JPH06308144A - Fluid monitoring device - Google Patents

Abstract

PURPOSE:To automatically detect the position of a metal ball by forming a groove on the outside wall of a tube main body corresponding to the position where the force of pushing up for the metal ball caused by viscosity resistance when fluid flows balances with the force of compression spring suppressed from above, with a proximity sensor being attached in the groove. CONSTITUTION:A groove 17 is formed on an outside wall 16 of a transparent tube main body 2, and a proximity sensor 18 is attached in the groove 17. While fluid 11 flows, a metal ball stops at the place where the push-up force of a metal ball 6 due to viscosity resistance of the fluid 11 that flows around the metal ball 6 balances with the force of a compression spring 12 from above, and that position corresponds to the position of the groove 17. The proximity sensor 18 is attached at that stop position, and whether the metal ball 6 is in a specified position is automatically detected, so that whether a required amount of fluid 11 is flowing is determined.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid inspector capable of automatically detecting whether or not a fluid such as water or oil flows in a pipe system in a predetermined amount.

[0002]

2. Description of the Related Art Conventionally, a fluid inspecting device 30 has been used as a fair 4-4.
As is known in Japanese Patent No. 9579, a transparent tube main body 31 made of acrylic resin or tempered glass is used, and both ends of this tubular body 31 are connected to primary and secondary piping (not shown) of a fluid. The inlet side pipe joint 32 and the outlet side pipe joint 33 are connected, and the colored tubular display body 37 pressed by the compression spring 36 is joined to the end portion of the inlet side pipe joint 32. The colored tubular display body 37 is colored in a color such as red so that its presence can be easily seen from the outside.
And the 2nd circulation hole 41 is formed.

The first flow hole 40 is bored from the bottom, and the second flow hole 41 is provided with a through hole from the peripheral surface toward the first flow hole. The first of the colored tubular display bodies 37
A magnet 42 is fixed in the circulation hole 40 with an adhesive. A concave groove 46 is formed on the outer wall portion 45 of the transparent tube body 31.
Is processed, and the reed switch 48 is placed in the groove 46.
Are stored and fixed with resin 49. A bare lead wire 50 is led out from the reed switch 48, and the bare lead wire 5
0 and the coated lead wire 52 for external connection are soldered 54, and the easy terminal 55 is joined to the other end. Insulation coating tube 57 for coating the lead wire 52 for external connection
One end of the insulation-coated tube 57 is bonded and fixed to the outer wall 45 of the transparent tube body 31, and the other end is fixed to the external connection lead wire 52 and the adhesive 58.

[0004]

The conventional fluid optoscope has the following problems.
The float magnet may attract metal powder etc. in the fluid to narrow the flow passage, making it impossible to flow a predetermined amount in the pipe system, and the reed switch itself may fail early due to sparking etc. There is a risk of being connected.

The present invention has been proposed as a result of intensive studies to solve the above-mentioned problems, and a fluid such as water or oil is constantly introduced into the pipe system by partially modifying the structure of the fluid inspection device. It is intended to prevent a seizure of the bearing due to insufficient oil supply due to clogging of the oil supply pipe or the like, and an early failure due to a spark or the like when the reed switch is opened or closed.

[0006]

In order to achieve the above object, the present invention is characterized in that a cylindrical transparent tube main body and internal flow paths at both ends of this transparent tube main body, An inlet side joint provided with a spherical seat and an outlet side joint having a flow path inside and an inner cylinder part for guiding the spring formed at the tip end are connected, and a compression spring is connected to the inside of the transparent tube body. In a fluid inspector containing a metal sphere that has been pressed against a pipe, the outer wall of the tube body that corresponds to the position where the pushing force of the metal sphere due to the viscous resistance of the fluid at the time of fluid flow and the force of the compression spring pressed from above balance Forming a groove,
It is a fluid inspector that automatically detects the position of a metal sphere by mounting a proximity sensor in the groove.

