Section valve and gas cooker comprising same

Abstract

The utility model provides a segment position valve and a gas cooker comprising the same, the segment position valve comprises a cavity and a closure arranged in the cavity, the segment position valve comprises a valve rod, the valve rod is provided with a shielding part corresponding to a flow hole of the closure, and the shielding part and the edge of the flow hole form a closure area; the rotary knob and the valve rod are coaxially arranged, a connecting piece is arranged on the rotary knob or the valve rod, a guide part is arranged on the side portion of the section position valve and corresponds to the connecting piece, and when the connecting piece abuts against the guide part and is located in a guide groove of the guide part, the section position valve is located in the guide groove of the guide part. The valve rod and the shielding part move in the axis direction of the shutter, and the closure area disappears. The blocking part is used for limiting flow, the guide part extrudes the connecting piece to drive the valve rod and the blocking part to move, the closure area disappears, then the one-key stir-frying function of the section valve is achieved, the section valve does not need to be additionally provided with an air channel and an electromagnetic valve, and the manufacturing cost of the section valve is lower.

Description

Technical Field

[0001] This utility model specifically relates to a stage valve and a gas stove containing the same. Background Technology

[0002] Due to its strong flame control capabilities and diverse flame layout types, the slit valve has gradually become an important branch of burners.

[0003] Stage valves typically include a one-touch stir-fry function to meet various cooking needs. Current technology usually implements this function by adding a gas path, which is opened or closed by a solenoid valve. When the solenoid valve is open, the total gas flow increases, thus enabling the one-touch stir-fry function. However, using a solenoid valve and adding a gas path significantly modifies existing stage valves, making the structure more complex and increasing the cost of the solenoid valve and electrical components, thereby raising the manufacturing cost of the stage valve. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing stage valve in realizing the one-button stir-fry function, which is complex in structure and high in cost, and to provide a stage valve and a gas stove containing it.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A slit valve, the slit valve comprising a cavity and a stop valve disposed within the cavity, the slit valve further comprising:

[0007] The valve stem has a blocking part on it corresponding to the flow orifice of the valve, and the blocking part and the edge of the flow orifice form a flow interception area;

[0008] A knob is provided, which is coaxially arranged with the valve stem. A connector is provided on the knob or the valve stem. A guide portion is provided on the side of the segment valve corresponding to the connector. When the connector abuts against the guide portion and is located in the guide groove of the guide portion, the valve stem and the blocking portion move along the axial direction of the closure and the interception area disappears.

[0009] In this solution, a flow-blocking area is formed by setting a shielding part and the edge of the flow orifice to block part of the flow orifice. This makes the flow rate of gas flowing out of the flow orifice less than the flow rate without the shielding part and the flow-blocking area. That is, the flow is limited by the shielding part. At the same time, a connector is set on the knob or valve stem. The connector cooperates with the guide part set on the side of the segment valve. When the connector is in the guide groove, the valve stem and the shielding part are moved by squeezing the connector, and the flow-blocking area disappears. This realizes the one-button stir-fry function of the segment valve. This segment valve does not require additional gas circuit and solenoid valve, so the manufacturing cost of the segment valve is lower. The modification of the segment valve is small and it is easy to modify the existing model, saving modification costs.

[0010] Preferably, the connector is disposed on the knob and located on the side wall of the knob facing the valve stem. A retaining ring is disposed on the side of the segment valve corresponding to the side wall of the knob. The retaining ring is sleeved on the valve stem. The first end of the retaining ring extends along the axial direction of the knob. The guide portion is disposed on the retaining ring and located near the first end of the retaining ring.

[0011] In this design, the aforementioned configuration allows for the installation of a guide section on the side of the valve. This guide section, in conjunction with the connecting piece, drives the valve stem to move. Additionally, the retaining ring limits the travel of the knob and valve stem, preventing excessive downward pressure from the user that could cause the valve stem to fail to reset.

[0012] Preferably, the guide portion is a protrusion from the outer surface of the retaining ring, the guide groove is disposed on the side of the guide portion facing the closure element, the opening of the guide groove faces the closure element, and the bottom of the guide groove faces the knob.

