JP3024966U - Butane gas container connection adapter - Google Patents

Abstract

(57) [PROBLEMS] To provide a connection adapter for a butane gas container, which can maintain good connection with the butane gas container even after repeated use for a long time and is easy to handle. A gas ejection nozzle (2) of a butane gas container (G) is inserted into a nozzle insertion socket of a receiving plate (20) rotatably connected to a body (10) with a knob (12) within a predetermined range. Then, the receiving plate is brought into close contact with the contact plate with the position determining piece (21) on the bottom surface of the receiving plate fitted in the notch groove (1a) of the contact plate (1) of the annular support ring (1a) of the container. . Next, when the body is rotated in a predetermined direction with respect to the receiving plate and the container, a plurality of protrusions (31) of the cam (30) which rotates with the body on the bottom surface side of the receiving plate are concentrically formed on the bottom surface of the receiving plate. The plurality of formed elastic pieces (22) are pressed outward in the radial direction so that the retaining step portions (22b) of the elastic pieces are retained in the inner recesses of the support ring (1b) of the container.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a butane gas container connection adapter, and more particularly, to a butane gas container connection adapter that allows a gas combustion instrument for a high pressure gas container to be easily connected to the butane gas container.

[0002]

[Prior art]

 In general, small gas containers are used for various gas combustion appliances that can be carried or moved freely.

As such a small gas container, a butane gas container which is mainly used in a normal climate at home or outdoors, and an environment temperature and atmospheric pressure which are different from those in a normal climate such as mountain climbing are different. A high-pressure dome-shaped gas container that can be used in various environments is known.

The butane gas container is equipped with a thin pipe-shaped gas ejection nozzle protruding from one end surface of a substantially cylindrical storage container G of a predetermined size. The gas ejection nozzle is inserted into a gas ejection nozzle insertion socket of a gas combustion appliance. The gas is supplied from the gas ejection nozzle to the gas combustion device simply by inserting the gas.

The high-pressure gas container has a relatively large-diameter threaded portion on the outer peripheral surface of the gas ejection nozzle, which is screwed into the gas ejection nozzle insertion socket of the gas combustion appliance. Gas is supplied from the gas ejection nozzle to the gas combustion instrument by screwing the gas ejection nozzle insertion socket of the gas combustion instrument into the threaded portion on the outer peripheral surface of the gas ejection nozzle.

As described above, since the usable gas containers differ depending on the type of gas combustion appliance, it is necessary to prepare a usable gas container for each type of gas combustion appliance. Moreover, while the butane gas container can be easily purchased in the vicinity of daily life, the high pressure gas container has a special purpose, so that the purchasing place is limited to, for example, a mountaineering specialty store.

For this reason, recently, there is an increasing need for a connection adapter for making an easily-purchasable butane gas container usable as a gas combustion instrument for a high-pressure gas container.

A conventional connection adapter of this type has a gas ejection nozzle insertion socket for receiving a thin pipe-shaped gas ejection nozzle of a butane gas container formed on the bottom surface and has the same size and size as the gas ejection nozzle of a high-pressure gas container on the upper surface. And a body provided with a gas ejection nozzle having a gas ejection nozzle, and a gas flow rate adjustment for adjusting the ejection amount of the gas ejected from the gas ejection nozzle on the upper surface through a flow rate adjustment knob protruding from the body. The mechanism is stored. Further, the fuselage is provided with coupling means for selectively coupling the fuselage to the butane gas container.

When a butane gas container is used in combination with a gas burning appliance for a high-pressure gas container using this type of connection adapter, first of all, the butane gas container is inserted into the gas ejection nozzle insertion socket on the bottom of the body of the connection adapter. The body is connected to the butane gas container by the connecting means with the thin pipe-shaped gas ejection nozzle inserted. Next, a gas combustion device for a high-pressure gas container may be connected to the gas ejection nozzle on the upper surface of the body of the connection adapter.

[0010]

[Problems to be solved by the device]

 The conventional connecting means of this type of connection adapter is composed of a swing lever which is swingably connected to the lower end of the body of the connection adapter in a direction orthogonal to the centerline of the body. The gas ejection nozzle is hooked on the back surface of the ring-shaped contact plate that surrounds the gas ejection nozzle at one end to maintain the connection between the body of the connection adapter and the butane gas container.

However, the coupling means constituted by such a rocking lever is likely to loosen at the rocking fulcrum due to the repeated use, and as a result, due to the repeated use, an annular close contact of one end of the butane gas container is achieved. Loosening easily occurs on the back of the board. If the locking by the rocking lever is loose, a gap is created between the gas ejection nozzle insertion socket on the bottom of the body of the connection adapter and the tip of the gas ejection nozzle of the butane gas container. Leakage may occur.

