An assembled environment-friendly ventilation duct

By using a detachable connection design for the ductwork mechanism and a valve plate assembly driven by a servo motor, the problems of complex installation and non-adjustable ventilation volume in traditional ventilation ducts are solved, achieving the effects of simplified installation, environmentally friendly construction, and flexible adjustment of ventilation volume.

CN224497829UActive Publication Date: 2026-07-14SHAN XI ZHI SHUO KE JI YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAN XI ZHI SHUO KE JI YOU XIAN GONG SI
Filing Date
2025-06-20
Publication Date
2026-07-14

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  • Figure CN224497829U_ABST
    Figure CN224497829U_ABST
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Abstract

The application relates to the technical field of ventilation pipes, in particular to an assembled environment-friendly ventilation pipe, which comprises a wind pipe mechanism, the outer side of the wind pipe mechanism is fixedly connected with a mounting plate, the outer side of the mounting plate is provided with a cover body mechanism, the main body of the cover body mechanism is a U-shaped structure with a one-way opening at the top end, and a groove is arranged on the top end surface of the cover body mechanism, the cover body mechanism, the mounting plate, a plug plate assembly, a spliced cover body and other components are arranged, the mounting plate is inserted into a slot assembly, the plug plate assembly is matched with a spliced slot and is fixed through positioning inserting rods, the ventilation pipe is installed without complex modes such as welding and bolt connection, the installation process is simple, professional construction personnel and equipment are not needed, the installation efficiency is improved, the construction period is shortened, and the problems of low installation efficiency and long construction period of traditional ventilation pipes are solved.
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Description

Technical Field

[0001] This application relates to the technical field of ventilation ducts, and in particular to a prefabricated environmentally friendly ventilation duct. Background Technology

[0002] Ventilation ducts play a crucial role in the ventilation systems of modern buildings. Traditional ventilation ducts are typically manufactured using ordinary metal or plastic sheets. These materials consume a significant amount of energy during production, and some release harmful gases during use, posing a threat to the environment and human health, thus failing to meet environmental protection requirements.

[0003] A search revealed Chinese Patent Publication No. CN210425427U, which discloses a prefabricated building ventilation duct. The duct includes a pre-embedded ventilation pipe with a hollow interior, an assembly slot on its top outer wall, and a pair of symmetrically arranged assembly pipes along the axial direction on the outer wall. A pair of assembly rods are arranged parallel to the ventilation direction on the pre-laid wall. A sealing mechanism's rear and front covers are connected by a connecting rod. By inserting the assembly rods into the assembly pipes, the pre-embedded ventilation pipe is laid along the ventilation direction on the pre-laid wall. An outer wall surface is laid on the outside of the pre-embedded ventilation pipe. The sealing mechanism's connecting rods are engaged in the assembly slots, controlling the rear and front covers to engage at the two ends of the pre-embedded ventilation pipe. This invention features a novel structure, convenient installation and operation, a smooth and aesthetically pleasing appearance, high construction safety, small space occupation, good ventilation effect, and wide applicability.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks:

[0005] Traditional ventilation ducts are often installed using welding or bolt connections, which is a complex process that requires professional construction personnel and equipment. This results in low installation efficiency, a long construction period, and the generation of noise and dust pollution during installation, further impacting the construction environment and the lives of nearby residents. Utility Model Content

[0006] To address the problems mentioned in the background section, this application provides a prefabricated environmentally friendly ventilation duct.

[0007] This application provides a prefabricated environmentally friendly ventilation duct, which adopts the following technical solution: a duct mechanism, wherein an installation plate is fixedly connected to the outside of the duct mechanism, and a cover mechanism is installed on the outside of the installation plate.

[0008] The main body of the cover mechanism is a U-shaped structure with a one-way opening at the top. A groove is provided on the top surface of the cover mechanism. The groove is a slot assembly. The slot assembly is used to place the air duct mechanism and the mounting plate. An insert plate assembly is fixedly connected to the outside of the cover mechanism. There are two insert plate assemblies. The two insert plate assemblies are fixedly connected to the front and rear sides of the cover mechanism in opposite directions. A through hole is provided inside the insert plate assembly. The through hole is a positioning insertion hole.

[0009] Optionally, the main body of the mounting plate is a rectangular frame structure, and the diameter of the mounting plate is larger than the diameter of the duct mechanism. Through holes are provided at the four corners of the interior of the mounting plate, and these through holes are mounting holes.

[0010] Optionally, a splicing cover is installed at the top of the cover mechanism, and grooves are provided on both the front and rear sides of the splicing cover, which are splicing slots.

[0011] Optionally, a splicing cover is installed at the top of the cover mechanism, and grooves are provided on both the front and rear sides of the splicing cover, which are splicing slots.

