Cooking fume exhaust pipe joint for integrated cooker
The design of the inverted T-shaped flue and the detachable cover solves the problems of oil leakage from the integrated stove's exhaust pipe connector and inconvenient exhaust direction, achieving efficient exhaust and convenient direction adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MEIDA IND CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-07
AI Technical Summary
The existing design of the integrated stove's range hood connector makes it easy for oil stains to leak out, resulting in poor smoke extraction and inconvenience in changing the direction of smoke extraction.
It adopts an inverted T-shaped flue design, with both side interfaces that can be connected to the exhaust pipe. It is equipped with a detachable cover and guide block, combined with the oil outlet valve design, to achieve effective guidance and collection of oil fumes.
It improves the efficiency of fume extraction, makes it easier to change the direction of fume extraction, prevents oil leakage, reduces noise, and enhances installation stability.
Smart Images

Figure CN224469915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated stoves, and in particular to a connecting head for the exhaust pipe in an integrated stove. Background Technology
[0002] Existing integrated cooktop fume duct connectors, such as those used in our JJZT-901S integrated cooktop, which includes a cooktop, a smoke chamber, and a smoke collection chamber, with the cooktop housing the appliances and the smoke collection chamber connected to the bottom of the smoke chamber, use an L-shaped connector. One end inserts into the bottom of the smoke collection chamber, and the other end connects to the exhaust pipe, secured with a clamp. During use, cooking fumes impact the bottom of the L-shaped pipe, forming grease that easily leaks through the gap between the connector and the exhaust pipe, hindering collection. Furthermore, the L-shaped pipe can only connect to the exhaust pipe on either the left or right side, limiting exhaust volume and resulting in poor smoke extraction. Changing the exhaust direction later requires disassembling and reassembling the L-shaped pipe, making it inconvenient to use. Summary of the Invention
[0003] The purpose of this invention is to provide a fume extraction pipe connector for integrated stoves, which can improve the fume extraction effect; facilitate the later change of the fume extraction direction; and facilitate the collection of oil stains to prevent oil leakage.
[0004] To achieve this objective, the present invention adopts the following technical solution: a fume duct connector for an integrated stove, comprising a connector body, wherein an inverted T-shaped flue is formed within the connector body, and an upper interface for connecting to the smoke collection chamber is formed at the top of the connector body. Side interfaces for connecting to the fume duct are provided on both the left and right sides of the connector body. It also includes a detachable cover for connecting one of the side interfaces. The cover is located within the flue and connects to a guide block on one side. The other side of the guide block forms a guide surface for directing fumes to the other side interface. The guide surface is curved downwards into an arc shape, with the arc-shaped surface near the lower part of the upper interface. The bottom of the connector body is recessed to form an oil receiving groove, and an oil drain hole is provided at the oil receiving groove, with an oil outlet valve connected to the oil drain hole. This product features an inverted T-shaped flue design. Both sides of the main connector body have side interfaces for connecting to exhaust pipes. To increase exhaust volume, both side interfaces can be connected to exhaust pipes, thus improving fume extraction efficiency. Furthermore, when using only one exhaust pipe, changing the exhaust direction later is simple: just remove the cover and swap the side interface connecting the cover and the exhaust pipe; the entire connector body doesn't need to be removed, making operation convenient and allowing for easy changes in exhaust direction. The guide block blocks the flow of fumes towards the cover, and the guide surface directs fumes towards the exhaust pipe for better fume extraction and reduces noise from fumes impacting the cover. Additionally, the oil outlet valve connects to the oil drain pipe. When fumes impact the bottom of the connector body, they are absorbed into the oil tank and discharged through the oil outlet valve, preventing oil from leaking out from the gap between the fume pipe connector and the exhaust pipe.
[0005] Furthermore, the upper interface forms a rectangular socket, into which the bottom of the smoke collection chamber is inserted. This facilitates easy insertion.
