KR101730248B1 - Gas burner - Google Patents

Abstract

The present invention relates to a ring-shaped flow tube having nozzles mounted at regular intervals and a gas burner for a business which is configured to supply gas through respective gas injection units corresponding thereto.
The present invention relates to a gas burner for a workplace configured to be able to perform cooking by introducing or interrupting a gas from a main gas pipe in conjunction with a knob operation, the gas burner comprising: an operation knob provided at a front of the front panel and rotating; A ring-shaped flow tube for introducing gas from the valve body, a gas injection unit arranged in a circular shape on the ring-shaped flow tube, and a plurality of gas injection units And the first and second brackets.

Description

Gas Burner for Commercial Use {GAS BURNER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gas burner for a business, and more particularly, to a gas-type burner configured to supply a gas through a ring-shaped distribution pipe having nozzles mounted thereon at regular intervals and corresponding gas injection units.

Generally, in the case of a gas burner used in a kitchen of a business such as a restaurant, a separate portable igniter is used to prevent burns, so that ignition is performed even at a relatively long distance, or a self-ignition means is provided at one side of the burner do.

The self-ignition method of the gas burner can be classified into an impact type using a piezoelectric element and an electric type using an ignition transformer.

In the case of the piezoelectric type, when the gas is blown by rotating the cock handle of the gas appliance, a high voltage is generated by applying an impact to the piezoelectric element, and a spark is generated in the spark plug, In the case of the electric type using the ignition transformer, the ignition flame is continuously discharged during one operation of the cock handle to thereby stably ignite the gas and reduce the gas loss.

However, the above-described piezoelectric type ignition is advantageous in that it can be used semi-permanently because there is no consumable item. On the other hand, there is a technical difficulty that the gas can not be supplied to the burner side precisely in accordance with the timing, Even in the case of the electric type, although each ignition transformer is provided for each burner, it is dependent on the fine spark, and the ignition failure rate due to the assembly failure is high, which is inconvenient to repeatedly perform the ignition operation several times.

Regarding the ignition method of the gas burner, the Japanese Patent No. 0242327 discloses a gas burner ignition device capable of preventing discharge noise and improving ignition performance without requiring a discharge distance by ignition of gas by a heater heating method Patent Document No. 0674409 discloses a structure in which the gas pressure of the sub-low pressure and the medium pressure applied from the gas supply portion can be changed to an appropriate range, thereby preventing waste due to gas leakage, Which is capable of promoting safety of the gas burner.

However, in the conventional art as described above, the ignition of the burner by the ignition device can be safely and easily performed, but the ignition failure due to the weakening of the spark is caused. In the process of supplying the gas from the main gas pipe to the burner side, .

Moreover, since the phenomenon that the gas nozzle of the burner is clogged frequently occurs, the efficiency is lowered and the consumption amount by the leaking gas is increased.

Registered Patent No. 0242327 (Registered November 11, 1999), Title of the Invention: Ignition Device for Gas Burner Registered Patent No. 0674409 (Registered on January 19, 2007), Title of invention: Gas burner for automatic ignition type business. Open No. 2008-0097844 (published on November 6, 2008), Title of the invention: Nozzle assembly structure of gas burner. Patent Publication No. 2009-0078581 (published on Jul. 20, 2009), Title of invention: Salt tool tanks and gas burners of gas burners. Registered Patent No. 0988836 (Registered on October 13, 2010), Name of invention: Gas burner for business use. Registered Patent No. 1364728 (Registered Feb. 12, 2014), Title of invention: Gas burner ignition device for business use.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and a method for supplying a gas supplied from a main gas pipe through a valve body to a ring- In which the gas injection unit is disposed on the nozzle of the gas burner, so that the gas supply can be smoothly performed and the ignition failure can be prevented in advance.

In addition, the present invention provides a gas burner for a business which can reduce the amount of exhaust gas by preventing a clogging phenomenon as in the past by forming a long portion in which gas is injected in the form of a continuous slit.