[0013] In this solution, the above settings enable the knob and valve stem to move toward the stopcock when the connector is located in the guide groove, thereby eliminating the flow throttling area.

[0014] Preferably, the guide groove is an arc-shaped groove.

[0015] In this solution, the above-mentioned settings improve the moving efficiency when the connector enters the guide groove and moves from the guide groove to outside the guide groove and away from the guide part, thus avoiding interference with the bottom of the guide groove and the inability to move.

[0016] Preferably, the protrusion has guide surfaces on opposite sides, and the guide surfaces are inclined toward the opening of the guide groove from the thickness direction of the protrusion.

[0017] In this solution, the above settings enable the connector to be guided by the guide surface when it moves into the guide groove, reducing the resistance when the connector moves and thus improving the user's operating feel.

[0018] Preferably, the flow orifice includes an inner ring flow orifice and an outer ring flow orifice, the blocking portion corresponds to the inner ring flow orifice, and the blocking portion and the edge of the inner ring flow orifice form a flow interception area.

[0019] In this solution, the inner ring flow orifice is generally smaller in size, while the outer ring flow orifice is generally larger in size. By setting the shielding part to correspond to the inner ring flow orifice, the size of the inner ring flow orifice can be increased without modifying the outer ring flow orifice, thus eliminating the need for additional air passages. This also does not affect the preset heat range of the outer ring flow orifice itself, preventing the outer ring burner connected to the stage valve from having a significantly greater heat than the inner ring burner, which could lead to uneven heating when heating the cookware.

[0020] Preferably, the shielding portion includes a shielding plate extending along the axis of the valve stem, the size of the shielding plate being smaller than the size of the inner ring flow orifice, and the shielding plate being fixedly connected to the valve stem.

[0021] In this solution, the above settings prevent the inner ring flow orifice from being blocked when the baffle plate corresponds to the inner ring flow orifice.

[0022] Preferably, the baffle plate is arranged around the outer periphery of the valve stem and fits against the inner wall of the closure. The baffle portion also includes a mounting member, which is disposed between the valve stem and the baffle plate.

[0023] In this solution, the baffle plate is positioned close to the inner ring flow orifice using an installation component, ensuring a seal between the baffle plate and the edge of the inner ring flow orifice, thereby improving the flow interception effect.

[0024] Preferably, the guide groove is located at a 120° angle to the zero position of the closure element.

[0025] In this solution, the above settings enable the one-button stir-fry function of the segment valve to be realized at a position 120° away from the zero position of the closed valve.

[0026] A gas stove comprising a stage valve as described above.

[0027] In this solution, the gas stove includes the aforementioned stage valve, which enables the one-touch stir-fry function to be activated through the connection and guide groove. The structure is simple and the cost is low.

[0028] The positive and progressive effects of this utility model are as follows: This utility model forms a flow interception area by setting a shielding part and the edge of the flow orifice to block part of the flow orifice. This makes the flow rate of gas flowing out of the flow orifice less than the flow rate without the shielding part and the flow interception area formed by the edge of the flow orifice. That is, the flow is limited by the shielding part. At the same time, a connecting part is set on the knob or valve stem. The connecting part cooperates with the guide part set on the side of the segment valve. When the connecting part is in the guide groove, the valve stem and the shielding part are moved by squeezing the connecting part, and the flow interception area disappears. This realizes the one-button stir-fry function of the segment valve. This segment valve does not require additional gas circuit and solenoid valve, which makes the manufacturing cost of the segment valve lower. The modification of the segment valve is small and it is easy to modify the existing model, saving modification costs. Attached Figure Description

[0029] Figure 1 This is a perspective view of a segment valve according to an embodiment of the present invention.

[0030] Figure 2 This is a diagram showing the positional relationship between the retaining ring and the segment valve in one embodiment of the present invention.

[0031] Figure 3 This is a diagram showing the positional relationship between the connector and the knob in one embodiment of the present invention.

[0032] Figure 4 This is a diagram showing the positional relationship between the guide portion and the retaining ring in one embodiment of the present invention.

[0033] Figure 5 This is a diagram showing the positional relationship between the valve stem and the valve arm according to an embodiment of the present invention.

