JPH0594721U - Liquid level indicator - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the insertability of the measuring unit. [Structure] A guide portion 8 for reducing friction with the inner wall of the insertion hole 9 at the tip of the measuring portion 3 is provided. The guide portion 8 preferably has an 81 structure with a thin wall and a rounded tip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid level gauge used, for example, in an insertion hole in which the shape of the insertion hole into which the measuring unit is inserted is deformed in a secondary or three-dimensional manner.

[0002]

[Prior Art]

 A conventional level gauge of this type is shown in FIG. This level gauge is an oil level gauge for detecting the amount of oil used in engines of automobiles and A / T (automatic transmission). That is, in this oil level gauge, the measuring unit 101 is provided at one end of the core metal 100 as the gauge body. A seal lip 102 that seals the open end of the insertion hole is provided on the other end side of the core metal 100.

[0003]

[Problems to be solved by the device]

 However, in the case of the above-mentioned conventional technique, the core metal 100 of the oil level gauge is not bent in the pipe 9 shown in FIG. 4 as an insertion hole bent in the second and third dimensions, and the tip of the measuring unit 101 is the pipe 9 There is a drawback that it cannot be inserted because it is caught on the inner wall of the.

Further, as shown in FIG. 6, the portion of the core metal 100 between the measuring portion 101 and the seal lip 102 of the oil level gauge shown in FIG. 5 is a wire 103, and both ends thereof are the measuring portion 101 and the seal lip 102. There is an oil level gauge 200 with a crimped structure. In this oil level gauge 200, the tip measuring portion 101 of the oil level gauge 200 is inserted into the pipe 9, but the number of assembling steps is large, and the cost of the wire 103 is high. There is.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a liquid level gauge capable of improving the insertability of a measuring unit.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, a measuring unit is provided at one end of a long gauge main body, and the measuring unit is inserted into an insertion hole provided in the tank and attached to the liquid in the tank. In a liquid level gauge that measures the liquid level by the wet position of the measuring part, a guide part for reducing friction with the inner wall is provided at a portion of the tip of the measuring part that comes into contact with the inner wall of the insertion hole. To do.

The guide portion is preferably thin and has a rounded tip.

[0008]

[Action]

 In the liquid level gauge with the above-mentioned configuration, the measuring portion is provided on the inner wall of the insertion hole by providing the guide portion for reducing the friction with the inner wall of the tip of the measuring portion in contact with the inner wall of the insertion hole. It will not get caught.

Further, since the guide portion has a thin wall and a rounded tip, the guide portion can be easily bent, so that even if the shape of the insertion hole is a secondary or three-dimensionally deformed insertion hole, the guide portion has the same shape. Since the measurement part is guided along, the liquid in the tank can be reached and the liquid level can be measured.

[0010]

【Example】

 The present invention will be described below based on the illustrated embodiment. FIG. 1 shows a liquid level gauge according to an embodiment of the present invention. As shown in the prior art, this liquid level gauge is used to detect an oil amount used for an engine of an automobile or an A / T (automatic transmission). It is an oil level gauge for. That is, the oil level gauge 1 is roughly composed of a long gauge main body 2, a measuring section 3 provided at one end of the gauge main body 2, and a seal lip 4 provided at the other end of the gauge main body 2. ing.

The gauge main body 2 is composed of a core metal 5 having a seal lip 4 and a plate-shaped gauge plate 6 having the measuring portion 3, and the end of the core metal 5 into the insertion hole and the gauge. The end of the plate 6 on the opposite side of the measuring unit 3 is connected and fixed by a rivet 7. The end of the core metal 5 that is not connected and fixed to the gauge plate 6 is bent into a circular shape to form a handle.

On the other hand, the tip end portion of the gauge plate 6 constitutes the measurement portion 3, and the tip portion of the measurement portion 3 which comes into contact with the inner wall of the insertion hole reduces friction with the inner wall of the insertion hole. The guide part 8 is integrally provided. That is, this guide portion 8 is provided at the tip of the gauge plate 6, and the thickness of the tip of the gauge plate 6 is thin and tapered, and the tip end is bent with a curved radius 81 to be rounded. The structure for rounding may be a rounded structure instead of a round structure.

