CN218719154U

CN218719154U - Flameout protection gas valve

Info

Publication number: CN218719154U
Application number: CN202222607503.8U
Authority: CN
Inventors: 梁秋荣; 黎伟杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-24
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a flame-out protection gas valve, which comprises a valve body, valve body one side is equipped with the solenoid valve, the valve body corresponds solenoid valve position is equipped with the air inlet, be equipped with the valve pocket in the valve body, the valve pocket internal rotation is connected with the case subassembly, valve pocket one side is equipped with the gas outlet, the top surface of valve body is equipped with stretches into the last fixing bolt of valve pocket, the bottom surface is equipped with and stretches into the lower fixing bolt of valve pocket, go up fixing bolt with fixing bolt is in same axis down, go up fixing bolt down fixing bolt with case subassembly tip offsets, valve body one side is equipped with the ignition subassembly. The utility model provides an flameout protection gas valve makes things convenient for the case installation, is favorable to adjusting the valve core concentricity, effectively improves the efficiency of igniteing simultaneously.

Description

Flameout protection gas valve

Technical Field

The utility model relates to a gas accessory technical field, concretely relates to flame-out protection gas valve.

Background

The gas cooker controls the gas flow by using a gas valve so as to adjust the fire. Current gas valve has flame-out protection device usually, and flame-out protection device generally is thermocouple formula flame-out protection device, and wherein the thermocouple is installed in furnace end department, and the solenoid valve is installed on gas valve, solenoid valve and thermocouple electric connection: the gas valve is through opening the solenoid valve, and the gas can carry out the air feed to the furnace end, and after furnace end flame extinguishes, the temperature difference voltage that the thermocouple produced is little, and the solenoid valve outage resets, blocks up the gas valve to cut off the air feed.

The utility model patent CN217029963U discloses a take middling pressure valve of flame-out protection, including valve body and installation device, the valve body with installation device connects, the valve pocket has been seted up in the valve body, the valve body is located the position of valve pocket is equipped with the case that is used for the gaseous volume of control, the case rotates to be installed in the valve pocket.

The valve core of the utility model is locked in radial direction by the unidirectional locking piece, and the structure is not beneficial to the installation of the valve core and the adjustment of the concentricity of the valve core and the valve cavity, thus causing the blockage during the ignition; and the ignition efficiency is not high because an integrated ignition device is not provided.

SUMMERY OF THE UTILITY MODEL

In order to compensate the deficiencies existing in the prior art, the utility model provides a flame-out protection gas valve makes things convenient for the case installation, is favorable to adjusting the valve core concentricity, effectively improves the efficiency of igniteing simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a flame-out protection gas valve, includes the valve body, valve body one side is equipped with the solenoid valve, the valve body corresponds solenoid valve position is equipped with the air inlet, be equipped with the valve pocket in the valve body, the valve pocket internal rotation is connected with the case subassembly, valve pocket one side is equipped with the gas outlet, the top surface of valve body is equipped with and stretches into the last fixing bolt of valve pocket, the bottom surface is equipped with and stretches into the lower fixing bolt of valve pocket, go up fixing bolt with fixing bolt is in same axis down, go up fixing bolt down fixing bolt with case subassembly tip offsets, valve body one side is equipped with the subassembly of igniteing.

Further, the ignition assembly comprises an ignition needle support, an ignition needle, a piezoelectric igniter, an impact column and a first spring, the ignition needle support is fixedly connected to one side of the valve body, the ignition needle is arranged on the ignition needle support, the ignition needle is electrically connected with the piezoelectric igniter, a mounting groove is formed in the valve body and is arranged along the direction of a rotating tangent of the valve core assembly, the first spring abuts against the impact column and the piezoelectric igniter from head to tail in the mounting groove, a guide hole communicated with the valve cavity is formed in the bottom of the mounting groove, a shifting piece penetrating through the guide hole is connected to the bottom of the impact column, and a shifting block for shifting the shifting piece is arranged on the outer wall of the valve core assembly.

