JPH09318353A - Level detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable level detection in the dark by allowing a detector to display with light when the level of a sample surface is detected. SOLUTION: When a contact part 2 is made to contact to an upper surface of a sample surface HK and a switch 21 is turned on, if the upper surface is level, air bubbles of a detector 4 are positioned at the center in the longitudinal direction of a ceiling surface in a cylindrical vessel 9, and a terminal 12 of the detector 4 does not contact to a water, thus, in electrically non-conduction state to a terminal 13. Therefore, a transistor comes into an off state, while the other transistor comes into an on state, for a lamp 20 to turn on, thus, level condition of the sample surface HK is confirmed even in the dark. Further, if detectors 4a and 4b are provided, the detector 4a detects vertical state of the sample surface and the detector 4b 45 deg. inclination of it, in the same configuration and operation as the detector 4, for realizing a level detecting device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal detecting device, and more particularly, to a surface to be detected, for example, one surface of a pillar of a building, which is detected when the contact portion is in a horizontal state. The present invention relates to a horizontal detection device (device) for displaying.

[0002]

2. Description of the Related Art As a horizontal detecting device of this type, a main body having an abutting portion for abutting against a surface to be detected and a body mounted on the main body for detecting the abutting portion in a horizontal state are detected. A transparent glass cylindrical container in which the detector is attached to the main body, and a small amount of air is enclosed in the cylindrical container, and water that floats the air as one bubble Those consisting of and are known. In other words, this horizontal detection device indicates that the surface to be detected is in a horizontal state when the air bubbles floating in the cylindrical container are in the central position in the longitudinal direction of the cylindrical container.

[0003]

However, in the above-mentioned horizontal detecting device, the position of the bubble in the small cylindrical container must be accurately confirmed visually. Especially in a building under construction, it was often dark, so it was difficult to confirm the position. Therefore, one of the main objects of the present invention is to provide a horizontal detection device that can perform lighting display when the detector detects the horizontal of the surface to be detected, thereby enabling horizontal detection even in darkness.

[0004]

According to the present invention, there is provided a main body having at least one abutting portion for abutting against a surface to be detected, and detecting the abutting portion mounted on the main body when the abutting portion is in a horizontal state. And a lighting display circuit that is also mounted on the main body and that performs lighting display based on a detection signal from the detector.

That is, the horizontal detection device according to the present invention is
When the detector detects the horizontal state of the contact portion, that is, the horizontal state of the detected surface, the detector is turned on to enable horizontal detection even in the dark. Here, as the detector, a cylindrical container attached to the main body, a conductive liquid filled in the cylindrical container, one bubble suspended in the liquid so as to float, and the contact of the main body A preferable example is one including at least one first terminal that can be located in the bubble when the part is in the horizontal state, and a second terminal that electrically contacts the liquid. In this case, the lighting display circuit is provided. As a preferable one, a lamp and a power source for lighting the lamp when the first and second terminals are in a non-conducting state are mentioned.

The detector according to the present invention further includes:
The tubular container mounted on the main body, the gas and the conductive liquid filled in the tubular container, and the liquid near the both ends of the tubular container when the abutting portion of the main body is in the horizontal state. A preferable example is a device including a pair of terminals that come into contact with the liquid surface. In this case, the lighting display circuit is a lamp and the lamp is lit when the first and second terminals are in a conductive state. The thing consisting of a power supply is mentioned as a preferable thing.

In the present invention, the abutting portion means a surface or a linear portion for abutting against a detected portion (a surface or a linear portion for which it is desired to check whether or not it is in a horizontal state). A preferable example is a mold member having a flat surface, and a mold member having a substantially concave cross section in the following embodiments. In addition, when it is desired to detect the horizontalness of a flat surface as the detected portion, it is necessary to contact the contacting portion with the flat surface at least in the intersecting direction to detect the horizontality of each.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on an embodiment shown in the drawings. The present invention is not limited to this. FIG. 1 is a front view showing one embodiment of the present invention, FIG. 2 is an AA enlarged sectional view thereof,
3 is an enlarged cross-sectional view taken along line BB, and FIG. 4 is the lighting display circuit of FIG.

