Combustor and stove
By introducing a snap structure and reset parts into the burner, the damper gear is automatically adjusted by using thermally-induced deformation parts or hot melts, the safety hazards caused by stove fire are solved, the flame is restored to normal combustion, and the safety of use is improved and reduces production costs.
Patent Information
- Application Number
- CN202323085504.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-11-15
AI Technical Summary
The stove is prone to fire during use, causing the flame to retract back to the inner cavity of the stove, causing explosion and safety hazards. The existing technology cannot effectively adjust the damper gear, which increases safety risks.
设计了一种燃烧器，包含燃烧器组件和回火保护组件，利用卡位结构和复位件在回火时自动调小风门挡位，通过热感应变形件或热熔件感应温度变化切换状态，带动风门片转动，减少进风量，恢复正常燃烧。
It effectively reduces safety hazards caused by backfire, avoids negative pressure inside the stove shell and burst of glass panels, improves user safety, and omits the baffle settings, reducing manufacturing costs.
Smart Images
Figure CN222230545U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen electrical products, in particular to a burner and a stove. Background Art
[0002] A stove is a common kitchen appliance, mainly used for direct fire cooking, and is an indispensable appliance in life. A stove usually includes a panel, a burner, and a pot rack, wherein the panel is installed on the stove, and a mounting hole for the burner to pass through is provided on the panel, and the pot rack is arranged outside the burner and is used to place cooking utensils for cooking.
[0003] During the use of stoves, flashback may occur. Flashback refers to the flame retracting into the inner cavity of the stove, causing the stove to "explode". When flashback occurs, combustion will occur in the stove cavity or at the damper, and an explosion sound will be emitted. Stove flashback will cause negative pressure to form inside the stove shell. In severe cases, it will also cause the stove glass panel to burst or cause a fire, threatening the user's life and property safety. In order to solve the problem of stove flashback, some stoves in the prior art will install a flashback plate on the burner head, but the flashback plate can only prevent the flame from retracting into the inner cavity of the stove, and cannot adjust the damper position, so there is still a safety hazard.
[0004] Therefore, it is urgent to propose a burner to solve the above problems. Utility Model Content
[0005] Based on the above problems, the purpose of the utility model is to provide a burner and a stove, which can automatically close the air door when backfire occurs, so that the flame can resume normal combustion and reduce safety hazards.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A burner, comprising:
[0008] A burner assembly, comprising a burner body, a valve body and an air flap, wherein the air flap is rotatably arranged at the inlet of the burner body, the nozzle of the valve body passes through the air flap and is connected to the inlet of the burner body, and a gear slot is arranged on the burner body;
[0009] A backfire protection component includes a latching structure and a reset member, wherein the latching structure is arranged on the air flap, and the latching structure has a first state in which it can be latched in the gear slot and a second state in which it can be disengaged from the gear slot, and is configured to be able to switch from the first state to the second state when backfire occurs in the burner, and the reset member is configured to drive the air flap to rotate when the latching structure is in the second state to reduce the air flap gear position.
[0010] As a preferred solution of the burner provided by the utility model, the locking structure is a heat-sensitive deformable part, which can sense the temperature change at the air flap and can deform to switch from the first state to the second state when the tempering temperature is sensed.
[0011] As a preferred solution of the burner provided by the utility model, the thermally induced deformation part includes a first metal sheet and a second metal sheet, the second metal sheet is arranged on a side of the first metal sheet close to the burner body, and the thermal expansion coefficient of the second metal sheet is greater than the thermal expansion coefficient of the first metal sheet.
[0012] As a preferred solution of the burner provided by the utility model, the first metal sheet includes a fitting portion and a clamping portion which are arranged at an angle and connected to each other, the fitting portion is connected to the air flap, the second metal sheet is fitted to the side of the fitting portion close to the burner body, and the clamping portion can be clamped with the gear slot.
[0013] As a preferred solution of the burner provided by the utility model, the first metal sheet includes a fitting portion and a clamping portion connected to each other, the fitting portion is connected to the air flap, the second metal sheet is fitted to the side of the fitting portion close to the burner body, and the clamping portion is provided with a clamping protrusion that can be clamped with the gear slot.
[0014] As a preferred solution of the burner provided by the utility model, the locking structure is a hot melt component, which is detachably connected to the air flap, and the hot melt component is configured to melt when the temperature at the air flap reaches a preset temperature to switch from the first state to the second state.
