Air supplement valve assembly

Abstract

The utility model discloses an air supplement valve assembly which comprises a base assembly used for being connected with an external installation foundation and an air supplement valve arranged on the base assembly, the air supplement valve is arranged on the side, facing the indoor space, of the base assembly, and the air supplement valve is detachably connected with the base assembly. Compared with the prior art, the utility model has the advantage of convenience in maintenance and replacement.

Description

Technical Field

[0001] This utility model relates to kitchen appliances, and in particular to a make-up air valve assembly. Background Technology

[0002] To maintain the air pressure balance in the kitchen environment and improve the air quality, people will install a make-up air valve on the kitchen wall that connects the indoor and outdoor air.

[0003] For example, Chinese Patent Application No. 202321552667.3 discloses a damper installation and sealing structure for installing the damper body on a wall. It includes a pre-embedded pipe and a valve body seal. The pre-embedded pipe is embedded in the wall, the damper body is fitted inside the pre-embedded pipe, and the valve body seal is located between the pre-embedded pipe and the damper body, filling the gap between them. Another example is Chinese Patent Application No. 201810192285.1, which discloses a make-up air valve and a central fume purification device.

[0004] The valve body of the aforementioned patented air valve is installed inside a pre-embedded pipe in the wall, which makes maintenance inconvenient. In addition, the rain cover cannot completely prevent water vapor from entering, and the air supply valve and other components inside the wall are easily susceptible to water vapor entering and causing them to malfunction. Although the sealing component can eliminate the gap between the PVC pipe and the air supply valve, it is difficult to install and connect. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a make-up air valve assembly that is easy to maintain and replace, in order to address the shortcomings of the existing technology.

[0006] The second technical problem to be solved by this utility model is to provide a make-up air valve assembly that can prevent water vapor from entering the make-up air valve, in order to address the shortcomings of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a make-up air valve assembly, including a base assembly for connecting to an external mounting base and a make-up air valve disposed on the base assembly, characterized in that: the make-up air valve is disposed on the side of the base assembly facing the room, and the make-up air valve is detachably connected to the base assembly.

[0008] By placing the air supply valve indoors, and detachably connecting the air supply valve to the base assembly, maintenance and replacement can be easily facilitated.

[0009] For installing the make-up air valve assembly, the base assembly includes a first base and a second base. The first base includes a hollow cylindrical first body and a first skirt disposed at one end of the first body. The second base includes a hollow cylindrical second body and a second skirt disposed at one end of the second body. The first body is used to be installed in a ventilation hole that connects the interior and exterior of an external mounting base. The first skirt and the second skirt are fitted together and connected to the external mounting base. The second body is connected to the make-up air valve.

[0010] To enable quick assembly and disassembly of the air supply valve and the base assembly, the air supply valve includes a hollow cylindrical third body. One end of the third body is located inside the second body. The second body has a slot, and the third body has a stepped screw corresponding to the slot. The stepped screw engages with the slot by rotating the third body.

[0011] To make the connection between the air supply valve and the base assembly more secure, the second and third main bodies can be further tightened and reinforced with locking screws.

[0012] The first technical solution adopted by this utility model to solve the second technical problem mentioned above is: the bottom of the second main body is higher than the bottom of the first main body.

[0013] To save on mold opening costs and avoid leakage between the first base and the second base, the first base and the second base are identical in shape, the bottom of the second body is higher than the bottom of the first body, and the centers of the first body and the second body are located on the same vertical line when projected onto the same vertical plane.

[0014] Preferably, both the first and second skirt hems are squares, with the center of the first main body located below the center of the first skirt hem and the center of the second main body located above the center of the second skirt hem.

[0015] To prevent foreign objects from entering the room, a protective net is installed on the inner side of the first main body to prevent foreign objects from entering.

[0016] The second technical solution adopted by this utility model to solve the second technical problem mentioned above is as follows: the air supply valve assembly further includes a rain cover for setting on the outdoor side of the external mounting base. The rain cover is used to cover the outside of the ventilation hole. The rain cover includes an air inlet with an opening facing downwards. The height of the air inlet is lower than that of the ventilation hole.

[0017] Preferably, the make-up air valve assembly further includes a pipe for being disposed within the ventilation hole, wherein the first body is disposed within the pipe.

