JPH0547840U - Oil leak detector - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide an oil leak detection device that reduces maintenance costs and simplifies replacement of the oil leak detection element. [Structure] Oil leakage detection element 4a, oil-permeable protection tube 3a provided around this oil leakage detection element 4a, and oil-permeable protection tube 3
An oil leak detection device 1a is constituted by a first connector 6a that supports a and is conductively connected to the oil leak detection element 4a, and a second connector 9a that is conductively connected to the first connector 6a in a detachable structure. [Effect] Maintenance costs can be reduced because parts are replaced.
Since the operator does not directly touch the oil leakage detection element, it can be easily replaced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil-leakage-point-monitoring type oil-leakage-detecting device, and more particularly to reducing maintenance costs and simplifying replacement of an oil-leakage detecting element.

[0002]

[Prior Art]

 Conventionally, as in Japanese Patent No. 1270958 (Japanese Patent Publication No. 59-47256), a conductive layer made of resin containing conductive material powder such as carbon powder is sandwiched between parallelly spaced electrode pairs. There was an oil sensing element. This oil leakage detection element can detect oil leakage by detecting this change because the electric resistance increases when oil is adsorbed on the conductor layer. Further, normally, a cable is electrically connected to the electrode pair of the oil leak detecting element, and an oil permeable protective tube is provided around the oil leak detecting element for use as an oil leak detecting device.

However, once oil is adsorbed in the oil leak detecting element of this structure, the same oil leak detecting element cannot be reused, so that the entire oil leak detecting device must be replaced each time. There was a problem that the maintenance cost would be very high.

Therefore, the present inventor has already disclosed, in Japanese Patent Application No. 2-405023, an oil leakage detection device 1b as shown in FIG. 4, which is a connector having socket terminals 7b and 7b ′. The electrodes 5b and 5b 'of the oil leak detecting element 4b are inserted into the oil leak detecting element 4b, and an oil-permeable protective tube 3b is provided around the oil leak detecting element 4b. In this oil leakage detection device 1b, instead of replacing the whole, only the used oil leakage detection element 4b is replaced with an unused oil leakage detection element to prepare for detection of the next oil leakage. Therefore, only partial replacement is required, and overall maintenance costs can be reduced.

[0005]

However, although the above-described oil leak detection device 1b saves maintenance and management costs, when replacing the oil leak detection element 4b, for example, the oil-permeable protective tube 3b or the connector 2b may be replaced. Workers are identified because knowledge on replacement work is required, such as completely removing the oil that has arrived, and making sure that unused oil leakage detection elements are not soaked with oil such as hand oil. Not general.

In view of the above problems, the present invention intends to provide an oil leakage detection device of these oil leakage point monitoring type, which reduces maintenance and management costs and can be easily replaced by anyone. There is something.

[0007]

[Means for Solving the Problems]

 The present invention has been made in order to achieve the above-mentioned object, and includes an oil leakage detection element, an oil-permeable protection tube provided around the oil leakage detection element, and a support for the oil-permeable protection tube and the oil leakage described above. An oil leak detection device is provided that includes a first connector that is conductively connected to the detection element and a second connector that is conductively connected to the first connector with a structure that is detachable.

[0008]

[Action]

 When using the present invention, if this oil leak detection device is installed in a place where there is a risk of oil leak as in the past, the oil leak will be absorbed by the oil leak detection element through the oil passage protection tube, Since the electrical resistance between the electrodes rises, oil leakage can be detected by detecting this change.

With respect to such a used oil leakage detection device, the second connector connected to the detection device and the cable is left, and only the entire oil leakage detection element and the oil-permeable protective tube connected to the first connector are left. Prepare to detect the next oil leak by replacing. As a result, the overall maintenance cost can be reduced.

Further, in the replacement work at this time, the oil leakage detection element is protected by the oil-permeable protective tube and does not come into contact with the outside, so that even an operator who has no particular knowledge of the sensor characteristics does not impair the sensor characteristics. It can be easily replaced.

[0011]

【Example】

 Hereinafter, although described with reference to the drawings, the present invention is not limited to this embodiment, and various modifications can be made within the technical idea of the present invention.

