Balanced ventilation system for kitchen
By adding a fresh air device between the exhaust pipe of the range hood and the connecting frame, the fan is used to introduce external air, the air pressure difference problem in the kitchen is solved, and the balanced ventilation effect is achieved to ensure the normal opening of the door.
Patent Information
- Application Number
- CN202422382419.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing kitchen range hood causes the air pressure difference between indoor and outdoor during operation, making it difficult to maintain the air pressure balance between indoor and outdoor kitchen, affecting the normal opening of the door.
A fresh air device is added between the exhaust pipe of the range hood and the connecting frame, which drives external air into the kitchen through the fan to maintain the balance of air pressure inside and outside the kitchen.
It achieves the balance between the internal and external air pressure during the kitchen fume, ensures that the door can be opened normally, and provides a convenient ventilation environment.
Smart Images
Figure CN223165676U_ABST
Abstract
Description
Technical Field
[0001] The utility model particularly relates to a balanced ventilation system for a kitchen. Background Art
[0002] In order to prevent the oil smoke generated during cooking from polluting the indoor environment and endangering human health, kitchen range hoods have been widely used.
[0003] When using a range hood in a general kitchen, the indoor gas is discharged to the outside. In order to prevent the smoke from flowing into the room outside the kitchen, the kitchen door needs to be closed when cooking. However, this can easily increase the pressure difference between the inside and outside of the kitchen, making it inconvenient for people to open the door. Utility Model Content
[0004] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a balanced ventilation system for the kitchen.
[0005] A balanced ventilation system for a kitchen includes a range hood and an exhaust duct connected to one side of the range hood. The exhaust duct is provided with a connecting frame, which is arranged in an inverted U shape and has an air intake pipe provided on one side of the connecting frame. An installation area is formed between the connecting frame and the exhaust duct, and a fresh air device is detachably connected to the installation area.
[0006] The fresh air device includes a shell, and a fan, an air inlet and an air outlet respectively arranged on the shell. The air inlet is connected to the air inlet pipe, and the fan is arranged in the shell to output the air flow from the air inlet to the air outlet.
[0007] In one embodiment, the shell is fitted and embedded in the installation area, and a card slot is recessed on the connecting frame at the top of the installation area. A limiting member that can move up and down relative to the shell is provided on the shell, and a spring is abutted between the lower end of the limiting member and the inner side wall of the shell. The spring enables the upper end of the limiting member to elastically protrude above the shell and be accommodated in the card slot.
[0008] In one embodiment, an opening communicating with the inner cavity of the shell is formed through the upper end of the limiting member.
[0009] In one embodiment, a connecting plate extends from one side of the limiting member, a limiting hole is vertically penetrated through one side of the connecting plate, and a limiting screw is threadedly connected in the limiting hole on one side of the housing.
[0010] In one embodiment, a filter module is further provided in the housing.
[0011] In one embodiment, the filter module includes several filter screens.
[0012] In one embodiment, the filtering module can be installed, placed or removed through openings in the inner cavity of the housing.
[0013] In summary, the beneficial effects of the present utility model compared with the prior art are as follows:
[0014] By adding a fresh air device between the exhaust duct of the range hood and the connecting frame, the present utility model drives the outside air to be transported from the intake pipe through the air inlet of the housing to the air outlet by the fan in the fresh air device, so as to realize the replenishment of the outside gas back into the kitchen interior, which can keep the internal pressure of the kitchen always consistent with the outside when the range hood extracts oil fume, and keep the kitchen in a balanced ventilation state.
[0015] Moreover, the fresh air device is detachably connected in the installation area formed between the connecting frame and the exhaust duct, which is convenient for the subsequent disassembly and maintenance of the fresh air device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic cross-sectional structure view of a kitchen balanced ventilation system in an embodiment of the present utility model;
[0017] Figure 2 is an exploded view of a kitchen balanced ventilation system in an embodiment of the present utility model;
[0018] Figure 3 is a schematic three-dimensional structure view of a kitchen balanced ventilation system in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be further described below in conjunction with the drawings and the detailed description:
[0020] As Figures 1 to 3 shown, the embodiment of the present utility model preferably provides a kitchen balanced ventilation system, which includes a range hood 1 and an exhaust duct 2 connected to one side of the range hood 1. A connecting frame 3 is provided on the exhaust duct 2. The connecting frame 3 is in an inverted U shape, and an intake pipe 4 is provided on one side of the connecting frame 3. An installation area is formed between the connecting frame 3 and the exhaust duct 2, and a fresh air device is detachably connected in the installation area. The fresh air device includes a housing 5, and a fan 6, an air inlet 7 and an air outlet 8 respectively provided on the housing 5. The air inlet 7 is communicated with the intake pipe 4, and the fan 6 is arranged in the housing 5 to output the air flow at the air inlet 7 into the air outlet 8.