[0012] Optionally, the splicing slot matches the insert plate assembly fixedly connected to the outside of the cover mechanism, and the insert plate assembly and the splicing slot are equipped with positioning rods, which are screw rods.

[0013] Optionally, an installation mechanism is installed at the top of the splicing cover. The installation mechanism has positioning holes arranged in a ring array inside. The installation mechanism is fixedly connected to the top of the splicing cover by fixing bolts passing through the positioning holes.

[0014] Optionally, a guide rod assembly is fixedly connected to the top surface of the installation mechanism. The guide rod assembly has a cylindrical structure, and a hanging ring assembly is fixedly connected to the top surface of the guide rod assembly. The hanging ring assembly has a ring structure.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] This utility model, by setting up a cover mechanism, mounting plate, insert plate assembly, splicing cover and other components, the mounting plate is inserted into the slot assembly, the insert plate assembly cooperates with the splicing slot and is fixed by the positioning rod, so that the installation of ventilation ducts does not require complex methods such as welding and bolt connection, the installation process is simple, no professional construction personnel and equipment are required, the installation efficiency is improved, the construction cycle is shortened, and the problems of low installation efficiency and long construction cycle of traditional ventilation ducts are solved.

[0017] This invention features an adjustment structure consisting of a servo motor and a valve plate assembly. The servo motor drives the valve plate assembly to rotate, which adjusts the ventilation volume. This allows the ventilation duct to flexibly adjust the ventilation volume according to actual needs, solving the problem of the non-adjustable ventilation volume in traditional ventilation ducts. At the same time, the adjustment structure is installed inside the duct structure, so it does not affect the overall installation and use of the ventilation duct. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front side view of the structure after sectioning in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the combined structure in the embodiments of this application;

[0020] Figure 3 This is a structural schematic diagram of the enclosure mechanism and the spliced ​​enclosure combination in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the front view of an embodiment of this application.

[0022] Figure 5 This is a front view structural diagram of the ductwork mechanism after being cut in the embodiment of this application;

[0023] Figure 6 This is a top view of the structure in an embodiment of this application.

[0024] Reference numerals: 1. Duct mechanism; 101. Mounting plate; 1011. Mounting hole; 1012. Valve plate assembly; 1013. Servo motor; 2. Cover mechanism; 201. Slot assembly; 2011. Insert plate assembly; 2012. Positioning insertion hole; 2013. Splicing cover; 2014. Splicing slot; 2015. Positioning rod; 3. Mounting mechanism; 301. Positioning hole; 3011. Fixing bolt; 3012. Guide rod assembly; 3013. Hanging ring assembly. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses a prefabricated, environmentally friendly ventilation duct. For example... Figures 1-6As shown, the duct mechanism 1 has a mounting plate 101 fixedly connected to its outer side. A cover mechanism 2 is mounted on the outer side of the mounting plate 101. The mounting plate 101, which is fixed to the outer side of the duct mechanism 1, is a rectangular frame structure with a height greater than the diameter of the duct mechanism 1. The mounting holes 1011 at the four corners can be used for initial fixation with the external structure. The cover mechanism 2 is U-shaped with a one-way opening at the top. The slot assembly 201 at the top is a groove structure. During installation, the mounting plate 101 is inserted along the opening direction of the slot assembly 201, so that the duct mechanism 1 is embedded inside the cover mechanism 2, achieving initial positioning of the two. At this time, the edge of the mounting plate 101 and the cover mechanism 2 are aligned. The slot wall of the slot assembly 201 fits snugly to ensure the stable placement of the duct mechanism 1 inside the cover mechanism 2. The main body of the cover mechanism 2 is a U-shaped structure with a one-way opening at the top, and a groove is provided on the top surface of the cover mechanism 2. This groove is the slot assembly 201. The slot assembly 201 is used to place the duct mechanism 1 and the mounting plate 101. An insert plate assembly 2011 is fixedly connected to the outside of the cover mechanism 2. There are two insert plate assemblies 2011, and the two insert plate assemblies 2011 are fixedly connected to the front and rear sides of the cover mechanism 2 in opposite directions. A through hole is provided inside the insert plate assembly 2011. This through hole is a positioning insertion hole 2012.

