Furnace end with pressure stabilizing device

Abstract

The utility model belongs to the technical field of combustion furnaces, and particularly relates to a furnace end with a pressure stabilizing device, which comprises a furnace end body and a fire distribution seat, a gas channel is arranged on the furnace end body, the pressure stabilizing device is arranged in the gas channel, the gas channel comprises a gas inlet section, a gas exhaust section and a mounting groove for mounting the pressure stabilizing device, and the gas inlet section and the gas exhaust section are communicated with each other. One end of the gas inlet section is provided with a connecting part connected with a gas bottle or a gas pipeline, one end of the gas exhaust section is communicated with the fire distribution seat, the pressure stabilizing device comprises a pressure valve and an elastic film, the pressure valve can seal the gas channel so as to limit circulation of gas in the gas channel, and one end of the pressure valve abuts against the elastic film; the elastic film drives the pressure valve to move to unseal the gas channel; the installation groove is sealed through the elastic film, a transition cavity is formed, the gas inlet section and the exhaust section are communicated through the transition cavity, the pressure valve is arranged on the gas inlet section, and the furnace end with the pressure stabilizing device saves gas and facilitates sufficient combustion of the gas.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustion furnaces, and particularly relates to a burner head with a voltage stabilizing device. Background Art

[0002] A combustion furnace, also known as a gas stove, liquefied petroleum gas stove, coal gas stove, or natural gas stove, refers to a kitchen appliance that directly heats with gaseous fuels such as liquefied petroleum gas (liquid), artificial coal gas, and natural gas. The burner head is an important component of the combustion furnace.

[0003] When a gas stove is in use, gas is transported to the burner head and mixed with air in the burner head. The mixed gas is ignited by an ignition device. For example, a household gas burner head device disclosed in Chinese Utility Model Patent CN202023206521.2 includes a burner head base and an outer ring fire cover. A circle of outer ring gas mixing grooves is provided on the top of the burner head base. The outer ring gas mixing grooves include an inner wall ring body and an outer wall ring body. The outer wall ring body includes a vertical wall in the middle and lower sections. The top end of the vertical wall extends outward with an inclined wall. The top end of the inclined wall extends inward with a gas guiding inner ring eaves wall. A groove is formed between the gas guiding inner ring eaves wall and the inclined wall. The gas guiding inner ring eaves wall and the inclined wall form an outer convex ring at the top end of the outer wall ring body; the vertical wall, the inclined wall, and the gas guiding inner ring eaves wall are integrally formed.

[0004] To facilitate the use of users, many gas stoves are supplied with gas from a gas cylinder. During use, the gas is ejected by the air pressure in the gas cylinder. When the air pressure in the gas cylinder is too high, the gas will be ejected quickly, affecting the full mixing of the gas with air and the full combustion of the gas. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a burner head with a voltage stabilizing device that saves gas and is conducive to the full combustion of gas.

[0006] The purpose of the utility model is realized as follows:

[0007] A burner head with a voltage stabilizing device includes a burner head body and a fire distributing base. A gas passage is provided on the burner head body. A voltage stabilizing device is provided in the gas passage. The gas passage includes an intake section, an exhaust section, and an installation groove for installing the voltage stabilizing device. One end of the intake section is provided with a connection part for connecting a gas cylinder or a gas pipeline. One end of the exhaust section is communicated with the fire distributing base. The voltage stabilizing device includes a pressure valve and an elastic membrane. The pressure valve can seal the gas passage to limit the flow of gas in the gas passage. One end of the pressure valve abuts against the elastic membrane, and the elastic membrane drives the pressure valve to move to release the seal of the gas passage;

[0008] The elastic membrane seals the installation groove and forms a transition cavity. The air inlet section and the air outlet section are communicated through the transition cavity, and a pressure valve is arranged on the air inlet section; when the air pressure in the gas passage is too high, the elastic membrane can be deformed and the pressure valve can be reset, so that the air inlet section and the transition cavity are relatively sealed through the pressure valve.

[0009] The utility model is further arranged as follows: a gland is detachably arranged on the burner body, and a sealing convex edge is arranged on the periphery of the installation groove. The gland presses the periphery of the elastic membrane against the sealing convex edge to form the transition cavity.