According to an aspect of the present invention, there is provided a gas burner for a business, the gas burner being configured to be able to perform cooking by introducing or interrupting gas from a main gas pipe in conjunction with a knob operation, the gas burner comprising: A valve body mounted on the main gas pipe for supplying or blocking gas according to the operation of the operation knob, a ring-shaped flow tube for introducing gas from the valve body, a gas injection unit arranged circularly on the ring- And a first and a second brackets for holding and fixing the respective gas injection units, wherein the valve body includes a main shaft which is elastically biased in the forward and reverse directions according to the operation of the operating knob, A ball fixed to the tip end and an interlocking shaft for introducing or interrupting the gas by the rotation of the ball Wherein the ring-shaped flow tube is bound to a rear end portion of the valve body, and at the same time, the nozzle is mounted at a predetermined interval over the entire circumference of the upper surface, and the gas injection unit includes a cylindrical body and a fan- Wherein the first bracket is divided into an inner ring and an outer ring to hold a cylindrical body of the gas injection unit therebetween by a fixing screw, and the second bracket is provided with projections And a flange is formed to support the cylindrical body of the gas injection unit .

A slit is formed at the upper end of the fan-shaped body constituting the gas injection unit so as to face each other in the longitudinal direction, and a spacing plate is interposed between the slits.

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In the present invention having the above-described characteristics, since gas can be supplied from a normal valve body mounted on the main gas pipe into the ring-shaped flow pipe, and then supplied through the respective nozzles and the injection unit, noise can be suppressed As a matter of course, the gas supply is performed smoothly, so that the ignition can be performed more stably.

In addition, as in the prior art, the gas is not clogged due to the structure in which the narrow and long slits are formed so as to escape from the small-hole-shaped injection hole formed in the burner side, so that the heating efficiency can be increased, Can be reduced.

1 is a perspective view showing a general office gas burner,
Fig. 2 is a plan view of Fig. 1,
3 is a perspective view for explaining a connection structure of an operation knob and a gas opening / closing valve,
4 is an assembled sectional view of the gas knob and the operation knob shown in Fig. 3, Fig.
5 is a plan view schematically showing a gas burner for a business according to the present invention,
6 is a view showing a path through which gas is supplied from the valve body to the gas injection unit,
Fig. 7 is an exploded perspective view of the recess shown in Fig. 6,
8 is a planar view showing an enlarged view of a part of the gas injection unit,
9 is an exploded perspective view showing the internal configuration of the valve body,
10 is an assembled sectional view of Fig. 9,
11 is a principal perspective view showing a configuration of a ball operated by an interlocking shaft,
12A and 12B are diagrams for explaining the operating relationship of the ball,
Figs. 13A and 13B are a main constituent diagram for explaining the interlocking relationship of the main shaft and the operating piece,
Figs. 14A and 14B are diagrams schematically showing the relationship between the engagement protrusion formed on the main shaft and the stepped groove formed in the operating piece. Fig.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 are views for explaining an example of a general-use gas burner for a business use. As shown in these drawings, a burner 12 and a burner 12 are provided in a case 11, The main gas pipe 13 is horizontally mounted on the front of the case 11 in a state where the main gas pipes 13 are arranged in the respective positions and the gas is connected to the gas bombs .

In the case of the burner 12, two ordinary large and small round burners are arranged concentrically. Each of the burners 12 is provided with a gas inlet 12a. The main gas pipe 13, The gas pipe 12 is constituted by connecting the vertical connecting pipe 14, the gas opening / closing valve 20, the 90 ° elbow 15 and the horizontal connecting pipe 16 in order.

2, threaded portions 14a and 14b are formed on both sides of the vertical connection pipe 14 so that the main gas pipe 13 and the gas opening and closing valve 20 are connected to each other. The valve operating shaft 21 is mounted in a direction perpendicular to the direction of the arrows 20 so that an internal driving component (not shown) can be operated to open and close the flow path.

