CN219082323U - Gas valve and gas stove comprising same - Google Patents

Abstract

The utility model provides a gas valve and a gas stove comprising the same, the gas valve comprises a first gas channel, a second gas channel and a third gas channel which are adjacently arranged, a first communication hole is arranged between the first gas channel and the second gas channel, a second communication hole is arranged between the second gas channel and the third gas channel, the first communication hole and the second communication hole are coaxially arranged, and the gas valve further comprises: the control mechanism is provided with a moving shaft which sequentially stretches into the second communication hole and the first communication hole and moves in a reciprocating mode along the axis direction of the first communication hole, the first sealing member is fixedly connected to the end portion of the moving shaft, the second sealing member is sleeved on the moving shaft, an elastic member is arranged between the second sealing member and the shell of the control mechanism, a limiting portion is arranged on the moving shaft corresponding to the second sealing member and used for limiting the second sealing member to be close to the first sealing member, and the elastic member provides elastic force towards the second communication hole for the second sealing member.

Description

Gas valve and gas stove comprising same

Technical Field

The utility model relates to the technical field of gas cookers, in particular to a gas valve and a gas cooker comprising the same.

Background

With the continuous development of life, more and more abundant food materials enter the dining table of people, and the different ways of cooking different food materials lead to the user to the requirement of gas kitchen ranges to be more and more various, these requirements are mainly the requirement of gas control in the gas kitchen ranges, for example: as shown in fig. 1, if the inner ring gas passage 1' and the outer ring gas passage 2' in the gas valve are to be simultaneously communicated with one to-be-intake passage 3', the inner ring gas passage 1', the to-be-intake passage 3' and the outer ring gas passage 2' are generally arranged in parallel, and communication holes 100' are opened between the inner ring gas passage 1' and the to-be-intake passage 3', and between the to-be-intake passage 3' and the outer ring gas passage 2 '.

Thereafter, as shown in fig. 2, two solenoid valves capable of driving the piston to move are provided to block the two communication holes 100', respectively. If a user needs to make the inner ring gas channel 1 'and the outer ring gas channel 2' communicate with the to-be-intake channel 3', an electric signal is sent to the two electromagnetic valves, so that the two pistons respectively move relative to the communication hole 100' to make the inner ring gas channel 1', the to-be-intake channel 3' and the outer ring gas channel 2 'communicate, and due to the consideration of gas tightness, the electromagnetic valves corresponding to the number of the communication holes 100' are required to be arranged to drive the corresponding pistons to seal the communication holes 100 'so as to avoid the safety problem caused by gas leakage, therefore, the current gas valve realizes the communication and the closing between multiple paths of gas channels, and a plurality of electromagnetic valves are required to be arranged to drive the pistons to open and close relative to the communication holes 100', so that the number of parts of the gas valve is large, the structure is complex, and the cost is high.

Disclosure of Invention

The utility model aims to overcome the defects of complex structure and high cost in the prior art that a gas valve in a gas stove realizes the communication and closing of multiple paths of gas channels, and provides a gas valve and a gas stove comprising the same.

The utility model solves the technical problems by the following technical scheme:

the utility model provides a gas valve, its includes adjacent first gas passageway, second gas passageway and the third gas passageway that sets up, first gas passageway with be equipped with first communication hole between the second gas passageway, the second gas passageway with be equipped with the second intercommunicating pore between the third gas passageway, first communication hole with the coaxial setting of second intercommunicating pore, the gas valve still includes: the control mechanism is provided with a moving shaft which sequentially stretches into the second communication hole and the first communication hole and moves in a reciprocating mode along the axis direction of the first communication hole, the first sealing piece is fixedly connected to the end portion of the moving shaft, the second sealing piece is sleeved on the moving shaft, an elastic piece is arranged between the second sealing piece and a shell of the control mechanism, a limiting portion is arranged on the moving shaft corresponding to the second sealing piece, the limiting portion is used for limiting the second sealing piece to be close to the first sealing piece, and the elastic piece provides elastic force for the second sealing piece to face the second communication hole.

