KR102170268B1 - Puller For Salvage - Google Patents

Abstract

The present invention is to provide lifting equipment for rescue, which can be simply switched between a manual mode and an automatic mode by one operation so as to quickly enable rescue activity even in an emergency situation without the supply of electricity. That is, the present invention comprises: a main body frame (10) mounted on a structure support (100) and rotatably supporting a winch drum (12); a manual driving unit (20) provided to transmit rotational force of a manual handle (21) through a gear assembly (22) connected to the winch drum (12); and an automatic driving unit (30) including a driven gear (34) provided to be movable along a spline shaft (32) connected concentrically with the winch drum (12), an elastic body (35) pressurizing the driven gear (34) in any one direction, a lever (36) controlling the movement of the driven gear (34) in the other one direction, and a driving gear (38) engaged with the driven gear (34) moved along the spline shaft (32) by the lever (36) so as to transmit the driving force. By using the lifting equipment for rescue with an improved structure in which a winch drum operation system is integrated to be used in both of the manual mode and the automatic mode and thus, an operation mode is simply switched by a one-touch operation, it is possible to quickly perform rescue activity even in a situation without the supply of electricity.

Description

Rescue Lifter {Puller For Salvage}

The present invention relates to a rescue lifter, and in more detail, the present invention relates to a rescue lifter that is simply switched to manual and automatic modes by a single operation to quickly perform rescue activities even in an emergency situation without electricity supply.

In general, a winch device is a device used to lift or lower a heavy object, and is provided to wind up a lifting wire by rotating a winch drum, thereby lifting a hook fixed to the end of the lifting wire, or recommending the lifting wire. Thus, it is used to lower the hook, and is mainly used for lifting heavy objects and for lifesaving used in suffocation accidents of manholes, septic tanks, and oil tankers.

Here, the winch used for rescue is divided into a manual type that can be driven without environmental constraints and an automatic type that uses an electric motor as power, and has both a manual type and an automatic type when the rescue is dispatched. Due to the method of selecting and operating, dispatch delays and response time at the site are delayed.

Accordingly, in the conventionally disclosed registration number 20-0191022, a horizontally through-connected rotary shaft is provided between the two support plates on both sides of the fixing member, and a main winch and an auxiliary winch are installed on the rotary shaft, the main winch A rotating drum is coupled between the first and second guide plates of the first and second guide plates, and one side of the first and second guide plates rotates around a hinge pin that is internally connected to accommodate between the first and second guide plates. A rotating plate is installed so as to be possible, and a plurality of rollers are installed in close contact with the main wire wound on the rotating drum at the bottom of the rotating plate, and an auxiliary wire is connected to the original plate at a position spaced apart from the main winch. The winch is installed to be interlocked with the rotating shaft, and a rotating plate with gears on the outer surface is coupled to interlock with the rotating shaft at a position spaced apart to face the disc. A technology equipped with a power transmission unit equipped with a drive shaft has been previously registered.

In addition, in Publication No. 10-2014-0140332, which is another prior art, a base frame, a drum rotatably connected to the base frame, a motor that generates a rotational driving force so that the drum rotates, and a motor and a drum are installed to be connected, from the motor. A reducer that transmits to the drum while reducing the transmitted rotational speed, is rotatably connected to the base frame so that it reciprocates with respect to the axial direction of the drum around the base frame, and the moving force of the rope when the rope is wound around the drum. As a result of the rotation with respect to the axial direction of the drum, the rope is zigzag wound around the drum, and in FIG. 2, a technique in which a manual handle is provided on the motor rotation shaft has been disclosed.

However, the prior art is a technology in which a drum is manually driven by a motor or a handle is added, but the handle is connected coaxially with the motor, so that a large amount of power is required due to the structural characteristics of driving the motor together when the handle is turned. Operation is impossible, and in order to solve this problem, the structure is improved so that the motor power is transmitted only when necessary by installing a clutch, but this resulted in a complicated structure of the equipment and an increase in weight, resulting in lower portability.

