Plug valve and gas equipment

Abstract

The plug valve comprises an electromagnetic valve and a driving lever, the driving lever comprises a first push arm and a second push arm, the driving lever is suitable for rotating when the first push arm is pushed, and the second push arm is suitable for pushing the electromagnetic valve when the driving lever rotates and enabling a reset spring of the electromagnetic valve to deform. The elastic coefficient of the reset spring is smaller than that of the second push arm. The elastic coefficient of the second push arm is designed to be larger than the elastic coefficient of the reset spring of the electromagnetic valve, so that when the first push arm is pushed, the second push arm can effectively drive the electromagnetic valve to achieve suction, and when the first push arm bears too large force, the second push arm can effectively achieve deformation, the force is prevented from being transmitted to the electromagnetic valve, and the electromagnetic valve is prevented from being damaged. The electromagnetic valve is prevented from being damaged.

Description

Technical Field

[0001] The present application relates to the technical field of gas flow control, and in particular to a plug valve and a gas device. Background Art

[0002] Gas appliances such as gas stoves and gas water heaters require the use of plug valves to control the gas flow rate, thereby controlling the size of the fire. The general structure of the plug valve is as follows: the plug valve includes a valve stem, a valve core, a lever and a solenoid valve. The valve stem is unlocked when it is pressed down, so that the valve core can be driven to rotate, thereby controlling the change in gas flow rate. When the valve stem is pressed down, the lever is driven to rotate, so that the lever acts on the solenoid valve, and the reset spring of the solenoid valve is deformed, and the solenoid valve is in an engaged state. After a stable flame is formed, even if the valve stem is released, the solenoid valve is still in an engaged state, thus avoiding interruption of gas delivery. In the related art, when the pressure on the lever is too large, the force will be transmitted to the solenoid valve through the lever, or when the lever is subjected to a large impact (such as the valve stem is quickly pressed down), a large impact will be generated on the solenoid valve, which can easily cause damage to the solenoid valve. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a plug valve.

[0004] To achieve the above object, the present application discloses a plug valve, which includes:

[0005] Solenoid valves; and

[0006] A shift lever, the shift lever comprising a first push arm and a second push arm, the shift lever being adapted to rotate when the first push arm is pushed, the second push arm being adapted to push the solenoid valve when the shift lever rotates and deform a return spring of the solenoid valve, the elastic coefficient of the return spring being smaller than the elastic coefficient of the second push arm.

[0007] In some embodiments of the present application, the second push arm has an abutment surface, and the second push arm is suitable for pushing the solenoid valve through the abutment surface, and the abutment surface is arc-shaped.

[0008] In some embodiments of the present application, the second push arm has an abutment portion, the abutment portion is bent away from the solenoid valve, and the abutment portion forms the abutment surface on a side facing the solenoid valve.

[0009] In some embodiments of the present application, the second push arm has a rod portion, the abutment portion is provided at one end of the rod portion, and the abutment portion is protruded relative to the rod portion toward the solenoid valve.

[0010] In some embodiments of the present application, the second push arm has reinforcing ribs on a side facing away from the solenoid valve and / or a side facing the solenoid valve.

[0011] In some embodiments of the present application, the lever is an integrally formed structure.

[0012] In some embodiments of the present application, the lever is made of polyoxymethylene.

[0013] In some embodiments of the present application, the stopcock includes:

[0014] a valve stem, adapted to rotate in a circumferential direction and move in an axial direction, wherein the valve stem is adapted to push the first push arm when moving in the axial direction; and

[0015] The damping module is adapted to provide damping for the rotation of the valve stem to form a plurality of gears.

[0016] In some embodiments of the present application, the valve stem is inserted into the damping module, and the valve stem has a limiting portion, and the limiting portion is suitable for abutting against the damping module when the valve stem moves axially.

[0017] In some embodiments of the present application, the limiting portion is further suitable for being stopped by the damping module when the valve stem rotates in the circumferential direction.

[0018] In some embodiments of the present application, the damping module has a stop portion, which is surrounded by a slide groove, and the limiting portion is suitable for abutting against the bottom of the slide groove when the valve stem moves axially, and the limiting portion is suitable for moving along the extension direction of the slide groove to be stopped by the stop portion when the valve stem rotates circumferentially.

[0019] The present application also discloses a gas device, which includes the above-mentioned stopcock.

[0020] The technical solution of the present application designs the elastic coefficient of the second push arm to be larger than the elastic coefficient of the return spring of the solenoid valve, so that when the first push arm is pushed, the second push arm can effectively drive the solenoid valve to be attracted, and when the first push arm is subjected to excessive force, the second push arm can effectively deform to prevent the force from being transmitted to the solenoid valve, thereby avoiding damage to the solenoid valve.

