Integrated stove quick reversing straight discharge type air duct structure

Abstract

The application discloses a kind of integrated stove quick commutation straight discharge type air duct structure, including mainframe assembly, negative pressure tank assembly, volute type centrifugal fan assembly is arranged in negative pressure tank assembly, negative pressure tank assembly is fixed in mainframe assembly, volute type centrifugal fan assembly is connected with the slot of negative pressure tank assembly, the direction of air outlet of volute type centrifugal fan assembly is horizontal direction, left side or right side of the lower part of negative pressure tank assembly is detachably connected with exhaust pipe assembly, the air outlet of volute type centrifugal fan assembly is communicated with exhaust pipe assembly.The application is realized by the above design, and the oil fume straight discharge function of air outlet quick commutation, make integrated stove exhaust more smooth, noise smaller, and there is no difference in the exhaust performance of left and right two directions.

Description

Technical Field

[0001] This invention relates to the field of integrated stove technology, and in particular to a quick-reversing straight-ventilation air duct structure for integrated stoves. Background Technology

[0002] Integrated cooktops are a crucial component of integrated kitchens. Currently, the air outlets of the volute-type centrifugal fans inside the negative pressure boxes of integrated cooktops on the market are inserted downwards into horizontally placed ducts. This forces the flowing fumes to make a 90-degree turn before being discharged horizontally, creating turbulence and airflow opposition with the duct plug at the other end of the duct. This results in poor smoke extraction and increased noise. Furthermore, while the installation position of the volute-type centrifugal fan remains unchanged when the exhaust outlet direction is changed, the fan's outlet is not centered within the duct, leading to differences in smoke extraction performance between the left and right sides, which can negatively impact the user experience. Therefore, improvements are needed. Summary of the Invention

[0003] This invention addresses the shortcomings of existing integrated stoves, such as poor smoke extraction, high noise levels, and differences in smoke extraction performance between the left and right directions, by providing a new integrated stove with a quick-reversing straight-exhaust duct structure.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0005] An integrated stove with a quick-reversing direct-exhaust duct structure includes a main frame assembly and a negative pressure box assembly. A volute-type centrifugal fan assembly is installed inside the negative pressure box assembly. The negative pressure box assembly is fixed within the main frame assembly, and the volute-type centrifugal fan assembly is slot-connected to the negative pressure box assembly. The air outlet of the volute-type centrifugal fan assembly is horizontal. An exhaust pipe assembly is detachably connected to the lower left or right side of the negative pressure box assembly, and the air outlet of the volute-type centrifugal fan assembly communicates with the exhaust pipe assembly.

[0006] The main frame assembly supports and fixes the negative pressure box assembly. The negative pressure box assembly is used for smoke exhaust via negative pressure. The volute-type centrifugal fan assembly performs the smoke exhaust function and connects to the negative pressure box assembly via a slot, allowing for quick disassembly and relocation of the air outlet direction. The volute-type centrifugal fan assembly has a horizontal air outlet direction, enabling direct exhaust of fumes, avoiding bends and turbulence, resulting in smoother smoke exhaust and lower noise in the integrated stove. It also avoids differences in smoke exhaust performance between the left and right directions, further improving the user experience. The detachable connection of the exhaust pipe assembly facilitates quick reversal with the volute-type centrifugal fan assembly, improving convenience. Through the above design, this invention achieves quick air outlet reversal and direct smoke exhaust, resulting in smoother smoke exhaust, lower noise, and no difference in smoke exhaust performance between the left and right directions in the integrated stove.

[0007] Preferably, in the integrated stove quick-reversing direct exhaust duct structure described above, the volute centrifugal fan assembly includes a volute assembly, a spring locking assembly, and an insert flange. The spring locking assembly is fixed to the volute assembly, and the insert flange is riveted to the air outlet of the volute assembly.

[0008] The volute assembly is used for smoke extraction. The spring-locking assembly enables quick assembly and disassembly of the volute centrifugal fan assembly, improving ease of use. The insert flange ensures airtightness and also facilitates the assembly and disassembly of the volute centrifugal fan assembly.

