CN220204751U

CN220204751U - Gas plug valve with simplified ignition structure

Info

Publication number: CN220204751U
Application number: CN202320654283.6U
Authority: CN
Inventors: 李雪亚
Original assignee: Ningbo Chaoyang Household Gas Stoves Co ltd
Current assignee: Ningbo Chaoyang Household Gas Stoves Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-12-19
Anticipated expiration: 2033-03-27

Abstract

The utility model relates to a gas plug valve with simplified ignition structure, which comprises a valve body consisting of a valve seat and a valve cover, wherein a valve core is arranged in the valve body, and a valve rod is arranged on the valve body in a penetrating way; the method is characterized in that: an insulating substrate is fixed between the valve seat and the valve cover, the valve core upwards penetrates through the insulating substrate, a lower annular metal contact piece is fixed on the insulating substrate, and one end of the lower metal contact piece is exposed out of the insulating substrate to form a wiring terminal; the valve further comprises an upper metal contact piece, the upper metal contact piece is sleeved outside the valve core and can move up and down, a connecting part is arranged inside the upper metal contact piece, the upper metal contact piece is in conductive contact with the valve body, a spring cavity is arranged on the upper part of the valve core, two notches are formed in the peripheral wall of the spring cavity, an upper spring and a lower spring are further arranged in the spring cavity, the lower spring acts on the bottom surface of the connecting part, and the upper spring is supported between the top surface of the connecting part and the valve rod. The ignition structure is integrally hidden in the valve casing, the overall appearance is tidier, the size is smaller, an additional external frame is not needed, and the ignition structure is convenient to package and transport.

Description

Gas plug valve with simplified ignition structure

Technical Field

The utility model relates to a gas plug valve, in particular to a gas plug valve with a simplified ignition structure.

Background

The gas valve for gas appliance includes valve body with inlet and outlet channels, valve core with big and small fire holes and valve rod. The top of valve rod can link to each other with the knob of installing on cooking utensils panel, and during the use, the knob is operated and the control knob pole, generally presses the knob and anticlockwise rotation earlier, can drive the case anticlockwise rotation, makes the fire hole on the case be linked together with the air inlet channel in the valve body, and at this moment, the air supply can be through air inlet channel, air outlet channel and follow the nozzle blowout, supplies gas utensil to use.

In the existing gas appliance, ignition and air supply control are simultaneously realized, for example, a Chinese patent utility model patent No. ZL98249563.3 (issued publication No. CN 2356245Y) discloses an ignition structure of a gas valve, the plug valve is characterized in that a coaxially rotating cam is arranged on a knob rod connected with a valve core, a micro switch is arranged beside the cam on a valve body, the cam rotates along with the cam by rotating the knob, so that the closing and opening of the micro switch are triggered, and a corresponding electronic circuit is controlled to realize an ignition function. The utility model of China patent No. ZL201020181565.1 (publication No. CN 201697177U) also discloses an ignition structure of a gas valve, which comprises a knob rod and an ignition driving wheel sleeved outside the knob rod, wherein the knob rod can move up and down in a limiting manner and drive the ignition driving wheel to rotate synchronously, a first micro switch and a second micro switch are respectively arranged on two opposite sides of the periphery of the ignition driving wheel, and a notch is formed in the circumferential surface of the ignition driving wheel.

The ignition switch device of the existing gas valve is characterized in that the contact of the micro switch fixed on one side of the outer part of the gas valve is triggered by a cam fixed on a knob rod to realize ignition, and the gas valve is provided with the micro switch, so that the side part of the gas valve is provided with an installation position for the micro switch, the gas valve provided with the micro switch is inconvenient to package and transport, in addition, the gas valve produced by enterprises is large in quantity, each gas valve is provided with two key parts, namely the micro switch and the cam, and the cost of the gas valve is likely to be increased.

