JP2009121916A - Inclination detecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily-placeable inclination detection device capable of detecting even little inclination change inexpensively with high sensitivity. <P>SOLUTION: This device is equipped with a pendulum member pivoted rockably on a support shaft provided on a substrate, a rocking amplifying mechanism for amplifying and rocking furthermore than rocking of the pendulum member in linkage with movement of the pendulum member, a reporting part for reporting inclination of the substrate to the pendulum member based on rocking amplified by the rocking amplifying mechanism, and a detection part for detecting the inclination of the substrate to the pendulum member based on rocking amplified by the rocking amplifying mechanism. The rocking amplifying mechanism is constituted of a linked object whose one end in the length direction is provided on the substrate rockably through the support shaft and whose other end in the length direction is linked and connected to the pendulum member through a linking shaft, and an enlarged amplified object extending from one end in the length direction of the linked object, and a distance from a fulcrum of the support shaft to the upper end of the enlarged amplified object is longer than a distance from the fulcrum of the support shaft to a fulcrum of the linking shaft. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an inclination detection device for detecting an inclination of an installation place.

  Cliffs and steep slopes in the vicinity of houses and structures can cause slope collapse due to loose ground due to heavy rain, for example. It will be encountered.

  In this way, in private houses and structures located above or below cliffs and steep slopes, unless damage is foreseen, physical damage as well as human damage will occur as a result of slope failure. Invite a situation that occurs.

  Therefore, various methods such as GPS (Global Positioning System), AE (Acoustic Emission) sensor, tilt sensor, cable disconnection detection method, cable tension detection method, etc. have been conventionally used as methods for detecting such changes in the ground. There can be seen a method of making a judgment based on observation records of these various sensors using a sensor, and a method in which a monitoring person visits a cliff or a steep slope directly to detect signs of collapse.

For example, as a tilt sensor system, a conventional system for detecting the collapse of a slope of a train track detects a change from a vertical posture to a tilt posture, and transmits a radio wave having a predetermined frequency. An alarm receiver comprising a receiver that receives radio waves transmitted from the collapse detection sensor and a display that displays that the receiver has received radio waves is provided, and the collapse detection sensor is installed in a vertical position at the monitored location. Thus, the alarm receiving device displays on the display that the radio wave of the predetermined frequency has been received, so that the collapse of the installation place of the collapse detection sensor is determined. The train station is informed that the station has collapsed and tries to stop the train. (See Patent Document 1)
Japanese Patent Laid-Open No. 11-101638

  However, the conventional determination method based on observation records using a sensor has a drawback that a power source for operating the sensor is always necessary.

  In addition, the tilt sensor type collapse detection sensor has low sensitivity to the tilt angle, and it is difficult to detect it unless the tilt angle is normally changed by about 10 degrees. If it cannot be detected, the detection will be delayed when the slope collapses, so there will be a problem that the notification of earth and sand disaster will be delayed and the disaster will be encountered.

  In addition, the conventional system described above is expensive to construct and maintain.

  On the other hand, in the method in which a watchman patrols and artificially discovers the signs of collapse such as cliffs and steep slopes, until the remarkable signs appear on the surface of the earth, the slopes are tilted so much that they have collapsed. It is difficult to discover.

  The present invention has been developed in view of the above circumstances, and the object of the present invention is to detect inclination that can be easily installed, and can detect a slight inclination change with high sensitivity at a low cost. To provide an apparatus.

In order to achieve the above object, the invention described in claim 1
A pendulum member pivotally supported on a support shaft provided on the base body;
In association with the movement of the pendulum member, a swing amplification mechanism that amplifies and swings more than the swing of the pendulum member;
An informing unit is provided for informing the inclination of the base body with respect to the pendulum member based on the oscillation amplified by the oscillation amplifying mechanism.