[0007]

[Function] When the flow rate of the fluid is small, the metal sphere is pushed up while being in contact with the compression spring, and when the flow rate of the fluid reaches a predetermined amount, the metal sphere is pushed up within the range where the proximity sensor functions. , If a predetermined amount of fluid continues to flow, it holds the predetermined position. Also, when the flow rate of the fluid is large, it exceeds the range in which the proximity sensor works, and the flow rate naturally exceeds the predetermined amount, but the fluid inspection to obtain the predetermined flow rate by adjusting the compression spring etc. It can be a vessel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a fluid inspector according to the present invention, 2 is a cylindrical transparent tube main body made of acrylic resin, tempered glass or the like, and pipes are connected to both ends of the transparent tube main body 2. The inlet side pipe joint 3 and the outlet side pipe joint 4 are connected to each other. The inlet side pipe joint 3 is connected to the inlet side of the fluid, and has the fluid 1 inside.
1 has a flow path 5 and a spherical seat 7 of a metal spherical body 6 is provided at the tip. Further, the inlet side pipe joint 3 is integrally screwed and connected to a screw 8 provided inside the transparent pipe body 2.

On the other hand, the outlet side pipe joint 4 is connected to the outlet side of the fluid, has a flow passage 9 inside, and a small-diameter inner cylindrical portion 10 for guiding the spring 12 is formed at the tip. ing. Then, one end of a compression spring 12 having a predetermined diameter is movably inserted around the small-diameter inner cylindrical portion 10,
The length of the compression spring 12 is adjusted so that the other end of the compression spring 12 maintains the contact state with the metal sphere 6 even when the flow of the fluid 11 is stopped.
Further, the outlet side pipe joint 4 is, like the inlet side pipe joint, screwed and integrated with the screw portion 13 of the transparent pipe body 2.

A groove 17 is formed in the outer wall 16 of the transparent tube body 2, and a proximity sensor 18 is mounted in the groove.
The mounting position of the groove 17 is such that the metal sphere stops when the pushing force of the metal sphere due to the viscous resistance of the fluid flowing around the metal sphere 6 at the time of the flow of the fluid 11 and the force of the compression spring 12 pressing from above balance. That position is the position of the groove. Proximity sensor 18 at this stop position
Is attached to automatically detect whether or not the metal sphere is in a predetermined position, and determine whether or not the required amount of fluid is flowing.

Also, regarding the proximity sensor, the range in which the metal sphere can be detected is limited by the performance of the proximity sensor, and the position where the metal sphere stops and the detection range of the proximity sensor must be designed in detail. Then, by incorporating this improved fluid inspection device 1 into the path for supplying the lubricating oil 22 to the bearing bearing 20 and the like by the oil pump 21 as shown in FIG. 2, the conventional hydraulic switch and the fluid inspection device run out of oil. The hydraulic switch for the circuit that was prevented is no longer necessary.

[0012]

The fluid inspector of the present invention is constructed as described above, and a groove is formed in the outer wall portion of the transparent tube main body. By automatically detecting whether or not it is in a predetermined position, it is possible to always flow a predetermined amount of fluid into the pipe system, and even if there is a failure such as seizure of the bearing bearing caused by insufficient oil supply due to clogging of the oil supply pipe, etc. It can be detected by dropping, and the pressure drop due to pump failure can be detected as well. This can be expected to have the effect of facilitating failure detection during automatic operation of various bearing utilizing devices.

[Brief description of drawings]

FIG. 1 is a front sectional view of a fluid optoscope according to the present invention.

FIG. 2 is an explanatory diagram showing an example of an oil supply path in which a fluid inspection device according to the present invention is arranged.

FIG. 3 is a front cross-sectional view of a conventional fluid optoscope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid inspector 2 Transparent pipe main body 3 Entrance side pipe joint 4 Exit side pipe joint 5 Flow path 6 Metal sphere 7 Sphere seat 8 Screw part 9 Flow path 10 Small diameter inner cylinder part 11 Fluid 12 Compression spring 13 Screw part 16 Transparent pipe main body Outer wall 17 Groove 18 Proximity sensor

Claims (1)

[Claims] 1. A cylindrical transparent tube main body, an inlet side joint having a flow path inside at both ends of the transparent tube main body, and a spherical seat at the tip end, and a flow path inside the tip end. Connect the outlet side joint in which the inner cylinder part that guides the spring is formed,
Furthermore, in a fluid inspector containing a metal sphere pressed by a compression spring inside the transparent tube body, the force of pushing up the metal sphere due to the viscous resistance of the fluid at the time of fluid flow and the force of the compression spring pressed from above A fluid inspector characterized in that a concave groove is formed in an outer wall portion of a tube main body corresponding to a position where the two are balanced with each other, and a proximity sensor is attached to the concave groove to automatically detect the position of a metal sphere.