Due to such difficulty in handling, conventional connection adapters of this type have not been widely used.

The present invention has been made under the above circumstances, and an object of the present invention is to be able to always maintain a good connection state with a butane gas container despite repeated use over a long period of time, and to handle it. It is to provide a connecting adapter for butane gas containers that is easy.

[0014]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object of the present invention, a connection adapter of a butane gas container according to the present invention is: a circle having a bottom surface formed with a gas ejection nozzle insertion socket for receiving the thin pipe-shaped gas ejection nozzle of the butane gas container. A bottom surface in which the top surfaces of the plate-shaped receiving plates are concentrically and rotatably connected, and a top surface provided with a gas ejection nozzle having the same size and configuration as the gas ejection nozzle of a different type from the butane gas container; The body has a body with a gas flow rate adjustment mechanism that adjusts the amount of butane gas ejected from the gas ejection nozzle on the upper surface; the body is selected as the butane gas container on the bottom of the receiving plate. A coupling means for physically coupling is provided. The connecting means are: a position determining piece provided on the bottom surface of the receiving plate and fitted in a notch groove provided around the gas ejection nozzle in the butane gas container; and respective projecting ends provided so as to project from the bottom surface of the receiving plate. At least two elastic pieces each having a hooking step portion; and a cam provided between the at least two elastic pieces on the bottom surface of the receiving plate so as to be rotatable relative to the receiving plate together with the body; Is included. Further, the cam receives the gas ejection nozzle of the butane gas container in the gas ejection nozzle insertion socket of the receiving plate, fits the position determining piece of the receiving plate into the notch groove of the butane gas container, and further attaches the at least two elastic pieces. In the butane gas container, the at least two elastic pieces are rotated relative to the receiving plate together with the body while being inserted inside the support ring provided around the gas ejection nozzle. By pressing outwardly in the radial direction with respect to the center of motion, the hooking steps of the projecting ends of the at least two elastic pieces are hooked in the inward recesses of the support ring provided around the gas injection nozzle in the butane gas container. The feature is that

(Operation) When the connection adapter of the butane gas container according to the present invention having the above-mentioned structure is connected to the butane gas container, first, the socket for inserting the gas ejection nozzle of the receiving plate is connected to the socket. The gas ejecting nozzle of the butane gas container is received and the position determining piece of the receiving plate is fitted into the notch groove of the butane gas container, and further, at least two elastic pieces are attached to the supporting ring provided around the gas ejecting nozzle in the butane gas container. Insert inside. Next, in this state, when the cam is rotated relative to the receiving plate together with the body, the cam presses the at least two elastic pieces outward in the radial direction with respect to the center of rotation of the elastic piece. The protruding step portions of the two elastic pieces are hooked in the inward recesses of the support ring provided around the gas ejection nozzle in the butane gas container. In this way, the connection adapter of the butane gas container is always easily and securely connected to the butane gas container thanks to the connecting means.

Hereinafter, one embodiment and another embodiment of the connection adapter for a butane gas container of the present invention will be described in detail with reference to the accompanying drawings.

[0017]

[Embodiment of device]

 One embodiment of the butane gas container connection adapter of the present invention is, as shown in FIGS. 1 and 2, a gas ejection nozzle insertion socket 10 '(FIG. 1) for receiving a narrow pipe-shaped gas ejection nozzle 2 of a known butane gas container G. 4) has a bottom surface on which a top surface of a disk-shaped receiving plate 20 is concentrically and rotatably connected, and a size and a structure equal to those of a gas ejection nozzle of a known high-pressure gas container (not shown). An upper surface provided with a gas ejection nozzle 11a having a flow rate adjusting knob 12 protruding from the body 10 in a direction intersecting with the center line of the body 10. A gas flow rate adjusting mechanism (not shown) for adjusting the ejection amount of butane gas ejected from the gas ejection nozzle 11a on the upper surface is stored. Further, a coupling means 100 for selectively coupling the body 10 to the butane gas container G is provided on the bottom surface of the receiving plate 20.

The most important feature of the present invention is that the connecting means 100 keeps the connected state of the body 10 of the connection adapter to the tongue container G easily and surely and satisfactorily, regardless of repeated use over a long period of time. That is what you can do.