The invention described in claim 2
A pendulum member pivotally supported on a support shaft provided on the base body;
In association with the movement of the pendulum member, a swing amplification mechanism that amplifies and swings more than the swing of the pendulum member;
A detection unit is provided for detecting the inclination of the base body with respect to the pendulum member based on the swing amplified by the swing amplification mechanism.

  According to a third aspect of the present invention, in the swing amplification mechanism according to the first or second aspect, one end in the length direction is provided on the substrate so as to be swingable via a support shaft, and the other end in the length direction. Is composed of an interlocking body that is interlocked and connected to the pendulum member via an interlocking shaft, and an expansion amplifying body that extends from one end in the longitudinal direction of the interlocking body, and from the fulcrum of the support shaft to the upper end of the expansion amplifying body. The distance is longer than the distance from the fulcrum of the support shaft to the fulcrum of the interlocking shaft.

  According to a fourth aspect of the present invention, the notifying unit according to the first or third aspect is provided at a tip of a display plate having a scale for displaying an inclination angle and an enlarged amplification body of a swing amplification mechanism. It is characterized by comprising display hands.

  According to a fifth aspect of the present invention, the detection unit according to the second, third, or fourth aspect controls a magnet provided on the swing amplification mechanism side, a reed switch provided on the substrate side, and driving of the detection unit. And a radio wave transmitter for transmitting a predetermined radio wave to the receiver via the drive controller.

  According to a sixth aspect of the present invention, the detection unit according to the second, third, or fourth aspect controls a magnet provided on the swing amplification mechanism side, a reed switch provided on the substrate side, and driving of the detection unit. And a transmission circuit for transmitting a predetermined electric signal through the drive controller.

  According to the first aspect of the present invention, by the combination of the pendulum member and the swing amplification mechanism, a minute inclination can be notified accurately and reliably by the notification unit.

  According to the second aspect of the present invention, the combination of the pendulum member and the swing amplification mechanism makes it possible to accurately and reliably detect a small inclination, and thus, for example, a quick and accurate prediction at an initial stage when a slope collapses. Through detection, it is possible to detect signs of collapse before slope failure.

  According to the third aspect of the present invention, the swing amplification mechanism is provided such that one end in the length direction is swingable on the substrate via the support shaft, and the other end in the length direction is connected to the pendulum member. In addition to the effects of the invention according to claim 1, the structure is composed of an interlocking body that is interlocked and connected via an extended amplification body that extends from one end in the length direction of the interlocking body. Inclination can be detected accurately and reliably at low cost, and handling and construction on site are also easy.

  According to the fourth aspect of the present invention, the notification unit includes a display plate having a scale for displaying the tilt angle, and a display needle provided at the tip of the enlarged amplification body of the swing amplification mechanism. Therefore, in addition to the effect of the invention according to claim 1 or 3, it is possible to reliably read a minute inclination of about 0.2 degrees displayed on the display board constituting the notification unit, Easy on-site construction.

  According to the fifth aspect of the present invention, the magnet provided on the oscillation amplification mechanism side, the reed switch provided on the substrate side, the drive controller for controlling the drive of the detector, and the drive controller In addition to the effect of the invention according to claim 2, 3 or 4 in addition to the effect of the invention according to claim 2, no electric power is normally required when no inclination is detected. In other words, it is not necessary to always supply power, so that equipment costs and maintenance costs can be kept low.

  According to the sixth aspect of the present invention, the detection unit includes a magnet provided on the oscillation amplification mechanism side, a reed switch provided on the substrate side, a drive controller for controlling the drive of the detection unit, By providing a transmission circuit for transmitting a predetermined electrical signal via the drive controller, in addition to the effect of the invention according to claim 2, 3 or 4, for example, a slight change in inclination of a cliff or a slope is highly sensitive. It is ideal as a system that detects the signs of collapse and informs nearby private houses and third parties.

