CN218031521U

CN218031521U - Gas valve core and plug valve

Info

Publication number: CN218031521U
Application number: CN202222491308.3U
Authority: CN
Inventors: 覃桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-13
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a gas valve core, wherein a communicating sink groove extending along the circumferential direction is arranged on the outer side of a valve core main body; the communicating sink groove is provided with a plurality of fire inlet holes which are arranged at intervals; the apertures of the plurality of fire inlet holes are distributed along the circumferential direction of the valve core main body and are gradually enlarged or reduced in sequence; the communicating sink groove can be communicated with the air inlet channel, and the fire inlet hole can enable the communicating sink groove to be communicated with the air outlet connecting cavity. The utility model discloses, it is not the hole site of laminating inlet channel completely to go out the fire hole, but makes out to have a transition gas groove space between fire hole and the inlet channel by the heavy groove of intercommunication, can make the inlet flow can not produce obvious fluctuation from top to bottom change, goes out the transition that fire hole relatively links up to next fire hole from one for this case is at rotatory in-process, and the firepower adjustment of plug valve more links up smoothly, is convenient for match intelligent control element, carries out automatic intelligent culinary art.

Description

Gas valve core and plug valve

Technical Field

The utility model relates to a gas equipment technical field, in particular to gas valve core and plug valve.

Background

The gas stove is provided with plug valves, the plug valves are used for controlling the on-off of gas, the plug valves use plug bodies with through holes as valves of opening and closing parts, the plug bodies rotate along with valve rods to realize opening and closing actions, and a passage opening on the valve plug is the same as or separated from a passage opening on the valve body through rotation, so that the gas is conveyed to be opened or closed. For example, patent No. cn202010504002.X discloses a plug valve with a novel ignition structure, wherein a valve core of the valve body is provided with big fire air outlet holes 21 and small fire air outlet holes 22 which are adjacent to each other by about 90 degrees and are staggered and provided with different apertures, the hole position of the air outlet holes communicated with an air inlet channel hole of an air inlet joint is changed by rotating the valve core, and the size of gas flow output by the plug valve is switched by matching the fire outlet holes with different apertures.

However, in the process of rotating the valve core, the overlapped surfaces of the fire outlet hole and the air inlet channel hole can be partially overlapped, completely overlapped and partially overlapped, so that the change process of the gas flow of the plug valve in the process of rotating the valve core causes the obvious inconsequential discontinuous phenomenon, which is not beneficial to the adjustment of the firepower of the gas stove by a user and the automatic cooking idea matched with the intelligent cooking idea.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a gas valve core and plug valve.

The utility model discloses a technical scheme that its technical problem was solved to an embodiment adopted is: a gas valve core comprises a valve core main body and a valve rod connecting seat which are arranged in a conical manner, wherein the valve core main body can be arranged in a valve core cavity of a valve seat, and the valve seat is provided with an air inlet channel and an air outlet channel; an air outlet connecting cavity is arranged in the valve core main body and can be communicated with an air outlet channel; is characterized in that: a communication sink groove extending along the circumferential direction is formed in the outer side of the valve core main body; the communication sink groove is provided with a plurality of fire inlet holes which are arranged at intervals; the apertures of the plurality of fire inlet holes are distributed along the circumferential direction of the valve core main body and are sequentially and gradually enlarged or reduced;

the communication sink groove can be communicated with the air inlet channel, and the fire inlet hole can enable the communication sink groove to be communicated with the air outlet connecting cavity.

Optionally, the outer side of the valve core main body is further provided with two oil sumps which are annularly arranged, and the two oil sumps are arranged on the front side and the rear side of the communicated oil sumps along the axial direction of the valve core main body.

Optionally, an oil storage counter bore is further disposed on the outer side of the valve core main body, and the oil storage counter bore may be communicated with the oil sink groove.

Optionally, two sections of the communicating sink grooves are arranged at intervals; the two sections of the communicating sunken grooves are oppositely arranged on the outer side of the valve core main body and are not communicated with each other.

The utility model has the advantages that: the fuel gas is sent to the communicating sink groove from the gas inlet channel, then sent to the gas outlet connecting cavity in the valve core main body through the fire inlet hole, and then output through the gas outlet channel; the fire outlet is not completely attached to the hole site of the air inlet channel, but a transitional air groove space is formed between the fire outlet and the air inlet channel by communicating the sunken grooves, so that when the valve core main body is rotated, although the overlap of the fire outlet and the air inlet channel at the hole site still can be changed, the gap connected with the sunken grooves can prevent the air inlet flow from generating obvious fluctuation change, and the valve core is more continuously transited to the next fire outlet from one fire outlet, so that the fire adjustment of the plug valve is more continuous and smooth in the rotating process, the valve core is convenient to match with an intelligent control element, and automatic intelligent cooking is performed.

