JP2014119248A - Piezoelectric ignition gas burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piezo ignition type gas burner which may optionally change a direction of a tip of a nozzle unit and maintain the direction.SOLUTION: The invention includes: a burner body 10 having a connection part 11 which is connected with a liquefied gas cylinder; a cylindrical nozzle unit 20 which has a jet port 21 and an electrical discharge electrode part 22 near a tip; and a bellows-like connection hose part 30 which connects the burner body 10 with the nozzle unit 20 and may bend so as to change a direction of the jet port 21 and maintain the direction.

Description

  The present invention relates to a piezoelectric ignition type gas burner which is a handy type used in connection with a liquefied gas cylinder and in which a crater unit can be replaced.

  Conventionally, as a gas burner using a replaceable liquefied gas cylinder, a piezoelectric ignition type gas burner is known in which a crater unit is connected to the tip of a burner main body having a connecting portion of a liquefied gas cylinder and can be injected from the tip ( For example, see Patent Document 1).

2010-133661 gazette

  However, in the above-described piezoelectric ignition type gas burner, for example, the crater unit is replaceable depending on the application, but any crater unit uses a straight tube or an elbow tube, and has an arbitrary angle. It was not possible to inject.

  Therefore, an object of the present invention is to provide a piezoelectric ignition type gas burner that can arbitrarily change the direction of the tip of the crater unit and can maintain the direction.

  In order to solve the above problems, a piezoelectric ignition gas burner according to the present invention includes a burner body having a connecting portion connected to a liquefied gas cylinder, a cylindrical crater unit having an injection port and a discharge electrode portion near the tip, And a bellows-shaped connection hose portion that connects the burner body and the crater unit, and that can change the direction of the injection port and bendable so as to maintain the direction.

  At this time, the burner main body holds the connecting portion and has a liquefied gas supply passage disposed therein, and a valve portion provided in the base and connected to the supply passage to adjust the flow rate of the liquefied gas. And an ignition operation part that is electrically connected to the discharge electrode part from the base part via the connection hose part and discharges the discharge electrode part.

  Further, the connection hose part is detachably attached to the base part and includes a contact part capable of electrically connecting the ignition operation part and the discharge electrode part, and has a length at least with respect to the crater unit. It is desirable that the different connection hose portions can be exchanged.

  The piezoelectric ignition type gas burner of the present invention can arbitrarily change the direction of the tip of the crater unit, and can maintain the direction.

(A) is a top view of the piezoelectric ignition type gas burner which concerns on one Embodiment of this invention, (B) is an expanded sectional view of the principal part of a connection hose. It is sectional drawing of the piezoelectric ignition type gas burner of one Embodiment of this invention.

  Next, a piezoelectric ignition gas burner according to an embodiment of the present invention will be described with reference to the drawings. The following embodiment is a preferred specific example of the piezoelectric ignition type gas burner of the present invention, and may have various technically preferable limitations. However, the technical scope of the present invention is particularly limited to the present invention. Unless stated to limit the invention, it is not limited to these embodiments. In addition, the constituent elements in the embodiments shown below can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the embodiment described below does not limit the contents of the invention described in the claims.

  FIG. 1A is a plan view of a piezoelectric ignition gas burner according to an embodiment of the present invention, FIG. 1B is an enlarged cross-sectional view of a main part of a connection hose, and FIG. 2 is a piezoelectric according to an embodiment of the present invention. It is sectional drawing of an ignition type gas burner.

  In the figure, a piezoelectric ignition gas burner 1 includes a burner body 10 having a connecting portion 11 connected to a liquefied gas cylinder (not shown), a cylindrical crater unit 20 having an injection port 21 and a discharge electrode portion 22 near the tip. And a bellows-like connection hose portion 30 that connects the burner body 10 and the crater unit 20 and that can change the direction of the injection port 21 and bendable so as to maintain the direction.

  The burner main body 10 holds the connecting portion 11 and sets the communication state (opening degree) between the base portion 12 in which the supply path of the liquefied gas is disposed, and the supply passage 13 and the discharge passage 14 formed in the base portion 12. A valve portion 15 that adjusts the flow rate of the liquefied gas by adjusting, and an ignition operation portion 16 that is electrically connected to the discharge electrode portion 22 from the base portion 12 via the connection hose portion 30 and discharges.

  The base 12 is made of, for example, a pair of left and right halves of the same form manufactured by zinc die casting, and fastened to each other with screws or the like to form a hollow body. Further, the base 12 is mounted at the tip of a discharge passage 14 for supplying the liquefied gas downstream by adjusting the flow rate of the liquefied gas by the valve portion 15, and an ejection nozzle 17 that compresses and injects the liquefied gas, and a holder pipe 18. And a cylindrical air adjustment ring 19.

  The valve unit 15 uses a known dial type, and can arbitrarily adjust the flow rate of the liquefied gas within a range from the supply stop of the liquefied gas to the preset maximum flow rate, stepless or stepped. Any of the formulas can be adopted. When the valve unit 15 is opened, the liquefied gas accommodated in the liquefied gas cylinder is injected from the ejection nozzle 17 through the supply path 13, the valve section 15, and the discharge path 14.

  The ignition operation unit 16 includes a push-type operation button 16A held by the holder tube 18, a crimp ignition device 16B, and a lead wire 16C having one end connected to the crimp ignition device 16B.

