JP7174365B2 - Telescopic breaker - Google Patents

Description

The present invention is for temporarily and automatically blocking a passage such as a road, and uses a bag-shaped soft circuit breaker extending horizontally from the side of the road in the direction of blocking the road. The present invention relates to a telescopic circuit breaker in which the circuit breaker automatically extends when blocking a road, and a door is attached to a box housing the circuit breaker, and the door is attached to the circuit breaker. It is locked by a locking device when not in use.

2. Description of the Related Art Conventionally, as a blocking device, one installed at a railroad crossing of a train and one installed at a toll booth of a toll road are well known.

Also known are retractable alerting devices that are not blocking devices.

If the road is damaged due to natural disasters such as landslides, and the road below the grade crossing (hereinafter referred to as the "underpass") is flooded due to torrential rain, etc., it may become impassable or A dangerous situation arises, and it becomes necessary to block the passage of automobiles and the like at the location of the damaged road or in front of the underpass.

When it becomes necessary to block the passage of automobiles or the like at a location where the road is damaged or in front of an underpass, workers are dispatched to the site to manually perform the blocking work.

Patent No. 4482831

Patent No. 6464446

As described above, the conventional blocking device could not be installed at the required place when needed, but as a blocking device that can be opened and closed temporarily or periodically, the telescopic blocking device described in Patent Document 1 is provided. is proposed.

However, in this device, the box in which the circuit breaker is housed does not have a door. There was a risk that the vessel would block part of the passage.

In the retractable blocking device described in Patent Document 2, a pair of openable and closable doors connected to a small motor are attached to the opening of the box, and the doors can be opened and closed automatically.

However, the door is not locked with respect to the box, and the door is opened by wind pressure from the outside. There was a risk that the vessel would block part of the passage.

In view of the problems of the conventional device, the present invention has a door attached to a box housing a circuit breaker, and the door is locked by a locking device when the circuit breaker is not in use. This is intended to prevent the circuit breaker from jumping out.

(1) The present invention is a blocking device for blocking a passage, comprising a box supported by a base and provided with an opening that opens horizontally in one side wall, and the other inner wall side of the box. a blower for blowing air, a stretchable bag-shaped circuit breaker mounted inside the box so as to surround the exhaust port of the blower, and a breaker provided in the opening to open and close the opening and a locking device provided in association with the door for fixing and locking the door in a closed state,
When the blower is operated to supply air into the circuit breaker, the locking device is unlocked, and the air pressure inside the circuit breaker rises due to the air pressure from the blower, which causes the door to open. When opened and subsequently the circuit breaker extends substantially horizontally from the opening to block the passageway while maintaining tension, the air pressure inside the circuit breaker is stopped by deactivating the blower. A retractable shut-off device, characterized in that it is constructed such that the tension is reduced to relieve the tension and release the blockage.

In the present invention, the blower is operated to supply air into the circuit breaker, the locking device is unlocked, and the wind pressure from the blower increases the air pressure inside the circuit breaker. Since the door is opened by , the door is unlocked before or at the same time as the circuit breaker expands, and the circuit breaker housed in the box pushes the door open by the internal air pressure, so the door moves smoothly in the horizontal direction. It is possible to extend to
On the other hand, when the circuit breaker is housed in the box, the door is locked by closing the opening by the locking device, so that the circuit breaker does not jump outside when the door is opened unnecessarily. .

(2) It is desirable that the blower unlocks the locking device at the same time that air is supplied into the circuit breaker. It may be unlocked.
The unlocking timing of the locking device does not hinder the extension of the circuit breaker in the horizontal direction unless the air is supplied into the circuit breaker.

(3) It is desirable that the locking device is attached to the door or the box.
If a locking device is retrofitted to a telescopic blocking device that was originally not equipped with a locking device, it is easier to attach it to the door, but if you want to install a locking device from the beginning, you should attach it to the box. good too.

(4) It is desirable that the locking device is always in a locked state, holds the unlocked state for a certain period of time including the time for the door to open, and then returns to the locked state.
If the locking device is operated by a solenoid, for example, and is configured to be locked when the solenoid is not energized and unlocked when the solenoid is energized, it is sufficient to energize for a certain period of time, and it is necessary to energize the solenoid at all times. no.

(5) It is preferable that a revolving light is mounted on the outside of the box body, and that the revolving light rotates for the same time as the locking device is in the unlocked state.
When the revolving light rotates for the same time as the time when the locking device is in the unlocked state, a person who visually recognizes the rotating motion of the revolving light can predict that the circuit breaker will extend in the horizontal direction. know the guidelines.