[0021] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of a plug valve in some embodiments;

[0024] Figure 2 Schematic diagram of a plug valve in some embodiments;

[0025] Figure 3 for Figure 1 Middle AA section view;

[0026] Figure 4 for Figure 2 Middle BB section view;

[0027] Figure 5 An exploded view of a plug valve in some embodiments;

[0028] Figure 6 Schematic diagram of the coordination of the valve stem, the lever and the solenoid valve in some embodiments;

[0029] Figure 7 Schematic diagram of the coordination of the valve stem, the damping module and the valve cover in some embodiments;

[0030] Figure 8 An exploded view of the valve stem and the damping module in some embodiments;

[0031] Fig. 9 Schematic diagram of a lever in some embodiments;

[0032] Fig.10 Schematic diagram of valve core in some embodiments;

[0033] Fig.11 A schematic diagram of a damping module in some embodiments;

[0034] Fig.12 Schematic diagram of valve seat in some embodiments.

[0035] Description of Figure Numbers:

[0036] Plug valve 100, valve body 1000, valve seat 1100, valve cover 1200, notch 1210, accommodating chamber 1300, inner ring air supply hole 1310, outer ring air supply hole 1320, valve core 2000, air inlet channel 2100, inner ring ventilation channel 2200, outer ring ventilation channel 2300, valve stem 3000, limit portion 3100, valve needle 3200, lever 4000, first push arm 4100, second push arm 4200, rod portion 4210, abutment Part 4220, abutment surface 4221, cavity 4222, reinforcement rib 4230, rotating shaft 4300, solenoid valve 5000, return spring 5100, damping module 6000, housing 6100, through hole 6110, positioning protrusion 6120, stopper part 6130, slide groove 6140, groove bottom 6141, rotating part 6200, shaft hole 6210, positioning groove 6300, elastic top support assembly 6400, elastic part 6410, top support part 6420.

[0037] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] The first aspect of the present application proposes a plug valve 100, and the plug valve 100 will be described in detail in conjunction with the gas equipment below. It is understandable that gas equipment includes various types, including but not limited to gas stoves, gas water heaters and other appliances that require gas, and the gas equipment includes a burner. The plug valve 100 is used to control the gas flow supplied to the burner, so as to achieve different firepower of the burner to meet different combustion requirements. For example, when the gas equipment is a gas stove, the firepower of the burner can be controlled by the plug valve 100 to meet the cooking requirements of different ingredients. For another example, when the gas equipment is a gas water heater, the firepower of the burner can be controlled by the plug valve 100 to adjust the water outlet temperature of the gas water heater.

[0043] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the present application, the stopcock valve 100 includes a lever 4000 and a solenoid valve 5000, and the lever 4000 includes a first push arm 4100 and a second push arm 4200. When the first push arm 4100 is pushed, the lever 4000 rotates. When the lever 4000 rotates, it drives the second push arm 4200 to push the solenoid valve 5000. When the second push arm 4200 pushes the solenoid valve 5000, the second push arm 4200 causes the return spring 5100 of the solenoid valve 5000 to deform, and the elastic coefficient of the second push arm 4200 needs to be designed to be larger than the elastic coefficient of the return spring 5100. In this embodiment, the elastic coefficient of the second push arm 4200 is designed to be larger than the elastic coefficient of the return spring 5100 of the solenoid valve 5000. In this way, when the first push arm 4100 is pushed, the second push arm 4200 can effectively drive the solenoid valve 5000 to be attracted, and when the first push arm 4100 is subjected to excessive force, the second push arm 4200 can effectively deform to prevent the force from being transmitted to the solenoid valve 5000, thereby avoiding damage to the solenoid valve 5000.

[0044] Specifically, the plug valve 100 includes a valve body 1000, a valve core 2000, a valve stem 3000 and a solenoid valve 5000. The valve body 1000 is the main structural component of the plug valve 100. Other components of the plug valve 100 can be installed on the valve body 1000, so that the plug valve 100 can meet different functions. The valve body 1000 can be made of copper or other materials through casting and other processes. In order to meet the installation requirements of different components, the valve body 1000 is generally an irregular component. Figure 1 , Figure 2 and Fig.12 As shown, the valve body 1000 mainly includes a valve seat 1100 and a valve cover 1200, and the valve seat 1100 and the valve cover 1200 are connected to each other to form an accommodating cavity 1300, and an inner ring air supply hole 1310 and an outer ring air supply hole 1320 are formed on the cavity wall of the accommodating cavity 1300, wherein the inner ring air supply hole 1310 is connected to the inner ring nozzle of the burner (not shown in the figure), and the outer ring air supply hole 1320 is connected to the outer ring nozzle of the burner (not shown in the figure).