In this scheme, first communication hole and the coaxial setting of second communication hole, make things convenient for control mechanism's motion axle to penetrate simultaneously, and the motion axle is reciprocating motion along first communication hole direction, through set up first sealing member at the tip of motion axle so that the motion axle can open and seal first communication hole at reciprocating motion in-process.

And, the second sealing member cover is established on the motion axle, through further setting up spacing portion in order to drive the second sealing member and remove in order to open the second intercommunicating pore when the motion axle is moving towards the direction of opening, simultaneously, the motion axle is when the direction of closing motion, the second sealing member still hugs closely in the second intercommunicating pore through the elasticity that the elastic component provided to ensure the sealed effect of second sealing member to the second intercommunicating pore, avoid the motion axle to drive first sealing member and second sealing member simultaneously and remove and the sealed condition that the second sealing member is sealed not in place when first communication hole and second intercommunicating pore.

This structure sets up the scheme, can realize opening and closing of multichannel gas passageway simultaneously through setting up single control mechanism, and because the spacing relation of second sealing member for the motion axis to and the elasticity that the elastic component provided, can ensure the sealed effect of second sealing member to the second intercommunicating pore.

Preferably, the size of the second communicating hole is larger than the size of the first communicating hole, and the size of the second sealing member is larger than the size of the second communicating hole.

In this scheme, the second sealing member lid is located on the second intercommunicating pore in order to realize sealed second intercommunicating pore, and the size of second intercommunicating pore is greater than first intercommunicating pore makes the gas volume that gets into the third gas passageway through the second intercommunicating pore correspondingly increase, and then satisfies the user to the demand of higher thermal efficiency, simultaneously, avoids the motion axle to appear interfering at shrink in-process first sealing member and second intercommunicating pore.

Preferably, a limiting groove is formed in one side, close to the first sealing piece, of the second sealing piece, and the limiting portion is clamped in the limiting groove along the moving direction of the moving shaft.

In this scheme, the spacing groove is used for cooperating with the epaxial spacing portion of motion to make the motion axle be close to first sealing member under the elasticity effect of elastic component in the motion in-process second sealing member and spacing through spacing portion and spacing groove in the epaxial position of motion, prevent when needs open the second intercommunicating pore, the second intercommunicating pore is closed by the elastic component mistake and leads to the third gas passageway that should open by the mistake to be closed.

Preferably, the size of the elastic piece is smaller than that of the second sealing piece, the second sealing piece and the shell are provided with protrusions, the distance between the protrusions and the axis of the second sealing piece is smaller than that of the second sealing piece and the shell, the elastic piece is sleeved on the protrusions, and the end portions of the elastic piece are respectively abutted to the second sealing piece and the shell.

In this scheme, the elastic component cover is located on protruding and the both ends of elastic component butt second sealing member and control mechanism's casing respectively, is used for restricting the elastic component and removes along the direction perpendicular with the direction of motion axle through setting up the arch, avoids the elastic component dislocation to lead to its elasticity that provides the second sealing member to receive the influence, and then guarantees the leakproofness of second intercommunicating pore.

Preferably, the size of the first sealing member is consistent with the size of the first communicating hole.

In the scheme, the size of the first sealing piece is kept consistent with that of the first communicating hole, so that the first communicating hole can be sealed when the moving shaft stretches into the first communicating hole when the moving shaft stretches out of the shell of the control mechanism, and the moving range of the moving shaft is improved.

Preferably, the end part of the moving shaft far away from the control mechanism is provided with a clamping part, the first sealing piece is provided with a clamping groove, and the first sealing piece is clamped at the end part of the moving shaft.

In this scheme, motion axle and first sealing member joint to make first sealing member can replace correspondingly, improved reuse rate, reduced the cost of gas valve.

Preferably, the first sealing member and the second sealing member are made of rubber.

In this scheme, the first sealing member of rubber material and second sealing member its cost are lower, and sealed effect is better.

Preferably, the control mechanism is electrically connected with the gas valve.

In this scheme, the control mechanism is controlled through the gas valve, that is to say when the gas valve enters the specific mode, the specific mode means that when the first communication hole and the second communication hole need to be opened, the control mechanism is correspondingly driven by an electric control mode to smoothly open the first communication hole and the second communication hole.