Furthermore, the top surface of the valve body is provided with an air inlet cavity connected with the electromagnetic valve and a top cover sealing the air inlet cavity, the upper fixing bolt is arranged in the air inlet cavity and provided with an axial air hole, the valve core assembly is provided with an air outlet channel communicated with the air outlet, and the outer wall of the valve core assembly is provided with a radial air hole corresponding to the axial air inlet.

Furthermore, a thimble and ejector rod mechanism is arranged in the air inlet cavity, one end of the thimble and ejector rod mechanism is abutted against a piston of the electromagnetic valve, the other end of the thimble and ejector rod mechanism extends out of the air inlet cavity, an axially moving pressing piece is connected outside the valve core assembly, the pressing piece is provided with a protruding portion, and the protruding portion is abutted against the extending end of the thimble and ejector rod mechanism.

Furthermore, the ejector pin and ejector rod mechanism comprises an ejector pin and an ejector rod, the ejector rod is Z-shaped, one angular end of the ejector rod is hinged in the air inlet cavity, and the ejector pin is slidably arranged on the wall of the air inlet cavity and sleeved with a second spring.

Furthermore, the valve element assembly comprises a core rod, a handle and a third spring, a fixing ring and a slot are arranged at one end, far away from the air outlet, of the core rod, an inserting block and a limiting ring are arranged at one end of the handle, the inserting block is inserted into the slot, the third spring is arranged between the fixing ring and the limiting ring, and the pressing piece is arranged between the third spring and the limiting ring.

Furthermore, a shifting block fixing piece is sleeved on the inserting block, and the shifting block is arranged on the shifting block fixing piece.

Furthermore, the end part of the core rod close to the air outlet is spherical, and the middle part of the core rod is provided with a plurality of core rod rubber gaskets for sealing the valve cavity.

Furthermore, the gas outlet is connected with a gas outlet nozzle, and the end part of the gas outlet nozzle is provided with a flap.

Further, bolt rubber mats are arranged between the upper fixing bolt and the valve core assembly and between the lower fixing bolt and the valve core assembly.

Furthermore, the valve body adopts a straight top structure, and the electromagnetic valve can be far away from a high-temperature area of the furnace head after being installed.

Compared with the prior art, the utility model discloses following beneficial technological effect has:

the utility model discloses a flame-out protection gas valve adopts coaxial setting's upper fixing bolt and lower fixing bolt to carry out axial fixity to the case subassembly, compares in one-way tightening up the mode, and it is more convenient to install, does benefit to the regulation of case and valve pocket concentricity, guarantees that the feeling of product is more even, reduces the emergence of blocking; the valve body is provided with the ignition assembly, so that the ignition efficiency is higher; in addition, the valve body adopts a straight-pushing structure, so that the problem that the electromagnetic valve pushes against the bottom of the gas furnace can be avoided, and the service life of the electromagnetic valve is prolonged.

Drawings

Fig. 1 is a perspective view (top surface forward) of a flameout protection gas valve of the present invention.

Fig. 2 is a perspective view (bottom surface up) of a flameout protection gas valve of the present invention.

Fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

Fig. 5 is a cross-sectional view taken along line C-C in fig. 2.

