JP4347861B2 - Protective cover for fuel oil tank - Google Patents

Description

  The present invention relates to a protective cover for theft or the like for extracting oil from a fuel oil tank installed outdoors in a fuel oil (mainly white kerosene) tank such as a fuel oil stove or a heating / hot water boiler used in cold regions.

  For fuel oil tanks installed outdoors, an oil feed port with a fuel filter, drain plug and outlet is provided on the bottom of the tank, and an oil feed pipe connected to the oil feed port passes under the ground for indoor fuel oil stoves and heating. Connected to the boiler. Further, an oil amount gauge for displaying the oil amount on the upper surface of the tank, an oil supply lid with an openable / closable cover for supplying oil into the tank, and an air vent for introducing air into the tank are provided.

  In such fuel oil tanks installed outdoors, there are cases of opening a small outlet at the night to drain the oil, dangerous cases of spilling the oil by cutting the oil supply pipe, and igniting the spilled oil. ing.

  In view of this, there has been known one that covers only the oil feeding port on the lower surface of the tank and the oil feeding pipe connected to the tank so as to deal with the danger related to the oil feeding port.

  For example, as shown in Japanese Utility Model Registration No. 3115857, a mounting bracket that is provided with a protective cover between the lower surface of the tank and the ground, accommodates the oil feeding port and the oil feeding pipe connected thereto, and is fixed to the ear portion on the lower surface of the tank. The rear upper protective cover is fixed to the mounting bracket, the front upper protective cover is fixed to the rear upper protective cover, and the lower front protective cover is fixed to the lower side of the front upper protective cover so that the vertical position can be adjusted. A rear lower protective cover is fixed below the protective cover so that the vertical position can be adjusted.

In addition, there is a risk of a theft in which the oil filler lid is opened at night to drain the oil, or foreign matter is mixed in from the oil filler and the combustion equipment may break down.

  In view of this, there has been known one that copes with the danger associated with the fuel filler opening by preventing the filler lid from being turned.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 2004-284644, a non-rotating metal fitting that engages with the periphery of the oil filler cap is provided, and an accessory other than the oil filler nipple on the upper surface of the tank is engaged with the anti-lock metal fitting with a lock. The anti-rotation bracket and lock have a tensioned length so that the oil filler lid can only rotate less than a predetermined angle, and the lock can be unlocked and the anti-rotation bracket can be detached from accessories other than the oil filler nipple on the upper surface of the tank. It is what.

  In addition, there is also known one that covers the oil filler cap and the oil amount gauge to deal with the dangers related to the oil filler cap and the oil amount gauge.

  For example, as shown in Utility Model Registration No. 3119996, a box-type pedestal for covering an oil filler cap and an oil amount gauge is fixed, and an anti-theft cover that can be opened and closed and locked is provided on the box-type pedestal. is there. The box-type pedestal is fixed by tightening the upper center projection plate of the tank with bolts. In this device, it is shown that when the oil level gauge is covered and locked with an anti-theft cover, the remaining amount cannot be seen, thereby preventing theft, freezing of the filler opening, and damage to the oil level gauge.

  Also known are those that deal with the dangers associated with oil gauges, filler caps and air vents.

  This is based on the proposal of the present applicant. As shown in Japanese Patent Application No. 2005-351548, an oil supply cover that covers the oil supply cover and is placed on the upper surface of the tank, and a display portion of the oil amount gauge protrudes upward from the oil supply cover. An air vent hole that projects the oil gauge hole and the air vent upward, covers the air vent cover that covers the side surface of the air vent, which is an inverted “J” -shaped tube, and the air vent cover. A lock fitting hole is provided on the side surface of the air vent cover located immediately below the uppermost end of the inner radius of the vent pipe, and a lock fitting is provided below the air vent pipe through the lock hole.

According to the present invention, the oil base cover is covered and the oil base cover is covered with the oil base cover by providing an oil amount gauge hole that protrudes the display part of the oil amount gauge upward. It cannot be removed. In addition, an engaging part is provided at an upper position at a predetermined distance from the air vent hole of the filler opening cover, and the air vent cover located on the filler opening cover is engaged with the engaging part when the air vent is turned. Therefore, it cannot be removed by turning the air vent.
Utility Model Registration No. 3115857 JP 2004-284644 A Utility Model Registration No. 3119996 Japanese Patent Application No. 2005-351548

  As shown in the above Japanese Patent Application Laid-Open No. 2004-284644, in which the oil filler lid cannot be turned, the recent oil filler lid is made of synthetic resin, so the oil filler lid is destroyed with a hammer or the like to steal. Can not cope.

