A commercial gas stove fire watching device
By designing the cylinder and linkage insulation components, the problems of complex structure and high cost of commercial gas stove fire observation devices are solved, enabling safe and fast fire observation operations and ensuring the health of chefs and cooking results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHANGSHENG KITCHENWARE CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-23
Smart Images

Figure CN224397849U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gas stove fire observation devices, specifically relating to a commercial gas stove fire observation device. Background Technology
[0002] In the cooking process, the control of the gas stove's heat is crucial to the cooking of dishes. Chefs need to periodically observe the state of the heat inside the gas stove through the viewing port, such as the intensity, color, and stability of the heat, to determine whether the heat needs to be adjusted so that the dishes can be cooked at the optimal temperature, ensuring the final quality of the food.
[0003] However, in the kitchen, many chefs still rely on their naked eyes to observe the flame through the viewing port. While this method is intuitive and clear, the high temperatures of the gas stove during combustion can cause dry eyes, stinging, and decreased vision if the chef observes too closely, potentially even burning the retina and seriously threatening their eye health. Currently, there are viewing devices on the market that are fixed to the viewing port of the gas stove, such as transparent lenses, but this design doesn't consider that over time, the lens can easily become covered in smoke and dirt, making it difficult to clearly observe the flame inside the stove. Furthermore, prolonged exposure to high temperatures can cause the lens to deform or break.
[0004] Currently, although some patents have improved the aforementioned fire-viewing devices by introducing cooling gas into the fixed fire-viewing device to lower the temperature and prevent the lens from breaking or deforming due to high temperatures, such devices not only require an external cooling airflow device, resulting in a complex structure, cumbersome adjustment steps, and high production and operating costs, but also suffer from the influence of external airflow on the flame inside the gas stove, thus interfering with the control of cooking heat. This makes them unsuitable for commercial gas stoves that require precise heat adjustment. Therefore, there is an urgent need for a commercial gas stove fire-viewing device that can solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a commercial gas stove flame observation device to address the aforementioned shortcomings. It aims to solve the problems of current flame observation devices, which, in order to meet the requirements of long-term use, result in complex overall structures, high operating costs, and easy interference with the gas stove flame, thus affecting cooking results. To achieve the above objective, this utility model provides the following technical solution:
[0006] A commercial gas stove observation device includes a cylindrical body and a linkage heat insulation assembly. The cylindrical body includes a first section, a second section, and a third section arranged coaxially and having the same diameter. A gap is formed between the first section and the second section, and between the second section and the third section, with the distance between the two gaps being the same. The rear end of the third section is fixed to the observation port of the gas stove. The linkage heat insulation assembly includes a linkage rod and two heat insulation components. The two heat insulation components are movably disposed between the two gaps and are parallel to each other. The linkage rod is used to drive the two heat insulation components to rotate synchronously, so that the two heat insulation components simultaneously block the two gaps to seal the second section, or simultaneously unblock the two gaps to facilitate observation.
[0007] Furthermore, the heat insulation component includes a heat insulation plate, a first connecting portion, and a second connecting portion; the first connecting portion and the second connecting portion are connected to the side wall of the heat insulation plate and do not interfere with each other; the linkage rod is used to be fixedly connected to both first connecting portions simultaneously; the second connecting portion is used to rotatably connect the two heat insulation components between two intervals respectively.
[0008] Furthermore, the outer peripheral wall of the linkage rod is provided with a first thread; the linkage rod is provided with three limiting members; the limiting members are movably engaged with the outer peripheral wall of the linkage rod through the first thread and are capable of axial movement; the rear end of the linkage rod is fixedly provided with an end limiting member; the first connecting part has a first through hole; the linkage rod passes through two first through holes simultaneously to connect with two heat insulation members at the same time; one limiting member is used to cooperate with the end limiting member to clamp one of the heat insulation plates, and the other two limiting members are used to cooperate to clamp and fix the other heat insulation plate, so that the position between the two heat insulation plates and the linkage rod is fixed.
