A multi-stage fire valve core and its gas regulating valve

Abstract

The present invention provides a multi-stage fire control valve core. The multi-stage fire control valve core is of a columnar structure and includes a first fire control adjustment layer and a second fire control adjustment layer. Both the first fire control adjustment layer and the second fire control adjustment layer are of an annular structure. The first fire control adjustment layer and the second fire control adjustment layer are arranged in sequence along the axial direction of the columnar structure of the multi-stage fire control valve core. A number of gas adjustment holes are provided on both the first fire control adjustment layer and the second fire control adjustment layer. A first fire control adjustment area is provided on the first fire control adjustment layer, and a second fire control adjustment area is provided on the second fire control adjustment layer. The projections of the first fire control adjustment area and the second fire control adjustment area on the axial direction of the columnar structure of the multi-stage fire control valve core are both fan-shaped, and the fan-shaped projection angle of the second fire control adjustment area is not less than 180 degrees. The present invention improves the adjustment ability of the valve core and provides more firepower options for gas appliances.

Description

Technical Field

[0001] The present invention relates to a fire control valve core, in particular to a multi-stage fire valve core and its gas regulating valve. Background Art

[0002] Gas appliances, as household cooking facilities, have a wide range of applications. During the cooking process, users need to adjust the firepower according to the cooking situation to achieve a better cooking effect. Most gas appliances adopt a fire control valve core structure to control the gas flow rate, and thus adjust the firepower. The firepower required for cooking traditional Chinese dishes varies widely from the high fire required for stir-frying to the low fire required for stewing for several hours. However, the control area of the existing valve cores is small, resulting in limited firepower options for users, and it is extremely easy to shut off the gas during the adjustment process, causing danger. Summary of the Invention

[0003] The present invention provides a multi-stage fire valve core and its gas regulating valve to improve the adjustment ability of the valve core and provide more firepower options for gas appliances.

[0004] The present invention provides a multi-stage fire valve core. The multi-stage fire valve core is of a columnar structure and includes a first fire adjustment layer and a second fire adjustment layer. Both the first fire adjustment layer and the second fire adjustment layer are of an annular structure. The first fire adjustment layer and the second fire adjustment layer are sequentially arranged along the axial direction of the columnar structure of the multi-stage fire valve core. Both the first fire adjustment layer and the second fire adjustment layer are provided with a plurality of gas adjustment holes. The first fire adjustment layer is provided with a first fire adjustment area, and the second fire adjustment layer is provided with a second fire adjustment area. The first fire adjustment area is composed of the gas adjustment holes on the first fire adjustment layer arranged in sequence, and the second fire adjustment area is composed of the gas adjustment holes on the second fire adjustment layer arranged in sequence. The projections of the first fire adjustment area and the second fire adjustment area on the axial direction of the columnar structure of the multi-stage fire valve core are both fan-shaped, and the projections of the first fire adjustment area and the second fire adjustment area on the axial direction of the columnar structure of the multi-stage fire valve core overlap. The fan-shaped projection angle of the second fire adjustment area is not less than 180 degrees.

[0005] Further, the gas adjustment holes are selected from one or more of strip holes, straight through holes, and fine adjustment holes.

[0006] Furthermore, the first fire adjustment layer includes a straight through hole, a first fine adjustment hole, and a second fine adjustment hole. The straight through hole, the first fine adjustment hole, and the second fine adjustment hole are adjacent to each other in sequence along the annular structure of the first fire adjustment layer, and the minimum diameters of the straight through hole, the first fine adjustment hole, and the second fine adjustment hole decrease in sequence.