[0010] The utility model is further arranged as follows: an elastic member for driving the elastic membrane to reset is arranged on the gland. The elastic member abuts against the elastic membrane and drives the elastic membrane to abut against the pressure valve.

[0011] The utility model is further arranged as follows: an adjusting member is arranged on the gland. The adjusting member controls the deformation amount of the elastic member, so as to adjust the relative acting force between the elastic membrane and the pressure valve.

[0012] The utility model is further arranged as follows: a mounting seat is arranged on the elastic membrane. The mounting seat is slidably arranged on the gland. The elastic member abuts against the mounting seat and drives the elastic membrane to press tightly against the pressure valve through the mounting seat.

[0013] The utility model is further arranged as follows: a mounting hole is arranged at the bottom or the side wall of the installation groove. The pressure valve is arranged in the mounting hole, and an end cap is detachably arranged in the mounting hole. The end cap can prevent the pressure valve from detaching from the mounting hole, and an air leakage hole is arranged on the end cap. The pressure valve passes through the air leakage hole and abuts against the elastic membrane.

[0014] The utility model is further arranged as follows: the pressure valve comprises a valve rod and a return spring. A sealing ring and a pressing block for sealing the gas passage are arranged on the valve rod. The valve rod passes through the air leakage hole and is connected with the pressing block, and the return spring drives the valve rod to reset and enables the pressing block to press tightly against the elastic membrane.

[0015] The utility model is further arranged as follows: a positioning groove is arranged at one end of the air leakage hole. A conical positioning protrusion adapted to the positioning groove is arranged on the pressing block. The elastic membrane drives the pressure valve to reset and enables the positioning protrusion to be matched with the positioning groove, and an exhaust groove for allowing the gas to pass through is arranged on the side surface of the positioning groove.

[0016] The utility model is further arranged as follows: a nozzle is detachably arranged at the end of the air outlet section. A gas mixing cavity and a flow dividing cavity are arranged in the fire distributing seat. An arc-shaped flow guiding plate is arranged in the middle of the flow dividing cavity. The nozzle is arranged in the gas mixing cavity and faces the flow guiding plate. The gas is sprayed to the flow guiding plate through the nozzle and is dispersed to the periphery of the flow dividing cavity through the flow guiding plate.

[0017] The advantages of the utility model compared with the prior art are:

[0018] 1. In the present utility model, the maximum air pressure in the transition chamber and the exhaust section is restricted by a pressure valve and an elastic membrane. When the air pressure in the transition chamber is too high, the pressure valve can relatively seal the intake section and the transition chamber. Then, the gas in the transition chamber is discharged through the exhaust section, the air pressure in the transition chamber will decrease, and the intake section and the transition chamber can be reconnected. This structure can prevent the excessive air pressure when the gas enters the sub-fire seat during use from affecting the sufficient mixing of gas and air, which is beneficial to the sufficient combustion of gas, reduces the waste of gas, and is conducive to saving gas.

[0019] 2. The setting of the gland in the present utility model facilitates the installation and disassembly of the elastic membrane, and is convenient for the assembly, disassembly and maintenance of the burner head. The setting of the sealing flange facilitates the fixed installation of the elastic membrane and is beneficial to the sealing of the transition chamber; the setting of the elastic member is beneficial to increasing the damping of the elastic membrane, preventing the elastic membrane from being damaged due to excessive deformation, or the connection position between the elastic membrane and the sealing flange from loosening, resulting in gas leakage.

[0020] 3. The setting of the adjusting member in the present utility model is beneficial for the manufacturer and user to adjust the maximum air pressure in the transition chamber, which is convenient for setting and use; the setting of the mounting seat is beneficial to dispersing the force on the elastic membrane, can prevent the elastic member from being damaged, and is beneficial to the stable force of the pressure valve, avoiding the inclination of the pressure valve from affecting the sealing of the gas passage by the pressure valve.

