate in the hexagonal frame direction;
It is connected and installed on the front surface of the seating plate, and a close contact leg gear having a shape corresponding to the braking rack gear is formed on a front surface opposite to the braking rack gear, and as the seating plate moves forward, it is in close contact with the braking rack gear. a brake plate that brakes the hexagonal frame from lowering any further;
a sliding groove extending vertically along the front surface of the seating plate;
an elastic body installed under the sliding groove; and
and a sliding bar installed on the rear surface of the braking plate opposite to the sliding groove, being seated in the sliding groove, sliding in the vertical direction, and supported by the elastic body.
According to claim 6, The elastic pedestal,
an upper plate supporting the hexagonal frame seated on the upper side;
a lower plate installed to be spaced apart from the lower side of the upper plate and seated on the lower side of the support groove;
at least one support spring installed between the upper plate and the lower plate to support the upper plate from the upper side of the lower plate by using an elastic force;
a fluid tank installed between the upper plate and the lower plate and compressed as the upper plate descends to supply a fluid accommodated in the internal space; and
A fall prevention elevator comprising a; a fluid supply pipe extending from the fluid tank to the advancing cylinder and transferring the fluid supplied from the fluid tank to the advancing cylinder.
According to claim 2, wherein the elastic support,
an upper plate supporting the upper support plate;
a lower plate seated on the lower support plate;
at least one gap support part installed along between the upper plate and the lower plate to support the gap between the upper plate and the lower plate by using an elastic force;
It is installed between the upper plate and the lower plate to prevent the gap between the upper plate and the lower plate from widening, and when the upper plate and the lower plate are compressed in a direction closer to each other, the fluid contained in the internal space is removed. a fluid supply ring for supplying; and
It is installed in a symmetrical structure on the lower surface of the upper plate and the upper surface of the lower plate on which the gap support part is seated, so that the upper or lower part of the gap support part is installed, and when the fluid is supplied from the fluid supply ring, it is extended and the gap Containing, a fall prevention elevator comprising a; elastic control cylinder for increasing the elastic force of the gap support by compressing the support.
According to claim 8, wherein the fluid supply ring,
A first square ring formed in the form of a square ring;
a second square ring formed in the form of a square ring and cross-connected to the first square ring;
a first support pipe extending from the upper part of the first square ring to the upper plate and having a fluid movement passage for transferring the fluid along the inner side;
a second support pipe extending from the lower part of the second square ring to the lower plate and having a fluid movement passage for transferring the fluid along the inner side;
The fluid is accommodated in the inner space, is seated in the inner space of the first square ring, and is compressed by the upper surface of the second square ring as the upper plate and the lower plate come closer to each other and accommodated in the inner space. a first fluid pouch for supplying a fluid to the elastic control cylinder through a fluid movement passage of the first support tube; and
The fluid is accommodated in the inner space, is seated in the inner space of the second square ring, and is compressed by the lower surface of the first square ring as the upper plate and the lower plate come closer to each other and accommodated in the inner space. A second fluid pouch for supplying the fluid to the elastic control cylinder through the fluid movement passage of the second support pipe; Containing, the fall prevention elevator.
The method of claim 9, wherein the elastic adjustment cylinder,
a housing installed on a lower surface of the upper plate or an upper surface of the lower plate and forming an internal space; and
A fall prevention elevator comprising; a seating plunger that is seated in the housing and that is pushed out from the housing by the pressure of the fluid as the fluid is supplied to the housing and contracts the gap support installed on the outer surface.

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