Fresh air pipe outlet dustproof box

Abstract

The utility model discloses a fresh air pipe outlet dustproof box which is used for a closed dustproof structure arranged at the tail end of a fresh air system pipeline and comprises a main body, one end of the main body is provided with a communication port communicated with the tail end of the fresh air system pipeline, the main body is further provided with a cutting cavity, and the cutting cavity is provided with an air port and is closed through a plug arranged at the air port. The utility model has the advantages of simple structure and convenience in installation, and can realize the adaptation to different bottom layer heights at the flexible notch at the back.

Description

Technical Field

[0001] The utility model belongs to the technical field, and particularly relates to a dustproof box for a fresh air duct outlet. Background Art

[0002] A fresh air system is an independent air handling system consisting of both a supply and exhaust system. It comes in two types: ducted and ductless. A ducted fresh air system consists of a fresh air blower and ducting accessories. The blower purifies outdoor air, introduces it into the room, and exhausts it through ducts. A ductless fresh air system also uses a fresh air blower, which purifies outdoor air and introduces it into the room. Ducted fresh air systems are more suitable for industrial or large office areas due to their large engineering requirements, while ductless systems are more suitable for home use due to their ease of installation.

[0003] With the improvement of the quality of life, the demand for various comfort facilities is getting higher and higher. During the construction period, many buildings will preset the pipelines of the fresh air system to meet the requirements of concealed installation. In the existing technology, the fresh air system mainly includes three parts: fans, pipelines and air outlets. During construction, at least the pipelines and air outlets will be installed. In particular, in order to achieve a better fit with the surface of the structure at the installation location, the openings of the air outlets are generally cut to form openings to adapt to different installation requirements. However, during this pre-buried installation process, the exposed air outlet structure will cause the entry of various dust and foreign matter, which often leads to the accumulation of dust or foreign matter at the air outlet of the fresh air system pipeline, and secondary cleaning is required. One of the existing treatment methods is to cover it by covering it with a plastic bag, but this temporary blocking method is prone to damage during construction and has poor stability. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a new air duct outlet dustproof box structure, which is mainly used to meet the construction requirements of existing pre-buried pipelines. It utilizes the need to adjust the opening position after construction and always maintains a closed state during the construction process to prevent dust and foreign matter from entering.

[0005] The technical solution adopted by this utility model is:

[0006] In the first aspect, the utility model provides a dust-proof box for a fresh air duct outlet, which is a closed dust-proof structure for being arranged at the end of a fresh air system pipeline, comprising a main body, one end of which is provided with a connecting port connected to the end of the fresh air system pipeline, and the main body is also provided with an incision cavity, which has an air outlet and is closed by a plug arranged at the air outlet.

[0007] It should be noted that the dustproof box referred to in this application has two forms. During construction, the dustproof box needs to be set at the end of the pipeline of the fresh air system first, and its incision cavity is higher than the structural structure to be set around the entire dustproof box, such as the floor, cement mortar and other structures. That is, after construction, the incision cavity of the dustproof box still has a part left outside and is not buried by the structural structure. The second state is to cut the incision cavity part left outside to form an air outlet according to needs, or remove the plug. The so-called dustproof in this application is mainly aimed at dust, particulate matter and other foreign matter generated during the construction process entering from the air outlet of the pipeline structure in the prior art. The so-called plug is a structure that blocks the possible air outlet. The so-called closed single refers to a structure that is different from the existing open incision cavity, which can form a blocking effect to prevent external dust from directly entering the incision cavity from the outside. However, in reality, the incision cavity is connected to the pipeline of the fresh air system through a connecting port. Therefore, from the perspective of the connected fresh air system pipeline as a whole, the incision cavity can also be regarded as a closed state.

[0008] In combination with the first aspect, the present invention provides a first implementation manner of the first aspect, wherein the plug is detachably and sealedly connected to the incision cavity.

[0009] In combination with the first aspect, the utility model provides a second embodiment of the first aspect, wherein the incision cavity is an extension portion formed by extending the main body toward one end, the plug is a structure arranged at the extended end portion of the incision cavity and integrally formed with the incision cavity, and the air outlet is an opening formed by the incision perpendicular to the extension direction of the incision cavity.