(6) It is preferable that a luminous bulb for illuminating the inside of the circuit breaker is mounted in the box and emits light for the same time as the operating time of the blower.
When the inside of the extended circuit breaker is illuminated with a luminous bulb, the circuit breaker can be visually recognized even at night, and safety is improved.

(7) The locking device includes a solenoid that operates when energized, an operating rod that engages or disengages the door and the box body by inserting or withdrawing the solenoid, and separating the operating rod from the solenoid. a spring for biasing in a direction, a guide pin extending in a direction intersecting the direction of movement of the operating rod, and a support plate provided with an elongated hole into which the guide pin is inserted to guide the guide pin, When the solenoid is energized, the actuating rod is pulled toward the solenoid against the urging force of the spring and becomes an unlocked state. When energization is stopped, the actuating rod is separated from the solenoid by the urging force of the spring. It is desirable to be configured to be in a locked state.
When the solenoid is energized, the actuating rod is pulled toward the solenoid against the urging force of the spring and becomes an unlocked state. When energization is stopped, the actuating rod is separated from the solenoid by the urging force of the spring. It is configured to be in a locked state, and since it is sufficient to energize the solenoid only for the time in the unlocked state, the energization time can be reduced, the power consumption can be suppressed, and the life of the solenoid can be extended. .

(8) A cylinder to which a lever is fixed is oscillatably attached to the support plate, and a key hole is formed in the cylinder for inserting and rotating the cylinder. It is desirable that when a key is inserted and rotated, the lever abuts against the guide pin and pushes the guide pin upward toward the solenoid against the biasing force of the spring, thereby unlocking.
When the key is inserted into the keyhole and rotated, the lever comes into contact with the guide pin and pushes the guide pin upward toward the solenoid against the biasing force of the spring to enter an unlocked state, so that the solenoid is not energized. Both can be manually unlocked with a key.

In the present invention, the blower is operated to supply air into the circuit breaker, the locking device is unlocked, and the wind pressure from the blower increases the air pressure inside the circuit breaker. Since the door is opened by , the door is unlocked before or at the same time as the circuit breaker expands, and the circuit breaker housed in the box pushes the door open by the internal air pressure, so the door moves smoothly in the horizontal direction. It is possible to extend to
On the other hand, when the circuit breaker is housed in the box, the door is locked by closing the opening by the locking device, so that the circuit breaker does not jump outside when the door is opened unnecessarily. .

It is a front view of the state where the door of one embodiment of the present invention was closed. It is a front view of the state where the door of one embodiment of this invention was opened. BRIEF DESCRIPTION OF THE DRAWINGS It is a partially exploded perspective view of the locking device of one embodiment of this invention. 1 is a cross-sectional view of a state in which a circuit breaker according to an embodiment of the present invention is extended; FIG. FIG. 4 is a side view of a state in which the circuit breaker according to one embodiment of the present invention is extended; It is a time chart which shows the operation|movement timings, such as a solenoid of one embodiment of this invention. 1 is a block diagram showing an overview of functions of an electric circuit according to an embodiment of the present invention; FIG. It is a front view of the state where the door of other embodiment of this invention was closed. It is a front view of the state where the door of other embodiment of this invention was opened. FIG. 5 is a partially exploded perspective view of a locking device according to another embodiment of the present invention; 4 is a time chart showing operation timings of solenoids and the like according to another embodiment of the present invention; FIG. 5 is a block diagram showing an overview of functions of an electric circuit according to another embodiment of the present invention;

An embodiment of the present invention will be described below with reference to the drawings.
First, the overall outline will be explained.
In FIG. 4, 1 is a rectangular box fixed to the upper end of a base 6, and has an opening 2 on the right side. A circular ventilation hole 9 is formed in the blower 3 at a portion corresponding to the intake hole.

Inside the box 1, a stretchable semi-transparent bag-like circuit breaker 4 which is slightly air permeable is mounted so as to surround the exhaust port of the blower 3. When air is supplied into the circuit breaker 4 (see the arrow in FIG. 4), the air pressure inside the circuit breaker 4 rises and extends substantially horizontally from the opening 2 of the box 1 to maintain the tension mode. to block the passage 5 such as the road (see FIG. 5).
After the circuit breaker 4 reaches the tension state, even if air continues to be supplied from the blower 3, the supplied air is discharged outward from the air-permeable portion of the circuit breaker 4, and the blower 3 The amount of air supplied from the circuit breaker 4 and the amount of air leaked from the circuit breaker 4 are balanced so that the circuit breaker 4 maintains a tensioned state and does not burst due to air pressure.

