A dual-gas source gas stove

Abstract

The present invention belongs to the technical field of gas stoves, and in particular to a dual-gas-source gas stove. Aiming at the technical problem that the burners of existing dual-gas-source gas stoves are not provided with a reliable protection structure, and the burners are directly exposed to the outside and are likely to fall into water and oil stains, which is likely to cause damage to the burners in the long run, the following solutions are proposed. It includes a pair of burners and a pair of opening and closing valves installed at the upper end of the gas stove top. The burner includes a second support seat and a first support seat arranged up and down. A protection mechanism is connected to the upper end of the burner, and a support ring is arranged between the protection mechanism and the burner. By connecting a protection mechanism to the upper end of the burner in the present invention, the setting of the protection mechanism can shield and protect the burner when the burner is idle, effectively preventing external oil stains or water droplets from directly falling into the inner side of the burner, protecting the burner, and when in use, there is no need to manually open the protection mechanism. The protection mechanism automatically opens when the cooking utensil is placed for heating, and automatically closes when the cooking utensil for heating is removed, protecting the burner in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of gas stoves, and particularly to a dual-gas-source gas stove. Background Art

[0002] A gas stove is a commonly used household appliance. There are various types of gas that can be used in a gas stove. Different gases have different characteristics, and their parameters such as heat load, combustion potential, and Wobbe index are all different. Therefore, different gases must use different valves to enable the gas to burn fully and maximize the utilization of the heat energy of the gas. The gas valves configured in existing gas stoves can only be used for one gas source. If the gas source needs to be changed, the valve must be replaced or the components inside the valve must be replaced to achieve stable combustion of another gas source on the same gas stove.

[0003] However, the above operations are very inconvenient for both manufacturers and users, and at the same time cause great waste of resources. If the user replaces it by himself, there is also a certain risk, which is likely to lead to catastrophic accidents. For this reason, Chinese Patent Application No. 201820928655.9 provides a dual-gas-source gas stove applicable to different gas sources to solve the above problems. The dual-gas-source gas stove sequentially includes along the gas flow path: a pressure detection device for detecting the pressure of the flowing gas; a gas source selection valve for selecting an internal gas flow path according to different gas types; a nozzle assembly for selecting different gas outlet paths according to different gas types; and a burner for receiving the gas conveyed by the nozzle assembly and igniting it at the output end of the burner. The internal gas flow path of the gas source selection valve can be switched according to the type of gas connected, and the nozzle assembly can be controlled to select different gas outlet paths to adapt to the characteristics of the gas, and thus it can be applicable to different gases. When switching the gas type, there is no need to replace the valve body or components. In addition, Chinese Patent Application No. 201210403326.X proposes a dual-gas-source gas valve with adjustable air dampers. When different connectors are connected to the dual-gas-source gas valve, the linkage rod will be triggered, thereby changing the size of the primary air damper, and thus changing the ratio of gas to air to achieve the best combustion effect. In addition, Chinese Patent Application No. 201220521243.6 proposes a dual-gas-source valve cooker. Since it is provided with a dual-gas-source valve, and the dual-gas-source gas valve can automatically select different nozzle outlets according to different pressures, so as to achieve the purpose that the nozzle size is different for gases with different pressures. The dual-gas-source nozzles provided on the valve can realize the conversion between high-pressure gas and low-pressure gas without replacing the nozzles and related parts.

[0004] However, the burner heads of the above dual-gas-source gas stoves, including the existing dual-gas-source gas stoves, are not provided with a reliable protection structure. The burner heads are directly exposed to the outside and are prone to falling water and oil stains, which are likely to cause damage to the burner heads in the long run. Summary of the Invention

[0005] Based on the technical problem that the burners of existing dual-gas-source gas stoves are not provided with reliable protection structures, and the burners are directly exposed to the outside and are prone to falling into water and oil stains, which is likely to cause damage to the burners in the long run, the present invention proposes a dual-gas-source gas stove.