  The piezoelectric ignition device 16B is held by the base 12 and is arranged in association with the operation button 16A. The piezoelectric ignition device 16B includes a piezoelectric element connected to the lead wire 16C and uses a known device that operates the piezoelectric element by impact.

  The holder pipe 18 is made of resin or metal and includes a lead-out path 18A for leading the liquefied gas ejected from the ejection nozzle 17 to the downstream side.

  The crater unit 20 has a substantially cylindrical shape with an opening at the tip, and the discharge electrode portion 22 is arranged on the axis. Further, one end of a lead wire 23 is connected to the discharge electrode portion 22.

  The connection hose portion 30 includes a base connection portion 31 that is detachably connected to one end on the outer peripheral side of the holder tube 18, a tip connection portion 32 that is detachably connected to the crater unit 30, and each connection portion 31. , 32 is detachably connected to both ends, and a bellows hose portion 33 is provided.

  The base connection portion 31 is detachably fixed to the outside of the holder tube 18 with a screw (not shown). The base connection portion 31 supports one end of the bellows hose portion 33 via a screw 34. Therefore, the base connection part 31 has the holder pipe 18 positioned inside the connection part with the bellows hose part 33, and a common contact (contact part) that can be electrically connected to the other end of the lead wire 16C therebetween. ) 35 is arranged.

  The tip connection portion 32 is connected to the other end of the bellows hose portion 33 via a screw 36. Further, a common contact (contact part) 37 for connecting the other end of the lead wire 23 is disposed on the axis of the tip connection part 32.

  Between the common contact 35 provided in the base connection part 31 and the common contact 37 provided in the tip connection part 32, both ends of the lead wire 38 arranged inside the bellows hose part 33 are connected. . Therefore, the connection hose portion 30 is replaceable with respect to the burner body 10 while easily securing the electrical connection relationship between the base end connection portion 31 and the holder tube 18 by the common contact 35. Similarly, the connection hose part 30 is replaceable with respect to the crater unit 20 while easily securing the electrical connection relationship between the tip connection part 32 and the crater unit 20 by the common contact 37.

  As shown in FIG. 1 (B), the bellows hose portion 33 is formed by connecting a ring member 33A having a substantially S-shaped cross section along the axial direction, and engaging with the adjacent ring member 33A. The part can be bent as an indirect part. Therefore, the entire length of the connection hose portion 30 can be set according to the number of connections of the ring member 33A, and can be arbitrarily exchanged including the radial shape of the crater unit 20 and the like. Further, a cotton thread 39 is provided between the adjacent ring members 33A in order to maintain airtightness between the inside and outside of the hose.

  In the above-described configuration, the valve unit 15 is adjusted to open so that the supply passage 13 and the discharge passage 14 communicate with each other. When the discharge electrode portion 22 is discharged, a flame can be injected from the injection port 21.

  Here, the operator can work by holding the liquefied gas cylinder. For example, the bellows hose part 33 of the connection hose part 30 can be used depending on the working environment and posture, or a situation such as a gap such as debris. Can be arbitrarily bent, and the direction of the injection port 21 can be changed.

  At this time, the bellows hose portion 33 can easily maintain a bent state even when it is not subjected to external force or is subjected to some external force (depending on the diameter or the like).

  Thus, in the piezoelectric ignition type gas burner 1 of the present invention, a cylindrical body having the burner body 10 having the connecting portion 11 connected to the liquefied gas cylinder, and the injection port 21 and the discharge electrode portion 22 near the tip. The crater unit 20 has a bellows-shaped connection hose portion 30 that connects the burner body 10 and the crater unit 20 and can change the direction of the injection port 21 and bendable so as to maintain the direction. Thus, the direction of the tip (injection port 21) of the crater unit 20 can be arbitrarily changed, and the direction can be maintained.

DESCRIPTION OF SYMBOLS 1 ... Piezoelectric ignition type gas burner 10 ... Burner main body 11 ... Connection part 16C ... Lead wire 20 ... Tinder unit 21 ... Injection port 22 ... Discharge electrode part 23 ... Lead wire 30 ... Connection hose part 33 ... Bellows hose part 35 ... Common contact (Contact part)
37 ... Common contact (contact part)

Claims (3)

A burner body having a connecting portion connected to the liquefied gas cylinder;
A cylindrical crater unit having an injection port and a discharge electrode near the tip;
A bellows-shaped connection hose portion that is flexible so as to connect between the burner body and the crater unit and to change the direction of the injection port and to maintain the direction;
A piezoelectric ignition type gas burner comprising: The burner body is
A base that holds the connecting portion and has a supply path for liquefied gas disposed therein;
A valve portion provided at the base and connected to the supply path to adjust the flow rate of the liquefied gas;
The piezoelectric ignition system according to claim 1, further comprising: an ignition operation unit that is electrically connected to the discharge electrode unit from the base unit via the connection hose unit and discharges the discharge electrode unit. Gas burner. The connection hose part is
A contact portion that is detachably attached to the base and capable of electrically connecting the ignition operation portion and the discharge electrode portion;
The piezoelectric ignition gas burner according to claim 1 or 2, wherein at least the connection hose portion having a different length with respect to the crater unit is replaceable.

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