Preferably, an end portion of the first seal member contacting the first communication hole is tapered.

In this scheme, because of the motion axle can stretch into in the first communication hole and stretch into first sealing member in the first communication hole to seal the first communication hole, through setting up the tip of first sealing member into the toper structure and leading when stretching into first communication hole to the motion axle, improve sealed success rate.

A gas stove comprising a gas valve as described above.

In this scheme, when this gas-cooker adopted above-mentioned gas valve to make gas-cooker open first communication hole and second intercommunicating pore, first communication hole and second intercommunicating pore can open in step, and the same reason, first sealing member and second sealing member all set up on the motion axle, and the motion axle can drive first sealing member and second sealing member and close first communication hole and second intercommunicating pore in step, and then sealed first communication hole and second intercommunicating pore in step, avoids because of the security problem that first communication hole or second intercommunicating pore lead to because of sealed not in place.

The utility model has the positive progress effects that: according to the utility model, the first communication hole and the second communication hole are coaxially arranged and extend into the first communication hole and the second communication hole through the movement shaft of the control mechanism to do reciprocating movement, the first sealing element and the second sealing element are arranged on the movement shaft and used for sealing the first communication hole and the second communication hole, further, the position of the second sealing element on the movement shaft is limited by the limiting part arranged on the movement shaft, so that the second communication hole is prevented from being opened by the second sealing element when the movement shaft contracts, and meanwhile, the elastic element is abutted against the second sealing element, so that the tightness of the second communication hole is ensured when the second communication hole is closed, the structure is simple, the cost is low, the first sealing element and the second sealing element realize synchronous opening or sealing while the sealing effect is correspondingly improved, and the situation that the driving of the first sealing element or the second sealing element is asynchronous or poor in sealing performance is avoided when the first sealing element or the second sealing element is singly driven is avoided.

Drawings

Fig. 1 is a sectional view showing an internal structure of a gas valve according to the prior art.

Fig. 2 is a schematic diagram of a positional relationship between a to-be-intake passage and a piston of a gas valve in the prior art.

Fig. 3 is a perspective view of a gas valve according to an embodiment of the present utility model.

Fig. 4 is a top view of a gas valve according to an embodiment of the present utility model.

Fig. 5 is a partial cross-sectional view of A-A of fig. 4.

Reference numerals illustrate:

the prior art comprises the following steps:

inner ring gas channel 1'

Outer ring gas channel 2'

To-be-intake passage 3'

Communication hole 100'

The utility model comprises the following steps:

inner ring gas channel 1

Outer ring gas channel 2

First gas passage 4

Second gas passage 5

Third gas passage 6

Control mechanism 7

Motion axis 71

Limit part 8

Limiting groove 81

Elastic member 9

First communication hole 10

First seal 11

Second communication hole 20

Second seal 21

Detailed Description

The utility model will now be more fully described by way of example only and with reference to the accompanying drawings, but the utility model is not thereby limited to the scope of the examples.

The embodiment provides a gas valve, which not only reduces manufacturing cost, but also has better tightness, the specific structure is shown in fig. 3, 4 and 5, the gas valve comprises an inner ring gas channel 1 and an outer ring gas channel 2, the inner ring gas channel 1 and the outer ring gas channel 2 are respectively used for supplying gas to the inner ring and the outer ring of a burner communicated with the gas valve, and the inner ring gas channel 1 and the outer ring gas channel 2 are correspondingly opened along with the rotation of a valve rod of the gas valve so as to meet the normal fire adjusting requirement of the gas valve, which is not repeated in the prior art.