The utility model discloses still provide another technical scheme: a plug valve comprises the gas valve core.

In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible and obvious, preferred embodiments accompanied with figures are described in detail below.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic exploded view of one embodiment of a plug valve according to the present invention;

fig. 2 is a schematic structural view of a gas valve core according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the gas valve core in fig. 2 from another view angle.

Description of the main element symbols:

10. a valve core main body; 11. an air outlet connecting cavity; 12. communicating the sinking groove; 13. a fire inlet hole; 14. an oil sink; 15. an oil storage counter bore; 20. a valve stem connecting seat; 30. a valve seat; 31. an air intake passage; 32. and an air outlet channel.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can be detachably connected and can be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical field can reasonably determine the specific meaning of the words in the utility model by combining the specific content of the technical scheme.

Examples

Referring to fig. 1 to 3, the present invention provides a gas valve cartridge, including a conical valve cartridge main body 10 and a valve rod connecting seat 20, the valve cartridge main body 10 can be installed in a valve cartridge cavity of a valve seat 30, the valve seat 30 is provided with an air inlet channel 31 and an air outlet channel 32; an air outlet connecting cavity 11 is arranged in the valve core main body 10, and the air outlet connecting cavity 11 can be communicated with an air outlet channel 32; is characterized in that: a communication sink groove 12 extending along the circumferential direction is arranged on the outer side of the valve core main body 10; the communicating sink tank 12 is provided with a plurality of fire inlet holes 13 which are arranged at intervals; the apertures of the plurality of fire inlet holes 13 are distributed along the circumferential direction of the valve core main body 10 and are gradually enlarged or reduced in sequence;

the communication sink 12 may communicate with the gas inlet passage 31, and the fire inlet hole 13 may communicate the communication sink 12 with the gas outlet connection chamber 11.

In the utility model, the fuel gas is sent to the communicating sink 12 from the gas inlet channel 31, then sent to the gas outlet connecting cavity 11 in the valve core main body 10 through the fire inlet hole 13, and then output through the gas outlet channel 32; the fire outlet is not completely attached to the hole site of the air inlet channel 31, but a transitional air groove space is formed between the fire outlet and the air inlet channel 31 by communicating the sinking grooves 12, so that when the valve core body 10 is rotated, although the overlapping of the fire outlet and the air inlet channel 31 at the hole site still changes, the gap of the connection sinking grooves can prevent the air inlet flow from generating obvious fluctuation change, the valve core is continuously transited from one fire outlet to the next fire outlet, so that the fire adjustment of the plug valve is more continuous and smooth in the rotating process, the intelligent control element is conveniently matched, and the automatic intelligent cooking is carried out.

The utility model discloses, the outside of case main part 10 still is equipped with the heavy oil groove 14 that two rings shape set up, and two heavy oil grooves 14 set up in both sides around intercommunication heavy groove 12 along the axial of case main part 10. The oil sink groove 14 is an oil groove formed in the outer side of the valve core main body 10, and can maintain the lubricating effect between the valve core main body 10 and the valve seat 30 by filling grease; besides, oil sumps 14 are arranged on the front side and the rear side of the communicated sink groove 12 and are arranged on the two opposite sides of the hole site of the air inlet channel 31 in a matching mode, so that the sealing effect of the air inlet channel 31 and the communicated sink groove 12 can be synchronously realized, and the gas leakage is effectively prevented.

Further, an oil storage counter bore 15 is further disposed on the outer side of the valve core main body 10, and the oil storage counter bore 15 may be communicated with the oil sink groove 14. The oil storage counterbore 15 can store a portion of the grease and is in communication with the oil sump 14. When the grease in the oil sump 14 is insufficient, the grease can be supplemented to the oil sump 14; when the grease in the oil sink 14 is too much and needs to be overflowed, the grease can return to the oil storage sink 15, so that a dynamic grease balancing effect is achieved.

Specifically, the oil storage counter bore 15 and the oil sink groove 14 are both only arranged on the outer surface of the valve core main body 10 and are not communicated with the air outlet communication cavity. The oil sink groove 14 is a process step required to be reserved for machining the conical outer surface, and in the embodiment, the process step is ingeniously converted into the oil sink groove 14.

