A ball core of a gas valve and a gas valve

Abstract

The utility model relates to the technical field of gas valve accessories, and propose a kind of ball core of gas valve and gas valve, a kind of ball core of gas valve, including the ball valve of rotation setting in gas valve, the ball valve includes: variable cross section input air channel, the variable cross section input air channel is set to ball valve surface, variable cross section input air channel is used to connect gas valve gas inlet end, by rotating ball valve makes variable cross section input air channel different position with gas valve gas inlet end opposite to change ventilation volume;Output air channel structure, the output air channel structure includes the internal air channel being set to ball valve interior and with the output end communication of variable cross section input air channel and the small fire gas outlet and the big fire gas outlet being all with internal air channel output end communication;Sealing spherical surface, when the sealing spherical surface is opposite to gas valve gas inlet end, prevent gas input.Output air channel structure contains internal air channel, small fire gas outlet and big fire gas outlet, so that gas can be output by different outlet, satisfy the firepower demand of small fire, big fire and the like.

Claims

1. A ball core of a gas valve comprising a ball valve (1) rotatably arranged in a gas valve (2), characterized in that The ball valve (1) includes: A variable cross-section input air passage (3) is provided on the surface of a ball valve (1). The variable cross-section input air passage (3) is used to connect to the gas inlet end of a gas valve (2). By rotating the ball valve (1), the variable cross-section input air passage (3) is positioned opposite to the gas inlet end of the gas valve (2) to change the air flow rate. The output air passage structure includes an internal air passage (8) located inside the ball valve (1) and connected to the output end of the variable cross-section input air passage (3), as well as a small fire gas outlet (1.1) and a large fire gas outlet (1.2) both connected to the output end of the internal air passage (8). The sealing spherical surface (5) prevents gas input when it is opposite to the gas inlet end of the gas valve (2).

2. The ball core of the gas valve according to claim 1, characterized in that, The output gas passage structure includes an ignition gas output port (1.3) that is connected to the output end of the internal gas passage (8).

3. The ball core of the gas valve according to claim 2, characterized in that, Both ends of the internal air passage (8) are connected to the inner cavity of the ball valve (1). The first end of the internal air passage (8) opens to form a small flame gas outlet (1.1), and the second end of the internal air passage (8) opens to form an ignition gas output port (1.3). The ball valve (1) is provided with an air outlet (9) that connects to the internal air passage (8). The air outlet (9) is provided with a third end opening that forms a large flame gas outlet (1.2). The large flame gas outlet (1.2) of the air outlet (9) is located in the direction below the small flame gas outlet (1.1).

4. The ball core of the gas valve according to claim 1, characterized in that, The variable cross-section input air passage (3) includes a vent hole (7) located at the output end of the variable cross-section input air passage (3). The ball valve (1) is provided with a groove-shaped air outlet (9). The air outlet (9) and the vent hole (7) are arranged opposite each other in an up-down staggered manner, and the vent hole (7) is connected to the internal air passage (8).

5. The ball core of the gas valve according to claim 4, characterized in that, The variable cross-section input air passage (3) includes a slot (6), one end of which is used as the input end of the variable cross-section input air passage (3), and the other end of which is connected to the vent (7). The width of the slot (6) gradually increases along the output direction of the variable cross-section input air passage (3).

6. A gas valve characterized by: The gas valve (2) is provided with a ball core of the gas valve according to any one of claims 1-5; The gas valve (2) is provided with a vent chamber (10) for installing the ball valve (1), and the vent chamber (10) is provided with a limiting component (11) for limiting the circumferential rotation of the ball valve (1). The limiting component (11) includes a first limiting member (12) and a second limiting member (13) arranged at left and right intervals, and the ball valve (1) is located between the first limiting member (12) and the second limiting member (13); Both the first limiting member (12) and the second limiting member (13) are provided with arc-shaped recesses (14) that are adapted to the sealing spherical surface (5). During the rotation of the ball valve (1), the sealing spherical surface (5) is limited between the arc-shaped recesses (14) of the two limiting members.

