Smoke exhaust structure for gas steam box

By designing an external filter box and filter plate exhaust structure, the problems of flue gas pollution and complex maintenance in the exhaust structure of the gas-fired steam oven were solved, realizing flue gas filtration and convenient replacement of filter plates, reducing environmental pollution and maintenance costs.

CN224151002UActive Publication Date: 2026-04-21BEIJING JIAXINKANGLE KITCHEN UTENSIL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING JIAXINKANGLE KITCHEN UTENSIL CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing exhaust structure of gas-fired steam ovens lacks effective filtration measures, resulting in the direct emission of harmful substances, polluting the environment and affecting air quality and health. At the same time, maintenance or replacement is complicated, time-consuming, and costly.

Method used

A smoke exhaust structure including an external mechanism, a filter assembly, a positioning assembly, and a disassembly assembly is designed. The smoke is filtered through an external filter box and filter plate, and the filter plates can be easily disassembled and replaced independently through bolts and levers.

Benefits of technology

It effectively filters harmful substances in flue gas, reduces environmental pollution, simplifies the maintenance process, facilitates flexible replacement and repair of filter plates, and improves ease of use and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224151002U_ABST
    Figure CN224151002U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of gas steam boxes, and discloses a smoke exhaust structure for a gas steam box, which comprises a gas steam box main body, the top of the gas steam box main body is fixedly connected with a smoke exhaust pipe, the left side of the smoke exhaust pipe is provided with an external hanging mechanism, the top of the external hanging mechanism is internally provided with a fixing mechanism, and the fixing mechanism is fixedly connected with the smoke exhaust pipe. The external hanging mechanism comprises an external hanging assembly, a connecting assembly and a mounting assembly. According to the smoke exhaust structure for the gas steam box, the externally-hung mechanism and the externally-hung filter box are arranged on the left side of the smoke exhaust pipe, smoke exhausted through the smoke exhaust pipe is filtered through a plurality of filter plates, the influence of exhausted smoke on the environment when the smoke exhaust structure is used is reduced, meanwhile, a worker only needs to rotate bolts on the front side and the rear side to disassemble and assemble the smoke exhaust structure, and operation is convenient. Therefore, the external hanging filter box can be fixed and disassembled, workers can disassemble and assemble the whole structure of the external hanging filter box conveniently, and the gas steam box body and the external hanging filter box can be replaced with each other.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of gas-fired steam oven technology, specifically to a smoke exhaust structure for a gas-fired steam oven. Background Technology

[0002] A gas-fired steam oven is a cooking appliance that uses gas to provide heat. It mainly consists of a casing, a burner, and a water tank. During operation, the gas burns in the burner to generate heat, which heats the water in the tank into steam. The steam circulates to cook the food. They are available in commercial and residential models; commercial models have larger capacities and higher power, while residential models are more compact. Gas-fired steam ovens heat food quickly and distribute steam evenly, resulting in better taste. They also have relatively low operating costs and are commonly found in restaurants and home kitchens.

[0003] In practical applications, the exhaust systems of existing gas-fired steam ovens lack effective filtration measures. The flue gas produced by gas combustion contains a large number of harmful substances, such as carbon monoxide, nitrogen oxides, and particulate matter. These substances, when released directly into the atmosphere without adequate filtration, cause serious environmental pollution, harming air quality and human health. For example, in some catering establishments, due to the rudimentary exhaust systems of gas-fired steam ovens, the surrounding air is often filled with a pungent odor, negatively impacting the lives of nearby residents and the environment. Furthermore, since the exhaust system is integrated with the main body of the steam oven, any malfunction may require the entire oven to be shut down for complex repairs or replacement, consuming significant time and costs.

[0004] Based on the defects and shortcomings of the existing exhaust structure of gas-fired steam ovens, in order to reduce the environmental pollution caused by exhaust from gas-fired steam ovens, improve the ease of installation and maintenance of the exhaust structure, and enable flexible replacement of filter components, it is urgent to design a brand-new exhaust structure for gas-fired steam ovens. Utility Model Content

[0005] The purpose of this invention is to provide a smoke exhaust structure for a gas-fired steam oven to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a smoke exhaust structure for a gas-fired steam oven, comprising a gas-fired steam oven body, a smoke exhaust pipe fixedly connected to the top of the gas-fired steam oven body, an external hanging mechanism provided on the left side of the smoke exhaust pipe, and a fixing mechanism provided inside the top of the external hanging mechanism.

