KR20080059979A - Load force measure apparatus - Google Patents

Abstract

An apparatus for measuring a load of an automatic door is provided to measure a load of the automatic door according to height from the bottom of a rail or distance from the center of the rail. An apparatus for measuring a load of an automatic door includes a body(110), a supporting plate(130), a load detector(120), an impact absorbing unit, and a display(140). The body is fixed on a rail. The supporting plate is mounted on the body and moves up and down. The load detector is mounted on an upper part of the supporting plate and senses a load when the automatic door closes. The impact absorbing unit consists of an air cylinder(123) and an elastic unit(124), and absorbs an impact generated by a collision between the load detector and the automatic door for sensing the load only. The display indicates the measured load.

Description

Load force measure apparatus for automatic doors

1 is a schematic configuration diagram for explaining a method for measuring the action force of the automatic door according to the prior art.

Figure 2 is a schematic configuration diagram for explaining the action force measuring device of the automatic door according to the present invention.

Figure 3 is a perspective view for explaining the frame of the automatic force acting force measuring apparatus according to the present invention.

Figure 4 is a perspective view for explaining the support plate of the automatic force acting force measuring apparatus according to the present invention.

5 is a perspective view for explaining a display unit of the automatic force acting force measuring apparatus according to the present invention.

<Description of the symbols for the main parts of the drawings>

110: main body 120: force detection unit

121: contact portion 122: pressure sensor

123: air cylinder 124: elastic portion

130: support plate 140: display unit

150: vise

The present invention relates to a functional force measuring device of the automatic door that can measure the force when the various automatic doors are closed, in particular, the measurement error is small, the reliability of the measurement data is high, as well as the height of the rail from the bottom surface or rail center The present invention relates to an automatic door force measuring device capable of measuring the distance from the distance and improving the measurement accuracy.

In general, an automatic door installed in an automatic door or an elevator on a screen installed in a platform of a subway is a safety device that automatically opens an automatic door by detecting when a closing operation is prevented by a part of the body or belongings when the automatic door is closed for the passenger's safety. Is installed.

For example, as illustrated in FIG. 1, a screen 20 is installed at the end of a platform such as a subway, and an automatic door 21 is installed at the entrance side of the platform to allow passengers to get on and off the railroad vehicle 10. At this time, the part of the body or various belongings, etc. in the automatic door 21 is jammed in the closing operation, the force of the automatic door 21 closing operation to the motor side to operate the automatic door 21 (hereinafter, When the action force) is transmitted, a safety device is installed so that the automatic door 21 is automatically opened by detecting the action force at the motor side.

Therefore, as well as confirming that the safety device is operating normally above the set action force, as well as periodically measuring the action force of the automatic door 21 so that the passenger does not injure due to excessive action force, conventionally for this purpose The tester grasped the body 31 of the push-pull gage 30 and hooked the hook 32 to the automatic door 21 of the screen 20 to measure the action force generated during the closing operation.

However, when the tester manually measures using the push-pull gauge 30 as described above, the measurement value varies depending on the tester, and the tester's behavior during repeated measurement even if the same tester makes the measurement. Or there is a problem that the measurement value is changed by the body structure, etc., the accuracy and reliability thereof is lowered.

In addition, the measured value may vary for each position of the automatic door 21, that is, a predetermined distance from the bottom surface of the boarding point on which the automatic door 21 is installed, as well as the center rotor screen 20 toward the center of the automatic door 21. There was a problem that the measurement value is also different for each distance-distance position is difficult to accurately measure.

In addition, the degree of impact energy absorption at the initial stage of the closing operation of the automatic door 21 is different depending on the tester, and there is also no means for absorbing the shock energy sufficiently, so that accurate and reliable measurement is impossible. there was.

Therefore, the present invention solves the problems as described above, so that it is possible to measure the force when the various automatic doors are closed, but the measurement error is small, the reliability of the measurement data is high, as well as by the height from the floor surface on which the rail is installed Or, to measure the separation distance from the rail center and to provide an automatic door force measuring device that can improve the measurement accuracy.