[0009] Furthermore, positioning rings are provided at the rear end of the first cylindrical section, at both ends of the second cylindrical section, and at the front end of the third cylindrical section; the positioning rings are provided with connecting lugs; the second connecting parts of the two heat insulation components are respectively hinged to the connecting lugs between the first and second cylindrical sections and between the second and third cylindrical sections.
[0010] Furthermore, the inner diameter of the positioning ring is the same as the inner diameter of the cylinder, and the outer diameter of the positioning ring is larger than the outer diameter of the cylinder; the diameter of the heat insulation plate is the same as the outer diameter of the positioning ring.
[0011] Furthermore, a handle is provided on one end of the linkage rod near the first cylindrical section.
[0012] Furthermore, it also includes an anti-slip sleeve; the anti-slip sleeve is tightly fitted onto the outer peripheral wall of the first cylindrical section.
[0013] Furthermore, the end limiting member is detachably connected to the rear end of the linkage rod.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model has a simple structure and low manufacturing cost. By rotating the linkage rod, the state of the two heat insulation components simultaneously blocking or unblocking the two intervals can be quickly switched. This allows for intuitive, clear and quick fire observation when the intervals are unblocked. Furthermore, the second cylinder section can be sealed by blocking the two intervals before and after fire observation, which greatly reduces heat conduction efficiency, ensures the safety of the device, and is highly practical. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 1 ;
[0017] Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 2 ;
[0018] Figure 3 This is a front view of the present invention; the linkage rod is not shown.
[0019] In the attached diagram: 1. Cylinder body; 2. Linkage rod; 3. Heat insulation component; 4. Positioning ring; 5. Anti-slip sleeve; 11. First cylinder section; 12. Second cylinder section; 13. Third cylinder section; 21. First thread; 22. Limiting component; 23. End limiting component; 24. Handle; 31. Heat insulation plate; 32. First connecting part; 33. Second connecting part; 321. First through hole; 41. Connecting lug. Detailed Implementation
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.
[0022] In the description of this utility model, "multiple" means two or more.
[0023] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.
[0024] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.
[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.
[0027] Example 1:
[0028] See attached Figure 1A commercial gas stove observation device includes a cylindrical body 1 and a linkage heat insulation assembly. The cylindrical body 1 includes a first cylindrical section 11, a second cylindrical section 12, and a third cylindrical section 13 arranged coaxially and having the same diameter. There are gaps between the first cylindrical section 11 and the second cylindrical section 12, and between the second cylindrical section 12 and the third cylindrical section 13, with the distance between the two gaps being the same. The rear end of the third cylindrical section 13 is fixed to the observation port of the gas stove. The linkage heat insulation assembly includes a linkage rod 2 and two heat insulation components 3. The two heat insulation components 3 are movably disposed between the two gaps and are parallel to each other. The linkage rod 2 is used to drive the two heat insulation components 3 to rotate synchronously, so that the two heat insulation components 3 simultaneously block the two gaps to seal the second cylindrical section 12, or simultaneously unblock the two gaps to facilitate observation. As can be seen from the above structure, the cylinder 1 serves as the installation base for the linkage insulation assembly. It is hollow internally and includes three coaxially arranged sections: a first section 11, a second section 12, and a third section 13. The inner and outer diameters of these three sections are identical. The front end of the first section 11 is for personnel to observe the fire, and the rear end of the third section 13 is for fixed connection to the observation port. The connection method can be welding, bolting, or other existing