阅读说明：本技术 线缆型升降装置 (Cable type lifting device ) 是由 沈成守 李宇濬 姜秉武 于 2017-12-21 设计创作，主要内容包括：本发明涉及线缆型升降装置,更详细而言涉及在上升和下降的动作过程中即便实现电控制的制动器发生了破损也能够以机械方式安全地调节降落速度的线缆型升降装置。本发明的线缆型升降装置包括：电子式制动装置,卷取移送用线缆,通过动力使所述线缆上下移动；和机械式制动装置,以机械方式使所述移送用线缆上下移动,该线缆型升降装置的特征在于,所述机械式制动装置包括：解除锁定杆,在一定旋转范围量内通过外部力而旋转；连接部,与所述解除锁定杆连接,并与所述解除锁定杆的旋转联动地前进一定量；旋转体,与所述连接部前进的量相对应地旋转,并调节施加到所述移送用线缆的施加压力；和止动器,限制所述旋转体的旋转范围,并通过所述旋转体支承施加到线缆的施加压力。(The present invention relates to a cable type lifting device, and more particularly, to a cable type lifting device capable of mechanically and safely adjusting a falling speed even if a brake electrically controlled is damaged during a lifting and falling operation. The cable type lifting device of the invention comprises: an electronic brake device for winding the transfer cable and moving the cable up and down by power; and a mechanical brake device that mechanically moves the transfer cable up and down, wherein the cable-type lifting device includes: a lock release lever rotated by an external force within a certain rotation range; a connecting portion connected to the release locking lever and advancing by a certain amount in linkage with rotation of the release locking lever; a rotating body that rotates in accordance with the amount of advance of the connecting portion and adjusts the application pressure applied to the transfer cable; and a stopper limiting a rotation range of the rotating body and supporting an applying pressure applied to the cable by the rotating body.)

1. A cable-type lifting device comprising: an electronic brake device for winding the transfer cable and moving the cable up and down by power; and a mechanical brake device for mechanically moving the transfer cable up and down, the cable-type lifting device being characterized in that,

the mechanical brake device includes:

a lock release lever rotated by an external force within a certain rotation range;

a connecting portion connected to the release locking lever and advancing by a certain amount in linkage with rotation of the release locking lever;

a rotating body which rotates clockwise according to the advancing amount of the connecting part and adjusts the applying pressure applied to the transferring cable; and

a stopper limiting a rotation range of the rotating body and supporting an applying pressure applied to the cable by the rotating body.

2. Cable-type lifting device according to claim 1,

the lock release lever has a slit formed in a longitudinal direction thereof, and is configured to be movable up and down in the longitudinal direction of the slit.

3. Cable-type lifting device according to claim 1,

the stopper is configured to have a shape through which the cable passes, and the cable passing through the stopper is pressurized by the rotating body.

4. Cable-type lifting device according to claim 3,

the rotating body is configured to rotate back and forth in a rotation range restricted by the stopper in conjunction with the rotation of the lock release lever.

Technical Field

The present invention relates to a cable type lifting device, and more particularly, to a cable type lifting device capable of mechanically and safely adjusting a falling speed even if a brake electrically controlled is damaged during a lifting and falling operation.

Background

There are many high-rise buildings with 15 floors or more in korea, and when a fire breaks out in such high-rise buildings, it is difficult to quickly cope with the suppression of the fire using the current korean domestic fire fighting equipment or fire fighting technology.

Therefore, various methods for evacuating people when a fire breaks out in a high-rise building have appeared, and one of the methods may be a lifting device using a cable.

The cable type lifting device is an engine type power lifting device, and is used for evacuating people using a cable or a rope when a dangerous situation occurs.

The cable type lifting device can help people to evacuate from a fire scene to a safe place by using a cable when a dangerous situation such as a fire occurs in high-rise buildings such as high-rise houses and buildings. This is because, when a person hangs on the cable of the cable-type lifting device, the cable gradually descends to the ground side and moves to a safe place, thereby realizing evacuation.

For example, korean laid-open utility model No. 1998 and 026059 discloses a structure of a descent control device, which comprises: a cable; a trolley for reeling the cable; a deceleration unit for decelerating the rotational speed of the carriage; a coupling plate for coupling the cable, the pulley, and the speed reducer; and a cover plate coupled in an upper direction of the coupling plate, etc.