  Further, since the air vent is fastened to the tank by a screw on the outer periphery of the pipe, it can be removed if a malicious person turns with a considerable force, and an opening is formed in the tank. Since the oil amount gauge is fixed to the tank by three push screws provided on the display base, it can be removed if a malicious person loosens the push screw by turning the screw, and an opening is formed in the tank.

  Moreover, the thing shown in the utility model registration No. 31999996 which covers the oil supply lid and the oil amount gauge cannot cope with the danger related to air bleeding. Furthermore, the box-type pedestal is fastened with a bolt at the center projection plate at the upper part of the tank, and is fixed with only one side.

  In addition, in the case of dealing with the danger related to the oil gauge, the filler cap and the air vent shown in Japanese Patent Application No. 2005-351548, when attaching the filler port cover, the filler port cover is turned over to the air vent hole. Inserting from the end of the air vent tube and passing the inverted “J” shaped tube, the oil filler cover is inverted, and the mounting method was not easily understood.

  Furthermore, at each refueling, the lock is unlocked and the lock fitting is removed, the air vent cover is pulled upward, the oil filler cover is lifted up, and the oil filler lid is turned off to remove the lock fitting and the air vent cover. There was annoying to remove.

  Furthermore, because the oil gauge display is made of transparent synthetic resin, the oil gauge display that protrudes upward from the oil gauge hole in the filler cover may be damaged by snowfall from the roof or by a malicious person. there were.

  Therefore, the present invention can cope with the dangers related to the oil gauge on the upper surface of the tank, the filler cap and the air vent, reliably and easily installed, eliminates the hassle of every oiling, and damages the oil gauge. An object of the present invention is to provide a protective cover for a fuel oil tank that can be prevented.

  The protective cover for the fuel oil tank according to the first aspect of the present invention is a fuel oil tank provided with an oil amount gauge 3, an oil filler cap 4 and an air vent 5 on the upper surface of the tank 1 for storing fuel oil. A protective cover 10 is provided to protect the fuel filler lid 4 and the air vent 5. The protective cover 10 is perpendicular to the oil filler cover 11 placed on the upper surface of the tank 1 and the air vent 5, which is an inverted “J” -shaped tube. An air vent cover 13 that covers the base 5a is provided, and an oil level gauge hole 11a that projects the display portion 3a of the oil level gauge 3 upward on the oil port cover 11 and an air vent hole 11b that projects the air vent 5 upward and oil supply An oil filler opening 11c for exposing the palate 4 is provided, and the oil filler cover 11 is provided with an oil cover opening lid 12 that can be opened and closed and locked, and most of the upper end portion of the air vent cover 13 is air. Inner areal 5b The lower end of the air vent cover 13 is located immediately below and is placed on or fixed to the fuel filler cover 11.

  The protective cover for the fuel oil tank according to the second aspect of the present invention is provided with a detent protrusion 14a positioned above the inner radius 5b of the pipe of the air vent 5 at a part of the upper end of the air vent cover 13, and the air vent cover 13 Can be divided into two on the vertical plane, and the lower end of the air vent cover 13 is screwed to the oil port cover 11 at a position covered by the oil port opening lid 12, and the air vent hole 11b and the oil port opening 11c of the oil port cover 11 are secured. The oil supply opening 11C is sized to allow the air vent 5 fixed to the tank 1 to pass therethrough.

  The protective cover of the fuel oil tank according to the invention of claim 3 includes a base portion 16a located below the oil amount gauge hole 11a of the filler cover 11 and larger than the oil amount gauge hole 11a, and an oil amount gauge hole above the base portion 16a. An oil level gauge guard 16 comprising a plurality of bars 16b provided through 11a and covering the display portion 3a of the oil level gauge 3 is provided.

  According to the first aspect of the present invention, the protective cover 10 that protects the fuel filler lid 4 is provided, and the protective cover 10 is provided with the fuel filler cover 11 that is placed on the upper surface of the tank 1 so that the fuel filler cover 11 is exposed to the fuel filler cover 11. By providing the filler opening 11c, and by providing the filler cover 11 on the filler cover 11 so that the filler opening 11c can be opened and closed and locked, the filler cover 4 is not opened by turning. Since the resin filler cap 4 cannot be destroyed, the danger associated with the filler cap 4 can be dealt with.