[0009] Preferably, in the integrated stove quick-reversing straight-ventilation duct structure described above, the volute assembly is provided with a fixed handle and an auxiliary handle, and the spring locking assembly is fixed to the fixed handle by punching and pulling out holes.

[0010] The fixed handle and auxiliary handle further improve the ease of assembly and disassembly of the volute centrifugal fan assembly. The fixed handle also serves to secure the volute assembly via a spring-loaded locking assembly. The spring-loaded locking assembly uses a punched and threaded connection, eliminating the need for screws and reducing material usage.

[0011] As a preferred embodiment, in the aforementioned integrated stove quick-reversing straight-ventilation air duct structure, the negative pressure box assembly is further provided with an air duct base plate, and the air duct base plate is provided with an oil leakage structure, which is an eccentric structure.

[0012] The oil leakage structure is biased towards the front of the integrated stove, which shortens the length of the oil box and reduces product costs.

[0013] Preferably, in the integrated stove quick-reversing straight-vent duct structure described above, an air outlet adapter assembly is provided on the left and right sides of the lower part of the negative pressure box assembly. The outer side of the air outlet adapter assembly is connected to the negative pressure box assembly through a flange, and the inner side of the air outlet adapter assembly is provided with a U-shaped slot, which is adapted to the air outlet of the volute centrifugal fan assembly.

[0014] The outlet adapter assembly facilitates the assembly and disassembly of the volute centrifugal fan assembly, ensuring airtightness and enabling faster reversing speeds. The U-shaped slot adapts to the insert flange, further enhancing convenience.

[0015] As a preferred embodiment, the integrated stove quick-reversing straight-ventilation air duct structure described above has a V-shaped guide structure provided on the U-shaped slot.

[0016] The V-shaped guide structure acts as a guide, making it easier to install the volute centrifugal fan assembly and improving convenience.

[0017] Preferably, in the integrated stove quick-reversing straight-vent duct structure described above, the air outlet adapter assembly away from the air outlet of the volute centrifugal fan assembly is screwed with a locking buckle, the outer side of the air outlet adapter assembly is provided with an end cap assembly, and the inner side of the air outlet adapter assembly is also provided with a baffle plate, which is inserted into the U-shaped slot.

[0018] The locking and spring locking assembly allows for quick assembly and disassembly of the volute centrifugal fan assembly. The end cover assembly and baffle plate provide a sealing function, balancing airtightness and assembly / disassembly efficiency.

[0019] Preferably, in the integrated stove quick-reversing straight-ventilation duct structure described above, the exhaust pipe assembly includes an aluminum foil exhaust pipe and an air outlet seat. The aluminum foil exhaust pipe is a telescopic flexible hose structure. The back of the air outlet seat is inserted into the aluminum foil exhaust pipe. An EVA foam pad is affixed to the inner wall of the aluminum foil exhaust pipe corresponding to the position of the air outlet seat. The aluminum foil exhaust pipe and the air outlet seat are locked together by a clamp.

[0020] The aluminum foil exhaust duct features a flexible, telescopic design, enabling direct-pull installation and easy storage, thus enhancing convenience. EVA foam padding improves airtightness and facilitates secure connection between the aluminum foil exhaust duct and the outlet mount. The aluminum foil exhaust duct and outlet mount are locked together using clamps, improving assembly and disassembly efficiency and ease of use.

[0021] As a preferred embodiment, the integrated stove with a quick-reversing straight-vent structure described above has an oil return structure at the bottom of the air outlet.

[0022] The oil return structure makes oil return from the air outlet easier, eliminating the need for a separate oil catcher and reducing material usage.

[0023] Preferably, in the integrated stove quick-reversing straight-ventilation air duct structure described above, the negative pressure box assembly is made of galvanized sheet metal and a tenon-and-mortise structure.

