Air outlet seat assembly

Abstract

The utility model discloses an air outlet seat assembly, including seat body, connecting piece, valve stem and valve piece, seat body has the air outlet channel, and the air outlet channel has the first end and the second end, the number of connecting piece is two, and two connecting pieces are symmetrically arranged in the second end of air outlet channel, and the gap between connecting piece and the inner wall surface of air outlet channel is used for connecting the smoke pipe, and the supporting piece is equipped on connecting piece, the valve stem is arranged in the air outlet channel, and the valve stem is above the supporting piece, the number of valve piece is two, and two valve pieces are rotatably connected on the valve stem and are separately arranged on the both sides of valve stem, the air outlet seat assembly of the utility model, when the oil liquid accumulated in the smoke pipe flows downward after the long -term use of the smoke machine, will enter the air outlet channel, then enters the inside of smoke machine from the air outlet channel, so that the top of smoke machine will not appear the oil leakage phenomenon, like this, can improve the use effect of smoke machine, improves the user experience.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to an air outlet assembly. Background Technology

[0002] In existing technology, an air outlet assembly is connected to the air outlet of the range hood. The air outlet assembly includes a base body and a valve plate rotatably connected to the base body. The base body is made of plastic, and a connecting ring is injection-molded on the outer edge of the air outlet end of the base body. The flue pipe connects between the connecting ring and the outer wall surface of the air outlet end of the base body. After long-term use, the oil in the flue pipe flows downwards into the space between the connecting ring and the outer wall surface of the air outlet end of the base body. When there is too much oil, oil will seep out to the outside of the connecting ring, causing oil leakage at the top of the range hood and affecting the user experience. Utility Model Content

[0003] The purpose of this utility model is to provide an air outlet assembly that solves the above-mentioned technical problems.

[0004] The air outlet assembly proposed in this utility model includes a base, connecting pieces, a valve stem, and valve plates. The base has an air outlet channel with a first end and a second end. There are two connecting pieces, which are symmetrically arranged at the second end of the air outlet channel. The gap between the connecting pieces and the inner wall of the air outlet channel is used to connect the flue pipe. A support piece is provided on the connecting piece. The valve stem is located inside the air outlet channel and is positioned above the support piece. There are two valve plates, which are rotatably connected to the valve stem and are located on both sides of the valve stem. When airflow flows from the first end to the second end of the air outlet channel, the two valve plates flip upward and come together to open the air outlet channel. When no airflow flows through the air outlet channel or when airflow flows from the second end to the first end of the air outlet channel, the two valve plates are limited by the support piece and the air outlet channel is closed.

[0005] According to one embodiment of the present invention, the connecting piece includes a lower ring piece and an upper ring piece. The lower ring piece is connected to the inner wall surface of the air outlet channel, and the upper ring piece is connected to the side of the lower ring piece facing the second end of the air outlet channel. The gap between the upper ring piece and the air outlet channel is used to connect the flue.

[0006] According to one embodiment of the present invention, the outer diameter of the ring containing the upper ring piece is smaller than both the outer diameter of the ring containing the lower ring piece and the inner diameter of the air outlet channel corresponding to the upper ring piece, and a connecting piece is provided between the upper ring piece and the lower ring piece.

[0007] According to one embodiment of the present invention, the inner wall surface of the air outlet channel is provided with a protrusion, and the lower ring plate is provided with a positioning hole, the protrusion being connected to the positioning hole.

[0008] According to one embodiment of the present invention, the upper ring piece is provided with a slot, and the portion of the upper ring piece located in the slot is folded inward to form a support piece.

[0009] According to one embodiment of the present invention, each of the two upper ring plates is provided with a mounting groove, the mounting groove protruding outward from the upper ring plate, and the two ends of the valve stem are respectively connected to the mounting groove of the corresponding upper ring plate.

[0010] According to one embodiment of the present invention, when there is no airflow passing through the air outlet channel or when airflow flows from the second end of the air outlet channel to the first end, the two valve plates are limited by the support plate. At this time, the plane where the two valve plates are located is parallel to the plane where the support plate is located.

[0011] According to one embodiment of the present invention, several rotating seats are provided on the sides of the two valve plates corresponding to the valve stem, and the rotating seats are rotatably connected to the valve stem.

[0012] According to one embodiment of the present invention, a seat plate extends outward from the edge of the first end of the seat body, and the seat plate is used to connect to the air outlet of the range hood.

[0013] According to one embodiment of the present invention, the seat plate is square in shape, and a connecting section is provided between the seat plate and the first end of the seat body. The connecting section extends from the first section of the seat body to the seat plate, completing the transformation from the first end of the circular air outlet channel to the square seat plate.