FIG. 1 shows an embodiment of a tilt detection apparatus according to the present invention. The tilt detection apparatus 1 shown in FIG.
A substrate 2 arranged in a vertical direction;
A pendulum member 3 pivotally supported by a support shaft 21 provided on the upper back surface of the substrate 2;
In association with the pendulum member 3, a swing amplification mechanism 4 that swings larger than the swing (swing width) of the pendulum by swinging the pendulum member;
An informing unit 5 for informing the inclination of the substrate 2 relative to the pendulum member 3 based on the oscillation expanded by the oscillation amplifying mechanism 4;
A detection unit 6 for detecting the inclination of the substrate 2 with respect to the pendulum member 3 based on the swing expanded by the swing amplification mechanism 4 is provided.

  The pendulum member 3 includes a swing rod 31 formed in a strip shape and a weight 32 assembled to the lower end portion of the swing rod 31.

  The upper end of the swing rod 31 is supported by a support shaft 21 provided on the upper back surface of the substrate 2 through a bearing 22 so as to freely swing.

  The swing amplification mechanism 4 includes an interlocking body 41 interlocked with the pendulum 31 of the pendulum member, and an expansion amplifier 42 made of a metal wire assembled on the upper end of the interlocking body 41.

  The interlocking body 41 is formed of a strip-shaped plate material, and an upper end portion of the interlocking body 41 is supported on a support shaft 23 provided on the lower front surface of the substrate 2 through a bearing 24 so as to freely swing. The part is connected to the lower end of the swing rod 31 via an interlocking shaft 43.

  Specifically, a long hole-like through hole 25 extending substantially in the swinging direction of the pendulum member 3 is formed at the lower end portion of the substrate 2, while one end in the length direction of the interlocking shaft 43 is fixed to the lower end portion of the swing rod 31. Then, after inserting the other end in the length direction of the interlocking shaft 43 into the through-hole 25, the insertion end is inserted into the insertion hole 44 formed in the lower end of the interlocking body. As the collar 31 swings, the interlocking body 41 connected by the interlocking shaft 43 also swings with the support shaft 23 as a fulcrum.

  Further, the magnification amplifying body 42 has a distance from the fulcrum of the support shaft 23 to the upper end of the magnification amplifying body 42 that is five times the distance from the fulcrum of the support shaft 23 to the fulcrum of the interlocking shaft 43. The swing width of the upper end of 42 is enlarged five times as much as the swing width of the swing rod 31.

  Specifically, the distance from the fulcrum of the support shaft 23 to the upper end of the expansion amplifying body 42 is 75 mm, and the distance from the fulcrum of the support shaft 23 to the fulcrum of the interlocking shaft 43 is 15 mm. The swing width at the upper end is amplified five times as much as the swing width of the swing rod 31.

  The notification unit 5 is bent so as to be opposed to the display plate 51 formed by bending the upper end portion of the substrate 2 by 90 degrees with respect to the upper surface of the display plate 51 from the upper end of the magnification amplifying body 42. The display needle 52 is comprised.

  A scale 53 indicating the tilt angle of the substrate 2 is displayed on the upper surface of the display plate 51, and on the display plate 51 via the swing amplification mechanism 4 due to swinging of the swing rod 31 accompanying the tilt of the substrate 2. The display needle 52 swaying is pointed to the scale 53 corresponding to the inclination angle of the substrate 2.

  The detector 6 includes a permanent magnet 61, a pair of reed switches 62a and 62b, a warning indicator lamp 63 made of a light emitting diode, a drive controller 64, and a radio wave transmitter 65.

  The permanent magnet 61 is fixed to the display needle 52, and the reed switches 62a and 62b are embedded on the upper surface side of the display board 51 at the position of the scale corresponding to the inclination angle (2 degrees in the embodiment) to be detected. .

  The reed switches 62a and 62b are made of glass whose contact portions are sealed in order to ensure dust resistance, explosion resistance, and corrosion resistance.