[0024] The negative pressure box assembly uses galvanized sheet metal and a tenon-and-mortise structure, abandoning the traditional cold-rolled sheet forming, spot welding, and powder coating processes, thus reducing the requirements for design and production, and reducing processing steps and costs. Attached Figure Description

[0025] Figure 1 This is a partial exploded view of the present invention;

[0026] Figure 2 This is an exploded view of the negative pressure box assembly in this invention;

[0027] Figure 3 for Figure 2 Enlarged view of section A;

[0028] Figure 4 for Figure 2Enlarged view of section B;

[0029] Figure 5 This is a schematic diagram of the negative pressure box assembly in this invention;

[0030] Figure 6 This is an exploded view of the volute-type centrifugal fan assembly in this invention;

[0031] Figure 7 This is a partial structural diagram of the present invention;

[0032] Figure 8 This is an exploded view of the exhaust duct assembly in this invention;

[0033] Figure 9 This is a schematic diagram of the exhaust duct assembly in this invention. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-9 The invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the invention:

[0035] Example 1

[0036] An integrated stove with a quick-reversing direct-exhaust duct structure includes a main frame assembly 2 and a negative pressure box assembly 1. A volute-type centrifugal fan assembly 11 is installed inside the negative pressure box assembly 1. The negative pressure box assembly 1 is fixed inside the main frame assembly 2. The volute-type centrifugal fan assembly 11 is slotted into the negative pressure box assembly 1. The air outlet of the volute-type centrifugal fan assembly 11 is horizontal. An exhaust pipe assembly 12 is detachably connected to the lower left or right side of the negative pressure box assembly 1. The air outlet of the volute-type centrifugal fan assembly 11 is connected to the exhaust pipe assembly 12.

[0037] Preferably, the volute centrifugal fan assembly 11 includes a volute assembly 111, a spring locking assembly 112, and an insert flange 113. The spring locking assembly 112 is fixed to the volute assembly 111, and the insert flange 113 is riveted to the air outlet of the volute assembly 111.

[0038] Preferably, the volute assembly 111 is provided with a fixed handle 114 and an auxiliary handle 115, and the spring lock assembly 112 is fixed to the fixed handle 114 by punching and pulling.

[0039] Preferably, the negative pressure box assembly 1 is further provided with a duct bottom plate 14, and the duct bottom plate 14 is provided with an oil leakage structure 141, which is an eccentric structure.

[0040] Preferably, an air outlet adapter assembly 13 is provided on the left and right sides of the lower part of the negative pressure box assembly 1. The outer side of the air outlet adapter assembly 13 is connected to the negative pressure box assembly 1 via a flange. The inner side of the air outlet adapter assembly 13 is provided with a U-shaped slot 131, which is adapted to the air outlet of the volute centrifugal fan assembly 11.

[0041] Preferably, the U-shaped slot 131 is provided with a V-shaped guide structure 132.

[0042] Preferably, a locking buckle 133 is screwed onto the air outlet adapter assembly 13 located away from the air outlet of the volute centrifugal fan assembly 11. An end cap assembly 134 is provided on the outer side of the air outlet adapter assembly 13, and a baffle plate 135 is provided on the inner side of the air outlet adapter assembly 13. The baffle plate 135 is inserted into the U-shaped slot 131.

[0043] Preferably, the exhaust pipe assembly 12 includes an aluminum foil exhaust pipe 121 and an air outlet seat 122. The aluminum foil exhaust pipe 121 is a telescopic flexible hose structure. The back of the air outlet seat 122 is inserted into the aluminum foil exhaust pipe 121. An EVA foam pad is attached to the inner wall of the aluminum foil exhaust pipe 121 at the position corresponding to the air outlet seat 122. The aluminum foil exhaust pipe 121 and the air outlet seat 122 are locked together by a clamp.

[0044] Preferably, the bottom of the air outlet seat 122 is provided with an oil return structure 123.

[0045] Preferably, the negative pressure box assembly 1 is made of galvanized sheet metal and has a tenon-and-mortise structure.

