CN220646878U - Safety gas valve - Google Patents

Abstract

The utility model discloses a safety gas valve, which comprises a valve body, wherein a rotatable main valve core is arranged in a valve cavity of the valve body, an air inlet channel, an air outlet channel and a safety channel are arranged on the valve body, an electromagnetic valve is arranged in the safety channel, and the electromagnetic valve comprises a movable safety valve core; the valve body is connected with a rotating shaft, a gland is arranged on the rotating shaft, a pushing structure is arranged between the gland and the safety valve core, and the rotating shaft moves up and down and rotates relative to the valve body; the rotating shaft moves downwards to drive the gland and the pushing structure to push the safety valve core to move forwards, the safety valve core is communicated with the air outlet channel after moving forwards, the main valve core is provided with a valve core through hole, the rotating shaft moves downwards to be connected with the main valve core, the rotating shaft drives the main valve core to rotate, and the air inlet channel and the safety channel are communicated with each other through the valve core through hole after the main valve core rotates. The main valve core and the safety valve core are arranged in the valve body to control the on-off of the air inlet channel and the air outlet channel, so that the valve is safe and reliable.

Description

Safety gas valve

Technical Field

The utility model relates to the technical field of valves, in particular to a safety gas valve.

Background

The gas valve is a safe matching device for gas pipeline engineering, is used for cutting off, connecting and adjusting gas in a pipeline, and has good control characteristics and closing sealing performance. For the gas valve in the gas stove, in order to improve the safety of the gas valve, the rotary shaft of the gas valve is generally required to be pressed first, the igniter is turned on, then the rotary shaft of the gas valve is turned, and the gas channel is turned on to realize gas inlet, so that the ignition of the gas stove is realized.

In the prior art, the gas valve is opened and closed by only using one valve core, and related safety components are absent, when the conditions such as soup splashing occur in the process of operating the gas stove, the soup splashing can extinguish the fire source of the gas stove, but the gas valve is still in air, the gas stove can be closed by manual operation of a user, so that the gas valve is not closed in time, the gas sprayed out of the gas valve can be mixed with air, and the gas is dispersed indoors, if the gas valve encounters open fire, explosion danger can occur, and potential safety hazards exist.

Moreover, the existing gas valve lacks a linkage switch, and only can open the igniter and realize the air inlet of the gas valve, so that the ignition of the gas stove is realized, the switching of other electric appliances in a kitchen, such as a kitchen ventilator and other devices, can not be realized, a user is required to manually switch on the switch of the kitchen ventilator, and the linkage performance is poor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a safe gas valve, wherein the valve body is internally provided with the main valve core and the safe valve core, so that the two valve cores control the on-off of the gas inlet channel and the gas outlet channel, and the safe gas valve is safe and reliable.

The utility model is realized by adopting the following technical scheme:

the safety gas valve comprises a valve body, wherein a rotatable main valve core is arranged in a valve cavity of the valve body, an air inlet channel, an air outlet channel and a safety channel are arranged on the valve body, a solenoid valve is arranged in the safety channel, and the solenoid valve comprises a movable safety valve core; the valve body is connected with a rotating shaft, a gland is arranged on the rotating shaft, a pushing structure is arranged between the gland and the safety valve core, and the rotating shaft moves up and down and rotates relative to the valve body; the rotating shaft moves downwards to drive the gland and the pushing structure to push the safety valve core to move forwards, the safety valve core is communicated with the air outlet channel after moving forwards, the main valve core is provided with a valve core through hole, the rotating shaft moves downwards to be connected with the main valve core, the rotating shaft drives the main valve core to rotate, and the air inlet channel and the safety channel are communicated with each other through the valve core through hole after the main valve core rotates.

Further, the electromagnetic valve further comprises an electromagnetic valve core, the electromagnetic valve core is matched with the safety valve core, the safety valve core is an iron core, electromagnetic force is generated after the electromagnetic valve core is electrified, the electromagnetic force is lost after the electromagnetic valve core is powered off, and the electromagnetic valve core is arranged in front of the safety valve core.