A 90 ° elbow 15 is mounted on the upper side of the gas opening and closing valve 20 and is connected to a gas inlet 12a of the burner 12 through a horizontal connecting pipe 16 and an air adjusting opening 17, Or the like.

The valve operating shaft 21 of the gas opening and closing valve 20 is coupled to the operating knob 30 disposed in the horizontal direction toward the front of the case 11 and disposed outside the case 11, Closing valve 30 is coupled to the valve operating shaft 21 of the gas opening / closing valve 20 through the case 11 and the handle 11 and the engaging portion 32, 30) can be rotated in the forward and reverse directions.

An engaging hole 33a having a shape corresponding to the sectional shape of the valve operating shaft 21 is formed in the engaging portion 32 of the operating knob 30 so that the bracket 33 penetrating the valve operating shaft 21 is fixed And a nut 34 is fastened to the threaded portion 21a passing through the bracket 33. [

An assembling hole 36 for screwing the nut 34 is formed at the center of the operating knob 30 and the outer mouth portion of the assembling hole 36 is detachably attached to the cover 35. [ So that the appearance of the operation knob 30 can be arranged.

The gas opening / closing valve 20 having such a structure includes a vertical connecting pipe 14 mounted on the main gas pipe 13 and forms a gas communication path by the 90 ° elbow 15 and the horizontal connecting pipe 16 Therefore, the cost increase factor and the assembling workability are greatly deteriorated due to the complicated connection parts.

Further, in the case of the gas burner having the above-described structure, not only the ignition failure occurs but also the noise is generated in the process of supplying the gas from the main gas pipe to the burner side, and the gas nozzle of the burner is frequently clogged The efficiency is reduced, and the amount of consumption due to the leaking gas is inevitably increased.

5 to 14A and 14B, the gas burner for business use according to the present invention includes a normal operation knob 130 installed and rotating in front of the front panel H, A ring-shaped flow tube 160 for introducing gas from the valve body 140, and a ring-shaped flow tube 160 for supplying gas from the valve body 140. The ring- Each gas injection unit 170 arranged in a circle on the flow pipe 160 and first and second brackets 180A and 180B for fixing these gas injection units 160. [

Since the operation knob 130 has a function of ignition and gas supply by pivoting and pushing lightly at the time of ignition as in the conventional configuration, detailed description thereof will be omitted.

The valve body 140 includes a main shaft 141 that elastically rotates in the forward and reverse directions by the operation of the operating knob 130 and a ball 142 fixed to the tip in cooperation with the main shaft 141 A flow port 144 mounted on the rear end of the valve body 140 for supplying a main gas to the burner side, And a branching mechanism 145 for supplying the residual gas to the burner side.

9 and 10, the valve body 140 is formed with an enlarged flange 146a at the tip end portion of a cylindrical shape and has a through hole 146b in the up and down direction near its rear end, A flat plate flange 146c and a flat plate flange 146d.

A normal micro switch (not shown) is mounted on the extension flange 146a of the valve body 140. The extension flange 146a is provided with an operation knob 130 mounted on the outside of the front case 147, And a main shaft 141 which operates in a reverse direction in an elastic direction is assembled to the main shaft 141. The main shaft 141 includes an insertion piece 148a for coupling the operation knob 130 to form a cutout groove 148b, (148c) are formed.

An operating piece 150 having a plurality of stepped grooves 149a is assembled to the outer peripheral surface of the main shaft 141 and the interlocking shaft 143 is connected via a washer 151 and a spring 152, A pair of O-rings 143a for preventing reverse flow of the gas is formed at the distal end of the interlocking shaft 143 so that the ball 142 located at the center of the through hole 146b of the valve body 140 is integrally formed Respectively.

With this configuration, the interlocking shaft 143 with the ball 142 mounted therein is housed in the valve body 140, and the washer 151 and the spring 152 are accommodated in the expansion flange 146a at one side, 141 are mounted and the operating piece 150 is fixed by the set screw 153, so that the assembled state can be maintained.

