KR102396845B1 - Automatic locking device for safety door of construction lift - Google Patents

Abstract

The present invention is an automatic locking device for a safety door for a construction lift, and in more detail, it is intended to provide a locking means for an opening/closing device applied to a safety door for each floor of a building corresponding to a construction lift, and the present invention is a specific means A safety door automatic locking device having a rotation angle installed to rotate according to the opening and closing of the safety door on one side of a safety door frame installed with a safety door for each floor of a building that opens and closes in response to the elevation of a construction lift, the angle of rotation according to the approach of the lift rotation control means for controlling the rotation angle of It is characterized in that it includes a stopper configured to rotate so that the rotation angle is fixedly supported or rotated so as not to interfere with the rotation angle according to the operation of the servomotor, and by this invention, installation is simple and operation reliability is high It is an invention in which a number of effects can be expected.

Description

Automatic locking device for safety door of construction lift

The present invention relates to an automatic locking device for a safety door for a construction lift, and more specifically, to a locking means for an opening/closing device applied to a safety door for each floor of a building corresponding to a construction lift.

In the case of high-rise buildings, a construction lift is installed on the outer wall to transport construction materials, including workers, to each floor during construction.

Each floor is equipped with a safety door corresponding to the construction lift, which is normally closed to prevent workers or construction materials from leaving the building.

Among the technologies for this purpose, as disclosed in Korean Patent Application Laid-Open No. 2007 No. 33666 (announced on March 27, 2007), a stopper that rotates with a hinge pin is installed at the top of the door that can access the lift at the construction site to close the door. In the locking device, a lever that descends by its own weight around a hinge pin and presses the upper end of the stopper to lock the door is provided, and on the upper side of the lever, a reflection plate of the lift is sensed with light, and when a predetermined time elapses, the lever is used as a solenoid. It is characterized in that the control box is provided to allow the door to be opened by pressing and releasing the restraint of the stopper, or the control box is provided with an optical sensor for detecting the reflector of the lift, and the solenoid is provided with a pressing part for pressing the lever, and the inside of the solenoid is A permanent magnet that holds the upper metal plate by magnetic force is built-in, so even if the power to the solenoid is cut off, the pressing part continues to press the lever and the door can be opened.

As another technology, as disclosed in Republic of Korea Patent No. 1886705 (announcement dated August 08, 2018), it is a non-contact safety door enforcement system used in a construction lift equipped with a transport port and a safety door. A locking support rotatably installed on the door and a control device operable to intercept the locking support so that the safety door can be closed, but to release the interception of the locking support so that the safety door can be opened when a carrier is detected and the control device, a second sensor for detecting the carrier, and a control unit for outputting a driving signal according to whether the second sensor detects the carrier moves up and down and reciprocates, and a lock key and the lock installed to intercept the lock support and a driver installed to enable rotational movement by releasing the intermittent locking support of the locking support by pulling the locking key by operating the plunger according to the driving signal of the control unit when the second sensor detects the carrier, and The control device further includes a second sensor for detecting an operating state of the plunger, and the control unit provides a driving signal at a predetermined period to restart the plunger when the second sensor does not detect an operating state of the plunger because the plunger does not operate normally. A technique characterized by outputting is registered.

As another technology, as disclosed in Republic of Korea Patent Registration No. 1481731 (announcement dated January 27, 2015), for communication between the transport port of the construction lift and the inside of the building, it is a method of opening and closing safety doors installed on each floor of a building. That is, in the state in which the carrier is braked, the carrier protrudes in the direction of the safety door, and in the state in which the brake of the carrier is released, the carrier automatically performs protrusion and return operations depending on whether the carrier is braked to return to the original position. operating plate installed on the side; and is installed to be elastically supported toward the operating plate to allow the manual opening operation of the safety door by being pushed backward by the operating plate in a state in which the transport member is braked, and manual opening of the safety door in a state in which the brake of the transport member is released It may include a floating pin installed on the side of the safety door of each floor of the building to return to the original position through the elastic restoring force to block the operation.

However, in common with the above technologies, when the door is left open for a long time in common, electricity must be continuously supplied to the solenoid, causing severe heat and overload, which leads to a sharp decrease in the life of the solenoid device, leading to a sharp decrease in operational reliability and reduced stability. there was.

Therefore, it is necessary to develop an automatic locking device for a safety door that can automatically close and lock while having high operational reliability.