The circuit breaker 4 has a horizontal length of 5 m in an extended state, a cylindrical outer diameter of 50 cm, and a slightly pointed end. A plurality of water strips 7 are attached to the lower edge.
The circuit breaker 4 is made of polyester and has a thickness of 0.5 mm.
A triangular auxiliary plate 10 for fixing the base 6 to the ground is fixed to the lower end of the base 6, and a control panel box 11 is mounted in the middle of the base 6 in the vertical direction. A red rotating light 12 is mounted on the top of the box 1 .

Next, when the operation of the blower 3 is stopped, the air pressure inside the circuit breaker 4 is lowered and the tension is relaxed.
Therefore, when the underpass is submerged to a dangerous depth, or when a disaster occurs, and it becomes necessary to block passage of the passage 5 at a predetermined position, the blower 3 is operated to open the circuit breaker 4. When air is supplied, the air pressure inside the circuit breaker 4 rises and extends substantially horizontally from the opening of the box body to maintain the tension state and block the passage 5 .

Further, when it is no longer necessary to block the passage, the operation of the blower 3 is stopped as described above, the air pressure inside the circuit breaker 4 is reduced, the tension is relaxed, and the blocked state is released. , the blocked state of the passage 5 is released.

Next, the doors 13A and 13B and the locking device 14 attached to the opening 2 of the box 1 will be described with reference to FIGS. 1 to 3. FIG.
In the front view, the right door 13A and the left door 13B are attached to the box body 1 by means of hinges 15 at their vertical base edges so as to be able to swing in the horizontal direction. is installed.
In FIG. 1, the edge portions of the right door 13A and the left door 13B are slightly overlapped, and the edge portion of the right door 13A is closer to the edge portion of the left door 13B. The left side door 13B is not opened unless the door 13A is opened.

The locking device 14 includes a solenoid 17 which is connected to a wire 16 and operates when energized, and an operating rod 18 which is attached to the lower end of the solenoid 17 so as to be vertically movable and which is lifted upward when the solenoid 17 is energized. ing. A guide pin 19 extending horizontally is implanted at a predetermined position of the operating rod 18 . A coil spring 20 for biasing the operating rod 18 downward is wound around the outer periphery of the operating rod 18 between the lower end of the solenoid 17 and the guide pin 19 . A lower end portion of the operating rod 18 is obliquely cut.

An engaging hole 21 into which the operating rod 18 can be inserted is formed in a portion of the bottom surface of the box 1 which corresponds directly below the operating rod 18 when the right door 13A is closed. The solenoid 17 is fixed to a support plate 22 having a flat surface in the vertical direction, and the support plate 22 is fixed to the rear surface of the right door 13A.
The support plate 22 is provided with an elongated hole 23 through which the guide pin 19 implanted in the operating rod 18 is inserted and slid inside.
Accordingly, the guide pin 19 slides vertically in the long hole 23 as the actuating rod 18 moves up and down according to whether the solenoid 17 is turned on or off.
When the solenoid 17 is energized, the actuating rod 18 is pulled toward the solenoid 17 against the urging force of the coil spring 20, and the lower end of the actuating rod 18 reaches the bottom surface of the box 1. It comes out upward from the engagement hole 21 and becomes an unlocked state.
Further, when the energization is stopped, the actuating rod 18 is separated from the solenoid 17 by the urging force of the coil spring 2 to be locked.

A cylinder 25 to which a lever 24 is fixed is attached to the support plate 22 so as to be able to swing. It is When the key 27 is inserted into the keyhole 26 and rotated, the lever comes into contact with the guide pin 19 and pushes the guide pin 19 upward toward the solenoid against the urging force of the spring.
An opening 28 is formed in a portion of the right door 13A corresponding to the keyhole 26, and even if the right door 13A is closed, the key 27 can be inserted into the keyhole 26 from the outside through the opening 28. can.
Therefore, even if the solenoid 17 is de-energized, it can be unlocked by inserting the key 27 into the keyhole 26 and rotating it.