Thus, the existing ignition switch for the gas valve is in need of further improvement.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the gas plug valve with simple and reasonable structure and low cost and simplified ignition structure aiming at the current state of the art, wherein the ignition structure of the gas plug valve is hidden in the valve housing.

The technical scheme adopted for solving the technical problems is as follows: the gas plug valve with simplified ignition structure comprises a valve body composed of a valve seat and a valve cover, wherein an air inlet channel and an air outlet channel are arranged on the valve seat, a valve core is arranged in the valve body, and a valve rod capable of driving the valve core to rotate is arranged on the valve body in a penetrating manner; the method is characterized in that: an insulating substrate is fixed between the valve seat and the valve cover, the valve core upwards penetrates through the insulating substrate, a lower annular metal contact piece is fixed on the insulating substrate, and one end of the lower metal contact piece is exposed out of the insulating substrate to form a wiring terminal; the valve further comprises an annular upper metal contact piece which is sleeved outside the valve core and can move up and down, a connecting part is arranged inside the upper metal contact piece, the upper metal contact piece is in conductive contact with the valve body, a spring cavity with an upward opening is arranged at the upper part of the valve core, the periphery wall of the spring cavity is provided with two notches for the connecting part to pass through, an upper spring and a lower spring are also arranged in the spring cavity, the lower spring acts on the bottom surface of the connecting part to enable the upper metal contact to keep upward movement trend, and the upper spring is supported between the top surface of the connecting part and the valve rod; normally, the valve rod keeps moving upwards under the action of the upper spring and the lower spring, and the upper metal contact piece and the lower metal contact piece are separated from each other; and in the state that the valve rod is pressed down, the upper spring and the lower spring are pressed, and the upper metal contact piece is driven to move down until being contacted and conducted with the lower metal contact piece.

Preferably, the valve seat, the insulating base plate and the valve cover are connected and fixed together by screws. The valve seat, the insulating base plate and the valve cover can be fixed together at one time through screws, and the fixation is convenient and reliable.

As an improvement, a plurality of protruding points are arranged on the bottom surface of the upper metal contact at intervals along the circumferential direction. The arrangement of the convex points enables the upper metal contact piece and the lower metal contact piece to form contact faster and better, and the sensitivity of the ignition switch is further improved.

Further improved, the upper end surface of the insulating substrate is provided with an inner concave part, one side of the insulating substrate is provided with a perforation communicated with the inner concave part, the lower metal contact piece is arranged in the inner concave part, one side of the lower metal contact piece is provided with an extension part which extends outwards and enters the perforation, and the extension part forms a terminal of the lower metal contact piece. The wiring terminal is hidden in the perforation and plays a role in protecting the wiring terminal.

Preferably, the lower end peripheral surface of the valve rod is provided with a laterally protruding driving column, and the driving column is inserted into one of the notches. The structure is beneficial to matching the notch which is necessary to the structure with the driving post on one side of the valve rod, thereby achieving the purpose that the valve rod can drive the valve core to rotate, and the structural design is more reasonable.

In order to ensure that the gas valve has flameout protection function, an electromagnetic valve cavity and a valve core cavity are arranged in the valve body, the valve core is arranged in the valve core cavity, the air inlet channel is communicated with the electromagnetic valve cavity, the air outlet channel is communicated with the valve core cavity, the electromagnetic valve cavity is communicated with the valve core cavity through a valve port, an electromagnetic valve is arranged in the electromagnetic valve cavity, an armature of the electromagnetic valve can block or open the valve port, a push rod penetrating through the bottom of the spring cavity and entering the valve core cavity is arranged in the spring cavity, the push rod penetrates through the connecting part, and the upper spring acts on an annular stop shoulder at the top of the push rod to enable the push rod to keep upwards moving to lean against the bottom surface of the valve rod; the push rod can trigger the armature of the electromagnetic valve to move downwards along with the downward movement of the valve rod. The upper spring acts on the annular stop shoulder of the push rod, and the annular stop shoulder of the elastic push rod of the spring is transmitted to the valve rod, so that the structure is reasonable.