[0007] Furthermore, the second firepower adjustment layer includes a strip-shaped hole, a third fine adjustment hole, a fourth fine adjustment hole, and a fifth fine adjustment hole. The strip-shaped hole, the third fine adjustment hole, the fourth fine adjustment hole, and the fifth fine adjustment hole are adjacent to each other in sequence along the annular structure of the second firepower adjustment layer. One end of the strip-shaped hole faces the third fine adjustment hole. The minimum diameters of the third fine adjustment hole, the fourth fine adjustment hole, and the fifth fine adjustment hole decrease in sequence. The arrangement direction of the third fine adjustment hole, the fourth fine adjustment hole, and the fifth fine adjustment hole on the second firepower adjustment layer is the same as the arrangement direction of the straight through hole, the first fine adjustment hole, and the second fine adjustment hole on the first firepower adjustment layer.

[0008] Furthermore, the strip-shaped hole is a waist-shaped hole, and both ends of the waist-shaped hole are arc-shaped.

[0009] Furthermore, the fine adjustment hole includes a ventilation part and a flared part. The ventilation part includes a through hole section and a tapered hole section. The tapered hole section is a tapered hole. The flared part is a round hole. One end of the through hole section is connected to the tapered tip of the tapered hole section. The flared part is connected to the tapered bottom end of the tapered hole section. The diameter of the flared part is not less than the maximum diameter of the tapered hole section. The through hole section is connected to the inner side of the multi-stage firepower valve core, and the flared part is connected to the outer side of the multi-stage firepower valve core.

[0010] Furthermore, the taper angle of the tapered hole section is 90 degrees.

[0011] Furthermore, the end of the flared part located on the outer side of the multi-stage firepower valve core coincides with the extension line of the tapered hole section.

[0012] Furthermore, the multi-stage firepower valve core is of a cylindrical structure, and the included angle between the through hole sections of adjacent fine adjustment holes on the second firepower adjustment layer is 45 degrees.

[0013] The present invention also discloses a gas regulating valve, and the gas regulating valve applies the above multi-stage firepower valve core.

[0014] Compared with the prior art, the present invention improves the size of the second firepower adjustment area and expands the firepower adjustment range of the valve core by using the combination of multiple gas adjustment holes, enabling users to more conveniently select an appropriate firepower for cooking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of the present invention;

[0016] Figure 2 is a side view of an embodiment of the present invention;

[0017] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

[0018] Figure 4 is a schematic cross-sectional structure diagram of the first firepower adjustment layer of an embodiment of the present invention;

[0019] Figure 5 Schematic cross-sectional structure diagram of the second firepower adjustment layer in an embodiment of the present invention;

[0020] Figure 6 Schematic enlarged structure diagram of the fifth fine-tuning hole in an embodiment of the present invention. Specific embodiments

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] An embodiment of the present invention discloses a multi-stage firepower valve core, as Figure 1-6 shown, the multi-stage firepower valve core is of a columnar structure. The multi-stage firepower valve core includes a first firepower adjustment layer 1 and a second firepower adjustment layer 2. The first firepower adjustment layer 1 and the second firepower adjustment layer 2 are both of an annular structure. The first firepower adjustment layer 1 and the second firepower adjustment layer 2 are sequentially arranged along the axial direction of the columnar structure of the multi-stage firepower valve core. The first firepower adjustment layer 1 and the second firepower adjustment layer 2 are both provided with a plurality of gas adjustment holes. A first firepower adjustment area is provided on the first firepower adjustment layer 1, and a second firepower adjustment area is provided on the second firepower adjustment layer 2. The first firepower adjustment area is composed of the gas adjustment holes on the first firepower adjustment layer 1 arranged in sequence. The second firepower adjustment area is composed of the gas adjustment holes on the second firepower adjustment layer 2 arranged in sequence. The projections of the first firepower adjustment area and the second firepower adjustment area on the axial direction of the columnar structure of the multi-stage firepower valve core are both fan-shaped. The projections of the first firepower adjustment area and the second firepower adjustment area on the axial direction of the columnar structure of the multi-stage firepower valve core overlap. The fan-shaped projection angle of the second firepower adjustment area is not less than 180 degrees.

[0023] Optionally, the gas adjustment hole is selected from one or more of a strip hole, a straight through hole, and a fine-tuning hole.