  Also, a protective cover 10 for protecting the oil level gauge 3 is provided, and the protective cover 10 is provided with an oil supply port cover 11 placed on the upper surface of the tank 1, and the display portion 3a of the oil level gauge 3 protrudes upward from the oil supply port cover 11. By providing the oil gauge hole 11a, the display base 3b of the oil gauge 3 is covered with the oil filler cover 11 and cannot be removed by turning the push screw, so that the danger relating to the oil gauge 3 can be dealt with. .

  In addition, a protective cover 10 is provided to protect the air vent 5. The protective cover 10 has an oil filler cover 11 placed on the upper surface of the tank 1 and a vertical base 5 a of the air vent 5 that is an inverted “J” -shaped tube. An air vent cover 13 is provided, an air vent hole 11b is provided in the filler opening cover 11 to project the air vent 5 upward, and most of the upper end of the air vent cover 13 is directly below the inner radius 5b of the air vent 5 pipe. The lower end of the air vent cover 13 rests on or is fixed on the filler cover 11 so that the upper end of the air vent cover 13 hits the inner radius 5b of the air vent 5 pipe. 13 does not move upward, and the filler opening cover 11 is also pressed by the air vent cover 13 and cannot be lifted, so that it is possible to deal with the danger related to the oil amount gauge 3 and the filler opening cover 4.

  Further, the oil filler cover 11 is provided with an oil gauge hole 11a for projecting the display portion 3a of the oil gauge 3 upward and an air vent hole 11b for projecting the air vent 5 upward. Since the two of the quantity gauge 3 and the air vent 5 are fitted and the oil filler cover 11 cannot be rotated in the horizontal direction, the danger related to the oil quantity gauge 3 and the oil filler lid 4 can be dealt with.

  In addition, by providing the oil port cover 11 with the oil port opening lid 12 that can be opened and closed and locked by closing the oil port opening 11c, there is no need to lift or remove the oil port cover 11 at the time of each refueling, Since the fuel filler opening lid 12 can be opened and the fuel filler lid 4 can be rotated, the troublesomeness in refueling can be eliminated.

  According to the second aspect of the present invention, the air vent 5 is turned by providing a detent protrusion 14a located above the inner radius 5b in the pipe of the air vent 5 at a part of the upper end of the air vent cover 13. Since the inner radius 5b in the pipe of the air vent 5 hits the anti-rotation projection 14a of the air vent cover 13 and cannot be removed by turning the air vent 5, it is possible to deal with the danger related to the air vent 5.

  In addition, the air vent cover 13 can be divided into two on the vertical plane, and the lower end of the air vent cover 13 is screwed to the oil port cover 11 at a position covered by the oil port opening lid 12, and the air vent hole of the oil port cover 11 is secured. 11b and the filler opening 11c are communicated, and the filler opening 11C is sized to allow the air vent 5 fixed to the tank 1 to pass, so that the air vent cover 13 sandwiches the vertical base 5a of the air vent 5 The refueling port cover 11 is attached and the air vent 5 is attached through the refueling port opening 11c so that the protective cover 10 can be easily and reliably attached.

  According to the third aspect of the present invention, the base 16a is located below the oil gauge hole 11a of the filler cover 11 and is larger than the oil gauge hole 11a, and the oil gauge hole 11a is provided above the base 16a. By providing the oil level gauge guard 16 comprising a plurality of rods 16b covering the display part 3a of the quantity gauge 3, the oil level gauge guard 16 cannot be removed, and the display part 3a of the oil level gauge 3 Since it is protected by the rod 16b of the gauge guard 16, the oil gauge 3 can be prevented from being damaged.

  FIG. 1 shows a protective cover 10 for a fuel oil tank according to an embodiment of the present invention.

  This fuel oil tank is a tank 1 for storing fuel oil such as a fuel oil stove and a boiler for heating and hot water supply, and is installed outdoors for domestic use to store about 500 liters of white kerosene. A substantially cubic tank 1 to be stored, four legs 2 supporting the tank 1 and positioned at the four corners, an oil gauge 3 for measuring the amount of fuel oil provided on the upper surface of the tank 1, and also provided on the upper surface It consists of an oil filler lid 4 that can be sealed with a screw, an air vent 5 provided on the upper surface, and an oil feed port 6 provided on the lower surface of the tank 1. On the upper surface of the tank 1, an oil amount gauge 3, an air vent 5, and a fuel filler lid 4 are arranged in this order.