The gas valve further comprises a first gas channel 4, a second gas channel 5 and a third gas channel 6 which are arranged adjacent to the inner ring gas channel 1 and the outer ring gas channel 2, wherein the first gas channel 4, the second gas channel 5 and the third gas channel 6 are communicated with a closure member of the gas valve and are positioned at different positions of the closure member along the height direction, which is the prior art, and redundant description is omitted herein. The second gas channel 5 is further communicated with the inner ring gas channel 1, the third gas channel 6 is further communicated with the outer ring gas channel 2, the first gas channel 4 and the second gas channel 5 are communicated and provided with a first communication hole 10, the second gas channel 5 and the third gas channel 6 are communicated and provided with a second communication hole 20, and the first communication hole 10 and the second communication hole 20 are coaxially arranged and are all round holes. Furthermore, the gas valve further includes: the control mechanism 7, the first sealing element 11 and the second sealing element 21, the control mechanism 7 is provided with a moving shaft 71, the moving shaft 71 stretches out of the shell of the control mechanism 7, the end part of the moving shaft 71, which is far away from the shell, sequentially stretches into the first communication hole 10 and the second communication hole 20, the moving shaft 71 can reciprocate along the axial direction of the first communication hole 10 or the second communication hole 20, the first sealing element 11 is of a cylindrical structure and is arranged at the end part of the moving shaft 71, which is far away from the shell, the second sealing element 21 is of a circular ring shape and comprises an inner ring, the inner ring is sleeved on the moving shaft 71, the moving shaft 71 is correspondingly provided with a limiting part 8, the limiting part 8 is a protruding block, in particular an annular protruding block, the size of the limiting part 8 is larger than the inner ring size of the second sealing element 21 sleeved on the moving shaft 71, the limiting part 8 is arranged on one side of the second sealing element 21, which is close to the first sealing element 11, so that the second sealing element 21 sleeved on the moving shaft 71 is in the direction of the shell, when the moving shaft 71 contracts and moves towards the shell, namely, the third gas channel 6 is limited, the second sealing element 21 is close to the first sealing element 11, and the first sealing element 11 is prevented from being opened, and the third gas channel 6 is prevented from being opened.

In addition, an elastic member 9 is arranged between the second sealing member 21 and the casing of the control mechanism 7, the elastic member 9 is a spring, the spring 9 provides the elastic force of the second sealing member 21 towards the second communication hole 20, when the second gas passage 5 and the third gas passage 6 are closed, the first sealing member 11 is driven to extend into the first communication hole 10 through the moving shaft 71, the second gas passage 5 is correspondingly closed, the second sealing member 21 is tightly attached to the second communication hole 20 through the elastic force provided by the elastic member 9, and the third gas passage 6 is correspondingly closed, so that the second gas passage 5 and the third gas passage 6 are synchronously opened or closed through the same control mechanism 7, the manufacturing cost of the gas valve is reduced, the sealing performance of the second communication hole 20 can be correspondingly improved by the elastic member 9, the reciprocating movement range of the moving shaft 71 of the control mechanism 7 is increased, namely the distance of the moving shaft 71 extending into the first communication hole 10 is increased, the sealing performance of the first communication hole 10 is ensured, and the condition that the second communication hole 20 is not sealed in place when the first communication hole 10 is sealed is avoided.

Further, the size of the second communication hole 20 is larger than the size of the first communication hole 10, so that the amount of fuel gas entering the third fuel gas channel 6 through the second communication hole 20 is correspondingly increased, thereby meeting the requirement of a user for higher heat efficiency, when the moving shaft 71 is contracted, the first sealing member 11 can be contracted into the second fuel gas channel 5 or the second communication hole 20, and since the size of the first communication hole 10 is smaller than the size of the second communication hole 20, that is, when the first sealing member 11 is contracted into the second communication hole 20 along with the moving shaft 71, the second communication hole 20 still keeps an open state, thereby avoiding the error closing of the third fuel gas channel 6 due to the overlarge contraction stroke of the moving shaft 71.

The size of the second sealing member 21 is larger than the size of the second communication hole 20, that is, the second sealing member 21 covers the second communication hole 20 to seal the second communication hole 20, and when the moving shaft 71 extends into the first communication hole 10 and the second communication hole 20, the second sealing member 21 always keeps being attached to the second communication hole 20, so that the second gas channel 5 is prevented from being closed by mistake due to the excessive extending stroke of the moving shaft 71.

