Valve core device and cassette stove valve

Abstract

The utility model relates to a kind of valve core device and cassette stove valve, including valve core, the valve core is opened air passage and Y-shaped channel, the air passage and Y-shaped channel are communicated;The front end of the valve core is opened and is communicated with air passage into gas hole;The first port of Y-shaped channel and the second port of Y-shaped channel are communicated and form first gas outlet, the third port of Y-shaped channel forms second gas outlet.By being provided with Y-shaped channel in valve core inside with air passage communication, gas is divided in valve core, realizes multiple-way output via different port, gas can be completed in valve core inside Diversion and orientation, without additional external distribution structure, significantly simplify gas circuit system, reduce connection point and leakage risk;By the geometric branch design of Y-shaped channel, the simultaneous or fractional output of two-way gas flow can be realized, gas flows smoothly, small resistance, pressure distribution is uniform, improve gas supply efficiency and combustion stability.

Description

Technical Field

[0001] This utility model relates to a valve core device and a cassette oven valve. Background Technology

[0002] Existing valve core structures mostly employ a single, straight-through gas channel design, where gas enters through the inlet and flows out axially, enabling only single-path gas supply control. While this structure is simple, it has significant limitations in gas appliances requiring multi-point gas supply or tiered control (such as multi-ring portable gas stoves and dual-burner cooktops). First, the gas can only be output through a single channel, and cannot be supplied simultaneously or in a distributed manner, resulting in uneven fire distribution, concentrated flames, and low thermal efficiency. Secondly, if multi-channel gas supply is achieved through external diversion, it will not only increase the number of components and assembly complexity, but also easily cause unstable gas pressure, an increase in sealing points, and the risk of gas leakage.

[0003] Especially in cassette stove systems with limited space, existing single-channel valve cores are difficult to balance the needs of multiple gas supply and compact layout. Utility Model Content

[0004] The primary objective of this invention is to provide a valve core device for achieving multi-channel flow diversion.

[0005] The second objective of this invention is to provide a cassette oven valve that enables multi-channel flow diversion.

[0006] The primary objective of this invention is achieved as follows: A valve core device includes a valve core having an air passage and a Y-shaped channel, the air passage and the Y-shaped channel being connected. The valve core has an air inlet at its front end that connects to the air passage. The first port and the second port of the Y-shaped channel are connected to form a first air outlet, and the third port of the Y-shaped channel forms a second air outlet.

[0007] By incorporating a Y-shaped channel connected to the gas passage within the valve core, the gas is split within the valve core and output through different ports. The gas can be split and guided within the valve core itself, eliminating the need for additional external distribution structures, significantly simplifying the gas circuit system and reducing connection points and leakage risks. The geometric branching design of the Y-shaped channel allows for simultaneous or staged output of two gas flows, resulting in smooth gas flow, low resistance, and uniform pressure distribution, thus improving gas supply efficiency and combustion stability. At the same time, the overall valve core structure is compact, facilitating integration into small gas appliances (such as portable gas stoves), ensuring a wide range of firepower adjustment while enhancing product safety and reliability.

[0008] The primary objective of this utility model can also be achieved by the following technical measures: Furthermore, the first air outlet is a fan-shaped opening.

[0009] The first gas outlet is designed as a fan-shaped opening, allowing the gas passage to gradually open or close during valve core rotation, enabling linear regulation of gas flow. This structure effectively avoids the sudden flow changes that occur when switching between traditional round or straight orifice openings, resulting in smoother firepower changes, a smoother ignition process, and more stable combustion. Simultaneously, the fan-shaped opening increases the gas flow area, achieving higher flow output at the same opening degree, thereby enhancing stove firepower performance and improving the user experience.

