KR200386599Y1 - Elevator type Interactive emergency stop apparatus - Google Patents

Abstract

The present invention relates to a two-way emergency stop device for elevators that can stop the car in the up or down direction in conjunction with the governor when the car is traveling at high speed in the up or down direction, or when the door is opened open will be.

To this end the present invention; An emergency stop device for stopping the elevator car when the elevator car vertically moving in an elevator hoisting path is driven by a hoisting machine, wherein the frame assembly part is located below the elevator car, and is provided at both ends of the frame assembly part and annular. A pair of lever assembly parts which are equally transmitted by the link member and a pair of jaw assembly parts associated with the lever assembly parts are mounted on both sides of the frame assembly part,

The lever assembly portion; A lever having a predetermined shape fixed to both ends of the annular link member is mounted via first and second members coupled to a vertical member of the frame assembly, and at least one wire clip for guiding a governor rope is provided on one surface of the lever. One or more plates are symmetrically fastened in the up and down direction are coupled to each other, and the second member has a structure in which a pair of return springs are disposed up and down to provide a return force in the up and down directions, and the jaw ( jaw) assembly part; Provided is an elevator two-way emergency stop device is provided with a jaw frame is provided with a cam member which is connected to the end of the lever is rotated in one direction according to the driving of the lever to make a contact process with the guide rail. .

Description

Elevator type interactive emergency stop apparatus for elevators

The present invention relates to a two-way emergency stop device for an elevator, and more particularly, to an elevator two-way emergency stop device for stopping the elevator car when the car rises or descends at an abnormal speed or when the gate departure. .

In general, an elevator or an escalator is installed in various buildings built for residential or business use to move people or objects in a vertical direction. In particular, the elevator quickly corresponds to a person or a cargo in an elevator car in a high-rise building. It is a representative longitudinal transportation with the advantage of being able to move to the floor.

In such an elevator structure, when the elevator speed increases beyond a predetermined range or the rate of change of speed increases or decreases over a predetermined range, a rope stopper as an auxiliary braking device is used to provide a brake device for braking the elevator car for safety and accident prevention. It is installed in a predetermined position, and the current situation is to compulsory the braking system in accordance with the elevator safety law.

The rope stopper is mounted on a mounting angle module installed on a fixed beam to press the main rope connected to the elevator car in the event of an abnormal operation of the elevator car moving up or down along the guide rail provided in the hoistway of the building. It has a structure to be mounted.

However, the currently used emergency stop device for elevators has been proposed as a vertical separation type installed in the lower part and the upper part of the elevator car in case of descending and rising at an abnormal speed, so that the linkage is linked with the emergency stop device. Due to the complicated structure, the overall emergency stop device is also complicated in structure, so the installation and manufacturing cost is high and there is a difficulty due to the man-hour during installation.

In addition, as a wedge-shaped wedge-shaped GIB moving type using U-Spring used in the emergency stop device, the structure is complicated and there is an inconvenience in controlling the braking force.

In order to solve the above problems, the present invention is designed to simplify the structure by constructing an emergency stop device composed of a conventional upper and lower type as an integrated type, and also by applying a cam (CAM) rotation type using a disk spring to raise and lower. It is an object of the present invention to provide a two-way emergency stop device for an elevator to provide a proper braking force for.

In addition, there is another purpose to simplify the link structure that is interlocked with the governor.

Elevator emergency stop device of the present invention for achieving the above object; An emergency stop device for stopping the elevator car when the elevator car vertically moving in an elevator hoisting path is driven by a hoisting machine, wherein the frame assembly part is located below the elevator car, and is provided at both ends of the frame assembly part and annular. A pair of lever assembly portions which are equally transmitted by the link member and a pair of jaw assembly portions associated with the lever assembly portions are mounted on both sides of the frame assembly portion, and the lever assembly portion; A lever having a predetermined shape fixed to both ends of the annular link member is mounted via first and second members coupled to a vertical member of the frame assembly, and at least one wire clip for guiding a governor rope is provided on one surface of the lever. One or more plates are symmetrically fastened in the up and down direction are coupled to each other, and the second member has a structure in which a pair of return springs are disposed up and down to provide a return force in the up and down directions, and the jaw ( jaw) assembly part; The jaw frame is provided with a cam member which is connected to the end of the lever and is rotated in one direction according to the driving of the lever to make a contact process with the guide rail.

