JP2001091339A - Mounting structure for remaining-amount detecting sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure for a remaining-amount detecting sensor, which can deal with various kerosene tanks. SOLUTION: The structure is provided with a remaining-amount detecting sensor which detects the remaining amount of a liquid inside a liquid tank 2, a sensor mounting member 1 which is attached to an opening part 21 formed on the surface of the liquid tank 2, and a drum mouth part 10 which is formed at the sensor mounting member 1 in order to attach the remaining-amount detecting sensor. A wing part 11 which is inserted into the opening part 21 in order to prevent the sensor mounting member 1 from coming off from the opening part 21 is installed at the sensor mounting member 1. The wing part 11 is formed of a blank which can be cut by a tool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a remaining amount detecting sensor to an opening formed on an upper surface of a liquid tank.

[0002]

2. Description of the Related Art Kerosene tanks (corresponding to liquid tanks)
A remaining amount detection sensor (hereinafter, sometimes simply referred to as a sensor) for detecting the remaining amount of kerosene put in the inside.
May be attached. The main purpose of installing this sensor is to monitor the remaining amount of kerosene with the sensor and, when the remaining amount falls below a predetermined value, display a warning or notify the seller via a telephone line. In order to attach such a sensor, it is necessary to attach a sensor attachment member for attaching the sensor to an opening previously formed on the upper surface of the kerosene tank or an opening newly formed on the upper surface of the kerosene tank.

[0003]

However, there are various types of kerosene tanks, and it is not preferable to change the mounting structure of the sensor for each type of kerosene tank in terms of parts cost and management cost. Therefore, an object of the present invention is to provide a mounting structure of a remaining amount detection sensor capable of supporting various types of kerosene tanks (liquid tanks).

[0004]

In order to achieve the above object, a mounting structure of a remaining amount detecting sensor according to the present invention comprises a remaining amount detecting sensor for detecting a remaining amount of liquid in a liquid tank, A sensor mounting member mounted on the formed opening; and a mounting screw portion formed on the sensor mounting member for mounting the remaining amount detection sensor, to prevent the sensor mounting member from falling out of the opening. For this purpose, a wing inserted into the opening is provided on the sensor mounting member, and the wing is formed of a material that can be cut by a tool.

[0005] According to this configuration, the sensor mounting member for mounting the remaining amount detecting sensor is mounted on the opening formed on the upper surface of the liquid tank. The sensor mounting member is provided with a wing portion, and by inserting the wing portion through the opening, the sensor mounting member can be prevented from dropping out of the opening (upward dropping). Further, a mounting screw portion is formed on the sensor mounting member, and a remaining amount detection sensor is mounted on the mounting screw portion. Also, the fixing screw portion can be used for fixing the sensor mounting member to the opening. For example, a nut is screwed into a male screw portion formed in the mounting screw portion, and the sensor mounting member is mounted and fixed on the upper surface of the liquid tank by sandwiching a top plate on the upper surface of the liquid tank between the nut and the wing portion. be able to.

Further, the wing is formed of a material that can be cut by a tool. In order to mount the sensor mounting member, the wing is inserted through the opening. The size of the opening varies depending on the type of the liquid tank. Therefore, by allowing the wings to be cut, it is possible to cope with openings of various sizes. The portion to be cut may be appropriately changed according to the size of the opening. As described above, it is possible to provide a mounting structure of the remaining amount detection sensor capable of supporting various liquid tanks.

[0007] In a preferred embodiment of the present invention, the mounting screw portion is formed as a drum opening. The dimensions of the drum can are defined by JIS standards, and the versatility can be increased by forming such a drum can. For example, if the liquid tank has a drum opening, the remaining amount detection sensor can be attached as it is, and if the liquid tank has no drum opening, the remaining amount detection sensor according to the present invention can be attached. A structure may be used.