[0006] Furthermore, the exhaust pipe has an annular ring at its air inlet, and the annular ring has several slots distributed around its circumference; the side interface has a plug ring that can be inserted into the annular ring; and the plug ring has a plug that can engage with the slots around its periphery.
[0007] Furthermore, the annular ring has an L-shaped cross-section; the slot includes mounting openings and mating blocks distributed along the circumference of the annular ring; the mating block is located on the side of the mounting opening near the edge of the annular ring; the mating block has a recess on the side near the mounting opening; the insert includes inserts and protrusions of the same number and position as the mounting openings, with the protrusion located on the side of the insert near the edge of the insert ring; the insert ring abuts against the bottom of the annular ring; rotating the exhaust pipe causes the insert to be inserted between the mating block and the bottom of the annular ring, with the protrusion engaging the recess. This design ensures secure installation and convenient disassembly.
[0008] The beneficial effects of this utility model are as follows: This product is designed with an inverted T-shaped flue, and both side interfaces can be connected to the exhaust pipe, thereby improving the exhaust effect; moreover, it is possible to choose to connect to any one side interface as needed, and use the cover to close the other side interface, thus facilitating the change of exhaust direction later; the oil tank facilitates the collection of oil and discharges it through the oil drain connector, preventing oil leakage; the guide block and guide surface can guide the oil fumes flowing towards the cover to the exhaust, improving the exhaust effect. Attached Figure Description
[0009] Figure 1 This is a diagram showing the usage state of this utility model.
[0010] Figure 2 This is a schematic diagram of the modular design of this utility model;
[0011] Figure 3 for Figure 2 Enlarged view of part A in the image;
[0012] Figure 4 This utility model is three-dimensional. Figure 1 ;
[0013] Figure 5 This is a cross-sectional view of the present utility model. Figure 1 ;
[0014] Figure 6 This utility model is three-dimensional. Figure 2 ;
[0015] Figure 7 This is a cross-sectional view of the present utility model. Figure 2 ;
[0016] Figure 8 This is the left view of the present invention;
[0017] Figure 9 This is a top view of the present invention;
[0018] Figure 10 This is a bottom view of the present invention;
[0019] Figure 11 This is a right view of the present invention;
[0020] Among them, the exhaust pipe is 100; the integrated stove is 200; the connector body is 1, the upper interface is 11, the side interface is 12, the oil trough is 13, the oil outlet valve is 14, and the flue is 15; the ring is 2, the slot is 21, the installation port is 211, the recess is 212, and the mating block is 213; the insertion ring is 3, the plug is 31, the insertion block is 311, and the protrusion is 312; the cover is 4; the guide block is 5, and the guide surface is 51. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the invention and not all structures. In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" 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 elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.
[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0023] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.
[0024] like Figure 1 As shown, this product is a connector for the exhaust pipe inside an integrated stove. This product is installed inside the integrated stove 200, which includes a cooktop, a smoke chamber, and an exhaust pipe. The cooktop has cookware, and the smoke chamber is connected to the bottom of the smoke chamber. Integrated stoves are existing products and are not within the scope of this patent. This product connects the smoke chamber and the exhaust pipe. A fan is installed inside the smoke chamber. During use, fumes are drawn into the smoke chamber from the smoke chamber, then pass through the smoke chamber connector, and are discharged through the exhaust pipe.
[0025] like Figures 2-11 A range hood connector for use in an integrated stove includes a connector body 1, in which an inverted T-shaped flue 15 is formed. An upper interface 11 is formed at the top of the connector body 1, and the upper interface 11 is connected to the smoke collection chamber. Specifically, the upper interface 11 is inserted into the smoke collection chamber, and the upper interface 11 forms a rectangular socket. The bottom of the smoke collection chamber is inserted into the rectangular socket.
[0026] Specifically, the connector body 1 has a side interface 12 on each of its left and right sides. The side interface 12 can be connected to the exhaust pipe 100, which is an existing retractable flexible hose. Specifically, the exhaust pipe 100 has an annular ring 2 at its air inlet, and the annular ring 2 has several slots 21 distributed around its circumference. The side interface 12 has a plug ring 3 that can be inserted into the annular ring 2. The plug ring 3 has a plug plug 31 around its periphery that can engage with the slots 21.