The coupling means 100 of this one embodiment has a position determining piece 21 projecting downward from the peripheral edge portion of the bottom surface of the receiving plate 20, and the bottom surface of the receiving plate 20 has the butangas container G. When contacting the annular contact plate 1 surrounding the gas ejection nozzle 2 at one end of the position determining piece 21, the position determining piece 21 is fitted into the notch groove 1a formed in the contact plate 1 of the butane gas container G as shown in FIG. Be done. As a result, the relative rotation of the connection adapter with respect to the butane gas container G in the clockwise direction and the counterclockwise direction is blocked.

A position indicating means is provided on the upper surface of the receiving plate 20 at a position corresponding to the position determining piece 21, and a position indicating groove 40 is formed in this one embodiment. The position indicating groove 40 facilitates the work of fitting the position determining piece 21 of the coupling means 100 into the notch groove 1 a of the receiving plate 20 of the butane gas container G in a dark environment. It is more preferable to apply a luminescent material to the position display groove 40. Further, the position display means may be a position display protrusion, or may be coating, printing or pasting of a position display mark.

The coupling means 100 further has six elastic pieces 22 arranged concentrically at substantially equal intervals around the gas ejection nozzle insertion socket 10 ′ on the bottom surface of the receiving plate 20 and projecting downward. ing. These elastic pieces 22 are made of elastic synthetic resin material or the like, and each projecting end portion thereof has a latching step portion 22b projecting outward in the semi-radial direction of the gas ejection nozzle insertion socket 10 '. Are formed.

When the bottom surface of the receiving plate 20 of the connection adapter is brought into contact with the contact plate 1 at one end of the butane gas container G, the six elastic pieces 22 of the coupling means 100 are connected to the butane gas container G as shown in FIG. It is inserted into the gap between the gas ejection nozzle 2 and the support ring 1b which is concentrically formed on the gas ejection nozzle 2 at one end and which supports the inner peripheral surface of the annular contact plate 1. The latching step portion 22b is opposed to the inward recess of the support ring 1b.

Between the gas ejection nozzle insertion socket 10 ′ and the six elastic pieces 22 on the bottom surface of the receiving plate 20, a cam 30 concentrically arranged with respect to these is arranged. The cam 30 is fixed to the bottom surface of the body 10 by a plurality of screws S penetrating a plurality of arc-shaped elongated holes 24 formed concentrically in the receiving plate 20, and the extension length of the elongated hole 24. Within the range, the body 10 and the receiving plate 20 can rotate relative to each other in the clockwise direction and the counterclockwise direction.

The cam 30 has six cam projections 31 protruding in the gaps between the six elastic pieces 22 of the receiving plate 20, and the bottom surface of the receiving plate 20 of the connection adapter is the butane gas container G. When the body 10 is rotated relative to the butane gas container G in the counterclockwise direction when viewed from above with respect to the butane gas container G while being in contact with the contact plate 1 at one end, the body 10 together with the receiving plate 20 and Each of the six cam projections 31 of the cam 30 that rotates relative to the butane gas container G has an inclined surface on the back surface of the projecting end of the elastic piece 22 located on the counterclockwise direction side ((in FIG. 2). (See B)) and the protruding end of the elastic piece 22 is bent outward in the radial direction of the body 10. As a result, the hooking step 22b at the protruding end of the elastic piece 22 is hooked in the inward recess of the support ring 1b as shown in FIG. 5, and the firm and reliable connection of the connection adapter to the butane gas container G is completed. It

On the back surface of the projecting end of the elastic piece 22 on the side opposite to the inclined surface, the stopper 22a that abuts the cam projection 31 of the cam 30 to prevent the cam 30 from rotating in the counterclockwise direction. Are formed. The stopper 22a is provided when the cam 30 is rotated in the counterclockwise direction in order to lock the latching step 22b of the protruding end of the elastic piece 22 in the inward recess of the support ring 1b as shown in FIG. The six cam projections 31 flex the six elastic pieces 22 outwardly in the radial direction of the body 10 so that the hooking step portions 22b at the projecting ends of the elastic pieces 22 are supported by the support ring 1b as shown in FIG. After it is locked in the inner concave portion of the body, it is further rotated in the counterclockwise direction, and the six elastic pieces 22 are bent outward in the radial direction of the body 10 to the original position shown in FIG. This prevents the latching stepped portions 22b at the projecting ends of the six elastic pieces 22 from being released from the latching inward recesses of the support ring 1b. That is, the stopper 22a guarantees that the latching stepped portion 22b of the protruding end of the elastic piece 22 is latched in the inward recess of the support ring 1b by the rotation of the cam 30 in the counterclockwise direction as shown in FIG. are doing.

Furthermore, after the connection adapter is firmly connected to the butane gas container G as described above, a publicly known gas combustion instrument for a high pressure gas container (not shown) is connected to the gas ejection nozzle 11a of the body 10 of the connection adapter. To be done.

