JPH11326015A - Float type level gauge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mount a shaft to a protecting pipe and to certainly follow a float responding to the variation of a liquid surface by providing a guide member having the approximately same diameter as an inner diameter of the protecting pipe on a lower end of the shaft. SOLUTION: A shaft 11 is provided with a movable float 12 ascending and descending accompanying with a variation of a liquid surface, a connecting wire 14 to an instrument board is provided on an upper surface of an upper flange 13 of the shaft 11 and the shaft 11 is inserted into a protecting pipe 15. A guide member 16 constituted by three or four sheets of rib materials having the approximately same diameter as an inner diameter of the protecting pipe 15 is provided on a lower end of the shaft 11. Thereby, when the shaft 11 is mounted to the protecting pipe 15, the shaft 11 can be easily mounted in a standing state into the protecting pipe 15 without curving it and confirming a condition of the lower end of the shaft 11 and the float 12 certainly follows responding to the variation of the liquid surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a float type liquid level gauge for raising and lowering a float in accordance with a change in liquid level.

[0002]

2. Description of the Related Art As shown in FIG. 2, for example, a liquid level gauge used for a tank lorry has a float 1 which is movable on a shaft 1 as the liquid level fluctuates. Since it is not rigid and may be damaged by the swinging of the liquid during running, it is inserted into the protection pipe 3 to prevent the damage. Then, in order to ensure the uprightness of the shaft 1, a guide member 4 composed of three to four ribs is provided below the protective pipe 3, and the lower end of the shaft 1 is inserted into the center hole of the guide member 4. ing.

[0003]

However, in the above configuration, when the shaft is mounted on the protective pipe, the flange at the upper part of the shaft is in the way, so that the center hole of the guide member at the lower part of the protective pipe cannot be seen, and the shaft cannot be mounted. The float may be attached in a curved manner, and the float may not move at the curved portion.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a float type liquid level gauge in which a shaft can be easily attached to a protection pipe and the float reliably follows fluctuations in the liquid level.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a float type liquid level gauge in which a shaft having a movable float that moves up and down with a change in the liquid level is inserted into a protective pipe. Wherein a guide member having substantially the same diameter as the inner diameter of the protection pipe is provided at the lower end of the shaft.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail based on an embodiment shown in FIG. The float type liquid level gauge 10 has a shaft 11 movably provided with a flow 12 that moves up and down with a change in liquid level, and a connection line 14 to an instrument panel is provided on the upper surface of an upper flange 13 of the shaft 11. The shaft 11 is inserted into the protection pipe 15. At the lower end of the shaft 11, a guide member 1 composed of three to four rib members having substantially the same diameter as the inner diameter of the protection pipe 15 is provided.
6 are provided. Note that the guide member 16 may have a disk shape.

Thus, the shaft 11 is connected to the protection pipe 1
When attaching the shaft 11 to the protective pipe 15, the shaft 11 can be attached to the protection pipe 15 in an upright state without being curved without checking the state of the lower end of the shaft 11. Since the shaft 11 is not curved, the float 12 reliably follows the fluctuation of the liquid level.

Considering that the float type liquid level gauge 10 is used for a tank lorry, the guide member 16 is required.
Is preferably made of a synthetic resin, or the protective pipe 15 is preferably made of a synthetic resin.

[0009]

As described above, the float type liquid level gauge according to the present invention has a guide having substantially the same diameter as the inner diameter of the protection pipe at the lower end of the shaft provided so as to be able to move the float which moves up and down with the fluctuation of the liquid level. Since the member is provided, when attaching the shaft to the protective pipe, it is possible to install the shaft in the upright state without bending the shaft without checking the condition of the lower end of the shaft. In addition to the fact that the shaft is not curved, the float reliably follows the fluctuation of the liquid level.

[Brief description of the drawings]

FIG. 1 is a front view of a float type liquid level gauge showing an embodiment of the present invention.

FIG. 2 is a front view of a conventional float type liquid level gauge.

[Explanation of symbols]

10: float type liquid level gauge, 11: shaft, 12: float, 15: protective pipe, 16: guide member

Claims (1)

[Claims] In a float type liquid level meter having a float capable of moving a float that rises and falls with a change in the liquid level inserted into a protection pipe, the lower end of the shaft is substantially the same as the inner diameter of the protection pipe. A float-type liquid level gauge comprising a guide member having a diameter.