KR 20-0191022 Y1 (2000.05.22.) KR 10-2014-0140332 A (2014.12.09.)

Accordingly, the present invention was conceived to solve the above problems, and the winch drum operation was integrated into a manual mode or an automatic mode, and the structure was improved so that the operation mode was simply switched by one operation, even in an emergency situation without electricity supply. It is an object of the present invention to provide a rescue lifter in which rescue activities are performed quickly, and in particular, due to its small size and weight, it is easy to carry, and thus mobility to a disaster point including lifesaving is improved.

In order to achieve this object, a feature of the present invention includes a main frame 10 mounted on a structural support 100 to rotatably support the winch drum 12; A manual drive unit 20 provided to transmit the rotational force of the manual handle 21 through the gear assembly 22 connected to the winch drum 12; And a driven gear 34 provided to be movable along a spline shaft 32 connected concentrically with the winch drum 12, and an elastic body 35 for pressing the driven gear 34 in any one direction, A lever 36 that controls the movement of the driven gear 34 in the other direction and the driven gear 34 that is moved along the spline shaft 32 by the lever 36 transmits the driving force of the motor 37 An automatic drive unit 30 made of a drive gear 38; It characterized in that it comprises a.

At this time, the gear assembly 22 of the manual drive unit 20 is meshed with the first manual gear 22a and the first manual gear 22a provided concentrically with the winch drum 12 to the manual handle 21 ) Forward rotation of the second manual gear (22b) by meshing with the second manual gear (22b) transmitting the rotational force, the ratchet gear (22c) provided on the rotation shaft of the second manual gear (22b), and the ratchet gear (22c) Consisting of a pole (22d) allowing, the ratchet gear (22c) is inserted into the rotation shaft (22b') of the second manual gear (22b) is fixed by pressure by a friction pad (24), the automatic drive unit (30) ) It is characterized in that it is provided to allow reverse rotation when a rotational force of more than a set torque is applied toward the second manual gear 22b by the operation.

In addition, the manual handle 21 is detachably installed on the rotation shaft 22b' of the second manual gear 22b by coupling the key shaft 21a and the key groove 21b, and is provided on the rear surface of the main frame 10. A key shaft 11 is provided, and when the manual handle 21 is separated, the key groove 21b of the manual handle 21 is provided to be fastened and stored in the multi key shaft 11, and the key groove of the manual handle 21 ( 21b) It characterized in that it is provided so that the tightening bolt 23 is freely rotated in the center, and is provided to be screwed with the tightening nut portion 23a formed in the center of the key shaft 21a and the multi-key shaft 11.

In addition, the driven gear 34 and the driving gear 38 of the automatic power transmission unit 30 are formed of bevel gears, and the driven gear 34 is an inclined cam 36a provided on the lever 36 and inclined. It is provided so as to be moved along the spline shaft 32 by the motion and meshed with the drive gear 38, and the motor 37 is formed as a brake motor and provided so that the winch drum 12 is braked when stopped. It is characterized.

According to the specific means for solving the above-described problem, the present invention enables the winch drum operating system to be easily switched to manual mode or automatic mode by one-touch operation, and thus, excellent utility is excellent, and rescue activities are quick even in emergency situations without electricity supply. To make it happen.

In addition, the lifting device body is compact, and it is easy to carry due to its compact and lightweight structure, thereby improving mobility to a disaster point including life-saving.

Figure 1 is a perspective view showing a state of use of a lift for the structure provided by the present invention.
Figure 2 is an exploded perspective view showing a manual driving unit and an automatic driving unit of the rescue lifter provided by the present invention.
Figure 3 is an enlarged perspective view showing a manual driving unit and an automatic driving unit of the rescue lifter of the present invention.
Figure 4 is a configuration diagram showing an enlarged manual drive of the rescue lifter of the present invention.
5 is an exploded view showing the ratchet gear of the structural lifting device of the present invention.
Figure 6 is a cross-sectional view showing the assembly structure of the lever of the automatic driving unit of the lifting device for the structure of the present invention.
Figure 7 is a block diagram showing the operating state of the automatic drive unit of the rescue lifter of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as matters that are apparent to those skilled in the art with respect to known functions related to the present invention, detailed description thereof will be omitted.

