KR100609009B1 - Two way emergency stop for elevator - Google Patents

Abstract

The present invention relates to an elevator two-way emergency stop device to minimize the damage of the guide rail during the emergency stop of the elevator car, to improve the frictional force with the guide rail to quickly emergency stop the elevator car.

To this end, in an emergency stop device for an elevator, the clamping assembly includes: a body coupled to the coupling hole of the middle plate to be transportable; A clamp fixed to one side of the rail groove; A roller assembly which is slidably moved on and below the clamp on one surface; A return spring for returning the roller assembly; A moving brake shoe provided on one surface of the roller assembly to press the guide rail; A guide plate covering the front of the movable brake shoe; A fixed brake shoe fixed to protrude from the other surface of the rail groove; It characterized in that it comprises a clamping assembly safety device that serves to limit the transfer of the body and return the body.

According to the above configuration, since the friction surface is smooth and the guide rail is pressurized through the moving brake shoe having good frictional force, it is possible to prevent the damage of the guide rail and to prevent vibration of the elevator car, and also to improve the braking performance of the elevator car. It also has the effect of stopping the elevator car quickly and accurately.

Elevator, moving brake shoe, guide rail, pressurization, roller.

Description

Two-way emergency stop device for elevators {Safety device for an elevator}

1 is a perspective view showing an emergency stop device for an elevator registered by the applicant of the present application;

Figure 2a, 2b is a front view showing the operating state of the emergency stop device for elevators registered and registered by the present applicant,

Figure 3a, 3b, 3c is a side view showing the operating state of the two-way emergency stop device for the elevator is registered and filed by the applicant

Figure 4 is a schematic diagram showing the installation state of the two-way emergency stop device for elevators according to the present invention,

5 is an exploded perspective view showing a coupling structure of the clamping assembly of the two-way emergency stop device for an elevator according to the present invention,

Figure 6a, 6b, 6c is a side view showing the operating state of the two-way emergency stop device for elevators according to the present invention,

Figure 7a, 7b is a side view showing the operating state of the clamping assembly safety device according to Figures 6a, 6b,

8A and 8B are plan views of FIGS. 6A and 6B,

9a and 9b are front views showing the operating state of the linkage unit according to the present invention;

* Description of Major Symbols in Drawings *

100: stop device 240: middle plate

250: side portion 260: coupling hole

300: body 310: rail groove

312: moving groove 314: obtuse

320: clamp 325: spring groove

330: roller assembly 332: connecting frame

334: roller 336: support rod

337: ring groove 340: return spring

350: moving brake shoe 352: guide pin

354: stopper block 360: guide plate

362: guide groove 370: fixed brake shoe

380: fixed plate 390: leaf spring

400: operation link 410: scissors type link

410a, 410b: upper and lower legs 412: flow hole

414: stopper pin 420: return spring

430: spacing link 440: bracket

500: connecting bar 510: upper adjustment plate

520: lower adjustment plate 530: compression spring

600: governor G: guide rail

R: Rope B: Bolt

N: Nut

The present invention relates to an elevator bi-directional emergency stop device, and more particularly, to minimize the damage of the guide rail during emergency stop of the elevator car, to extend the life of the guide rail, improve the friction force with the guide rail to make the elevator car more reliable A bidirectional emergency stop device for an elevator is provided for quickly stopping the emergency.

In general, an elevator car, also called an elevator, carries a passenger or a cargo while vertically raising and lowering an elevator aisle, and is generally installed in each building due to its convenience.

When the elevator car is not braked due to the breakage of the rope, the failure of the motor, or the defect of the elevator braking device due to the characteristic of being lifted up and down by the rope, the elevator car is suddenly raised, lowered, or falls, causing a great casualty. do.

In order to solve such a problem, emergency stop devices are installed on both sides of the bottom of the elevator car to forcibly stop the elevator car in an emergency to prevent the accident of falling of the elevator car.

1 to 2B are for the Korean Registered Room Utility Model Registration No. 326832 (name: emergency stop device for an elevator), which is filed and determined by the applicant, and is mainly an upper plate 200, a housing 300, The leaf spring 400, the guide block 500, the front and rear guide plates 600, 610, the wedge 800, and the like.

