KR102247622B1 - Multi type safety device of super size elevator for extremely heavy load - Google Patents

Abstract

The present invention relates to a multi-emergency stop safety device of an ultra-large and high load elevator, which is to provide an emergency stop safety device of a new structure suitable for an ultra-large and high load elevator in which many people board or heavy cargo or equipment is mounted. To this end, the multi-emergency stop safety device of the present invention comprises: an ultra-large and high load boarding car having the capacity of tens to hundreds of tons; a plurality of quadrilateral frames provided on an upper part, both side parts, and a lower part of the boarding car (C); a plurality of T-shaped guide rails (28) provided on both side parts of a hoistway of the boarding car (C) to correspond to the quadrilateral frames; and a governor (60) provided in an upper machine chamber of the hoistway, and operated in case of overspeeding and falling of the boarding car. The quadrilateral frames include: a plurality of upper horizontal frames (21); a pair of side vertical frames (22), respectively assembled with both ends of the horizontal frames (21); and a lower horizontal frame (23), respectively assembled with both ends of the side vertical frames (22). The emergency stop safety device is provided on each of the quadrangular frames.

Description

Multi emergency stop safety device for extra-large heavy-duty elevators {MULTI TYPE SAFETY DEVICE OF SUPER SIZE ELEVATOR FOR EXTREMELY HEAVY LOAD}

The present invention relates to a multi-emergency stop safety device for an extra-large heavy-duty elevator, and more particularly, in an extra-large heavy-duty elevator in which a large number of passengers and large cargoes are mounted, the boarding car is controlled when an emergency situation such as speeding or falling of the boarding car occurs. It relates to a multi-emergency stop safety device that can be gradually and safely stopped.

In general, elevators are equipped with an emergency stop device for preventing a fall or a speeding rise due to an abnormal operation of a boarding car.

1 and 2 show an example of an emergency stop device provided in a conventional elevator (E).

The emergency stop device 40 is provided on both sides of the boarding car, and normally moves up and down at a slight distance from the guide rail 50 installed vertically in the hoistway. In case of an emergency, the brake block and the guide rail It comes in close contact and stops the boarding car.

The above-described emergency stop device 40 is a pair of movable types that are formed on both inner sides of a plane that is in close contact with the guide rail 50 and the outer side is formed as an inclined surface so as to move up and down by a governor (not shown). The tapered block 41 and the inner side is formed as an inclined surface corresponding to the inclined surface of the movable tapered block 41, and the outer side is formed in a flat surface and disposed outside the movable tapered block 41, and the movable taper block 41 When the block 41 moves upward by the governor, it is configured to include a pair of fixed tapered blocks 42 that make the brake blocks 11 and 16 in close contact with the guide rail 50 through a wedge action.

In addition, an elastic block 43 is further provided between the brake blocks 11 and 16 and the fixed tapered block 42, and between the inclined surface of the movable tapered block 41 and the inclined surface of the fixed tapered block 42 A plurality of needle bearings 44 may be further provided.

In the above-described structure of the emergency stop device, when the boarding car rises or descends at high speed, the movable tapered block 41 is raised by the operation of the governor provided in the upper machine room.

Then, by a wedge action with the fixed tapered block 42 disposed outside the movable tapered block 41, the movable tapered block 41 is in close contact with the guide rail 50 to stop the boarding car.

The governor is also referred to as a governor or a speed control device, and detects when the boarding car rises or descends due to a speeding so that the emergency stop device is operated.

However, the above-described conventional emergency stop device 40 can be used without any problem in a typical elevator for print cargo, but it is not suitable to be applied as it is to an elevator for super-large loads having a loading capacity of several tens to several hundred tons.

Accordingly, there is a need for an emergency stop safety device having a structure capable of safely stopping in an emergency even when a large number of people are on board or large cargo or equipment is mounted in an extra-large, high-load elevator.

Meanwhile, as a result of searching the prior art related to the present invention, a number of patent documents have been searched, and some of them are as follows.

Patent Document 1, a brake housing installed at the lower edge of an elevator and having a guide groove into which the guide rail is inserted at a predetermined position thereof; An elastic member installed so as to expand and contract vertically with the guide groove in the brake housing; One side is coupled to the front end of the elastic member, the other side is a primary block tapered in a "V" shape; A secondary block that is coupled to the governor rope by a link, and makes the state of being engaged with the primary block in the brake housing as an initial state so that the guide rail and the guide groove are in close contact with each other when the governor rope is stopped; A lid fixed to the brake housing, supporting an elastic member, a primary block and a secondary block, and having a guide hole for guiding the movement of the secondary block; And a brake shoe that is installed on the inner wall of the guide groove and forms a friction surface when the guide rail and the guide groove are in close contact by the secondary block. Disclosed is an emergency stop device for an elevator that can be stopped, but can operate both for abnormal ascent and for abnormal descending with one device.