To this end, the automatic force acting force measuring device according to the present invention is fixed to the rail of the automatic door, and the contact portion and the contact portion which is installed on the main body and is installed in the closing direction of the automatic door to contact the automatic door by the automatic door It characterized in that it comprises an action force detection unit having a pressure sensor for detecting the pushing force.

At this time, the main body is a plurality of vertical frames facing upward from the bottom surface on which the rail is installed, a plurality of horizontal frames installed in a direction parallel to the rail and the upper portion of the vertical frames facing the rail between It is preferable to include a connecting frame for connecting to each other.

In addition, the force detection unit preferably further includes a shock absorber for absorbing the impact energy generated by the collision with the automatic door.

In addition, the shock absorbing portion is preferably made of an air cylinder, or made of an elastic portion, or preferably made of an air cylinder and an elastic portion.

In addition, the air cylinder is preferably connected to the moving shaft of the contact portion to reduce the amount of impact applied to the contact portion by the automatic door.

In addition, the elastic portion is preferably made to elastically support the action force sensing unit to reduce the amount of impact applied to the contact portion by the automatic door.

In addition, it is preferable that the support plate for supporting the action force detection unit is provided to be able to move up and down on the main body so that the height of the action force detection unit can be adjusted.

In addition, a plurality of locking grooves are formed on both sides of the support plate, and fixing screws are fastened to both sides, and coupling holes are formed on the upper surface thereof so that a pair of fixing protrusions and the support rods of the elastic portion penetrate through the coupling plate. It is preferable that the locking projection is formed.

The display apparatus may further include a display unit configured to display the closing force of the automatic door detected by the force sensing unit, wherein the display unit receives a signal sensed by the pressure sensor and outputs it as an audio output unit or an image output as a voice. It is preferred to include any one or more of the parts.

In addition, the pressure sensor is preferably made of a load cell.

Hereinafter, with reference to the accompanying drawings an automatic door action force measuring apparatus according to a preferred embodiment of the present invention will be described in detail. However, hereinafter, the automatic door installed in the landing screen among the various automatic doors installed in the landing screen and the elevator will be described as an example.

Figure 2 is a schematic configuration for explaining the action force measuring apparatus of the automatic door according to the present invention, Figure 3 is a perspective view for explaining the frame of the force force measuring apparatus of the automatic door according to the present invention, Figure 4 is an automatic according to the present invention It is a perspective view for demonstrating the support plate of the door force measurement apparatus, and FIG. 5 is a perspective view for demonstrating the display part of the automatic force action force measurement apparatus which concerns on this invention.

First, as shown in Figure 2, the automatic force acting force measuring device according to the present invention is the main body 110 is fixed to the rail (R) installed in the platform so that the automatic door of the screen can be opened and closed, and the main body 110 The support plate 130 is provided so as to be able to move up and down, an operating force detection unit 120 is installed on the upper support plate 130 to measure the action force when the automatic door is closed, and the action force detection unit 120 is an automatic door The impact force measured by the air cylinder 123 and the elastic portion 124, and the force detection unit 120 to absorb the impact energy generated by collision with the air so that only the action force can be accurately measured. The display unit 140 for confirming this is a main configuration.

In more detail, as shown in FIG. 3, the main body 110 includes a plurality of vertical frames 111 facing upwards from the bottom surface of the landing where the rails R are installed, and the rails R and the rails R. As shown in FIG. It comprises a connecting frame 113 for connecting the plurality of horizontal frame 112 and the vertical frame 111 facing each other with the rail (R) interposed in a parallel direction.

However, the lower part of the main body 110 does not include the connection frame 113 as described above, so that the main body 110 may be placed on the floor with the rails R therebetween.

In addition, in order to measure the action force when the automatic door is closed, since the main body 110 installed on the floor should be fixed to the rail (R) to prevent the automatic door from being pushed in the closing direction, an example of a fixing means for this As a lower portion of the main body 110, a vise 150 is provided.