  Thus, by adopting the swing amplification mechanism 4, even the small swing of the pendulum 31 in the pendulum member 3 associated with the tilt of the substrate 2, for example, a small swing of about 1 degree, is clearly displayed on the notification unit 5. Further, the installation intervals of the reed switches 62a and 62b can be widened, and there is a margin in the installation of the reed switches 62a and 62b.

  FIG. 7 is a diagram showing the configuration of the drive controller 64. The drive controller 64 continuously turns on the radio wave transmitter 65 when the reed switches 62a and 62b are turned on as the substrate 2 is tilted. Is configured to drive.

  That is, in the drive controller 64, the above-described pair of reed switches 62a and 62b are connected in parallel, and when one of the reed switches 62a or 62b is turned on, the current supplied from the battery V reduces the resistance R. Then, the warning indicator lamp 63 and the radio wave transmitter 65 are turned on, and once the reed switch 62a or 62b is turned on, the thyristor S is turned on, and then the reed switch 62a or 62b is turned off. The indicator lamp 63 and the radio wave transmitter 65 are configured to continue the on state.

  Thereby, even in a situation where the detection unit 6 can detect the inclination of the substrate 2 only for a moment, it is possible to reliably transmit an alarm signal.

  As shown schematically in FIG. 6, the tilt detection device 1 having the above configuration is used by being mounted in a cylindrical housing 10 together with a level 7. The upper opening of the housing 10 is covered with a lid so that the battery in the drive controller 7 can be replaced and maintenance of the tilt detection sensor 8 and the radio wave transmitter 65 can be easily performed. 11 is attached by screwing. The lid 11 is made of a transparent synthetic resin material so that the inside of the housing 10 can be seen from the outside.

  In addition, the level 7 is installed in the upper part in the housing | casing 10 so that an operator can visually observe when arrange | positioning the board | substrate 2 in the housing | casing 10 correctly in a perpendicular direction.

  The above-mentioned radio wave transmitter 65 only needs to be able to cover a distance of about several tens of meters between the inclination detecting device 1 and the receiver 8b described later, and is weak enough not to touch the radio wave law and has a preset frequency. Any device that transmits radio waves may be used.

  And the above inclination detection apparatus 1 incorporated in the housing | casing 10 is shown in the hole dug in the ground in the vicinity of the slope and the cliff where collapse is anticipated at the time of heavy rain, for example, as schematically shown in FIG. The case 10 is fixed with cement or the like. At the time of fixing, the housing 10 is set so that the substrate 2 faces in the vertical direction.

  On the other hand, to the house H near the slope or cliff, the antenna 8a for receiving the radio wave transmitted from the radio wave transmitter 65 of the inclination detecting device 1, the receiver 8b, and the resident are notified of the danger of landslide disaster. An alarm lamp 8c and an alarm buzzer 8d are installed.

  The above-described inclination detection device 1 may be installed in a scattered manner at a plurality of locations on a cliff, for example.

  Thus, since the above-described inclination detection device 1 employs a wireless system, it is not necessary to perform wiring work between the inclination detection device 1 and the receiver 8b described later, the construction work is extremely easy, and there is a concern about disconnection. Is also resolved.

  Moreover, in the above inclination detection apparatus 1, by combining the pendulum member 3 and the swing amplification mechanism 4, a small inclination can be accurately and reliably detected while being able to be produced in a small size and at a low cost. In addition, it is possible to monitor the change in the tilt angle over many years by reading the scale instructed via the magnification amplifying body 42.

  Further, by using the above-described inclination detection device 1, for example, it is possible to quickly and accurately predict or detect in the initial stage of slope failure, and the resident of the house can know the sign of the collapse before the slope collapse.

  In the above embodiment, the reed switches 62a and 62b are used for the detection unit 6. However, the present invention is not limited to this, and other proximity switches or contact switches may be used.

  The alarm by the detection unit 6 may be an alarm sound such as a buzzer or a siren, a sound by voice synthesis, a character or graphic display on a liquid crystal display, lighting / flashing of a lamp, or a combination thereof.

