CN212429826U

CN212429826U - Gas valve core suitable for controlling internal and external fire

Info

Publication number: CN212429826U
Application number: CN202020959023.6U
Authority: CN
Inventors: 李雪波
Original assignee: Ningbo Laite Gas Stoves Co ltd
Current assignee: Ningbo Laite Gas Stoves Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-29
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a gas valve core suitable for controlling internal and external fire, which comprises a valve core, wherein the lower part of the valve core is provided with a vent cavity with a downward opening, the side wall of the vent cavity is provided with an external fire hole group, the peripheral wall of the valve core is provided with an arc-shaped internal ring fire groove blocked by the vent cavity and an internal ring fire small hole communicated with the vent cavity, and the internal ring fire small hole is positioned between the external fire hole group and the internal ring fire groove; the method is characterized in that: the outer ring fire hole group consists of outer ring large fire holes and a plurality of outer ring small fire holes arranged at intervals along the circumference, a plurality of first strip-shaped cavities arranged at intervals along the circumference are arranged on the peripheral wall of the valve core, one outer ring small fire hole is arranged on the bottom surface of each first strip-shaped cavity, and the aperture of each outer ring small fire hole is sequentially reduced along the direction away from the outer ring large fire holes. The arrangement of the first strip-shaped concave cavity can increase the possibility of contact with a corresponding air passage on the gas valve, and ensure that the gas valve core moves and can also ensure that the gas output of the outer ring fire and/or the inner ring fire is stable.

Description

Gas valve core suitable for controlling internal and external fire

Technical Field

The utility model relates to a gas valve for gas cooking utensils especially relates to a gas valve core that is suitable for inside and outside fire to control.

Background

The gas valves in various gas cooking utensils are manually operated valves for controlling the supply of gas source. Domestic gas cooking utensils generally have interior ring fire and outer ring fire, ordinary binary channels gas valve generally has inlet channel including inside, the valve body of inner ring nozzle outlet channel and outer ring nozzle outlet channel, be equipped with the case that can rotate in the valve body, case upper portion has the spring chamber, the case lower part is equipped with the chamber of ventilating, wear to be equipped with on the valve body and to drive the rotatory valve rod of case, the lower extreme top of valve rod is held and is made the valve rod keep shifting up and break away from the spring of being connected the trend with the case, this spring is located the spring intracavity on the case, it has the serial outer ring fire hole of not uniform size that is used for intercommunication inlet channel and outer ring nozzle outlet channel to open on the chamber lateral wall of ventilating of case, and be curved inner ring fire hole in being for intercommunication inlet channel and inner. When the valve is used, the end parts of the inner ring nozzle air outlet channel and the outer ring nozzle air outlet channel of the valve body are connected with the nozzle for use, the inner ring nozzle air outlet channel is finally communicated with the inner ring part of the stove, the outer ring nozzle air outlet channel is finally communicated with the outer ring part of the stove, a user can operate the valve rod through a knob arranged on an operation panel, generally, the knob is pressed and rotated anticlockwise, the valve core can be driven to rotate anticlockwise, a big fire hole and an arc-shaped notch in the valve core are communicated with an air inlet channel in the valve body, an air source enters from the air inlet channel and then is divided into two independent paths, one path is communicated with the outer ring nozzle air outlet channel through the ventilation cavity and the outer ring fire hole, and the other path is communicated with the inner ring. When the fire is adjusted, the knob is only needed to be rotated to drive the valve core to rotate, the series of outer ring fire holes with different apertures are communicated with the outer ring nozzle air outlet channel to realize the fire adjustment of the outer ring fire, and the inner ring fire still keeps on firing when the outer ring fire is adjusted to be zero. In the rotation process of the valve core, the aperture size of the inner ring fire hole is always unchanged, namely the fire behavior of the inner ring fire cannot be adjusted. When eggs are fried or pancake is spread on a small fire, the fire of the inner ring fire is still high because the fire of the outer ring fire is small, so that the middle part of the fried eggs or pancake is easy to be burnt, and the quality of food is affected.

The Chinese patent invention ZL201610634127.8, which is applied by the applicant, discloses a gas valve core and a gas valve with the same, and comprises a valve core, wherein a vent cavity with a downward opening is arranged at the lower part of the valve core, and an outer ring fire hole with a variable gas output through the rotation of the valve core is arranged on the side wall of the vent cavity; the outer peripheral wall of the valve core is provided with an arc-shaped inner ring fire groove blocked by the vent cavity, and an inner ring small pore channel and a valve core small pore channel communicated with the vent cavity, the inner ring small pore channel is positioned between the outer ring fire hole and the inner ring fire groove, and the valve core small pore channel is arranged outside the inner ring fire groove at intervals. The outer ring fire hole comprises a big fire hole directly communicated with the vent cavity and an arc-shaped air guide groove arranged on the outer peripheral wall of the valve core, and the opening part of the starting end of the air guide groove is communicated with the big fire hole.