That is, one of the horizontal frames 112 facing each other with the rails R interposed therebetween is provided with a moving block 152, and the other horizontal frame 112 corresponds to the moving blocks 152. The fixed block 151 is provided at the position, and the movable block 152 is rotatably coupled with the adjustment member 153 installed through the screw hole formed in the one horizontal frame 112, When the adjusting member 153 is tightened, as the moving block 152 moves toward the fixed block 151, the moving block 152 and the fixed block 151 compress the both sides of the rail R to fix the main body 110 to the rail ( It can be fixed to R).

The support plate 130 is to adjust the height of the action force measurement by the action force sensing unit 120, as shown in Figure 4, a plurality of locking grooves in the support plate 130 made of a plate shape 134 is formed, the fixing screw 131 is screwed in the direction toward the locking groove 134 on both sides of the support plate 130, the locking groove 134 is engaged with the vertical frame 111, respectively. The support plate 130 can be raised and lowered in a state, as well as when the force sensing unit 120 is located at the position where the force is to be measured, tightening the fixing screw 131 to support the force sensing unit 120. The support plate 130 can be fixed.

In addition, the support plate 130 has a pair of fixing protrusions 133 protruding a predetermined height from the upper surface of the air cylinder 123 to prevent the air cylinder 123 from shaking in a direction perpendicular to the direction in which the automatic door is closed, and an elastic portion. A coupling hole is formed to allow the support rod 124a of the 124 to be coupled therethrough, as well as a support protrusion for supporting one side of the elastic coil 124b installed through the support rod 124a. 132 is integrally formed.

The action force sensing unit 120 mounted on the upper side of the support plate 130 is for measuring the closing force of the automatic door, which receives power from an electric motor (not shown) during the closing operation of the automatic door, and the closing direction of the automatic door. It is provided in the contact portion 121 is in contact with the automatic door and comprises a pressure sensor 122 for detecting the force pushed by the automatic door 121.

However, as the pressure sensor 122, using a load cell capable of generating an electrical signal proportional to the deformation of the elastic body, it is possible to accurately measure the force, as well as the measurement of the force measured by the display unit 140. It may be desirable to output the magnitude signal so that the tester can check the force measurement through the display unit 140.

The shock absorbing part is for absorbing the impact energy generated instantaneously during the initial contact of the contact portion 121 of the action force detecting unit 120 with the automatic door, so that the accurate action force measurement can be made. The air cylinder 123 and the elastic part ( 124).

At this time, the air cylinder 123 is composed of a cylinder body 123a and a piston 123b and one end of the piston 123b is connected to the contact portion 121 so that an instantaneous impact due to the automatic door contacting the contact portion 121. It is configured to absorb energy by the air pressure between the cylinder body 123a and the piston 123b.

And, the elastic portion 124 is to be able to absorb the impact energy applied to the action force sensing unit 120 together with the air cylinder 123, one end is a locking projection (formed on the support plate 130) 132 is coupled to each other and the other end of the support rod 124a is integrally coupled to the support rod 124c, and the support rod 124a is coupled to the center of both ends of the support plate 124c and the engaging projection 132 It comprises an elastic coil (124b) each supported by). Accordingly, when the impact is applied to the contact portion 121 by the automatic door, the impact force sensing unit 120 is supported by the support plate 124c receiving the elastic force to absorb the impact energy.

The display unit 140 is for allowing the tester to check the magnitude of the action force measured by the force detection unit 120. As shown in FIG. 5, the display unit 140 is input from the communication line 143 connected to the action force detection unit 120. Control buttons for various controls including reset of display unit and voice output unit (not shown), and display unit 140 such as LED display unit 141 for displaying numbers or letters so that the tester can check the magnitude of the applied force. 142 and the like.

Hereinafter, the operation of the automatic force acting force measuring device according to an embodiment of the present invention.

First, the main body 110 is installed on a rail R at a position where a force of the automatic door is to be measured, that is, a predetermined distance away from the center of the automatic door toward the screen, and faces each other with the rail R therebetween. The moving block 152 coupled to the end of the adjusting member 153 is fastened to the other horizontal frame 112 by tightening the adjusting member 153 screwed to the horizontal frame 112 on one side of the horizontal frame 112. As the moving block 151 moves to the fixed block 151 side, the moving block 152 and the fixed block 151 are compressed to both sides of the rail R to fix the main body 110 to the rail R firmly.