As an improvement, a sealing ring sleeved on the push rod is arranged in the spring cavity, and the lower end of the lower spring is directly or indirectly supported on the sealing ring. The lower spring compresses the sealing ring on the bottom surface of the spring cavity, so that the sealing effect is better, and leakage of fuel gas from between the perforation and the push rod is better avoided.

As an improvement, the lower end of the lower spring is tightly pressed with the sealing ring through a gasket sleeved on the push rod. The arrangement of the gasket prevents the spring from being directly pressed on the sealing ring, and the sealing ring is not easy to damage.

Compared with the prior art, the utility model has the advantages that: the upper metal contact and the lower metal contact are adopted to replace the original micro switch, so that the structure is simplified, and the cost is reduced; the upper spring and the lower spring respectively act on two ends of the upper metal contact piece to enable the upper metal contact piece to be arranged in a suspending mode, the upper end of the upper spring acts on the valve rod, the lower end of the lower spring abuts against the bottom surface of the spring cavity, and the valve rod under the action of external force can move downwards to drive the upper metal contact piece to move downwards so as to achieve contact between the upper metal contact piece and the lower metal contact piece; after the external force of the valve rod disappears, the upper metal contact piece moves upwards to reset under the action of the lower spring, so that the separation of the upper metal contact piece and the lower metal contact piece is realized, the contact and the conduction of the ignition switch are completed, the sensitivity of the switch is high, and the switch is not easy to damage; the key is that the ignition structure is integrally hidden in the valve casing, the whole appearance is tidier, the size is smaller, an additional external frame is not needed, and the ignition structure is convenient to package and transport.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

FIG. 3 is an enlarged view at A of FIG. 2;

fig. 4 is an exploded perspective view of an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-4, is a preferred embodiment of the present utility model.

The utility model provides a gas plug valve that ignition structure is simplified, includes the valve body 1 that comprises disk seat 11 and valve gap 12, be equipped with inlet channel 1c and outlet channel 1d on the disk seat 11, be equipped with case 3 in the valve body 1, wear to be equipped with on the valve body 1 and drive the rotatory valve rod 2 of case 3, be equipped with the fire hole on the case 3, the setting of fire hole is not the point that this patent was protected, can refer to prior art, does not expand the elaboration here.

An insulating base plate 5 is fixed between the valve seat 11 and the valve cover 12, and the valve seat 11, the insulating base plate 5 and the valve cover 12 are connected and fixed together through screws 13. The valve core 3 passes through the insulating substrate 5 upwards, a lower metal contact 6 in a ring shape is fixed on the insulating substrate 5, and one end of the lower metal contact 6 is exposed out of the insulating substrate 5 to form a terminal 61.

The circuit further comprises an annular upper metal contact 7, and a plurality of bumps 72 are arranged on the bottom surface of the upper metal contact 7 at intervals along the circumferential direction. The upper metal contact piece 7 is sleeved outside the valve core 3 and can move up and down, a connecting part 71 is arranged inside the upper metal contact piece 7, the upper metal contact piece 7 is in conductive contact with the valve body 1, a spring cavity 31 with an upward opening is arranged at the upper part of the valve core 3, two notches 32 for the connecting part 71 to pass through are formed in the peripheral wall of the spring cavity 31, a laterally protruding driving column 21 is arranged on the peripheral surface of the lower end of the valve rod 2, and the driving column 21 is inserted into one of the notches 32.