Although the outer ring fire hole structure has certain advantages, the outer ring fire hole structure has the following defects that the valve core inevitably moves up and down due to errors in the valve core assembling process, the overlapping degree of the air guide groove and the air channel in the valve body is low, and the up and down movement of the valve core causes the instability of the gas output.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a gas valve core that the internal and external fire of being suitable for of institutional advancement carries out control is provided to above-mentioned prior art current situation, and this gas valve core also can guarantee that outer ring fire andor inner ring fire air output is stable even taking place the drunkenness.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a gas valve core suitable for controlling internal and external fire comprises a valve core, wherein a vent cavity with a downward opening is arranged at the lower part of the valve core, an external fire hole group with a variable air output amount through rotation of the valve core is arranged on the side wall of the vent cavity, an arc-shaped internal ring fire groove blocked by the vent cavity and an internal ring fire small hole communicated with the vent cavity are arranged on the peripheral wall of the valve core, and the internal ring fire small hole is positioned between the external fire hole group and the internal ring fire groove; the method is characterized in that: the outer ring fire hole group consists of outer ring large fire holes and a plurality of outer ring small fire holes arranged at intervals along the circumference, a plurality of first strip-shaped cavities arranged at intervals along the circumference are arranged on the peripheral wall of the valve core, one outer ring small fire hole is arranged on the bottom surface of each first strip-shaped cavity, and the aperture of each outer ring small fire hole is sequentially reduced along the direction away from the outer ring large fire holes.

Preferably, the longitudinal direction of the first linear recess coincides with the axial direction of the spool. The first strip-shaped concave cavity arranged axially can further increase the possibility of contact with a corresponding air passage on the valve core, and further ensure that the gas valve core moves and can also ensure that the gas output of the outer ring fire is stable.

The valve core is further improved, the peripheral wall of the valve core is also provided with valve core small holes communicated with the vent cavity, and the valve core small holes are arranged on the outer side of the inner annular fire groove at intervals. The arrangement of the small hole of the valve core ensures that the inner ring generates flame before the outer ring when ignition is started, and similarly, when the inner ring and the outer ring have flame, the outer ring extinguishes before the inner ring extinguishes in the closing process of the valve rod, so that the use safety of the gas cooker is ensured.

Further improved, the inner ring fire holes are multiple, and the pore diameter of each inner ring fire hole is gradually reduced along the circumferential direction. This structure makes the interior ring fire size under minimum fire state adjustable, and the background patent then needs to realize through setting up extra adjusting screw, and adjusting screw structure can then be saved to this structure.

The valve core is further improved, a plurality of second strip-shaped concave cavities which are spaced along the circumference are arranged on the peripheral wall of the valve core, and one inner ring small fire hole is formed in the bottom surface of each second strip-shaped concave cavity. The second strip-shaped concave cavity can increase the possibility of contact with a corresponding air passage on the valve core, and the stability of the gas output of the inner ring fire can be ensured by ensuring the gas valve core to move.

Compared with the prior art, the utility model has the advantages of: the gas valve core changes the gas inlet mode of the traditional gas valve, and because the inner ring fire groove is blocked with the vent cavity, the gas is distributed after passing through the outer ring fire hole with variable gas outlet amount by the rotation of the valve core and is respectively distributed to the outer ring nozzle gas outlet channel and the inner ring nozzle gas outlet channel, so that as long as the gas amount passing through the outer ring fire hole is changed, the gas outlet amounts of the outer ring nozzle gas outlet channel and the inner ring nozzle gas outlet channel are synchronously changed, and the synchronous change of the outer ring fire and the inner ring fire is finally realized; the arrangement of the inner ring fire small hole can realize the function that the inner ring flame is changed from small fire to big fire and then from big fire to small fire when the outer ring fire is closed; the outer ring small fire holes are multiple and arranged on the bottom surface of the first strip-shaped cavity, the arrangement of the first strip-shaped cavity can increase the possibility of contact with a corresponding air passage on a gas valve, and the stability of the gas output of the outer ring fire and/or the inner ring fire can be ensured when the valve core moves due to the fact that the matching tolerance of the gas valve body and the gas valve core is out of tolerance and inconsistent.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a first embodiment of the present invention.

Fig. 3 is a schematic perspective view of a second embodiment of the present invention;

fig. 4 is a schematic perspective view of a second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1-2, it is a first embodiment of the present invention.

The utility model provides a be suitable for gas valve core that interior outer ring fire controlled, includes case 1, and case 1 lower part is equipped with opening vent chamber 2 down, and it has outer ring fire hole group 3 that the volume of gas can change through the rotation of case 1 to open on the vent chamber 2 lateral wall, be equipped with on the periphery wall of case 1 and block with vent chamber 2 and be curved inner ring fire recess 4 and with the communicating inner ring fire aperture 5 in vent chamber 4, inner ring fire aperture 5 is located between outer ring fire hole group 3 and inner ring fire recess 4. There is only one inner fire eyelet 5 in this embodiment.