[0034] Figure 6 This is a diagram showing the positional relationship between the connector and the guide surface in an embodiment of this utility model.

[0035] Figure 7 This is a schematic diagram of the structure of the shielding part and the inner ring flow hole forming a flow interception area according to an embodiment of the present invention.

[0036] Figure 8 This is a schematic diagram of the structure in which the interception area disappears according to an embodiment of the present invention.

[0037] Figure 9 This is a diagram showing the positional relationship between the mounting component and the shielding plate in one embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] Cavity 1

[0040] closed child 2

[0041] Inner ring flow orifice 21

[0042] Outer ring flow orifice 22

[0043] Valve stem 3

[0044] Shielding part 31

[0045] Shield 311

[0046] Mounting part 312

[0047] Knob 4

[0048] Connector 41

[0049] Guiding section 5

[0050] Guide groove 51

[0051] Guide surface 52

[0052] 6-ring

[0053] Limit plate 61 Detailed Implementation

[0054] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0055] This embodiment provides a slit valve, the specific structure of which is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the slit valve includes a cavity 1 and a stop valve 2 disposed within the cavity. The slit valve also includes:

[0056] The valve stem 3 has a blocking part 31 on the valve stem 3 corresponding to the flow hole of the valve 2. The blocking part 31 and the edge of the flow hole form a flow interception area.

[0057] Knob 4 is coaxially arranged with valve stem 3. A connector 41 is provided on knob 4 or valve stem 3. A guide part 5 is provided on the side of the segment valve corresponding to the connector 41. When the connector 41 abuts against the guide part 5 and is located in the guide groove 51 of the guide part 5, the valve stem 3 and the blocking part 31 move along the axial direction of the stopper 2 and the interception area disappears.

[0058] Specifically, the valve stem 3 extends into the axis of the valve body 2 and drives the valve body 2 to rotate, so that the flow orifice on the valve body 2 rotates and communicates with the channel on the cavity 1. The valve stem 3 is coaxially arranged with the knob 4, so that the valve stem 3 is driven to rotate by the knob 4, which in turn drives the valve body 2 to rotate. A space is provided inside the valve body 2 corresponding to the valve stem 3, and a blocking part 31 is provided in this space. The blocking part 31 is provided on the outer periphery of the valve stem 3 and is fixedly connected to the valve stem 3, so that it can rotate with the valve stem 3 and move downward along the axis of the valve body 2. The connecting part 41 is arranged in the radial direction of the knob 4 or the valve stem 3. A guide part 5 is provided on the side of the segment valve. The guide part 5 is correspondingly arranged with the connecting part 41. The guide part 5 includes a guide groove 51, which is used to accommodate the connecting part 41.

[0059] In the initial state, the connector 41 is located on the side of the guide portion 5, that is, the connector 41 and the guide portion 5 are spaced apart. At this time, the positions of the knob 4, valve stem 3, and blocking portion 31 along the axis of the valve 2 remain unchanged. The blocking portion 31 and the edge of the flow orifice form a flow interception area to block part of the flow orifice. When the gas flows out of the flow orifice, the flow rate is less than the flow rate without the blocking portion 31, that is, the flow is limited by the blocking portion 31. It can be understood that under the flow restriction condition, the amount of gas entering the channel through the flow orifice meets the preset flow rate of the segment valve, while the intercepted flow rate is enlarged by the flow orifice size and limited by the blocking portion 31. When the blocking portion 31 moves away from the flow orifice, the limited flow rate flows out of the channel, realizing the one-button stir-fry function of the segment valve.

[0060] When knob 4 and valve stem 3 are rotated, connector 41 rotates to abut against guide portion 5 and is located in guide groove 51 of guide portion 5. By pressing connector 41, knob 4, valve stem 3, and blocking portion 31 are driven to move downward along the axis of stopper 2, that is, blocking portion 31 moves away from flow orifice, and the interception area formed by blocking portion 31 and the edge of flow orifice disappears accordingly. This realizes the one-button stir-fry function of segment valve. This segment valve does not require additional air circuit and solenoid valve, making the manufacturing cost of segment valve lower. For existing segment valves, it is only necessary to enlarge the flow orifice size accordingly, add blocking portion, and replace the structure with connector 41 and guide portion 5. The modification is small, and it is easy to modify existing models, saving modification costs.