[0010] In combination with the second embodiment of the first aspect, the utility model provides a third embodiment of the first aspect, wherein the main body includes two bent-connected incision chambers and an expansion chamber, the connecting port is arranged at the end of the expansion chamber, and the plug is arranged at the end of the incision chamber away from the connecting port.

[0011] In combination with the third embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the bending angle between the incision cavity and the expansion cavity is a right angle.

[0012] In combination with the third embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the cross-sectional size of the incision cavity is larger than the opening size of the communication port, and the cross-sectional size of the expansion cavity changes continuously and evenly.

[0013] In combination with the third embodiment of the first aspect, the present utility model provides a sixth embodiment of the first aspect, wherein a plurality of reinforcing ribs are provided on the outside of the incision cavity.

[0014] In combination with the first aspect, the present invention provides a seventh implementation of the first aspect, wherein an inner box for replacing the plug is provided at the air outlet, and the outer dimensions of the inner box are the same as the inner cross-sectional dimensions of the air outlet.

[0015] The so-called same size means that when the inner box is installed in the air outlet, the outer wall of the inner box will completely fit into the inner surface of the incision cavity to support the incision cavity and prevent it from deformation.

[0016] In combination with the seventh embodiment of the first aspect, the utility model provides an eighth embodiment of the first aspect, wherein the inner box has a plurality of internal channels for the gas flowing into the pipeline of the fresh air system to pass through.

[0017] In combination with the seventh implementation of the first aspect, the utility model provides a ninth implementation of the first aspect, wherein a dust cover is provided on the outside of the inner box.

[0018] The beneficial effects of the utility model are:

[0019] The utility model is provided with a pre-buried installation structure with a plug, which can prevent dust and other foreign matter from entering the air outlet during the installation process, thereby avoiding the problem of secondary cleaning before use. At the same time, the integrated incision cavity structure design can be used to perform incision processing at the position of the structural surface of the structure at the air outlet after installation, thereby meeting different needs;

[0020] The utility model also adopts the inner box structure design provided at the air outlet, which can provide internal support to the opening for a thinner incision cavity structure, thereby avoiding deformation and blockage during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the dustproof box in the embodiment of the present utility model;

[0022] Figure 2 This utility model Figure 1 The cross-sectional view along line AA is shown in the figure;

[0023] Figure 3 This is a first axonometric view of the dustproof box in an embodiment of the present utility model;

[0024] Figure 4 This is a second isometric view of the dustproof box in the embodiment of the present utility model;

[0025] Figure 5 This is a front view of the dust box after being cut out in the embodiment of the present invention;

[0026] Figure 6 This is a first axonometric view of the dust box after being cut out in the embodiment of the present invention;

[0027] Figure 7 This is a second isometric view of the dust box after being cut out in the embodiment of the present invention;

[0028] Figure 8 This is an axonometric view of the dust cover removed after the dust box is cut out in the embodiment of the present invention;

[0029] Figure 9 This is an axonometric view of the dustproof box in the embodiment of the present invention in a split state after being cut;

[0030] Figure 10 It is a front view of the dustproof box in the separated state after being cut in the embodiment of the present invention.

[0031] In the figure: 1- cutting cavity, 2- reinforcing rib, 3- communicating port, 4- expansion cavity, 5- anti-over-insertion protrusion, 6- inner box, 7- plug, 8- fixing seat, 9- dust cover, 10- inner channel. DETAILED DESCRIPTION

[0032] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not necessarily imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0038] It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] Example 1:

[0040] This embodiment discloses a dustproof box at the outlet of a fresh air duct, which is used as a fixed structure at the end air outlet of a fresh air system pipeline structure.

[0041] It should be noted that the fresh air system described in this embodiment refers to the existing ventilation equipment, including fans and pipeline structures. This embodiment is not limited to the specific number and shape of the pipeline structure, nor is it limited to the specific location of the pipeline structure in the building. It usually includes two types: underground and ceiling-mounted. In order to illustrate its dust prevention requirements, this embodiment uses an underground fresh air system for illustration. This system is not limited to the location of the fan, but the ends of the pipeline structure are all set under the stratum, that is, it includes a pipeline structure that extends underground, and a pipeline structure that extends downward from the top or side wall. This pipeline structure will be pre-buried in place before construction on the ground, and will be limited on the ground with some fixings, and then the ground construction work will be carried out, including but not limited to cement mortar leveling, insulation layer filling, cement curing, installation of ceramic tile floors, etc. This embodiment uses the laying of cement mortar as an illustration.