  The tank 1 is composed of two square dish-shaped steel plates, and the projections are welded together at the outer ears with the projections as the outside, and the ears are installed in the vertical direction. Legs 2 are provided below the left and right ears of the tank 1, the ears are sandwiched between the two legs 2, and fixed with bolts. The lower end of each leg 2 is fixed to the ground E installed by the boulders 8 so that the tank 1 does not fall down due to an earthquake or the like.

  The oil level gauge 3 protruding from the upper surface of the tank 1 measures the oil level in the tank 1 with a float and displays the oil level on the display unit 3a above and below the pointer. The display base below the display unit 3a It is fixed to the tank 1 with three push screws provided on 3b. The diameter of the display base portion 3b is larger than the diameter of the display portion 3a.

  The display unit 3a is made of a transparent synthetic resin. However, since it is necessary for a fuel oil consumer or a refueling operator to see the pointer in the display unit 3a, the display unit 3a cannot be completely covered with the protective cover 10.

  The oil filler lid 4 on the upper surface of the tank 1 is a lid that can be opened and closed by turning a screw inside thereof, and is supplied into the tank 1 from the tank lorry through the oil filler opening from which the oil filler lid 4 is removed. In the embodiment, the fuel filler cap 4 is made of synthetic resin.

  The air vent 5 projecting from the upper surface of the tank 1 communicates the inside and outside of the tank 1 and introduces air into the tank 1 as the fuel oil is consumed. A wire mesh strainer is provided at the opening at the end of the downward pipe in accordance with the Fire Service Act to prevent sparks from entering the tank. The base 5a of the air vent 5 is fastened and fixed to the tank with a screw on the outer periphery of the pipe. In the embodiment, the pipe end portion of the air vent 5 is set in the direction of the oil amount gauge 3, but in practice, it is fixed in various directions in the horizontal direction.

  The oil feed port 6 includes a filter for filtering dust in the oil, a drain plug for draining water accumulated at the bottom of the tank 1, a dispensing port for supplying oil to the cartridge tank, etc., and a feed from the tank 1 to the filter. An open / close valve for stopping the oil and an oil feed pipe connection port for connecting the oil feed pipe 7 are provided.

  The oil feed pipe connection port of the oil feed opening 6 and the fuel oil stove and the like are connected by an oil feed pipe 7, and the fuel oil is fed by its own weight.

  The protective cover 10 protects the oil amount gauge 3, the filler cap 4 and the air vent 5.

  The protective cover 10 is provided with an oil filler cover 11, an air vent cover 13, an oil gauge guard 16 and a lock 17.

  The fuel filler cover 11 has a shape in which four sides of a substantially square plate in plan view are bent downward, has a height that covers the fuel filler lid 4, and a lower end portion of the fuel filler cover 11 is placed on the upper surface of the tank 1. An oil amount gauge hole 11a is provided on the upper surface of the oil supply port cover 11 corresponding to the oil amount gauge 3 so that the display portion 3a of the oil amount gauge 3 protrudes upward. The diameter of the oil amount gauge hole 11a is larger than the diameter of the display base portion 3b. Small and larger than the diameter of the display portion 3a.

  An air vent hole 11b for projecting the air vent 5 upward is provided on the upper surface of the filler cover 11 corresponding to the base portion 5a of the air vent 5, and the size of the air vent hole 11b is slightly larger than the tube diameter of the air vent 5 To do.

  A fuel filler opening 11c that exposes the fuel filler lid 4 is provided on the upper surface of the fuel filler cover 11 corresponding to the fuel filler lid 4. The oil supply opening 11C is set to a size that allows the air vent 5 fixed in various directions to the tank 1 to pass therethrough. Since the diameter of the filler cap 4 is smaller than the outer width of the air vent 5, the filler cap 4 can also be removed through the filler opening 11C.

  The air vent hole 11b of the filler opening cover 11 and the filler opening 11c are communicated. After the air vent 5 is attached through the filler opening 11c, the base 5a of the air vent 5 is passed through the air vent hole 11b.

  An oil supply opening 11c of the oil supply cover 11 is closed from above, and an openable and lockable oil supply opening lid 12 is provided. The filler opening opening lid 12 is a “U” -shaped plate that is slightly wider than the depth of the filler opening cover 11, and covers the filler opening 11 c of the filler opening cover 11 with the “U” opening facing downward. A hinge 12a is provided on the side opposite to the air vent hole 11b of the filler opening 11c, the hinge 12a is fixed to the filler cover 11 and the filler opening cover 12, and the filler opening cover 12 rotates around the hinge 12a as a fulcrum. Can be opened and closed.