KR 10-2007-0033666 A (2007.03.27.) KR 10-1886705 B1 (2018.08.08.) KR 10-1481731 Y1 (2015.01.27.)

In the present invention, a new technology has been devised to solve the problems of the prior art, and the present invention is a lock that locks the safety door installed on each floor of the building to correspond to the construction lift so that the opening and closing operation is limited according to the position of the lift It is an object of the invention to provide a locking means that allows the device to have higher reliability and convenient operability.

Although not separately described, other objects within the scope that can be inferred in consideration of the specific contents and claims for carrying out the following invention are also included in the overall task of the present invention.

As a specific means for solving the problems of the present invention, in the present invention, in configuring the automatic locking device for the safety door of the construction lift, one side of the safety door frame installed with the safety door for each floor of the building that opens and closes in response to the elevation of the construction lift In the automatic locking device of a safety door having a rotation angle installed to rotate according to opening and closing of the safety door in A base, a leg configured to be interposed between the safety door frame and the base, a servo motor installed on the base, and a shaft installed to rotate by the servo motor, the rotation angle is fixedly supported, or the rotation angle according to the operation of the servo motor A stopper configured to rotate without interference is included, and the leg has a long hole so that the height of the base is adjusted in the long hole of the leg coupled to the safety door frame. It is characterized in that it includes a variable type leg that is coupled to adjust the height and supports the lower part of the base.

In order to prevent damage to the stopper or the servomotor due to the rotation angle receiving external force, a safety support piece extending in the base in a direction perpendicular to the rotation axis of the stopper to support the upper end of the stopper may be further included.

The stopper directly supports the rotation angle and includes a hooking piece bent in a direction perpendicular to the rotation axis of the rotation angle, and a connecting piece that is axially installed on the rotary shaft of the servomotor and is bent to be interposed between the locking piece and the servomotor. can be done with

In addition, by bending the end of the safety support piece, it may be characterized in that it further includes a departure prevention part configured to limit the rotation angle of the stopper.

According to the specific means for solving the above-mentioned problems, the mechanical means and the electromagnetic means are properly combined without relying on a complicated structure to automatically operate while having a high operational reliability structure.

In addition, it is easy to install, and in particular, it can be easily applied even when a safety door of the prior art of the existing T-Bar type is installed.

In case of emergency, it can be operated manually as needed, so it is an invention that has many expected effects, such as being able to protect the safety of workers in various ways.

1 is an enlarged three-dimensional view of the main part to which an example of the present invention is applied;
2 is an isolated stereoscopic view to which an example of the present invention is applied;
3a to 3b are plan cross-sectional views showing the operation of the rotation control means of the present invention;
4a to 4b are side cross-sectional views showing the operation of the rotation control means of the present invention;
5 is a three-dimensional view showing the operation of the present invention;
6 is an exemplary view showing another embodiment of the present invention;
7 is a three-dimensional view showing another embodiment of the leg of the present invention;

The present invention is to provide an automatic locking device for a safety door of a construction lift, which will be described in more detail with the drawings below, and the accompanying drawings are for easily explaining the content and scope of the technical idea of the present invention It is merely an example, and is not limited thereto, and the terms used are also only for describing the embodiment in detail, and should not be construed as being limited to the term.

As shown in the drawing, the automatic locking device for the safety door of the construction lift of the present invention is the safety door frame 103 in which the safety door 102 for each floor of the building that opens and closes in response to the elevation of the construction lift 101 is installed. In the automatic locking device 100 for the safety door 102 having a rotation angle 104 installed to rotate according to the opening and closing of the safety door 102 from one side, the rotation angle 104 is rotated according to the approach of the lift 101 A rotation control means (1) for controlling the angle is included, and the rotation control means (1) is interposed between the base (2) installed on the safety door frame (103), and the safety door frame (103) and the base (2). The leg 5 constituted, the servomotor 3 installed on the base 2, and the servomotor 3 are installed so as to be rotated, and the rotation angle 104 is fixedly supported or the servomotor 3 A stopper 4 configured to rotate so as not to interfere with the rotation angle 104 according to the operation of The fixed leg 51 or leg 5 coupled to the side of the base 2 so that the height of the base 2 is adjusted in 511 is a hole 521 is formed from the base 2 to the height of the leg 5 Is coupled to be adjusted, it characterized in that the variable leg 52 for supporting the base (2) lower portion is included.