Patent Document 2 is provided with a governor frame and a centrifugal addition in which a rotation radius increases during speeding up and down inside the governor frame and a pole operated by the centrifugal weight is provided in the elevator cage at the circumferential rim portion. An emergency stop device for an elevator comprising a governor wheel on which a governor rope to be connected is wound, and a latch wheel that is connected coaxially with the governor wheel and selectively meshes with a pole, wherein the latch wheel has an arc-shaped long hole. The governor frame is provided with a stop bolt that is inserted into the long hole to limit the rotation of the latch wheel, and the rim of the governor wheel is formed in a V groove in cross section, and the pawl is a latch wheel by a centrifugal weight. When inserted in, the rotation of the latch wheel and governor wheel is stopped by the stop bolt, and the governor rope is temporarily inserted into the V groove of the governor wheel to brake the elevator. In addition, a stopper hole is formed in the latch wheel to prevent arbitrary rotation of the latch wheel, and a latch wheel stopper selectively inserted into the stopper hole is provided on one side of the governor frame, so that the latch wheel rotates arbitrarily. Disclosed is an emergency stop device for an elevator, which is made to prevent this.

Korean Patent Application Publication No. 10-2003-0093946 Korean Patent Application Publication No. 10-2006-0109197

The present invention is to solve the problems of the prior art described above, and it is an object of the present invention to provide a new structured emergency stop safety device suitable for an extra-large heavy-duty elevator in which a large number of people are boarded or a heavy cargo or equipment is mounted.

Another object of the present invention is to prevent safety accidents by gradually stopping the boarding car in the event of an emergency situation in which the boarding car moves up and down at high speed.

Another object of the present invention is to reduce the depth of the pit formed on the ground, and to facilitate maintenance of the device.

In order to achieve the above object, the multi-emergency stop safety device according to the first embodiment of the present invention includes an ultra-large heavy-duty boarding car having a capacity of several tens tons to several hundreds tons, A plurality of quadrangular frame frames, a plurality of T-shaped guide rails provided on both sides of the boarding car hoistway to correspond to the quadruped frame frame, and provided in the machine room at the upper part of the hoistway to operate when the boarding car speeds up and falls In the emergency stop safety device for a super-large heavy-duty elevator comprising a governor, the quadrangular frame frame, a plurality of upper horizontal frames, a pair of side vertical frames assembled with both ends of the horizontal frame, and the It consists of a lower horizontal frame that is assembled with both ends of the side vertical frame, and an emergency stop safety device is provided in each of the quadrangular frame frames.

In addition, the emergency stop safety device includes a pair of movable taper blocks with an inner side formed as a flat surface in close contact with the guide rail and an outer side as an inclined surface, and a pair of movable taper blocks operated by the governor, and the inner side of the movable taper block Consisting of a pair of fixed tapered blocks formed with an inclined surface corresponding to the inclined surface of the vehicle and having a flat outer surface, the pair of movable tapered blocks are guide rails by a wedge action during speeding and falling of the boarding car. It is characterized in that it is in close contact with both sides of the vehicle to gradually stop the boarding car.

In addition, the pair of movable tapered blocks and fixed tapered blocks are provided on both sides of a plurality of upper horizontal frames, respectively, and the plurality of upper horizontal frames are connected to each other by left and right interlocking links.

In addition, a left upper frame and a right upper frame are further provided on the lower left and right sides of the upper horizontal frame, so that the upper frame is composed of two stages, and a pair of movables on both ends of the upper horizontal frame, the left upper frame and the right upper frame. It is characterized in that each of the type tapered block and the fixed type tapered block are provided.

In addition, the plurality of upper horizontal frames are horizontally connected by left and right interlocking links, and the plurality of left upper frames and right upper frames are respectively connected horizontally by left and right interlocking links, and the upper horizontal frame and the upper left The frame and the upper right frame are vertically connected to the upper and lower interlocking links, respectively.

In addition, the pair of movable tapered blocks and fixed tapered blocks are provided on both sides of a plurality of lower horizontal frames, respectively, and the plurality of lower horizontal frames are connected to each other by left and right interlocking links.