[0061] In this embodiment, the connector 41 is disposed on the knob 4 and located on the side wall of the knob 4 facing the valve stem 3. A retaining ring 6 is disposed on the side of the segment valve corresponding to the side wall of the knob 4. The retaining ring 6 is sleeved on the valve stem 3. The first end of the retaining ring 6 extends along the axial direction of the knob 4. The guide part 5 is disposed on the retaining ring 6 and is located near the first end of the retaining ring 6.

[0062] Specifically, the valve stem 3 is a rod, and the knob 4 is a cylindrical component. The cylindrical component is fitted onto the valve stem 3 and has a receiving cavity inside. A connecting member 41 is provided on the side wall of the receiving cavity. The connecting member 41 is arranged radially along the knob 4 and extends toward the valve stem 3. The connecting member 41 is a rod and is cylindrical. Of course, in other embodiments, the connecting member 41 can also be a rectangular rod. A retaining ring 6 is fitted onto the valve stem 3. The retaining ring 6 has a circular structure and its first end extends toward the receiving cavity. A guide portion 5 is provided on the retaining ring 6 and is located near the first end of the retaining ring 6. The guide portion 5 protrudes from the outer surface of the retaining ring 6 so as to drive the valve stem 3 to move when it cooperates with the connecting member 41. The retaining ring 6 also includes a limiting plate 61. The size of the limiting plate 61 is larger than the size of the opening on the cooktop panel. The limiting plate 61 is disposed between the first end and the second end of the retaining ring 6 so that when the retaining ring 6 is installed on the cooktop panel, the limiting plate 61 abuts against the opening on the cooktop panel, thereby keeping the guide part 5 always positioned on the side of the stage valve.

[0063] Compared to the connector 41 being located on the valve stem 3 and the retaining ring 6 being located on the outer periphery of the knob 4, the retaining ring 6 being located inside the receiving cavity occupies less space on the top of the cooktop panel in the horizontal direction, making it easier for users to operate and preventing interference with the user's hands.

[0064] In addition, by setting the size of the limiting plate 61 to be greater than or equal to the size of the knob 4, the retaining ring 6 can also limit the stroke of the knob 4 and the valve stem 3, preventing the user from applying too much downward pressure and causing the valve stem 3 to fail to reset.

[0065] In this embodiment, the guide portion 5 is a protrusion on the outer surface of the retaining ring 6, and the guide groove 51 is provided on the side of the guide portion 5 facing the retainer 2. The opening of the guide groove 51 faces the retainer 2, and the bottom of the guide groove 51 faces the knob 4.

[0066] It is understandable that, along the axis of the valve 2, the knob 4, valve stem 3, and valve 2 are arranged sequentially from top to bottom, with the valve stem 3 partially located inside the valve 2. The retaining ring 6 is located between the knob 4 and the valve 2 and is fitted onto the valve stem 3. The guide portion 5 on the retaining ring 6 cooperates with the connecting piece 41 and, through the guide portion 5, presses the connecting piece 41, thereby driving the valve stem 3 and the knob 4 to move downward along the axis of the valve 2. The guide groove 51 of the guide portion 5 is set with its opening facing the valve 2, so that when the connecting piece 41 enters the guide groove 51 through the opening, the height of the connecting rod 41 along the axis of the valve 2 is correspondingly reduced, that is, the connecting piece 41 moves downward. Correspondingly, the bottom of the guide groove 51 extends towards the knob 4, so that when the bottom of the groove abuts against the connecting piece 41, the height of the connecting rod 41 along the axis of the valve 2 is positioned, maintaining and eliminating the interception area, thereby increasing the gas volume of the segment valve, that is, the one-button stir-fry function.

[0067] Furthermore, the guide groove 51 is an arc-shaped groove. The arc-shaped groove allows the connector 41 to enter the guide groove 51 and move from the guide groove 51 to outside the guide groove 51 and away from the guide part 5. Compared with rectangular grooves or other shaped grooves, the movement efficiency is correspondingly improved, and the situation where the connector 41 cannot move due to interference between the bottom of the guide groove 51 and the groove is avoided.