[0024] Particularly, as Figure 4 shown, the first firepower adjustment layer 1 includes a straight through hole 11, a first fine-tuning hole 12, and a second fine-tuning hole 13. The straight through hole 11, the first fine-tuning hole 12, and the second fine-tuning hole 13 are adjacent to each other in sequence along the annular structure of the first firepower adjustment layer 1. The minimum diameters of the straight through hole 11, the first fine-tuning hole 12, and the second fine-tuning hole 13 decrease in sequence.

[0025] Among them, as Figure 4 shown, the straight through hole 11 is a simple through hole structure. The first fine-tuning hole 12 and the second fine-tuning hole 13 are both of fine-tuning hole structures.

[0026] Particularly, as Figure 5As shown, the second firepower adjustment layer 2 includes a strip-shaped hole 21, a third fine adjustment hole 22, a fourth fine adjustment hole 23, and a fifth fine adjustment hole 24. The strip-shaped hole 21, the third fine adjustment hole 22, the fourth fine adjustment hole 23, and the fifth fine adjustment hole 24 are adjacent to each other in sequence along the annular structure of the second firepower adjustment layer 2. One end of the strip-shaped hole 21 faces the third fine adjustment hole 22. The minimum diameters of the third fine adjustment hole 22, the fourth fine adjustment hole 23, and the fifth fine adjustment hole 24 decrease in sequence. The arrangement direction of the third fine adjustment hole 22, the fourth fine adjustment hole 23, and the fifth fine adjustment hole 24 on the second firepower adjustment layer 2 is the same as the arrangement direction of the straight through hole 11, the first fine adjustment hole 12, and the second fine adjustment hole 13 on the first firepower adjustment layer 1.

[0027] Among them, as Figure 5 shown, the strip-shaped hole 21 is an oval-shaped hole, which is an overall long strip hole, and both ends are arc-shaped structures 211.

[0028] As Figure 6 shown, the structures of each fine adjustment hole are the same. Taking the fifth fine adjustment hole 24 as an example, it may have a ventilation part and a flared part 243 structure. The ventilation part includes a through hole section 241 and a tapered hole section 242. The tapered hole section 242 is a tapered hole. The flared part 243 is a round hole. One end of the through hole section 241 is connected to the tapered tip of the tapered hole section 242. The flared part 243 is connected to the tapered bottom end of the tapered hole section 242. The diameter of the flared part 243 is not less than the maximum diameter of the tapered hole section 242. The through hole section 241 is connected to the inner side of the multi-stage firepower valve core, and the flared part 243 is connected to the outer side of the multi-stage firepower valve core.

[0029] Among them, as Figure 6 shown, the through hole section 241 is a straight pipe structure. The tapered hole of the tapered hole section 242 has a tapered tip and a tapered bottom end structure. The through hole section 241 and the flared part 24 are respectively connected to the tapered tip and the tapered bottom end of the tapered hole section 242. The flared part 243 also has an annular groove structure on the outside of the tapered bottom end of the tapered hole section 242.

[0030] In the embodiment of the present invention, by setting the structure of the fine adjustment hole, the contact surface between the fine adjustment hole and the gas pipeline is enlarged by using the flared part. By adopting the through hole section structure, while ensuring the ventilation function, it will not occupy too much space of the valve core structure, ensuring that the valve core has a large range of adjustability while still maintaining high strength.

[0031] Especially, as Figure 6 shown, the taper angle of the tapered hole section 242 is 90 degrees.

[0032] Among them, as Figure 6 shown, the cross-sectional taper angle of the tapered hole section 242 is 90 degrees.

[0033] Especially, as Figure 6As shown, the flared portion 243 is located at one end outside the multi-stage fire valve core and coincides with the extension line of the tapered hole section 242.

[0034] Among them, as Figure 6 shown, the extension line of the tapered hole section 242 has a flared structure, and the end of the flared portion 243 located outside the multi-stage fire valve core coincides with the flared structure.