[0027] To further ensure the stability of the installation and facilitate disassembly, the annular ring 2 has an L-shaped cross-section. The slot 21 includes four mounting ports 211 and four mating blocks 213. The mounting ports 211 are evenly distributed around the circumference of the annular ring 2, and each mating block 213 is located on the side of a mounting port 21 near the edge of the annular ring 2. Furthermore, each mating block 213 has a recess 212 on the side near the mounting port 211, and this recess is also arc-shaped. There are four inserts 31, and one of the inserts can be designed to include a plug 311 and a protrusion 312. The number of plugs 311 is the same as the number of mounting ports 211, and their positions correspond. Each protrusion 312 is located on the side of a plug 311 near the edge of the insert ring 3. In use, the insert ring 3 rests against the bottom of the inner ring 2, and then the insert ring 3 is rotated. When the insert block 311 is inserted between the mating block 213 and the bottom of the inner ring 2, the protrusion 312 just engages with the recess 212. The protrusion 312 is preferably designed as a cylindrical structure, and the insert block 311 is L-shaped. The top and bottom of the L-shaped insert block 311 are located at the mounting opening 211. The horizontal portion of the L-shaped insert block 311 is close to the surface of the mating block with the recess 212. The horizontal portion of the L-shaped insert block 311 forms a notch at the protrusion 312. Part of the protrusion 312 is located within the notch, and the other part is engaged with the recess 212. All inserts can be designed with the above structure, or only two or three can have the above structure, while the rest can be designed as rectangular blocks.
[0028] In addition, this product also includes a cover 4, which is detachably connected to any one of the side interfaces 12. This detachable connection method is the same as that between the side interface 12 and the exhaust pipe 100, thus facilitating interchangeability. To further improve the performance, the surface of the cover 4 outside the flue 15 is the front, and the surface of the cover 4 inside the flue 15 is the rear. A handle is provided on the front of the cover 15, which is formed by the indentations on both sides of the front of the cover 15. Figure 2 As shown, it is easy to grip, but other existing handle structures can also be used, as long as it is easy to grip. The cover 4 is connected to the guide block 5. The outer wall of the guide block 5 fits against the inner wall of the side interface 12, that is, both the side interface 12 and the guide block 5 are circular. A guide surface 51 is formed behind the guide block 5. The guide surface 51 is an arc-shaped slope, that is, the guide surface 51 is inclined and curved from top to bottom into an arc shape. The guide surface 51 guides the oil fumes to the other side interface 12. The arc-shaped surface 51 is close to the lower part of the upper interface 11.
[0029] Preferably, the inner bottom of the connector body 1 is recessed to form an oil receiving groove 13. The oil receiving groove is arc-shaped and an oil drain hole is provided at the oil receiving groove 13. An oil outlet valve 14 is connected to the oil drain hole. The oil outlet valve 14 can be connected to one end of the oil drain pipe. The oil outlet valve 14 and the oil drain pipe are conventional parts. The other end of the oil drain pipe can be inserted into an oil box or other oil receiving structure, so that the oil outlet valve 14 can be easily controlled to close during later maintenance to prevent oil leakage.
[0030] Take the exhaust pipe connected on the left as an example.
[0031] During installation, insert the upper interface 11 of the connector body 1 to the bottom of the smoke collection chamber, then insert the exhaust pipe 100 to the side interface 12 on the left end of the connector body 1. Fit the annular ring 2 of the exhaust pipe 100 onto the insertion ring 3, pressing the insertion ring 3 tightly against the bottom of the annular ring 2. Then rotate the exhaust pipe 100 so that the insert 31 is positioned at the installation port 211, with the protrusion 312 engaging the recess 212, thus completing the fixation. Similarly, install the cover 4 to the side interface on the right end of the connector body 1, then connect the oil outlet valve 14 to one end of the exhaust pipe, and insert the other end of the exhaust pipe into the oil box to complete the installation.