Further, the valve body is provided with an inclined slope for its return at the relief spool position, or a return spring is provided between the relief spool and the solenoid spool.

Further, the pushing structure is arranged on the valve body and comprises a push rod and a swing rod;

the ejector rod is arranged below the gland, the valve body is provided with a mounting through hole matched with the ejector rod, one end of the ejector rod extends out of the valve body, and the other end of the ejector rod extends into the valve body; the swing rod is arranged in the safety channel, the swing rod is arranged between the ejector rod and the safety valve core, one end of the swing rod is hinged with the valve body, and the other end of the swing rod is provided with a bending part for pushing the safety valve core; the rotating shaft moves downwards and drives the ejector rod to move downwards through the gland, the ejector rod pushes the swing rod to swing, and the swing rod pushes the safety valve core to move forwards.

Further, a reset spring is arranged on the swing rod; and/or the ejector rod is also provided with a return spring.

Further, the gland bush is established in the pivot, and the gland rotates with the pivot to be connected, and the gland is along with the pivot up-and-down motion, is provided with in the pivot and is used for with gland matched with locating part, and the gland is provided with first spout along its radial, and first spout cooperatees with the ejector pin.

Further, the main valve core is provided with a second chute along the axial direction of the main valve core, and the rotating shaft is provided with a shifting block matched with the second chute.

Further, an assembly through hole matched with the rotating shaft is formed in the valve body, and a reset spring is arranged between the rotating shaft and the main valve core.

Further, a spark switch is arranged outside the valve body, and the gland moves downwards along with the rotating shaft to trigger the spark switch, and the spark switch is connected with the spark device; the ignition switch comprises a first base body, a first contact is arranged at the top of the first base body, a spring piece is obliquely arranged above the first contact, one end of the spring piece is connected with the first base body, and the other end of the spring piece is suspended.

Further, a linkage switch is arranged outside the valve body, a pressing plate is arranged on the rotating shaft, the pressing plate triggers the linkage switch along with the rotation of the rotating shaft, and the linkage switch is connected with the smoke machine driving device; the linkage switch comprises a second seat body, and a second contact is arranged on the side face of the second seat body.

Compared with the prior art, the utility model has the beneficial effects that:

1. the valve body is internally provided with the main valve core and the safety valve core, so that the two valve cores control the on-off of the air inlet channel and the air outlet channel, and the valve is safe and reliable.

2. The utility model utilizes the pushing structure to trigger the electromagnetic valve, and pushes the safety valve core through the pushing structure in the downward movement process of the rotating shaft, thereby communicating the safety channel and the air outlet channel, and electrifying the electromagnetic valve; when the user is in the condition such as the hot water juice splash that appears in the in-process of operating the gas-cooker, the solenoid valve outage, the relief valve core resets and closes relief passage and air outlet channel, cuts off the air supply of gas valve, eliminates the potential safety hazard.

3. The utility model is provided with the ignition switch and the smoke switch outside the valve body, in the process of downward movement of the rotating shaft, the safety valve core of the electromagnetic valve is triggered, the safety channel and the air outlet channel are opened, the ignition switch is triggered to realize the ignition of the igniter, then in the process of rotation of the rotating shaft, the valve core through hole of the main valve core is communicated with the air inlet channel and the safety channel to realize the air inlet of the gas valve, and the linkage switch is triggered, so that the ignition of the gas stove and the linkage of the smoke suction of the smoke machine are realized in the process.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic exploded view of the present utility model.

Fig. 3 is a schematic front view of the present utility model.

FIG. 4 is a schematic cross-sectional view of the main valve element of the present utility model in the closed and relief valve element open position in the direction of FIG. 3 A-A.

FIG. 5 is a schematic cross-sectional view of FIG. 3B-B in the closed state of the main valve element and the relief valve element of the present utility model.