[0045] Combination Figure 3 and Fig.10 As shown, the valve core 2000 is installed in the accommodating chamber 1300, and the valve core 2000 is rotatable in the accommodating chamber 1300, an air inlet passage 2100 is formed inside the valve core 2000, and the valve core 2000 has an inner ring ventilation passage 2200 and an outer ring ventilation passage 2300, the inner ring ventilation passage 2200 is connected to the air inlet passage 2100, the outer ring ventilation passage 2300 is connected to the air inlet passage 2100, and the inner ring ventilation passage 2200 is connected to the outer ring ventilation passage 2300. 0 cooperates with the inner ring air supply hole 1310, and the outer ring air passage 2300 cooperates with the outer ring air supply hole 1320. When the valve core 2000 rotates in the accommodating chamber 1300, the connecting area between the inner ring air passage 2200 and the inner ring air supply hole 1310 changes, and the connecting area between the outer ring air passage 2300 and the outer ring air supply hole 1320 changes, thereby changing the amount of gas flowing to the inner ring nozzle and the outer ring nozzle to achieve the adjustment of the firepower. That is, the gas provided by the outside needs to be transported to the interior of the valve core 2000 through a pipeline and enter the air intake channel 2100. The gas entering the air intake channel 2100 needs to flow out from the inner ring ventilation channel 2200 and enter the inner ring air supply hole 1310 and then flow to the inner ring nozzle, and needs to flow out from the outer ring ventilation channel 2300 and enter the outer ring air supply hole 1320 and then flow to the outer ring nozzle. By rotating the valve core 2000, the relative position of the inner ring ventilation channel 2200 and the inner ring air supply hole 1310 gradually changes, thereby changing the connecting area between the two. The relative position of the outer ring ventilation channel 2300 and the outer ring air supply hole 1320 also gradually changes, thereby changing the connecting area between the two. When the connecting area changes, the flow rate of the gas can be changed, thereby achieving the adjustment of the firepower.

[0046] The rotation of the valve core 2000 is realized by the valve stem 3000. The valve stem 3000 is penetrated through the valve body 1000 and exposed from the valve body 1000. The valve stem 3000 is configured to be movable in the axial direction and rotatable in the circumferential direction relative to the valve body 1000. The end of the valve stem 3000 is generally installed with a knob, and the user acts on the knob to transmit force to the valve stem 3000. Specifically, the user applies a force along the axial direction of the valve stem 3000 to the valve stem 3000, and the valve stem 3000 gradually presses toward the valve body 1000 (that is, the valve stem 3000 moves in the axial direction and the valve stem 3000 is pressed down), so that the child lock function is released (the structure of the child lock is not limited in this embodiment, and can refer to the relevant technology). After the child lock function is released, the valve stem 3000 can rotate in its circumferential direction, thereby driving the valve core 2000 to rotate in the accommodating chamber 1300, so as to achieve the adjustment of the firepower.

[0047] When the valve stem 3000 is pressed against the valve body 1000, the valve stem 3000 can trigger the lever 4000 to rotate. It is understood that there are many situations in which the valve stem 3000 triggers the lever 4000 to rotate. The valve stem 3000 can directly apply force to the lever 4000 to trigger the lever 4000, or the valve stem 3000 can indirectly apply force to the lever 4000 to trigger the lever 4000. For example, in combination with Figure 6 As shown, the valve stem 3000 triggers the lever 4000 by indirectly applying force to the lever 4000. The valve stem 3000 is connected to a valve needle 3200. The valve needle 3200 is inserted into the valve core 2000 and corresponds to the lever 4000. When the valve stem 3000 is pressed against the valve body 1000, the valve stem 3000 drives the valve needle 3200 to push the lever 4000, thereby triggering the lever 4000 to rotate the lever 4000, and the lever 4000 then pushes the solenoid valve 5000. The solenoid valve 5000 starts the supply of gas, so that the gas can enter the air intake channel 2100 of the valve core 2000, and then be transported to the inner ring nozzle and the outer ring nozzle through the inner ring ventilation channel 2200 and the outer ring ventilation channel 2300 respectively.