[0014] Compared with the prior art, the air outlet assembly of this utility model has the following advantages:

[0015] The air outlet bracket assembly of this utility model connects the connecting piece to the inner wall of the air outlet channel of the bracket body, so that a gap is formed between the connecting piece and the inner wall of the air outlet channel. After the air outlet bracket assembly is installed on the range hood, one end of the kitchen exhaust pipe can be inserted into the gap, that is, one end of the exhaust pipe is located in the second end of the air outlet channel. Thus, after long-term use of the range hood, when the oil accumulated in the exhaust pipe flows downward, it will enter the air outlet channel and then enter the interior of the range hood, so that oil leakage will not occur at the top of the range hood. In this way, the performance of the range hood can be improved and the user experience can be enhanced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the air outlet assembly of this utility model;

[0017] Figure 2 This is an exploded view of the air outlet assembly of this utility model.

[0018] In the diagram: 1. Base, 11. Air outlet duct, 111. Protrusion, 12. Base plate, 13. Connecting section, 2. Connecting piece, 21. Support piece, 22. Lower ring piece, 221. Positioning hole, 23. Upper ring piece, 231. Mounting groove, 24. Connecting piece, 3. Valve stem, 4. Valve plate, 41. Rotary seat.

[0019] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0024] This utility model discloses an air outlet assembly for a range hood. Please refer to [link / reference]. Figures 1 to 2The air outlet assembly proposed in this utility model includes a base 1, a connecting piece 2, a valve stem 3, and a valve plate 4. The base 1 has an air outlet channel 11, which has a first end and a second end. There are two connecting pieces 2, which are symmetrically arranged at the second end of the air outlet channel 11. The gap between the connecting piece 2 and the inner wall of the air outlet channel 11 is used to connect the flue. A support piece 21 is provided on the connecting piece 2. The valve stem 3 is located inside the air outlet channel 11 and is located above the support piece 21. There are two valve plates 4, which are rotatably connected to the valve stem 3 and are respectively arranged on both sides of the valve stem 3. When airflow flows from the first end to the second end of the air outlet channel 11, the two valve plates 4 flip upward and come together to open the air outlet channel 11. When no airflow flows through the air outlet channel 11 or when airflow flows from the second end to the first end of the air outlet channel 11, the two valve plates 4 are limited by the support piece 21 and close the air outlet channel 11.

[0025] In this embodiment, the air outlet assembly is installed at the air outlet of the range hood and connected to the flue pipe in the kitchen to connect the range hood and the flue pipe. This allows the fumes drawn by the range hood to flow through the air outlet assembly to the flue pipe and then be discharged outdoors through the flue pipe. The base 1 is tubular or cylindrical. One end of the base 1 connects to the air outlet of the range hood, and the second end connects to the flue pipe. Two connecting pieces 2 are connected to the inner wall of the base 1, forming two connecting gaps. One end of the flue pipe can extend into the air outlet channel 11 and be inserted into the two connecting gaps, thereby achieving a fixed connection between the flue pipe and the air outlet assembly, as well as communication between the flue pipe and the air outlet channel 11.

[0026] The valve stem 3 is located inside the air outlet channel 11 and near the second end. Two valve plates 4, with the valve stem 3 as the boundary, partially cover or open the air outlet channel 11. When the range hood is running, the airflow inside the range hood flows from the air outlet to the air outlet seat. As the airflow flows from the first end to the second end of the air outlet channel 11, the two valve plates 4 flip upwards to open the air outlet channel 11, thus avoiding the airflow path and allowing the airflow to flow into the flue from the second end of the air outlet channel 11. When the range hood stops running, the two valve plates 4 return to their original position to cover the air outlet channel 11, thus blocking the backflow path of the airflow and preventing the fumes in the flue from flowing back into the range hood, thereby ensuring the smoke extraction effect. After returning to their original position, the two valve plates 4 overlap the support plate 21, allowing them to remain in the position covering the air outlet channel 11 and preventing them from continuing to flip downwards and open the air outlet channel 11.

[0027] Connect the connecting piece 2 to the inner wall of the air outlet duct 11 of the base 1, so that a gap is formed between the connecting piece 2 and the inner wall of the air outlet duct 11. After the air outlet base assembly is installed on the range hood, one end of the kitchen exhaust pipe can be inserted into this gap, that is, one end of the exhaust pipe is located in the second end of the air outlet duct 11. Thus, after long-term use of the range hood, when the oil accumulated in the exhaust pipe flows downward, it will enter the air outlet duct 11 and then enter the interior of the range hood, so that there will be no oil leakage at the top of the range hood. In this way, the performance of the range hood can be improved and the user experience can be enhanced.