[0010] Furthermore, it also includes a valve core sleeve, the valve core sleeve having a valve core receiving cavity, the end of the valve core sleeve having an air hole that communicates with the valve core receiving cavity, and the side wall of the valve core sleeve having a first intermediate air port, a second intermediate air port, and a third intermediate air port that communicate with the valve core receiving cavity. The valve core is inserted into the valve core receiving cavity, the valve core and the valve core receiving cavity cooperate, and the rotation of the valve core realizes the opening or closing of the first intermediate air port, the second intermediate air port and the third intermediate air port; When the first intermediate air port and the first air outlet are connected, the first intermediate air port is opened; when the first intermediate air port and the first air outlet are misaligned, the first intermediate air port is closed. When the second intermediate air port and the first air outlet are connected, the second intermediate air port is opened; when the second intermediate air port and the first air outlet are misaligned, the second intermediate air port is closed. When the third intermediate air port and the second air outlet are connected, the third intermediate air port is opened; when the third intermediate air port and the second air outlet are misaligned, the third intermediate air port is closed.

[0011] By incorporating a valve core sleeve with multiple intermediate gas ports, a high-precision fit is achieved between the valve core and the sleeve. As the valve core rotates, the opening and closing of these intermediate gas ports can be controlled individually, enabling independent or simultaneous opening of multiple gas flow channels. This design not only ensures a clear gas flow path and precise switching but also significantly improves airtightness, preventing leakage. The valve core sleeve structure also effectively compensates for valve body machining errors, ensuring stable and reliable valve core operation, thereby achieving graded control of firepower and improved combustion stability.

[0012] Furthermore, it also includes a front sealing ring and a rear sealing ring. The front sealing ring is disposed in the adjustment cavity and abuts against the end of the valve core sleeve. The rear sealing ring is disposed in the valve core receiving cavity and abuts against the front end of the valve core.

[0013] By incorporating a front and rear sealing ring in the valve core assembly, a double-sealing structure is formed, effectively preventing gas leakage between the valve core and its sleeve. The front sealing ring blocks external gas infiltration, while the rear sealing ring prevents high-pressure gas leakage, thereby improving the overall airtightness and safety of the unit. This structure not only enhances the pressure resistance and durability of the valve core assembly but also maintains stable pressure within the airflow channel, ensuring uniform and reliable flame output.

[0014] The second objective of this utility model is achieved as follows: A cartridge oven valve includes a valve body, which has an internal air inlet, a pressure reducing chamber, a regulating chamber, a first exhaust chamber, a second exhaust chamber, and a third exhaust chamber. The valve body is provided with a gas pipe connection port or a gas cylinder connector. The inlet of the air inlet is connected to the gas pipe connection port or the gas cylinder connector, the outlet of the air inlet is connected to the inlet of the pressure reducing chamber, and the outlet of the pressure reducing chamber is connected to the inlet of the regulating chamber. The inlet of the first exhaust duct is connected to the outlet of the regulating chamber, and the outlet of the first exhaust duct extends out of the valve body for connection to the burner head; The inlet of the second exhaust duct is connected to the outlet of the regulating chamber, and the outlet of the second exhaust duct extends out of the valve body for connection to the burner head; The inlet of the third exhaust duct is connected to the outlet of the regulating chamber, and the outlet of the third exhaust duct extends out of the valve body for connection to the furnace head; The valve body has an installation port at the position corresponding to the adjustment chamber. The front end of the valve core device passes through the installation port and enters the adjustment chamber so that the first outlet and the first intermediate air port are connected, the second outlet and the second intermediate air port are connected, and the third outlet and the third intermediate air port are connected. The tail end of the valve core device protrudes outside the installation port to form a control part. The valve core device rotates to control the opening degree of the first exhaust passage, the second exhaust passage, and the third exhaust passage.

[0015] The aforementioned multi-channel valve core device is applied to cassette furnace valves. By rotating the valve core, the opening degree of the first, second, and third exhaust channels can be controlled simultaneously or in stages, enabling sequential ignition and firepower adjustment of multi-ring flames. This design achieves single-knob multi-channel control, making the firepower adjustment process continuous, smooth, and easy to operate; at the same time, the three independent gas supply channels ensure uniform flame distribution and high thermal efficiency, meeting both the needs of low-fire heat preservation and high-fire rapid heating.

[0016] The beneficial effects of this utility model are as follows: This invention, by setting a Y-shaped channel inside the valve core that communicates with the gas passage, allows the gas to be split inside the valve core and output through different ports. The gas can be split and guided inside the valve core without the need for an additional external distribution structure, which significantly simplifies the gas circuit system and reduces connection points and leakage risks. Through the geometric branching design of the Y-shaped channel, two gas flows can be output simultaneously or in stages, resulting in smooth gas flow, low resistance, and uniform pressure distribution, thereby improving gas supply efficiency and combustion stability.