[0007] The external attachment mechanism includes an external attachment component, a connecting component, and an installation component. The external attachment component is located on the left side of the exhaust pipe, the connecting component is located on the right side of the external attachment component, and the installation component is located on the front and rear sides of the external attachment component.

[0008] The fixing mechanism includes a filter component, a positioning component, and a disassembly component. The filter component is located inside the top of the external component, the positioning component is located on the front and rear sides of the external component, and the disassembly component is located inside the outside of the positioning component.

[0009] Preferably, the external component includes an external filter box, which is located on the left side of the exhaust pipe. The left side of the external filter box is fixedly connected to an outlet pipe, and a frame is fitted around the outer ring of the external filter box. The frame is fixedly connected to the top of the gas-fired steam oven body.

[0010] Preferably, the connecting assembly includes a connecting pipe, which is fixedly connected to the right side of the external filter box. A retaining tube is snapped into the inner ring of the connecting pipe, which is fixedly connected to the left side of the exhaust pipe. A retaining ring is snapped into the inner ring of the retaining tube, and the retaining ring is fixedly connected to the right side of the external filter box.

[0011] Preferably, the installation assembly includes a fixing screw cylinder, which is fixedly connected to the front and rear sides of the frame. A reinforcing fin is fixedly connected to the bottom of the fixing screw cylinder, and a bolt is threaded onto the inner ring of the fixing screw cylinder. The bolt is snapped onto the front and rear sides of the external filter box.

[0012] Preferably, the filter assembly includes a panel that is snapped onto the top of the external filter box. A handle is fixedly connected to the top of the panel, and a frame is fixedly connected to the bottom of the panel. The frame is snapped into the top of the external filter box, and a filter plate is fixedly connected inside the frame. Clips are snapped onto the front and rear sides of the frame, and the clips are fixedly connected to the front and rear sides inside the external filter box.

[0013] Preferably, the positioning component includes a fixed box, which is fixedly connected to the front and rear sides of the external filter box at the corresponding position of the card frame. A second reinforcing fin is fixedly connected to the bottom of the fixed box, and the second reinforcing fin is fixedly connected to the front and rear sides of the external filter box. A sliding plate is slidably connected inside the fixed box. A compression spring is fixedly connected to the outer side of the sliding plate, and a locking block is fixedly connected to the inner side of the sliding plate. The locking block passes through the external filter box and engages with the front and rear sides of the card frame.

[0014] Preferably, the disassembly assembly includes a telescopic slide rod, which is fixedly connected to the outside of the slide plate and slidably connected to the inside of the fixed box. A lever is fixedly connected to the outside of the telescopic slide rod.

[0015] Compared with the prior art, the present invention provides a smoke exhaust structure for a gas-fired steam oven, which has the following beneficial effects:

[0016] 1. The exhaust structure for this gas-fired steam oven features an external filter box mounted on the left side of the exhaust pipe. Multiple filter plates filter the exhaust gas, reducing the environmental impact of emissions. The filter box can be easily installed and removed by simply rotating the bolts on the front and back sides, facilitating easy assembly and disassembly of the entire structure. This allows for interchangeability between the steam oven body and the filter box, enabling replacement in case of malfunction or unavailability. The system is simple and user-friendly.

[0017] 2. The exhaust structure for this gas-fired steam oven, through a fixed mechanism, allows multiple filter plates to be installed in an external filter box to filter the exhaust gas from the exhaust pipe, ensuring the safety of the final exhaust gas. Furthermore, operators only need to pull the levers on both sides outwards to release the locking blocks on both sides from their positioning, allowing for independent replacement of individual filter plates. When multiple filter plates are in different conditions, the heavily contaminated filter plate on the right can be replaced directly without replacing the filter plate on the left with no obvious signs of use. This design is more flexible, simple to operate, and convenient for operators. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a partial structural separation diagram of the present invention;

[0021] Figure 3 Sectional view of the component installation section;

[0022] Figure 4 This is a partial sectional view of the structure of this utility model;

[0023] Figure 5 This is a sectional view of the fixed mechanism.