[0028] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, the connecting piece 2 includes a lower ring piece 22 and an upper ring piece 23. The lower ring piece 22 is connected to the inner wall of the air outlet channel 11, and the upper ring piece 23 is connected to the side of the lower ring piece 22 facing the second end of the air outlet channel 11. The gap between the upper ring piece 23 and the air outlet channel 11 is used to connect the flue. Both the upper ring piece 23 and the lower ring piece 22 extend circumferentially along the air outlet channel 11, thereby increasing both the connection area between the lower ring piece 22 and the inner wall of the air outlet channel 11 and the limiting contact area of ​​the upper ring piece 23 against the flue, thus improving the connection stability between the connecting piece 2 and the base 1, as well as the fit stability between the flue and the connecting piece 2 and the base 1.

[0029] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, the outer diameter of the ring containing the upper ring piece 23 is smaller than both the outer diameter of the ring containing the lower ring piece 22 and the inner diameter of the corresponding section of the air outlet channel 11 and the upper ring piece 23. A connecting piece 24 is provided between the upper ring piece 23 and the lower ring piece 22. The upper ring piece 23 and the lower ring piece 22 are connected by the connecting piece 24. The connecting piece 24 extends obliquely from the side edge connected to the lower ring piece 22 toward the second end and center of the air outlet channel 11. The upper ring piece 23 is connected to the side edge of the connecting piece 24 away from the lower ring piece 22, so that a connection gap can be formed between the upper ring piece 23 and the inner wall surface of the air outlet channel 11.

[0030] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, the inner wall of the air outlet duct 11 is provided with a protrusion 111, and the lower ring plate 22 is provided with a positioning hole 221. The protrusion 111 is connected to the positioning hole 221. The protrusion 111 and the positioning hole 221 cooperate to realize the fixed connection between the lower ring plate 22 and the base 1. Of course, the cooperation between the protrusion 111 and the positioning hole 221 can also be used to pre-fix the lower ring plate 22 and the base 1, and then the lower ring plate 22 and the base 1 can be formally fixedly connected by other means, thereby improving the installation convenience of the connecting piece 2 and the base 1.

[0031] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, the upper ring piece 23 is provided with a groove, and the portion of the upper ring piece 23 located in the groove is folded inward to form a support piece 21. In this way, the support piece 21 and the upper ring piece 23 can be integrally formed, which simplifies the connection method between the support piece 21 and the upper ring piece 23 and improves the connection strength between the support piece 21 and the upper ring piece 23.

[0032] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, each of the two upper ring plates 23 is provided with a mounting groove 231. The mounting groove 231 protrudes outward from the upper ring plate 23, and the two ends of the valve stem 3 are respectively connected to the mounting groove 231 of the corresponding upper ring plate 23. The mounting groove 231 is located on the side of the upper ring plate 23 facing the center line of the air outlet channel 11. The mounting grooves 231 on the two upper ring plates 23 are arranged opposite each other so that the two ends of the valve stem 3 can be inserted into the two mounting grooves 231 respectively. In this way, the two upper ring plates 23 can support the installation of the valve stem 3 in the air outlet channel 11 through the mounting grooves 231, and the valve stem 3 can also play a role in fixing and limiting the two upper ring plates 23, thereby making the overall structure of the air outlet assembly more compact and stable.

[0033] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, when there is no airflow passing through the air outlet channel 11 or when there is airflow flowing from the second end of the air outlet channel 11 to the first end, the two valve plates 4 are limited by the support plate 21. At this time, the plane where the two valve plates 4 are located is parallel to the plane where the support plate 21 is located.

[0034] When the two support plates 21 face the second end of the air outlet channel 11, they are on the same plane. When the two valve plates 4 are flipped to overlap the two support plates 21, the two valve plates 4 face the first end of the air outlet channel 11, they are on the same plane. Since the plane of the two valve plates 4 is parallel to the plane of the two support plates 21 when the two valve plates 4 overlap, the overlap area between the two valve plates 4 and the two support plates 21 can be increased, so that the two valve plates 4 can effectively block the cross-section of the air outlet channel 11, thereby improving the blocking effect of the air outlet channel 11 and reducing the gap between the two valve plates 4 and the inner wall of the air outlet channel 11, so as to prevent the oil fumes in the flue from flowing into the range hood through the gap, thereby effectively improving the anti-oil fume backflow effect of the air outlet assembly.

[0035] The air outlet assembly of this utility model, such as Figure 1 and Figure 2As shown, several rotating seats 41 are provided on the sides of the two valve plates 4 corresponding to the valve stem 3. The rotating seats 41 are rotatably connected to the valve stem 3. The rotating seats 41 have shaft holes through which the valve stem 3 passes and is rotatably engaged with the shaft holes, thereby allowing the valve plates 4 to rotate around the valve stem 3. Several rotating seats 41 are spaced apart along the length of the valve stem 3 to increase the number of rotatable connection positions between the valve stem 3 and the valve plates 4, thereby improving the connection stability between the valve plates 4 and the valve stem 3.