Preferably, the jaw frame comprises; A cam member mounting portion to which the cam member is coupled to one side of the front portion and a pair of stoppers for intermittent rotation of the cam member are formed, and on the 'c' shaped protrusion to which the GIB member is coupled to the other side of the front portion. A pair of GIB shafts in which a disk spring compressed by rotation of the cam member and a washer for adjusting braking force are inserted into the formed pair of through holes is inserted into a pair of through holes formed in the rear part. It consists of a pair of frame rods for connecting with said frame assembly.

In addition, the cam member has a different height (a, b) is configured so that each braking force is provided differently when the elevator car is raised and lowered, the surface contacting the guide rail by the rotation of the cam member is frictional force It is formed in a sawtooth shape for increase.

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

1 is an overall structural view of an elevator bi-directional emergency stop apparatus according to a preferred embodiment of the present invention, Figure 2 is an exploded view of Figure 1, Figure 3 is a detailed exploded perspective view of the jaw assembly of Figure 1, Figure 4 Figure 3 shows the cam member, Figure 5 is an enlarged perspective view of the portion A of Figure 1, Figure 6 is a view showing that the jaw assembly of Figure 1 is assembled to the frame assembly.

First, as shown in FIG. 1, the bi-directional emergency stop device 10 has a predetermined length in the transverse direction, the top surface of which is open, and the safety frame 120 bent in an approximately 'b' shape on both sides thereof. Frame assembly unit 100, a pair of lever assembly unit 200, which is mounted on one end side of the frame assembly unit 100, is mounted to both ends of the frame assembly unit 100 of the lever assembly unit 200 It is composed of a pair of jaw assembly 300 having an interconnect structure by the annular link member 210.

1, 2, and 5, the lever assembly 200 is; Both ends of the annular link member 210 having a length similar to the transverse length of the frame assembly 100 are fitted to the through-hole 220a of the lever 220 having a switch function, and the inside of the lever 220. 1 is coupled to the first member 230 having a two-stage bending surface coupled to the 'b' type vertical member 110 of the frame assembly 100 and the predetermined bending surface of the first member 230. A second member 240 having a short bent surface is coupled and mounted to the vertical member 110. The annular link member 210 passes through the through hole 230a of the first member 230.

In addition, the lever 220 has a plate 250 coupled to the surface of the lever 220 by a bolt 252 and at least one wire clip 256 guiding the governor rope 254 is symmetrically in the vertical direction. Is fastened. An end of the lever 220 is mounted in association with a bolt 322 provided to the cam member 320 of the jaw assembly 300.

In addition, a pair of springs 242a and 242b are disposed up and down on the second member 240 to provide a return force in the up and down directions.

Meanwhile, referring to FIGS. 2 and 3, the jaw assembly portion 300, which is provided with a pair so as to be mounted on both ends of the frame assembly portion 100, is a substantially rectangular parallelepiped shape and has a cam member mounting portion at one side of the front portion. The 312 is formed to protrude and a pair of stoppers 314 are formed around the GIB shaft 332 to be fitted to the member 316 in a state in which the 'c' shaped member 316 is integrally formed on the other side. A pair of shaft through-holes 333 are formed, and a jaw frame 310 having a pair of frame rod through-holes 360 formed on the rear surface thereof, and fitted into the through-holes 333 and 360, respectively. The GIB shaft 332 and the frame rod 350 and the cam member seating portion 312 formed on one surface of the jaw frame 310 are seated on the contact surface corresponding to the stoppers 314a and 314b. A cam member 320 to be cut, a GIB 330 fixed in the '' 'member, and the jaw frame 310. It consists of a stationary plate 360 mounted to the end.