[0021] 4. The setting of the end cap in the present utility model facilitates the disassembly and installation of the pressure valve, and is convenient for the assembly and production of the burner head. The air vent not only can connect the intake section and the transition chamber, but also can guide the movement of the pressure valve; the setting of the pressing block can increase the contact area between the pressure valve and the elastic membrane, preventing the elastic membrane from being damaged due to excessive local force; the setting of the conical positioning protrusion and the positioning groove facilitates the automatic positioning of the pressing block during movement, preventing the pressing block from being skewed or misaligned during use. The setting of the exhaust groove can prevent the pressing block from sealing the mounting hole, which is convenient for the user to use.

[0022] 5. The setting of the nozzle in the present utility model can prevent the exhaust section from exhausting too fast, resulting in too low air pressure in the transition chamber. The detachable nozzle is beneficial for the user to replace the jet nozzle to adjust the exhaust rate of the burner head body. The arc-shaped deflector plate facilitates the rapid dispersion of gas and the uniform ejection of flame from the sub-fire seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is an exploded view of the present utility model;

[0025] Figure 3 is one of the sectional views of the present utility model;

[0026] Figure 4 is another sectional view of the present utility model;

[0027] Figure 5 is a cross-sectional view of the present utility model after removing the flame distributor base;

[0028] Figure 6 is a schematic structural view of the burner head body of the present utility model;

[0029] Figure 7 is one of the cross-sectional views of the burner head body of the present utility model;

[0030] Figure 8 is another cross-sectional view of the burner head body of the present utility model;

[0031] Figure 9 is yet another cross-sectional view of the burner head body of the present utility model;

[0032] Figure 10 is a cross-sectional view of the flame distributor base of the present utility model;

[0033] Figure 11 is a cross-sectional view of the mounting structure of the gland, adjusting member, elastic member and mounting seat of the present utility model;

[0034] Figure 12 is a cross-sectional view of the mounting structure of the pressure valve and the end cap of the present utility model;

[0035] Figure 13 is a cross-sectional view of the end cap of the present utility model.

[0036] Meanings of the reference numerals in the figures: 1 - burner head body; 11 - intake section; 12 - transition cavity; 13 - exhaust section; 14 - mounting hole; 15 - sealing flange; 16 - control groove; 17 - air outlet groove; 111 - connecting portion; 2 - flame distributor base; 21 - gas mixing cavity; 22 - flow dividing cavity; 211 - gas mixing hole; 221 - flow guiding plate; 3 - control switch; 4 - gland; 41 - sliding groove; 42 - pressing flange; 5 - voltage stabilizing device; 51 - pressure valve; 52 - elastic membrane; 53 - pressing block; 54 - end cap; 511 - valve stem; 512 - sealing ring; 513 - return spring; 514 - annular groove; 515 - mounting protrusion;

[0037] 531 - positioning protrusion; 541 - air vent hole; 542 - sealing inclined surface; 543 - positioning groove; 544 - exhaust groove; 6 - elastic member; 7 - mounting seat; 71 - placement groove; 8 - nozzle; 9 - adjusting member; 91 - driving block. Detailed implementation manners

[0038] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0039] See Figures 1 to 13As shown in the figure, a burner head with a voltage stabilizing device includes a burner head body 1 and a flame dividing base 2. A gas passage is provided on the burner head body 1, and a voltage stabilizing device 5 is provided in the gas passage. The gas passage includes an intake section 11, an exhaust section 13, and an installation groove for installing the voltage stabilizing device 5. One end of the intake section 11 is provided with a connection portion 111 for connecting a gas cylinder or a gas pipeline. One end of the exhaust section 13 is communicated with the flame dividing base 2. The voltage stabilizing device 5 includes a pressure valve 51 and an elastic membrane 52. The pressure valve 51 can seal the gas passage to limit the flow of gas in the gas passage. One end of the pressure valve 51 abuts against the elastic membrane 52, and the elastic membrane 52 drives the pressure valve 51 to move to release the seal of the gas passage.