[0015] As a preferred solution of the burner provided by the utility model, the air flap is provided with a connecting protrusion, and the hot melt component is provided with a slot, and the connecting protrusion can be snapped into the slot.
[0016] As a preferred solution of the burner provided by the utility model, the reset member is a spring.
[0017] As a preferred solution of the burner provided by the utility model, the reset member includes a counterweight block and a connecting rope, one end of the connecting rope is connected to the air flap, and the other end of the connecting rope passes through the burner body and is connected to the counterweight block.
[0018] In order to achieve the above-mentioned object, the utility model further provides a stove, comprising a panel and at least one burner as described above, wherein the burner is installed on the panel.
[0019] The beneficial effects of the utility model are:
[0020] The burner provided by the utility model comprises a burner assembly and a backfire protection assembly. The burner assembly comprises a burner body, a valve body and an air flap. The air flap is rotatably arranged at the inlet of the burner body. The nozzle of the valve body passes through the air flap and is connected with the inlet of the burner body. A gear slot is arranged on the burner body. The backfire protection assembly comprises a locking structure and a reset member. The locking structure is arranged on the air flap. The locking structure has a first state in which it can be locked in the gear slot and a second state in which it can be disengaged from the gear slot, and is configured to switch from the first state to the second state when backfire occurs in the burner. The reset member is configured to drive the air flap to rotate when the locking structure is in the second state. When the stove backfires, the locking structure switches from the first state to the second state, that is, the locking structure is out of the gear slot of the burner body, and the air flap can rotate under the reset action of the reset member, so that the inlet of the burner body and the air inlet of the air flap are misaligned, thereby reducing the air intake at the inlet of the burner body, and then restoring the flame to normal combustion, reducing the safety hazards caused by the stove backfire, and ensuring the safety of the stove. In addition, the burner omits the setting of the gear plate, which can save materials and reduce manufacturing costs.
[0021] The stove provided by the utility model, by applying the above-mentioned burner, can automatically close the damper when backfire occurs, so that the flame can resume normal combustion, reduce safety hazards, and protect the personal and property safety of users. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0023] Figure 1 It is a schematic diagram of an explosion of a burner provided in an embodiment of the utility model;
[0024] Figure 2 It is a structural schematic diagram of a burner provided in an embodiment of the utility model;
[0025] Figure 3 It is a structural schematic diagram of a burner body provided by an embodiment of the utility model;
[0026] Figure 4 It is a structural schematic diagram of the air flap and the locking structure provided by the embodiment of the utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the burner provided by the embodiment of the utility model when no flashback occurs. Figure 1 ;
[0028] Figure 6 It is a schematic diagram of the structure of the burner provided by the embodiment of the utility model when the flashback phenomenon occurs;
[0029] Figure 7 This is a schematic diagram of the structure of the burner provided by the embodiment of the utility model when no flashback occurs. Figure 2 ;
[0030] Figure 8 It is a side view schematic diagram of the burner provided by the embodiment of the utility model when no flashback phenomenon occurs;
[0031] Fig. 9 yes Figure 8 A local enlarged view at point A;
[0032] Fig.10 This is a schematic diagram of the structure of the first locking structure provided by the embodiment of the utility model when it is in the second state Figure 1 ;
[0033] Fig.11 This is a schematic diagram of the structure of the first locking structure provided by the embodiment of the utility model when it is in the second state Figure 2 ;
[0034] Fig.12 It is a structural schematic diagram of a second locking structure and an air flap provided in an embodiment of the utility model.
[0035] In the figure:
[0036] 1-burner assembly; 11-burner body; 111-shift slot; 112-inlet; 113-mounting bracket; 114-hanging ring; 12-valve body; 13-air flap; 131-air inlet; 132-connecting convex;
[0037] 2-tempering protection assembly; 21-locking structure; 211-first metal sheet; 2111-fitting portion; 2112-locking portion; 2113-locking protrusion; 212-second metal sheet; 22-resetting member; 221-counterweight block; 222-connecting rope. DETAILED DESCRIPTION
[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0041] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0042] The present embodiment provides a stove, which includes a panel, a pot rack and at least one burner, wherein the burner is mounted on the panel, and the pot rack is arranged outside the burner and is used to place cooking utensils for cooking. By arranging at least one burner on the panel, cooking efficiency can be improved and cooking needs of users can be met.