The fuel types of the gas appliance are various, the common fuel is liquefied petroleum gas and natural gas, different types of fuel are used, and the types and the size proportion of the fire inlet holes 13 are different in order to achieve the optimal fuel-air mixing ratio. For example, in order to adapt to the liquefied petroleum gas, the aperture ratio of the fire inlet hole 13 may be set to 0.5, 0.6, 0.7, 0.8 mm; and the aperture ratio of the fire inlet holes 13 may be set to 0.65, 0.75, 0.85, 0.95mm in order to adapt to natural gas. Therefore, the existing valve body structure can only be matched with a single type of fuel generally, and if gas appliance products are required to be arranged corresponding to different types of fuels, the valve body needs to be replaced; or, through setting up complicated valve body structure, the producer switches through the preliminary adjustment, consequently leads to very complicated of valve body structure, and manufacturing cost is high.

In this embodiment, the communicating sink 12 is provided with two sections at intervals; the two sections of communicating sunken grooves 12 are oppositely arranged on the outer side of the valve core main body 10 and are not communicated with each other. The two sections which are not communicated are communicated with the sink 12 and do not interfere with each other; the fire inlet 13 in one section of the connecting sinking groove 12 can be arranged according to the optimal air inlet aperture ratio of the liquefied petroleum gas; the fire inlet 13 in the other section of the communicating sink groove 12 is arranged according to the optimal proportion of the natural gas inlet, namely, an air inlet path structure which meets the air inlet requirements of two fuels and does not interfere with each other can be arranged on a single valve body structure. For example, by installing a motor at the other end of the valve seat 30, the output shaft of the motor is connected with the valve rod connecting seat 20, and the motor rotates forwards to adapt to the adjustment of the air inlet path of the liquefied petroleum gas; the motor rotates reversely to adapt to the adjustment of the air inlet path of the natural gas. The whole structure of the valve body is simple and compact, and a manufacturer can meet the matching requirements of various fuels by adjusting the positive and negative rotation directions of the motor, thereby improving the adaptive capacity and effectively reducing the manufacturing cost.

The utility model discloses a plug valve is owing to possess foretell gas valve core, connects the interval space of heavy groove, can make the air intake flow can not produce obvious fluctuation from top to bottom change, goes out the transition that fire hole relatively links up to next fire hole from one for this case is at rotatory in-process, and the firepower adjustment of plug valve is more continuous smooth and easy, is convenient for match intelligent control component, carries out automatic intelligent culinary art.

The plug valve of this embodiment provides and links up smooth and easy firepower adjustment of admitting air, and at the in-process of adjustment, the inflow of gas can not produce obvious fluctuation from top to bottom and change, and when valve rod connecting seat 20 collocation motor used, the firepower was adjusted sensitively, and matching control center's that can be better timer, lampblack absorber etc. carry out intelligent automatic cooking.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. A gas valve cartridge characterized by: the valve core comprises a valve core main body (10) and a valve rod connecting seat (20) which are arranged in a conical shape, wherein the valve core main body (10) can be installed in a valve core cavity of a valve seat (30), and the valve seat (30) is provided with an air inlet channel (31) and an air outlet channel (32); an air outlet connecting cavity (11) is arranged inside the valve core main body (10), and the air outlet connecting cavity (11) can be communicated with an air outlet channel (32); is characterized in that: a communication sink groove (12) extending along the circumferential direction is formed in the outer side of the valve core main body (10); the communication sink groove (12) is provided with a plurality of fire inlet holes (13) which are arranged at intervals; the apertures of the plurality of fire inlet holes (13) are distributed along the circumferential direction of the valve core main body (10) and are sequentially and gradually enlarged or reduced;

the communication sink groove (12) can be communicated with the air inlet channel (31), and the fire inlet hole (13) can enable the communication sink groove (12) to be communicated with the air outlet connecting cavity (11).

2. A gas valve cartridge as claimed in claim 1, wherein: the outer side of the valve core main body (10) is further provided with two oil sinking grooves (14) which are annularly arranged, and the two oil sinking grooves (14) are arranged on the front side and the rear side of the communication oil sinking groove (12) along the axial direction of the valve core main body (10).

3. A gas valve cartridge as claimed in claim 2, wherein: the outer side of the valve core main body (10) is further provided with an oil storage counter bore (15), and the oil storage counter bore (15) can be communicated with the oil sink groove (14).

4. A gas valve cartridge as claimed in claim 1, wherein: two sections of the communication sinking grooves (12) are arranged at intervals; the two sections of the communication sinking grooves (12) are oppositely arranged on the outer side of the valve core main body (10) and are not communicated with each other.

5. A plug valve, characterized by: comprising a gas cartridge according to any one of claims 1 to 4.