To prevent damage to the stopper 4 or the servo motor 3 by the rotation angle 104 receiving external force, the base 2 in a direction perpendicular to the rotation axis of the stopper 4 to support the upper end of the stopper 4 ) may be characterized in that the extended safety support piece (6) is further included.

The stopper 4 directly supports the rotation angle 104, and a locking piece 41 bent in a direction orthogonal to the rotation axis of the rotation angle 104, and the rotation shaft of the servomotor 3, and the locking piece (41) and the servomotor (3) to be interposed between the bent connecting piece (42) may be characterized in that it is included.

In addition, by bending the end of the safety support piece (6), it may be characterized in that it further includes a departure prevention part (61) configured to limit the rotation angle of the stopper (4).

The configuration of the safety door 102 automatic locking device 100 of the construction lift 101 is as follows in detail with the action, and in the description, the direction is the x-axis based on the dimensional coordinates shown in the drawing Left and right, the y-axis is forward and backward, and the z-axis is up and down, and the directions shown in FIGS. a to b are arbitrarily defined as the front.

In order to easily supply workers and construction materials to each floor of a building under construction, a construction lift 101 that ascends and descends is erected on the outside of the building.

The side where the lift 101 is not raised is blocked for safety, and the safety door 102 toward the outer wall of the building corresponding to the position of the lift 101 on each floor so that only the floor on which the lift 101 is raised can pass. ) will be installed.

The safety door 102 is installed by the safety door frame 103 supported on the floor and the ceiling, respectively, and is hinged from both sides of the safety door frame 103 to rotate and open and close.

At this time, the safety door 102 is opened only when the lift 101 is on the same floor as the safety door 102 , and must be locked so as not to be opened when the lift 101 goes up and down to another floor of the building.

If the safety door 102 is opened even if there is no lift 101 or there is no safety door 102, an accident may occur in which workers or construction materials are separated from the building and fall.

Therefore, for safe construction work, the safety door 102 can be opened only when the lift 101 is on the same floor in response to the location of the lift 101, and when the lift 101 is on a different floor, the safety door 102 does not respond. A device for maintaining a locked state is required, and the present invention relates to a safety door 102 automatic locking device 100 .

The present invention is configured to be applicable to the conventionally installed safety door 102 locking device.

In the case of the existing safety door 102 locking device, it is in contact with the 'L'-shaped rotation angle 104 at the rear upper end of the safety door 102, so that when the safety door 102 is hinged to the rear and opened, the safety door ( The upper end of 102 pushes the rotation angle 104 forward, and the rotation angle 104 rotates at an angle of about 90 degrees based on the rotation angle hinge 104-3, which is the center of rotation, and again the safety door 102 ) is closed, since there is no configuration for pushing the rotation angle 104 backward, the rotation angle 104 returns to its original position.

At this time, when the height of the lift 101 does not correspond to the safety door 102, a means for preventing the rotation angle 104 from being rotated is provided, so that the safety door 102 is pushed from the outside of the building or pulled from the inside of the building Also, the upper end of the safety door 102 does not open in contact with the rotation angle 104 .

Means for limiting the rotation angle of the rotation angle 104 have been developed in various ways, but in the present invention, the stopper 4 rotating using the servo motor 3 installed in the safety door frame 103 is installed at the rotation angle 104 . It is provided with a rotation control means (1) for supporting the installed rotation angle 104 so as not to be in contact with rotation.

Looking at the rotation control means (1) in more detail as follows.

As shown in FIGS. 1 to 2 , the base 2 bent in a 'C' shape is installed on the safety door frame 103 .

The base 2 may be directly installed on the safety door frame 103, but in order to properly adjust the height of the stopper 4 corresponding to the rotation angle 104, a leg ( 5) is preferably installed.

The leg 5 may be provided as a fixed leg 51 as shown in FIG. 2 .

The lower part of the C-shape of the fixed leg 51 is seated on the safety door frame 103 , and the bolt nut is fastened to the safety door frame 103 through through-holes formed before and after the lower part.

A long hole 511 is formed in the upper and lower portions of the fixed leg 51 , and the base 2 is bolted to one upper side of the fixed leg 51 .

Therefore, the height of the base 2 is easily adjusted by adjusting the position where it is coupled in the long hole 511 of the fixed leg 51 .

Another embodiment of the leg 5 may include a deformable leg 52 as shown in FIG. 7 .