[0040] The elastic membrane 52 seals the installation groove and forms a transition cavity 12. The intake section 11 and the exhaust section 13 are communicated through the transition cavity 12. The pressure valve 51 is arranged on the intake section 11. When the air pressure in the gas passage is too high, the elastic membrane 52 can be deformed and the pressure valve 51 can be reset, so as to relatively seal the intake section 11 and the transition cavity 12 through the pressure valve 51. In this structure, the maximum air pressure in the transition cavity 12 and the exhaust section 13 is limited by the pressure valve 51 and the elastic membrane 52. When the air pressure in the transition cavity 12 is too high, the pressure valve 51 can relatively seal the intake section 11 and the transition cavity 12. Then, the gas in the transition cavity 12 is discharged through the exhaust section 13, and the air pressure in the transition cavity 12 will decrease, and the intake section 11 and the transition cavity 12 can be reconnected. This structure can avoid the excessive air pressure when the gas enters the flame dividing base 2 during use, which affects the full mixing of gas and air, is conducive to the full combustion of gas, reduces the waste of gas, and is conducive to saving gas.

[0041] A control groove 16 is provided on the exhaust section 13, and a control switch 3 is arranged in the control groove 16. The control switch 3 can control the sealing of the exhaust section 13 to limit the discharge of gas from the exhaust section 13.

[0042] In the present utility model, an air outlet groove 17 is provided at the end of the exhaust section 13, and a nozzle 8 is detachably arranged in the air outlet groove 17. A gas mixing cavity 21 and a flow dividing cavity 22 are arranged in the flame dividing base 2. A plurality of gas mixing holes 211 are arranged on the side wall of the gas mixing cavity 21, and air enters the gas mixing cavity 21 through the gas mixing holes 211. An arc-shaped guide plate 221 is arranged in the middle of the flow dividing cavity 22. The nozzle 8 is arranged in the gas mixing cavity 21 and faces the guide plate 221. The gas is sprayed onto the guide plate 221 through the nozzle 8 and is dispersed to the periphery of the flow dividing cavity 22 through the guide plate 221. The arrangement of the nozzle 8 can avoid the too low air pressure in the transition cavity 12 caused by the too fast exhaust of the exhaust section 13, and the detachably arranged nozzle 8 is beneficial for the user to replace the jet nozzle to adjust the exhaust rate of the burner head body 1. The arc-shaped guide plate 221 is convenient for the rapid dispersion of gas and is convenient for the uniform spraying of the flame from the flame dividing base 2.

[0043] An installation hole 14 is provided at the bottom or side wall of the installation groove. The pressure valve 51 is disposed in the installation hole 14, and a end cap 54 is detachably arranged in the installation hole 14. The end cap 54 can prevent the pressure valve 51 from disengaging from the installation hole 14. An air vent hole 541 is provided on the end cap 54. The pressure valve 51 passes through the air vent hole 541 and abuts against the elastic membrane 52. The setting of the end cap 54 facilitates the disassembly and installation of the pressure valve 51, which is convenient for the assembly and production of the burner head. Moreover, the air vent hole 541 can not only communicate the intake section 11 and the transition chamber 12, but also guide the movement of the pressure valve 51.

[0044] In the utility model, the pressure valve 51 includes a valve stem 511 and a return spring 513. A sealing ring 512 and a pressing block 53 for sealing the gas passage are arranged on the valve stem 511. The valve stem 511 passes through the air vent hole 541 and is connected to the pressing block 53. The return spring 513 drives the valve stem 511 to reset and makes the pressing block 53 tightly abut against the elastic membrane 52. The setting of the pressing block 53 can increase the contact area between the pressure valve 51 and the elastic membrane 52, avoiding damage to the elastic membrane 52 due to excessive local stress.

[0045] In this embodiment, an annular groove 514 for installing the sealing ring 512 is arranged on the valve stem 511. An installation protrusion 515 is arranged on the valve stem 511. The installation protrusion 515 passes through the air vent hole 541 and is connected to the pressing block 53. A conical sealing inclined surface 542 is arranged on the side of the air vent hole 541 away from the pressing block 53. The return spring 513 drives the valve stem 511 to reset and makes the sealing ring 512 tightly abut against the sealing inclined surface 542, thereby sealing the air vent hole 541.