After that, if the flow rate adjusting knob 12 is rotated in a predetermined direction, the butane gas that has flowed into the connection adapter from the gas ejection nozzle 2 of the butane gas container G is released from the gas ejection nozzle 11a of the connection adapter, which is not shown. It can be ejected to a gas combustor for a high-pressure gas container, and by adjusting the amount of rotation of the flow rate adjusting knob 12 in a predetermined direction, a gas for a known high-pressure gas container (not shown) from the gas ejection nozzle 11a. It is possible to adjust the amount of butane gas ejected to the combustion equipment.

When the butane gas container G and the connection adapter thus combined are separated from each other, the body 10 is moved in the opposite direction to the above-described connection (that is, in the clockwise direction in FIG. 3). When rotated relative to G, the six cam projections 31 of the cam 30 that rotates relative to the body 10 together with the receiving plate 20 and the butane gas container G are respectively pressing. The protruding end portion of the elastic piece 22 is separated from the back surface to allow the protruding end portion of the elastic piece 22 to return to the original position inward in the radial direction of the body 10 shown in FIG. 4 by its own elastic force. As a result, the hooking step portion 22b at the protruding end of the elastic piece 22 is released from the hooking inward of the support ring 1b as shown in FIG. 4, and the connection adapter to the butane gas container G is firmly and securely connected. It will be canceled. Then, the butane gas container G and the connection adapter can be separated from each other.

Although the number of the elastic pieces 22 on the bottom surface of the receiving plate 20 of the connection adapter is six in the above-described one embodiment, if the number of elastic pieces 22 is at least two, the supporting ring 1b of the butane gas container G can be formed. The locking step 22b at the protruding end of the elastic piece 22 is securely locked to the inward recess. However, in order to increase the resistance that ensures the above-mentioned coupling against external force applied to the connection adapter or the butane gas container G from the outside while the connection adapter is coupled to the butane gas container G, the resistance is increased. It is preferable to use six elastic pieces 22 as shown in the drawing.

The butane gas container G and the connection adapter are mutually coupled and separated by rotating the body 10 relative to the butane gas container G in the counterclockwise direction and the clockwise direction as described above. It goes without saying that not only this but also the butane gas container G can be performed by rotating the butane gas container G relative to the body 10 in the clockwise direction and the counterclockwise direction.

Accordingly, the operation for connecting and disconnecting the butane gas container G and the connection adapter to each other is easy for a person without specialized knowledge, and the quick connection and separation are possible. FIG. 6 shows another embodiment of the connection adapter for a butane gas container according to the present invention, in which the bottom surface of the receiving plate 20 is substantially concentric with the socket 10 'for inserting the gas ejection nozzle. Two elastic pieces 22 are formed at intervals of 180 degrees and project downward. The cam 30 for these two elastic pieces 22 is formed in an elliptical shape, and the lengths in the direction along the long axis of the cams 30 face each other at the protruding ends of the two elastic pieces 22. It is set slightly longer than the distance between the back sides.

Also in this other embodiment, as in the case of the one embodiment described above with reference to FIGS. 1 to 5, the butane gas container G and the connection adapter are connected and disconnected by the connection. Rotating the body 10 relative to the butane gas container G in the counterclockwise and clockwise directions while the bottom surface of the receiving plate 20 of the adapter is in contact with the contact plate 1 at one end of the butane gas container G. Alternatively, or by rotating the butane gas container G relative to the body 10 in the clockwise direction and the counterclockwise direction. When the both ends of the cam 30 in the long axis direction are brought into contact with the rear surfaces of the protruding ends of the two elastic pieces 22 by the relative rotation as described above, the protruding ends of the two elastic pieces 22 are shown in FIG. From the original position shown, it elastically bends outward in the radial direction of the body 10, and the hooking step portion 22b of the protruding end of the elastic piece 22 is hooked in the inward recess of the support ring 1b and connected to the butane gas container G. A strong and secure connection of the adapter is completed. In addition, if the contact between the two ends of the cam 30 in the longitudinal direction of the cam 30 with respect to the rear surface of the protruding ends of the two elastic pieces 22 is released by the relative rotation as described above, the protruding ends of the two elastic pieces 22 are released. 6 elastically returns to the original position shown in FIG. 6 inward in the radial direction, and the latching step 22b at the projecting end of the elastic piece 22 is released from the latching to the inward recess of the support ring 1b. It

[0033]

[Effect of device]

 As described in detail above, according to the connection adapter of the butane gas container of the present invention, it is possible to always maintain a good connection with the butane gas container despite repeated use over a long period of time, and it is easy to handle. .