A flow port 144 for supplying a main gas is formed at the rear end of the valve body 140 and a finishing cap 154 and a fixing cap 155 are attached to the binding portion 146c on the upper side of the valve body 140 And a minute mechanism 145 for supplying the residual gas is fastened.

The flat flange 146d formed at the lower end of the valve body 140 is fixed to the main gas pipe P with the airtightness maintained via the connecting member 157 having the fitting piece 156a, As shown in FIGS. 12A and 12B, the vertical and horizontal flow holes 158a and 158b are formed in the ball 142 so as to communicate with each other.

The ring-shaped flow pipe 160 for introducing gas from the valve body 140 is connected to the flow port 144 formed at the rear end of the valve body 140 via the pipe 161, (162) are mounted at regular intervals over the entire circumference.

The gas supplied from the main gas pipe P can be supplied to the gas injection unit 170 side through the flow port 144 and the branching mechanism 145 of the valve body 140. [

The gas injection unit 170 is integrally formed with a cylindrical body 171a and a fan shaped body 171b and is arranged in a circular shape corresponding to each of the nozzles 162 mounted on the ring-shaped flow tube 160 have.

A separating plate 173 having a small cylindrical portion 172a is disposed at regular intervals on the upper end of the sector-shaped body 171b constituting the gas injection unit 170. The separating plate 173 is provided on both sides And a slit 172b formed so as to face each other along the longitudinal direction.

The first bracket 180A is divided into an inner ring 181a and an outer ring 181b to support the cylindrical body 171a of the gas injection unit 170 and to hold the cylindrical body 171a between the cylindrical bodies 171a The fixing screws 182 are tightened into the space formed in the outer ring 181a and the outer ring 181b.

The second bracket 180B has a protruding flange 183b formed on the flat plate 183a and fitted into the lower end of the cylindrical body 171a constituting the gas injection unit 170 so that the respective gas injection units 170 And a swash plate 181c is formed at the edge of the flat plate portion 181a so as to block external wind from flowing into the nozzle 162 mounted on the ring- .

The operation knob 130 is pressed against the extension flange 146a of the valve body 140 while the operation knob 130 is urged to press the operation knob 130 to perform burner ignition in a normal manner, (Not shown) mounted on the gas injection unit 170 and also generates a spark on the gas injection unit 170 side.

The gas is then introduced into the valve body 140 from the main gas pipe P by the rotation of the operating knob 130 and is simultaneously injected into the ring-shaped flow pipe 160 and the gas injection unit 170 to be ignited .

That is, when the operation knob 130 is pressed and rotated in the counterclockwise direction, the main shaft 141 rotates to rotate the ball 142 mounted on the end of the interlocking shaft 143, And the gas from the liquid P is supplied to the flow port 144 side through the vertical and horizontal flow holes 158a and 158b formed in the ball 142, respectively.

At this time, a part of the gas is injected into the ignition mechanism (not shown) provided on one side of the gas injection unit 170 via the distributor 145, and ignition occurs. Therefore, And the gas introduced into the ring-shaped flow tube 160 from the valve body 140 through the conduit 161 is injected upward by the respective nozzles 162.

Here, in the case of the operation knob 130, the interlocking shaft 143 is rotated while receiving the elastic force by the spring 152. However, when the user releases the pushing force of the operation knob 130, And a pair of engagement protrusions 148c formed on the main shaft 141 maintains a state in which it abuts the stepped groove 149a of the operating piece 150. [

In this state, in order to reduce the gas supply amount from the main gas pipe P for cooking or cooking to adjust the flame intensity, the main shaft 141 rotates by turning the operation knob 130 clockwise, The guide groove 148c moves along the stepped groove 149a of the operating member 150 fixed by the set screw 153 in a resilient manner.

Therefore, since a force capable of fully recognizing the stepwise operation state can be transmitted to the user's hand operating the operation knob 130, the amount of gas can be adjusted according to the stepwise position of the operation knob 130.