Hereinafter, the upper plate 200 is fixed to both bottom surfaces of the elevator car, and the housing 300 is welded to the lower portion of the upper plate 200. In addition, the housing 300 is accommodated in the leaf spring 400, the guide block 500, the front and rear guide plates 600, 610, the wedge 800, etc. First, the leaf spring 400 Is installed to be guided by guide blocks 500 installed through both side portions 310 of the housing 300, the guide block 500 being in contact with the upper plate 200 on the inner surface of the housing 300. Each is fixed.

In addition, the front and rear guide plates 600 and 610 are coupled to the front and rear surfaces of the guide block 500, respectively, and the roller 700 is disposed between the front guide plate 600 and the rear guide plate 610. Insert is installed. The wedge 800 is coupled between the front guide plate 600 and the rear guide plate 610 in contact with the roller 700, and a rod R is connected to a bottom surface of the wedge 800.

That is, when the emergency rod (R) is pulled upward, the wedge 800 coupled with the rod R is upward by the roller 700 and the stable guides of the front and rear guide plates 600 and 610. The wedge 800 is thereby clamping the guide rail (G) strongly, it is possible to stop the elevator car.

However, the above-mentioned conventional emergency stop device for elevators has the effect of sudden braking at the time of falling or falling of the elevator car, but the elevator car can be stopped when the elevator car suddenly rises due to the motor abnormality or malfunction of the elevator car. Therefore, there was a problem that can not guarantee the safety of the passengers using the elevator.

The accompanying drawings, FIGS. 3A to 3C are for Patent No. 506789 (name: Bi-directional emergency stop device for an elevator) filed and filed by the present applicant to solve the above problems, and are largely clamping assemblies and rolling device parts. And a link device section.

In detail, the clamping assembly first frictionally brakes the brake shoe 34 to the guide rails G by pressing the roller 41, and the body 30 is mounted on the middle plate 24 so as to be transportable. (30) Mount the clamps 33 in the center of the inner surface of the rail groove 31 formed in the center, respectively, and install the brake shoes 34 protruding from the inner surface of the rail groove 31.

The rolling device unit serves to press the guide rails G by moving to the upper or lower portion of the clamping assembly, and hooks both ends of the rope R to the operation link 42, and links the center of the operation link 42. The 43 is rotatably mounted, and the guide plate 40 is mounted at the end of the link 43. In addition, the rollers 41 are provided on the guide plate 40 so that the rollers 41 may be transported along the clamp 33 to press the guide rails G when the rollers 41 move.

The link device portion (not shown) connects the rolling device portions provided at both sides to clamp the guide rails G provided at both sides of the elevator car at the same time, thereby exhibiting the same braking performance on both sides.

That is, when the elevator car descends and rises, the action of pulling the rope upward or downward occurs, and the roller is conveyed upward or downward along the protruding clamp to strongly press the guide rail. . Therefore, the body is moved to the predetermined interval side by the action of the roller that is in close contact with the guide rail and the opposite side of the guide rail is in close contact with the brake shoes to quickly emergency stop even when the elevator car suddenly as well as suddenly rises It can be.

However, the above-mentioned conventional emergency stop device for an elevator is essentially knurled processing on the outer peripheral surface of the roller in order to improve the frictional force due to the characteristics of the roller for pressing the guide rail. Therefore, there was a closed end where fatal damage occurred on one surface of the guide rail by the knurled surface of the roller during the emergency stop of the elevator car.

In addition, as described above, damage to one surface of the guide rail is caused by the knurling surface, thereby causing a problem of vibration of the elevator car during the operation of the elevator car or during another emergency stop action.

Moreover, the above-mentioned other conventional emergency stop device for elevators has a problem that the emergency stop action of the elevator car is made by the roller which is somewhat frictional with the brake shoe, so that the emergency emergency stop action more reliably arises.

The present invention has been made to solve the conventional problems as described above, to minimize the damage of the guide rail during emergency stop of the elevator car to extend the life of the guide rail, to prevent the occurrence of vibration of the elevator car in advance. To provide a two-way emergency stop for an elevator.