As a preferred embodiment of the present invention, there is provided a sensor mounting member in which a hole for passing a string-like member is formed. When attaching the sensor attachment member to the opening of the liquid tank, there is a risk that the sensor attachment member may fall into the liquid tank from the opening by mistake. Therefore, a hole for passing the string-shaped member through the sensor mounting member is formed, and the mounting work is performed with the string passed through the hole, so that the sensor mounting member is accidentally dropped into the liquid tank. The risk of accidents can be avoided.

Another preferred embodiment of the present invention is one in which the sensor mounting member and the wing are integrally formed. With this configuration, it is possible to contribute to a reduction in component costs.

[0010] In still another preferred embodiment of the present invention,
One in which the mounting height of the remaining amount detection sensor is adjustable. According to this configuration, the remaining amount detection position can be changed according to the size of the liquid tank, a user's request, and the like, so that commercial value can be increased.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a mounting structure of a remaining amount detecting sensor according to the present invention will be described with reference to the drawings. FIG. 1 shows an opening 21 formed in the top plate 20 of the kerosene tank 2.
2 shows a state in which the sensor mounting member 1 is fixed to the sensor mounting member 1 and the sensor unit S is mounted on the central portion of the sensor mounting member 1. Kerosene is stored in the kerosene tank 2, and the sensor unit S is provided to detect the remaining amount of kerosene. That is, when the liquid level of the kerosene gradually decreases and drops below a certain level, this is detected, and the fact that the remaining amount of the kerosene is low is notified to the outside. Alternatively, it is detected that the remaining amount of kerosene is low, and the seller is automatically contacted via a communication line or the like to prompt the supply of kerosene.

FIGS. 2A and 2B are views showing the shape of the sensor mounting member 1, wherein FIG. 2A is a plan view and FIG. 2B is a side view. The sensor mounting member 1 is composed of a single component,
A drum can opening 10 (corresponding to a mounting screw);
The vehicle includes a pair of wings 11 and a connecting part 12 for connecting the drum can 10 and the wings 11. Drum mouth 10
Is a female screw 10a having the same shape as the mouth of the drum,
An external thread 10b is formed. The pair of wings 11
The drum can 10 is provided symmetrically at two locations so as to extend in the radial direction when viewed in the axial direction of the can opening 10. The wings 11
Upper surface portion 11a abutting on the back surface of top plate 20 of kerosene tank 2
And a rib 11b. A hole 13 is formed in the lower portion of the connecting portion 12, and the sensor mounting member 1 is mounted on the kerosene tank 2 by passing a string-like member (a member having the same function as a string and a string) through the hole 13. In this case, the sensor mounting member 1 can be prevented from falling into the kerosene tank 2.

<Attachment of Sensor Attachment Member> The attachment procedure of the sensor attachment member 1 will be described with reference to FIGS. With the string H passed through the hole 13 as shown in FIG.
One wing 11 of the pair of wings 11 is inserted into an opening 21 formed in the top plate 20. After one wing 11 is inserted all the way, the other wing 11 is also inserted into the opening 21. While holding the sensor mounting member 1 in a horizontal state, the ring-shaped waterproof rubber 3 and the disk 18 are inserted from above the drum can 10. Next, the lock nut 4 is screwed into the male screw 10b of the drum can opening 10. By screwing the lock nut 4, the sensor mounting member 1 is fixed to the opening 21 such that the top plate 20 is sandwiched between the upper surface 11 a of the wing 11, the waterproof rubber 3 and the disk 18. Note that the string H is removed before the screwing by the lock nut 4 is performed. Finally, the gap between the waterproof rubber 3 and the lock nut 4 and the upper portion of the lock nut 4 are sealed with the silicone rubber 5.

<Structure of Sensor Unit> Referring to FIG.
The configuration of the sensor unit S will be described. The sensor unit S includes an aluminum pipe 6, a relay pipe 7, a sensor body 8 provided below the relay pipe 7, and a fixture 9.