Wherein: 1. a valve body; 11. a solenoid valve mounting cavity; 12. a valve cavity; 13. an air inlet; 14. an air outlet; 15. mounting grooves; 16. a slot cover; 17. an air inlet cavity; 18. a top cover; 2. an electromagnetic valve; 3. a valve core assembly; 31. shifting blocks; 32. a pressing member; 33. a core bar; 331. a fixing ring; 332. a slot; 34. a handle; 341. inserting a block; 342. a limiting ring; 35. a third spring; 36. a shifting block fixing piece 4 and an upper fixing bolt; 41. axial air holes; 5. a lower fixing bolt; 6. an ignition assembly; 61. an ignition needle holder; 62. an ignition needle; 63. a piezoelectric igniter; 64. an impact post; 641. a shifting sheet; 65. a first spring; 7. a thimble ejector rod mechanism; 71. a top rod; 72. a thimble; 73. a second spring; 74. a static seal ring; 75. a movable sealing ring; 8. an air outlet nozzle; 81. a flap; 9. and (5) bolt rubber mats.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be embodied in many other forms without departing from the spirit or essential characteristics thereof, and it should be understood that the invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1-5, a flameout protection gas valve has a valve body 1, an electromagnetic valve installation cavity 11 and a valve cavity 12 which are perpendicular to each other are arranged in the valve body 1, an electromagnetic valve 2 is arranged in the electromagnetic valve 2 installation cavity, and an air inlet 13 communicated with the electromagnetic valve installation cavity 11 is arranged on the valve body 1. The valve cavity 12 is rotatably connected with a valve core component 3 for adjusting air outlet quantity, and one side of the valve cavity 12 is provided with an air outlet 14.

The top surface of the valve body 1 is provided with an upper fixing bolt 44 extending into the valve cavity 12, and the bottom surface is provided with a lower fixing bolt 5 extending into the valve cavity 12. Go up fixing bolt 4 and be in same axis with lower fixing bolt 5, go up fixing bolt 4, lower fixing bolt 5 and case subassembly 3 tip counterbalance to fix case subassembly 3. The fixing mode of the two-way bolt is beneficial to adjusting the concentricity of the valve core assembly 3 and the valve cavity 12, so that the valve core assembly 3 rotates more smoothly.

One side of the valve body 1 is provided with an ignition assembly 6 which comprises an ignition needle bracket 61, an ignition needle 62, a piezoelectric igniter 63, an impact column 64 and a first spring 65. The ignition needle support 61 is fixedly connected to one side of the valve body 1, the ignition needle 62 is arranged on the ignition needle support 61, and the ignition needle 62 is electrically connected with the piezoelectric igniter 63. The valve body 1 is provided with an installation groove 15 arranged along the rotation tangential direction of the valve core component 3 and a groove cover 16 for buckling the installation groove 15. The first spring 65, the impact column 64 and the piezoelectric igniter are abutted end to end in the mounting groove 15, a pilot hole communicated with the valve cavity 12 is formed in the bottom of the mounting groove 15, the bottom of the impact column 64 is connected with a shifting piece 641 penetrating through the pilot hole, and the outer wall of the valve core assembly 3 is provided with a shifting block 31 for shifting the shifting piece 641.

The top surface of the valve body 1 is provided with an air inlet cavity 17 and a top cover 18 for sealing the air inlet cavity 17. A connecting hole is provided between the air inlet chamber 17 and the solenoid valve installation chamber 11, and the connecting hole can be closed or opened by the piston of the solenoid valve 2. The upper fixing bolt 4 is arranged in the air inlet cavity 17, and the upper fixing bolt 4 is provided with an axial air hole 41. The valve core assembly 3 is provided with an air outlet channel communicated with the air outlet 14, and the outer wall of the valve core assembly 3 is provided with a radial air hole corresponding to the axial air hole 41.

And a thimble and ejector rod mechanism 7 is arranged in the air inlet cavity 17 and used for resetting the electromagnetic valve 2 to open the connecting hole. The ejector pin and ejector rod mechanism 7 comprises an ejector rod 71 and an ejector pin 72, the ejector rod 71 is Z-shaped, one corner end of the ejector rod 71 is hinged in the air inlet cavity 17, and one end part of the ejector rod 71 is arranged in the connecting hole. The side wall of the air inlet cavity 17 is provided with a sliding cavity communicated with the valve cavity 12, and the thimble 72 is arranged in the sliding cavity.