Wherein, one side of the second sealing element 21 near the first sealing element 11 is provided with a limit groove 81, the limit groove 81 is an annular groove, the limit groove 81 is matched with the shape of the limit part 8 and is used for clamping the limit part 8 along the shrinkage direction of the moving shaft 71, so that the position of the second sealing element 21 on the moving shaft 71 is limited by the limit part 8 and the limit groove 81 when the second sealing element 21 approaches the first sealing element 11 under the elastic force of the elastic element 9 in the shrinkage process of the moving shaft 71, and the second communication hole 20 is prevented from being closed by the elastic element 9 by mistake to cause the third gas channel 6 to be opened by mistake when the second communication hole 20 needs to be opened.

In this embodiment, the second sealing member 21 and the housing are provided with protrusions, the protrusions are in an annular structure coaxial with the second sealing member 21, the distance between the edges of the protrusions and the axis of the second sealing member 21 is smaller than the dimensions of the second sealing member 21 and the housing, the elastic member 9 is in a spiral structure and is wound with an inner ring, the inner ring is sleeved on the protrusions and limits displacement of two ends of the elastic member 9 in the direction perpendicular to the movement direction of the movement shaft 71 through the protrusions, the elastic member 9 is further enabled to always keep elastic force provided for the second sealing member 21, and the influence of the elastic force provided for the second sealing member 21 due to dislocation of the elastic member 9 is avoided, so that the tightness of the second communication hole 20 is further affected.

In the present embodiment, the size of the first seal 11 coincides with the size of the first communication hole 10.

Specifically, the moving shaft 71 can be inserted into the first communication hole 10, and in order to secure the sealability of the first communication hole 10, the size of the first seal 11 is set to be the same as the size of the first communication hole 10, the first seal 11 is driven by the moving shaft 71 and inserted into the first communication hole 10 to seal the first communication hole 10 through the outer peripheral side of the first seal 11, and at the same time, the movement stroke response of the moving shaft 71 of the control mechanism 7 can be increased to secure the synchronous sealing of the first communication hole 10 and the second communication hole 20.

Further, the end of the first seal 11 contacting the first communication hole 10 is tapered. The tip that first sealing member 11 stretched into in the first communication hole 10 sets up to be the toper structure, and when motion axle 71 drive first sealing member 11 stretched into in the first communication hole 10, direction first sealing member 11 through the toper structure to improve the success rate that first sealing member 11 got into in the first communication hole 10, and then improve the success rate of sealed first communication hole 10, improve the safety in utilization of gas valve.

As shown in fig. 5, in this embodiment, a joint groove is formed at a joint between the first seal 11 and the moving shaft 71, a joint portion is formed at a joint between the moving shaft 71 and the first seal 11, the joint groove is an arc groove, the joint portion is of an arc structure, and the first seal 11 is fastened in the joint groove through the arc structure, so that the first seal 11 can correspondingly move along with the first seal 11 when moving along with the moving shaft 71, for example, when the second gas channel 5 needs to be opened, the moving shaft 71 is contracted, the first seal 11 correspondingly moves and cannot stay in the first communication hole 10, and when the second gas channel 5 needs to be closed, the moving shaft 71 extends into the first communication hole 10, and the first seal 11 correspondingly extends into the first communication hole 10 and seals the first communication hole 10 through the first seal 11.

Meanwhile, the first sealing element 11 and the moving shaft 71 are detachably connected through the clamping part and the clamping groove, so that the first sealing element 11 can be maintained in a direct replacement mode during maintenance, the repeated use rate is improved, and the maintenance cost of the gas valve is reduced.

The first sealing member 11 and the second sealing member 21 in this embodiment are made of rubber, which has good sealing property and plasticity, so that the sealing member is widely used in the environment to be sealed, and meanwhile, the manufacturing cost of the first sealing member 11 and the second sealing member 21 made of rubber is lower, and the sealing member is easy to store.

In this embodiment, the control mechanism 7 is electrically connected to the gas valve.

