JPH0140028Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water column gauge used for inspecting gas leakage and gas pressure.

Conventionally, this type of water column gauge is carried by an inspector to a home or other place to be inspected and connected to pipes, appliances, etc. to be inspected to inspect gas leaks and gas pressure. Therefore, it is required to be lightweight and easy to carry, not to be damaged, and to be placed near the equipment so that it can be easily seen and inspected.

Furthermore, there is a need for an inexpensive water column gauge that meets these requirements.

Therefore, the object of the present invention is to propose a water column gauge that can satisfy the above requirements.

Next, an embodiment of the present invention shown in the drawings will be described.

A substrate 1 is made of a synthetic resin material, and both sides thereof are concave surfaces (parts of cylindrical surfaces) that fit the outer circumference of the U-shaped tube 2. Reference numeral 2 denotes a U-shaped tube made of synthetic resin, the left and right tubes of which are formed along both sides of the substrate 1, into which an appropriate amount of water is poured. 3, 3 is a spacing plate, and holes 3 on the left and right sides of which the left and right tubes of the U-shaped tube 2 are inserted;
a, 3a are formed, and these holes 3a, 3a are formed.
It is inserted into the U-shaped tube 2 through the screws 4 at the upper and lower ends of the substrate 1, and is fixed to the substrate 1 with screws 4. Reference numeral 5 denotes a retaining ring, which is inserted and fixed to the outside of the left and right tubes so as to be positioned on the upper spacing plate 3, thereby fixing the base plate 1 and the spacing plate 3 to the U-shaped tube 2. There is. A scale 6 is placed on the surface of the substrate 1.
However, two guide pins 7, 7 are provided in the upper and lower parts of the base plate 1, and vertical guide holes 8, 8 are formed in the scale 6, into which the guide pins 7, 7 fit. It is formed to be movable in the vertical direction. Further, the guide pins 7, 7 have their rear ends protruding to the back side of the board 1, and a leaf spring 9 is provided on the protruding portion to urge the guide pins backward, thereby causing the scale 6 to have some friction. The movement position of the scale 6 is maintained by moving the scale 6 along with the movement of the scale 6. 10 is a knob for moving the scale 6, which is fixed to the scale 6. The thickness d of the substrate 1 is smaller than the width D in the front-rear direction of the spacing plate 3, and the spacing plate 3 also serves as a stopper so that the upper and lower ends of the scale 6 come into contact with it. . Permanent magnets 11 are fixed to the back surface of the substrate 1, located above and below it. A slip prevention member 12 made of a rubber material is fitted and fixed to the lower end of the U-shaped tube 2, and a sawtooth-shaped groove is formed on the lower surface of the member 12 to increase the slip prevention effect. There is. 13
is a hanging metal fitting, which consists of a chain 13a whose both ends are fixed to the screws 4, 4 of the upper spacing plate 3, and a hook-shaped hook metal fitting 13b provided at the center of the upper part of the chain 13a. A connecting portion 2a having an outer diameter and a length to which one end of the connecting hose 14 can be press-fitted is formed at the upper end of one tube (the right tube in FIG. 1) of the U-shaped tube 2, and the other tube ( 1st
A female thread 2b is formed on the inner periphery of the upper end of the tube on the left side in the figure by shortening its protruding length. 15 is a stopper for opening and closing the other pipe, and has a threaded rod 15a screwed into the female thread 2b at the lower part;
The upper portion has a non-porous hose holding portion 15b having an outer diameter to which the other end of the connecting hose 14 can be press-fitted. Further, a notch 15c is formed on one side of the threaded rod 15a over its entire vertical length. 16 is a gasket fixed to the lower surface of the hose holding portion 15b.