One end of the thimble 72 extends into the air inlet cavity 17 to abut against the other end of the mandril 71, and the other end of the thimble 72 extends into the valve cavity 12. The thimble 72 is further sleeved with a second spring 73 for providing resilience to the thimble 72. One end of the valve core assembly 3, which is far away from the air outlet 14, is connected with a pressing piece 32 which moves axially, and the pressing piece 32 is provided with a convex part which is abutted against the end part of the thimble 72.

The thimble 72 is provided with a static sealing ring 74 at one end close to the inlet chamber 17 and a dynamic sealing ring 75 at one end close to the valve chamber 12. The static sealing ring 74 is fixedly arranged in the sliding cavity and does not move along with the thimble 72, the dynamic sealing ring 75 is embedded in the annular groove on the outer wall of the thimble 72 and moves along with the thimble 72, and the dynamic sealing ring 75 has certain guidance so as to prevent the thimble 72 from excessively swinging during movement. The dynamic and static sealing rings are matched for use, so that the gas in the gas inlet cavity 17 can be effectively prevented from leaking to the valve cavity 12 through the sliding cavity.

The cartridge assembly 3 includes a core rod 33, a handle 34, and a third spring 35. The end of the core bar 33 far away from the air outlet 14 is provided with a fixing ring 331 and a slot 3, and the end of the handle 34 is provided with an insert 341 and a limit ring 342. The plug 341 is inserted into the socket 3 and can move a distance in the axial direction. The third spring 35 is provided between the fixing ring 331 and the stopper ring 342 to provide an elastic force to restore the handle 34 after being pressed. The pressing member is provided between the third spring 35 and the retainer ring 342.

The insert 341 is sleeved with a non-rotatable shifting block fixing plate 36, and the shifting block 31 is integrally formed on the shifting block fixing plate 36. The end part of the core rod 33 close to the air outlet 14 is spherical, and the air outlet channel and the radial air hole are arranged at the spherical end part. The middle part of the core rod 33 is provided with a plurality of core rod rubber gaskets for sealing the valve cavity 12.

The air outlet 14 is connected with an air outlet nozzle 8, and the end part of the air outlet nozzle is provided with an air flap 81 for adjusting the air quantity. Bolt rubber pads 9 are arranged between the upper fixing bolt 4 and the spherical end of the core rod 33 and between the lower fixing bolt 5 and the spherical end of the core rod 33. The valve body 1 adopts a straight-top structure, and the electromagnetic valve 2 can be far away from a high-temperature area of a furnace head after installation, so that the situation that the electromagnetic valve props against the bottom of a gas furnace is avoided.

The utility model discloses a flame-out protection gas valve, its theory of operation as follows:

when in ignition, the handle 34 is rotated, the shifting block fixing sheet 36 rotates, and the shifting block shifts the shifting sheet 641 of the impact column 64 and then releases the shifting sheet 641, so that the impact column 64 impacts the piezoelectric igniter 63 to generate pulse, and the ignition needle 62 generates spark; meanwhile, the spherical end of the core rod 33 rotates, the radial air hole of the core rod is gradually communicated with the axial air hole 41 of the upper fixing bolt 4, fuel gas flows to the gas outlet nozzle 8 through the gas inlet 13, the electromagnetic valve mounting cavity 11, the connecting hole, the gas inlet cavity 17, the axial air hole 41, the radial air hole, the gas outlet channel and the gas outlet 14, and the positions of the axial air hole 41 and the radial air hole are adjusted through rotating the handle 34, so that gas quantity adjustment is realized.

When suddenly flameout, the piston of the electromagnetic valve 2 closes the connecting hole, so that the gas can not enter the gas outlet nozzle 8. By pressing the handle 34, the pusher 32 presses the thimble 72, and the thimble 72 presses the rod 71 to open the piston of the solenoid valve 2, thereby resetting the solenoid valve 2.

Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a flame-out protection gas valve, includes the valve body, valve body one side is equipped with the solenoid valve, the valve body corresponds solenoid valve position is equipped with the air inlet, be equipped with the valve pocket in the valve body, the valve pocket internal rotation is connected with the case subassembly, valve pocket one side is equipped with gas outlet, its characterized in that: the top surface of the valve body is provided with an upper fixing bolt extending into the valve cavity, the bottom surface of the valve body is provided with a lower fixing bolt extending into the valve cavity, the upper fixing bolt and the lower fixing bolt are located on the same axis, the upper fixing bolt and the lower fixing bolt abut against the end part of the valve core assembly, and one side of the valve body is provided with an ignition assembly.

2. Flameout protection gas valve according to claim 1, characterized in that: the ignition assembly comprises an ignition needle support, an ignition needle, a piezoelectric igniter, a collision column and a first spring, the ignition needle support is fixedly connected to one side of the valve body, the ignition needle is arranged on the ignition needle support, the ignition needle is electrically connected with the piezoelectric igniter, a mounting groove is formed in the valve body and arranged in the direction of the rotation tangent line of the valve core assembly, the first spring, the collision column and the piezoelectric igniter are abutted end to end in the mounting groove, a guide hole communicated with the valve cavity is formed in the bottom of the mounting groove, a shifting piece penetrating through the guide hole is connected to the bottom of the collision column, and a shifting block for shifting the shifting piece is arranged on the outer wall of the valve core assembly.

3. Flameout protection gas valve according to claim 2, characterized in that: the top surface of the valve body is provided with an air inlet cavity connected with the electromagnetic valve and a top cover sealing the air inlet cavity, the upper fixing bolt is arranged in the air inlet cavity and provided with an axial air hole, the valve core assembly is provided with an air outlet channel communicated with the air outlet, and the outer wall of the valve core assembly is provided with a radial air hole corresponding to the axial air hole.

4. A flameout protection gas valve as claimed in claim 3, wherein: the air inlet cavity is internally provided with a thimble and ejector rod mechanism, one end of the thimble and ejector rod mechanism is abutted against a piston of the electromagnetic valve, the other end of the thimble and ejector rod mechanism extends out of the air inlet cavity, the valve core assembly is externally connected with a pressing piece which moves axially, the pressing piece is provided with a protruding part, and the protruding part is abutted against the extending end of the thimble and ejector rod mechanism.

5. The flameout protection gas valve according to claim 4, wherein: the ejector pin and ejector rod mechanism comprises an ejector pin and an ejector rod, the ejector rod is Z-shaped, one angular end of the ejector rod is hinged in the air inlet cavity, the ejector pin is slidably arranged on the wall of the air inlet cavity, and the ejector pin is sleeved with a second spring.

6. Flameout protection gas valve according to claim 5, characterized in that: the valve element assembly comprises a core rod, a handle and a third spring, a fixing ring and a slot are arranged at one end, far away from the gas outlet, of the core rod, an inserting block and a limiting ring are arranged at one end of the handle, the inserting block is inserted into the slot, the third spring is arranged between the fixing ring and the limiting ring, and a pressing piece is arranged between the third spring and the limiting ring.

7. The flameout protection gas valve according to claim 6, wherein: the insert is sleeved with a shifting block fixing piece, and the shifting block is arranged on the shifting block fixing piece.

8. Flameout protection gas valve according to claim 7, characterized in that: the end part of the core bar close to the air outlet is spherical, and the middle part of the core bar is provided with a plurality of core bar rubber gaskets for sealing the valve cavity.

9. Flameout protection gas valve according to any one of claims 1 to 8, characterized in that: the air outlet is connected with an air outlet nozzle, and the end part of the air outlet nozzle is provided with an air flap.

10. Flameout protection gas valve according to claim 9, characterized in that: bolt rubber pads are arranged between the upper fixing bolt and the valve core assembly and between the lower fixing bolt and the valve core assembly.