It is another object of the present invention to provide an elevator two-way emergency stop device for improving the frictional force with the guide rail for emergency stop the elevator car to make the elevator car more reliably and quickly.

The construction of the present invention for achieving the above object is coupled to the middle plate fixed between the upper and lower plates so as to be transported, the clamping assembly for rubbing the brake shoe with the guide rail by the pressure of the roller, elevator car In the emergency stop device for an elevator comprising a moving device for pressing the guide rail by sliding the roller to the upper or lower portion of the clamping assembly according to the stop of the rope according to the sudden rise and fall of the clamping assembly, the middle plate A body coupled to the coupling hole of the body so as to be transported, and having a rail groove formed in the center thereof; A clamp fixed to one side of the rail groove, wherein a spring groove is formed on one side and a bottom thereof, and the protrusion is gradually inclined toward the center of the one surface; A roller assembly which is slidably moved in surface contact with a lower surface of the clamp on one side of the clamp; A return spring returning the moved roller assembly by fixing both ends to the spring groove and the roller assembly, respectively; A respective brake brake configured to slide upward and downward on one surface of each roller assembly to press the guide rail; A guide plate which is installed to cover the front of the movable brake shoe, and guides guide pins formed on the movable brake shoe by inclining guide grooves on upper and lower sides thereof; A fixed brake shoe fixed to protrude on the other surface of the rail groove to be rubbed on the other surface of the guide rail; Operated only when a certain force or more is applied, it is characterized in that it comprises a clamping assembly safety device that serves to limit the transfer of the body and at the same time return the transferred body.

In addition, the body is formed on the rail groove one side, the bottom of each of the moving grooves formed by forming a projection between the moving grooves, the moving brake shoe is formed by protruding each stopper block at the bottom end, the stopper block on the barrier It is characterized in that it can be caught.

In addition, the roller assembly is provided with a plurality of rollers and support rods sequentially and sequentially between both connecting frames, characterized in that connecting the ends of the return spring by forming a ring groove around the center of any one of the plurality of support rods do.

Furthermore, the moving device unit includes an operation link to which both ends of the rope are connected; Upper and lower legs rotatably mounted in the center of the operation link, wherein one end of the upper and lower legs is connected to guide pins of the moving brake shoe, respectively; A return spring connected between the stopper pins formed on the other side of the upper and lower legs to return the rotated upper and lower legs; A gap retaining link rotatably mounted in the center of the operation link, the gap retaining link maintaining a gap between the stopper pins; The gap retaining link is fixed to the side portion of the middle plate so as to rotate about its end, characterized in that it comprises a bracket connected to the gap retaining link end.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

4 to 9b illustrate the two-way emergency stop device for an elevator of the present invention, and the middle plate 240 between the upper and lower plates 200 and 220, the clamping assembly, the moving unit, and the linkage device. It consists of wealth.

First, the middle plate 240 is formed in an approximately "c" shape, and is fixed between the upper plate 200 and the lower plate 220, the upper plate 200 is fixedly coupled to both sides of the bottom of the elevator car. .

The front of the middle plate 240 is formed with a coupling hole 260 is coupled to the clamping assembly to be described later, the coupling hole 260 is a transverse direction of the hole so that the clamping assembly can be transferred to the left, right by a predetermined interval (L, R) Make the length somewhat longer.

The clamping assembly, which is one of characteristic features of the present invention, is to friction the brake shoe with the guide rails G by the pressurization of the roller 334, and the body 300, the clamp 320, and the roller assembly 330 again. And a return spring 340, a movable brake shoe 350, a guide plate 360, a fixed brake shoe 370, and a clamping assembly safety device.

5 to 7b, the body 300 is coupled to the coupling hole 260 of the middle plate 240 so as to be movable at a predetermined interval, and the guide rail G passes through the center of the body 300. A rail groove 310 is formed, and a clamp 320 is inserted into one side of the rail groove 310 to fix the rail groove 310. At this time, on one side of the clamp 320, the bottom is formed with a spring groove 325, respectively, between the spring groove 325 is formed to be gradually inclined toward the center.