7. The gas valve according to claim 6, characterized in that: The gas valve (2) is provided with an air inlet (4). The air inlet (4), the first limiting member (12), the ball valve (1) and the second limiting member (13) are arranged in a transverse axial direction. The first limiting member (12) is provided with an opening (15) forming the air outlet end of the air inlet (4), and the second limiting member (13) is provided with an opening (16). The gas valve (2) is equipped with a switch valve (36) for opening and closing the air intake end of the air intake channel (4), and the switch valve (36) is a solenoid valve. When the intake end of the intake passage (4) is opened, the sealing spherical surface (5) rotates with the ball valve (1) to connect the input end of the variable cross-section input passage (3) and the opening (15). Gas enters the internal passage (8) of the ball valve (1) from the opening (15) along the variable cross-section input passage (3). Gas is output to the small flame gas outlet (1.1) or to the ignition gas output port (1.3) of the output gas passage structure. Alternatively, when the intake end of the intake passage (4) is open, and the sealing ball (5) rotates with the ball valve (1) to connect the output end of the variable cross-section input passage (3) and the opening (15), the opening (16) is connected to the large fire gas outlet (1.2), and the gas enters the internal passage (8) of the ball valve (1) from the opening (15) along the variable cross-section input passage (3), and the gas is output to the small fire gas outlet (1.1) and the large fire gas outlet (1.2).

8. A gas valve characterized by: The gas valve (2) is provided with a ball core of the gas valve according to any one of claims 2-5; The gas valve (2) is provided with a valve sleeve (17), which is connected to the ball valve (1) and rotatably disposed inside the gas valve (2); The valve sleeve (17) is provided with a movable rod assembly (21) that can move elastically up and down. An air inlet gap (22) is provided between the movable rod assembly (21) and the valve sleeve (17). The movable rod assembly (21) opens or closes the air inlet of the air inlet gap (22) by moving up and down. The gas valve (2) is provided with an ignition channel (47), and the air inlet of the air inlet gap (22) is in the open state. The ignition gas output port (1.3), the air inlet gap (22) and the ignition channel (47) are connected in sequence. The gas valve (2) is provided with a first gas passage (45) that connects to the small flame gas outlet (1.1); The gas valve (2) is equipped with a second gas passage (46) that connects to the gas outlet (1.2) of the main fire.

9. The gas valve of claim 8, wherein: The movable rod assembly (21) includes a rod (23) that is axially movable inside the valve sleeve (17), and an air intake gap (22) is provided between the outer side of the rod (23) and the inner side of the valve sleeve (17). The rod (23) has a first sealing element (24) below the head for opening and closing the air inlet of the air inlet gap (22); the rod (23) has a second sealing element (25) at the lower part for sealing the installation gap between the rod (23) and the valve sleeve (17). The valve sleeve (17) is provided with a side opening (31) for connecting the ignition channel (47), and the side opening (31) is located above the second seal (25); The lower outer side of the rod (23) is provided with a first spring (26), the lower part of the rod (23) corresponding to the second seal (25) is provided with a first gasket (27), the lower part of the rod (23) corresponding to the first spring (26) is provided with a second gasket (28), and the rod (23) corresponding to the second gasket (28) is provided with an anti-disengagement snap ring (29) to prevent the second gasket (28) from falling outward; the first spring (26) is limited to the upper and lower positions between the first gasket (27) and the second gasket (28), the rod (23) moves up and down elastically through the first spring (26), and the rod (23) is elastically reset through the first spring (26) to close the air inlet of the air inlet gap (22) again.

10. The gas valve of claim 9, wherein: The gas valve (2) is provided with a rotating shaft (32), which has the ability to move up and down and rotate in the circumferential direction. One end of the rotating shaft (32) is inserted into the lower inner cavity of the valve sleeve (17). When the rotating shaft (32) moves axially toward the movable rod assembly (21), it opens the air intake port of the air intake gap (22); When the rotating shaft (32) rotates circumferentially, it drives the ball valve (1) and the valve sleeve (17) to rotate. The gas valve (2) is provided with an air inlet (4) and a switch valve (36) for opening and closing the air inlet (4). The gas valve (2) is provided with a swing block (37) and a linkage rod (38). The swing block (37) is oscillating inside the gas valve (2), and the linkage rod (38) is inclined inside the gas valve (2). The valve sleeve (17) is provided with an upper pressure block (39), a second spring (40) and a lower pressure block (41) on the lower outer side. The rotating shaft (32) passes through the lower pressure block (41) and the second spring (40) and is inserted into the lower part of the valve sleeve (17). When the rotating shaft (32) moves axially toward the moving rod assembly (21), it triggers the lower pressure block (41) to drive the linkage rod (38) to rotate the swing block (37). The swing block (37) rotates and acts on the switching valve (36) to open the air intake end of the air intake passage (4).

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