[0035] Specifically, as Figure 5 shown, the multi-stage fire valve core has a cylindrical structure, and the included angle between the through-hole sections 241 of adjacent fine-tuning holes in the second fire adjustment layer 2 is 45 degrees.

[0036] As Figure 5 shown, the included angle between the third fine-tuning hole 22 and the fourth fine-tuning hole 23, and the included angle between the fourth fine-tuning hole 23 and the fifth fine-tuning hole 24 are both 45 degrees. As Figure 5 、 Figure 6 shown, the straight through-hole 11 and the third fine-tuning hole 22 coincide in the axial projection of the multi-stage fire valve core's cylindrical structure, the first fine-tuning hole 12 and the fourth fine-tuning hole 23 coincide in the axial projection of the multi-stage fire valve core's cylindrical structure, and the second fine-tuning hole 13 and the fifth fine-tuning hole 24 partially coincide in the axial projection of the multi-stage fire valve core's cylindrical structure.

[0037] Among them, the multi-stage fire valve core is an integrated cylindrical structure, and the first fire adjustment layer 1 and the second fire adjustment layer 2 are different parts of the multi-stage fire valve core in the axial direction. The area of the first fire adjustment area is a fan-shaped structure composed of the straight through-hole 11, the first fine-tuning hole 12, and the second fine-tuning hole 13 (as needed, multiple fine-tuning holes can be set based on the first fine-tuning hole 12 and the second fine-tuning hole 13 to expand the adjustable range), and the second fire adjustment area is a fan-shaped structure composed of the strip-shaped hole 21, the third fine-tuning hole 22, the fourth fine-tuning hole 23, and the fifth fine-tuning hole 24. As Figure 4 shown, the central angle of the fan-shaped structure in the first fire adjustment area exceeds 120 degrees. As Figure 5 shown, the central angle of the fan-shaped structure in the second fire adjustment area exceeds 240 degrees. Part of the area of the fan-shaped structure in the first fire adjustment area does not coincide with the fan-shaped structure in the second fire adjustment area.

[0038] In practical applications, the first fire adjustment layer 1 can be connected to the outer ring gas passage of the gas appliance, and the second fire adjustment layer 2 can be connected to the inner ring gas passage of the gas appliance. By rotating the valve core, different gas adjustment holes in the first fire adjustment layer 1 and the second fire adjustment layer 2 are connected to the gas passage to form multiple combined fires. It should be particularly noted that there is partial overlap between the first fire adjustment area and the second fire adjustment area. By rotating the valve core, the first fire adjustment area and the second fire adjustment area can be separately connected to the gas passage, so as to realize the separate ventilation of the outer ring gas passage and the inner ring gas passage and expand the optional range of firepower.

[0039] The through-hole segments 241 of the third fine-tuning hole 22, the fourth fine-tuning hole 23, and the fifth fine-tuning hole 24 gradually decrease in diameter. The user can rotate the multi-stage fire valve core to connect the third fine-tuning hole 22, the fourth fine-tuning hole 23, and the fifth fine-tuning hole 24 to the channels of the gas appliance respectively, so as to control and adjust the gas flux and achieve the effect of precisely controlling the firepower.

[0040] An embodiment of the present invention also discloses a gas regulating valve, which applies the above multi-stage fire valve core.

[0041] Among them, the multi-stage fire valve core can adopt the above valve core structure.

[0042] By using the combination of multiple gas regulating holes, the embodiment of the invention increases the size of the second firepower regulating area and expands the firepower regulating range of the valve core, so that the user can more conveniently select a suitable firepower for cooking.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that after reading the specification of this application, they can still modify the specific implementation manners of the present invention or make equivalent replacements. However, these modifications or changes do not depart from the protection scope of the pending claims of this invention application.