[0068] In this embodiment, the protrusion has guide surfaces 52 on its opposite sides, and the guide surfaces 52 are inclined toward the opening from the thickness direction of the protrusion. It should be noted that when the connector 41 on the knob 4 rotates with the knob 4 and comes into contact with the guide part 5, it first contacts the side of the protrusion. The guide surfaces 52 are inclined on the opposite sides of the protrusion corresponding to the connector 41, so that the connector 41 can be guided by the guide surfaces 52 when it moves into the guide groove 51, reducing the resistance when the connector 41 moves and improving the user's operating feel.

[0069] In this embodiment, the flow orifice includes an inner ring flow orifice 21 and an outer ring flow orifice 22. The blocking part 31 corresponds to the inner ring flow orifice 21, and the blocking part 31 and the edge of the inner ring flow orifice 21 form a flow interception area.

[0070] Specifically, the inner ring flow orifice 21 and the outer ring flow orifice 22 are respectively set at different heights on the gate 2. The inner ring flow orifice 21 is used to communicate with the inner ring channel, and the outer ring flow orifice 22 is used to communicate with the outer ring channel. The size of the inner ring flow orifice 21 is smaller than that of the outer ring flow orifice 22. This is existing technology and will not be elaborated on here. The shielding part 31 is set to correspond to the inner ring flow orifice 21 and forms a flow interception area with the edge of the inner ring flow orifice 21. This allows the size of the inner ring flow orifice 21 to be enlarged without modifying the outer ring flow orifice 22. This eliminates the need for additional air passages and does not require modification of the outer ring flow orifice 22 so as not to affect the preset fire range of the outer ring flow orifice 22 itself. This enables the one-button stir-fry function of the stage valve when the connector 41 is located in the guide groove 51.

[0071] At the same time, the shielding part 31 is configured to correspond to the inner ring flow hole 21 to prevent the outer ring fire cover connected to the stage valve from having a significantly greater fire power than the inner ring fire cover, which could lead to uneven heating when heating the pot.

[0072] like Figure 9 As shown, in this embodiment, the shielding part 31 includes a shielding plate 311 extending along the axis of the valve stem 2. The size of the shielding plate 311 is smaller than the size of the inner ring flow hole 21. The shielding plate 311 is fixedly connected to the valve stem 3.

[0073] Specifically, the baffle plate 311 is a rectangular plate, while the inner ring flow hole 21 is a round hole. The width of the baffle plate 311 is smaller than the diameter of the inner ring flow hole 21. In the initial state at the baffle plate 311 and the inner ring flow hole 21, that is, when the interception area is formed, the baffle plate 311 is prevented from blocking the inner ring flow hole 21, ensuring that the gas can flow into the inner ring channel and preventing the burner connected to the stage valve from accidentally going out.

[0074] In this embodiment, the baffle plate 311 is arranged around the outer periphery of the valve stem 3 and fits against the inner wall of the valve 2. The baffle portion 31 also includes a mounting member 312, which is disposed between the valve stem 3 and the baffle plate 311.

[0075] Specifically, the baffle plate 311 has a cylindrical structure with a rectangular plate cross-section and is fitted onto the outer periphery of the valve stem 3. Multiple mounting parts 312 are provided between the baffle plate 311 and the valve stem 3, spaced apart, to support the baffle plate 311 in contact with the inner wall of the valve stem 2. It can be understood that the flow-limiting area formed by the baffle plate 311 and the edge of the inner ring flow orifice 21 restricts the flow of gas, while the edge of the baffle plate 311 and the inner ring flow orifice 21 needs to remain sealed to ensure the flow-limiting effect. Therefore, by using the mounting parts 312 to position the baffle plate 311 close to the inner ring flow orifice 21, a seal is maintained between the baffle plate 311 and the edge of the inner ring flow orifice 21, improving the flow-limiting effect.