The measuring section 3 provided with the guide section 8 at the tip of the gauge plate 6 is provided in a tank (not shown), and a three-dimensionally bent pipe 9 is formed as an insertion hole as shown in FIG. The guide wall 8 guides and inserts the inner wall, soaks it in the oil in the tank, and the open end of the pipe 9 is fitted and fixed by the seal lip 4 provided on the core metal 5 to seal the oil. And the oil amount is detected by the wet position of the measuring unit 3.

In the liquid level gauge having the above-mentioned configuration, even if the pipe 9 has a three-dimensionally bent insertion hole, the guide portion 8 provided at the tip of the measuring portion 3 is thin. Therefore, as shown in FIG. 2A, the bending is easier than that of the measuring unit 101 of the prior art which is not thin in FIG. 2B, and the curvature R2 is smaller than the conventional curvature R1. Since it can be easily bent along the shape of the hole, the measuring unit 3 can be inserted until the liquid in the tank is reached.

Further, since a bending radius 81 for reducing friction with the inner wall is provided at the tip of the guide portion 8, as shown in FIG. 3A, the bending radius 81 of FIG. 3B is provided. It is less likely to get caught on the inner wall of the pipe 9 as compared with the measuring unit 101 of the related art in which is not provided.

From the above, the insertability of the measuring unit 3 can be improved.

Further, since the guide portion 8 can be formed only by thinning the plate thickness at the tip of the gauge plate 6, it is not necessary to use the expensive wire 103 as shown in the prior art of FIG. Since the number of assembling steps such as crimping both ends of 103 is not great, the cost can be reduced.

In the above embodiment, the oil level gauge for automobiles was used as an example of the liquid level gauge, but the liquid level gauge is not limited to the oil level gauge, and other liquid level in the tank of various mechanical devices may be used. It may be a level gauge for measurement, and the liquid may be not only oil but other liquids.

[0019]

[Effect of the device]

 The present invention has the above-described structure and operation, and since the guide portion for reducing friction with the inner wall of the insertion hole at the tip of the measurement portion is provided, the measurement portion is provided on the inner wall of the insertion hole. Is no longer caught. Therefore, the insertability of the measuring unit can be improved.

Further, since the guide portion has a thin wall and a rounded tip, it is easy to bend, so even if the shape of the insertion hole is a secondary or three-dimensionally deformed insertion hole, the guide portion has the same shape. Since the measuring part is guided along, the liquid in the tank can be reached and the liquid level can be measured.

[Brief description of drawings]

FIG. 1 (a) is a perspective view of a liquid level gauge according to an embodiment of the present invention, and FIG. 1 (b) is an enlarged perspective view of a portion A of FIG. 1 (a).

2 (a) is a side view of a main part of a measuring unit of the liquid level gauge of FIG. 1, and FIG. 2 (b) is a side view of a main part of the measuring unit of a conventional liquid level meter.

3 (a) is a longitudinal sectional view of a main part showing a state in which the measuring unit of the liquid level gauge of FIG. 1 is inserted into the pipe shown in FIG. 4, and FIG. 3 (b) is a conventional sectional view. FIG. 5 is a longitudinal sectional view of essential parts showing a state in which the measuring unit of the liquid level gauge is inserted into the pipe shown in FIG. 4.

FIG. 4 is a perspective view of a three-dimensionally bent pipe.

FIG. 5 is a perspective view of a conventional liquid level gauge.

FIG. 6 is a perspective view of another conventional liquid level gauge.

[Explanation of symbols]

 1 Oil level gauge (liquid level gauge) 2 Gauge body 3 Measuring part 4 Seal lip 5 Core bar 6 Gauge plate 7 Rivets 8 Guide part 81 Bending radius 9 Pipe

Claims (2)

[Scope of utility model registration request] 1. A measuring unit is provided at one end of a long gauge body, and the measuring unit is inserted into an insertion hole provided in a tank and attached to the liquid in the tank, and the liquid level is measured by the wet position of the measuring unit. In the liquid level meter, a guide part for reducing friction with the inner wall of the insertion hole at the tip of the measuring part is provided at a portion in contact with the inner wall. 2. The liquid level gauge according to claim 1, wherein the guide portion has a thin wall and a rounded tip.