technologies. Furthermore, the first section 11 and the second section 12, and the second section 12 and the third section 13, are spaced apart, with the distance between the two spaces being the same. The linkage insulation assembly is used to insulate the front end of the cylinder 1, i.e., the first section 11, and specifically includes a linkage rod 2 and two insulation components 3. The linkage rod 2 drives the two heat insulation components 3 to rotate synchronously. These components simultaneously block the gap between the first cylindrical section 11 and the second cylindrical section 12, and the gap between the second cylindrical section 12 and the third cylindrical section 13, thus sealing both ends of the second cylindrical section 12. This creates a sealed space inside the second cylindrical section 12, located in the middle of the cylinder 1. The heat insulation component 3 near the third cylindrical section 13 also prevents flue gas from exiting into the second cylindrical section 12. Compared to a separate cylinder baffle structure, this sealed space significantly reduces heat conduction efficiency and improves insulation, ensuring that the temperature of the first cylindrical section 11 held by the operator is not too high, thus guaranteeing the safety of the device. When observation of the fire is required, the operator can rotate the linkage rod 2 to simultaneously rotate the two heat insulation components 3, releasing the obstruction of the two gaps. This allows for direct, clear, and quick observation of the fire inside the gas stove through the hollow portion of the cylinder 1. The linkage rod 2 can then be quickly rotated again to block the two gaps once more. In addition, the overall length can be adjusted by adjusting the lengths of the first section 11, the second section 12 and the third section 13 in the cylinder 1, ensuring that staff have a safe enough distance to observe the fire.Furthermore, since the two gaps in the cylinder 1 are exposed during fire observation, the flue gas discharged from the gas stove will preferentially enter the atmosphere through the two gaps for heat dissipation, instead of directly rushing towards the first cylinder section 111, further ensuring the safety of personnel when directly observing the fire. This utility model has a simple structure, low manufacturing cost, and simple operation method, enabling clear, intuitive, and quick fire observation. It is highly safe to use and can be applied to different gas stoves, making it highly practical.
[0029] Preferably, the surface of the heat insulation component 3 may also be coated with a high-temperature heat insulation coating. The specific heat insulation layer material and coating method are existing technologies, and those skilled in the art can choose them according to their needs.
[0030] Example 2:
[0031] See attached Figures 1-3 Based on Embodiment 1, the heat insulation component 3 includes a heat insulation plate 31, a first connecting part 32, and a second connecting part 33; the first connecting part 32 and the second connecting part 33 are connected to the side wall of the heat insulation plate 31 and do not interfere with each other; the linkage rod 2 is used to be fixedly connected to the two first connecting parts 32 at the same time; the second connecting part 33 is used to rotatably connect the two heat insulation components 3 between the two gaps respectively. As can be seen from the above structure, the heat insulation plate 31 is used to completely block or unblock the gap between the first cylindrical section 11 and the second cylindrical section 12 and the gap between the second cylindrical section 12 and the third cylindrical section 13. The first connecting part 32 and the second connecting part 33 are both provided on the side wall of the heat insulation plate 31 and do not interfere with each other. The two first connecting parts 32 of the two heat insulation components 3 are used to connect to the linkage rod 2 at the same time, and the second connecting part 33 is used to rotatably connect the two heat insulation components 3 between the two gaps. Therefore, the heat insulation plate 31 can rotate relative to the cylinder 1. The linkage rod 2 connects the two heat insulation plates 31 at the same time, which enables the two heat insulation plates 31 to rotate synchronously, thereby realizing the simultaneous blocking or unblocking of the two gaps.