Next, operations of the revolving lamp 12, the solenoid 17, the blower 3 and the luminous bulb 8 will be described with reference to FIGS.
FIG. 7 is a block diagram showing the outline of the functions of the electric circuit. A power supply 29 is formed by an AC power supply or a battery, and is directly connected to the blower 3 and the light bulb 8 via a switch 30. 12 and solenoid 17 are connected to the switch 30 via a timer 31 . These circuits are housed in the control panel box 11 .
When the switch 30 is turned on with the circuit breaker 4 housed in the box 1 and the left and right doors 13A and 13B closed (see FIG. 1), the blower 3 starts blowing air. At the same time, the luminous bulb 8 is also lit.

At the same time, the revolving light 12 also starts operating and the solenoid 17 is energized, the locking device 14 is unlocked, the circuit breaker 4 starts expanding, the left and right doors 13A and 13B are opened, and the The circuit breaker 4 starts expanding horizontally.
At this time, the solenoid 17 and the revolving light 12 are energized by the timer 31 for only 60 seconds, during which the left and right doors 13A and 13B are opened. There is no problem if the operating rod 18 of 17 is lowered. In addition, it takes about 30 seconds from when the circuit breaker 4 starts to expand until it becomes in the tension mode.

Therefore, as is clear from FIG. 6, when the blower 3 operates, the luminous bulb 8 and the rotating lamp 12 emit light at the same time, the locking device 14 is unlocked, and after 30 seconds the circuit breaker 4 is in a tension state. Further, after 30 seconds, the revolving light 12 stops and the solenoid 17 of the locking device 14 is deenergized, and the operating rod 18 is lowered by gravity and the urging force of the coil spring 20 .
The time setting of the timer 31 may be 60 seconds or less or longer than 60 seconds, and the blower 3 and the luminous bulb 8 are required to keep the circuit breaker 4 in a tight state, that is, to block the passage and the like. It should be operated for a certain period of time (X hours).
When the circuit breaker 4 is housed in the box 1, it is sufficient to push the operating rod 18 upward against the force of the coil spring 20 with the key 27 or a fingertip.

Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 12. FIG.
In these figures, the same reference numerals are given to the same parts as in the above-described one embodiment, and the description thereof will be omitted.
8 to 10, on the side of the inner ceiling surface of the box 1 corresponding to the right door 13A, a retainer plate 32 having an L-shaped cross section and having four screw holes 33 is attached by screws (not shown). ) is fixed. A solenoid 34 is fixed to the vertical surface of the holding plate 32, and its magnetically attached portion (attracted by magnetic force) 35 is configured to selectively magnetically attach to the back side of the right door 13A.

When the right door 13A itself is made of a magnetic material such as iron, the right door 13A is directly magnetically attached to the magnetized portion 35 of the solenoid 34. When it is formed of a body, it is preferable to fix a magnetic member such as an iron piece to a portion corresponding to the magnetized portion 35 inside the right door 13A.
When the solenoid 34 is energized, a magnetic field is generated, and when the right door 13A is closed in the energized state, the solenoid 34 is fixed to the opening 2 as shown in FIG.

Next, operations of the revolving lamp 12, the solenoid 34, the blower 3 and the luminous bulb 8 will be described with reference to FIGS. 11 and 12. FIG.
FIG. 12 is a block diagram showing the outline of the functions of the electric circuit. The main switch 35 is directly connected to the blower 3 and the luminous bulb 8 , and is also connected to the revolving lamp 12 via the timer 31 .
The power source 29 is connected to the solenoid 34 via a solenoid switch 36, and the main switch 35 is also connected to the solenoid switch 36. The main switch 35 and the solenoid switch 36 have an OR relationship. , 36 are controlled to be alternatively conductive. These circuits are housed in the control panel box 11 .

When the circuit breaker 4 is housed in the box 1, the solenoid switch 36 is turned on, during which the solenoid 34 generates a magnetic field to close the left and right doors 13A and 13B. It will remain fixed to the opening 2 .
At the time (T1) when it is necessary to operate the circuit breaker 4, when the operator turns on the main switch 35, the solenoid switch 36 is turned off at the same time, and the power supply to the solenoid 34 is cut off, thereby shutting down the locking device. 14 is unlocked. When the main switch 35 is turned on, the locking device 14 is unlocked, and at the same time, the blower 3 operates to supply air into the circuit breaker 4, and the bulb 8 emits light for a certain period of time t ( The revolving light 12 rotates for the time required for the circuit breaker 4 to complete extension.