  In the above embodiment, the detection unit includes a magnet provided on the oscillation amplification mechanism side, a reed switch provided on the substrate side, a drive controller for controlling the drive of the detection unit, and the drive controller. However, the present invention is not limited to this, for example, a magnet provided on the swing amplification mechanism side and a reed switch provided on the substrate side. In addition, a drive controller for controlling the driving of the detection unit and a transmission circuit for transmitting a predetermined electric signal via the drive controller may be provided.

  Further, in the above embodiment, the enlarged amplifying body 42 is formed from a metal wire, but is not limited to this, and may be formed from plastic.

  Moreover, in the above embodiment, the housing 10 and the lid 11 are formed from a synthetic resin material, and the lid 11 is attached to the upper opening of the housing 10 by screwing. However, the present invention is not limited to this. The casing 10 and the lid 11 may be formed of a stainless material, and the lid 11 may be provided with a window formed of a transparent resin material so that the scale of the display plate 51 can be read. Moreover, you may make it attach the lid | cover 11 to the housing | casing 10 with a stopper.

The front view which shows one Embodiment of the inclination detection apparatus concerning this invention. FIG. Same side view. FIG. FIG. 1 is a schematic configuration diagram showing an embodiment of a tilt detection apparatus according to the present invention. Configuration diagram of drive controller Explanatory drawing which shows the usage example of the inclination detection apparatus concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inclination detection apparatus 10 Housing | casing 2 Board | substrate 21 Support shaft 3 Pendulum member 31 Pendulum 32 Weight 4 Oscillation amplification mechanism 41 Interlocking body 42 Enlargement amplification body 5 Notification section 51 Display board 52 Display needle 53 Scale 6 Detection section 61 Magnet 62a, 62b Reed switch 63 Warning indicator light 64 Drive controller 65 Radio wave transmitter

Claims (6)

  A pendulum member pivotally supported on a support shaft provided on a base, a swing amplifying mechanism that swings amplifying and swinging more than the swing of the pendulum member in conjunction with the movement of the pendulum member; An inclination detecting device comprising an informing unit for informing the inclination of the base body with respect to the pendulum member based on the oscillation amplified by the oscillation amplifying mechanism.   A pendulum member pivotally supported on a support shaft provided on a base, a swing amplifying mechanism that swings amplifying and swinging more than the swing of the pendulum member in conjunction with the movement of the pendulum member; An inclination detection apparatus comprising a detection unit for detecting the inclination of the base body with respect to the pendulum member based on the oscillation amplified by the oscillation amplification mechanism.   A swing amplifying mechanism, wherein one end portion in the length direction is provided on the substrate so as to be swingable via a support shaft, and the other end portion in the length direction is interlocked and connected to the pendulum member via the interlock shaft; And an enlarged amplifying body extending from one end in the length direction of the interlocking body, and the distance from the fulcrum of the support shaft to the upper end of the expanding amplifying body is greater than the distance from the fulcrum of the support shaft to the fulcrum of the interlocking shaft. The inclination detecting device according to claim 1, wherein the inclination detecting device is long.   The informing part is composed of a display plate having a scale for displaying an inclination angle, and a display needle provided at the tip of an enlarged amplification body of the swing amplification mechanism. The tilt detection device according to claim 1.   The detection unit receives a predetermined radio wave via the magnet provided on the oscillation amplification mechanism side, a reed switch provided on the substrate side, a drive controller for controlling the drive of the detection unit, and the drive controller. 5. The tilt detection device according to claim 2, further comprising a radio wave transmitter that transmits the signal toward the device.   The detection unit includes a magnet provided on the oscillation amplification mechanism side, a reed switch provided on the substrate side, a drive controller for controlling the drive of the detection unit, and a predetermined electrical signal via the drive controller. 5. The inclination detecting device according to claim 2, further comprising a transmission circuit for transmitting.

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