[0046] A positioning groove 543 is arranged at one end of the air vent hole 541. A conical positioning protrusion 531 adapted to the positioning groove 543 is arranged on the pressing block 53. The elastic membrane 52 drives the pressure valve 51 to reset and makes the positioning protrusion 531 cooperate with the positioning groove 543. The setting of the conical positioning protrusion 531 and the positioning groove 543 facilitates the automatic positioning of the pressing block 53 during movement, avoiding deflection or misalignment of the pressing block 53 during use. An exhaust groove 544 for allowing gas to pass through is arranged on the side of the positioning groove 543. The setting of the exhaust groove 544 can prevent the pressing block 53 from sealing the installation hole 14, facilitating the use by the user.

[0047] In the utility model, the end cap 54 is threadedly connected to the installation hole 14. The exhaust groove 544 is a strip-shaped groove connecting the positioning groove 543 and the side wall of the end cap 54. The exhaust groove 544 on the side of the positioning groove 543 is arranged in a straight line shape or a cross shape. The user can insert a tool such as a screwdriver into the exhaust groove 544 and control the relative rotation of the end cap 54 and the burner head body 1 through the exhaust groove 544, thereby disassembling or installing the pressure valve 51.

[0048] A gland 4 is detachably arranged on the burner head body 1, and a sealing flange 15 is arranged on the outer periphery of the installation groove. The gland 4 presses the outer periphery of the elastic membrane 52 against the sealing flange 15 to form the transition cavity 12. The arrangement of the gland 4 facilitates the installation and disassembly of the elastic membrane 52, and is convenient for the assembly, disassembly and maintenance of the burner head. The arrangement of the sealing flange 15 facilitates the fixed installation of the elastic membrane 52 and is beneficial to the sealing of the transition cavity 12. In this embodiment, it is preferably that the gland 4 is provided with a pressing flange 42 corresponding to the sealing flange 15, and the pressing flange 42 drives the outer periphery of the elastic membrane 52 to be pressed against the sealing flange 15, which is beneficial to the stable installation of the elastic membrane 52.

[0049] In the present utility model, an elastic member 6 for driving the elastic membrane 52 to reset is arranged on the gland 4. The elastic member 6 abuts against the elastic membrane 52 and drives the elastic membrane 52 to abut against the pressure valve 51. The arrangement of the elastic member 6 is beneficial to increasing the damping of the elastic membrane 52, avoiding excessive deformation of the elastic membrane 52 resulting in damage to the elastic membrane 52, or loosening of the connection position between the elastic membrane 52 and the sealing flange 15 resulting in gas leakage.

[0050] An installation seat 7 is arranged on the elastic membrane 52, and a sliding groove 41 is arranged on the gland 4. The installation seat 7 is slidably arranged in the sliding groove 41. An accommodation groove 71 adapted to the elastic member 6 is arranged in the installation seat 7. The elastic member 6 abuts against the installation seat 7 and drives the elastic membrane 52 to be pressed against the pressure valve 51 through the installation seat 7. The arrangement of the installation seat 7 is beneficial to dispersing the force on the elastic membrane 52, can avoid damage to the elastic member 6, and is beneficial to the stable force on the pressure valve 51, avoiding the inclination of the pressure valve 51 affecting the sealing of the gas passage by the pressure valve 51.

[0051] Preferably, an adjusting member 9 is arranged on the gland 4. The adjusting member 9 controls the deformation amount of the elastic member 6, thereby adjusting the relative acting force between the elastic membrane 52 and the pressure valve 51. The arrangement of the adjusting member 9 is beneficial for the producer or user to adjust the maximum air pressure in the transition cavity 12, which is convenient for setting and use.

[0052] In this embodiment, the elastic member 6 is composed of a plurality of elastic sheets. A transmission block 91 adapted to the elastic member 6 is arranged on the gland 4. The transmission block 91 and the installation seat 7 are respectively arranged at both ends of the elastic member 6. The adjusting member 9 is threadedly connected to the gland 4. One end of the adjusting member 9 penetrates into the gland 4 and abuts against the transmission block 91, thereby driving the elastic member 6 to deform through the transmission block 91.