FIG. 6 is a schematic cross-sectional view of FIG. 3B-B in the closed state of the main valve element and the relief valve element of the present utility model.

FIG. 7 is a schematic cross-sectional view of the main valve element of the present utility model in the closed and safety valve element open position in the direction of FIG. 3C-C.

Fig. 8 is a schematic top view of the present utility model.

FIG. 9 is a schematic cross-sectional view of the main valve element of the present utility model in the closed and relief valve element open position in the direction of FIGS. 8D-D.

FIG. 10 is a schematic cross-sectional view of the main spool of the present utility model in the closed and relief spool open state in the direction of FIGS. 8E-E.

FIG. 11 is a schematic diagram of the connection between the rotary shaft and the valve core according to the present utility model.

FIG. 12 is a schematic view of a gland according to the present utility model

In the figure:

the valve comprises a valve body, a main valve core, a 3-air inlet channel, a 4-air outlet channel, a 5-safety channel, a 6-electromagnetic valve, a 61-safety valve core, a 7-rotating shaft, an 8-gland, a 9-pushing structure, a 91-ejector rod, a 92-swing rod, a 10-valve core through hole, a 11-reset spring, a 12-mounting through hole, a 13-limiting piece, a 14-first sliding groove, a 15-second sliding groove, a 16-shifting block, a 17-mounting through hole, an 18-ignition switch, a 181-first base, 182-first contacts, a 183-shrapnel, a 19-linkage switch, a 191-second base, 192-second contacts and a 20-pressing plate.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and detailed description below:

in the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The safety gas valve as shown in fig. 1-12 comprises a valve body 1, wherein a rotatable main valve core 2 is arranged in a valve cavity of the valve body 1, an air inlet channel 3, an air outlet channel 4 and a safety channel 5 are arranged on the valve body 1, an electromagnetic valve 6 is arranged in the safety channel 5, and the electromagnetic valve 6 comprises a movable safety valve core 61; the valve body 1 is connected with a rotating shaft 7, a gland 8 is arranged on the rotating shaft 7, a pushing structure 9 is arranged between the gland 8 and the safety valve core 61, and the rotating shaft 7 moves up and down and rotates relative to the valve body 1; the rotating shaft 7 moves downwards to drive the gland 8 and the pushing structure 9 to push the safety valve core 61 to move forwards, the safety valve core 61 moves forwards, the safety channel 5 and the air outlet channel 4 are communicated with each other, the main valve core 2 is provided with a valve core through hole 10, the rotating shaft 7 moves downwards to be connected with the main valve core 2, the rotating shaft 7 drives the main valve core 2 to rotate, and the air inlet channel 3 and the safety channel 5 are communicated with each other through the valve core through hole 10 after the main valve core 2 rotates.

Specifically, the valve cavity of the main valve core 2 and the valve body 1 are in clearance fit, the clearance between the main valve core 2 and the valve body 1 can be 0.008mm-0.012mm based on relative rotation but no air leakage, and the fit clearance is selected according to practical situations.

Based on the structure, the valve body 1 is internally provided with the main valve core 2 and the safety valve core 61, so that the two valve cores control the on-off of the air inlet channel 3 and the air outlet channel 4, and the valve is safe and reliable.

In the present utility model, the electromagnetic valve 6 further comprises an electromagnetic valve core, the electromagnetic valve core is matched with the safety valve core 61, the safety valve core 61 is an iron core, the electromagnetic valve core has electromagnetic force after being electrified, the electromagnetic valve core loses electromagnetic force after being powered off, and the electromagnetic valve core is arranged in front of the safety valve core 61.