In FIG. 1-4, a horizontal detection device (level detection device) 1 is an elongated rectangular parallelepiped case-shaped main body 3 having an abutting portion 2 for abutting on a surface HK to be detected, and a main body 3 of this case. The detector 4 mounted on the main body and the detector 4 for detecting the contact portion 2 when the contact portion 2 is in a horizontal state.
It mainly consists of a lighting display circuit 6 for lighting and displaying the lamp 5 based on the detection signal from.

The contact portion 2 is a die member having a substantially inverted concave cross section, and a pair of opposing free ends 7 and 8 are brought into contact with the surface to be detected HK. The detector 4 is a cylindrical container 9 made of transparent glass.
And water 10 filled in the container, one air bubble 11 introduced into the water in a freely floating manner, and a pair of terminals 12.1.
The first terminal 1 of the pair of terminals
2 is substantially T-shaped, and the air bubble 11 is located at the center in the longitudinal direction along the ceiling surface inside the cylindrical container 9 when the contact portion 2 of the main body is in the horizontal state. Can be located (in a position that does not come into contact with water). One second terminal 13
Is always in contact with water.

The lighting display circuit 6 is connected to the second terminal 13 of the detector 4.
Is connected to one end of the fixed resistor 14, and the base of the first transistor 15 is connected to this connection point through the protective resistor 16.
The second transistor 1 is connected to the collector of the first transistor 15.
The base of No. 7 is connected via the protective resistor 18, and one end of the fixed resistor 19 is connected. Then, one end of the lamp 20 is connected to the collector of the second transistor 17, and the other end is directly connected to the power source (battery) via the push button switch 21.
It is connected to one end of 22. The other end of the direct power source 22 is connected to the emitters of the first and second transistors 15 and 17 and the other end of the fixed resistor 14, and the first terminal 12 of the detector 4 and the other end of the fixed resistor 19 are connected to the other of the lamp 20. Connected to the end. The push button switch 21 has a rubber cover 2 for waterproofing.
5, the direct power source 22 is housed in a battery case 23 mounted on the main body 3 in a replaceable manner and waterproof by a rubber ring 24.

Thus, the horizontal detection device 1 has the detection surface H
K, for example, when the contact portion 2 is brought into contact with the upper surface of the horizontal pillar of the house under construction and the push button switch 21 is turned on, if the upper surface of this horizontal pillar is in a horizontal state, the air bubble 11 of the detector 4 is cylindrical. It is positioned at the center of the ceiling surface in the container 9 in the longitudinal direction, so that the first terminal 12 of the detector 4 does not come into contact with water.
The terminal 13 is electrically non-conducting. Therefore, the first transistor 15 is turned off, while the second transistor 17 is turned on, the lamp 20 is turned on, and the horizontal state of the detection surface HK can be confirmed even in the dark. When the surface HK to be detected is not in the horizontal state, the first terminal 12 of the detector 4 comes into contact with water, so that the second terminal 13 is electrically connected and the first transistor 15 is opposite to the one described above. The lamp 20 is not turned on because the second transistor 17 is turned off and the second transistor 17 is turned off.

The horizontal detector 1 is further provided with a second detector as shown in FIG.
When the detector 4a and the third detector 4b are provided, the second detector 4a has the same configuration and function as the detector 4 with respect to the vertical of the surface to be detected and the third detector 4b has the inclination of 45 degrees of the surface to be detected. Each of them can be detected and can be referred to as a level detection device. Although the first terminal of the detector 4 has a substantially T-shape,
It may be letter-shaped or branched.

FIG. 5 is a schematic front view showing another embodiment of the detector. In FIG. 5, the lamp is turned on when both the branch portions 26 and 27 of the first terminal 12 are located inside the air bubble 11. Of course, the tip of the first terminal of each detector is preferably in a water-repellent state and is coated with a water-repellent paint. Unlike the above embodiment, as a detector,
It is also possible to use one that detects the liquid level of the liquid contained in the cylindrical container.