[0017] This invention also allows the valve core sleeve structure to effectively compensate for valve body machining errors, ensuring stable and reliable valve core operation, thereby achieving graded control of firepower and improving combustion stability.

[0018] This invention forms a double sealing structure by setting a front sealing ring and a rear sealing ring in the valve core device, which effectively prevents gas leakage between the valve core and the valve core sleeve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a cassette oven valve (closed position).

[0020] Figure 2 This is a schematic diagram of the cassette oven valve from another angle (closed state).

[0021] Figure 3 This is a schematic diagram of the cassette oven valve from another angle (closed state).

[0022] Figure 4 for Figure 1 A cross-sectional view of a cassette oven valve.

[0023] Figure 5 This is a schematic diagram of a cassette oven valve (in use).

[0024] Figure 6 for Figure 5 A cross-sectional view of a cassette oven valve.

[0025] Figure 7 This is an assembly drawing of the valve core, valve core sleeve, and valve body.

[0026] Figure 8 This is a schematic diagram of the valve body (excluding the valve core assembly).

[0027] Figure 9 This is a schematic diagram of the valve body from another angle (excluding the valve core device).

[0028] Figure 10 This is an assembly drawing of the valve core assembly.

[0029] Figure 11 This is another assembly view of the valve core assembly.

[0030] Figure 12This is another assembly view of the valve core assembly.

[0031] Figure 13 This is a cross-sectional view of the valve core.

[0032] Figure 14 This is a cross-sectional view of the valve core from another angle. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments: Implementation examples, in conjunction with Figures 1 to 14 As shown, a cartridge furnace valve includes a valve body 1, a valve core device 2, and an igniter. The valve body 1 has an internal air inlet, a pressure reducing chamber 12, an adjusting chamber 13, a first exhaust duct 14, a second exhaust duct 15, and a third exhaust duct 16. The valve body 1 is equipped with a gas cylinder connector 3. The inlet of the air inlet is connected to the gas cylinder connector 3, the outlet of the air inlet is connected to the inlet of the pressure reducing chamber 12, and the outlet of the pressure reducing chamber 12 is connected to the inlet of the adjusting chamber 13. The inlet of the first exhaust duct 14 is connected to the outlet of the regulating chamber 13, and the outlet of the first exhaust duct 14 extends out of the valve body 1 for connection to the burner head; The inlet of the second exhaust duct 15 is connected to the outlet of the regulating chamber 13, and the outlet of the second exhaust duct 15 extends out of the valve body 1 for connection to the burner head; The inlet of the third exhaust duct 16 is connected to the outlet of the regulating chamber 13, and the outlet of the third exhaust duct 16 extends out of the valve body 1 for connection to the burner head; The valve body 1 has an installation port at the position corresponding to the adjustment chamber 13. The front end of the valve core device 2 passes through the installation port and enters the adjustment chamber 13, while the rear end of the valve core device 2 protrudes outside the installation port to form a control part 20. The igniter is mounted on the valve body 1, and the push-button switch of the igniter is located near the control unit 20; When the valve core device 2 rotates, the control unit 20 starts or stops the igniter. At the same time, the valve core device 2 controls the opening degree of the outlet of the regulating chamber 13, thereby controlling the opening degree of the first exhaust passage 14, the second exhaust passage 15 and the third exhaust passage 16.

[0034] Furthermore, the regulating cavity 13 has a first outlet 131, a second outlet 132 and a third outlet 133. The first outlet 131 is connected to the inlet of the first exhaust passage 14, the second outlet 132 is connected to the inlet of the second exhaust passage 15, and the third outlet 133 is connected to the inlet of the third exhaust passage 16.