[0027] Please see Figure 1 The main body of the mounting plate 101 is rectangular, and the diameter of the mounting plate 101 is larger than the diameter of the duct mechanism 1. Through holes are provided at the four corners of the mounting plate 101; these through holes are mounting holes 1011. The insert plate assemblies 2011, symmetrically arranged on the front and rear sides of the outer side of the cover mechanism 2, are plate-shaped structures with internal positioning holes 2012 that are through holes. The splicing cover 2013 is installed at the top of the cover mechanism 2, and the splicing slots 2014 on its front and rear sides match the shape and size of the insert plate assemblies 2011. During splicing, the splicing slots 2014 of the splicing cover 2013 are aligned with the insert plate assemblies 2011 and inserted, so that the insert plate assemblies... The component 2011 is embedded in the splicing slot 2014. Then, the positioning rod 2015 screw structure is passed through the corresponding holes of the positioning insertion hole 2012 and the splicing slot 2014. By rotating the positioning rod 2015, its two ends are fastened to the insertion plate assembly 2011 and the splicing cover 2013 respectively, thereby completing the detachable connection between the cover mechanism 2 and the splicing cover 2013. This structure can realize the splicing of multiple cover sections to meet the installation requirements of ventilation ducts of different lengths. The top of the cover mechanism 2 is equipped with the splicing cover 2013. Grooves are opened on both the front and rear sides of the splicing cover 2013. These grooves are the splicing slots 2014.

[0028] Please see Figure 2The top of the cover mechanism 2 is equipped with a splicing cover 2013. Grooves are provided on both the front and rear sides of the splicing cover 2013; these grooves are splicing slots 2014. The splicing slots 2014 match the insert plate assembly 2011 fixedly connected to the outside of the cover mechanism 2. Positioning rods 2015 are installed inside the insert plate assembly 2011 and the splicing slots 2014. The positioning rods 2015 are threaded rods. The top of the splicing cover 2013 is fixedly connected to the mounting mechanism 3 via a fixing bolt 3011 passing through the positioning hole 301. The guide rod assembly 3012 at the top of the mounting mechanism 3 is cylindrical, and its top hanging ring assembly 3013 is annular. During hoisting, the hook of the external hoisting equipment can pass through the hanging ring assembly 3013, and the entire structure can be hoisted via the guide rod assembly 3012. A ventilation duct is suspended from the building structure. Since the installation mechanism 3 is connected to the splicing cover 2013 through the positioning holes 301 in a ring array, the uniform force of the fixing bolts 3011 can ensure the stability of the installation mechanism 3 and prevent the ventilation duct from shaking or shifting after hoisting. The installation mechanism 3 is installed at the top of the splicing cover 2013. The installation mechanism 3 has positioning holes 301 in a ring array inside. The installation mechanism 3 is fixedly connected to the top of the splicing cover 2013 through the positioning holes 301 by the fixing bolts 3011. A guide rod assembly 3012 is fixedly connected to the top surface of the installation mechanism 3. The guide rod assembly 3012 is a cylindrical structure, and a hanging ring assembly 3013 is fixedly connected to the top surface of the guide rod assembly 3012. The hanging ring assembly 3013 is a ring structure.

[0029] The implementation principle of a prefabricated environmentally friendly ventilation duct in this application embodiment is as follows: The mounting plate 101 fixed on the outside of the duct mechanism 1 is a rectangular frame structure, the height of which is greater than the diameter of the duct mechanism 1. The mounting holes 1011 opened at the four corners can be used for initial fixation with the external structure. The cover mechanism 2 is U-shaped with a one-way opening at the top. The slot assembly 201 at the top is a groove structure. During installation, the mounting plate 101 is inserted along the opening direction of the slot assembly 201, so that the duct mechanism 1 is embedded in the cover mechanism 2, and the two are initially positioned. At this time, the edge of the mounting plate 101 fits against the groove wall of the slot assembly 201, ensuring that the duct mechanism 1 is stably placed in the cover mechanism 2.

[0030] The insert plate assemblies 2011, which are symmetrically arranged on the front and rear sides of the outer side of the cover mechanism 2, are plate-shaped structures with through holes 2012 inside. The splicing cover 2013 is installed on the top of the cover mechanism 2. The splicing slots 2014 on its front and rear sides match the shape and size of the insert plate assemblies 2011. During splicing, the splicing slots 2014 of the splicing cover 2013 are aligned with the insert plate assemblies 2011 and inserted, so that the insert plate assemblies 2011 are embedded in the splicing slots 2014. Then, the positioning rod 2015 screw structure is passed through the corresponding holes of the positioning holes 2012 and the splicing slots 2014. By rotating the positioning rod 2015, its two ends are fastened to the insert plate assemblies 2011 and the splicing cover 2013 respectively, thereby completing the detachable connection between the cover mechanism 2 and the splicing cover 2013. This structure can realize the splicing of multiple cover sections to meet the installation requirements of ventilation ducts of different lengths.

[0031] The top of the splicing cover 2013 is fixedly connected by a fixing bolt 3011 passing through the positioning hole 301 of the installation mechanism 3. The guide rod assembly 3012 at the top of the installation mechanism 3 is cylindrical, and the hanging ring assembly 3013 at its top is annular. During hoisting, the hook of the external hoisting equipment can pass through the hanging ring assembly 3013 and suspend the entire ventilation duct on the building structure through the guide rod assembly 3012. Since the installation mechanism 3 is connected to the splicing cover 2013 through the positioning holes 301 of the annular array, the uniform force of the fixing bolt 3011 can ensure the stability of the installation mechanism 3 and prevent the ventilation duct from shaking or shifting after hoisting.