[0006] A dual-gas-source gas stove proposed by the present invention includes a pair of burners and a pair of opening and closing valves installed at the upper end of the gas stove top, and the pair of opening and closing valves respectively control the opening and closing of the pair of burners. The burner includes a second support seat and a first support seat arranged up and down, and the first support seat is fixedly connected to the second support seat. A protection mechanism is connected to the upper end of the burner, and a support ring is arranged between the protection mechanism and the burner.

[0007] Preferably, the protection mechanism includes a plurality of independent protection units, and the plurality of independent protection units are closely arranged with each other.

[0008] Preferably, the protection unit includes a protection plate, a movable plate and a wedge-shaped pot support block. A storage groove for placing the movable plate is arranged at the end of the protection plate located inside the second support seat. A sliding hole communicating with the storage groove is arranged at the upper end of the protection plate. The lower end of the wedge-shaped pot support block is fixedly connected with an L-shaped sliding block, and the L-shaped sliding block penetrates through the sliding hole and is fixedly connected to the end of the movable plate located inside the storage groove.

[0009] Preferably, the lower end of the protection plate is fixedly connected with an arc-shaped mounting plate, and the arc-shaped mounting plate is clamped outside the second support seat, and the arc-shaped mounting plate and the second support seat are fixedly connected by bolts.

[0010] Preferably, a compression spring is fixedly connected between the movable plate and the inner wall of the storage groove, and the stretching direction of the compression spring is towards the center of the second support seat. An arc-shaped flow collecting groove is arranged on the outer wall of the top of the movable plate on the side far from the compression spring. The flow collecting grooves on the plurality of movable plates form an annular structure. The two ends of the flow collecting groove are penetrated, and the depth of the flow collecting groove gradually increases from the two ends to the middle position.

[0011] Preferably, an elastic scroll storage box is fixedly connected to the center of the upper end of the protection plate away from the center of the second support seat. An elastic scroll is arranged in the elastic scroll storage box, and a high-temperature resistant protection belt is wound on the elastic scroll. The free end of the high-temperature resistant protection belt is fixedly connected to the wedge-shaped pot support block, and the high-temperature resistant protection belt is located directly above the sliding hole.

[0012] Preferably, the support ring is fixedly connected to the upper end of the second support seat by bolts. A plurality of high points and bottom valleys are evenly spaced on the upper end surface of the support ring, and the plurality of protection units are respectively installed at the high points on the support ring.

[0013] Preferably, a partition bump is integrally provided at the bottom valley point on the support ring, and the partition bump is located at the gap between two adjacent protection units.

[0014] Preferably, an embedding groove is formed at the bottom of the movable plate, and the width of the embedding groove gradually increases toward the side close to the wedge-shaped pot support block. The inner wall of the top of the embedding groove is fixed with equally spaced partition sheets, and the length of the partition sheets gradually increases toward the side close to the wedge-shaped pot support block.

[0015] Preferably, oil-repellent coatings are plated on the surfaces of the protection plate, the movable plate and the wedge-shaped pot support block, and the protection plate, the movable plate and the wedge-shaped pot support block are all made of heat-insulating metal materials.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. For this dual-gas stove, by connecting a protection mechanism to the upper end of the stove head and arranging a support ring between the protection mechanism and the stove head, the protection mechanism includes a plurality of independent protection units, and the plurality of independent protection units are closely arranged with each other. The setting of this protection mechanism can shield and protect the multi-stove heads when the stove head is idle, effectively preventing external oil stains or water droplets from directly falling into the inner side of the stove head, protecting the stove head. And when in use, there is no need to manually open the protection mechanism. The protection mechanism automatically opens when a cooking pot is placed for heating, and automatically closes when the cooking pot is removed. It protects the stove head in real time, and the protection mechanism is automatically closed by the spring mechanism to avoid human forgetting and avoid scalding caused by manual operation.

