JPH0740598U - Oil pipe structure for kerosene pump - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a kerosene pump. According to the present invention, an opening / closing lid is openably / closably attached to a tip opening portion of a fuel supply pipe that is inserted into and removed from a fuel supply hole of a fuel tank for a fueling work, and the opening / closing cover is for inserting the fuel supply pipe, It is intended to provide a kerosene pump configured to automatically open and close in association with a withdrawal operation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil supply pipe structure for a kerosene pump.

[0002]

[Prior art]

 When supplying kerosene from the kerosene tank to the fuel tank of household heating appliances, a commercially available electric or manual pump is used.

The hose of such a pump includes a hose equipped with an electric pump at a base end portion thereof, a hose equipped with a manual pump for manually sucking and discharging air, and the like. It is configured to be inserted into the inside and perform a kerosene refueling work via the hose.

[0004]

[Problems to be solved by the device]

 However, when the tip of the refueling hose is removed from the refueling hole in the fuel tank after the refueling work is completed, residual oil in the hose may drip and stain the floor or heating equipment. There was the trouble of laying paper or cloth for oil catching.

[0005]

[Means for Solving the Problems]

 This device has an opening / closing lid that can be freely opened and closed at the tip opening of the oil supply pipe that is inserted into and removed from the oil supply hole of the fuel tank for refueling work. It aims to provide a kerosene pump configured to automatically open and close in conjunction with each other.

[0006]

[Action]

 In this invention, when refueling the fuel tank, the refueling pipe is inserted into the refueling hole of the tank. At this time, the opening / closing lid at the lower end of the oil supply pipe is opened in association with the insertion work of the oil supply pipe.

In this state, the refueling work is completed.

After completion, the oil supply pipe is removed from the oil supply hole, and the opening / closing lid is closed in association with the removal.

Therefore, when the refueling pipe is pulled out from the refueling hole of the fuel tank, the lower end of the refueling pipe is closed by the opening / closing lid, so that the remaining kerosene in the refueling pipe does not drip and the opening / closing lid remains closed. The kerosene pump can be stored in a predetermined place.

[0010]

【Example】

 1 is a perspective view showing an oil supply pipe structure of a kerosene pump according to the present invention, in which A is an oil supply pipe, and the oil supply pipe A has a bellows body 1 at an upper portion thereof. The lower part is composed of the straight pipe 2.

An outer pipe 3 is loosely fitted to the outer circumference of the straight pipe 2, a mounting pipe 4 is loosely fitted to the outer circumference of the outer pipe 3, and the upper portion of the mounting pipe 4 is located above the upper end of the outer pipe 3. It is extended and fixed to the straight pipe 2.

A spring 5 is interposed between the upper end of the inner peripheral surface of the mounting pipe 4 and the upper end of the outer pipe 3. The fixing pipe 6 is pivotally supported on the outer peripheral surface of the mounting pipe 4 so as to be openable and closable.

Reference numeral 7 denotes a handle portion at the upper end of the fixing clip 6.

A stopper 8 is screwed onto the outer peripheral surface of the lower portion of the outer tube 3 so that the vertical position can be adjusted. The stopper 8 is on a flange portion 9 provided in an oil supply hole M-1 of the fuel tank M. It is configured to be able to abut on the end face.

An open / close lid 10 is attached to the lower end of the outer tube 3 so as to be openable and closable.

That is, the opening / closing lid 10 is attached to the lower end opening end surface of the straight pipe 2 so as to be freely contactable from below, and the bracket 11 of the opening / closing lid 10 is opened / closed on the outer pipe 3 via the pivotal support 12. It is pivotally supported.

Moreover, a lid cam S is formed on the inner surface of the bracket 11.

Further, a pipe cam T is formed on the outer peripheral surface of the lower end of the straight pipe 2, the lid cam S and the pipe cam T are configured to be meshable, and the pipe cam T is pushed downward. When this is done, a downward load is applied to the lid cam S, and rotational torque is applied to rotate the opening / closing lid 10 downward about the pivot portion 12 to open the lid.

On the other hand, in the open state, when the pipe cam T rises, an upward load is applied to the lid cam S, so that the opening / closing lid 10 pivots upward around the pivot 12 to close the lid. It is configured.

In the figure, F indicates kerosene.

The embodiment of the present invention is configured as described above, and its usage will be described. First, as shown in FIGS. 3 to 5, the outer tube 3 is moved to the position of the stopper 8 and the flange of the fuel tank M is moved. Insert from the portion 9 into the oil supply hole M-1.

In the figure, the arrow indicates the direction in which the force is applied.

Then, as shown in FIG. 4, the mounting pipe 4 is pushed down against the urging force of the spring 5 and is engaged with the outer peripheral surface of the flange portion 9 by the fixing clip 6.

In this state, the outer pipe 3 is fixed to the flange portion 9 of the fuel tank M.

In such a state, the straight pipe 2 is pushed down together with the attachment pipe 4, and the lid cam S receives the load downward from the pipe cam T to open the opening / closing lid 10. After that, the cams are disengaged and the opening / closing lid 10 is completely opened, and the straight pipe 2 projects below the lid 10, and the fueling operation is performed in this state.

As shown in FIG. 6, the opening / closing lid 10 is opened even if the straight pipe 2 is pushed downward as it is without engaging the fixing clip 6 with the flange portion 9, and after that, as shown in FIG. The fixing clip 6 can be engaged with the flange portion 9 as shown in FIG.

After the refueling work is completed, the fixing clip 6 is released, and the straight pipe 2 together with the mounting pipe 4 is lifted in the outer pipe 3 by the biasing force of the spring 5. The open / close lid 10 is closed by the engagement with S, and the outer tube 3 is removed from the flange portion 9 in this state.

[0028]

[Effect of device]

 According to this invention, the opening / closing lid is openably and closably attached to the opening of the tip of the oil supply pipe, and is configured to open and close in conjunction with the insertion and removal work of the oil supply pipe. The opening at the tip of the is closed, and when removing the refueling pipe from the fuel tank, there is an effect that residual oil will not drip and stain the surrounding area.

[Brief description of drawings]

FIG. 1 is a perspective view of the structure of the present invention.

FIG. 2 is a sectional explanatory view.

FIG. 3 is an explanatory view of a stopper contact state.

FIG. 4 is an explanatory view of an engagement state of a fixing clip.

FIG. 5 is an explanatory diagram showing a usage order of the proposed structure.

FIG. 6 is an explanatory diagram showing a usage order of the proposed structure.

FIG. 7 is an explanatory view showing the order of using the proposed structure.

[Explanation of symbols] A Oil supply pipe 2 Straight pipe 3 Outer pipe 4 Mounting pipe 5 Spring 6 Fixing clip 7 Handle part 8 Stopper 9 Flange part 10 Open / close lid 11 Bracket 12 Pivot part T Pipe cam S Lid cam

Claims (1)

[Scope of utility model registration request] 1. An opening / closing lid is openably and closably attached to a front end opening portion of an oil supply pipe which is inserted into and removed from an oil supply hole of a fuel tank for refueling work. A kerosene pump configured to open and close automatically in conjunction with.