[0032] The valve plate assembly 1012, which is rotatably connected to the inside of the duct mechanism 1, is driven by a servo motor 1013. The servo motor 1013 is installed at the top of the duct mechanism 1, and its output shaft is fixedly connected to the valve plate assembly 1012. When the ventilation volume needs to be adjusted, the servo motor 1013 starts after receiving a control signal. The output shaft drives the valve plate assembly 1012 to rotate around the rotation axis inside the duct mechanism 1. The rotation angle of the valve plate assembly 1012 determines the ventilation cross-sectional area inside the duct: when the valve plate assembly 1012 is parallel to the duct axis, the ventilation cross-sectional area is the largest, and the ventilation volume reaches its peak; when the valve plate assembly 1012 rotates to be perpendicular to the duct axis, the ventilation cross-sectional area is the smallest, which can achieve precise control of the air volume. This adjustment process is completed by the precise control of the servo motor 1013, without manual operation, and the adjustment process is smooth and will not cause violent disturbance to the airflow inside the duct.

[0033] During the assembly of the entire ventilation duct, all components are connected through structures such as slots, inserts, and positioning rods 2015, without the need for welding or bolt fastening. For example, the insertion connection between the mounting plate 101 and the slot assembly 201, the cooperation between the insert assembly 2011 and the splicing slot 2014, and the screw fixing of the positioning rod 2015 are all detachable structures. When disassembly and maintenance are required, simply unscrew the positioning rod 2015 and pull out the fixing bolt 3011 to separate the components, facilitating cleaning or maintenance of the duct mechanism 1 or the cover mechanism 2. In addition, the detachable design of the components reduces noise and dust pollution during installation, meeting environmental protection requirements; at the same time, the components can be reused, reducing material consumption and construction costs.

[0034] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated environmentally friendly ventilation duct, comprising a duct mechanism (1), wherein an mounting plate (101) is fixedly connected to the outer side of the duct mechanism (1), characterized in that: A cover mechanism (2) is installed on the outside of the mounting plate (101); The main body of the cover mechanism (2) is a U-shaped structure with a one-way opening at the top, and a groove is provided on the top surface of the cover mechanism (2). The groove is a slot assembly (201). The slot assembly (201) is used to place the air duct mechanism (1) and the mounting plate (101). The outer side of the cover mechanism (2) is fixedly connected to the insert plate assembly (2011). There are two insert plate assemblies (2011), and the two insert plate assemblies (2011) are fixedly connected to the front and rear sides of the cover mechanism (2) in opposite directions. The insert plate assembly (2011) has a through hole inside, which is a positioning insertion hole (2012).

2. The prefabricated environmentally friendly ventilation duct according to claim 1, characterized in that: The main body of the mounting plate (101) is a rectangular frame structure, and the diameter of the mounting plate (101) is larger than the diameter of the duct mechanism (1). Through holes are provided at the four corners of the interior of the mounting plate (101), and these through holes are mounting holes (1011).

3. The prefabricated environmentally friendly ventilation duct according to claim 1, characterized in that: The inner side of the duct mechanism (1) is rotatably connected to a valve plate assembly (1012), and a servo motor (1013) is installed on the top surface of the duct mechanism (1). The bottom output shaft of the servo motor (1013) is connected to the valve plate assembly (1012). The servo motor (1013) and the valve plate assembly (1012) together form an adjustment structure.

4. The prefabricated environmentally friendly ventilation duct according to claim 1, characterized in that: The top of the cover mechanism (2) is equipped with a splicing cover (2013), and grooves are provided on both the front and rear sides of the splicing cover (2013), which are splicing slots (2014).

5. A prefabricated environmentally friendly ventilation duct according to claim 4, characterized in that: The splicing slot (2014) matches the insert plate assembly (2011) fixedly connected to the outside of the cover mechanism (2), and the insert plate assembly (2011) and the splicing slot (2014) are equipped with positioning rods (2015), which are screw rods.

6. The prefabricated environmentally friendly ventilation duct according to claim 5, characterized in that: The top of the splicing cover (2013) is equipped with an installation mechanism (3). The installation mechanism (3) has positioning holes (301) arranged in a ring array inside. The installation mechanism (3) is fixedly connected to the top of the splicing cover (2013) by means of fixing bolts (3011) passing through the positioning holes (301).

7. A prefabricated environmentally friendly ventilation duct according to claim 6, characterized in that: The top surface of the installation mechanism (3) is fixedly connected to a guide rod assembly (3012), which is a cylindrical structure, and a hanging ring assembly (3013) is fixedly connected to the top surface of the guide rod assembly (3012), which is a ring structure.