[0024] In the diagram: 1. External mounting mechanism; 11. External mounting component; 1101. External filter box; 1102. Exhaust pipe; 1103. Frame; 12. Connecting component; 1201. Connecting pipe; 1202. Pipe clamp; 1203. Clamping ring; 13. Mounting component; 1301. Fixing screw; 1302. Reinforcing fin one; 1303. Bolt; 2. Fixing mechanism; 21. Filter assembly; 2101. Panel; 2102. Handle; 2103. Frame clamp; 2104. Filter plate; 2105. Clamping strip; 22. Positioning component; 2201. Fixing box; 2202. Reinforcing fin two; 2203. Sliding plate; 2204. Compression spring; 2205. Clamping block; 23. Disassembly component; 2301. Telescopic sliding rod; 2302. Lever; 3. Gas steam oven body; 31. Exhaust pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] This utility model provides a technical solution:

[0028] Example 1

[0029] Combination Figures 1 to 5 The exhaust structure for the gas-fired steam oven includes a gas-fired steam oven body 3, an exhaust pipe 31 fixedly connected to the top of the gas-fired steam oven body 3, an external hanging mechanism 1 on the left side of the exhaust pipe 31, and a fixing mechanism 2 inside the top of the external hanging mechanism 1.

[0030] The external mounting mechanism 1 includes an external mounting component 11, a connecting component 12, and an installation component 13. The external mounting component 11 is located on the left side of the exhaust pipe 31, the connecting component 12 is located on the right side of the external mounting component 11, and the installation component 13 is located on the front and rear sides of the external mounting component 11.

[0031] External assembly 11 includes an external filter box 1101, which is located on the left side of the exhaust pipe 31. An exhaust pipe 1102 is fixedly connected to the left side of the external filter box 1101. A frame 1103 is fitted around the outer ring of the external filter box 1101 and is fixedly connected to the top of the gas-fired steam oven body 3. Connection assembly 12 includes a connecting pipe 1201, which is fixedly connected to the right side of the external filter box 1101. A retaining pipe 1202 is snapped into the inner ring of the connecting pipe 1201. 2 is fixedly connected to the left side of the exhaust pipe 31. The inner ring of the clamping pipe 1202 is clamped with a retaining ring 1203. The retaining ring 1203 is fixedly connected to the right side of the external filter box 1101. The mounting component 13 includes a fixing screw 1301. The fixing screw 1301 is fixedly connected to the front and rear sides of the frame 1103. The bottom of the fixing screw 1301 is fixedly connected with a reinforcing fin 1302. The inner ring of the fixing screw 1301 is threaded with a bolt 1303. The bolt 1303 is clamped to the front and rear sides of the external filter box 1101.

[0032] Furthermore, the external filter box 1101 is located on the left side of the exhaust pipe 31. Through multiple filter plates 2104, it filters the flue gas discharged through the exhaust pipe 31, reducing the environmental impact of the flue gas emitted during the use of the device. At the same time, the operator only needs to rotate the bolts 1303 on the front and rear sides to fix and disassemble the external filter box 1101, which is convenient for the operator to disassemble and assemble the overall structure of the external filter box 1101. This allows the gas steam oven body 3 and the external filter box 1101 to be interchanged. If one of them malfunctions or cannot be used, it can be replaced at any time according to the usage. The operation is simple and convenient for the operator to use.

[0033] Example 2

[0034] See Figure 1 , Figure 2 , Figure 4 and Figure 5 Furthermore, based on Embodiment 1, the fixing mechanism 2 includes a filter assembly 21, a positioning assembly 22, and a disassembly assembly 23. The filter assembly 21 is disposed inside the top of the external attachment assembly 11, the positioning assembly 22 is disposed on the front and rear sides of the external attachment assembly 11, and the disassembly assembly 23 is disposed inside the outside of the positioning assembly 22.