[0032] The outer peripheral wall of the linkage rod 2 is provided with a first thread 21; the linkage rod 2 is provided with three limiting members 22; the limiting members 22 are movably engaged with the outer peripheral wall of the linkage rod 2 through the first thread 21 and can move axially; the rear end of the linkage rod 2 is fixedly provided with an end limiting member 23; the first connecting part 32 has a first through hole 321; the linkage rod 2 passes through two first through holes 321 simultaneously to connect with two heat insulation members 3; one limiting member 22 is used to cooperate with the end limiting member 23 to clamp one of the heat insulation plates 31, and the other two limiting members 22 are used to cooperate to clamp and fix the other heat insulation plate 31, so that the position between the two heat insulation plates 31 and the linkage rod 2 is fixed. As can be seen from the above structure, the outer peripheral wall of the linkage rod 2 is provided with a first thread 21, and the linkage rod 2 is provided with three limiting members 22, which can be movably engaged with the outer peripheral wall of the linkage rod 2 through the first thread 21 and can move axially. Specifically, the first thread 21 is an external thread, and the inner wall of the limiting member 22 is provided with an internal thread that mates with the first thread 21. Therefore, the axial position on the outer peripheral wall of the linkage rod 2 can be adjusted by rotating the limiting member 22. The linkage rod 2 is connected to the first connecting part 32 of the two heat insulation members 3 by passing through two first through holes 321 simultaneously. Furthermore, through the cooperation between the two limiting members 22 and between a limiting member 22 and the end limiting member 23, the relative position of the two heat insulation plates 31 with the linkage rod 2 is fixed in a clamping and limiting manner. Therefore, when the linkage rod 2 rotates, it can synchronously drive the two heat insulation plates 31 to rotate.
[0033] Positioning rings 4 are provided at the rear end of the first cylindrical section 11, at both ends of the second cylindrical section 12, and at the front end of the third cylindrical section 13. The positioning rings 4 are provided with connecting lugs 41. The second connecting portions 33 of the two heat insulation components 3 are respectively hinged to the connecting lugs 41 between the first cylindrical section 11 and the second cylindrical section 12, and to the connecting lugs 41 between the second cylindrical section 12 and the third cylindrical section 13. From the above structure, it can be seen that the connecting lugs 41 of the positioning rings 4 provide an installation base for the heat insulation components 3. The second connecting portions 33 of the two heat insulation components 3 are rotatably mounted on the two positioning rings 4 opposite to each other between the first cylindrical section 11 and the second cylindrical section 12, and on the two positioning rings 4 opposite to each other between the second cylindrical section 12 and the third cylindrical section 13, through hinged connections. Specifically, the second connecting part 33 may be provided with a second through hole, and the connecting lug 41 may be provided with a third through hole. The second through hole of the second connecting part 33 is placed between the third through holes of the two opposite connecting lugs 41 and aligned. Then, the heat insulation component 3 is rotatably connected to the cylinder 1 by bolts passing through both third through holes and the second through hole simultaneously.
[0034] The inner diameter of the positioning ring 4 is the same as the inner diameter of the cylinder 1, and the outer diameter of the positioning ring 4 is larger than the outer diameter of the cylinder 1; the diameter of the heat insulation plate 31 is the same as the outer diameter of the positioning ring 4. From the above structure, it can be seen that the inner diameter of the positioning ring 4 is the same as the inner diameter of the cylinder 1, which does not affect the field of vision for workers to observe the fire through the cylinder 1 after the heat insulation plate 31 is removed. However, by setting the outer diameter of the positioning ring 4 to be larger than the outer diameter of the cylinder 1, it can block the entry of the heat insulation plate 31 from the cylinder 1 into the partition, or guide the heat insulation plate 31 as it rotates out of the cylinder 1 from the partition.
[0035] Example 3:
[0036] See attached Figures 1-3 Based on Embodiment 2, a handle 24 is also provided on one end of the linkage rod 2 near the first cylindrical section 11. As can be seen from the above structure, the handle 24 is convenient for workers to grip and rotate.
[0037] It also includes an anti-slip sleeve 5; the anti-slip sleeve 5 is tightly fitted onto the outer peripheral wall of the first cylindrical section 11. As can be seen from the above structure, the anti-slip sleeve 5 is used to prevent slippage of the first cylindrical section 11, ensuring the stability of the worker's grip. Specifically, various anti-slip textures can also be provided on the outer peripheral wall of the anti-slip sleeve 5 to improve the anti-slip effect. The selection and setting of anti-slip textures are existing technologies, and therefore will not be elaborated here.