[0018] 2. For this dual-gas stove, by fixedly connecting a compression spring between the movable plate and the inner wall of the storage groove, and the stretching direction of the compression spring is toward the center of the second support seat. In the state where no cooking pot is placed, the plurality of movable plates are in a state of being in contact with each other under the action of their own gravity and the compression spring. External oil stains or water droplets are not likely to directly fall into the inner side of the stove head, effectively protecting the stove head. When a cooking pot is placed, the movable plate moves outward and opens relying on the gravity of the pot itself. The bottom of the cooking pot is in close contact with the top of the movable plate, so that the flow collecting groove at the top of the movable plate is at the bottom of the cooking pot. The arc structure of the flow collecting groove recessed toward the middle position is used to collect the liquid outside the pot when using the cooking pot, and avoid dripping to further improve the protection effect on the stove head.

[0019] 3. For this dual-gas-source gas stove, since the protective plate, the movable plate, and the wedge-shaped pot support block are all made of heat-insulating metal materials, on the one hand, heat loss can be reduced, enabling heat to be concentrated in the heating area for efficient heating. Moreover, by utilizing the change in the width of the embedding groove at the bottom of the movable plate, the airflow movement near the fire source becomes more intense. In cooperation with the vibration of the spacer made of elastic material in the embedding groove, the air chamber is squeezed towards the side close to the compression spring, thereby further compressing outward under high-temperature conditions during use, causing the movable plates to open to ensure the normal fire supply and use effect of the gas stove. On the other hand, it can effectively prevent the compression spring from being overheated and losing its elastic performance. An oil-repellent coating is plated on the surfaces of the protective plate, the movable plate, and the wedge-shaped pot support block, facilitating users to clean the residual stains.

[0020] 4. For this dual-gas-source gas stove, an elastic scroll storage box is fixedly connected to the upper center of the protective plate away from the center of the second support seat. An elastic scroll is arranged in the elastic scroll storage box, and a high-temperature-resistant protective belt is wound on the elastic scroll. The free end of the high-temperature-resistant protective belt is fixedly connected to the wedge-shaped pot support block, and the high-temperature-resistant protective belt is located directly above the sliding hole. When the burner is idle, multiple movable plates are in a state of being attached to each other under the action of their own gravity and the compression spring, and it is not easy for external oil stains or water droplets to directly fall into the inner side of the burner, effectively protecting the burner. The high-temperature-resistant protective belt blocks the sliding hole under the pulling action of the wedge-shaped pot support block, and can effectively prevent external oil stains or water droplets from falling into the sliding hole and causing difficulties in the sliding of the movable plate.

[0021] Parts not involved in this device are the same as or can be implemented using existing technologies. In the present invention, a protective mechanism with multiple independent protective units closely arranged is connected to the upper end of the burner. The setting of this protective mechanism can shield and protect multiple burners when the burner is idle, effectively preventing external oil stains or water droplets from directly falling into the inner side of the burner and protecting the burner. Moreover, when in use, there is no need to manually open the protective mechanism. The protective mechanism automatically opens when a cooking pot is placed for heating and automatically closes when the cooking pot is removed, protecting the burner in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a dual-gas-source gas stove proposed by the present invention;

[0023] Figure 2 is a schematic structural diagram of a dual-gas-source gas stove in a state of placing a cooking pot for heating proposed by the present invention;

[0024] Figure 3 is a schematic structural diagram of a dual-gas-source gas stove during the process of placing a cooking pot for heating proposed by the present invention;

[0025] Figure 4 is a schematic structural diagram of the burner dispersion of a dual-gas-source gas stove proposed by the present invention;

[0026] Figure 5 Schematic diagram of the structure of the protection plate of a dual-gas source gas stove according to the present invention in a partially cut-away state;

[0027] Figure 6 Bottom view structure diagram of the protection plate of a dual-gas source gas stove according to the present invention.