Specifically, the control mechanism 7 in this embodiment employs a solenoid valve to realize the reciprocating movement of the moving shaft 71, the housing of the solenoid valve is used to cover the internal structure of the solenoid valve, and at the same time, the housing is used to cooperate with the elastic member 9 to provide the second sealing member 21 with corresponding elastic force, and the solenoid valve is electrically connected with the gas valve, and when the gas valve enters a specific mode due to the user's requirement, that is, the second gas channel 5 and the third gas channel 6 are synchronously opened, the moving shaft 71 of the control mechanism 7 is correspondingly driven to reciprocate in an electrically controlled manner and smoothly opens the first communication hole 10 and the second communication hole 20. Similarly, when the gas valve exits the specific mode, that is, when the second gas passage 5 and the third gas passage 6 need to be closed simultaneously, the moving shaft 71 contracts and closes the first communication hole 10 and the second communication hole 20, respectively. By arranging the first seal 11 and the second seal 21 on the same moving shaft 71 and synchronously opening or closing the second gas passage 5 and the third gas passage 6, the manufacturing cost is lower compared with a single piston, and the first seal 11 and the second seal 21 are simultaneously driven to open or close the second gas passage 5 and the third gas passage 6 by the same moving shaft 71, so that the structure is simpler, the synchronism of opening and closing is higher, and the operation is simpler.

In addition, the embodiment also provides a gas stove, which comprises the gas valve.

Specifically, when the gas valve is adopted in the gas stove to open the second gas channel 5 and the third gas channel 6, the moving shaft 71 drives the first sealing element 11 to be far away from the first communication hole 10 and drives the second sealing element 21 to be far away from the second communication hole 20, the first communication hole 10 and the second communication hole 20 can be synchronously opened, similarly, when the second gas channel 5 and the third gas channel 6 are closed, the moving shaft 71 drives the first sealing element 11 to extend into the first communication hole 10, and the elastic force of the elastic element 9 pushes the second sealing element 21 to cover the second communication hole 20, so that the first communication hole 10 and the second communication hole 20 can be synchronously closed, and further the first communication hole 10 and the second communication hole 20 are synchronously sealed, so that the problem of safety in use of the gas valve caused by the fact that the first communication hole 10 or the second communication hole 20 is not sealed in place is avoided.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (10)

1. The utility model provides a gas valve, its includes adjacent first gas passageway, second gas passageway and the third gas passageway that sets up, first gas passageway with be equipped with first communication hole between the second gas passageway, the second gas passageway with be equipped with the second intercommunicating pore between the third gas passageway, its characterized in that, first communication hole with the coaxial setting of second intercommunicating pore, gas valve still includes: the control mechanism is provided with a moving shaft which sequentially stretches into the second communication hole and the first communication hole and moves in a reciprocating mode along the axis direction of the first communication hole, the first sealing piece is fixedly connected to the end portion of the moving shaft, the second sealing piece is sleeved on the moving shaft, an elastic piece is arranged between the second sealing piece and a shell of the control mechanism, a limiting portion is arranged on the moving shaft corresponding to the second sealing piece, the limiting portion is used for limiting the second sealing piece to be close to the first sealing piece, and the elastic piece provides elastic force for the second sealing piece to face the second communication hole.

2. The gas valve of claim 1, wherein the second communication aperture has a size greater than the first communication aperture, and the second seal has a size greater than the second communication aperture.

3. The gas valve of claim 1, wherein a limiting groove is formed in a side, close to the first sealing element, of the second sealing element, and the limiting portion is clamped in the limiting groove along the movement direction of the movement shaft.

4. The gas valve as set forth in claim 1, wherein said elastic member has a smaller size than said second seal member, said second seal member and said housing are provided with protrusions, said protrusions are located at a smaller distance from an axis of said second seal member than said second seal member and said housing, said elastic member is fitted over said protrusions and ends of said elastic member are abutted against said second seal member and said housing, respectively.

5. The gas valve of claim 1, wherein the first seal has a size that corresponds to a size of the first communication hole.

6. The gas valve of claim 5, wherein an end of the moving shaft remote from the control mechanism is provided with a snap-fit portion, the first seal is provided with a snap-fit groove, and the first seal is snapped onto the end of the moving shaft.

7. The gas valve of claim 1, wherein the first seal and the second seal are rubber materials.

8. The gas valve of claim 1, wherein the control mechanism is electrically connected to the gas valve.

9. The gas valve as set forth in claim 1, wherein an end of said first seal in contact with said first communication hole is tapered.

10. A gas burner comprising a gas valve according to any one of the preceding claims 1-9.

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