[0042] The end of the fresh air system's piping structure in this embodiment has a universal connection port, namely an oval male connection port. The dust box in this embodiment is a female port that can be inserted into the structure to achieve a stable connection. As mentioned above, the dust box in this embodiment is set at the end of the piping structure. Its purpose is to provide a closed structure to seal the end connection port of the piping structure. At the same time, after the ground construction is completed, there is a portion left on the ground for operation and processing to form a ventilation port.

[0043] Specifically, the dustproof box has a main structure, which is made of a polymer material of uniform thickness. One end of the main structure has a connecting port 3 for connecting to the pipeline structure of the fresh air system, that is, the above-mentioned elliptical universal female port, and arc grooves are provided on both sides to provide a certain deformation ability, thereby facilitating a comfortable fit between the connecting port 3 and the connecting port of the pipeline structure.

[0044] The other end of the main structure is provided with an incision cavity 1, which has an air outlet and is sealed with a plug 7 structure at the air outlet, thereby forming a communicating structure with one end blocked.

[0045] During installation, first connect the connecting port 3 of the dustproof box to the connecting port of the corresponding pipeline structure to achieve a fixed connection. At the same time, the same fixing parts as the pipeline structure can be used to fix it on the ground. At the same time, adjust the height of the incision cavity 1 as needed so that its air outlet can be higher than the ground after construction. This setting method can ensure that the connecting port of the pipeline structure will not be blocked when laying cement mortar on the ground. At the same time, a stable cavity connecting the pipeline structure is formed through the hard main structure. The plug 7 is provided to prevent dust and other foreign matter from entering the dustproof box from the air outlet and affecting subsequent use. After construction, the air outlet can be formed by processing the plug 7, and the height of the air outlet can be processed according to the ground height so that it is flush with the ground or lower than the ground, and then the corresponding grille can be set.

[0046] Among them, as an implementation method, the air outlet of the incision cavity 1 is a prefabricated structure, that is, the plug 7 is sealed and installed at the air outlet as an independent structure, and after the ground construction is completed, the plug 7 is removed directly or by tools to restore the air outlet structure, and then the air outlet height of the incision cavity 1 is adjusted, and the height is adjusted by cutting or other methods to make it flush with the ground.

[0047] As another embodiment, referring to Figures 1-10 The air outlet in this embodiment refers to the opening formed by the incision cavity 1 after processing, that is, the dustproof box has two forms, referring to Figure 1-Figure 7 Before use, the entire incision cavity 1 and the plug 7 are designed as an integrated structure; Figure 8-10 After use, a tool is used to cut at an appropriate position of the incision cavity 1 to form a smooth incision, which is the air outlet structure, and a shielding structure is provided at the air outlet to achieve a certain shielding effect.

[0048] Furthermore, in order to control costs, the entire dust box is injection molded with low-cost polymer engineering materials. The inner wall thickness of this structure itself is relatively uniform and thin. Since there is a certain vacant area in the incision cavity 1, it may deform during ground construction, resulting in the part left on the ground being irregular and unable to be handled. In this embodiment, a number of reinforcing ribs 2 are provided on the outer wall of the incision cavity 1 to improve its structural strength. Figure 8 In the actual cutting, cutting can be performed along any reinforcement rib 2 as required to form a flat cutting plane.

[0049] Furthermore, the main structure comprises three integral extensions: a connecting port 3, an expansion chamber 4, and a cutout chamber 1, all connected in sequence. A right-angled corner structure exists between the cutout chamber 1 and the expansion chamber 4, ensuring that the connecting port 3 and the vent formed by subsequent cutting are perpendicular. This corner structure design allows the connecting port 3 to connect to a horizontal connection port on the ground. The upwardly curved cutout chamber 1 can accommodate construction layers of varying heights, while leaving a sufficient height for easy disposal.

[0050] The expansion cavity 4 is used for uniform and continuous expansion guidance, that is, extending from the connecting port 3 with a smaller opening size to the incision cavity 1 with a larger cross-sectional size, thereby forming a transitional airflow guidance effect.