In addition, the inclined clamp 320 has a roller assembly 330 which is slidably moved upwards or downwards in a surface contact state on one side of the inclined clamp 320, and a part of the roller assembly 330 and the spring groove 325 are returned. Both ends of the spring 340 are connected to each other to return the moved roller assembly 330 to its original position.

In this case, the roller assembly 330 will be described in more detail. The roller frame 334 and the support rod 336 are sequentially provided between the connecting frame 332 before and after the connecting frame 332, respectively. Repeatedly provided with a large number. And, by forming an annular groove 337 around the center of any one of the support rods 336 adjacent to the spring groove 325 of the plurality of support rods 336 by hooking one end of the return spring 340, the roller assembly 330 can be restored.

At this time, one of the rollers 334 installed in the direction of the return spring 340 of the roller 334 on one side of the support bar 336 is not installed for smooth elastic action of the return spring 340.

Subsequently, the other surfaces of the respective roller assemblies 330 are provided with movable brake shoes 350 which can slide upward or downward to rub the guide rails G, respectively. Such, each of the mobile brake shoe 350 is formed to protrude a plurality of guide pins 352 in the central portion and the end, respectively, to be connected to the end of the scissors link 410 to be described later.

In addition, a stopper block 354 is formed at an end of the bottom surface of the moving brake shoe 350, and a moving groove 312 is formed on one side and a lower side of the rail groove 310 of the body 300, respectively. By forming the barrier 314 between the 312, each stopper block 354 may be configured to be caught by the barrier 314 when the mobile brake shoe 350 moves up and down.

In addition, a guide plate 360 is installed on the front surface of the movable brake shoe 350 to cover not only the movable brake shoe 350 but also the clamp 320 and the roller assembly 330.

The guide plate 360 is formed on one side of the guide plate 360, the lower side of the guide groove 362 inclined at the same inclination of the surface of the clamp 320, the movable brake shoe 350 in the guide groove 362 By inserting the guide pin 352 formed, it guides the movement of the upper and lower movement of the brake brake 350, and serves to prevent the movable brake shoe 350 is separated to the outside.

Subsequently, a part of the fixed brake shoe 370 is fixed to the inside of the other side of the rail groove 310 so that the movable brake shoe 350 presses one surface of the guide rail G by the roller assembly 330. On the fixed brake shoe 370, the other surface of the guide rail G may be rubbed.

At this time, the body 300, as described above, the moving brake shoe 350 presses the guide rail (G) to be transported within the gap of the coupling hole 260, the body 300 and the middle plate ( The operation between 240, but only when a predetermined force or more is applied, restricts the transfer of the body 300, and at the same time install a clamping assembly safety device for the role of returning the transferred body 300.

7A and 7B, the clamping assembly safety device will be described. A fixing plate 380 is bolted to the inside of the front side of the middle plate 240 together with the body 300, and the fixing plate 380 is attached to the fixing plate 380. The leaf spring 390 is mounted. At this time, the leaf spring 390 is provided in contact with the inner side of the middle plate 240 side portion 250 in a tensioned state, thereby continuously applying a tensile force to the body 300 to limit the free movement of the body 300 At the same time, it is possible to smoothly return the transferred body 300.

Next, the moving device unit, which is one of the characteristic features of the present invention, presses the guide rails G by slidingly moving the upper or lower portion of the clamping assembly according to the stop of the rope R according to the sudden rise and fall of the elevator car. To play a role, it is composed of the operation link 400, the scissors link 410, the return spring 420, the space maintaining link 430, and the bracket 440.

5 to 6c, first, both ends of the rope R connected to the governor are respectively connected to the upper and lower ends of the operation link 400, and the scissors link 410 is formed at the center of the operation link 400. The upper and lower legs 410a and 410b constituting each of the upper and lower legs 410a and 410b are rotatably mounted, respectively, and the flow holes 412 are formed at one end of the upper and lower legs 410a and 410b, respectively. It is inserted into each of the guide pins 352.

In this case, the flow holes 412 formed in the upper and lower legs 410a and 410b are formed to be somewhat longer in the left and right directions so that the guides are rotated when the upper and lower legs 410a and 410b are rotated. The fin 352 can be freely flowed in the flow hole 412.