[0018] Compared with the prior art, the advantages of this utility model are as follows: by setting the air supply valve indoors, the air supply valve and the base assembly are detachably connected, which facilitates maintenance and replacement; by setting the relative positional relationship between the first base and the second base of the base assembly, the step formed by the two can prevent water vapor from entering the air supply valve; by making the air inlet of the rain cover lower than the ventilation hole of the external mounting base, a step is further formed to prevent water vapor from entering the air supply valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation of the air supply valve assembly according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Enlarged view of section I;

[0021] Figure 3 for Figure 1 Enlarged view of section II;

[0022] Figure 4 This is a cross-sectional view of the air supply valve assembly according to an embodiment of the present utility model.

[0023] Figure 5 This is a schematic diagram showing the connection between the base assembly and the air supply valve of the air supply valve assembly according to an embodiment of the present utility model.

[0024] Figure 6 This is an exploded view of some components of the make-up air valve assembly according to an embodiment of the present utility model;

[0025] Figure 7 This is a cross-sectional view of the base assembly of the air supply valve assembly according to an embodiment of the present utility model. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0028] See Figure 1 and Figures 3-4 An air supply valve assembly includes a base assembly 1 for connection to an external mounting base 900 and an air supply valve 2 disposed on the base assembly 1. In this embodiment, the external mounting base 900 is a wall. The air supply valve 2 is disposed on the side of the base assembly 1 facing the interior, and the air supply valve 2 is detachably connected to the base assembly 1.

[0029] See Figures 3-6 The base assembly 1 includes a first base 11 and a second base 12. The first base 11 includes a hollow cylindrical first body 111 and a first skirt 112 located at one axial end of the first body 111, the first skirt 112 extending radially outward from the end of the first body 111. The second base 12 includes a hollow cylindrical second body 121 and a second skirt 122 located at one axial end of the second body 121, the second skirt 122 extending radially outward from the end of the second body 121. A ventilation hole 9001 penetrating the interior and exterior is provided on the external mounting base 900. The first body 111 is disposed within the ventilation hole 9001, the first skirt 112 and the second skirt 122 are fitted together and connected to the external mounting base 900, and the second body 121 is connected to the air supply valve 2. Each skirt is located on the side of the external mounting base 900 facing the interior, and each skirt can be locked to the external mounting base 900 with expansion screws, facilitating installation and ensuring high reliability.

[0030] See Figure 4 and Figure 6 The inner side of the first main body 111 is provided with a protective net 13 to prevent foreign objects from entering, such as birds and mice, and to improve the user experience.

[0031] See Figures 5-7The first skirt 112 is square in shape. The center of the first main body 111 is located below the center of the first skirt 112. The second base 12 has the same shape as the first base 11, and the bottom of the second main body 121 is higher than the bottom of the first main body 111. The center of the second main body 121 is located above the center of the second skirt 122, and the centers of the two skirts coincide. Projected onto the same vertical plane, this vertical plane is parallel to the first skirt 112 (second skirt 122). The centers of the first main body 111 and the second main body 121 are located on the same vertical line. This means the installation angle of the second base 12 is achieved by rotating the first base 11 by 180°. This creates a step between the second main body 121 and the first main body 112, preventing water accumulation and avoiding leakage due to misalignment. Since the first base 11 and the second base 12 have the same shape but different installation angles, they can share a single mold, saving on mold-making costs.

[0032] See Figures 4-6 The air supply valve 2 includes a hollow cylindrical third body 21, a valve plate 22, and a motor 23. The valve plate 22 is located inside the third body 21, and the motor 23 can control the rotation of the valve plate 22, thereby opening or closing the air intake channel inside the third body 21.

[0033] One axial end of the third body 21 is inserted into the inner side of the second body 121. A slot 1211 is provided on the second body 121, and a stepped screw 211 is provided on the third body 21 corresponding to the slot 1211. The stepped screw 211 engages with the slot 1211 by rotating the third body 21. To make the connection between the second body 121 and the third body 21 more secure, a locking screw 212 can be used to further tighten and reinforce the connection. In this embodiment, the stepped screw 211 is located at the top, and the locking screw 212 is located at the bottom.