An upper spring 4a and a lower spring 4b are also arranged in the spring cavity 31, the lower spring 4b acts on the bottom surface of the connecting part 71 to keep the upper metal contact 7 moving upwards, and the upper spring 4a is supported between the top surface of the connecting part 71 and the valve rod 2; normally, the valve rod 2 keeps moving upwards under the action of the upper spring 4a and the lower spring 4b, and the upper metal contact 7 and the lower metal contact 6 are separated from each other; in the state that the valve rod 2 is pressed down, the upper spring 4a and the lower spring 4b are pressed, and the upper metal contact piece 7 is driven to move down until being contacted and conducted with the lower metal contact piece 6.

The upper end surface of the insulating substrate 5 has an inner recess 51, one side of the insulating substrate 5 has a through hole 52 communicating with the inner recess 51, the lower metal contact 6 is placed in the inner recess 51, one side of the lower metal contact 6 has an extension portion extending outward and into the through hole 52, and the extension portion forms a terminal 61 of the lower metal contact 6.

The valve body 1 is internally provided with an electromagnetic valve cavity 1a and a valve core cavity 1b, the valve core 3 is arranged in the valve core cavity 1b, an air inlet channel 1c is communicated with the electromagnetic valve cavity 1a, an air outlet channel 1d is communicated with the valve core cavity 1b, the electromagnetic valve cavity 1a is communicated with the valve core cavity 1b through a valve port 1e, an electromagnetic valve 8 is arranged in the electromagnetic valve cavity 1a, an armature 81 of the electromagnetic valve 8 can block or open the valve port 1e, a push rod 9 penetrating through the bottom of the spring cavity 31 and entering the valve core cavity 1b is arranged in the spring cavity 31, the push rod 9 penetrates through a connecting part 71, an upper spring 4a acts on an annular stop shoulder 91 at the top of the push rod 9, and the push rod 9 keeps upwards moving to be abutted against the bottom surface of the valve rod 2; the downward movement of the push rod 9 with the valve rod 2 can trigger the armature 81 of the solenoid valve 8 to move downward.

The spring cavity 31 is internally provided with a sealing ring 92 sleeved on the push rod 9, and the lower end of the lower spring 4b is tightly pressed with the sealing ring 92 through a gasket 93 sleeved on the push rod 9.

The wiring end 61 of the lower metal contact piece 6 is connected with one electrode of an ignition device in the gas stove, the other electrode of the ignition device is communicated with the valve body 1 of the gas valve to be used as a grounding electrode, and the upper spring 4 is particularly connected with the push rod 9, and then the valve rod 2 is communicated with the valve body 1 (negative electrode connection is formed). When the ignition is performed, the external force is pressed down and the valve rod 2 is rotated, the upper metal contact piece 7 moves downwards under the action of the valve rod 2 until the upper metal contact piece 7 and the lower metal contact piece 6 are contacted, the ignition device is communicated and starts to ignite, meanwhile, the driving column 21 on the valve rod drives the valve core 3 to rotate by an angle, the air quantity is adjusted, the hand is loosened after the adjustment is finished, the valve rod 2 moves upwards under the action of the upper spring 4a and the lower spring 4b, and the upper metal contact piece 7 and the lower metal contact piece 6 are separated from each other, so that the ignition is stopped.

It should be noted that, in the description of the present embodiment, the terms "front, rear", "left, right", "upper, lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium.