[0046] During installation, align the insert flange 113 with the U-shaped slot 131, and install the volute centrifugal fan assembly 11 into the negative pressure box assembly 1. The spring locking assembly 112 will automatically slide into the locking buckle 133. Next, insert the baffle plate 135 into the U-shaped slot 131 furthest from the outlet of the volute centrifugal fan assembly 11, and install the corresponding end cap assembly 134 onto the outlet adapter assembly 13. Then, fix the outlet seat 122 with screws, insert it into the aluminum foil exhaust pipe 121, and lock it with clamps to complete the assembly of the negative pressure box assembly 1. Finally, install the negative pressure box assembly 1 into the main frame assembly 2 to complete the installation of this invention.

[0047] When reversing, remove the air outlet seat 122, then pull the spring lock assembly 112 and take out the volute centrifugal fan assembly 11 through the fixed handle 114 and auxiliary handle 115. After changing the direction, reinstall it into the negative pressure box assembly 1. Then install the air outlet seat 122 and aluminum foil exhaust pipe 121 in the corresponding air outlet direction, and install the baffle plate 135 and end cover assembly 134 in the direction away from the air outlet to complete the quick reversal.

[0048] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be included within the scope of the present invention.

Claims

1. An integrated stove quick-reversing straight-draft air duct structure, comprising a main machine frame assembly (2) and a negative pressure box assembly (1), wherein a volute centrifugal fan assembly (11) is arranged in the negative pressure box assembly (1), characterized in that: The negative pressure box assembly (1) is fixed in the mainframe assembly (2), the volute centrifugal fan assembly (11) is connected with the negative pressure box assembly (1) in a slot mode, the air outlet of the volute centrifugal fan assembly (11) is in a horizontal direction, the left or right side of the lower part of the negative pressure box assembly (1) is detachably connected with an exhaust pipe assembly (12), the air outlet of the volute centrifugal fan assembly (11) is communicated with the exhaust pipe assembly (12), the left and right sides of the lower part of the negative pressure box assembly (1) are both provided with an air outlet adapter assembly (13), the outer side of the air outlet adapter assembly (13) is connected with the negative pressure box assembly (1) through a flange, the inner side of the air outlet adapter assembly (13) is provided with a U-shaped slot (131), the U-shaped slot (131) is matched with the air outlet of the volute centrifugal fan assembly (11), the air outlet adapter assembly (13) away from the air outlet of the volute centrifugal fan assembly (11) is screw-connected with a lock catch (133), the outer side of the air outlet adapter assembly (13) is provided with an end cover assembly (134), and the inner side of the air outlet adapter assembly (13) is further provided with a blocking plate (135), which is inserted into the U-shaped slot (131).

2. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 1, characterized in that: The volute centrifugal fan assembly (11) comprises a volute assembly (111), a spring lock catch assembly (112) and an inserted flange (113), the spring lock catch assembly (112) is fixed on the volute assembly (111), and the inserted flange (113) is riveted on the air outlet of the volute assembly (111).

3. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 2, characterized in that: The volute assembly (111) is provided with a fixed handle (114) and an auxiliary handle (115), and the spring lock catch assembly (112) is fixed on the fixed handle (114) in a punching and germination mode.

4. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 1, characterized in that: The negative pressure box assembly (1) is further provided with an air duct bottom plate (14), the air duct bottom plate (14) is provided with an oil leakage structure (141), and the oil leakage structure (141) is an eccentric structure.

5. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 1, characterized in that: The U-shaped slot (131) is provided with a V-shaped guide structure (132).

6. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 1, characterized in that: The exhaust pipe assembly (12) comprises an aluminum foil exhaust pipe (121) and an air outlet seat (122), the aluminum foil exhaust pipe (121) is a telescopic flexible pipe structure, the back of the air outlet seat (122) is inserted into the aluminum foil exhaust pipe (121), EVA foamed pads are attached to the inner wall of the aluminum foil exhaust pipe (121) corresponding to the position of the air outlet seat (122), and the aluminum foil exhaust pipe (121) is locked with the air outlet seat (122) through a hoop.

7. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 6, characterized in that: The bottom of the air outlet seat (122) is provided with an oil return structure (123).

8. The integrated kitchen quick-reversing straight-draft air duct structure according to claim 1, characterized in that: The negative pressure box assembly (1) adopts a galvanized sheet and a mortise and tenon structure.

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