1 is a perspective view showing a use state of a rescue lifter installed on a rescue support, and the rescue lifter provided in the present invention is mounted on one of three rescue supports supported and installed at a rescue point to lift a person. It consists of a main configuration including a main frame 10, a manual drive unit 20, and an automatic drive unit 30 to manually or automatically wind or unwind.

First, the body frame 10 according to the present invention is mounted on the structural support 100 and provided to rotatably support the winch drum 12. The structural support 100 is connected such that at least three lug arms are folded around the central plate as shown in FIG. 1, and is configured to be installed as a stable self-supporting structure when the lug arms are unfolded after moving in a folded state. At this time, a roller is installed on the central plate of the structural support 100, and the winch wire W connected to the one tooth drum 12 descends via the roller and moves to the disaster point.

2 is a perspective view showing an exploded view of the manual drive unit and the automatic drive unit of the rescue lifter provided by the present invention. The main frame 10 is formed in a'C' shape, and the open side is closed by a cover, Here, the main frame 10 is composed of a base plate mounted on the lug arm of the structural support 100 and a pair of side plates provided opposite to both ends of the base plate, and the winch drum 12 is rotatable on the side plate. In addition to being supported, a plurality of shafts required for the operation of the manual drive unit 20 and the automatic drive unit 30 to be described later are installed to be supported.

On the other hand, the body frame 10 is bolted to the lug arm of the structural support 100 or is detachably installed through a fixing bracket mounted on the back surface of the base plate of the body frame 10 as shown in FIG. 2.

3 is an enlarged perspective view showing the manual drive unit and the automatic drive unit of the rescue lifter of the present invention, the manual drive unit 20 of the present invention is a manual handle 21 through a gear assembly 22 connected to the winch drum 12 ) It is provided to transmit rotational force.

One side of the winch drum 12 is provided with a manual drive unit 20, and the other side is provided with an automatic drive unit 30 to be described later, so that the operation of the winch drum 12 is integrated in both manual mode and automatic mode. As it is formed, it is provided to simply switch the operation mode by one-touch operation of the lever 36 to be described later.

In FIG. 4, the gear assembly 22 of the manual drive unit 20 is engaged with the first manual gear 22a and the first manual gear 22a provided concentrically with the winch drum 12 (21) The second manual gear 22b that transmits the rotational force, the ratchet gear 22c provided on the rotation shaft of the second manual gear 22b, and the second manual gear 22b are engaged with the ratchet gear 22c. It consists of a pole 22d that allows forward rotation.

At this time, the forward rotation of the second manual gear 22b is set in the direction in which the winch wire W is wound by the winch drum 12, and the reverse rotation indicates the direction in which the winch wire W is unwound or lowered. .

When the winch wire (W) is reversed, i.e., lowered, the pole (22d) is turned to release the one-way locking state with the ratchet gear (22c), or a rotational force greater than the set torque is applied by the configuration of the friction pad (24) described later. It is provided to allow for reverse rotation.

That is, as shown in FIG. 5, the ratchet gear 22c is inserted into the rotation shaft 22b' of the second manual gear 22b, and is pressed and fixed by the friction pad 24. At this time, the friction pad 24 is formed in a plate shape and is disposed at both ends of the ratchet gear 22c to adjust the pressing force by the fastening nuts, or by inserting an elastic body between the fastening nuts to maintain a constant pressing force corresponding to the wear of the friction pad 24 It is also possible to configure it back.

As a result, only when a reverse rotational force greater than the set torque is applied to the second manual gear 22b by the operating force of the automatic drive unit 30 or the manual handle 21, the ratchet gear 22c and the pawl 22d are stopped by the locking structure. It is configured to allow reverse rotation of the second manual gear 22b.