Further, korean registered patent No. 1311643 discloses a configuration in which a deceleration effect is given by a V-brake, and even when a person with a high body weight is caught on a deceleration wheel, a load similar to that of a person with a low body weight is received, so that even a person with an excessive body weight can be slowly lowered at a low speed similar to that of a person with a low body weight, and the fatigue of other parts of a descent control device is reduced because the V-brake bears a part of the weight of an evacuee, so that the descent control device can be used for a long time.

However, the descent control device is installed only in a building having 10 floors or less, and is actually used only in a very low frequency because a method of use or carelessness of management is not known when a fire breaks out, and thus, in most cases, rescue by a firefighter or an additional fire fighting device is used.

At this time, the rescue method based on the firefighter or the fire fighting device is largely divided into a method using a high-priced aerial ladder fire truck and a cable method based on the firefighter, and the high-priced aerial ladder fire truck has many inconveniences (illegal parking, space between buildings, characteristics of building structures) due to the construction structure and characteristics in korea, and many times, it takes much time to cope with an emergency rescue situation because of these reasons.

In addition, cable-based rescue methods mainly use cables or drums, and require manual lowering and stopping, and thus require a considerable muscle force and are dangerous.

However, the above-described method using a cable or a drum has an advantage in convenience in transportation and use of equipment, and thus is widely used in other rescue sites.

For example, in the case of using a tripod drum in a shaft-dropping accident site, there is a disadvantage that a plurality of persons need to support the tripod drum, and in addition, in a hill rescue site, survivors need to be rescued by using the drum, but in this case, considerable muscle strength of rescuers is also required, and 2 to 3 persons are required to pull the wounded person at minimum, so that there is a difficulty.

Disclosure of Invention

(problem to be solved)

The present invention has been made to overcome the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a cable type lifting device which can rapidly lift or lower a user by using a driving force of a motor or an engine.

Another object of the present invention is to provide a cable type lifting device capable of mechanically and safely adjusting a falling speed even if a brake electrically controlled is damaged during a lifting operation and a falling operation.

(means for solving the problems)

In order to solve the above-described problems, a cable type lifting device according to an embodiment of the present invention includes: an electronic brake device for winding the transfer cable and moving the cable up and down by power; and a mechanical brake device that mechanically moves the transfer cable up and down, wherein the cable-type lifting device includes: a lock release lever rotated by an external force within a certain rotation range; a connecting portion connected to the release locking lever and advancing by a certain amount in linkage with rotation of the release locking lever; a rotating body that rotates in accordance with the amount of advance of the connecting portion and adjusts the application pressure applied to the transfer cable; and a stopper limiting a rotation range of the rotating body and supporting an applying pressure applied to the cable by the rotating body.

Preferably, the lock release lever has a slit formed in a longitudinal direction thereof, and is configured to be movable up and down in the longitudinal direction of the slit.

Preferably, the stopper is configured to have a shape through which the cable passes, and the cable passing through the stopper is pressurized by the rotating body.

Preferably, the rotating body is reciprocally rotated in conjunction with the rotation of the release lock lever within a rotation range limited by the stopper.

(effect of the invention)

The cable type lifting device according to the present invention constitutes a double safety device so that the lifting operation can be performed by the mechanical brake device even if a problem occurs in the electronic brake device. In particular, the cable type lifting device according to the present invention is configured to be applicable to high-rise buildings and dangerous situations such as fire, and thus, it is possible to move a person to a safe place very efficiently by moving a cable up and down by mechanical control even in a situation where electrical control is not possible.

Drawings

Fig. 1 is a perspective view of the entire cable-type lifting device according to the present invention as viewed from the left side.

Fig. 2 is a perspective view of the entire cable-type lifting device according to the present invention, as viewed from the right side.

Fig. 3 and 4 are structural views for explaining a mechanical brake device in the cable type lifting device according to the present invention.

Fig. 5 is a sectional view illustrating a mechanical brake device in the cable type lifting device according to the present invention, illustrating a locked state.

Fig. 6 is a cross-sectional view illustrating a mechanical brake device in the cable type lifting device according to the present invention, showing an unlocked state.

Fig. 7 is a detailed configuration diagram illustrating a lock lever for removal in the cable type lifting device according to the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, and the same or similar components will be denoted by the same reference numerals regardless of their signs, and redundant description thereof will be omitted. The modified parts "portion" and "member" of the constituent elements used in the following description are added only in consideration of ease of writing of the description, and do not have any meaning or function by themselves.