The stopper pins 414 are mounted at the other ends of the upper and lower legs 410a and 410b, respectively, and both ends of the return springs 420 are connected to the stopper pins 414, respectively. The moving brake shoe 350 connected to the lower legs 410a and 410b and the upper and lower legs 410a and 410b and moved upward or downward is returned to the original position before the action.

In addition, the upper and lower legs (410a, 410b) between the stopper pin 414 of the other end front surface is provided with a gap maintaining link 430, one end of the gap maintaining link 430 is the center of the operation link 400 It is mounted rotatably in At this time, the bracket 440 is fixed to the side part 250 of the middle plate 240, and the other end of the gap maintaining link 430 is rotatably coupled to the bracket 440.

The linkage unit serves to connect the mobile unit installed on both sides so as to simultaneously clamp the guide rail (G) provided on both sides of the elevator car, it is composed of a connection bar 500 and the connection bar safety device.

8A, 8B and 9A and 9B, the connecting bar 500 is fixed to an end portion of the gap maintaining link 430 provided at both sides thereof, and can be pivoted together with the pivoting action of the gap maintaining link 430. Is configured. At this time, the connecting bar 500 is provided with a rectangular shape.

In addition, the connection bar 500 is operated only when a predetermined force or more is applied, the connection bar safety device portion of the role of restoring the connection bar 500 is rotated at the same time limiting the rotation of the connection bar 500 Will install more.

When explaining the connection bar safety device, the upper and lower adjustment plates 510 and 520 are respectively installed on a part of the bracket 440 fixed to the side plate 250 of the middle plate 240 and the upper and lower adjustments. The upper and lower ends of the connection bar 500 are provided between the plates 510 and 520, respectively. Then, the upper and lower adjustment plates 510 and 520 are coupled to the ends using bolts B and nuts N. At this time, the bolts B are coupled using long ones. .

Then, by inserting the compression spring 530 in the tension state in the bolt (B) portion between the nut (N) and the lower adjustment plate 520, it was possible to continuously press the connection bar 500 of the square.

Referring to the operation and effect of the present invention configured as described in detail as follows.

When an emergency situation such as descent and fall of an elevator car occurs in the structure of an elevator in which an elevator bidirectional emergency stop device 100 of the present invention is installed, the rope R connected to the governor 600 shown in FIG. As the elevator car continues to descend, the operation link 400 is pulled up by the weight of the elevator car as shown in FIG. 6B.

When such an action occurs, the gap maintaining link 430 coupled with the operation link 400 lifts the other end with respect to one end coupled to the bracket 440 and raises the scissors link 410 and guides the guide. The upper and lower legs 410a and 410b connected to the pins 352 are bunched upward along the guide grooves 362, and the lower moving brake shoe 350 is upper along one surface of the roller assembly 330. As soon as it is sliding sliding.

At this time, the roller assembly 330 is provided on the inclined surface of the clamp 320, the lower moving brake shoe 350 is sandwiched between the roller assembly 330 and the guide rail (G) and gradually guide rail (G). The frictional force is generated while pressing a strong force. Since the guide pin 352 at the center of the movable brake shoe 350 is caught by the guide groove 362, the movable brake shoe 350 is not excessively moved upward. It is possible to smoothly press the guide rail (G) without.

By the pressing action, the body 300 coupled to the coupling hole 260 of the middle plate 240 is transferred in the transverse direction by a predetermined interval. Therefore, as shown in FIG. 8B, while the guide rail G is strongly rubbed on the moving brake shoe 350 and the fixed brake shoe 370 provided on both sides of the body 300, the emergency car can be rapidly stopped by falling and falling. It can be.

On the other hand, when the elevator car suddenly rises, the rope R connected to the governor 60 shown in FIG. 4 is stopped and the elevator car continues to ascend, thereby operating by the weight of the elevator car as shown in FIG. 6C. Link 400 is pulled down.

When such an action occurs, the gap maintaining link 430 is coupled to the operation link 400 is dropped to the other end around the one end coupled to the bracket 440 while lowering the scissors link 410, the guide The upper and lower legs 410a and 410b connected to the pins 352 are bunched downward along the guide grooves 362 and the upper movable brake shoe 350 is lowered along one surface of the roller assembly 330. As soon as it is sliding sliding.