  A lock hole 12b is formed on one side of the filler opening lid 12 opposite to the hinge 12a by bending the end upward to provide a hole, and the lock hole 11e of the filler cover 11 is provided at a position corresponding to the lock hole 12b. The lock 17 is locked through the lock hole 11e and the lock hole 12b, and the fuel filler opening lid 12 can be locked.

  The protective cover 10 is provided with an air vent cover 13 that covers the vertical base 5a of the air vent 5 that is an inverted “J” -shaped tube.

  The air vent cover 13 can be divided into two on the vertical surface, and is attached so as to sandwich the vertical base portion 5a of the air vent 5. The air vent cover 13 is provided with an air vent fixing cover 14 having a hat shape in plan view and an air vent cover 15 having a U shape in plan view.

  The vertical base 5a of the air vent 5 fits in the opening of the air vent fixing cover 14, and most of its upper end is located directly below the inner radius 5b of the air vent 5 pipe. The part is provided with a detent protrusion 14a positioned above the inner radius 5b of the air vent 5 pipe.

  A pair of engagement notches 14b are provided below the anti-rotation projection 14a and on the opposite side thereof on the upper surfaces of both ends of the air vent fixing cover 14 that do not correspond to the air vent 5. A pair of fastening holes 14d are provided in three steps in the upper and lower sides at the lower ends of the flat surfaces on both ends not corresponding to the air vent 5 of the air vent fixing cover 14. A number of vent holes 14c are provided between the engagement notches 14b and the fastening holes 14d.

  Only the central part of the air vent cover 15 corresponds to the vertical base 5 a of the air vent 5, but all the upper ends thereof are located immediately below the inner radius 5 b in the pipe of the air vent 5. The width of the air vent cover 15 is larger than the width of the air vent cover 14, and the air vent cover 14 fits into the “U” opening.

  A pair of engaging projections 15a projecting toward the air vent fixing cover 14 are provided on the upper surfaces of both ends of the air vent cover 15. A pair of fastening holes 15c are provided at the lower end of the flat surface on both ends of the air vent cover 15 in three levels. A large number of air holes 15b are provided between the engaging protrusions 15a and the fixing holes 15c.

  The air vent fixing cover 14 and the air vent cover 15 are fixed together as an engagement projection 15a fits into the engagement notch 14b.

  On the air vent hole 11b side of the filler opening 11c of the filler cover 11, a pair of fastening holes 11d are provided on the projecting pieces facing downward on both sides of the air vent hole 11b, and the fastening holes 14d of the air vent fixing cover 14 are provided. Then, the air vent cover 15 is fixed by screwing it into the fixing hole 11d of the filler cover 11 through the fixing hole 15c of the cover 15.

  This screwed position is a position covered with the filler opening opening lid 12, and the air vent cover 13 cannot be removed without opening the filler opening opening lid 12. Further, since the fixing hole 14d and the fixing hole 15c are provided in three upper and lower stages, it is easy to position the air vent cover 13 directly below the inner radius 5b of the air vent 5 pipe.

  The protective cover 10 is provided with an oil gauge guard 16 that covers the display portion 3a of the oil gauge 3.

  The oil gauge guard 16 is provided with a base 16a which is a plate having a hole larger than the diameter of the display base 3b of the oil gauge 3, and the diameter of the oil gauge gauge hole 11a is larger than the diameter of the display base 3b. The base portion 16a is larger than the oil amount gauge hole 11a. The base 16a is positioned below the oil gauge hole 11a and cannot be taken out from the oil gauge hole 11a.

  Three hat-shaped rods 16b, which are fixed to the base portion 16a, pass through the oil gauge hole 11a and cover the display portion 3a of the oil gauge 3 above the base portion 16a, are provided between the rods 16b. 3a is visible.

  To attach the protective cover 10, cover the oil level gauge 16 with the oil level gauge 3, sandwich the vertical base 5a of the air vent 5 with the air vent fixing cover 14 and the air vent cover 15 of the air vent cover 13, and The engagement notch 14b and the engagement protrusion 15a are integrated. The oil filler cover 11 is installed in the normal orientation, and the oil filler opening lid 12 is opened. The air vent 5 is inserted into the oil inlet opening 11c, and the convex part of the air vent fixing cover 14 is inserted into the air vent hole 11b. Insert the oil gauge guard 16 into the gauge hole 11a.