[0048] When the lever 4000 pushes the solenoid valve 5000 to start the gas supply, the solenoid valve 5000 itself is in the attracted state. The structure of the solenoid valve 5000 can refer to the relevant technology. It can be understood that a sensing needle will be arranged near the burner. Through the arrangement of the sensing needle, even if the lever 4000 does not generate force on the solenoid valve 5000 (the valve stem 3000 is reset, that is, after the ignition is completed, the user cancels the downward pressure on the valve stem 3000, and the valve stem 3000 can be reset), the solenoid valve 5000 is still in the attracted state to maintain the gas supply. The principle of the sensing needle is that a thermoelectric potential is generated after the sensing needle is heated by the flame. This thermoelectric potential generates a current in the circuit connected to the solenoid valve 5000. The generated current excites the corresponding components of the solenoid valve 5000 to generate magnetism, so that the solenoid valve 5000 is in the attracted state. When the solenoid valve 5000 is in the attracted state, the gas supply is turned on.

[0049] The specific process is that when the valve stem 3000 is pressed against the valve body 1000, the valve stem 3000 triggers the lever 4000 through the valve needle 3200, and the lever 4000 pushes the solenoid valve 5000, so that the solenoid valve 5000 is in the suction state. At this time, the solenoid valve 5000 opens the gas supply, and the gas enters the air intake channel 2100 through the solenoid valve 5000, and then flows out of the inner ring ventilation channel 2200 and the outer ring ventilation channel 2300, and passes through the inner ring air supply hole 1310 and the outer ring air supply hole 1310. Hole 1320 leads to the inner ring nozzle and the outer ring nozzle. The gas ejected from the inner ring nozzle and the outer ring nozzle is ignited to form a flame. The flame heats the sensing needle. The thermoelectric potential generated by the sensing needle prompts the solenoid valve 5000 to maintain the attracted state. Even if the valve stem 3000 is loosened, the solenoid valve 5000 will not shut off the gas supply. After the flame is turned off, the thermoelectric potential of the sensing needle disappears, and the solenoid valve 5000 blocks / interrupts the gas supply under the elastic force of the return spring 5100 to ensure safety.

[0050] When the downward pressure / degree of the axial movement of the lever 4000 is too large, the force will be transmitted to the solenoid valve 5000 through the lever 4000, or when the lever 4000 is subjected to a large impact (such as the valve stem 3000 is pressed down quickly), it will produce a large impact on the solenoid valve 5000, which can easily cause damage to the solenoid valve 5000. In order to solve this problem, the structure of the lever 4000 and the solenoid valve 5000 is optimized in this embodiment.

[0051] Combination Figure 6 and Fig. 9As shown, the lever 4000 has a rotating shaft 4300, a first push arm 4100 and a second push arm 4200. The first push arm 4100 is arranged at one end of the rotating shaft 4300, and the second push arm 4200 is arranged at the other end of the rotating shaft 4300. The first push arm 4100 and the second push arm 4200 are arranged in a V shape in space, and the lever 4000 is rotatably arranged through the rotating shaft 4300. For example, the lever 4000 can be rotatably set in the valve body 1000, and the valve body 1000 has a corresponding hole, the rotating shaft 4300 is passed through the hole, the first push arm 4100 is located on one side of the hole, and the second push arm 4200 is located on the other side of the hole. When the valve stem 3000 pushes the first push arm 4100, the lever 4000 is rotated through the rotating shaft 4300, thereby driving the second push arm 4200 to rotate, and pushing the solenoid valve 5000 to move (attract) on the rotation path of the second push arm 4200. In this embodiment, the second push arm 4200 is designed to be an elastic structure, and the elastic coefficient of the second push arm 4200 is designed to be larger than the elastic coefficient of the reset spring 5100 of the solenoid valve 5000, that is, the second push arm 4200 is more difficult to deform relative to the reset spring 5100 of the solenoid valve 5000. In this way, when the lever 4000 rotates, the second push arm 4200 can effectively push the solenoid valve 5000 to cause the reset spring 5100 of the solenoid valve 5000 to deform (such as compress), thereby putting the solenoid valve 5000 in an attracted state. If the first push arm 4100 is subjected to a greater force, since the attracted state of the solenoid valve 5000 has reached its limit (for example, the abutment between the moving and static iron cores of the solenoid valve 5000 has reached its limit), the second push arm 4200 may undergo elastic deformation, thereby reducing the force transmitted to the solenoid valve 5000, avoiding damage to the solenoid valve 5000, and also helping to reduce the impact transmitted to the solenoid valve 5000, thereby effectively extending the service life of the solenoid valve 5000.