[0035] Furthermore, the valve core device 2 includes a valve core 4, the valve core 4 has an air passage 41, the front end of the valve core 4 has an air inlet 42 communicating with the air passage 41, and the side wall of the valve core 4 near its front end has a first air outlet 43 communicating with the air passage 41 and a second air outlet 44 communicating with the air passage 41 spaced apart. The rotation of the valve core 4 opens or closes the first outlet 131, the second outlet 132, and the third outlet 133. When the first outlet 131 and the first air outlet 43 are connected, the first outlet 131 is opened; when the first outlet 131 and the first air outlet 43 are misaligned, the first outlet 131 is closed. When the second outlet 132 is connected to the first outlet 43, the second outlet 132 is opened; when the second outlet 132 and the first outlet 43 are misaligned, the second outlet 132 is closed. When the third outlet 133 is connected to the second air outlet 44, the third outlet 133 is opened; when the third outlet 133 is misaligned with the second air outlet 44, the third outlet 133 is closed.

[0036] Furthermore, the valve core 4 has a Y-shaped channel 45, the air passage 41 is connected to the Y-shaped channel 45, the first port and the second port of the Y-shaped channel 45 are connected to form the first air outlet 43, and the third port of the Y-shaped channel 45 forms the second air outlet 44.

[0037] Furthermore, the valve core device 2 also includes a valve core sleeve 5, the valve core sleeve 5 having a valve core receiving cavity 51, the end of the valve core sleeve 5 having an air hole 53 communicating with the valve core receiving cavity 51, and the side wall of the valve core sleeve 5 having a first intermediate air port 54 communicating with the valve core receiving cavity 51, a second intermediate air port 55 communicating with the valve core receiving cavity 51, and a third intermediate air port 56 communicating with the valve core receiving cavity 51. The valve core sleeve 5 is disposed in the regulating cavity 13, the air hole 53 is connected to the inlet of the regulating cavity 13, the first intermediate air port 54 is connected to the first outlet 131, the second intermediate air port 55 is connected to the second outlet 132, and the third intermediate air port 56 is connected to the third outlet 133. The valve core 4 is inserted into the valve core receiving cavity 51, and the valve core 4 and the valve core receiving cavity 51 are engaged. The rotation of the valve core 4 opens or closes the first intermediate air port 54, the second intermediate air port 55, and the third intermediate air port 56. When the first intermediate air port 54 and the first air outlet 43 are connected, the first intermediate air port 54 is opened; when the first intermediate air port 54 and the first air outlet 43 are misaligned, the first intermediate air port 54 is closed. When the second intermediate air port 55 is connected to the first air outlet 43, the second intermediate air port 55 is opened; when the second intermediate air port 55 and the first air outlet 43 are misaligned, the second intermediate air port 55 is closed. When the third intermediate air port 56 is connected to the second air outlet 44, the third intermediate air port 56 is opened; when the third intermediate air port 56 and the second air outlet 44 are misaligned, the third intermediate air port 56 is closed.

[0038] Furthermore, it also includes a front sealing ring 6 and a rear sealing ring 7. The front sealing ring 6 is disposed in the adjustment cavity 13 and abuts against the end of the valve core sleeve 5. The rear sealing ring 7 is disposed in the valve core receiving cavity 51 and abuts against the front end of the valve core 4.

[0039] Furthermore, the inner wall of the regulating cavity 13 is provided with slots 134, and the outer wall of the valve core sleeve 5 is provided with a locking block 57. The locking block 57 is inserted into the slots 134, and the valve core 4 is positioned and locked in the regulating cavity 13.

[0040] Furthermore, the first air outlet 43 is a fan-shaped opening.

[0041] Furthermore, it includes a housing, a burner head, and a knob. The burner head is located on the top of the housing, the cassette valve is located inside the housing cavity, and the tail end of the valve core device 2 extends out of the housing and connects to the knob. The burner head includes an outermost ring flame gas pipe, an outer ring flame gas pipe, and an inner ring flame gas pipe. The first exhaust duct 4114 is connected to the outermost ring flame gas pipe, the second exhaust duct 4115 is connected to the outer ring flame gas pipe, and the third exhaust duct 16 is connected to the inner ring flame gas pipe.

[0042] The method for adjusting the heat of a portable gas stove provided by this invention includes the following steps: The user rotates the external knob to drive the valve core device 2 to rotate. The valve core 4 rotates in the accommodating cavity of the valve core sleeve 5, so that the first air outlet 43 and the second air outlet 44 on the valve core 4 are connected or misaligned with the first intermediate air outlet 54, the second intermediate air outlet 55 and the third intermediate air outlet 56 on the valve core sleeve 5 in sequence, thereby realizing the graded opening and closing of multi-channel airflow.