[0043] Figure 1 An explosion diagram of the burner provided in this embodiment is shown. Figure 2 A schematic structural diagram of the burner provided in this embodiment is shown. Figure 3 The schematic diagram of the structure of the burner body 11 provided in this embodiment is shown. Figure 4 FIG. 2 shows a schematic structural diagram of the air flap 13 and the locking structure 21 provided in this embodiment. Figure 1-Figure 4As shown, in order to reduce the potential safety hazard caused by backfire of the stove, the present embodiment further provides a burner, which includes a burner assembly 1 and a backfire protection assembly 2. The burner assembly 1 includes a burner body 11, a valve body 12 and an air flap 13. The air flap 13 is rotatably arranged at the inlet 112 of the burner body 11. The nozzle of the valve body 12 passes through the air flap 13 and is communicated with the inlet 112 of the burner body 11. A gear slot 111 is arranged on the burner body 11; the backfire protection assembly 2 includes a locking structure 21 and a reset member 22. The locking structure 21 is arranged on the air flap 13. The locking structure 21 has a first state in which it can be locked in the gear slot 111 and a second state in which it is separated from the gear slot 111, and is configured to switch from the first state to the second state when backfire occurs in the burner. The reset member 22 is configured to drive the air flap 13 to rotate when the locking structure 21 is in the second state to reduce the air door gear.
[0044] Figure 5 The schematic diagram of the structure of the burner provided in this embodiment when no flashback occurs is shown. Figure 1 . Figure 6 FIG. 2 shows a schematic diagram of the structure of the burner provided in this embodiment when flashback occurs. Figure 5-Figure 6 Combined with Figure 3 and Figure 4 As shown, the inlet 112 arranged on the burner body 11 is an arc-shaped structure, and the air flap 13 is provided with an arc-shaped air inlet 131. When the user uses the stove normally, the inlet 112 is directly opposite to the air inlet 131 to ensure that the inlet 112 of the burner body 11 has sufficient air intake. At this time, the positioning structure 21 is in the first state, and the position of the air flap 13 and the burner body 11 is relatively fixed; when the stove backfires, the positioning structure 21 switches from the first state to the second state, that is, the positioning structure 21 is out of the gear slot 111 of the burner body 11, and the air flap 13 can rotate under the reset action of the reset member 22, so that the inlet 112 and the air inlet 131 are misaligned, thereby reducing the air intake at the inlet 112 of the burner body 11, and then the flame resumes normal combustion, reducing the safety hazards caused by the backfire of the stove, and ensuring the safety of the stove. In addition, the burner provided in this embodiment omits the setting of the gear plate, which can save materials and reduce manufacturing costs.
[0045] It should be explained that when the inlet 112 of the burner body 11 is completely aligned with the air inlet 131 of the air flap 13, the air intake at the inlet 112 of the burner body 11 is the maximum value; when the inlet 112 of the burner body 11 is completely misaligned with the air inlet 131 of the air flap 13, the air intake at the inlet 112 of the burner body 11 is zero. In this embodiment, when the reset member 22 is in a natural state, the inlet 112 of the burner body 11 is partially aligned with or completely misaligned with the air inlet 131 of the air flap 13, so that the air intake at the inlet 112 of the burner body 11 is reduced or no air intake.
[0046] In this embodiment, the reset member 22 is a spring, and the two ends of the spring are respectively connected to the air flap 13 and the burner body 11. The spring has a large elastic restoring force, is easy to obtain, and has a low manufacturing cost. Specifically, a mounting bracket 113 is also provided on the burner body 11, and the mounting bracket 113 is used to connect one end of the spring to ensure the stability of the spring installed on the burner body 11.
[0047] Figure 7 The schematic diagram of the structure of the burner provided in this embodiment when no flashback occurs is shown. Figure 2 . In another embodiment, the reset member 22 includes a counterweight 221 and a connecting rope 222, one end of the connecting rope 222 is connected to the air flap 13, and the other end of the connecting rope 222 passes through the burner body 11 and is connected to the counterweight 221. When the stove backfires, the temperature at the air flap 13 increases, and the locking structure 21 switches from the first state to the second state to escape from the gear slot 111. Under the gravity of the counterweight 221, the connecting rope 222 can pull the air flap 13 to rotate, so that the inlet 112 and the air inlet 131 are misaligned, reducing the air intake, so that the flame resumes normal combustion, reducing the safety hazards caused by the stove backfire, and ensuring the safety of the stove. In this embodiment, the connecting rope 222 is a steel wire rope, the material cost of the steel wire rope is low, and it is strong and durable, which can extend the service life of the burner.