Meanwhile, the gas supplied to the ring-shaped flow pipe 160 is injected upward by the respective nozzles 162 and is simultaneously injected toward the outside along the inside of the cylindrical body 171a and the fan-shaped body 171b of the gas injection unit 170 Since the plurality of slits 172b are connected to each other by the spacing plate 173 mounted in the sector-shaped body 171b, gas supply can be smoothly performed and a reliable ignition state can be maintained .

As described above, since the gas is supplied from each of the nozzles and the gas injection unit in a state where the gas is introduced into the ring-shaped flow tube from the normal valve body mounted on the main gas pipe, noise generation can be suppressed The ignition can be stably performed because the gas supply is desired.

In addition, as in the prior art, the gas is not clogged due to a configuration in which the narrow and long slits are formed so as to escape from the small-hole-shaped injection hole formed on the burner side, so that the heating efficiency can be increased, It is possible to exert the effect of reducing the amount of the water.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

11: Case 12: Burner
12a: gas inlet 13: main gas pipe
14: Vertical connection pipe 14a, 14b:
15: 90 ° Elbow 16: Horizontal connector
17: air control valve 20: gas opening / closing valve
21: valve operating shaft 21a: threaded portion
30: Rotation knob 31: Handle portion
32: engaging portion 33: bracket
33a: coupling hole 34: nut
35: Cover 36: Assembly hole
140: valve body 141:
142: ball 143: interlocking shaft
143a: O-ring 144: Distribution box
145: Branch mechanism 1 46a: Extension flange
146b: through hole 146c:
146d: flat plate flange 147: front case
148a: insert piece 148b:
148c: a locking projection 149a: a stepped groove
150: Operation manual 151: Washer
152: spring 153: set screw
154: finishing cap 155: fixed cap
156a: fitting piece 157: connecting member
158a: Vertical flow ball 158b: Horizontal flow ball
160: ring-shaped distribution pipe 161:
162: nozzle 170: gas injection unit
171a: a cylindrical body 171b: a fan-shaped body
172a: cylindrical portion 172b: slit
173: spacing plate 180A: first bracket
180B: second bracket 181a: inner ring
181b: outer ring 182: fixing screw
183a: flat plate portion 183b: projecting flange
183c:

Claims (3)

A gas burner for a workplace configured to be able to perform cooking by introducing or interrupting a gas from a main gas pipe in conjunction with a knob operation,
A valve body 140 installed on the main gas pipe P for supplying or blocking gas according to the operation of the operation knob 130, A ring-shaped flow tube 160 for introducing gas from the valve body, a gas injection unit 170 arranged in a circular shape on the ring-shaped flow tube, first and second Brackets 180A and 180B,
The valve body 140 includes a main shaft 141 that elastically rotates in the forward and reverse directions according to the operation of the operation knob, a ball 142 fixed to the distal end in cooperation with the main shaft, And an interlocking shaft 143 for intercepting or interrupting the interlocking shaft 143,
The ring-shaped flow tube 160 is connected to the rear end of the valve body 140, and at the same time, the nozzles 162 are mounted at regular intervals over the entire circumference of the top surface,
The gas injection unit 170 is integrally formed with a cylindrical body 171a and a fan-shaped body 171b so as to correspond to the nozzles 162 on the ring-shaped flow tube,
The first bracket 180A is divided into an inner ring 181a and an outer ring 181b and holds the cylindrical body 171a of the gas injection unit 170 therebetween by a fixing screw 182, Wherein the second bracket (180B) is formed with a protruding flange (183b) fitted into the cylindrical body (171a) to support the cylindrical body of the gas injection unit. The gas injection unit according to claim 1, wherein a slit (172b) is formed at the upper end of the sector-shaped body (171b) constituting the gas injection unit (170) so as to face each other in the longitudinal direction, Wherein the gas burner is a gas burner. delete

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