[0035] The filter assembly 21 includes a panel 2101, which is snapped onto the top of the external filter box 1101. A handle 2102 is fixedly connected to the top of the panel 2101, and a frame 2103 is fixedly connected to the bottom of the panel 2101. The frame 2103 is snapped into the top of the external filter box 1101, and a filter plate 2104 is fixedly connected inside the frame 2103. Clips 2105 are snapped onto the front and rear sides of the frame 2103, and the clips 2105 are fixedly connected to the front and rear sides of the external filter box 1101. The positioning assembly 22 includes a fixing box 2201, which is fixedly connected to the front and rear sides of the external filter box 1101 at positions corresponding to the frame 2103. The bottom of the fixing box 2201... A reinforcing fin 2202 is fixedly connected to the front and rear sides of the external filter box 1101. A sliding plate 2203 is slidably connected inside the fixed box 2201. A compression spring 2204 is fixedly connected to the outside of the sliding plate 2203. A locking block 2205 is fixedly connected to the inside of the sliding plate 2203. The locking block 2205 passes through the external filter box 1101 and is locked inside the front and rear sides of the frame 2103. The disassembly assembly 23 includes a telescopic sliding rod 2301. The telescopic sliding rod 2301 is fixedly connected to the outside of the sliding plate 2203 and slidably connected to the inside of the outside of the fixed box 2201. A lever 2302 is fixedly connected to the outside of the telescopic sliding rod 2301.

[0036] Furthermore, multiple filter plates 2104 are installed inside the external filter box 1101 to filter the flue gas discharged from the exhaust pipe 31, ensuring the safety of the final discharged flue gas. Moreover, the operator only needs to pull the levers 2302 on the front and rear sides outward to release the locking blocks 2205 on the front and rear sides from the positioning of the locking frame 2103, so that the operator can replace the individual filter plates 2104 independently. When the multiple filter plates 2104 are in different situations, the heavily polluted filter plate 2104 on the right side can be replaced directly without replacing the filter plate 2104 on the left side that has no obvious signs of use. This is more flexible, simple to operate and easy for operators to use.

[0037] In actual operation, when this device is used, the flue gas is discharged through the exhaust pipe 31, enters the external filter box 1101 through the clamp pipe 1202 and the connecting pipe 1201, and the flue gas entering the external filter box 1101 is filtered by multiple filter plates 2104 from right to left, and finally discharged through the exhaust pipe 1102. At this time, the external side filters the flue gas.

[0038] When it is necessary to install the external filter box 1101, the staff first places the external filter box 1101 on the top left side of the main body 3 of the gas steam oven, so that the external filter box 1101 is snapped into the frame 1103. Then, the external filter box 1101 is moved to the right. The external filter box 1101 moves to the right, which drives the connecting pipe 1201 and the retaining ring 1203 to move to the right. The connecting pipe 1201 and the retaining ring 1203 move to the right and respectively snap into the outer and inner rings of the retaining pipe 1202. At this time, the connection between the external filter box 1101 and the flue pipe 31 is completed. Then, the staff rotates the bolt 1303 to install it into the inner ring of the fixing screw cylinder 1301. The bolt 1303 rotates inward in the inner ring of the fixing screw cylinder 1301. The bolt 1303 moves inward through the frame 1103 and snaps into the front and rear sides of the external filter box 1101 until the bolt 1303 can no longer be rotated. At this time, the installation and fixing of the external filter box 1101 is completed.