[0076] In this embodiment, the guide groove 51 is located at a 120° angle to the zero position of the valve 2. It is understood that when the valve is in one-button high-heat mode, the gas supplied to the inner and outer ring channels is at its maximum. In this embodiment, the 120° angle to the zero position of the valve 2 is set as the location of the maximum gas flow. When the user operates the valve, turning the knob 4 to 120° causes the connector 41 to rotate into the guide groove 51 and be compressed by it. This causes the connector 41, knob 4, valve stem 3, and blocking part 31 to all move downwards along the axis of the valve 2. After the blocking part 31 moves, the interception area formed between it and the inner ring flow hole 21 disappears, thus realizing the one-button high-heat function of the valve at a 120° angle from the zero position of the valve 2.

[0077] Of course, in other embodiments, the guide groove 51 may also be located at a 130° angle to the zero position of the shut-off valve 2, or at a 90° angle to the zero position of the shut-off valve 2. The purpose is to further realize the one-button stir-fry function of the segment valve by rotating the knob 4, thereby increasing the fire range of the segment valve, while ensuring the original fire range of the segment valve.

[0078] This embodiment also provides a gas stove, which includes the aforementioned stage valve. A connector 41 is provided on the knob 4 of the stage valve, and a retaining ring 6 is fitted on the valve stem 3. A guide portion 5 is provided on the retaining ring 6 corresponding to the connector 41. The guide portion 5 has a guide groove 51 so that when the knob 4 is rotated, the connector 41 cooperates with the guide groove 51, causing the valve stem 3 and the blocking portion 31 on the valve stem 3 to move downward along the axis of the valve stem 2, eliminating the flow interception area and realizing the one-button stir-fry function of the gas stove. The structure is simple and the cost is low.

[0079] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A segment valve comprising a cavity and a closure disposed within the cavity, wherein, The segment valve further comprises: a valve stem, wherein a shielding part corresponding to the flow hole of the obturator is arranged on the valve stem, and the shielding part and the edge of the flow hole form a flow blocking area; a knob coaxially arranged with the valve stem, wherein a connecting part is arranged on the knob or the valve stem, and a guide part corresponding to the connecting part is arranged on the side of the segment valve, when the connecting part abuts against the guide part and is located in the guide groove of the guide part, the valve stem and the shielding part move along the axis direction of the obturator, and the flow blocking area disappears.

2. The segment valve of claim 1, wherein The connecting part is arranged on the knob and located on the side wall of the knob facing the valve stem, a retaining ring corresponding to the side wall of the knob is arranged on the side of the segment valve, the retaining ring is sleeved on the valve stem, the first end of the retaining ring extends along the axis direction of the knob, and the guide part is arranged on the retaining ring and close to the first end of the retaining ring.

3. The segment valve of claim 2, wherein, The guide part is a protrusion from the outer surface of the retaining ring, the guide groove is arranged on the side of the guide part facing the obturator, the opening of the guide groove faces the obturator, and the groove bottom of the guide groove faces the knob.

4. The segment valve of claim 3, wherein The guide groove is an arc-shaped groove.

5. The segment valve of claim 3, wherein The opposite sides of the protrusion have guide surfaces, and the guide surfaces are arranged inclinedly from the thickness direction of the protrusion to the opening of the guide groove.

6. The segment valve of claim 1, wherein, The flow hole comprises an inner ring flow hole and an outer ring flow hole, the shielding part corresponds to the inner ring flow hole, and the shielding part and the edge of the inner ring flow hole form a flow blocking area.

7. The segment valve of claim 6, wherein, The shielding part comprises a shielding plate extending along the axis direction of the obturator, the size of the shielding plate is smaller than the size of the inner ring flow hole, and the shielding plate is fixedly connected with the valve stem.

8. The segment valve of claim 7, wherein, The shielding plate is annularly arranged on the outer circumferential side of the valve stem and abuts against the inner wall of the obturator, and the shielding part further comprises a mounting part arranged between the valve stem and the shielding plate.

9. The segment valve of claim 1, wherein, The guide groove is located at a position with an included angle of 120° with the zero position of the obturator.

10. A gas hob, characterized in that The gas stove comprises the segment valve according to any one of claims 1-9.

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