The aluminum pipe 6 has the shape of a hollow pipe as shown in FIG. 5 (a), and has a notch 6a at one end and a hole for fixing the relay pipe 7 at the other end. 6
b is formed. The relay pipe 7 is preferably formed of a synthetic resin, and has a large number of adjustment holes 7a for adjusting the mounting height of the sensor. A well-known liquid level sensor (corresponding to a remaining amount detection sensor) is provided in the sensor main body 8. In this liquid level sensor, a permanent magnet is mounted on a float that moves in conjunction with the liquid level, and a reed switch is activated when a predetermined liquid level is reached. For example,
The liquid level sensor disclosed in Japanese Patent No. 2736037 owned by the present applicant can be used.

The connection between the aluminum pipe 6 and the relay pipe 7 is performed by two screws 14 (see FIGS. 5B and 5C). By selecting the adjustment hole 7a for fastening with the screw 14, the height of the liquid level sensor (sensor body 8) can be set as desired.

The aluminum pipe 6 is attached to the fixing metal 9 by inserting the aluminum pipe 6 into a through hole 9a formed in the center of the fixing metal 9 and tightening the screw 15 from the retaining seat 9b. The tip enters the notch 6a, whereby the mounting of the aluminum pipe 6 is completed. Code line C extending from the sensor body 8
Is drawn out through the slit 9c.
Further, the fixing bracket 9 includes a main body 9d and an upper screw 9e.
And a lower screw portion 9f, and a slit formed between the main body portion 9d and the lower screw portion 9f and a slit formed between the main body portion 9d and the upper screw portion 9e are respectively provided with rubber. The packing 16 (O-ring) is attached (FIG. 5C).

<Attaching the sensor unit S>
The attachment of the sensor unit S to the sensor attachment member 1 will be described with reference to FIG. Lower screw part 9 of fixing bracket 9
f is screwed into the female screw 10a of the sensor mounting member 1.
Finally, the tank lid 17 may be screwed into the upper screw portion 9e (see FIG. 1).

<Correspondence to Various Kerosene Tanks> There are various types of kerosene tanks 2, and there are various sizes of the opening 21. When the wing 11 of the sensor mounting member 1 cannot be inserted because the size of the opening 21 is small, a part of the wing 11 (shown by hatching) as shown in FIG.
May be cut by a tool such as a nipper. In some cases, both wings 11 may be cut. The wings 11 are preferably formed of a synthetic resin or the like that can be easily cut by a tool.

<Another Embodiment> The present invention can be applied to an oil tank other than a kerosene tank as a liquid tank.

[Brief description of the drawings]

FIG. 1 is a diagram showing an attachment structure of a remaining amount detection sensor according to the present embodiment.

FIG. 2 is a diagram showing a shape of a sensor mounting member.

FIG. 3 is a diagram illustrating a procedure for mounting a sensor mounting member.

FIG. 4 is a diagram showing the completion of mounting the sensor mounting member.

FIG. 5 is a diagram showing a configuration of a sensor unit S.

FIG. 6 is a diagram showing attachment of a sensor unit S to a sensor attachment member.

FIG. 7 is a diagram illustrating correspondence to various kerosene tanks.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sensor mounting member 2 Kerosene tank 10 Drum can mouth part 11 Wing part 21 Opening S Sensor unit H String

Claims (5)

[Claims] 1. A sensor for detecting a remaining amount of liquid in a liquid tank, a sensor attachment member attached to an opening formed on an upper surface of the liquid tank, and the sensor for attaching the remaining amount detection sensor. A mounting screw portion formed on the mounting member, and a wing inserted into the opening to prevent the sensor mounting member from falling out of the opening is provided on the sensor mounting member; An attachment structure for a remaining amount detection sensor, wherein the wing is formed of a material that can be cut by a tool. 2. The mounting structure according to claim 1, wherein the mounting screw portion is formed as a drum can opening. 3. The sensor mounting member according to claim 1, wherein a hole through which the string member is passed is formed in the sensor mounting member.
Or the mounting structure of the remaining amount detection sensor according to 2. 4. The mounting structure for a remaining amount detection sensor according to claim 3, wherein the sensor mounting member and the wing are integrally formed. 5. The apparatus according to claim 1, wherein a mounting height of said remaining amount detecting sensor is adjustable.
The mounting structure of the remaining amount detection sensor according to any one of the above.