[0052] Continue to combine Figure 6 and Fig. 9 As shown, in some embodiments of the present application, the second push arm 4200 has a contact surface 4221, and the contact surface 4221 is designed to be arc-shaped, and the second push arm 4200 pushes the solenoid valve 5000 through the contact surface 4221. By designing the contact surface 4221 to be arc-shaped, the friction resistance between the second push arm 4200 and the solenoid valve 5000 is reduced, so that the second push arm 4200 can more easily push the solenoid valve 5000.

[0053] Specifically, when the first push arm 4100 is pushed, the entire lever 4000 rotates, causing the second push arm 4200 to rotate. The rotation path formed in space by the abutment surface 4221 of the second push arm 4200 is arc-shaped. The movement of the solenoid valve 5000 is generally designed to be a linear reciprocating motion. Therefore, when the second push arm 4200 rotates, the contact portion of the solenoid valve 5000 with the second push arm 4200 and the relative position of the abutment surface 4221 of the second push arm 4200 will change. In this embodiment, the abutment surface 4221 is designed to be arc-shaped. In this way, during the rotation of the second push arm 4200, when the aforementioned relative position changes, the contact resistance between the solenoid valve 5000 and the solenoid valve 5000 can be reduced, so that the solenoid valve 5000 can be more easily moved to the attracted state.

[0054] Continue to combine Figure 6 and Fig. 9 As shown, in some embodiments of the present application, the second push arm 4200 has an abutment portion 4220 , wherein the abutment portion 4220 is bent in a direction away from the solenoid valve 5000 , and the abutment surface 4221 is designed on the side of the abutment portion 4220 facing the solenoid valve 5000 .

[0055] Specifically, as mentioned above, the second push arm 4200 needs to be designed as an elastic arm. The elastic coefficient of the second push arm 4200 should be neither too large nor too small, but should be within an appropriate range. If the elastic coefficient of the second push arm 4200 is too large, then when the lever 4000 is subjected to a greater force, it will not be able to undergo elastic deformation in time. If the elastic coefficient of the second push arm 4200 is too small, then the effect of the second push arm 4200 in pushing the solenoid valve 5000 will be greatly reduced.

[0056] In this embodiment, the abutting portion 4220 is bent so that a cavity 4222 is formed on the side of the abutting portion 4220 facing away from the electromagnetic valve 5000, so that the abutting portion 4220 also has a certain elasticity, which is more conducive to the elastic design of the entire second push arm 4200 and effectively avoids the elastic coefficient of the second push arm 4200 being too large. In particular, the abutting portion 4220 is formed on the side of the abutting portion 4220 facing away from the electromagnetic valve 5000, and when the lever 4000 is subjected to a large impact, the abutting portion 4220 is more conducive to absorbing the impact, further reducing damage to the electromagnetic valve 5000.

[0057] Continue to combine Figure 6 and Fig. 9 As shown, in some embodiments of the present application, the second push arm 4200 also has a rod portion 4210, one end of which is provided with the aforementioned abutment portion 4220, and the abutment portion 4220 is designed relative to the rod portion 4210 to protrude toward the position where the solenoid valve 5000 is located.

[0058] Specifically, abutment 4220 is provided at one end of the rod portion 4210, and the other end of the rod portion 4210 is provided on the rotating shaft 4300. Since the abutment 4220 is bent in the direction away from the solenoid valve 5000, if the abutment 4220 is designed to be convex toward the position where the solenoid valve 5000 is located relative to the rod portion 4210, then a bending structure will also be formed at the transition position between the abutment 4220 and the rod portion 4210. Combined with the bending structure of the abutment 4220 itself, the two bending structures have different bending directions, which effectively improves the toughness and strength of the entire second push arm 4200, is more conducive to the second push arm 4200 to absorb impact, and is not easy to break under a large impact.

[0059] Continue to combine Figure 6 and Fig. 9 As shown, in some embodiments of the present application, the second push arm 4200 also has a reinforcing rib 4230. Since the second push arm 4200 needs to be designed to have a certain elasticity, in order to further prevent the second push arm 4200 from breaking under a large impact, the reinforcing rib 4230 is provided, thereby taking into account both the elasticity and strength of the second push arm 4200.

[0060] When the second push arm 4200 pushes the solenoid valve 5000 and resets the second push arm 4200, the second push arm 4200 deforms toward and away from the solenoid valve 5000. In order to better protect the second push arm 4200, reinforcing ribs 4230 are respectively provided on the side of the second push arm 4200 facing the solenoid valve 5000 and the side of the second push arm 4200 facing away from the solenoid valve 5000, thereby greatly improving the performance of the second push arm 4200. Specifically, the reinforcing ribs 4230 may be provided on the rod portion 4210.