FIG. 1 is a sectional view of an oil leakage detection device according to an embodiment of the present invention, FIG. 2 is a sectional view of an embodiment using the oil leakage detection device shown in FIG. 1, and FIG. 3 is shown in FIG. It is sectional drawing of another embodiment using an oil leak detection apparatus.

First, the oil leak detection device 1a shown in FIG. 1 will be described. The electrode pair 5a, 5a 'of the oil leak detection element 4a is conductively connected to the socket terminals 7a, 7a' of the first connector 6a. Further, an oil-permeable protective tube 3a is provided around the oil leakage detection element 4a. The oil-permeable protective tube 3a has a shape that allows oil to pass through, for example, by providing a through hole as shown in the figure.

The second connector 9a having the plug terminals 8a and 8a 'has a structure attachable to and detachable from the first connector 6a. The other ends of the plug terminals 8a and 8a 'are conductively connected to a cable 10a following the detection device. These are used by installing the first connector 6a in the second connector 9a as an oil leak detection device 1a and installing it in a place where there is a risk of oil leak.

Further, it is efficient to use the oil leak receiver shown in FIG. 2 or FIG. 3, for example. Referring to FIG. 2, it is shown that the second connector 9a of the oil leakage detection device 1a is fixed to the side surface of the oil leakage reception device 11 in the shape of a saucer with screws or the like. When a certain amount of the generated oil leak is accumulated at the bottom of the oil receiver 11, the oil leak enters the oil-permeable protective tube 3a and is detected by the oil leak detecting element 4a.

Further, referring to FIG. 3, it is shown that the second connector 9a of the oil leak detection device 1a is used by being fixed to the oil leak receiving device 12 having a funnel-shaped upper part by screwing or the like. The oil leakage is dropped into this funnel-shaped portion, collected in the center of this portion, and enters the oil-permeable protective tube 3a to be detected by the oil leakage detection element 4a. Therefore, this can detect earlier than the oil leak receiving device 11 shown in FIG.

With regard to the used oil leakage detecting device 1a that has already been detected, the first connector 6a having the socket terminals 7a and 7a ′ is left while leaving the second connector 9a having the plug terminals 8a and 8a ′. Prepare for the next oil leak by replacing the entire part consisting of the oil leak detection element 4a and the oil-permeable protection tube 3a with an unused one.

It is economical because it only needs to be partially replaced in this way. Further, in this replacement work, the worker does not directly touch the oil leak detection element 4a, so that even a worker who does not have knowledge of the sensor characteristics can easily replace the oil leakage detection element 4a without impairing the sensor characteristics.

[0019]

[Effect of the device]

 As described above, the oil-leakage detecting element, the oil-permeable protective tube provided around the oil-leakage detecting element, and the first oil-permeable protective tube that supports the oil-permeable protective tube and is electrically connected to the oil-leak detecting element. Since the oil leak detection device is provided with the connector and the second connector electrically conductively connected to the first connector in a detachable structure, the second oil leak detection element is left and the second oil leak detection element including the used oil leak detection element is left. By replacing only one connector part, the overall maintenance cost can be reduced. In addition, the oil-permeable protective tube prevents the worker from directly touching the oil-leakage detection element, which makes it easy to replace the sensor without deteriorating the sensor characteristics. Have.

[Brief description of drawings]

FIG. 1 is a sectional view of an oil leak detection device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an embodiment using the oil leak detection device shown in FIG.

FIG. 3 is a sectional view of another embodiment using the oil leak detection device shown in FIG.

FIG. 4 is a sectional view of a conventional oil leak detection device.

[Explanation of symbols]

 1a, 1b Oil leak detector 2b Connector 3a, 3b Oil-permeable protective tube 4a, 4b Oil leak detecting element 5a, 5a ', 5b, 5b' Electrode 6a First connector 7a, 7a ', 7b, 7b' Socket terminal 8a, 8a 'Plug terminal 9a Second connector 10a, 10b Cable 11, 12 Oil leakage receiving device

Claims (1)

[Scope of utility model registration request] 1. An oil leakage detection element, an oil-permeable protective tube provided around the oil leakage detection element, and a first connector which supports the oil-permeable protection tube and is electrically conductively connected to the oil leakage detection element. An oil leakage detection device comprising: a second connector that is electrically connected to the first connector with a detachable structure.