[0038] The end limiting member 23 is detachably connected to the rear end of the linkage rod 2. As can be seen from the above structure, setting the end limiting member 23 to be detachably connected to the rear end of the linkage rod 2 facilitates the replacement of the linkage rod 2. The linkage rod 2 can be replaced by removing the end limiting member 23 and the limiting member 22 in sequence, thereby disconnecting the linkage rod 2 from the two heat insulation members 3.
[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A commercial gas stove flame observation device, characterized in that: The device includes a cylinder (1) and a linkage heat insulation assembly. The cylinder (1) includes a first cylinder section (11), a second cylinder section (12), and a third cylinder section (13) arranged coaxially and with the same diameter. There are gaps between the first cylinder section (11) and the second cylinder section (12), and between the second cylinder section (12) and the third cylinder section (13), and the distance between the two gaps is the same. The rear end of the third cylinder section (13) is fixed on the observation port of the gas stove. The linkage heat insulation assembly includes a linkage rod (2) and two heat insulation components (3). The two heat insulation components (3) are respectively movably arranged between the two gaps and are parallel to each other. The linkage rod (2) is used to drive the two heat insulation components (3) to rotate synchronously, so that the two heat insulation components (3) simultaneously block the two gaps to seal the second cylinder section (12), or simultaneously unblock the two gaps to facilitate observation of the fire.
2. The commercial gas stove fire observation device according to claim 1, characterized in that: The heat insulation component (3) includes a heat insulation plate (31), a first connecting part (32), and a second connecting part (33); the first connecting part (32) and the second connecting part (33) are connected to the side wall of the heat insulation plate (31) and do not interfere with each other; the linkage rod (2) is used to fix it to the two first connecting parts (32) at the same time; the second connecting part (33) is used to rotatably connect the two heat insulation components (3) between the two gaps respectively.
3. The commercial gas stove fire observation device according to claim 2, characterized in that: The outer peripheral wall of the linkage rod (2) is provided with a first thread (21); the linkage rod (2) is provided with three limiting members (22); the limiting members (22) are movably engaged with the outer peripheral wall of the linkage rod (2) through the first thread (21) and can move axially; the rear end of the linkage rod (2) is fixedly provided with an end limiting member (23); the first connecting part (32) has a first through hole (321); the linkage rod (2) passes through two first through holes (321) at the same time to connect with two heat insulation members (3) at the same time; one limiting member (22) is used to cooperate with the end limiting member (23) to clamp one of the heat insulation plates (31), and the other two limiting members (22) are used to cooperate to clamp and fix the other heat insulation plate (31), so that the position between the two heat insulation plates (31) and the linkage rod (2) is fixed.
4. The commercial gas stove fire observation device according to claim 2, characterized in that: Positioning rings (4) are provided at the rear end of the first cylindrical section (11), at both ends of the second cylindrical section (12), and at the front end of the third cylindrical section (13); the positioning rings (4) are provided with connecting lugs (41); the second connecting parts (33) of the two heat insulation components (3) are respectively hinged to the connecting lugs (41) between the first cylindrical section (11) and the second cylindrical section (12) and the connecting lugs (41) between the second cylindrical section (12) and the third cylindrical section (13).
5. The commercial gas stove fire observation device according to claim 4, characterized in that: The inner diameter of the positioning ring (4) is the same as the inner diameter of the cylinder (1), and the outer diameter of the positioning ring (4) is greater than the outer diameter of the cylinder (1); the diameter of the heat insulation plate (31) is the same as the outer diameter of the positioning ring (4).
6. The commercial gas stove fire observation device according to claim 1, characterized in that: The linkage rod (2) is also provided with a handle (24) at one end near the first cylindrical section (11).
7. The commercial gas stove fire observation device according to claim 1, characterized in that: It also includes an anti-slip sleeve (5); the anti-slip sleeve (5) is tightly fitted onto the outer peripheral wall of the first cylindrical section (11).
8. The commercial gas stove fire observation device according to claim 3, characterized in that: The end limiting member (23) is detachably connected to the rear end of the linkage rod (2).