[0028] In the figure: 1, gas stove top; 2, opening and closing valve; 3, burner head; 4, heating cookware; 5, first support seat; 6, second support seat; 7, support ring; 8, partition bump; 9, high point; 10, bottom valley point; 11, protection plate; 12, arc-shaped mounting plate; 13, movable plate; 1301, flow collecting groove; 1302, embedding groove; 1303, spacer; 14, storage groove; 15, L-shaped slider; 16, wedge-shaped pot support block; 17, sliding hole; 18, compression spring; 19, elastic scroll storage box; 20, high-temperature resistant protection belt. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Embodiment 1

[0032] Refer to Figures 1-6, a dual-gas source gas stove, comprising a pair of burners 3 and a pair of opening and closing valves 2 installed at the upper end of a gas stove top 1, and the pair of opening and closing valves 2 respectively control the opening and closing of the pair of burners 3. The burner 3 includes a second support base 6 and a first support base 5 arranged up and down, and the first support base 5 is fixedly connected to the second support base 6. A protective mechanism is connected to the upper end of the burner 3, and a support ring 7 is arranged between the protective mechanism and the burner 3. The protective mechanism includes a plurality of independent protection units, and the plurality of independent protection units are closely arranged with each other. The protection unit includes a protection plate 11, a movable plate 13 and a wedge-shaped pot support block 16. At the end of the protection plate 11 located inside the second support base 6, there is a storage groove 14 for placing the movable plate 13. A sliding hole 17 communicating with the storage groove 14 is arranged at the upper end of the protection plate 11. The lower end of the wedge-shaped pot support block 16 is fixedly connected with an L-shaped slider 15. The L-shaped slider 15 penetrates through the sliding hole 17 and is fixedly connected to the end of the movable plate 13 located inside the storage groove 14. The lower end of the protection plate 11 is fixedly connected with an arc-shaped mounting plate 12, and the arc-shaped mounting plate 12 is clamped outside the second support base 6. The arc-shaped mounting plate 12 and the second support base 6 are fixedly connected by bolts. In the state where no heating pot 4 is placed, the plurality of movable plates 13 are in a state of being in contact with each other under the action of their own gravity. External oil stains or water droplets are not easily directly dropped into the inside of the burner 3, effectively protecting the burner 3. And the protective mechanism is automatically closed by a spring mechanism to avoid human forgetting, and to avoid scalding caused by manual operation; when placing the heating pot 4, the bottom end of the heating pot 4 presses the wedge-shaped pot support block 16, and the wedge-shaped pot support block 16 drives the movable plate 13 to slide in a direction away from the center of the burner 3 through the L-shaped slider 15, and the plurality of movable plates 13 move away from each other, realizing the opening of the protective mechanism. At this time, the burner 3 can be started by using the opening and closing valve 2 to heat the heating pot 4; the setting of this protective mechanism can shield and protect the burner 3 when the burner 3 is idle, effectively preventing external oil stains or water droplets from directly dropping into the inside of the burner 3 and protecting the burner 3.

[0033] In the present invention, a compression spring 18 is fixedly connected between the inner wall of the movable plate 13 and the storage groove 14, and the stretching direction of the compression spring 18 is towards the center of the second support base 6. An arc-shaped flow collecting groove 1301 is formed on the outer wall of the top of the movable plate 13 on the side away from the compression spring 18. The flow collecting grooves 1301 on multiple movable plates 13 form an annular structure. The two ends of the flow collecting groove 1301 are penetrated. The depth of the flow collecting groove 1301 gradually increases from the two ends of the opening towards the middle position. In the state where the heating cooker 4 is not placed, multiple movable plates 13 are in a state of being in contact with each other under their own gravity and the acting force of the compression spring 18, and external oil stains or water droplets are not easily directly dropped into the inner side of the burner 3, effectively protecting the burner 3. When the heating cooker 4 is placed, the movable plate 13 moves outwards and opens relying on the gravity of the cooker itself. The bottom of the heating cooker 4 is closely attached to the top of the movable plate 13, so that the flow collecting groove 1301 on the top of the movable plate 13 is located at the bottom of the heating cooker 4. The arc-shaped structure of the flow collecting groove 1301 that is recessed towards the middle position is used to collect the liquid outside the cooker when using the heating cooker 4, and avoid dripping to further improve the protection effect on the burner 3.

[0034] Among them, the support ring 7 is fixedly connected to the upper end of the second support base 6 by bolts. A plurality of support high points 9 and bottom valley points 10 are evenly spaced on the upper end surface of the support ring 7. A plurality of protection units are respectively installed at the support high points 9 on the support ring 7. A partition bump 8 is integrally provided at the bottom valley point 10 on the support ring 7, and the partition bump 8 is located at the gap between adjacent two protection units.