[0021] Specifically, one end of the air intake pipe passes through the kitchen wall and is connected to the outside world. By adding a fresh air device between the exhaust duct of the range hood and the connecting frame, the fan in the fresh air device drives the outside air from the air intake pipe to the air outlet of the shell, thereby realizing the re-supply of the outside air into the kitchen. When the range hood is extracting oil fumes, the internal pressure in the kitchen is always consistent with that of the outside world, so that the kitchen maintains a balanced ventilation state.
[0022] Moreover, the fresh air device can be detachably connected to the installation area formed between the connecting frame and the exhaust duct, thereby facilitating subsequent disassembly and maintenance of the fresh air device.
[0023] Furthermore, the shell 5 is fitted and embedded in the installation area, and a slot 21 is recessed on the top of the installation area on the connecting frame 3. A limit member 9 is provided on the shell 5 that can move up and down relative to it. A spring 10 is abutted between the lower end of the limit member 9 and the inner side wall of the shell 5. The spring 10 enables the upper end of the limit member 9 to elastically protrude above the shell 5 and be accommodated in the slot 21.
[0024] Specifically, the shell of the fresh air device is embedded in the installation area of the connection frame and the exhaust duct combination, thereby realizing the pre-positioning installation of the shell of the fresh air device, and then the spring inside the shell abuts against the limiter, so that the upper end of the limiter can elastically protrude above the shell and be accommodated in the slot, thereby realizing the fixed installation of the shell of the fresh air device.
[0025] Furthermore, an opening 22 is formed through the upper end of the stopper 9 and communicates with the inner cavity of the housing 5. Specifically, by providing the opening through the stopper, after the fresh air device is disassembled from the connecting frame, the user can directly install, remove, and maintain the electrical components or filters in the inner cavity of the housing of the fresh air device through the opening, thereby saving the trouble of disassembling the housing.
[0026] Furthermore, a connecting plate 11 extends from one side of the limiting member 9, and a limiting hole 12 is vertically penetrated on one side of the connecting plate 11. A limiting screw 13 is threadedly connected to the limiting hole 12 on one side of the housing 5. Specifically, the limiting hole and the limiting screw cooperate to achieve the upper and lower limiting movement of the limiting member relative to the housing. When the limiting member is maintained in the connection state embedded in the slot by the elastic force of the spring, the user can tighten the limiting screw to make the limiting screw thread tightly clamped in the connection state of the connecting plate, thereby effectively enhancing the firmness of the connection structure between the limiting member and the housing. When disassembling, the user can manually hold the connecting plate and apply force to drive the limiting member out of the slot, thereby achieving the separation and disassembly of the housing from the installation area.
[0027] Further, a filtering module 14 is also provided inside the housing 5. The filtering module 14 includes a plurality of filter meshes 15. The filtering module 14 can be installed, placed or disassembled in the inner cavity of the housing 5 through the opening 22. Further, when the fresh air device is disassembled and detached from the connecting frame, the user can directly install, disassemble and maintain the electrical components or the filter mesh in the inner cavity of the housing of the fresh air device through the opening, thus saving the trouble of disassembling the housing.
[0028] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.
Claims
1. A kitchen balanced ventilation system, comprising an oil fume extractor (1) and an exhaust duct (2) connected to one side of the oil fume extractor (1), characterized in that: A connecting frame (3) is provided on the exhaust duct (2). The connecting frame (3) is in an inverted U shape, and an intake pipe (4) is provided on one side of the connecting frame (3). An installation area is formed between the connecting frame (3) and the exhaust duct (2), and a fresh air device is detachably connected in the installation area. The fresh air device includes a housing (5), a fan (6), an air inlet (7), and an air outlet (8) respectively provided on the housing (5). The air inlet (7) is communicated with the intake pipe (4), and the fan (6) is arranged in the housing (5) to output the air flow at the air inlet (7) into the air outlet (8).
2. The kitchen balanced ventilation system according to claim 1, wherein: The housing (5) is fitted and embedded in the installation area. A clamping groove (21) is recessed at the top of the installation area on the connecting frame (3). A limiting member (9) capable of moving up and down relative to the housing (5) is provided on the housing (5). A spring (10) is abutted between the lower end of the limiting member (9) and the inner side wall of the housing (5), so that the upper end of the limiting member (9) can elastically protrude above the housing (5) and be received in the clamping groove (21).
3. The kitchen balanced ventilation system according to claim 2, wherein: An opening (22) communicating with the inner cavity of the housing (5) is formed through the upper end of the limiting member (9).
4. The kitchen balanced ventilation system according to claim 2, wherein: A connecting plate (11) extends from one side of the limiting member (9). A limiting hole (12) is vertically formed through one side of the connecting plate (11), and a limiting screw (13) is threadedly connected in the limiting hole (12) on one side of the housing (5).
5. The kitchen balanced ventilation system according to claim 3, characterized in that: A filtering module (14) is further provided in the housing (5).
6. The kitchen balanced ventilation system according to claim 5, characterized in that: The filtering module (14) includes a plurality of filter meshes (15).
7. The kitchen balanced ventilation system according to claim 5, wherein: The filtering module (14) can be installed, placed or disassembled in the inner cavity of the housing (5) through the opening (22).