  Place the filler cover 11 on the upper surface of the tank 1 and lift the air vent cover 13 so that its upper end is positioned directly below the inner radius 5b of the air vent 5 pipe, using appropriate fastening holes 14d and 15c. Then, the screw hole 11d of the filler cover 11 is fixed with screws.

  The fuel filler opening lid 12 is closed, and the lock 17 is locked through the lock hole 11e and the lock hole 12b.

  In the embodiment, the pipe end portion of the air vent 5 is set in the direction of the oil gauge 3. However, the air vent 5 is actually fixed in various directions in the horizontal direction, and the air vent 5 is positioned on the anti-rotation protrusion 14a. In that case, the air vent 5 may be slightly tightened or loosened.

  In the above embodiment, an example in which the lower end portion of the air vent cover 13 is fixed to the fuel filler cover 11 is shown, but the lower end portion of the air vent cover 13 may be placed on the fuel filler cover 11. . In that case, it is preferable to prevent the air vent cover 13 from rotating by providing a protrusion and an engagement hole on the air vent cover 13 and the oil filler cover 11.

  In addition, although the example in which the inner radius 5b of the air vent 5 hits against the anti-rotation projection 14a of the air vent cover 13 is shown, the rotation is not limited to the shape of the projection, and the tube end of the air vent 5 is prevented from rotating. You may make it do.

  In addition, although the example in which the air vent cover 13 can be divided into two on the vertical plane by the air vent fixing cover 14 and the air vent cover 15 is shown, the air vent cover 13 may be indivisible. In that case, it is preferable that only the upper end portion covers the vertical base portion 5a of the air vent 5 and that the air vent 5 is inserted from the tube end portion.

  Further, although an example in which the lock hole 11e and the lock hole 12b are locked by the lock 17 provided separately is shown, a lock mechanism may be provided in the filler opening opening lid 12.

It is a front view which shows one Example of the protective cover of a fuel oil tank. It is the side view It is a top view of the principal part. It is the elements on larger scale which show the principal part of FIG. It is the elements on larger scale which show the principal part of FIG. FIG. 4 is a partially enlarged view showing a main part of FIG. 3. It is sectional drawing which follows the AA line of FIG. It is a top view of an oil filler cover. It is a front view of a filler opening cover. It is the top view which opened the filler opening opening cover of the filler opening cover. It is the side view which opened the filler opening opening cover of the filler opening cover. It is a side view of an air vent fixing cover. It is a side view of an air vent cover. It is the front view which decomposed | disassembled the air vent cover. It is the top view which decomposed | disassembled the air vent cover. It is a front view of an oil quantity gauge guard. It is a top view of the base of an oil quantity gauge guard.

Explanation of symbols

1 Tank 3 Oil gauge
3a Display 4 Refueling lid 5 Air vent
5a base
5b inner are
10 Protective cover
11 Filling port cover
11a Oil gauge hole
11b Air vent hole
11c Filler opening
12 Filling port opening lid
13 Air vent cover
14a Non-rotating protrusion
16 Oil level gauge guard
16a base
16b bar

Claims (3)

  In the fuel oil tank provided with an oil gauge, oil filler cap and air vent on the upper surface of the tank that stores fuel oil, a protective cover is provided to protect the oil gauge, oil filler cap and air vent. Oil that covers the top surface of the tank and an air vent cover that covers the vertical base of the air vent, which is an inverted “J” -shaped tube, and causes the oil gauge to project upward from the oil gauge cover. A gas gauge hole, an air vent hole that projects the air vent upward, and an oil filler opening that exposes the oil filler lid are provided, and the oil filler cover is provided with an oil cover opening lid that can be opened and closed and locked. Most of the upper end of the air vent cover is located directly below the inner radius of the air vent pipe, and the lower end of the air vent cover is placed on the fuel filler cover or attached to the fuel oil tank that is secured. Mamoru cover.   A part of the upper end of the air vent cover is provided with an anti-rotation protrusion that is located above the inner radius of the air vent pipe. The air vent cover can be divided into two parts on the vertical plane, and the lower end of the air vent cover is open at the filler opening. 2. The oil supply port cover is screwed at a position covered by a lid, the air supply hole of the oil supply port cover is connected to the oil supply port opening, and the oil supply port opening is sized so that an air vent fixed to the tank can pass therethrough. Protective cover for fuel oil tank.   Oil quantity consisting of a base located below the oil gauge hole in the filler cover and larger than the oil gauge hole, and a plurality of bars that pass through the oil gauge hole above the base and cover the oil gauge display. The protective cover for a fuel oil tank according to claim 1 or 2, further comprising a gauge guard.

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