In addition, a left lower frame and a right lower frame are further provided on the lower left and right sides of the lower horizontal frame, so that the lower frame is composed of two stages, and a pair of movable parts are movable at both ends of the lower horizontal frame, the left lower frame and the right lower frame. It is characterized in that each of the type tapered block and the fixed type tapered block are provided.

In addition, the plurality of lower horizontal frames are horizontally connected by left and right interlocking links, and the plurality of left lower frames and right lower frames are horizontally connected by left and right interlocking links, respectively, and the lower horizontal frame and the lower left The frame and the right lower frame are vertically connected by vertical linkage links.

In addition, a front door frame is provided at the front of the boarding car, and a rear door frame is provided at the rear of the boarding car, so that the boarding car is configured in an open front and rear surface.

In addition, a door weight is further provided on the sides of the front door frame and the rear door frame.

In addition, it is characterized in that a tension sheave and a tension weight connected to the governor in the upper part of the machine room are provided in the pit provided in the lower part of the boarding car hoistway.

According to the multi-emergency stop safety device of an extra-large heavy-duty elevator according to the present invention, there is an effect of being able to safely stop a boarding car when a boarding car speeds or falls in an extra-large heavy-duty elevator in which a large number of people are boarded or loaded with heavy cargo or equipment.

In addition, by installing emergency stop safety devices on a plurality of square frame-shaped frames surrounding the boarding car, the safety devices can be reliably operated, and there is an effect that the heavy boarding car can gradually stop.

In addition, by forming the frame in which the emergency stop safety device is installed in two stages, there is an effect of improving structural safety and braking power.

In addition, when the emergency stop safety device is installed on the upper part of the boarding car, there is no need to form a deep pit in the ground, and there is an effect of simplifying maintenance of the emergency stop safety device.

1 is a side cross-sectional view showing an example of a conventional elevator emergency stop device.
Figure 2 is a plan cross-sectional view showing an example of a conventional elevator emergency stationary device.
3 is a perspective view of an emergency stop safety device according to a first embodiment of the present invention.
4 is a plan view of an emergency stop safety device according to a first embodiment of the present invention.
5 is a front view of an emergency stop safety device according to a first embodiment of the present invention
Figure 6 is a side view of the emergency stop safety device according to the first embodiment of the present invention.
Figure 7 is a partially enlarged view of Figure 6;
8 is a side view of an emergency stop safety device according to a second embodiment of the present invention.
9 is a partially enlarged view of FIG. 8.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a multi-emergency stop safety device for a super-large high-load elevator according to the present invention.

<First Example>

3 to 7 show a first embodiment of the present invention.

A multi-emergency stop safety device (hereinafter simply referred to as an'emergency stop safety device') according to the first embodiment of the present invention includes an extra-large heavy-duty boarding car (C) having a capacity of several tens tons to several hundred tons, A plurality of quadrangular frames provided on the upper, both sides and lower portions of the boarding car (C), and a plurality of T-shaped guides provided on both sides of the boarding car (C) hoistway to correspond to the quadrangular frame frames It is configured to include a rail 28 and a governor 60 that is provided in the upper machine room of the hoistway and operates when the boarding car is overspeed and falls.

The quadrangular frame frame includes a plurality of upper horizontal frames 21, a pair of side vertical frames 22 respectively assembled with both ends of the horizontal frame 21, and both ends of the side vertical frames 22 And a lower horizontal frame 23 to be assembled, respectively, and an emergency stop safety device is provided on the quadrangular frame frame.

That is, the present invention includes a plurality of quadrilateral frames surrounding a boarding car, and the emergency stop safety device is provided on each of the plurality of quadrilateral frames.

Although four quadrangular frames are shown in the drawing, the number of quadrangular frames may be appropriately adjusted according to the size of the boarding car.

In addition, reference numeral 27 in FIGS. 4 and 5 denotes a wire rope sheave for elevating the boarding car (C).

In addition, the emergency stop safety device, as shown in Figure 7, the inner side is formed as a plane in close contact with the guide rail 28 and the outer side is formed as an inclined surface, a pair operated by the governor (60) And a pair of fixed tapered blocks 31 formed with an inclined surface corresponding to the inclined surface of the movable tapered block 32 on the inside and a flat surface formed on the outside.

With the above structure, when the boarding car C is overspeed and falling, the movable tapered block 32 is in close contact with both sides of the guide rail 28 so that the boarding car C can be gradually stopped. .

In addition, the pair of movable tapered blocks 32 and fixed tapered blocks 31 are provided on both sides of a plurality of upper horizontal frames 21, respectively, and the plurality of upper horizontal frames 23 are left and right interlocking links. They are connected to each other by (33).