When the main body 110 is fixed at the position to measure the action force of the automatic door, the support plate 130, the engaging groove 134 is engaged with the vertical frame 111, respectively, by raising or lowering to adjust the height and then fixing screw By tightening 131, the force detection unit 120 can be fixed to the height to measure the action force of the automatic door.

As described above, when the main body 110 and the force detection unit 120 is fixed to the distance and height to be measured by the tester, the tester controls the automatic door to be closed.

Therefore, the automatic door which receives power from the electric motor under the control of the tester starts to close, and the contact portion 121 is spaced apart from the predetermined distance by the automatic door, and is mounted on the main body 110 fixed to the rail R. When an action force is continuously applied to the contact portion 121, the pressure sensor 122 mounted between the cylinder body 123a of the air cylinder 123 and the support plate 124c coupled to one side of the support rod 124a is applied to the action force. Can be measured.

At this time, the impact energy applied when the automatic door and the contact portion 121 is contacted, one end of the piston 123b is connected to the contact portion 121 and is absorbed by the air pressure between the cylinder body 123a and the piston 123b. At the same time, it is also absorbed by the support plate 124c coupled to one side of the support rod 124a receiving the elastic force by the elastic coil 124b, it is possible to measure the action force of the automatic door excluding the impact force.

Then, as described above, the action force measurement value measured by the action force sensing unit 120 is transmitted to the display unit 140 through the communication line 143, and the display unit 140 can display such a force force measurement value to the tester. .

It has been described above the automatic force acting force measuring device according to the present invention. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and equivalent concepts thereof should be construed as being included in the scope of the present invention.

As described above, according to the automatic force acting force measuring device according to the present invention, it is possible to measure the force when the automatic door is closed, the measurement error is small, it is possible to improve the accuracy and reliability of the measurement data.

In addition, measurements can be made by height from the floor where the rails are installed or by separation distances from the center of the rails and can also improve measurement accuracy.

Claims (10)

An action force sensing unit having a main body fixed to a rail of an automatic door, a main body mounted on the main body and disposed in a closing direction of the automatic door, and having a contact part in contact with the automatic door and a pressure sensor for detecting a force pushed by the automatic door. Automatic force operation force measuring device comprising a. The method of claim 1, The main body connects a plurality of vertical frames facing upward from a bottom surface on which the rails are installed, a plurality of horizontal frames installed in a direction parallel to the rails, and upper portions of vertical frames facing each other with the rails interposed therebetween. Automatic force acting force measuring device, characterized in that comprises a connection frame for. The method of claim 1, And a force absorbing unit for absorbing impact energy generated by the force detecting unit colliding with the automatic door. The method of claim 3, wherein The impact absorbing unit is made of an air cylinder, or made of an elastic portion, or the action force measuring device of the automatic door, characterized in that consisting of the air cylinder and the elastic portion. The method of claim 4, wherein And the air cylinder is connected to a moving shaft of the contact portion so as to reduce the amount of impact applied to the contact portion by the automatic door. The method of claim 4, wherein And the elastic unit is configured to elastically support the action force sensing unit so as to reduce the amount of impact applied to the contact unit by the automatic door. The method of claim 1, And an actuating force measuring device of an automatic door, characterized in that a support plate for supporting the acting force sensing unit is provided to be able to move up and down on the main body so as to adjust the height of the acting force sensing unit. The method of claim 7, wherein A plurality of locking grooves are formed at both sides of the support plate, and fixing screws are fastened to both sides thereof, and a locking protrusion having a coupling hole formed at the upper surface thereof so that a pair of fixing protrusions and the support rods of the elastic part can be coupled therethrough. Automatic force measuring device for the door, characterized in that formed. The method of claim 1, The display unit may further include a display unit for displaying the closing force of the automatic door detected by the force sensing unit, wherein the display unit receives a signal sensed by the pressure sensor and outputs a voice or outputs an image. An automatic door action force measuring apparatus comprising any one or more. The method according to any one of claims 1 to 9, The pressure sensor is a force measuring device of the automatic door, characterized in that consisting of a load cell.

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