In describing the embodiments disclosed in the present specification, when it is determined that specific description of the related known art may affect the gist of the embodiments disclosed in the present specification, detailed description thereof will be omitted. The drawings are only for the purpose of facilitating understanding of the embodiments disclosed herein and are not intended to limit the technical ideas disclosed herein, but it should be understood that the technical ideas disclosed herein include all modifications, equivalents, and alternatives included in the ideas and technical scope of the present invention.

The terms including order, such as first, second, etc., may be used to describe various elements, but the elements are not limited to the terms. The above terms are used only for the purpose of distinguishing one constituent element from another constituent element.

When a certain component is referred to as being "connected" or "in contact with" another component, it may be directly connected or in contact with the other component, but it is understood that the other component may exist therebetween, and on the contrary, when a certain component is referred to as being "directly connected" or "in direct contact with" another component, it is understood that the other component does not exist therebetween.

An expression in the singular may include an expression in the plural unless it is explicitly stated differently in the sentence pattern.

In the present application, the terms "including" or "having" are used to indicate the presence of the features, numerals, stages, actions, components, parts, or combinations thereof described in the specification, and are not intended to exclude the presence or addition of one or more other features, numerals, stages, actions, components, parts, or combinations thereof in advance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Fig. 1 is a perspective view showing the entire cable type lifting device according to the present invention as viewed from the left side. Fig. 2 is a perspective view showing the entire cable type lifting device according to the present invention as viewed from the right side.

The cable type lifting device of the present invention is a device in which an engine or a motor is directly mounted in a driving part 1, and a load within a certain weight range is safely lifted or lowered based on power generated by the engine. The drive unit 1 includes a motor, a clutch connected to a rotating shaft of the motor, and a brake.

Preferably, the prime mover is implemented by an electric motor or an engine, and the engine is applied when a strong driving force is required, and the electric motor is applied when a heavy object having a relatively small weight is transferred in consideration of convenience of use.

The clutch and the brake are preferably configured to be operated by a control module 5 described later by applying an electronic system, and if necessary, the configuration may further include a configuration in which the control module 5 performs operations of the clutch and the brake by a user's operation.

The cable type lifting device of the present invention includes a cable drum 19 connected to an output shaft of the driving unit 1 to rotate, and a cable 21 for lifting or lowering the cable type lifting device of the present invention is wound around the cable drum 19. The cable drum 19 has a pulley structure in which a V-groove is formed on a side surface thereof, and if necessary, a high-low portion or the like for increasing friction with the cable 21 is formed on an inner surface of the pulley groove.

Accordingly, the wire 21 is wound around the wire drum 19, and the wire drum 19 is rotated by the driving force of the driving unit 1, thereby raising or lowering the wire-type lifting device of the present invention.

The cable-type lifting apparatus of the present invention, which operates as described above, is mounted with a double safety device including the electronic brake device 15 and the mechanical brake device 9. The electronic braking device 15 is configured to be controlled by the control module 5.

The electronic brake device 15 is configured to electrically control a clutch and a brake inside the driving unit 1, and controls the ascending and descending, stopping, and the like of the cable type lifting device according to the present invention.

The electronic brake device 5 is equipped with a function of limiting a load to be applied and a speed limit function for preventing sudden lowering. In an embodiment of the invention the maximum allowable weight is 250kg, but the load suitable for lifting and lowering is preferably within 120 kg. The maximum value of the rising speed when the electronic brake device 5 is raised is preferably 0.26m/s, and the maximum value of the falling speed when the electronic brake device is lowered is preferably 0.3 m/s. The ascending speed and the descending speed are examples of the case where the load is 120 kg.

The control module 5 receives detection signals and the like from a load sensing device 13 that senses a load of the load mounted on the cable-type lifting device using a load sensor and the like, a lowering speed measuring device 11 that measures speed and direction using a magnetic sensor and the like, and the RFID module 7 and the like, and generates signals for controlling the raising, lowering, and stopping operations of the electronic brake device 15.

The cable-type lifting device of the present invention further includes a battery 3, and the battery 3 is used to supply power to an electric device requiring electricity, including the control module 5 and the electronic brake device 15.