In addition, when operating in the automatic mode using the automatic drive unit 30 to be described later, the cuts that may occur due to the reverse rotation of the winch drum 12 due to the double braking structure by the brake motor 37 and the friction pad 24 , Rescue equipment) can further increase the safety.

The manual handle 21 is configured to be detachable on the rotation shaft 22b' of the second manual gear 22b by combining the key shaft 21a and the key groove 21b, so that the winch drum 12 can be driven in an automatic mode. When the manual handle 21 is separated so that the manual handle 21 rotates at high speed, it does not cause harm to the surrounding workers.

In the manual mode, the keyway 21b formed inside the shaft support portion of the manual handle 21 and the rotation shaft 22b' of the second manual gear 22b meshed therewith are hexagonal or polygonal as shown in the figure. Have a cross section.

In addition, a multi-key shaft 11 is formed on the back surface of the main frame 10, so that when the manual handle 21 is separated, the key groove 21b of the manual handle 21 is fastened and stored in the multi-key shaft 11 .

And the tightening bolt 23 is provided to freely rotate in the center of the key groove (21b) of the manual handle (21), and screwed with the tightening nut part (23a) formed in the center of the key shaft (21a) and the multi-key shaft (11) It is provided as possible. Thus, the manual handle 21 is keyed to the key shaft (21a) or the multi-key shaft (11) by coupling the key shaft (21a) and the key groove (21b), and the tightening bolt (23) is screwed into the tightening nut (23a). When the manual handle (21) is firmly maintained in a key-coupled state, as well as separation during storage in the multi-key shaft (11) is prevented.

The automatic drive unit 30 according to the present invention includes a driven gear 34 and a driven gear 34 provided to be movable along a spline shaft 32 connected concentrically with the winch drum 12 in any one direction. It is meshed with the elastic body 35 that is pressed by the pressure, the lever 36 that controls the movement of the driven gear 34 in the other direction, and the driven gear 34 which is moved along the spline shaft 32 by the lever 36 The motor 37 is composed of a drive gear 38 that transmits the driving force.

As an example, an elastic body 35 is installed between the winch drum 12 and the driven gear 34 as shown in FIG. 6, so that a repulsive force acts between the driven gear 34 and the winch drum 12, and the driven gear 34 ) The driven gear 34 is provided to move toward the winch drum 12 along the spline shaft 32 by the linear motion of the lever 36 installed on the rear surface.

To this end, the lever 36 is provided to be linearly transported along a guide rail 39 installed on the inner side of the side plate of the main frame 10, and a handle 31 is screwed to one end of the lever 36.

The handle 31 is disposed to pass through the outer side of the side plate of the main frame 10 so that it can be operated from the outside, and after adjusting the position of the lever 36, the handle 31 is locked by rotating the handle 31. ) Is pressed against the side plate of the main frame 10 and the position of the lever 36 is fixed.

7 (a) shows a state in which a repulsive force acts between the driven gear 34 and the winch drum 12 by the elastic body 35 so that the driven gear 34 is separated from the drive gear 38. b) shows a state in which the driven gear 34 is inclined to the inclined cam 36a by the operation of the lever 36 and engaged with the driving gear 38, the driven gear of the automatic power transmission unit 30 34 and the driving gear 38 are formed of bevel gears, and the driven gear 34 is an inclined cam formed inside the lever when the ground pad 34a formed on the outer shaft supports the lever 36 to advance. It is provided to be pressed in contact with (36a) and moved inwardly along the spline shaft 32 by an inclined motion to engage the drive gear 38.

In this way, by one-touch operation of pushing or pulling the lever 36, the switch to the manual mode and the automatic operation mode is made quickly, and accordingly, even in a situation where there is no electricity supply, it is changed to the manual mode simply and quickly, so that the rescue operation is made quickly. It has an advantage, and its structure is simple, so it is small in volume and light in weight, so the mobility to the disaster point including the lifesaving is improved.