[0036] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, a seat plate 12 extends outward from the edge of the first end of the base 1. The seat plate 12 is used to connect the air outlet of the range hood. The seat plate 12 can increase the connection area between the air outlet assembly and the range hood, thereby improving the connection stability between the air outlet assembly and the range hood, and ensuring the airtight connection between the air outlet of the range hood and the air outlet channel 11 of the base 1.

[0037] The air outlet assembly of this utility model, such as Figure 1 and Figure 2 As shown, the seat plate 12 is square in shape, and a connecting section 13 is provided between the seat plate 12 and the first end of the seat body 1. The connecting section 13 extends from the first section of the seat body 1 to the seat plate 12, completing the transformation from the first end of the circular air outlet channel 11 to the square seat plate 12.

[0038] The air outlet of the range hood is usually located on the top of the air collection box of the range hood. The top surface of the air collection box is rectangular, while the flue is usually circular. Therefore, by setting the base plate 12 to be square and the base body 1 to be cylindrical, the shapes of the base plate 12 and the base body 1 can be adapted to the shapes of the top of the range hood and the flue, respectively, thereby improving the ease of installation of the air outlet assembly with the range hood and the ease of connection with the flue.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air outlet assembly, characterized in that, include: The seat (1) has an air outlet channel (11) having a first end and a second end; There are two connecting pieces (2), which are symmetrically arranged at the second end of the air outlet channel (11). The gap between the connecting piece (2) and the inner wall of the air outlet channel (11) is used to connect the flue. The connecting piece (2) is provided with a support piece (21). Valve stem (3) is located in the air outlet channel (11) and is positioned above the support plate (21); There are two valve plates (4), which are rotatably connected to the valve stem (3) and are respectively located on both sides of the valve stem (3); When airflow flows from the first end to the second end of the air outlet channel (11), the two valve plates (4) flip upward and come together to open the air outlet channel (11). When no airflow flows through the air outlet channel (11) or when airflow flows from the second end to the first end of the air outlet channel (11), the two valve plates (4) are limited by the support plate (21) and the air outlet channel (11) is closed.

2. The air outlet assembly according to claim 1, characterized in that, The connecting piece (2) includes a lower ring piece (22) and an upper ring piece (23). The lower ring piece (22) is connected to the inner wall of the air outlet channel (11). The upper ring piece (23) is connected to the side of the lower ring piece (22) facing the second end of the air outlet channel (11). The gap between the upper ring piece (23) and the air outlet channel (11) is used to connect the flue.

3. The air outlet assembly according to claim 2, characterized in that, The outer diameter of the ring containing the upper ring piece (23) is smaller than both the outer diameter of the ring containing the lower ring piece (22) and the inner diameter of the section of the air outlet channel (11) corresponding to the upper ring piece (23). A connecting piece (24) is provided between the upper ring piece (23) and the lower ring piece (22).

4. The air outlet assembly according to claim 2, characterized in that, The inner wall of the air outlet channel (11) is provided with a protrusion (111), and the lower ring plate (22) is provided with a positioning hole (221). The protrusion (111) is connected to the positioning hole (221).

5. The air outlet assembly according to claim 2, characterized in that, The upper ring piece (23) is provided with a slot, and the portion of the upper ring piece (23) located in the slot is folded inward to form the support piece (21).

6. The air outlet assembly according to claim 2, characterized in that, Both upper ring plates (23) are provided with mounting grooves (231), which protrude outward from the upper ring plate (23). The two ends of the valve stem (3) are respectively connected to the mounting grooves (231) of the upper ring plate (23) on the corresponding side.

7. The air outlet assembly according to claim 1, characterized in that, When there is no airflow passing through the air outlet channel (11) or when there is airflow flowing from the second end of the air outlet channel (11) to the first end, the two valve plates (4) are limited by the support plate (21). At this time, the plane where the two valve plates (4) are located is parallel to the plane where the support plate (21) is located.

8. The air outlet assembly according to claim 1, characterized in that, Several rotating seats (41) are provided on the sides of the two valve plates (4) corresponding to the valve stem (3), and the rotating seats (41) are rotatably connected to the valve stem (3).

9. The air outlet assembly according to claim 1, characterized in that, The edge of the first end of the seat (1) extends outward to form a seat plate (12), which is used to connect to the air outlet of the smoke hood.

10. The air outlet assembly according to claim 9, characterized in that, The seat plate (12) is square in shape. A connecting section (13) is provided between the seat plate (12) and the first end of the seat body (1). The connecting section (13) extends from the first section of the seat body (1) to the seat plate (12), completing the transformation from the first end of the circular air outlet channel (11) to the square seat plate (12).

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