As described above, when using the U-shaped tube 2, fill the U-shaped tube 2 with water up to the vicinity of its center and tighten the stopper 15. By tightening the stopper 15, the water inside does not easily flow out even during transportation. At the time of inspection, the connection hose 1 connected to the connection part 2a
Connect the other end of 4 to the gas appliance etc. 17 to be inspected,
The stopper 15 is rotated to loosen it and the gas from the instrument etc. is sent into the U-shaped tube 2. By loosening the plug 15, the U-shaped tube 2
The other mouth of the tank is connected to the atmosphere, so the water level fluctuates depending on the gas pressure. This is read on a scale 6 as is well known, and gas leakage and gas pressure are checked. At the end of the test, the plug 15 is tightened, the other end of the connecting hose 14 is press-fitted into the hose holding portion 15b of the plug 15, and the connecting hose 14 is prepared in the water column gauge.

With the above structure, the water column gauge of the present invention can easily determine the positional relationship when assembling the substrate 1, the U-shaped tube 2, and the spacing plates 3, 3 during manufacture, and the number of assembly steps can be reduced. Also, fixing screw 4,
Since the chains are stopped at the same time at 4, an inexpensive gauge can be realized without increasing the number of parts. Furthermore, since the substrate 1 and the U-shaped tube 2 are made of synthetic resin, it is lightweight for carrying and is less likely to be damaged by hitting other objects. Moreover, hanging metal fittings 13 and permanent magnets 11
By providing the water column gauge, the water column gauge can be hung or held by suction on equipment or other nearby members during inspection, and the water column gauge can be installed so that it is easy to see and inspect. In addition, since the hanging metal fittings are composed of a chain 13a and a hook metal fitting 13b, the hanging metal fittings or the hook metal fittings can be used selectively, so that not only the free seat when using it is high. The hook fitting is placed in the center of the upper part of the chain, making it easy to use due to the flexibility of the chain. Furthermore, since the anti-slip member 12 made of a rubber material or the like having a groove is provided at the lower end of the U-shaped tube 2, when the water column gauge is propped up for inspection, it is unlikely to trip or fall. Additionally, when using a water column gauge on a stand, workers often touch the gauge and cause it to fall from the stand.
In such a case, since the anti-slip member 12 hits the ground first, damage can be prevented and it is practically effective as a water column gauge.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view, Fig. 2 is a rear view, Fig. 3 is a plan view, and Fig. 4 is a plan view.
The figure is a bottom view, Figures 5, 6, and 7 are sectional views taken along lines A-A, B-B, and C-C in Figure 1, and Figure 8 is a front view of the stopper. Figure 9 is a bottom view of the stopper.
FIG. 10 is a schematic front view showing the connection state of the connection hose. 1... Board, 2... U-shaped tube, 3... Spacing plate, 4... Screw, 5... Stop ring, 6... Scale,
11...Permanent magnet, 12...Slip prevention member, 13
...Hanging bracket, 13a... Chain, 13b...
...Futsuku metal fittings.

Claims (1)

[Scope of utility model registration request] A substrate 1 made of a synthetic resin material with both sides formed into concave surfaces that are part of a cylindrical surface, and a U-shaped tube 2 made of a synthetic resin tube with left and right tubes along both sides of the substrate 1. , spacer plates 3, 3 having holes 3a, 3a through which the left and right tubes of the U-shaped tube 2 are inserted, and spacer plates 3, 3 disposed at the upper and lower ends of the substrate 1 into which the U-shaped tube 2 is inserted; A scale 6 is provided on the surface of the substrate 1 so as to be slidable up and down, and both ends are attached to the upper spacing plate 3.
A hanging fitting 13 consisting of a hook 13a fixed to the screws 4, 4, a hook-shaped hook fitting 13b provided at the center of the upper part of the hanging fitting 13a, a permanent magnet 11 fixed to the back surface of the board 1, and a permanent magnet 11 fixed to the bottom surface thereof. A water column gauge characterized in that a slip prevention member 12 formed with a sawtooth-shaped groove and made of a rubber material or the like is fitted and fixed to the lower end of the U-shaped tube 2.