Here, the socket stop screw 332a is formed at the end of the GIB shaft 332, and a groove provided with a screw thread is formed at the corresponding GIB 330 to be coupled to each other.

In addition, the GIB shaft 332 is inserted into the disk spring 334 is compressed by the rotation of the cam member 320 and the washer 332 for braking force adjustment.

In addition, the frame rod 350 is exposed to the outside of the jaw frame 310 when the washer 352 and the spring 354 are interposed between both ends of the frame rod 350 when the frame rod 350 is fitted into the through hole 360. In order to prevent the frame rod 350 from being separated from the through hole 360, the split pins 356 are interposed at end portions thereof.

Reference numeral 324 is a stop-ring.

The jaw frame 310 into which the frame rod 350 is fitted is coupled to the safety frame 120 in FIG. 6, and is configured to be fixed to a predetermined position by using the spring 354. . Of course, the jaw frame 310 and the safety frame 120 is connected by a fixing bolt 372.

On the other hand, the cam member 320 is configured to have a different height in order to different the braking force of the rising and falling, and the surface in contact with the guide rail 400 is concave or convex shape to maximize the contact area.

Next, the operation of the present invention will be described with reference to the accompanying drawings.

When the elevator car vertically moving in the elevator hoisting exceeds the rated speed or starts with the elevator door open, the governor rope 254 is stopped by the governor.

Thereafter, the elevator car continues to move in the advancing direction, and the lever 220 is driven according to the relative movement direction of the rising or falling of the elevator car to stop the elevator car.

The process of rotating the cam member 320 such that the lever 220 is driven will be described according to the traveling direction of the elevator car.

First, referring to FIGS. 7A to 7C, a description will be given when the elevator car makes an abnormal driving in a downward direction.

When the governor rope 254 stops when the elevator car operates in the downward direction, the annular link member 210 rotates clockwise and the pair of levers 220 connected to the annular link member 210. ) Is also raised, the force is transmitted to the cam member 320 by the other end of the lever 220, that is, the bolt (322).

Then, the cam member 320 is also rotated so that one surface of the cam member 320 is in contact with the guide rail 400.

At this time, when the lever 220 is raised, the upper spring 242a is compressed among the pair of return springs 242a and 242b disposed up and down. In addition, the cam member 320 has a movement distance of about 12 mm (a) from the central axis of the initial position (FIG. 7 a) (FIG. 7 b).

Subsequently, when the elevator car descends continuously, the cam member 320 continues to rotate until the guide rail 400 is completely bitten. When the cam member 320 is completely rotated to bring the guide rail 400 into perfect contact, the cam member 320 is no longer rotated by the stopper 314 mounted on the jaw frame 310. Instead, the disk spring 334 provided on the inner surface of the GIB 330 is compressed.

At this time, a movement distance of about 30 mm (b) is generated that the cam member 320 starts to rotate to completely contact the guide rail 400 (FIG. 7C).

When the cam member 320 completely contacts the guide rail 400, the surface contacting the guide rail 400 has an uneven or jagged shape, thereby increasing frictional force.

Similarly, a case in which the elevator rises at an abnormal speed will be described with reference to FIGS. 8A to 8C.

Even in this case, when the elevator car ascends and the governor rope 254 is stopped, the lever 220 is lowered together with the annular link member 210. At this time, when the lever 220 is lowered, the lower spring 242b is compressed among a pair of return springs 242a and 242b disposed up and down.

Then, the cam member 320 connected to the end of the lever 220 is rotated, and as described above, when a movement distance of about 13 mm (c) is generated, one surface of the cam member 320 is guide rail 400. ) And some contact (FIG. 8B), the movement distance of about 30mm (d) is generated and the state of the elevator car is stopped when completely bitten.

On the other hand, the pair of jaw assembly 300 is connected to both ends of the frame assembly portion 100 by the annular link member 210 when the elevator car is abnormal driving the annular link member 210 When is rotated, the force is transmitted and operated at the same time.

When the lever 220 is rotated by the annular link member 210, the emergency stop device is operated to cut off the main power of the motor.