[0051] Furthermore, in order to facilitate connection and fixation, several fixing seats 8 are provided on the main structure, that is, parts that are integrally formed with the main structure and extend outward. The fixing seats 8 have circular through holes, which are convenient for inserting bolts or rivets into the ground to fix them on the ground.

[0052] At the same time, in order to prevent the external connection structure at the communication port 3 from being inserted too deep, refer to Figure 5 An inwardly concave anti-over-insertion protrusion 5 is provided on the upper inner side of the communicating port 3. This structure is provided at the connection between the expansion cavity 4 and the communicating port 3 to prevent the external communicating port 3 from being excessively inserted.

[0053] Furthermore, an inner box 6 is provided at the vent. After the incision cavity 1 in this embodiment is cut to form the vent, to further enhance its structural stability and prevent deformation during use even when placed on the ground, a well-fitting inner box 6 is provided at the vent's end. The outer dimensions of the inner box 6 are the same as or slightly larger than the inner dimensions of the vent. Once inserted into the vent, the outer wall of the inner box 6 abuts against the inner wall of the incision cavity 1, providing support.

[0054] The inner box 6 has an annular flange at the top, which limits its insertion into the vent and forms a barrier on the end face of the vent. The inner core has several rectangular internal channels 10 for airflow from the fresh air system. A dust cover 9 is also located on the outside of the inner box 6. In this embodiment, the dust cover 9 can be made of a metal grille to enhance its structural strength.

[0055] The present invention is not limited to the above optional embodiments. Anyone can derive various other forms of products based on the inspiration of the present invention. The above specific embodiments should not be construed as limiting the scope of protection of the present invention. The scope of protection of the present invention shall be based on the scope defined in the claims, and the specification can be used to interpret the claims.

Claims

1. A dustproof box for the outlet of a fresh air duct, which is a closed dustproof structure installed at the end of a fresh air system pipeline, is characterized by: It comprises a main body, one end of which is provided with a connecting port (3) connected to the end of a fresh air system pipeline, and the main body is also provided with an incision cavity (1), the incision cavity (1) has an air outlet and is sealed by a plug (7) provided at the air outlet; The plug (7) is detachably and sealedly connected to the incision cavity (1); An inner box (6) for replacing the plug (7) is provided at the air outlet, and the outer dimensions of the inner box (6) are the same as the inner cross-sectional dimensions of the air outlet; The so-called same size means that when the inner box is installed in the air outlet, the outer wall of the inner box will completely fit into the inner surface of the incision cavity to support the incision cavity and prevent it from deformation.

2. A dustproof box for a fresh air duct outlet according to claim 1, characterized in that: The incision cavity (1) is an extension portion formed by extending the main body toward one end, the plug (7) is a structure provided at the extended end portion of the incision cavity (1) and formed integrally with the incision cavity (1), and the air outlet is an opening formed by the incision in the extending direction of the incision cavity (1) perpendicular to the incision.

3. The dustproof box for the fresh air duct outlet according to claim 2, characterized in that: The main body comprises two bent and connected incision chambers (1) and an expansion chamber (4); the communication port (3) is arranged at the end of the expansion chamber (4); and the plug (7) is arranged at the end of the incision chamber (1) away from the communication port (3).

4. The dustproof box for the fresh air duct outlet according to claim 3, characterized in that: The bending angle between the incision cavity (1) and the expansion cavity (4) is a right angle.

5. The dustproof box for the fresh air duct outlet according to claim 3, characterized in that: The cross-sectional dimensions of the incision cavity (1) are larger than the opening dimensions of the communication cavity (3), and the cross-sectional dimensions of the expansion cavity (4) change continuously and evenly.

6. The dustproof box for the fresh air duct outlet according to claim 3, characterized in that: A plurality of reinforcing ribs (2) are provided outside the incision cavity (1).

7. The dustproof box for the fresh air duct outlet according to claim 1, characterized in that: The inner box (6) has a plurality of inner channels (10) for the gas flowing into the pipeline of the fresh air system to pass through.

8. The dustproof box for the fresh air duct outlet according to claim 7, characterized in that: The inner box (6) is provided with a dust cover (9) on the outside.

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