JPH037600Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is an internal pressure relief valve that can be used to stop the supply of kerosene or to simplify the relief of internal pressure by attaching an internal pressure relief valve assembled from an elastic material to a conventional pressurized pump. This relates to the extraction valve.

<Conventional technology and its problems> Conventionally, refueling a kerosene container attached to a kerosene stove or a cartridge-type kerosene container,
As shown in Fig. 5, oil is supplied using a pressurized pump.This is done by attaching the above-mentioned pressurizing pump B to the entrance/exit of a kerosene supply container A such as a polyethylene tank, and pressing a push cap C formed on the top of the pressurized pump B. By repeating this, the pressure inside the kerosene supply container A rises, and kerosene is led to the supply hose D to be supplied. However, in this case, when the pressure inside the kerosene supply container A has increased, lubrication continues, so a nozzle gun E is attached to the tip of the supply hose D to adjust the lubrication. However, if the pressure inside the kerosene supply container A is left to rise, the kerosene supply container A (especially in the case of a polyethylene tank) will expand and will not return to its original shape. There is a problem that the kerosene supply container A will run out and its strength will decrease. Therefore, the internal pressure must be released by opening another stopper provided in the kerosene supply container A, or a special internal pressure release device is attached to the pump body. The only way to pull it out is to twist it, and currently there are models on the market that are equipped with internal pressure relief devices, but most of them are assembled using screws, which requires a lot of effort to assemble and screw. Furthermore, there were other problems such as increased product cost.

<Means for solving the problem> In order to solve the above problem, the present invention provides an internal pressure relief valve that is assembled to the internal pressure relief mounting cylinder provided on the pressurized pump body using the elastic properties of plastic. The main body is attached to a hollow base that is attached to the opening of a kerosene supply container, and an air intake valve element and an air pressure injection valve element are arranged at the upper and lower parts of the upper opening of the hollow base, respectively. It is used in a pressurizing pump, which is constructed by connecting an air compressor that can freely compress up and down, and applying pressure by expanding and contracting the upper and lower parts of the air compressor.It is made of an elastic material, and has an internal pressure release hole at the tip. A cylindrical valve body is integrally formed, and a required number of locking claws are opened at the distal end of the valve body, and the proximal end is open, and the internal pressure release hole of the valve body is opened and closed. A valve body for internal pressure control is integrally formed at the tip,
and a valve stem with a connecting claw at its base end,
A push button which is loosely inserted into the valve body from the outside of the internal pressure release hole and has a connecting hole opened in the outer circumferential wall of the proximal cylinder body is inserted between the connecting claw and the connecting hole. a spring is interposed between the proximal circumferential edge of the push button and the tip of the valve body, and the internal pressure relief hole is normally sealed by the biasing force of the spring; Further, the valve body is fitted into a cylindrical air vent cylinder communicating with the hollow part of the outer circumferential wall of the hollow base, and is locked by a locking claw at the tip thereof. This is an internal pressure valve for pressurized pumps.

<Embodiments and operations> The internal pressure release valve additional pressure pump according to the present invention will be described in detail below with reference to drawings showing embodiments thereof.

Figure 1 is a cross-sectional explanatory diagram of the pressurized pump used in the present invention, Figure 2 is a cross-sectional explanatory diagram showing the mounting structure of the internal pressure relief valve, Figure 3 is an explanatory diagram of the assembly of the internal pressure relief valve, and Figure 4 is the present invention. 1 shows a perspective view of the whole, in which a mounting nut 2 is attached to the opening b of a kerosene supply container a such as a polyethylene tank at the lower part, and a disc-shaped upper case receiving part 3 is formed at the upper part. This is a hollow base, and a cylindrical upper case 4 is formed on the upper case receiving part 3 of the hollow base 1, and the upper center part of the upper end is open.

An accordion-shaped air compressor 5 that can be contracted vertically is housed in the upper case 4 so that its lower part communicates with the internal space of the hollow base 1. Valve body 6, 6'
It is intended to provide Therefore, a press cap 7 is provided which protrudes loosely into the upper opening of the upper case 4 and whose lower peripheral edge is fixed to the upper part of the air compressor 5. In other words, in this configuration,
By pushing down the push cap 7, the air compressor 5 is compressed, and the compressed air therein opens the lower valve body 6', causing the hollow base 1 to open.
The kerosene is pumped through the hollow part b of the kerosene and into the kerosene supply container a which is in communication with the hollow part b.

Also, in this state, the upper valve body 6 is closed, and then air flows into the compressed air compressor 5 by opening the upper valve body 6, causing it to expand upward. At the bottom, the lower valve body 6' is closed so that the air in the kerosene supply container a does not escape to the outside, and by repeating the series of operations described above, the kerosene supply is completed. The internal pressure inside container a is increased.

There, the kerosene in the kerosene supply container a is communicated with the outside of the hollow base 1 through the hollow part b of the hollow base 1 so as to be connected to the kerosene supply hose 8 in a communicating manner. A protrusion 10 that forms a kerosene push-up pipe 9 and protrudes outward from the hollow base 1 is connected to the kerosene supply hose 8 by a hose lock nut 11, and is suspended in the kerosene. A flexible bellows hose 1 is attached to the part to be hung.
It is desirable to use 2. An air vent cylinder 13 is formed protruding from the outside of the hollow base 1 and communicates with the inside of the hollow part b.