[0061] Continue to combine Figure 6 and Fig. 9As shown, in some embodiments of the present application, the lever 4000 is an integrated structure. The so-called integrated structure means that the lever 4000 is prepared by an integrated manufacturing technology, such as integrated molding, casting, three-dimensional printing, etc., so that there is no connection seam between the various parts of the lever 4000 (rotating shaft 4300, second push arm 4200, first push arm 4100), which is conducive to improving the mechanical properties of the lever 4000. And by designing the lever 4000 as an integrated structure, the lever 4000 constitutes a single component, reducing the number of materials, reducing the assembly process of the plug valve, thereby reducing the production difficulty and labor cost. For example, the lever 4000 is manufactured by integrated injection molding, and the integrated injection molding process is relatively mature, which is conducive to improving production efficiency. There are many materials for the lever 4000, as long as it can ensure that the second push arm 4200 has corresponding elasticity after the lever 4000 is manufactured. For example, the lever 4000 is made of polyoxymethylene (POM), which is a common raw material with good physical, mechanical and chemical properties, especially excellent friction resistance, which can avoid wear caused by repeated pushing between the second push arm 4200 and the solenoid valve 5000.

[0062] Generally speaking, most of the plug valves 100 are designed to be infinitely adjustable. When the user uses the plug valve 100 to adjust the firepower, it is not convenient to know the current firepower. The user needs to bend down to observe the size of the flame to judge, which makes the process of adjusting the firepower more troublesome. Figure 1 , Figure 5 , Figure 6 and Fig.11 As shown, in some embodiments of the present application, the stopcock valve 100 also includes a damping module 6000, which is used to provide damping for the rotation of the valve stem 3000 to form a plurality of gears, each gear corresponding to a specific size of firepower. In this way, after the user uses it for a period of time, the user will be familiar with the firepower size of each gear. After the user rotates the valve stem 3000 to the corresponding gear, the user can know the current firepower size, which is more convenient and quick.

[0063] It is understandable that the damping module 6000 has various structures, for example, Figure 8 and Fig.11As shown, the damping module 6000 includes a shell 6100 and a rotating member 6200. The shell 6100 is provided with a through hole 6110 penetrating in the thickness direction thereof. The shell 6100 is installed and fixed to the valve body 1000 to achieve the installation of the damping module 6000. The rotating member 6200 is accommodated in the shell 6100 and is rotatable relative to the shell 6100. An axial hole 6210 is opened on the rotating member 6200. The axial hole 6210 is correspondingly connected to the through hole 6110. The axial hole 6210 is provided for the valve stem 3000 to pass through, and the rotating member 6200 is linked to the valve stem 3000. Among them, one of the rotating part 6200 and the outer shell 6100 is provided with a plurality of positioning grooves 6300 arranged at intervals on the circumference, and the other of the rotating part 6200 and the outer shell 6100 is provided with an elastic abutment component 6400. In the process of the valve stem 3000 driving the rotating part 6200 to rotate, the elastic abutment component 6400 is inserted into one of the plurality of positioning grooves 6300. Each positioning groove 6300 corresponds to a specific connecting area between the inner ring ventilation channel 2200 and the inner ring air supply hole 1310, and corresponds to a specific connecting area between the outer ring ventilation channel 2300 and the outer ring air supply hole 1320. Therefore, the setting of the plurality of positioning grooves 6300 constitutes a plurality of gears, and the firepower adjustment process is more convenient.

[0064] Preferably, a plurality of positioning grooves 6300 are formed on the rotating member 6200, and the elastic top abutting assembly is installed on the outer shell 6100. Specifically, the elastic top abutting assembly 6400 includes an elastic member 6410 and a top abutting member 6420. One end of the elastic member 6410 abuts the outer shell 6100, and the other end abuts the top abutting member 6420. The elastic member 6410 provides elastic force to drive the top abutting member 6420 to abut against the groove wall of the positioning groove 6300 and generate a prompt sound. In the process of the valve stem 3000 driving the rotating member 6200 to rotate, the top abutting member 6420 sequentially abuts against and disengages from different positioning grooves 6300, thereby emitting a "click-click" prompt sound, making it easier for users to know the process of firepower adjustment.

[0065] It can be understood that the damping module 6000 is used to provide a gear when the valve stem 3000 rotates along its circumferential direction. Therefore, when the valve stem 3000 moves along its axial direction, it is necessary to avoid interference with the damping module 6000, that is, the valve stem 3000 can pass through the rotating member 6200 when it moves along its axial direction, and can be fixed relative to the rotating member 6200 when it moves along its circumferential direction, thereby driving the rotating member 6200 to rotate. For example, the axial hole 6210 of the active member is a non-circular hole, and the valve stem 3000 is movable relative to the rotating member 6200 along the axial direction, and is fixed relative to the rotating member 6200 along the circumferential direction. In this way, the valve stem 3000 can move axially and toward the valve body 1000 (the valve stem 3000 is pressed down).