It can be understood that after the pushing structure 9 triggers the electromagnetic valve 6, that is, after the pushing structure 9 pushes the safety valve core 61 to move forward to communicate the safety channel 5 with the air outlet channel 4, the electromagnetic valve 6 is electrified, the electromagnetic valve core attracts the safety valve core 61 through electromagnetic force, so that the safety channel 5 and the air outlet channel 4 keep an open communication state, when the soup is splashed, the electromagnetic valve 6 is powered off, the electromagnetic valve core loses electromagnetic force, the safety valve core 61 is reset under the action of gravity or the action of the reset spring 11, the safety channel 5 and the air outlet channel 4 are disconnected, and the air source of the gas valve is cut off; the solenoid valve 6 can be powered on by arranging a pressure sensor between the safety valve core 61 and the solenoid valve core, and the solenoid valve 6 is powered off by arranging a water immersion sensor and a temperature sensor in the gas stove to detect the splashing condition of the soup, so that the solenoid valve 6 is powered on and powered off in the prior art and will not be repeated here.

In the present utility model, the valve body 1 is provided with an inclined slope for its return at the position of the relief valve element 61, and the setting angle a of the inclined slope may be 30 degrees, 60 degrees, or the like, depending on the actual situation, in order that the relief valve element 61 may be returned.

In other embodiments, a return spring 11 is provided between the relief valve element 61 and the solenoid valve element, and the return of the relief valve element 61 is achieved by the return spring 11.

In the utility model, a pushing structure 9 is arranged on a valve body 1, and the pushing structure 9 comprises a push rod 91 and a swing rod 92; the ejector rod 91 is arranged below the gland 8, the valve body 1 is provided with a mounting through hole 12 for being matched with the ejector rod 91, one end of the ejector rod 91 extends out of the valve body 1, and the other end of the ejector rod 91 extends into the valve body 1; the swing rod 92 is arranged in the safety channel 5, the swing rod 92 is arranged between the ejector rod 91 and the safety valve core 61, one end of the swing rod 92 is hinged with the valve body 1, and the other end of the swing rod 92 is provided with a bending part for pushing the safety valve core 61; the rotating shaft 7 moves downwards and drives the ejector rod 91 to move downwards through the gland 8, the ejector rod 91 pushes the swing rod 92 to swing, and the swing rod 92 pushes the safety valve core 61 to move forwards.

In the present utility model, the swing link 92 is provided with a return spring 11; the ejector rod 91 is also provided with a return spring 11; the pushing structure 9 is reset through the reset spring 11 on the swing rod 92 and the reset spring 11 on the push rod 91.

In other embodiments, the swing rod 92 is provided with a return spring 11, and the ejector rod 91 may not be provided with the return spring 11, and the return of the swing rod 92 pushes the return of the ejector rod 91.

In general, the return spring 11 provided on the swing lever 92 is a torsion spring, and the return spring 11 provided on the jack 91 is a cylindrical spring.

Based on the structure, the pushing structure 9 is utilized to trigger the safety valve core 61 of the electromagnetic valve 6, the pushing structure 9 pushes the safety valve core 61 in the downward movement process of the rotating shaft 7, so that the safety channel 5 and the air outlet channel 4 are communicated, when the condition that soup splashes and the like occur in the process of operating the gas stove by a user, the electromagnetic valve 6 is powered off, the safety valve core 61 resets to close the safety channel 5 and the air outlet channel 4, the air source of the gas valve is cut off, and potential safety hazards are eliminated.

In the utility model, a gland 8 is sleeved on a rotating shaft 7, the gland 8 is rotationally connected with the rotating shaft 7, the gland 8 moves up and down along with the rotating shaft 7, a limiting piece 13 used for being matched with the gland 8 is arranged on the rotating shaft 7, a first chute 14 is arranged on the gland 8 along the radial direction of the gland, and the first chute 14 is matched with a push rod 91.

Specifically, the limiting piece 13 may realize that the gland 8 moves up and down along with the rotating shaft 7, and the limiting piece 13 may be a limiting step or a limiting snap ring, which is not limited according to practical situations.

In the utility model, the main valve core 2 is provided with a second chute 15 along the axial direction thereof, and the rotating shaft 7 is provided with a shifting block 16 matched with the second chute 15.