With the above structure, the emergency stop safety devices provided on each horizontal frame 21 can be interlocked with each other.

Meanwhile, as shown in FIGS. 3 and 7, a left upper frame 21a and a right upper frame 21b may be further provided on the lower left and right sides of the upper horizontal frame 21.

That is, by configuring the upper frame into two stages, on both ends of the upper horizontal frame 21, the left upper frame 21a and the right upper frame 21b, a pair of movable tapered blocks 32 and a fixed tapered block ( 31) can be provided respectively.

Here, the left upper frame 21a and the right upper frame 21b are not formed as a whole like the upper horizontal frame 21, as shown in FIG. 3, but have a length sufficient to install an emergency stop safety device. It is preferable to form with.

When the upper frame is formed in two stages, as shown in FIG. 7, the plurality of upper horizontal frames 21 are horizontally connected by left and right interlocking links 33, and the plurality of left upper frames 21a ) And the upper right frame 21b are horizontally connected by the left and right interlocking links 33, respectively.

In addition, the upper horizontal frame 21, the left upper frame 21a and the right upper frame 21b are vertically connected by upper and lower interlocking links 34, respectively.

According to the above structure, in case of an emergency, a plurality of emergency stop safety devices are interlocked to operate, so that the boarding car can be gradually and safely stopped.

In addition, the present invention, as shown in Figure 3, the front door frame (24a) is provided in the front of the boarding car (C), the rear door frame (24b) is provided at the rear, the boarding car door is provided at the front and rear Make it open.

With the above structure, various working vehicles, such as a forklift, can enter the inside of the boarding car and easily enter the inside of the building.

In addition, a driving motor 26 for driving a boarding car door is installed above the front door frame 24a and the rear door frame 24b, and a door weight 25 is provided on the side.

A separate door weight is not required for the passenger car door of a conventional elevator, but the door itself becomes heavy because the present invention is a very large elevator.

Accordingly, in order to reduce the driving force according to the opening and closing of the boarding car door, it is preferable to provide a door weight 25.

In addition, the present invention, as shown in Figure 6, the boarding car (C) is further provided with a pit (P) in the lower part of the elevator passage, the lower horizontal frame provided in the lower part of the boarding car (C) in the pit (P) Let (23) enter.

Here, it is preferable that a plurality of hydraulic buffers (not shown) are provided on the bottom of the pit P.

In addition, the pit P is provided with a tension sheave 61 and a tension weight 62 connected to the governor 60 in the upper part of the machine room.

The tension sheave 61 is supported by the guide rail 28 by the support member 63, and is connected to the governor 60 on the upper part by a wire rope W.

The tension weight 62 maintains a certain tension in the wire rope W connecting the governor 60 and the tension sheave 61.

Since the structure in which the emergency stop safety device is operated by the governor is a known technology, a detailed description thereof will be omitted.

In the present invention, the outer surface of the boarding car is wrapped with a plurality of square frame frames, and an emergency stop safety device is installed for each square frame frame.

In addition, an upper frame or a lower frame is formed in two stages, an emergency stop safety device is installed therein, and interlocked with each other by the left and right link links and the upper and lower link links.

In this way, in the case of an emergency situation in a super-large heavy-duty elevator of several tens to several hundred tons, the boarding car can be gradually and gradually stopped safely.

In addition, according to the first embodiment of the present invention, since the emergency stop safety device 30 is installed on the upper frame, it is not necessary to deeply form the pit P formed in the basement.

Accordingly, there is an advantage that can be suitably applied when the underground ground cannot be deeply excavated, and the depth of the pit P does not need to be formed deeply.

In addition, since the emergency stop safety device 30 is provided on the upper frame, maintenance work of the device is also simplified.

<Second Example>

8 and 9 show a second embodiment of the present invention.

In the second embodiment of the present invention, the emergency stop safety device is installed on the lower frame in the above-described first embodiment.

That is, a pair of movable tapered blocks 32 and fixed tapered blocks 31 are provided on both sides of a plurality of lower horizontal frames 23, respectively, and the plurality of lower horizontal frames 23 are provided with left and right interlocking links ( 33) are connected to each other.

And, as in the case of the first embodiment, a left lower frame 23a and a right lower frame 23b are further provided on the lower left and right sides of the lower horizontal frame 23, so that the lower frame can be configured in two stages. have.