[0066] Combination Figure 7As shown, in some embodiments of the present application, the valve stem 3000 needs to pass through the damping module 6000, that is, the damping module 6000 is sleeved on the valve stem 3000, and the valve stem 3000 has a limiting portion 3100. When the valve stem 3000 moves axially, the limiting portion 3100 is used to abut against the damping module 6000, thereby limiting the degree of movement of the valve stem 3000 along the axial direction and toward the valve body 1000 (the degree to which the valve stem 3000 is pressed downward), thereby forming a maximum stroke of the valve stem 3000 being pressed downward.

[0067] Specifically, in order to facilitate the installation of the damping module 6000, the damping module 6000 is installed outside the valve body 1000, that is, the damping module 6000 is exposed from the valve body 1000. When the damping module 6000 and the valve stem 3000 are both installed in the valve body 1000, a portion of the valve stem 3000 extends into the valve body 1000, and another portion of the valve stem 3000 is exposed from the valve body 1000 and the damping module 6000.

[0068] Combination Figure 7 and Figure 8 As shown, one of the damping module 6000 and the valve body 1000 is provided with a positioning protrusion 6120, and the other is provided with a notch 1210. The positioning protrusion 6120 is inserted into the notch 1210. By inserting the positioning protrusion 6120 into the notch 1210, the damping module 6000 can be quickly positioned and installed on the valve body 1000, thereby facilitating the subsequent further tightening between the damping module 6000 and the valve body 1000. The insertion of the positioning protrusion 6120 into the notch 1210 can also prevent the damping module 6000 from rotating with the rotation of the valve stem 3000.

[0069] It can be understood that, since the valve stem 3000 needs to move along its axial direction and toward the valve body 1000 to achieve ignition (the valve stem 3000 is pressed down), in this embodiment, by providing a limit portion 3100 on the valve stem 3000, when the valve stem 3000 moves toward the valve body 1000, the limit portion 3100 abuts against the upper surface of the damping module 6000 (with Fig.11 The position shown is for reference only), which means that the valve stem 3000 has moved to the limit and cannot move further, so as to prevent excessive force from being applied to the lever 4000 and the solenoid valve 5000. The position limiting of the valve stem 3000 is achieved by abutting the position limiting portion 3100 against the damping module 6000. The structure is simple and easy to implement. There are many structures of the position limiting portion 3100. The position limiting portion 3100 can be an integral structure with the valve stem 3000, or a separate component connected to the valve stem 3000 by a connecting means. For example, the position limiting portion 3100 is a retaining ring, which is inserted into the valve stem 3000. Of course, there are many structures of the position limiting portion 3100, which are not listed here one by one.

[0070] It is understandable that, since the valve stem 3000 needs to rotate in the circumferential direction to drive the valve core 2000 to rotate, thereby adjusting the firepower, in order to limit the circumferential rotation of the valve stem 3000 and avoid the unlimited circumferential rotation of the valve stem 3000, the valve stem 3000 is combined with the valve core 2000 to adjust the firepower. Figure 7 As shown, in some embodiments of the present application, when the valve stem 3000 rotates in the circumferential direction, the limiter 3100 is also used to be stopped by the damping module 6000, thereby limiting the degree of rotation of the valve stem 3000 in the circumferential direction. In other words, through the cooperation between the damping module 6000 and the limiter 3100, the damping module 6000 can not only realize the functions of multiple gears, but also limit the axial movement and circumferential rotation of the valve stem 3000, making the structure more compact.

[0071] The damping module 6000 cooperates with the limiting portion 3100 by the following scheme: Figure 7 As shown, the damping module 6000 has a stop portion 6130, and the stop portion 6130 is surrounded by a slide groove 6140. For example, the stop portion 6130 is C-shaped, so that the slide groove 6140 is surrounded between the two ends of the stop portion 6130. The stop portion 6130 and the slide groove 6140 cooperate to achieve the encirclement of the valve stem 3000. When the valve stem 3000 moves along its axial direction and moves toward the valve body 1000 (the valve stem 3000 is pressed down), until the limit portion 3100 abuts against the groove bottom 6141 of the slide groove 6140, the valve stem 3000 reaches its movement limit and cannot be pressed down any further, preventing the force from being transmitted to the lever 4000 and then to the solenoid valve 5000 and causing damage to the solenoid valve 5000. On this basis, when the valve stem 3000 rotates circumferentially, the limit portion 3100 moves along the extension direction of the slide groove 6140 until the limit portion 3100 encounters the obstruction of the stop portion 6130, which means that the circumferential rotation of the valve stem 3000 reaches its limit.