[0032] When in use, the fan is turned on, and the fumes enter the fume collection chamber from the fume chamber, then impact the oil tank 13 downwards. The oil is absorbed in the oil tank 13 and then discharged into the oil box along the oil drain pipe. Because the cover 4 blocks the side interface 12 on the left side of the connector body 1, the fumes can only be discharged outdoors from the exhaust pipe 100 on the right side of the connector body 1. During this process, the fumes rushing towards the cover 4 are guided by the guide surface, the arc design buffers the fumes, and they are tilted and guided to be discharged into the exhaust pipe on the left side.
[0033] When adjusting to right-side exhaust, simply rotate the exhaust pipe 100 forcefully, disengaging the protrusion 312 from the recess 212, and the insertion ring 3 from the annular ring 2. Remove the cap 4 in the same manner. Install the exhaust pipe onto the side interface 12 on the right side of the connector body 1 in the above manner, and install the cap 4 onto the side interface 12 on the left side of the connector body 1. This completes the installation for adjusting the exhaust direction. The cap blocks the side interface 12 on the left side of the connector body 1, allowing fumes to exit only from the exhaust pipe 100 on the right side of the connector body 1. During this process, the fumes rushing towards the cap 4 are guided by the guide surface, the arc-shaped design buffers the fumes, and they are tilted and guided towards the right-side exhaust pipe for discharge.
[0034] When it is necessary to increase the smoke exhaust efficiency, the cover 4 can be removed, and then the exhaust pipe 100 can be installed on the side interfaces 12 on the left and right sides of the connector body 1, so as to realize bidirectional smoke exhaust and greatly improve the smoke exhaust efficiency.
[0035] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A connecting head for an exhaust pipe in an integrated stove, comprising a connector body (1), characterized in that: The connector body (1) forms an inverted T-shaped flue (15) inside. The top of the connector body (1) forms an upper interface (11) that connects to the smoke collection chamber. The left and right sides of the connector body (1) are provided with side interfaces (12) that can connect to the oil exhaust pipe (100). It also includes a cover (4) that can be detachably connected to one of the side interfaces. The cover (4) is located inside the flue (15) and connects to the guide block (5). The other side of the guide block (5) forms a guide surface (51) that guides the oil fumes to the other side interface (12). The guide surface (51) is curved from top to bottom and is close to the lower part of the upper interface (11). The bottom of the connector body (1) is recessed to form an oil receiving groove (13). An oil drain hole is provided at the oil receiving groove (13), and an oil outlet valve (14) is connected at the oil drain hole.
2. The exhaust pipe connector for an integrated stove according to claim 1, characterized in that: The upper interface (11) forms a rectangular socket, and the bottom of the smoke collection chamber is inserted into the rectangular socket.
3. The exhaust pipe connector for an integrated stove according to claim 1, characterized in that: The exhaust pipe (100) has an annular ring (2) at the air inlet, and the annular ring (2) has several slots (21) distributed around its circumference; the side interface (12) has a plug ring (3) that can be inserted into the annular ring (2); the plug ring (3) has a plug plug (31) that can be engaged with the slot (21) around its periphery.
4. The exhaust pipe connector for an integrated stove according to claim 3, characterized in that: The annular ring (2) has an L-shaped cross-section; the slot (21) includes an installation port (211) and a mating block (213) distributed circumferentially along the annular ring (2); the mating block (213) is located on the side of the installation port (211) near the edge of the annular ring (2); the mating block (213) is provided with a recess (212) on the side of the side of the installation port (211) near the installation port (211); the plug (31) includes a plug (311) and a protrusion (312) that are the same number and position as the installation port (211), the protrusion (312) is located on the side of the plug (311) near the edge of the insert ring (3); the insert ring (3) abuts against the bottom of the annular ring (2); the exhaust pipe (100) is rotated so that the plug (311) is inserted between the mating block (213) and the bottom of the annular ring (2), and the protrusion (312) engages with the recess (212).