Thus, the control module 5 controls the ascending and descending operations of the cable type lifting device of the present invention at an appropriate speed by the electronic braking device 15 based on the detection signals of the load sensing device 13 and the descending speed measuring device 11. In this case, the control module 5 may perform control to decrease the speed when the speed is increased to a predetermined speed or more based on the detection value of the decrease speed measuring device 11.

On the other hand, the mechanical brake device 9 is a mechanical control structure that can move the cable type lifting device up and down without using the electronic brake device 5. Therefore, the mechanical brake device 9 is mechanically adjusted to ascend and descend in an emergency such as a break in the brake function of the electronic brake device 5.

Fig. 3 and 4 show a state of the brake attached to the transfer cable at the time of the ascending operation and the descending operation of the conventional mechanical brake device.

The illustrated mechanical brake device includes: a support portion 22 through which the transfer cable passes; a rotating body 26 that pressurizes the cable 21 in order to restrict movement of the cable 21 through the support portion 22; and a stopper 24 for restricting the rotation of the rotating body 26 in the upper direction.

According to this configuration, as shown in fig. 3, the cable 21 should be moved in the arrow direction in order to be lifted by the cable type lifting device. At this time, a certain zigzag shape is formed toward the lower side in a portion where the rotating body 25a engages with the cable 21. Accordingly, the cable 21 is not restricted by the rotating body 25a when moving downward from the upper portion.

However, as shown in fig. 4, in order to lower the cable type lifting device, the cable 21 should be moved from the lower portion to the upper portion. At this time, if the movement of the cable 21 is free, a person who is in the air together with the cable-type lifting device may instantaneously fall down to the ground, which may cause a very dangerous situation.

Therefore, in the cable-type lifting device according to the present invention, in an emergency where the electronic brake device fails, the movement of the cable 21 from the lower portion to the upper portion is automatically brought into a very restricted state as shown in fig. 4. That is, the rotation of the rotating body 25a to the upper portion is restricted by the stopper 24, and the state is such that the pressure applied to the cable 21 by the rotating body 25a is maximum. Further, the serration shape formed to be constant in the downward direction at the portion where the rotating body 25a engages with the cable 21 has an effect of further suppressing the movement of the cable 21 from the lower portion to the upper portion.

In such a state, in order to mechanically move a little by little to safely descend to the ground, an action of slightly reducing the applied pressure applied to the cable 21 is required.

Fig. 5 is a sectional view illustrating a mechanical brake device in the cable type lifting device according to the present invention, illustrating a locked state. Fig. 6 is a cross-sectional view illustrating a mechanical brake device in the cable type lifting device according to the present invention, showing an unlocked state.

As shown in fig. 5, the mechanical brake device 9 of the present invention can mechanically press the wire 21 wound around the wire drum 19 so as not to move. Further, as shown in fig. 6, the mechanical brake device 9 of the present invention can slightly release the degree of pressurization of the wire 21 to gradually move the wire by only a certain amount.

The mechanical brake device 9 of the present invention includes, in a base (not shown) for supporting the entire device: a support portion 24 for supporting the mechanical brake device 9; an unlocking lever 23 that rotates within a range of approximately 180 degrees above the support portion 24; and a rotating body 25 supported by the support portion 24 and pressing the wire 21 by the rotation of the release lock lever 23.

Further, the mechanical brake device of the present invention includes: a coupling portion 31 coupled to the release locking lever 23 and rotating the rotating body 25 clockwise by a predetermined amount by advancing forward by a predetermined amount by rotation of the release locking lever; and a stopper 29 for restricting the rotation of the rotating body 25.

More specifically, the support portion 24 is configured to fixedly attach the mechanical brake device to a base. The support portion 24 integrally supports the mechanical brake device 9 on the base.

As shown in fig. 5 and 6, the lock release lever 23 is configured to be rotatable within a range of approximately 180 degrees from the upper portion to the lower portion. The lock release lever 23 is in the locked state when it is located at the position of fig. 5, and the lock release lever 24 is in the unlocked state when it is located at the position of fig. 6.

The coupling portion 31 is coupled to the release lock lever 23, and when the release lock lever 23 is rotated 180 degrees downward, the coupling portion moves forward in the arrow direction and rotates the rotating body 25 clockwise by a predetermined amount.

Fig. 7 shows the relationship of the release lock lever 23 and the connecting portion 31 in more detail.