[0053] The above embodiments are only the preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A burner with a voltage stabilizing device, comprising a burner body (1) and a flame distributor (2), wherein a gas channel is provided on the burner body (1), and characterized in that: A pressure stabilizing device (5) is provided in the gas channel, the gas channel comprising an intake section (11), an exhaust section (13) and an installation groove for installing the pressure stabilizing device (5); one end of the intake section (11) is provided with a connection portion (111) for connecting to a gas bottle or a gas pipeline; one end of the exhaust section (13) is communicated with the ignition seat (2); the pressure stabilizing device (5) comprises a pressure valve (51) and an elastic membrane (52); the pressure valve (51) can seal the gas channel so as to limit the flow of gas in the gas channel; one end of the pressure valve (51) abuts against the elastic membrane (52); the elastic membrane (52) drives the pressure valve (51) to move so as to release the seal of the gas channel; The elastic membrane (52) seals the installation groove and forms a transition cavity (12); the air intake section (11) and the exhaust section (13) are connected via the transition cavity (12); the pressure valve (51) is arranged on the air intake section (11); excessive air pressure in the gas channel can cause the elastic membrane (52) to deform and reset the pressure valve (51), thereby relatively sealing the air intake section (11) and the transition cavity (12) via the pressure valve (51).

2. A furnace head with a voltage stabilizing device according to claim 1, characterized in that: The furnace head body (1) is detachably provided with a pressure cover (4), and the outer periphery of the mounting groove is provided with a sealing convex edge (15). The pressure cover (4) presses the outer periphery of the elastic membrane (52) against the sealing convex edge (15) to form the transition cavity (12).

3. A furnace head with a voltage stabilizing device according to claim 2, characterized in that: The pressure cover (4) is provided with an elastic member (6) for driving the elastic membrane (52) to return to its original position. The elastic member (6) abuts against the elastic membrane (52) and drives the elastic membrane (52) to abut against the pressure valve (51).

4. A furnace head with a voltage stabilizing device according to claim 3, characterized in that: The gland (4) is provided with an adjusting member (9), which controls the deformation of the elastic member (6), thereby adjusting the relative force between the elastic membrane (52) and the pressure valve (51).

5. The burner head with a voltage stabilizing device according to claim 3, characterized in that: The elastic membrane (52) is provided with a mounting seat (7), the mounting seat (7) is slidably arranged on the pressure cover (4), the elastic member (6) abuts against the mounting seat (7) and drives the elastic membrane (52) to abut against the pressure valve (51) through the mounting seat (7).

6. The burner head with a voltage stabilizing device according to claim 1, characterized in that: A mounting hole (14) is provided at the bottom or on the side wall of the mounting groove, the pressure valve (51) is arranged in the mounting hole (14), and a detachable end cap (54) is provided in the mounting hole (14), the end cap (54) can prevent the pressure valve (51) from being separated from the mounting hole (14), and an air leakage hole (541) is provided on the end cap (54), the pressure valve (51) passes through the air leakage hole (541) and abuts against the elastic membrane (52).

7. The burner head with a voltage stabilizing device according to claim 6, characterized in that: The pressure valve (51) comprises a valve stem (511) and a return spring (513); a sealing ring (512) for sealing a gas passage and a pressure block (53) are arranged on the valve stem (511); the valve stem (511) passes through the air leakage hole (541) and is connected to the pressure block (53); and the return spring (513) drives the valve stem (511) to return and causes the pressure block (53) to press against the elastic membrane (52).

8. The burner head with a voltage stabilizing device according to claim 7, characterized in that: A positioning groove (543) is provided at one end of the air leakage hole (541), and a conical positioning protrusion (531) adapted to the positioning groove (543) is provided on the pressure block (53). The elastic membrane (52) drives the pressure valve (51) to reset and makes the positioning protrusion (531) cooperate with the positioning groove (543), and an exhaust groove (544) for gas to pass through is provided on the side of the positioning groove (543).

9. The furnace head with a voltage stabilizing device according to claim 1, characterized in that: The end of the exhaust section (13) is detachably provided with a nozzle (8), the fire splitter seat (2) is provided with a gas mixing chamber (21) and a flow splitter chamber (22), the middle of the flow splitter chamber (22) is provided with an arc-shaped guide plate (221), the nozzle (8) is arranged in the gas mixing chamber (21) and faces the guide plate (221), the gas is sprayed toward the guide plate (221) through the nozzle (8), and dispersed toward the periphery of the flow splitter chamber (22) through the guide plate (221).

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