[0048] Optionally, a hanging ring 114 is provided on the burner body 11, and the connecting rope 222 is passed through the hanging ring 114 and can slide relative to the hanging ring 114, thereby ensuring that the connecting rope 222 can smoothly pull the air flap 13 to rotate when the stove backfires, thereby avoiding jamming of the connecting rope 222 when sliding relative to the burner body 11.
[0049] Figure 8 A schematic side view of the burner provided in this embodiment when no flashback occurs is shown. Fig. 9 Shows Figure 8 A partial enlarged view of point A. Fig.10 The schematic diagram shows the structure of the first locking structure 21 provided in this embodiment when it is in the second state. Figure 1 .like Figure 8-Figure 10 As shown, in one embodiment, the locking structure 21 is a thermally induced deformable member, which can sense the temperature change at the air flap 13 and can deform to switch from the first state to the second state when the tempering temperature is sensed.
[0050] Optionally, the thermally induced deformation piece is welded to the air flap 13, which provides a stable connection and is convenient for processing.
[0051] Specifically, the thermally induced deformation member includes a first metal sheet 211 and a second metal sheet 212. The second metal sheet 212 is disposed on a side of the first metal sheet 211 close to the burner body 11, and the thermal expansion coefficient of the second metal sheet 212 is greater than the thermal expansion coefficient of the first metal sheet 211. When the user uses the stove normally, the thermally induced deformation member is in a straight state, and the thermally induced deformation member is stuck in the gear slot 111 of the burner body 11; when the stove is tempered, the temperature at the air flap 13 rises, and the first metal sheet 211 and the second metal sheet 212 are deformed, and the thermal expansion coefficient of the second metal sheet 212 is greater than the thermal expansion coefficient of the first metal sheet 211, so that the thermally induced deformation member bends toward the side away from the burner body 11, so that the thermally induced deformation member is disengaged from the gear slot 111. After the tempering phenomenon ends, the temperature at the air flap 13 decreases, and the thermally induced deformation member returns to its original state. The user adjusts the air flap 13 as needed to re-insert the thermally induced deformation member into the gear slot 111.
[0052] Fig.11 The schematic diagram shows the structure of the first locking structure 21 provided in this embodiment when it is in the second state. Figure 2 .like Figure 10-11 As shown, in one example, the first metal sheet 211 includes a fitting portion 2111 and a clamping portion 2112 which are arranged at an angle and connected to each other, the fitting portion 2111 is connected to the air flap 13, and the second metal sheet 212 is fitted to the side of the fitting portion 2111 close to the burner body 11, and the clamping portion 2112 can be clamped with the gear slot 111, with a simple structure and convenient processing; by connecting the fitting portion 2111 and the clamping portion 2112 at an angle, the clamping portion 2112 can be easily clamped into the gear slot 111.
[0053] In another example, the first metal sheet 211 includes a connected fitting portion 2111 and a clamping portion 2112, the fitting portion 2111 is connected to the air flap 13, the second metal sheet 212 is fitted to a side of the fitting portion 2111 close to the burner body 11, and the clamping portion 2112 is provided with a clamping protrusion 2113 that can be clamped with the shift clamping slot 111. By providing the clamping protrusion 2113 on the clamping portion 2112, the clamping and disengagement of the thermally induced deformation member and the shift clamping slot 111 can be achieved more conveniently.
[0054] Optionally, the second metal sheet 212 is bonded to the fitting portion 2111; or the second metal sheet 212 is welded to the fitting portion 2111, and the connection is stable and convenient for assembly. Of course, in other embodiments, the second metal sheet 212 and the fitting portion 2111 can also be connected in other ways, which is not limited in this embodiment.
[0055] Fig.12 FIG. 2 shows a schematic diagram of the structure of the second locking structure 21 and the air flap 13 provided in an embodiment of the utility model. Fig.12 As shown, in another embodiment, the locking structure 21 is a hot melt component, which is detachably connected to the air flap 13, and the hot melt component is configured to melt when the temperature at the air flap 13 reaches a preset temperature, so as to switch from the first state to the second state. When the user uses the stove normally, the hot melt component is in the first state, that is, the hot melt component is locked in the gear slot 111; when the stove is tempered, the temperature at the air flap 13 rises, and when the preset temperature is reached, the hot melt component melts, so as to switch from the first state to the second state, at which time the air flap 13 can rotate under the reset action of the reset component 22. After the tempering phenomenon ends, the user can reinstall a new hot melt component on the air flap 13, and adjust the air flap 13 as needed to make the hot melt component snap into the gear slot 111.