Thereafter, the upper moving brake shoe 350 presses the guide rails G by the same action as in the case of the above-mentioned descent and fall of the elevator car, and the body 300 is transferred by the pressing action. As shown in FIG. 8B, the mobile brake shoe 350 and the fixed brake shoe 370 are strongly rubbed to the guide rail G. Therefore, the rapidly rising elevator car can be quickly stopped.

As such, the emergency stop device 100 for clamping the guide rails G simultaneously clamps the guide rails G installed on both sides of the elevator car. That is, as shown in Figures 8a to 9b, when the emergency stop device 100 of one side is operated by rotatably fixing the connection bar 500 between the space maintaining link 430 installed on both sides of the elevator car Emergency stop device 100 is also to be operated together.

In addition, the emergency stop device 100 is operated only when a predetermined force or more is applied, and thus the stop device 100 is not malfunctioned, and a plurality of safety devices are installed so that the operated parts can be restored again.

That is, as shown in Figure 6a to 6c, by mounting the return spring 340 in a tension state between the spring groove 325 and the roller assembly 330 of the clamp 320, indiscriminate sliding movement of the roller assembly 330 At the same time it is possible to smoothly return the roller assembly 330 sliding conveyed in an emergency.

In addition, by attaching the return spring 420 in a tension state between one side of the upper and lower legs 410a and 410b constituting the scissors link 410, a movement connected to the upper and lower legs 410a and 410b. It is possible to prevent the indiscriminate sliding movement of the brake shoe 350 and at the same time smoothly return the movable brake shoe 350 which is slid and moved in an emergency.

In addition, as shown in Figure 7a and 7b, by mounting the leaf spring 390 in a tension state between the inner side of the side portion 250 and the fixed plate 380 of the middle plate 240, indiscriminate transverse direction of the body 300 It is possible to smoothly return the body 300 is transferred in an emergency while preventing.

In addition, as shown in Figure 9a and 9b by connecting the compression spring 530 to the outside of the bracket 440 fixed to the side portion 250 of the middle plate 240 so as to contact the connecting bar 500, the connecting bar, It is possible to smoothly return the connection bar 500 rotated in an emergency while preventing free rotation of the 500.

Accordingly, the two-way emergency stop device 100 for an elevator of the present invention strongly rubs the moving brake shoe 350 and the fixed brake shoe 370 on the guide rail G according to the movement of the upper and lower portions of the moving brake shoe 350. In this case, the elevator car can be quickly stopped, and the rope R connected to the governor 60 is fixed to the upper and lower ends of the operation link 400, respectively, so that the elevator car can be quickly stopped and dropped. It can be stopped safely and safely.

In particular, the two-way emergency stop device for an elevator of the present invention is that the actuation of pressing the guide rail (G) is not the knurled roller conventionally pressurized by the brake brake 350, the guide rail (G) by the knurled marks ) Can be prevented from being damaged.

In addition, as described above, the guide rail G is not damaged even during the emergency stop of the elevator car, so that the elevator car can be stopped more reliably and accurately without any vibration or shaking of the elevator car even during another emergency stop action. will be.

Furthermore, the two-way emergency stop device for an elevator of the present invention by pressing and rubbing the guide rail (G) is made simultaneously by the moving brake shoe 350 and the fixed brake shoe 370 with good friction as described above, the elevator The braking performance of the car can be improved and the elevator car can be stopped more quickly.

In addition, the two-way emergency stop device 100 for the elevator of the present invention can be clamped by the guide rail (G) on both sides by installing a link device between each emergency stop device 100 installed on both sides of the elevator car bottom. By doing so, it is possible to stop the elevator car without vibrating or biasing in one direction, thereby exhibiting superior braking performance, thereby reducing the anxiety of the passengers and preventing the occurrence of another accident in advance.

In addition, the two-way emergency stop device 100 for the elevator of the present invention by installing a plurality of safety devices to prevent the stop device 100 is operated sensitively by the slight vibration or operation during operation, the stop device 100 It is possible to operate the elevator more smoothly by reducing malfunctions of the elevator, thereby minimizing complaints of passengers using the elevator.