And, the release of the emergency stop device by raising or lowering the elevator car, the return springs (242a, 242b) is returned to the initial state and thus automatically returned to its original state.

That is, when the emergency stop device is released, the springs 242a and 242b return to their original positions when the elevator car is forced in the opposite direction to the upper spring 242a or the lower spring 242b which is compressed when the elevator car is lowered or raised. The cam is then centered as the initial position prior to rotation.

As described above, according to the present invention, when the elevator car descends or rises at an abnormal speed, and when the car starts to open, the emergency stop device composed of up and down parts is configured to stop the car, and the disk spring is integrated. By applying the CAM rotary type, it is possible to provide proper braking force for up and down, and also by simplifying the link structure linked with the governor, it is possible to reduce the installation cost and operating cost due to the simplicity of the structure. have.

On the other hand, the present invention is not limited to the above-described specific preferred embodiment, and because it is applicable to vertical transportation means such as tower crane, it is usually in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Anyone with knowledge of the world will be able to make various changes.

1 is an overall structural diagram of a two-way emergency stop device for an elevator according to a preferred embodiment of the present invention,

2 is an exploded view of FIG. 1;

3 is a detailed exploded perspective view of the jaw assembly of FIG.

4 is a view showing the cam member of FIG.

5 is an enlarged perspective view of a portion A of FIG. 1;

6 is a view showing that the jaw assembly of Figure 1 assembled to the frame assembly;

7a to 7c is a view showing the operation sequence of the cam member when the elevator car moves in the downward direction,

8A to 8C are views showing the operation sequence of the cam member when the elevator car moves in the upward direction.

* Description of the symbols for the main parts of the drawings *

100: frame assembly, 200: lever assembly,

210: annular link member, 220: lever,

250: plate, 254: governor rope,

300: jaw assembly, 310: jaw frame,

314: stopper, 320: cam member,

330: GIB, 332: GIB shaft,

334 disc spring, 336 washer,

350: Load frame.

Claims (4)

In the emergency stop device for stopping the elevator car when the vertical movement of the elevator car in the elevator hoisting in accordance with the drive of the hoisting machine, A frame assembly unit positioned below the elevator car, a pair of lever assembly units installed at both ends of the frame assembly unit and receiving the same force by the annular link member, and a pair of jaws connected to the lever assembly unit. Assembly parts are mounted on both sides of the frame assembly part, The lever assembly portion; A lever having a predetermined shape fixed to both ends of the annular link member is mounted via first and second members coupled to a vertical member of the frame assembly, and at least one wire clip for guiding a governor rope is provided on one surface of the lever. Plates are coupled to one or more symmetrical fastening in the up and down direction is coupled, the second member has a structure in which a pair of return springs are arranged up and down to provide a return force in the up and down direction, The jaw assembly portion; Two-way emergency stop for elevator, characterized in that the jaw frame is provided with a cam member which is connected to the end of the lever is rotated in one direction according to the driving of the lever and the contact process with the guide rail is provided. Device. The method of claim 1, The jaw frame; A cam member mounting portion to which the cam member is coupled to one side of the front portion and a pair of stoppers for intermittent rotation of the cam member are formed, and on the 'c' shaped protrusion to which the GIB member is coupled to the other side of the front portion. A pair of GIB shafts, into which a disk spring compressed by rotation of the cam member and a washer for adjusting braking force, are inserted into the formed pair of through holes, Two-way emergency stop device for an elevator, characterized in that consisting of a pair of frame rods are inserted into a pair of through holes formed in the rear portion to connect with the frame assembly. The method of claim 2, The frame rod has a washer and a spring interposed at both ends, and a split pin is fitted to prevent the frame rod from being separated from the through hole, and is fixed to a predetermined position between the safety frames of the frame assembly by the spring. Two-way emergency stop device for the elevator characterized in that it is fixed. The method of claim 1, The cam member has a different height (a, b) is configured to provide different braking force differently when the elevator car is raised and lowered, and the surface contacting the guide rail by the rotation of the cam member increases the friction force Elevator two-way emergency stop device characterized in that formed in the shape of a sawtooth.