[0072] The second aspect of the present application also discloses a gas device, Figure 1 and Figure 2As shown, the gas equipment includes the stopcock 100 of the above-mentioned embodiment, the stopcock 100 includes a lever 4000 and a solenoid valve 5000, the lever 4000 includes a first push arm 4100 and a second push arm 4200, when the first push arm 4100 is pushed, the lever 4000 rotates, when the lever 4000 rotates, it drives the second push arm 4200 to push the solenoid valve 5000, when the second push arm 4200 pushes the solenoid valve 5000, the second push arm 4200 causes the reset spring 5100 of the solenoid valve 5000 to deform, and the elastic coefficient of the second push arm 4200 needs to be designed to be larger than the elastic coefficient of the reset spring 5100. In this embodiment, the elastic coefficient of the second push arm 4200 is designed to be larger than the elastic coefficient of the return spring 5100 of the electromagnetic valve 5000, so that when the first push arm 4100 is pushed, the second push arm 4200 can effectively drive the electromagnetic valve 5000 to achieve suction, and when the first push arm 4100 is subjected to excessive force, the second push arm 4200 can effectively achieve deformation, prevent the force from being transmitted to the electromagnetic valve 5000, and avoid damage to the electromagnetic valve 5000. It can be understood that gas equipment includes various types, including but not limited to gas stoves, gas water heaters and other appliances that require gas, and the gas equipment includes a burner. The plug valve 100 is used to control the gas flow rate supplied to the burner, so as to achieve different firepower of the burner and meet different combustion requirements. For example, when the gas equipment is a gas stove, the firepower of the burner can be controlled by the plug valve 100 to meet the cooking requirements of different ingredients. For another example, when the gas equipment is a gas water heater, the firepower of the burner can be controlled by the plug valve 100 to adjust the water outlet temperature of the gas water heater.

[0073] Since the plug valve 100 of the gas equipment adopts the structure of the above embodiment, the gas equipment at least has the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0074] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A plug valve, characterized in that: include: Solenoid valve; as well as A shift lever, the shift lever comprising a first push arm and a second push arm, the shift lever being adapted to rotate when the first push arm is pushed, the second push arm being adapted to push the solenoid valve when the shift lever rotates and deform a return spring of the solenoid valve, the elastic coefficient of the return spring being smaller than the elastic coefficient of the second push arm.

2. The plug valve according to claim 1, characterized in that The second push arm has a contact surface, and the second push arm is suitable for pushing the solenoid valve through the contact surface, and the contact surface is arc-shaped.

3. The plug valve according to claim 2, characterized in that The second push arm has a contact portion, the contact portion is bent away from the solenoid valve, and the contact portion forms the contact surface on a side facing the solenoid valve.

4. The plug valve according to claim 3, characterized in that The second push arm has a rod portion, the abutment portion is arranged at one end of the rod portion, and the abutment portion is protruded relative to the rod portion toward the solenoid valve.

5. The plug valve according to claim 1, characterized in that The second push arm has a reinforcing rib on a side facing away from the solenoid valve and / or a side facing the solenoid valve.

6. The plug valve according to claim 1, characterized in that The lever is an integrally formed structure.

7. The plug valve according to claim 6, characterized in that The material of the lever is polyoxymethylene.

8. The plug valve according to claim 1, characterized in that The plug valve comprises: a valve stem, adapted to rotate in a circumferential direction and move in an axial direction, wherein the valve stem is adapted to push the first push arm when moving in the axial direction; and The damping module is adapted to provide damping for the rotation of the valve stem to form a plurality of gears.

9. The plug valve according to claim 8, characterized in that The valve stem is inserted into the damping module, and the valve stem has a limiting portion, and the limiting portion is suitable for abutting against the damping module when the valve stem moves in the axial direction.

10. The plug valve according to claim 9, characterized in that The limiting portion is also suitable for being stopped by the damping module when the valve stem rotates in the circumferential direction.

11. The plug valve according to claim 10, characterized in that The damping module has a stop portion, which is surrounded by a slide groove. The limiting portion is suitable for abutting against the bottom of the slide groove when the valve stem moves axially, and the limiting portion is suitable for moving along the extension direction of the slide groove to be stopped by the stop portion when the valve stem rotates circumferentially.

12. A gas equipment, characterized in that: A plug valve comprising the plug valve according to any one of claims 1 to 11.

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