[0056] The hot melt is connected to the air flap 13, and the connection is stable and convenient for disassembly. Specifically, the air flap 13 is provided with a connection card protrusion 132, and the hot melt is provided with a connection card slot, and the connection card protrusion 132 can be connected to the connection card slot.
[0057] In this embodiment, the hot melt component is a flexible sheath, and the sheath hole of the flexible sheath forms the above-mentioned connecting card slot. This arrangement can facilitate the user to replace the hot melt component. When the user installs the hot melt component, the hot melt component can be deformed to adapt to the shape of the connecting card protrusion 132, and can be closely matched with the connecting card protrusion 132 under the action of its own elastic restoring force.
[0058] The material of the hot melt component is not limited in this embodiment, as long as the hot melt component is structurally reliable at room temperature, can be stably engaged with the shift slot 111, and has a melting point below 200°C, it can be used. For example, the hot melt component can be made of rubber. The preset temperature in this embodiment is the melting point temperature of the hot melt component.
[0059] To ensure the stability of the stove, the hot melt is interference fit in the gear slot 111 to ensure the stability of the connection between the hot melt and the burner body 11, preventing the hot melt from falling out of the gear slot 111 when the user is using the stove and affecting cooking efficiency.
[0060] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A burner, characterized in that: include: A burner assembly (1) comprises a burner body (11), a valve body (12) and an air flap (13), wherein the air flap (13) is rotatably arranged at an inlet (112) of the burner body (11), a nozzle of the valve body (12) passes through the air flap (13) and is connected to the inlet (112), and a gear slot (111) is arranged on the burner body (11); A backfire protection assembly (2) comprises a latching structure (21) and a reset member (22), wherein the latching structure (21) is arranged on the air flap (13), the latching structure (21) has a first state in which it can be latched in the gear slot (111) and a second state in which it is disengaged from the gear slot (111), and is configured to be able to switch from the first state to the second state when the burner backfires, and the reset member (22) is configured to be able to drive the air flap (13) to rotate when the latching structure (21) is in the second state, so as to reduce the air flap gear position.
2. The burner according to claim 1, characterized in that The locking structure (21) is a heat-sensitive deformable component, which can sense temperature changes at the air flap (13) and can deform to switch from the first state to the second state when the tempering temperature is sensed.
3. The burner according to claim 2, characterized in that: The thermally induced deformation member comprises a first metal sheet (211) and a second metal sheet (212), wherein the second metal sheet (212) is arranged on a side of the first metal sheet (211) close to the burner body (11), and the thermal expansion coefficient of the second metal sheet (212) is greater than the thermal expansion coefficient of the first metal sheet (211).
4. The burner according to claim 3, characterized in that The first metal sheet (211) comprises a fitting portion (2111) and a clamping portion (2112) which are arranged at an angle and connected to each other; the fitting portion (2111) is connected to the air flap (13); the second metal sheet (212) is fitted to a side of the fitting portion (2111) close to the burner body (11); and the clamping portion (2112) can be clamped with the gear slot (111).
5. The burner according to claim 3, characterized in that The first metal sheet (211) comprises a connecting portion (2111) and a clamping portion (2112) connected to each other, the connecting portion (2111) being connected to the air flap (13), the second metal sheet (212) being connected to a side of the connecting portion (2111) close to the burner body (11), and the clamping portion (2112) being provided with a clamping protrusion (2113) capable of clamping with the gear clamping slot (111).
6. The burner according to claim 1, characterized in that The locking structure (21) is a hot melt component, which is detachably connected to the air flap (13), and is configured to melt when the temperature at the air flap (13) reaches a preset temperature, so as to switch from the first state to the second state.
7. The burner according to claim 6, characterized in that The air flap (13) is provided with a connecting clamping protrusion (132), and the hot melt component is provided with a clamping slot, and the connecting clamping protrusion (132) can be clamped in the clamping slot.
8. The burner according to any one of claims 1 to 7, characterized in that: The reset element (22) is a spring.
9. The burner according to any one of claims 1 to 7, characterized in that: The reset member (22) comprises a counterweight (221) and a connecting rope (222), one end of the connecting rope (222) being connected to the air flap (13), and the other end of the connecting rope (222) passing through the burner body (11) and being connected to the counterweight (221).
10. A cooking appliance, characterized in that: The invention comprises a panel and at least one burner according to any one of claims 1 to 9, wherein the burner is mounted on the panel.