The outer ring fire hole group 3 is composed of an outer ring large fire hole 31 and a plurality of outer ring small fire holes 32 arranged at intervals along the circumference, a plurality of first strip-shaped cavities 33 arranged at intervals along the circumference are arranged on the peripheral wall of the valve core 1, one outer ring small fire hole 32 is arranged on the bottom surface of each first strip-shaped cavity 33, and the aperture of each outer ring small fire hole 32 is sequentially reduced along the direction away from the outer ring large fire hole 31.

The longitudinal direction of the strip-shaped cavity 33 in this embodiment coincides with the axial direction of the spool 1. The outer peripheral wall of the valve core 1 is also provided with a valve core small hole 6 communicated with the vent cavity 2, and the valve core small hole 6 is arranged at the outer side of the inner ring fire groove 4 at intervals.

As shown in fig. 3 to 4, it is a first embodiment of the present invention.

The present embodiment is different from the first embodiment in that: the inner ring fire holes 5 are multiple, and the aperture of each inner ring fire hole 5 is sequentially reduced along the circumferential direction. The outer peripheral wall of the valve core 1 is provided with a plurality of second strip-shaped concave cavities 51 which are spaced along the circumference, and the bottom surface of each second strip-shaped concave cavity 51 is provided with one inner ring small fire hole 5.

The gas valve core changes the gas inlet mode of the traditional gas valve, and because the inner ring fire groove 4 is blocked with the vent cavity 2, the gas is firstly distributed after passing through the outer ring fire hole group 3 with variable gas outlet amount by the rotation of the valve core and is respectively distributed to the outer ring nozzle gas outlet channel and the inner ring nozzle gas outlet channel in the gas valve, so that as long as the gas amount passing through the outer ring fire hole group 3 is changed, the gas outlet amount of the outer ring nozzle gas outlet channel and the inner ring nozzle gas outlet channel is synchronously changed, and the synchronous change of the outer ring fire and the inner ring fire is finally realized; the arrangement of the inner ring fire small holes 5 can realize the function that the inner ring flame is changed from small fire to big fire and then from big fire to small fire when the outer ring fire is closed; the outer ring small fire holes 32 are multiple and arranged on the bottom surface of the first strip-shaped cavity 33, the arrangement of the first strip-shaped cavity 33 can increase the possibility of contact with a corresponding air passage on a gas valve, and the stability of the air output of the outer ring fire and/or the inner ring fire can be ensured when the valve core moves due to the fact that the matching tolerance of the gas valve body and the gas valve core is inconsistent. The working principle of the gas valve core can refer to the background patent.

Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas valve core suitable for controlling internal and external fire comprises a valve core (1), wherein a vent cavity (2) with a downward opening is formed in the lower portion of the valve core (1), an external fire hole group (3) with a variable air output amount through rotation of the valve core (1) is formed in the side wall of the vent cavity (2), an arc-shaped internal fire groove (4) blocked by the vent cavity (2) and an internal fire small hole (5) communicated with the vent cavity (2) are formed in the outer peripheral wall of the valve core (1), and the internal fire small hole (5) is located between the external fire hole group (3) and the internal fire groove (4); the method is characterized in that: the outer ring fire hole group (3) comprises an outer ring big fire hole (31) and a plurality of outer ring small fire holes (32) arranged at intervals along the circumference, a plurality of first strip-shaped cavities (33) arranged at intervals along the circumference are arranged on the peripheral wall of the valve core (1), the bottom surface of each first strip-shaped cavity (33) is provided with one outer ring small fire hole (32), and the aperture of each outer ring small fire hole (32) is sequentially reduced along the direction of keeping away from the outer ring big fire hole (31).

2. A gas valve cartridge adapted to control both internal and external fires as claimed in claim 1, wherein: the length direction of the strip-shaped concave cavity (33) is consistent with the axial direction of the valve core (1).

3. A gas valve cartridge adapted to control both internal and external fires as claimed in claim 1, wherein: the outer peripheral wall of the valve core (1) is also provided with valve core small holes (6) communicated with the vent cavity (2), and the valve core small holes (6) are arranged at the outer side of the inner ring fire groove (4) at intervals.

4. A gas valve cartridge adapted to control both internal and external fires as claimed in claim 1, wherein: the inner ring fire pores (5) are multiple, and the pore diameter of each inner ring fire pore (5) is gradually reduced along the circumferential direction.

5. A gas valve cartridge adapted to control both internal and external fires as claimed in claim 4, wherein: the valve is characterized in that a plurality of second strip-shaped cavities (51) spaced along the circumference are formed in the peripheral wall of the valve core (1), and one inner ring fire small hole (5) is formed in the bottom surface of each second strip-shaped cavity (51).