A plurality of variable-type legs 52 bent in an approximately 'L' shape on both sides of the front and rear sides of the safety door frame 103 are placed to face each other, and a plurality of perforations 521 penetrated to correspond to each other in the lower portion of the variable-type leg 52 . The height at which the variable leg 52 will stand in the safety door frame 103 is determined in advance by selectively combining the bolts and placed therein.

The upper part of the variable leg 52 and the lower part of the base 2 that are press-coupled from both sides of the safety door frame 103 are formed to be bolted to each other, and the base 2 is installed.

The servomotor 3 is installed inside the base 2 , and the direction of the rotational axis of the thermomotor is positioned so as to be viewed in the vertical direction orthogonal to the rotation angle 104 .

The servomotor 3 is interlocked with the controller 23 and the sensor 22 installed to be included in the safety door 102 automatic locking device 100, and when the approach of the lift 101 to the sensor 22 is detected The controller 23 applies power so that the servomotor 3 rotates so that the servomotor 3 rotates.

A stopper 4 protruding forward is coupled to the rotation shaft of the servomotor 3 .

The stopper 4 includes a locking piece 41 that directly abuts against the rotation angle 104 to prevent rotation of the rotation angle 104 as shown in FIG. It may be installed on the rotation shaft of (3), or the connecting piece 42 bent in a 'L' shape between the engaging piece 41 and the servomotor 3 in order to facilitate production and maintenance such as assembly and maintenance. Interposed therebetween, the engaging piece 41 is bolted to one side of the connecting piece 42 , and the other side of the connecting piece 42 may be configured to be axially installed on the rotation shaft of the servomotor 3 .

In the drawings, the connecting piece 42 is bent and shown to be coupled to only one side of the servomotor 3, but the servomotor ( 3) may be provided so as to rotate by connecting up and down the axis of rotation at the same time.

Therefore, as shown in FIGS. 3A to 3B , when the controller 23 sends an operation signal by the sensor 22 detecting the approach of the lift 101, the servomotor 3 rotates and the servomotor 3 ), the stopper (4) installed on the shaft is also rotated.

As shown in Fig. 3a, when the lift 101 is not detected by the sensor 22, the stopper 4 is rotated clockwise in a plane so that it is located on the upper portion of the rotation angle 104, and the sensor ( 22), when the lift 101 is sensed, the servomotor 3 rotates about 90 degrees to the contrary, and the stopper 4 is in close contact with the base 2 side.

A view of this from the side is as shown in FIG. 4A , and the upper surface of the upper piece 104-1 of the rotation angle 104 is configured to face the lower end of the stopper 4 up and down.

At this time, when trying to open the safety door 102 , the lift 101 is not detected by the sensor 22 , so the safety door 102 should not be opened, so the stopper 4 moves the upper part 104 of the rotation angle 104 . By supporting -1), the lower part 104-2 of the rotation angle 104 is locked to prevent the opening of the safety door 102.

At this time, if force is unintentionally applied to the revolving door, a load is similarly applied to the lower part 104-2 of the rotary angle 104 as well, and the rotary angle 104 is axially installed on the rotary angle hinge 104-3. Therefore, rotational force is generated by the rotation angle 104.

Even if the rotation angle 104 is locked by the stopper 4, when the rotation angle 104 has a rotational force by an external force, the upper piece 104-1 of the rotation angle 104 is the stopper 4 ) is strongly pushed up, and thus the stopper 4 may be damaged or there may be a risk that the servomotor 3 installed at the upper end of the stopper 4 may be damaged.

Therefore, in order to prevent the above problem in advance, even if the stopper 4 receives a force upward by the rotation angle 104, it is solved by further providing a safety support piece 6, which is a means for supporting the stopper 4 from the upper part. can

The safety support piece 6 may be configured to protrude from the upper portion of the base 2 or be fixed to the base 2 .

Therefore, when the lift 101 is not detected by the sensor 22, in the locked state, the safety door 102 and the lower piece 104-2 are close to each other and face each other, and the upper piece 104-1 and the stopper ( 4) has a structure in which the lower end faces each other closely, and the upper end of the stopper 4 and the safety support piece 6 face each other closely.

Afterwards, when the lift 101 approaches the sensor 22 according to the operation of the lift 101, the servo motor 3 rotates counterclockwise about 90 degrees as shown in FIG. 3B by a signal from the controller 23 It rotates to a degree so that the planar stopper 4 is moved away from the rotation angle 104 so as not to interfere with each other, and at the same time acts so that the stopper 4 is accommodated inside the base 2 .