The lock release lever 23 is formed in a shape having a slit formed in a longitudinal direction thereof, and a member inserted into the slit to rotate together with the rotation of the lock release lever 23 is illustrated as a coupling portion 31. That is, the lock release lever is formed with a slit in a longitudinal direction thereof, and is configured to be movable up and down in the longitudinal direction of the slit.

That is, the coupling portion that maintains the inserted state in the gap rotates together with the 180-degree rotation of the release lock lever 23, and the fastening position of the screw of the coupling portion 31 changes in conjunction with the rotation operation, and as a result, the tip portion of the coupling portion that engages with the rotating body advances by a predetermined amount in the arrow direction.

When the lock release lever 23 is rotated by 180 degrees, the position of the lock release lever is moved downward as shown in fig. 6. In this state, when the lock release lever 23 is pushed upward by the slit of the lock release lever 23, the initial state shown in fig. 7 is again achieved, and the reciprocal rotation of the lever is realized.

That is, the unlocking lever shown in the figure does not need to secure a space for rotation of the lever, the rotation range of the lever is limited to 180 degrees, and the lever returns to the initial state by moving up and down through the slit.

It is important for the interlocking operation of the link 31 and the rotating body 25 to determine the amount of rotation of the rotating body 25 in the clockwise direction in accordance with the amount of forward movement of the link 31. Further, since the rotating body 25 is configured to rotate in the clockwise direction according to the amount of forward movement of the connecting portion 31 and to reduce the pressure applied to the cable 21, when the rotating body 25 rotates in the clockwise direction as shown in fig. 6, the pressure applied to the cable 21 is reduced from that shown in fig. 5.

The stopper 29 is fixedly installed at the supporting portion 24 or the base, limits the amount of rotation of the rotating body 25 in the counterclockwise direction, and is configured to support the applying pressure applied to the cable 21 by the rotating body 25. The stopper 29 has a shape through which the cable 21 passes, and the rotating body 25 pressurizes the cable 21 passing through the stopper 29. The wire 21 having passed through the stopper 29 is wound around the wire drum 19 after one rotation, and the wire is moved from the upper portion to the lower portion or from the lower portion to the upper portion by the rotation of the wire drum 19. A portion of the rotating body 25 engaged with the cable 21 is formed in a zigzag shape facing downward.

The mechanical brake device 9 of the present invention configured as described above operates as follows.

The cable type lifting device of the present invention provides power for the lifting and lowering actions in a state of being hung on the cable 21, and at this time, a person can be lifted or lowered together with the cable type lifting device.

However, when the electronic brake device 15, which controls the ascending and descending operations by the power of the cable-type elevator, fails, the mechanical brake device 5 forcibly controls the state shown in fig. 5 to stop the movement of the cable 21.

That is, the rotation of the rotating body 25 in the counterclockwise direction is restricted by the stopper 29, and at this time, the rotating body 25 strongly presses the cable 21 configured to pass through the stopper 29, thereby suppressing the movement of the cable 21.

In this state, as shown in fig. 6, when the release lock lever 23 is rotated downward, the connecting portion 31 connected to the release lock lever 23 advances by a predetermined amount in the direction of the arrow. The rotating body 25 is pushed while the connecting portion 31 advances, and the rotating body 25 rotates clockwise according to the amount of the advance of the connecting portion 31.

By the above operation, the rotating body 25 is rotated in the clockwise direction within the rotation limit range of the stopper 29, and the applied pressure applied from the rotating body 25 to the cable 21 is reduced by a predetermined amount.

As described above, when the pressing force applied to the cable 21 is reduced by a predetermined amount, the cable can be lowered little by the load of the load constituted by the cable-type lifting device and the person. Of course, in this process, the applied pressure applied to the cable 21 is reduced to a very small extent when compared to fig. 5. Further, since the serration of the rotating body 25 is engaged with the cable 21, the movement of the cable is extremely restricted. However, the cable-type lifting device suspended in the air on the cable, the load of the person and the weight thereof can be lowered slightly toward the ground.

Therefore, by repeatedly performing the process of rotating the release locking lever 23 back and forth within the range of 180 degrees, the process of converting the mechanical brake device from the locked state to the unlocked state is repeatedly performed, and the cable is moved little by little, whereby the cable type lifting device of the present invention can be safely lowered to the ground.

In summary, the above detailed description should not be construed in a limiting sense in all respects, and should be considered exemplary only. The scope of the invention should be determined by reasonable interpretation of the claims and all changes which come within the equivalent scope of the invention are included in the scope of the invention.