[0035] Among them, an embedding groove 1302 is formed at the bottom of the movable plate 13, and the width of the embedding groove 1302 gradually increases towards the side close to the wedge-shaped cooker supporting block 16. The inner wall of the top of the embedding groove 1302 is fixed with equally spaced partition pieces 1303, and the length of the partition pieces 1303 gradually increases towards the side close to the wedge-shaped cooker supporting block 16. The partition pieces 1303 are made of elastic materials. The change in the width of the embedding groove 1302 at the bottom of the movable plate 13 makes the air flow movement closer to the fire source more intense. The elastic partition pieces 1303 vibrate in the embedding groove 1302, and the partition pieces 1303 are used to squeeze the air cavity towards the side close to the compression spring 18, so as to further compress outwards under high temperature during the use process, and make the movable plates 13 open to ensure the normal fire supply use effect of the gas stove.

[0036] Among them, the protection plate 11, the movable plate 13 and the wedge-shaped cooker supporting block 16 are all made of heat-insulating metal materials. On the one hand, it can reduce heat loss, so that the heat is concentrated in the heating area for efficient heating. On the other hand, it can effectively prevent the compression spring 18 from being overheated and losing its elastic performance. The surfaces of the protection plate 11, the movable plate 13 and the wedge-shaped cooker supporting block 16 are all coated with oil-repellent coatings, which is convenient for users to clean the remaining stains.

[0037] Working principle: First, fix and connect the support ring 7 to the upper end of the second support base 6 using bolts. Then, arrange multiple protection units in alignment with multiple partition bumps 8, and use the arc-shaped mounting plate 12 to clamp the outside of the second support base 6. Next, fix the arc-shaped mounting plate 12 to the second support base 6 using bolts. In the state where the heating cooker 4 is not placed, multiple movable plates 13 are in a state of being in contact with each other under the action of their own gravity and the compression springs 18, and it is not easy for external oil stains or water droplets to directly fall into the inner side of the burner 3, effectively protecting the burner 3. When placing the heating cooker 4, the bottom end of the heating cooker 4 presses the wedge-shaped pot support block 16, and the wedge-shaped pot support block 16 drives the movable plate 13 to slide away from the center of the burner 3 through the L-shaped slider 15, and the multiple movable plates 13 move away from each other, realizing the opening of the protection mechanism. At this time, the burner 3 can be started by using the opening and closing valve 2 to heat the heating cooker 4. The setting of this protection mechanism can shield and protect the burner 3 when the burner 3 is idle, effectively preventing external oil stains or water droplets from directly falling into the inner side of the burner 3 and protecting the burner 3. In addition, during use, there is no need to manually open the protection mechanism. The protection mechanism automatically opens when the heating cooker 4 is placed and automatically closes when the heating cooker 4 is removed, protecting the burner 3 in real time.

[0038] Embodiment 2

[0039] Refer to Figures 1-5 , a dual-gas cooking stove. Compared with Embodiment 1, in this embodiment, an elastic scroll storage box 19 is fixedly connected to the center of the upper end of the protection plate 11 away from the center of the second support base 6. An elastic scroll is provided in the elastic scroll storage box 19, and a high-temperature resistant protection belt 20 is wound on the elastic scroll. The free end of the high-temperature resistant protection belt 20 is fixedly connected to the wedge-shaped pot support block 16, and the high-temperature resistant protection belt 20 is located directly above the sliding hole 17. When the burner 3 is idle, multiple movable plates 13 are in a state of being in contact with each other under the action of their own gravity and the compression springs 18, and it is not easy for external oil stains or water droplets to directly fall into the inner side of the burner 3, effectively protecting the burner 3. The high-temperature resistant protection belt 20 is blocked at the sliding hole 17 under the pulling action of the wedge-shaped pot support block 16, which can effectively prevent external oil stains or water droplets from falling into the sliding hole 17 and causing difficulties in the sliding of the movable plate 13.