[0039] When it is necessary to disassemble the filter plate 2104, the operator first pulls the levers 2302 on both the front and rear sides outward. The outward movement of the levers 2302 drives the sliding plate 2203 outward through the telescopic slide rod 2301. The outward movement of the sliding plate 2203 drives the locking block 2205 outward. The locking block 2205 moves outward and retracts into the fixed box 2201 to release the positioning of the locking frame 2103. Then the operator can pull the handle 2102 upward to drive the locking frame 2103 upward, thus completing the disassembly of the filter plate 2104.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A smoke exhaust structure for a gas-fired steam oven, comprising a main body (3) of the gas-fired steam oven, characterized in that: The gas-fired steam oven body (3) is fixedly connected to the top of the exhaust pipe (31), and an external hanging mechanism (1) is provided on the left side of the exhaust pipe (31). A fixing mechanism (2) is provided inside the top of the external hanging mechanism (1). The external attachment mechanism (1) includes an external attachment component (11), a connecting component (12) and an installation component (13). The external attachment component (11) is located on the left side of the exhaust pipe (31), the connecting component (12) is located on the right side of the external attachment component (11), and the installation component (13) is located on the front and rear sides of the external attachment component (11). The fixing mechanism (2) includes a filter assembly (21), a positioning assembly (22) and a disassembly assembly (23). The filter assembly (21) is located inside the top of the external assembly (11), the positioning assembly (22) is located on the front and rear sides of the external assembly (11), and the disassembly assembly (23) is located inside the outside of the positioning assembly (22).

2. The smoke discharging structure for a gas steaming oven according to claim 1, wherein: The external component (11) includes an external filter box (1101), which is located on the left side of the exhaust pipe (31). An exhaust pipe (1102) is fixedly connected to the left side of the external filter box (1101). A frame (1103) is fitted around the outer ring of the external filter box (1101), and the frame (1103) is fixedly connected to the top of the gas steam oven body (3).

3. The smoke discharging structure for a gas steaming oven according to claim 1, wherein: The connecting assembly (12) includes a connecting pipe (1201), which is fixedly connected to the right side of the external filter box (1101). The inner ring of the connecting pipe (1201) is fitted with a clamping pipe (1202), which is fixedly connected to the left side of the exhaust pipe (31). The inner ring of the clamping pipe (1202) is fitted with a retaining ring (1203), which is fixedly connected to the right side of the external filter box (1101).

4. The smoke discharging structure for a gas steaming oven according to claim 1, wherein: The installation assembly (13) includes a fixing screw cylinder (1301), which is fixedly connected to the front and rear sides of the frame (1103). A reinforcing fin (1302) is fixedly connected to the bottom of the fixing screw cylinder (1301). A bolt (1303) is threadedly connected to the inner ring of the fixing screw cylinder (1301), and the bolt (1303) is snapped into the front and rear sides of the external filter box (1101).

5. The structure for discharging fumes of a gas oven according to claim 1, wherein: The filter assembly (21) includes a panel (2101) that is snapped onto the top of the external filter box (1101). A handle (2102) is fixedly connected to the top of the panel (2101). A frame (2103) is fixedly connected to the bottom of the panel (2101). The frame (2103) is snapped into the top of the external filter box (1101). A filter plate (2104) is fixedly connected inside the frame (2103). Clips (2105) are snapped onto the front and rear sides of the frame (2103). The clips (2105) are fixedly connected to the front and rear sides inside the external filter box (1101).

6. The structure for discharging fumes of a gas oven according to claim 1, wherein: The positioning component (22) includes a fixed box (2201), which is fixedly connected to the front and rear sides of the external filter box (1101) at the position corresponding to the card frame (2103). A reinforcing fin (2202) is fixedly connected to the bottom of the fixed box (2201). The reinforcing fin (2202) is fixedly connected to the front and rear sides of the external filter box (1101). A sliding plate (2203) is slidably connected inside the fixed box (2201). A compression spring (2204) is fixedly connected to the outside of the sliding plate (2203). A locking block (2205) is fixedly connected to the inside of the sliding plate (2203). The locking block (2205) passes through the external filter box (1101) and is locked inside the front and rear sides of the card frame (2103).

7. The structure for discharging fumes of a gas oven according to claim 1, wherein: The disassembly assembly (23) includes a telescopic slide rod (2301), which is fixedly connected to the outside of the slide plate (2203). The telescopic slide rod (2301) is slidably connected to the inside of the outside of the fixed box (2201). A lever (2302) is fixedly connected to the outside of the telescopic slide rod (2301).