Claims

1. A multi-stage fire valve core, characterized in that: The multi-stage fire valve core is a columnar structure, and the multi-stage fire valve core includes a first fire regulating layer and a second fire regulating layer. The first fire regulating layer and the second fire regulating layer are both annular structures. The first fire regulating layer and the second fire regulating layer are arranged in sequence along the axial direction of the multi-stage fire valve core columnar structure. The first fire regulating layer and the second fire regulating layer are both provided with a plurality of gas regulating holes. The first fire regulating layer is provided with a first fire regulating area, and the second fire regulating layer is provided with a second fire regulating area. The first fire regulating area is composed of the gas regulating holes on the first fire regulating layer arranged in sequence, and the second fire regulating area is composed of the gas regulating holes on the second fire regulating layer arranged in sequence. The projections of the first fire regulating area and the second fire regulating area in the axial direction of the multi-stage fire valve core columnar structure are both fan-shaped. The projections of the first fire regulating area and the second fire regulating area in the axial direction of the multi-stage fire valve core columnar structure overlap, and the fan-shaped projection angle of the second fire regulating area is not less than 180 degrees. The gas regulating hole is selected from one or more of a strip hole, a straight hole, and a fine-tuning hole; The fine-tuning hole includes a vent portion and a flaring portion. The vent portion includes a through hole section and a tapered hole section. The tapered hole section is a tapered hole, and the flaring portion is a circular hole. One end of the through hole section is connected to the tapered tip of the tapered hole section, and the flaring portion is connected to the tapered bottom end of the tapered hole section. The diameter of the flaring portion is not less than the maximum diameter of the tapered hole section. The through hole section is connected to the inner side of the multi-stage fire valve core, and the flaring portion is connected to the outer side of the multi-stage fire valve core. The flaring portion is further provided with an annular groove structure on the outer side of the tapered bottom end of the tapered hole section. The first fire power adjustment layer includes a straight through hole, a first fine-tuning hole, and a second fine-tuning hole. The straight through hole, the first fine-tuning hole, and the second fine-tuning hole are adjacent to each other in sequence along the annular structure of the first fire power adjustment layer. The minimum diameters of the straight through hole, the first fine-tuning hole, and the second fine-tuning hole decrease in sequence. The second fire power adjustment layer includes a strip hole, a third fine-tuning hole, a fourth fine-tuning hole, and a fifth fine-tuning hole. The strip hole, the third fine-tuning hole, the fourth fine-tuning hole, and the fifth fine-tuning hole are adjacent to each other in sequence along the ring structure of the second fire power adjustment layer. One end of the strip hole faces the third fine-tuning hole. The minimum diameters of the third fine-tuning hole, the fourth fine-tuning hole, and the fifth fine-tuning hole decrease in sequence. The arrangement direction of the third fine-tuning hole, the fourth fine-tuning hole, and the fifth fine-tuning hole on the second fire power adjustment layer is the same as the arrangement direction of the through hole, the first fine-tuning hole, and the second fine-tuning hole on the first fire power adjustment layer. The first fire power regulating layer is connected to the outer ring gas channel of the gas appliance, and the second fire power regulating layer is connected to the inner ring gas channel of the gas appliance.

2. The multi-stage fire valve core according to claim 1, characterized in that: The strip-shaped hole is a waist-shaped hole, and both ends of the waist-shaped hole are arc-shaped.

3. The multi-stage fire valve core according to claim 1, characterized in that: The cone angle of the tapered hole section is 90 degrees.

4. The multi-stage fire valve core according to claim 1, characterized in that: One end of the expanded portion located outside the multi-stage fire valve core coincides with an extension line of the tapered hole section.

5. The multi-stage fire valve core according to claim 1, characterized in that: The multi-stage fire valve core is a cylindrical structure, and the angle between the through-hole sections of adjacent fine-tuning holes in the second fire adjustment layer is 45 degrees.

6. A gas regulating valve, characterized in that: The gas regulating valve adopts the multi-stage fire valve core described in any one of claims 1-5.

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