Therefore, in the same air vent cylinder 13, as shown in FIGS.
As shown in the figure, it is made of an elastic material such as a plastic material, has internal pressure relief holes 14 at its tip, and has a required number (in this example, 2 holes) at the tip edge.
A cylindrical valve body 16 into which the locking claws 15, 15 are opened is integrally formed.
The valve body 16 is fitted into the air vent cylinder 13, and is firmly engaged with the inner edge of the hollow base 1 due to the elasticity of the upper air locking claws 15, 15. An internal pressure control valve element 17 for controlling the opening and closing of the internal pressure release hole 14 of the valve body 16 is integrally formed at the tip of the valve rod, and connecting claws 18, 18 are opened at the base end of the valve rod. 19
is inserted inward from the tip side of the valve body 16 in a loose fit manner. Next, a spring 20 is attached to the valve body 16 so as to enclose the valve stem 19.
The push button 22, which has connecting holes 21, 21 formed in the outer wall of the proximal end cylinder body, is inserted into the inner wall and connected to the connecting claws 18, 18, at the peripheral edge of the proximal end of the push button 22. It is inserted into the valve body 16 while resisting the biasing force of the spring 20, and is connected to the connecting claws 18, 18. In other words, the push button 22
In the state where the valve rod 19 and the valve rod 19 are connected, the internal pressure relief hole 14 is sealed by the internal pressure control valve body 17 due to the biasing force of the spring 20. Further, by pushing the push button 22 into the valve body 16 while resisting the biasing force of the spring 20, the internal pressure release hole 14 is opened.

Reference numerals 23 and 23 indicate rings for preventing air release, and the connection when assembling the above parts is done by utilizing the elasticity of the plastic material.
The internal pressure release valve mechanism assembled in this way is inserted into the air release cylinder 13 and engaged.

In the present invention having the above configuration, by pressing the push button 17 of the internal pressure relief device 14,
The valve stem 16 is pressed to open the internal pressure control valve body 15, and the air inside the kerosene supply container a flows out to the outside, lowering the internal pressure. Further, in a normal state, the internal pressure control valve body 15 is closed by the biasing force of the spring 19, and there is no problem in the case of pressurizing operation for supplying kerosene.

<Effects of the invention> As described above, according to the invention, the supply of kerosene can be stopped freely by providing an internal pressure relief device to a normal pressurized pump, and it is possible to stop the supply of kerosene at will, unlike conventional pressurization pumps. This saves time and effort.

In addition, by using elastic materials such as plastic for the component parts and utilizing its spring characteristics, it can be assembled easily without using screws, and can be assembled quickly and inexpensively, among other effects. .

[Brief explanation of drawings]

Figure 1 is an explanatory cross-sectional view of the pressurized pump used in the present invention, Figure 2 is an explanatory cross-sectional view showing the mounting structure of the internal pressure relief valve, Figure 3 is an explanatory diagram of the assembly of the present invention, and Figure 4 is an explanatory diagram of the present invention. The overall perspective view, FIG. 5, is an explanatory diagram showing a conventional pressurizing pump. In the figure, 1: hollow base, 4: upper case, 5:
Air compression body, 6, 6': upper and lower valve bodies, 7 push cap, 9: kerosene push tube, 13: air vent cylinder, 1
4: Internal pressure release hole, 15, 15: Locking claw part, 1
6: Valve body, 17: Internal pressure control valve body, 18,
18: Connection pawl, 19: Valve stem, 20: Spring, 21, 21: Connection hole, 22: Push button.

Claims (1)

[Scope of utility model registration request] An air compressor that can be compressed vertically is connected to the upper end opening of a hollow base that is attached to the opening of the kerosene supply container, and has an air intake valve element and an air pressure injection valve element arranged at the upper and lower parts, respectively. Close the air compressor,
It is used for a pressurized pump that is configured to apply pressure by expanding and contracting the bottom, and is made of an elastic material, has an internal pressure release hole at the tip, and has a required number of locking claws on the edge of the tip. A cylindrical valve body with legs and an open base end is integrally formed, and an internal pressure control valve body for controlling opening and closing of an internal pressure relief hole of the valve body is integrally formed at the tip, A valve stem having a connecting claw at its base end is inserted loosely into the valve body from outside the internal pressure release hole, and a connecting hole is opened in the outer circumferential wall of the proximal cylinder body. The push button is connected by fitting the connecting claw into the connecting hole, and a spring is interposed between the circumferential edge of the proximal end of the push button and the inside of the tip of the valve body, so that the push button is normally connected. The internal pressure bleed hole is sealed by the biasing force of the spring, and a cylindrical air bleed cylinder that communicates with the hollow part of the outer circumferential wall of the hollow base includes:
An internal pressure valve for a pressurized pump, characterized in that the above-mentioned valve body is inserted into the valve body and locked by a locking claw portion at the tip thereof.