Claims

1. The gas plug valve with the simplified ignition structure comprises a valve body (1) consisting of a valve seat (11) and a valve cover (12), wherein an air inlet channel (1 c) and an air outlet channel (1 d) are arranged on the valve seat (11), a valve core (3) is arranged in the valve body (1), and a valve rod (2) capable of driving the valve core (3) to rotate is arranged on the valve body (1) in a penetrating manner; the method is characterized in that: an insulating substrate (5) is fixed between the valve seat (11) and the valve cover (12), the valve core (3) upwards penetrates out of the insulating substrate (5), a lower annular metal contact piece (6) is fixed on the insulating substrate (5), and one end of the lower metal contact piece (6) is exposed out of the insulating substrate (5) to form a wiring end (61); the valve comprises a valve body (1), and is characterized by further comprising an annular upper metal contact piece (7), wherein the upper metal contact piece (7) is sleeved outside the valve core (3) and can move up and down, a connecting part (71) is arranged in the upper metal contact piece (7), the upper metal contact piece (7) is in conductive contact with the valve body (1), a spring cavity (31) with an upward opening is arranged at the upper part of the valve core (3), two notches (32) for the connecting part (71) to pass through are formed in the peripheral wall of the spring cavity (31), an upper spring (4 a) and a lower spring (4 b) are further arranged in the spring cavity (31), and the lower spring (4 b) acts on the bottom surface of the connecting part (71) to enable the upper metal contact piece (7) to keep moving upwards, and the upper spring (4 a) is supported between the top surface of the connecting part (71) and a valve rod (2); normally, the valve rod (2) keeps upward moving trend under the action of the upper spring (4 a) and the lower spring (4 b), and the upper metal contact piece (7) and the lower metal contact piece (6) are separated from each other; under the condition that the valve rod (2) is pressed down, the upper spring (4 a) and the lower spring (4 b) are pressed, and the upper metal contact piece (7) is driven to move down until being in contact conduction with the lower metal contact piece (6).

2. The simplified ignition architecture gas plug valve of claim 1, wherein: the valve seat (11), the insulating base plate (5) and the valve cover (12) are connected and fixed together through screws (13).

3. The simplified ignition architecture gas plug valve of claim 1, wherein: the bottom surface of the upper metal contact piece (7) is provided with a plurality of protruding points (72) at intervals along the circumferential direction.

4. The simplified ignition architecture gas plug valve of claim 1, wherein: the upper end face of the insulating substrate (5) is provided with an inner concave part (51), one side of the insulating substrate (5) is provided with a through hole (52) communicated with the inner concave part (51), the lower metal contact piece (6) is arranged in the inner concave part (51), one side of the lower metal contact piece (6) is provided with an extension part which extends outwards and enters the through hole (52), and the extension part forms a terminal (61) of the lower metal contact piece (6).

5. The simplified ignition architecture gas plug valve of claim 1, wherein: the lower end peripheral surface of the valve rod (2) is provided with a laterally protruding driving column (21), and the driving column (21) is inserted into one of the notches (32).

6. The simplified ignition structure gas plug valve according to any one of claims 1 to 5, characterized in that: the valve body (1) is internally provided with an electromagnetic valve cavity (1 a) and a valve core cavity (1 b), the valve core (3) is arranged in the valve core cavity (1 b), the air inlet channel (1 c) is communicated with the electromagnetic valve cavity (1 a), the air outlet channel (1 d) is communicated with the valve core cavity (1 b), the electromagnetic valve cavity (1 a) is communicated with the valve core cavity (1 b) through a valve port (1 e), the electromagnetic valve cavity (1 a) is internally provided with an electromagnetic valve (8), an armature (81) of the electromagnetic valve (8) can block or open the valve port (1 e), a push rod (9) penetrating through the bottom of the spring cavity (31) and entering the valve core cavity (1 b) is arranged in the spring cavity (31), the push rod (9) penetrates through the connecting part (71), and the upper spring (4 a) acts on an annular stop shoulder (91) at the top of the push rod (9) to keep the push rod (9) to move upwards to lean against the bottom surface of the valve rod (2); the push rod (9) can trigger the armature (81) of the electromagnetic valve (8) to move downwards along with the downward movement of the valve rod (2).

7. The simplified ignition architecture gas plug valve of claim 6, wherein: a sealing ring (92) sleeved on the push rod (9) is arranged in the spring cavity (31), and the lower end of the lower spring (4 b) is directly or indirectly supported on the sealing ring (92).

8. The simplified ignition architecture gas plug valve of claim 7, wherein: the lower end of the lower spring (4 b) is tightly pressed with the sealing ring (92) through a gasket (93) sleeved on the push rod (9).