Meanwhile, the motor 37 applies a brake motor that brakes the motor shaft when power is not supplied or when the motor is stopped, so that the winch drum 12 is braked when the motor is stopped. Accordingly, in the automatic mode using the motor 37, the winch drum 12 is braked when the motor 37 is stopped without applying a separate braking system. Therefore, when the power supply is cut off while the wire is loaded, the operator and rescuer Safety can be guaranteed.

As described above, the most preferred embodiments of the present invention have been described in the detailed description of the present invention, but various modifications may be made within the scope of the technical scope of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but the scope of protection should be recognized from the techniques of the claims to be described later and equivalent technical means from these techniques.

10: main frame 11: multi key axis
12: winch drum 20: manual drive
21: manual handle 21a: key shaft
21b: keyway 22: gear assembly
22a: first manual gear 22b: second manual gear
22b': rotating shaft 22c: ratchet gear 22d: pole
23: tightening bolt 23a: tightening nut portion
24: driven gear
30: automatic drive unit
31: handle 32: spline shaft
34: driven gear 34a: ground pad
35: elastic body 36: lever 36a: inclined cam
37: motor 38: drive gear 39: guide rail
100: structural support W: winch wire

Claims (4)

A body frame 10 mounted on the structural support 100 and rotatably supporting the winch drum 12;
A manual drive unit 20 provided to transmit the rotational force of the manual handle 21 through the gear assembly 22 connected to the winch drum 12; And
A driven gear 34 that is movable along a spline shaft 32 connected concentrically with the winch drum 12, an elastic body 35 for pressing the driven gear 34 in one direction, and a driven gear A drive gear that engages with a lever 36 that controls the movement of 34 in the other direction and a driven gear 34 that is moved along the spline shaft 32 by the lever 36 to transmit the driving force of the motor 37 ( An automatic drive unit 30 consisting of 38); Structure lifting device, characterized in that consisting of a.
The method of claim 1,
The gear assembly 22 of the manual drive unit 20 is engaged with the first manual gear 22a and the first manual gear 22a provided concentrically with the winch drum 12 to rotate the manual handle 21 It is meshed with the second manual gear 22b that transmits power, the ratchet gear 22c provided on the rotation shaft of the second manual gear 22b, and the ratchet gear 22c to allow forward rotation of the second manual gear 22b. It consists of a pole (22d),
The ratchet gear 22c is inserted into the rotation shaft 22b' of the second manual gear 22b and fixed by pressure by a friction pad 24, and the second manual gear 22b is operated by the automatic drive unit 30. Structural lifter, characterized in that provided to allow reverse rotation when a rotational force of more than a set torque is applied to the side.
The method of claim 2,
The manual handle 21 is separated from the rotation shaft 22b' of the second manual gear 22b by forming a key groove 21b formed inside the shaft support portion of the manual handle 21 in order to engage with the key shaft 21a. Installed as possible,
When the manual handle 21 is separated by forming a multi-key shaft 11 on the rear surface of the main frame 10, the key groove 21b of the manual handle 21 is provided to be fastened and stored in the multi-key shaft 11,
A tightening bolt 23 is provided to freely rotate in the center of the key groove 21b of the manual handle 21 so that it is screwed with the tightening nut part 23a formed in the center of the key shaft 21a and the multi-key shaft 11 Rescue lifting device, characterized in that provided.
The method according to any one of claims 1 to 3,
The driven gear 34 and the driving gear 38 of the automatic power transmission unit 30 are formed of bevel gears, and the driven gear 34 is an inclined cam formed inside the lever when the lever 36 is advanced. It is provided to be pressed in contact with (36a) and moved along the spline shaft 32 by an oblique motion to engage with the drive gear 38,
The motor 37 is a structural lifter, characterized in that the motor shaft is formed of a brake motor that is braked when the motor shaft is stopped, and the winch drum 12 is provided to perform braking operation when the motor shaft is stopped.

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