Here, at both ends of the lower horizontal frame 23, the left lower frame 23a and the right lower frame 23b are provided with a pair of movable tapered blocks 32 and fixed tapered blocks 31, respectively.

In addition, the plurality of lower horizontal frames 23 are connected horizontally by the left and right interlocking links 33, and the plurality of left lower frames 23a and the right lower frames 23b are horizontally connected by the left and right interlocking links 33. Each is connected by.

In addition, the lower horizontal frame 23, the left lower frame 23a and the right lower frame 23b are vertically connected by upper and lower interlocking links 34, respectively.

The second embodiment of the present invention can be applied when the pit P cannot be deeply formed.

Other matters are the same as in the case of the first embodiment, and thus redundant descriptions will be omitted.

Although the embodiments for exemplifying the technical idea of the present invention have been described and illustrated above, the present invention is not limited to the configuration and operation as described above, and deviates from the scope of the technical idea described in the claims. It will be well understood by those skilled in the art that a number of changes and modifications can be made to the present invention without.

Accordingly, all such appropriate changes and modifications and equivalents should be considered to be within the scope of the present invention.

11, 16: brake block 21: upper horizontal frame
21a: upper left frame 21b: upper right frame
22: side vertical frame 23: lower horizontal frame
23a: lower left frame 23b: lower right frame
24a: front door frame 24b: rear door frame
25: door weight 26: door drive motor
27: Sheave 28: Guide Rail
30: emergency stop safety device
31: fixed tapered block 32: movable tapered block
33: left and right interlocking links 34: up and down interlocking links
40: emergency stop device 41: movable taper block
42: fixed tapered block 43: elastic body block
44: needle bearing 50: guide rail
60: Govenor 61: Tension Sheave
62: tension weight 63: support member
C: Boarding car P: Pit

Claims (11)

A boarding car (C) for extra-large loads having a capacity of tens tons to hundreds of tons, a plurality of quadrilateral frames provided in the upper, both sides and lower portions of the boarding car (C), and boarding so as to correspond to the quadrilateral frames Including a plurality of T-shaped guide rails 28 provided on both sides of the car (C) hoistway, and a governor 60 provided in the upper machine room of the hoistway to operate when the boarding car speeds up and falls. In the emergency stop safety device of an elevator for extra-large heavy loads made,
The quadrilateral frame,
A plurality of upper horizontal frames 21, a pair of side vertical frames 22 assembled with both ends of the horizontal frame 21, and a lower horizontal assembled with both ends of the side vertical frames 22 It consists of a frame (23),
An emergency stop safety device is provided in each of the quadrangular frame frames,
The emergency stop safety device,
A pair of movable tapered blocks 32 having an inner side formed as a plane in close contact with the guide rail 28 and an outer side as an inclined surface, and operated by the governor 60,
Consisting of including a pair of fixed tapered blocks 31 having an inner side formed as an inclined surface corresponding to the inclined surface of the movable tapered block 32 and an outer side formed as a flat surface,
The pair of movable tapered blocks 32 are in close contact with both sides of the guide rail 28 by a wedge action during speeding and falling of the boarding car C to gradually stop the boarding car C,
The pair of movable tapered blocks 32 and fixed tapered blocks 31 are provided on both sides of the plurality of upper horizontal frames 21, respectively,
A left upper frame 21a and a right upper frame 21b are further provided on the lower left and right sides of the upper horizontal frame 21, and the upper frame is composed of two stages,
A pair of movable taper blocks 32 and fixed taper blocks 31 are provided at both ends of the upper horizontal frame 21, the left upper frame 21a and the right upper frame 21b,
The plurality of upper horizontal frames 21 are horizontally connected by left and right interlocking links 33,
The plurality of left upper frames (21a) and right upper frames (21b) are horizontally connected by left and right interlocking links (33), respectively,
The upper horizontal frame 21, the left upper frame 21a and the right upper frame 21b are vertically connected by upper and lower interlocking links 34, respectively,
In an emergency, a plurality of emergency stop safety devices are interlocked to operate to gradually and safely stop the boarding car.
A front door frame 24a is provided in front of the boarding car C, and a rear door frame 24b is provided in the rear,
At the sides of the front door frame 24a and the rear door frame 24b, a door weight 25 is further provided so that the boarding car door is configured in a front and rear open type
For extra-large heavy loads, characterized in that a tension sheave 61 and a tension weight 62 connected to the governor 60 in the upper part of the machine room are provided in the pit P provided in the lower part of the boarding car C. Elevator multi emergency stop safety device. delete delete delete delete delete delete delete delete delete delete

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