FIG. 6 is a view corresponding to FIG. 1 showing another embodiment,
FIG. 7 shows the lighting display circuit. 6 to 7, the detector 44 is a cylindrical container 49 attached to the main body 43, air 51 and water 50 filled in the cylindrical container, and the contact portion 42 of the main body 43 in a horizontal state. Cylindrical container 4
A pair of terminals 5 that come into contact with the water surface of water 50 near both ends of
It consists of 2.53. The lighting display circuit 46 connects one end of the fixed resistor 54 to the second terminal 53 of the detector 44,
The base of the transistor 55 is connected to the protection resistor 56 at this connection point.
Connected through. The collector of the transistor 55 is connected to one end of a lamp 60, the other end is connected to one end of a DC power supply (battery) 62 via a push button switch 61, while the emitter of the transistor 55 is connected to the other end of a fixed resistor 54. And the other end of the DC power source 62 are connected. The first terminal 52 of the detector 44 is connected between the other end of the lamp 60 and the push button switch 61.

Thus, the horizontal detection device 41 is provided with the surface H to be detected.
If K is in the horizontal state, the water on the surface of the water 50 of the detector 44 will be
The two terminals 52 and 53 come into contact with each other, and the terminals 52 and 53 are electrically connected via water. Therefore, the transistor 55 is turned on, the lamp 60 is turned on, and the horizontal state of the detected surface HK can be confirmed even in the dark. The other configurations and operations are the same as those of the embodiment shown in FIGS.

[0017]

According to the present invention, when the detector detects the horizontal state of the contact portion, that is, the horizontal state of the surface to be detected, the detector is turned on to enable horizontal detection even in the dark.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG. 1;

FIG. 4 is a lighting display circuit of FIG.

FIG. 5 is a schematic front view showing another embodiment of the detector.

FIG. 6 is a view corresponding to FIG. 1 showing another embodiment.

FIG. 7 is also a view corresponding to FIG.

[Explanation of symbols]

 1 level detection device 2 contact part 3 main body 4 detector 5 lamp 6 lighting display circuit 7, 8 free end 9 cylindrical container 10 water 11 air bubble 12 first terminal 13 second terminal 14 fixed resistance 15 first transistor 16 protection Resistance 17 Second transistor 18 Protection resistance 19 Fixed resistance 20 Lamp 21 Push button switch 22 DC power supply 23 Battery case 24 Rubber ring 25 Rubber cover 26, 27 Branch

Claims (7)

[Claims] 1. A main body having at least one abutting portion that abuts against a surface to be detected, a detector mounted on the main body for detecting the abutting portion when the abutting portion is in a horizontal state, and the same main body. And a lighting display circuit which is mounted on the lighting display circuit for lighting based on a detection signal from the detector. 2. A detector comprises a tubular container mounted on the main body, a conductive liquid filled in the tubular container, one bubble floatably introduced into the liquid, and a main body of the main body. The lighting display circuit includes a lamp and a second terminal electrically contacting the liquid, the lighting display circuit including the lamp and the first terminal that can be positioned in the bubble when the contact portion is in the horizontal state. The horizontal detection device according to claim 1, further comprising a power supply which is turned on when the first and second terminals are in a non-conductive state. 3. The detector comprises a tubular container mounted on the main body, a gas and a conductive liquid filled in the tubular container, and the tubular container when the contact portion of the main body is in a horizontal state. The lighting display circuit includes a pair of terminals that come into contact with the liquid surface of the liquid in the vicinity of both ends of the container, and the lighting display circuit includes a lamp and the pair of terminals when the pair of terminals is electrically connected through the liquid. The horizontal detection device according to claim 1, comprising a power supply for lighting the lamp. 4. The horizontal detector according to claim 2, wherein the cylindrical container of the detector is transparent and the position of bubbles in the liquid can be confirmed from the outside. 5. The horizontal detection device according to claim 2, wherein the lighting display circuit includes a switch for turning off the power supply. 6. The horizontal detection device according to claim 1, and a second detection device mounted on the main body of the horizontal detection device for detecting that the contact portion of the horizontal detection device is in a state of being vertical or at 45 degrees with respect to the horizontal. And a second lighting display circuit that is mounted on the main body of the horizontal detection device and that performs lighting display based on a detection signal from the second detector. 7. The level detecting device according to claim 6, wherein the detector of the horizontal detecting device also functions as the second detector.