[0043] When the knob is at the initial small angle, only the third intermediate gas port 56 is connected to the second gas outlet 44, and the gas is transported to the inner ring gas pipe through the third exhaust passage 16 to form a small flame. As the knob continues to rotate, the second intermediate air port 55 connects with the first air outlet 43, activating the outer ring flame. With further rotation, the first intermediate air port 54 connects with the first air outlet 43, and the outermost ring flame is ignited simultaneously, achieving a fully open state of all three ring flames.

[0044] This method allows users to smoothly and continuously adjust the heat from low to high using a single knob, resulting in even heat distribution and stable combustion. It can meet the needs of maintaining a low flame while also providing strong heat output. The operation is simple, safe, and reliable.

Claims

1. A valve core device, comprising a valve core, characterized in that: The valve core has an air passage and a Y-shaped channel, and the air passage and the Y-shaped channel are connected. The valve core has an air inlet at its front end that connects to the air passage. The first port and the second port of the Y-shaped channel are connected to form a first air outlet, and the third port of the Y-shaped channel forms a second air outlet.

2. The valve core device according to claim 1, characterized in that: The first air outlet is a fan-shaped opening.

3. The valve core device according to claim 2, characterized in that: It also includes a valve core sleeve, which has a valve core receiving cavity. The end of the valve core sleeve is spaced apart with air holes that communicate with the valve core receiving cavity. The side wall of the valve core sleeve is spaced apart with a first intermediate air port, a second intermediate air port, and a third intermediate air port that communicate with the valve core receiving cavity. The valve core is inserted into the valve core receiving cavity, the valve core and the valve core receiving cavity cooperate, and the rotation of the valve core realizes the opening or closing of the first intermediate air port, the second intermediate air port and the third intermediate air port; When the first intermediate air port and the first air outlet are connected, the first intermediate air port is opened; when the first intermediate air port and the first air outlet are misaligned, the first intermediate air port is closed. When the second intermediate air port and the first air outlet are connected, the second intermediate air port is opened; when the second intermediate air port and the first air outlet are misaligned, the second intermediate air port is closed. When the third intermediate air port and the second air outlet are connected, the third intermediate air port is opened; when the third intermediate air port and the second air outlet are misaligned, the third intermediate air port is closed.

4. The valve core device according to claim 3, characterized in that: It also includes a front sealing ring and a rear sealing ring. The front sealing ring is disposed in the adjustment cavity and abuts against the end of the valve core sleeve. The rear sealing ring is disposed in the valve core receiving cavity and abuts against the front end of the valve core.

5. A cassette furnace valve employing the valve core device as described in any one of claims 1-3, characterized in that: The device includes a valve body, which has an internal air inlet, a pressure reducing chamber, a regulating chamber, a first exhaust port, a second exhaust port, and a third exhaust port. The valve body is equipped with a gas pipe connection port or a gas cylinder connector. The inlet of the air inlet is connected to the gas pipe connection port or the gas cylinder connector, the outlet of the air inlet is connected to the inlet of the pressure reducing chamber, and the outlet of the pressure reducing chamber is connected to the inlet of the regulating chamber. The inlet of the first exhaust duct is connected to the outlet of the regulating chamber, and the outlet of the first exhaust duct extends out of the valve body for connection to the burner head; The inlet of the second exhaust duct is connected to the outlet of the regulating chamber, and the outlet of the second exhaust duct extends out of the valve body for connection to the burner head; The inlet of the third exhaust duct is connected to the outlet of the regulating chamber, and the outlet of the third exhaust duct extends out of the valve body for connection to the furnace head; The valve body has an installation port at the position corresponding to the adjustment chamber. The front end of the valve core device passes through the installation port and enters the adjustment chamber so that the first outlet and the first intermediate air port are connected, the second outlet and the second intermediate air port are connected, and the third outlet and the third intermediate air port are connected. The tail end of the valve core device protrudes outside the installation port to form a control part. The valve core device rotates to control the opening degree of the first exhaust passage, the second exhaust passage, and the third exhaust passage.

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