[0034] See Figure 4 A pipe 4 is installed inside the ventilation hole 9001. In this embodiment, the pipe 4 is a PVC pipe. The first body 111 is installed inside the pipe 4, and the first body 111 and the pipe 4 can be sealed with sealant. An arc-shaped rain cover 3 is installed on the outdoor side of the external mounting base 900. The rain cover 3 covers the outdoor side of the ventilation hole 9001. The rain cover 3 includes an air inlet 31 with its opening facing downwards. The height of the air inlet 31 is lower than that of the ventilation hole 9001, thereby preventing rainwater from entering. Even if a very small amount of water vapor enters, water will not accumulate.

[0035] When the range hood 6 is turned on, the control module 5 identifies and simultaneously opens the air supply valve 2 to introduce fresh outdoor air into the room, thereby achieving the air supply function, maintaining the air pressure balance of the kitchen environment, and improving the air quality in the kitchen.

[0036] See Figures 1-4 The control module 5 includes a control module power cord 51, a control module connection cord 52, and a load connection cord 53. The range hood 6 includes a range hood power cord 61. The motor 23 includes a motor wire 231. The control module power cord 51 is connected to a socket, and the range hood power cord 61 is connected to the load connection cord 53, so that the control module can sense the start and stop of the range hood. The control module connection cord 52 and the motor wire 231 are connected via a plug-in power cord 54, so that when the range hood is turned on, the control module 5 can control the motor 23 to simultaneously open the valve plate 22, introducing fresh outdoor air and realizing the function of kitchen air supply.

[0037] When repairing or replacing the air supply valve 2, it is only necessary to remove the locking screw 212 and rotate it to remove the air supply valve 2 to be replaced. Therefore, it is more advantageous in places with limited space, such as suspended ceilings.

Claims

1. A make-up air valve assembly, comprising a base assembly (1) for connection to an external mounting base (900) and a make-up air valve (2) disposed on the base assembly (1), characterized in that: The air supply valve (2) is located on the side of the base assembly (1) facing the room, and the air supply valve (2) is detachably connected to the base assembly (1).

2. The make-up air valve assembly according to claim 1, characterized in that: The base assembly (1) includes a first base (11) and a second base (12). The first base (11) includes a hollow cylindrical first body (111) and a first skirt (112) disposed at one end of the first body (111). The second base (12) includes a hollow cylindrical second body (121) and a second skirt (122) disposed at one end of the second body (121). The first body (111) is used to be installed in a ventilation hole (9001) that connects the interior and exterior on an external mounting base (900). The first skirt (112) and the second skirt (122) are fitted together and connected to the external mounting base (900). The second body (121) is connected to the air supply valve (2).

3. The make-up air valve assembly according to claim 2, characterized in that: The air supply valve (2) includes a hollow cylindrical third body (21), one end of which is located inside the second body (121). The second body (121) has a slot (1211) and a stepped screw (211) is provided on the third body (21) corresponding to the slot (1211). The stepped screw (211) is engaged with the slot (1211) by rotating the third body (21).

4. The make-up air valve assembly according to claim 3, characterized in that: The second body (121) and the third body (21) are locked and reinforced by locking screws (212).

5. The make-up air valve assembly according to claim 2, characterized in that: The bottom of the second body (121) is higher than the bottom of the first body (111).

6. The make-up air valve assembly according to claim 5, characterized in that: The first base (11) and the second base (12) have the same shape. On the projection of the first body (111) and the second body (121) on the same vertical plane, the centers of the first body (111) and the second body (121) are located on the same vertical line.

7. The make-up air valve assembly according to claim 6, characterized in that: The first skirt edge (112) and the second skirt edge (122) are both square. The center of the first body (111) is located below the center of the first skirt edge (112), and the center of the second body (121) is located above the center of the second skirt edge (122).

8. The make-up air valve assembly according to claim 2, characterized in that: The inner side of the first main body (111) is provided with a protective net (13) to prevent foreign objects from entering.

9. The make-up air valve assembly according to claim 2, characterized in that: The air supply valve assembly also includes a rain cover (3) for mounting on the outdoor side of the external mounting base (900). The rain cover (3) is used to cover the outside of the ventilation hole (9001). The rain cover (3) includes an air inlet (31) with an opening facing downwards. The height of the air inlet (31) is lower than that of the ventilation hole (9001).

10. The make-up air valve assembly according to claim 2, characterized in that: The air supply valve assembly also includes a pipe (4) for being disposed within the ventilation hole (9001), wherein the first body (111) is disposed within the pipe (4).

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