Specifically, the stroke of the shifting block 16 is determined by the depth of the second sliding groove 15, in this embodiment, the second sliding groove 15 is a U-shaped groove, the shifting block 16 is limited by the top of the valve cavity of the valve body 1, the lower limit position of the shifting block 16 is the lowest position of the second sliding groove 15, and the upper limit position of the shifting block 16 is the top of the valve cavity of the valve body 1.

In other embodiments, when the second sliding groove 15 is a 0 groove, the lower limit position of the shifting block 16 is the lowest position of the second sliding groove 15, and the upper limit position of the shifting block 16 may be the upper limit position of the second sliding groove 15.

In the utility model, an assembly through hole 17 matched with a rotating shaft 7 is arranged on a valve body 1, and a return spring 11 is arranged between the rotating shaft 7 and a main valve core 2.

In the above structure, the connection and guiding of the rotary shaft 7 and the valve core can be realized by the cooperation of the second sliding groove 15 and the shifting block 16, and the reset spring 11 can realize the reset of the rotary shaft 7.

In the utility model, a sparking switch 18 is arranged outside a valve body 1, a gland 8 moves downwards along with a rotating shaft 7 to trigger the sparking switch 18, and the sparking switch 18 is connected with a sparking device; the ignition switch 18 comprises a first base 181, a first contact 182 is arranged at the top of the first base 181, a spring plate 183 is obliquely arranged above the first contact 182, one end of the spring plate 183 is connected with the first base 181, and the other end of the spring plate 183 is suspended.

In the utility model, a linkage switch 19 is arranged outside a valve body 1, a pressing plate 20 is arranged on a rotating shaft 7, the pressing plate 20 triggers the linkage switch 19 along with the rotation of the rotating shaft 7, and the linkage switch 19 is connected with a smoke machine driving device; the interlock switch 19 includes a second housing 191, and a second contact 192 is provided on a side surface of the second housing 191.

It can be understood that the position and shape of the valve core through hole 10 on the main valve core 2 are adapted to the positions of the safety channel 5 and the linkage switch 19, and when the main valve core 2 rotates to the position that the valve core through hole 10 communicates the air inlet channel 3 with the safety channel 5, the pressing plate 20 just can trigger the linkage switch 19.

Based on the structure, the utility model is provided with the ignition switch 18 and the smoke switch outside the valve body 1, the safety valve core 61 of the electromagnetic valve 6 is triggered to open the safety channel 5 and the air outlet channel 4 in the downward movement process of the rotating shaft 7, the ignition switch 18 is triggered, the valve core through hole 10 of the main valve core 2 is communicated with the air inlet channel 3 and the safety channel 5 in the rotation process of the rotating shaft 7, the air inlet of the gas valve is realized, and the linkage switch 19 is triggered, so that the ignition of the gas stove and the linkage of the smoke and the oil suction of the smoke of the gas cooker are realized in the above processes.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.

Claims (10)

1. A safety gas valve, characterized in that: the valve comprises a valve body (1), wherein a rotatable main valve core (2) is arranged in a valve cavity of the valve body (1), an air inlet channel (3), an air outlet channel (4) and a safety channel (5) are arranged on the valve body (1), an electromagnetic valve (6) is arranged in the safety channel (5), and the electromagnetic valve (6) comprises a movable safety valve core (61);

the valve body (1) is connected with a rotating shaft (7), a gland (8) is arranged on the rotating shaft (7), a pushing structure (9) is arranged between the gland (8) and the safety valve core (61), and the rotating shaft (7) moves up and down and rotates relative to the valve body (1);

the rotary shaft (7) moves downwards to drive the gland (8) and the pushing structure (9) pushes the safety valve core (61) to move forwards, the safety valve core (61) moves forwards and then the safety channel (5) is communicated with the air outlet channel (4), a valve core through hole (10) is formed in the main valve core (2), the rotary shaft (7) moves downwards to be connected with the main valve core (2), the rotary shaft (7) drives the main valve core (2) to rotate, and after the main valve core (2) rotates, the air inlet channel (3) and the safety channel (5) are communicated with each other through the valve core through hole (10).