On the other hand, the present invention has been described in detail only with respect to the specific examples described above it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, it is natural that such variations and modifications belong to the appended claims. .

As described above, the present invention is to pressurize the guide rail is not a knurled roller as in the prior art by pressing the moving brake shoe, it is possible to prevent the guide rail from being damaged by the knurled marks to extend the life of the guide rail In addition, the prevention of damage to the guide rail also allows the elevator car to be stopped more reliably and accurately without any vibration or shaking of the elevator car during another emergency stop action.

In addition, as described above, the act of pressurizing and rubbing the guide rail is simultaneously performed by the mobile brake shoe and the fixed brake shoe having excellent frictional force, thereby improving the braking performance of the elevator car, and thereby stopping the elevator car more quickly and accurately. There is also an effect.

In addition, by installing a number of safety devices to prevent the operation of the stop device sensitively by a slight vibration or operation during operation, it is possible to reduce the malfunction of the stop device to operate the elevator more smoothly, according to the elevator It also has the effect of minimizing passenger complaints.

Claims (4)

Clamping assembly for coupling the upper plate to both sides of the bottom of the elevator car, while being coupled to the middle plate fixed between the upper plate and the lower plate so as to transport the brake shoe to the guide rail by pressing the roller, and the elevator car In the emergency stop device for an elevator comprising a moving device for pressing the guide rail by sliding the roller to the upper or lower portion of the clamping assembly in accordance with the stop of the rope according to the sudden rise and fall of, The clamping assembly is, A body 300 coupled to the coupling hole 260 of the middle plate 240 so as to be transported, and having a rail groove 310 formed in the center thereof; A clamp 320 fixed to one side of the rail groove 310 and having a spring groove 325 formed on one side and a bottom thereof, and gradually inclined to protrude toward the center of the one surface; A roller assembly 330 which is slidably moved in surface contact with a lower surface of the clamp 320, which is formed to be inclined; A return spring 340 for returning the moved roller assembly 330 by fixing both ends to the spring groove 325 and the roller assembly 330, respectively; A respective movement brake shoe 350 provided to slide upward and downward on one surface of each roller assembly 330 to press the guide rail G; The guide plate which is installed to cover the front of the mobile brake shoe 350, the guide groove 362 is inclined on the upper side, the lower side, respectively, to guide the guide pin 352 formed on the mobile brake shoe 350 ( 360; A fixed brake shoe 370 which is fixed to protrude on the other surface of the rail groove 310 to be rubbed on the other surface of the guide rail G; The elevator is operated only when a predetermined force or more is applied, the two-way emergency stop device for an elevator comprising a clamping assembly safety device that serves to limit the transfer of the body 300 and at the same time return the transferred body (300). According to claim 1, The body 300 is formed on each side of the rail groove 310, the moving groove 312 in the lower portion to protrude and form the barrier 314 between the moving groove 312, the movement The brake shoe 350 is formed by protruding stopper blocks 354 at the bottom end, so that the stopper block 354 can be hung on the barrier 314. The method of claim 1, wherein the roller assembly 330 is provided with a plurality of the roller 334 and the support rod 336 by sequentially repeating between the two connecting frame 332, any one of the plurality of support rods 336 An elevator bidirectional emergency stop device, characterized in that for connecting the end of the return spring 340 by forming a ring groove (337) around the center of the support bar (336). The method of claim 1, wherein the moving unit An operation link 400 connected to both ends of the rope R; The upper and lower legs 410a and 410b are rotatably mounted in the center of the operation link 400, and one end of the upper and lower legs 410a and 410b is guide pins of the movable brake shoe 350. Scissors-links 410 respectively connected to 352; A return spring 420 connected between the stopper pins 414 formed on the other side of the upper and lower legs 410a and 410b to return the rotated upper and lower legs 410a and 410b; A gap maintaining link 430 mounted rotatably at the center of the operation link 400 to maintain a gap between the stopper pins 414; The gap maintaining link 430 is fixed to the side portion 250 of the middle plate 240 so as to rotate about its end, characterized in that it comprises a bracket 440 connected to the end of the gap maintaining link 430 Two way emergency stop for elevator.

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