Further, when the circuit breaker 4 is retracted (T2), if the operator turns off the main switch 35, the blower 3 stops operating, the light bulb 8 is extinguished, and the solenoid switch 36 is turned on. , and the solenoid 34 is energized to generate a magnetic field.
When an operator or the like shrinks the circuit breaker 4 and stores it in the box 1 and closes the left and right doors 13A and 13B, it is locked by the locking device 14 in the same manner as described above.

Some solenoid switches generate a magnetic field when not energized and stop the magnetic field when energized. That is, while the solenoid is not energized, a magnetic field is generated and the doors 13A and 13B are magnetized and fixed to the opening 2. FIG.
On the other hand, when the solenoid is energized, the magnetic field is released and the doors 13A and 13B can be separated from the opening 2. FIG.

1 box, 2 opening, 3 blower, 4 circuit breaker, 5 passage (road), 6 base, 7 water slice, 8 light emitter, 9 ventilation hole, 10 auxiliary plate, 11 control panel box, 12 red rotating light, 13A right door, 13B left door, 14 locking device, 15 hinge, 16 electric wire, 17 solenoid, 18 operating rod, 19 guide pin, 20 coil spring, 23 long hole, 24 lever 25 cylinder, 26 keyhole, 27 key, 28 Aperture, 29 power supply, 30 switch, 31 timer, 32 holding plate, 33 screw hole, 34 solenoid, 35 main switch, 36 solenoid switch.

Claims (12)

A blocking device for blocking a passage, comprising:
a box supported by a base and provided with a horizontally open opening in one side wall;
a blower for blowing air attached to the other inner wall side of the box;
a stretchable bag-shaped circuit breaker mounted inside the box so as to surround the exhaust port of the blower;
a door provided in the opening for opening and closing the opening;
a locking device provided in association with the door for fixing and locking the door in a closed state;
is provided,
When the blower is operated to supply air into the circuit breaker, the locking device is unlocked, and the air pressure inside the circuit breaker rises due to the air pressure from the blower, which causes the door to open. When opened and subsequently the circuit breaker extends substantially horizontally from the opening to block the passageway while maintaining tension, the air pressure inside the circuit breaker is stopped by deactivating the blower. A retractable shut-off device, characterized in that it is constructed such that the tension is reduced to relieve the tension and release the blockage. 2. A telescopic circuit breaker according to claim 1, wherein said blower simultaneously supplies air into said circuit breaker and simultaneously unlocks said locking device. 2. The telescoping device of claim 1, wherein said blower unlocks said locking device before air is supplied into said circuit breaker. 4. The telescopic blocking device according to any one of claims 1 to 3, wherein said locking device is attached to said door. 4. The telescopic blocking device according to any one of claims 1 to 3, wherein said locking device is attached to said box. 6. The telescopic door according to any one of claims 1 to 5, wherein said locking device is always in a locked state, maintains an unlocked state for a certain period of time including the time for said door to open, and then returns to a locked state. shut-off device. 7. The telescopic structure according to any one of claims 1 to 6, wherein a rotating light is attached to the outside of said box body, and said rotating light rotates for the same time as said locking device is in an unlocked state. shut-off device. 8. The telescopic breaker according to claim 1, wherein a luminous bulb for illuminating the interior of said breaker is mounted in said box and emits light for the same time as said blower is operating. The locking device includes a solenoid that operates when energized, an operating rod that engages or disengages the door and the box by inserting or withdrawing the solenoid, and the operating rod is attached in a direction away from the solenoid. a guide pin extending in a direction intersecting the operating direction of the operating rod; and a support plate provided with an elongated hole into which the guide pin is inserted to guide the guide pin. When energized, the actuating rod is pulled toward the solenoid against the urging force of the spring to enter the unlocked state. 9. The telescopic shut-off device according to any one of claims 1 to 8. A cylinder to which a lever is fixed is oscillatably attached to the support plate, and a keyhole is formed in the cylinder for inserting and rotating the cylinder, and a key is inserted into the keyhole. 10. The telescopic shut-off device according to claim 9, wherein when the lever is rotated, the lever comes into contact with the guide pin and pushes the guide pin upward toward the solenoid against the urging force of the spring to be in the unlocked state. The locking device is composed of a solenoid that operates when energized, and the door that is selectively magnetically attached to the solenoid. 2. The telescoping device of claim 1, wherein the device is secured in a closed condition to a body opening. The locking device is composed of a solenoid that operates when energized, and the door that is selectively magnetically attached to the solenoid. 2. The telescopic shut-off device according to claim 1, wherein the door is fixed to the box body in a closed state, and the magnetized state is released by energizing the solenoid.

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