2. The safety gas valve according to claim 1, wherein: the electromagnetic valve (6) further comprises an electromagnetic valve core, the electromagnetic valve core is matched with the safety valve core (61), the safety valve core (61) is an iron core, electromagnetic force is generated after the electromagnetic valve core is electrified, the electromagnetic force is lost after the electromagnetic valve core is powered off, and the electromagnetic valve core is arranged in front of the safety valve core (61).

3. The safety gas valve according to claim 2, wherein: the valve body (1) is provided with an inclined slope for resetting the safety valve core (61) at the position of the safety valve core, or a reset spring (11) is arranged between the safety valve core (61) and the electromagnetic valve core.

4. The safety gas valve according to claim 1, wherein: the pushing structure (9) is arranged on the valve body (1), and the pushing structure (9) comprises a push rod (91) and a swing rod (92);

the ejector rod (91) is arranged below the gland (8), the valve body (1) is provided with a mounting through hole (12) for being matched with the ejector rod (91), one end of the ejector rod (91) extends out of the valve body (1), and the other end of the ejector rod (91) extends into the valve body (1);

the swing rod (92) is arranged in the safety channel (5), the swing rod (92) is arranged between the ejector rod (91) and the safety valve core (61), one end of the swing rod (92) is hinged with the valve body (1), and the other end of the swing rod (92) is provided with a bending part for pushing the safety valve core (61);

the rotary shaft (7) moves downwards and drives the ejector rod (91) to move downwards through the gland (8), the ejector rod (91) pushes the swing rod (92) to swing, and the swing rod (92) pushes the safety valve core (61) to move forwards.

5. The safety gas valve according to claim 4, wherein: a reset spring (11) is arranged on the swing rod (92);

and/or the ejector rod (91) is also provided with a return spring (11).

6. The safety gas valve according to claim 4, wherein: the gland (8) is sleeved on the rotating shaft (7), the gland (8) is rotationally connected with the rotating shaft (7), the gland (8) moves up and down along with the rotating shaft (7), a limiting piece (13) matched with the gland (8) is arranged on the rotating shaft (7), a first sliding groove (14) is formed in the gland (8) along the radial direction of the gland, and the first sliding groove (14) is matched with the ejector rod (91).

7. The safety gas valve according to claim 1, wherein: the main valve core (2) is provided with a second chute (15) along the axial direction of the main valve core, and the rotating shaft (7) is provided with a shifting block (16) matched with the second chute (15).

8. The safety gas valve according to claim 1, wherein: the valve body (1) is provided with an assembly through hole (17) matched with the rotating shaft (7), and a reset spring (11) is arranged between the rotating shaft (7) and the main valve core (2).

9. The safety gas valve according to any one of claims 1-8, characterized in that: a sparking switch (18) is arranged outside the valve body (1), the gland (8) moves downwards along with the rotating shaft (7) to trigger the sparking switch (18), and the sparking switch (18) is connected with a sparking device;

the ignition switch (18) comprises a first base body (181), a first contact (182) is arranged at the top of the first base body (181), an elastic sheet (183) is obliquely arranged above the first contact (182), one end of the elastic sheet (183) is connected with the first base body (181), and the other end of the elastic sheet (183) is suspended.

10. The safety gas valve according to any one of claims 1-8, characterized in that: a linkage switch (19) is arranged outside the valve body (1), a pressing plate (20) is arranged on the rotating shaft (7), the pressing plate (20) triggers the linkage switch (19) along with the rotation of the rotating shaft (7), and the linkage switch (19) is connected with a smoke machine driving device;

the linkage switch (19) comprises a second seat body (191), and a second contact (192) is arranged on the side face of the second seat body (191).