[Brief description of drawings]

FIG. 1 is a perspective view showing one embodiment of a connection adapter for a butane gas container of the present invention and a vicinity of a gas ejection nozzle of a known butane gas container to which the one embodiment is connected, in a state of being separated from each other. Is.

2A is a bottom view of the connection adapter of the embodiment of FIG. 1, and FIG. 2B is one of a plurality of elastic pieces of the coupling means on the bottom surface of the connection adapter of FIG. It is an enlarged view of a projecting end.

3 is a bottom view of a receiving plate of the connection adapter according to the embodiment of FIG. 1, which is in contact with a contact plate around the gas ejection nozzle at one end of the butane gas container, and the connection adapter and the butane gas container are connected to each other; FIG. 3 is a plan view showing a state immediately before the connecting adapters are connected to each other by the connecting means characteristic of the present invention by partially cutting out a part of the connecting means of the connecting adapter horizontally.

FIG. 4 is a side view showing the same state as FIG. 3 by vertically cutting out a part of the coupling means of the connection adapter and a part of the butane gas container.

5 shows a state in which the connection adapter of one embodiment of FIG. 1 and the butane gas container of FIG. 1 are mutually connected by the connection means of the connection adapter, which is characteristic of the present invention. FIG. 3 is a side view showing a part and a part of the butane gas container by cutting out vertically.

FIG. 6 is a bottom view of the coupling means characteristic of the present invention in another embodiment of the connection adapter for a butane gas container of the present invention.

[Explanation of symbols]

G ... Butane gas container, 1 ... Adhesive plate, 1a ... Notch groove, 1b
... Support ring, 2 ... Gas ejection nozzle, 10 ... Body, 10
??? ... Gas ejection nozzle insertion socket, 11a ... Gas ejection nozzle, 12 ... Flow rate adjusting knob, 20 ... Receiving plate, 21 ... Positioning piece, 22 ... Elastic piece, 22a ... Stopper, 22b ...
Latching step, 24 ... elongated hole, 30 ... cam, 31 ... cam projection,
40 ... Position display groove, 100 ... Coupling means, S ... Screw.

Claims (5)

[Scope of utility model registration request] 1. A bottom surface in which a top surface of a disk-shaped receiving plate having a bottom surface formed with a gas ejection nozzle insertion socket for receiving a thin pipe-shaped gas ejection nozzle of a butane gas container is concentrically and rotatably connected. The butane gas container has a body having a top surface provided with a gas ejection nozzle having the same size and configuration as the gas ejection nozzle of a different type from the butane gas container, and the body has a butane gas ejected from the top surface gas ejection nozzle. A gas flow rate adjusting mechanism for adjusting the jetting amount of gas is provided, and a coupling means for selectively coupling the body to the butane gas container is provided on the bottom surface of the receiving plate, and the coupling means is provided on the bottom surface of the receiving plate. In the butane gas container, the position determining piece is fitted into the notch groove provided around the gas ejection nozzle, and the position determining piece protrudes from the bottom surface of the receiving plate. At least two elastic pieces having hooking steps at the projecting ends, and a cam provided between the at least two elastic pieces on the bottom surface of the receiving plate so as to be rotatable relative to the receiving plate together with the body. The cam receives the gas injection nozzle of the butane gas container in the gas injection nozzle insertion socket of the receiving plate and fits the position determining piece of the receiving plate into the notch groove of the butane gas container, and further, the at least two elastic members. By rotating the piece relative to the receiving plate together with the body in a state in which the piece is inserted inside the support ring provided around the gas ejection nozzle in the butane gas container, the above-mentioned at least 2
One elastic piece is pressed outward in the radial direction with respect to the center of rotation of the elastic piece, so that the hooking step portions of the projecting end portions of the at least two elastic pieces of the support ring provided around the gas ejection nozzle in the butane gas container. A connection adapter for a butane gas container, characterized in that it is hooked in an inward recess. 2. The connection adapter for a butane gas container according to claim 1, wherein the cam has an elliptical shape. 3. The butane gas container connection adapter according to claim 1, wherein the cam has cam projections of a number corresponding to the number of elastic pieces on the bottom surface of the receiving plate. 4. The cam is fixed to the body with a screw inserted into a through hole formed in the receiving plate, and is rotatable relative to the receiving plate together with the body. The connection adapter for the butane gas container according to claim 1. 5. The connection adapter for a butane gas container according to claim 1, wherein position indicating means is provided at a position corresponding to the position determining piece on the surface of the receiving plate.