As the servomotor 3 rotates so that the stopper 4 does not interfere with the rotation angle 104, when the safety door 102 is opened as shown in FIG. 4b, the rotation angle abutting the upper part of the safety door 102 The lower piece 104-2 of (104) receives a force to generate a rotational force, and at this time, since there is no longer a configuration limiting the upper piece 104-1 of the rotation angle 104, the rotation angle 104 is easy to rotate

Therefore, while the safety door 102 is open, the upper surface of the safety door 102 continues to support the lower part 104-2 of the rotation angle 104 is maintained, and when the safety door 102 is closed again As the top surface of the safety door 102 no longer supports the lower part 104-2 of the pivot angle 104, the pivot angle 104 is formed between the lower part 104-2 and the upper part 104-1. ) is returned to its original angle by its own weight because the center of gravity is tilted to one side, and the lower piece 104-2 is maintained in a vertical state, and the upper piece 104-1 is maintained in a horizontal state.

After the safety door 102 is closed, if the lift 101 is moved up and down and not detected by the sensor 22, the controller 23 rotates the stopper 4 counterclockwise approximately as shown in FIG. 3A according to a predetermined algorithm. It rotates 90 degrees and thus the stopper 4 is placed on the upper surface of the upper piece 104-1 of the rotation angle 104 again to limit the rotation of the rotation angle 104.

Even if the servomotor 3 does not rotate due to insufficient power supply or a malfunction, the user can manually insert the stopper 4 into the base 2 because the rotation of the servomotor 3 is not fixed. ), you can open it manually by rotating it about 90 degrees.

In addition, in the present invention, the servo motor 3 is exemplified so as to smoothly control the rotation angle of the stopper 4, but the right to the servo motor 3 is not limited, and various other means for transmitting rotational force can be used. there is.

In the case of using a rotational force other than the servomotor 3 or manually rotating it as in the above example, the stopper 4 must be positioned exactly perpendicular to the upper piece 104-1 of the rotation angle 104. As a means for doing so, as shown in FIG. 7 , the end portion of the safety support piece 6 is partially cut and then bent to further configure the separation prevention part 61 in which the stopper 4 is supported.

Therefore, when the stopper 4 rotates excessively, it is possible to solve in advance the problem of not being able to prevent the rotation of the rotation angle 104 by being supported by the separation preventing unit 61 and rotating to an unnecessary angle.

In spite of the uncomplicated operation as described above, the rotation of the rotation angle 104 can be easily limited or the restriction can be released, so that installation is easy, maintenance costs are reduced, and high operational reliability is provided.

As the reliability of the operation of the safety door 102 increases, the safety of the operator can be ensured, and the effect of enabling a safer and faster operation at the same time can be expected.

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

100: safety door automatic lock
101: lift 102: safety door 103: safety door frame
104: rotation angle 104-1: upper part 104-2: lower part 104-3: rotation angle hinge
1: Rotation control means
2: Base 21: Protective Cover 22: Sensor 23: Controller
3: Servo motor
4: stopper
41: snag
42: Connection
5: Leg 51: Fixed leg 511: Long hole 52: Variable leg 521: Perforated
6: Safety support piece 61: Detachment prevention part

Claims (3)

Having a rotation angle 104 installed to rotate according to the opening and closing of the safety door 102 on one side of the safety door frame 103 where the safety door 102 for each floor of the building that opens and closes in response to the elevation of the construction lift 101 is installed In the automatic locking device (100) of the safety door (102),
Rotation control means (1) for controlling the rotation angle of the rotation angle 104 according to the approach of the lift 101; includes;
Rotation control means (1),
a base (2) installed on the safety door frame (103);
Servo motor (3) installed on the base (2);
A stopper 4 configured to rotate so as to be rotated by the servo motor 3, the rotation angle 104 is fixedly supported or rotated so as not to interfere with the rotation angle 104 according to the operation of the servo motor 3;
a safety support piece 6 extending from the top of the base 2 to support the top of the stopper 4 to prevent the stopper 4 or the servomotor 3 from being damaged;
Automatic locking device for safety door of the construction lift, characterized in that it contains.
The method of claim 1 ;
a separation prevention unit 61 configured to bend the end of the safety support piece 6 to support the stopper 4 to limit the rotation angle of the stopper 4;
Safety door automatic locking device of the lift for construction, characterized in that it further comprises.
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