[0040] It should be further noted that the electrical control method used in this application document is automatically controlled by a controller and powered by an external power supply. The control circuit of the controller can be realized by simple programming by those skilled in the art and belongs to the common knowledge in the art. And this application document is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this application document.

[0041] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention any equivalent replacement or change made according to the technical solution and inventive concept of the present invention.

Claims

1. A dual-gas-source gas stove, comprising a pair of burners (3) and a pair of opening and closing valves (2) installed at the upper end of a gas stove top (1), and the pair of opening and closing valves (2) respectively control the opening and closing of the pair of burners (3). The burner (3) comprises a second support base (6) and a first support base (5) arranged up and down, and the first support base (5) is fixedly connected to the second support base (6), characterized in that, A protection mechanism is connected to the upper end of the stove head (3), and a support ring (7) is arranged between the protection mechanism and the stove head (3); The protection mechanism includes a plurality of independent protection units, and the plurality of independent protection units are closely arranged with each other; The protection unit includes a protection plate (11), a movable plate (13) and a wedge-shaped pot support block (16). An accommodation groove (14) for placing the movable plate (13) is arranged at the end of the protection plate (11) inside the second support seat (6). A sliding hole (17) communicating with the accommodation groove (14) is arranged at the upper end of the protection plate (11). The lower end of the wedge-shaped pot support block (16) is fixedly connected with an L-shaped slider (15). The L-shaped slider (15) penetrates through the sliding hole (17) and is fixedly connected with the end of the movable plate (13) inside the accommodation groove (14). A compression spring (18) is fixedly connected between the movable plate (13) and the inner wall of the accommodation groove (14), and the stretching direction of the compression spring (18) is towards the center of the second support seat (6). An arc-shaped water collecting groove (1301) is arranged on the outer wall of the top of the movable plate (13) on the side away from the compression spring (18). The water collecting grooves (1301) on the plurality of movable plates (13) form an annular structure. The two ends of the water collecting groove (1301) are arranged in a penetrating manner, and the depth of the water collecting groove (1301) gradually increases from the two ends of the opening towards the middle position; An elastic scroll storage box (19) is fixedly connected to the center of the upper end of the protection plate (11) away from the center of the second support seat (6). An elastic scroll is arranged in the elastic scroll storage box (19). A high-temperature resistant protection belt (20) is wound on the elastic scroll. The free end of the high-temperature resistant protection belt (20) is fixedly connected with the wedge-shaped pot support block (16), and the high-temperature resistant protection belt (20) is located directly above the sliding hole (17); An embedding groove (1302) is arranged at the bottom of the movable plate (13), and the width of the embedding groove (1302) gradually increases towards the side close to the wedge-shaped pot support block (16). Equally spaced partition sheets (1303) are fixed on the inner wall of the top of the embedding groove (1302). The length of the partition sheets (1303) gradually increases towards the side close to the wedge-shaped pot support block (16). The partition sheets (1303) are made of elastic materials.

2. The dual-gas-source gas stove according to claim 1, wherein The lower end of the protection plate (11) is fixedly connected with an arc-shaped mounting plate (12), and the arc-shaped mounting plate (12) is clamped outside the second support seat (6). The arc-shaped mounting plate (12) and the second support seat (6) are fixedly connected by bolts.

3. The dual-gas stove according to claim 2, characterized in that, The support ring (7) is fixedly connected to the upper end of the second support seat (6) by bolts. A plurality of support high points (9) and bottom valley points (10) are evenly spaced on the upper end surface of the support ring (7). A plurality of protection units are respectively installed at the support high points (9) on the support ring (7).

4. The dual-gas-source gas stove according to claim 3, wherein, A partition convex block (8) is integrally arranged at the bottom valley point (10) on the support ring (7), and the partition convex block (8) is located at the gap between adjacent two protection units.

5. The dual-gas source gas stove according to claim 4, characterized in that, The surfaces of the protective plate (11), the movable plate (13) and the wedge-shaped pot support block (16) are all coated with an oil-repellent coating, and the protective plate (11), the movable plate (13) and the wedge-shaped pot support block (16) are all made of heat-insulating metal materials.

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