Fixing device for pipeline ventilator air port installation
By introducing structures such as sealing rings, bearings, telescopic rods, springs, and pulleys into the duct ventilation fan outlet installation device, the installation problem of duct ventilation fans in narrow spaces is solved, achieving stable installation, dust prevention, reduced wear, and improved air circulation.
Patent Information
- Application Number
- CN202520410006.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing duct ventilation fan vent installation devices are difficult to install in narrow spaces and can easily lead to problems such as air not being able to enter.
A fixing device including a sealing ring, bearing, telescopic rod, spring and pulley is designed. The sealing ring increases the sealing performance, the bearing adjusts the direction of the air inlet pipe, the telescopic rod adapts to different widths of space, the spring adjusts the height, and the pulley reduces friction, so as to realize the flexible installation of the air inlet pipe assembly and air circulation.
It enables stable installation of duct ventilation fans in narrow spaces, preventing dust from entering, reducing wear, facilitating adjustment of the air inlet duct direction and angle, ensuring air circulation, and is simple and convenient to operate.
Smart Images

Figure CN223869396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of duct ventilation fan technology, and in particular to a fixing device for installing the air outlet of a duct ventilation fan. Background Technology
[0002] Duct exhaust fans are air conditioning appliances commonly used in homes and public places. They use an electric motor to drive the fan blades, creating airflow and exchanging indoor and outdoor air. A key feature of these fans is their ability to be connected to ducts, expelling stale indoor air while introducing fresh air, thus improving indoor air quality. However, duct exhaust fans, as ventilation products, are often difficult to install due to limited space, especially connecting the unit to the ductwork. To address this, a mounting device for duct exhaust fan vents is proposed, allowing for installation in confined spaces with simple and convenient operation.
[0003] A search revealed Chinese patent application number 201721331312.6, which discloses an air conditioning vent fixing device. The key technical feature of this device is that it includes a vent, which comprises a grille and an air duct. A fixing device is installed on the outer wall of the air duct, and the fixing device includes a clamping groove located at the end of the air duct near the grille, with a clamping ring fitted onto the clamping groove. The fixing device in the aforementioned document has the following drawback: when facing a narrow space, this device may completely compress the bellows, preventing air from entering. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fixing device for installing the air outlet of a duct ventilation fan.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fixing device for installing a duct ventilation fan vent includes a body with a sliding groove and an air inlet. A limit block is provided on one side of the air inlet. A drive assembly is provided on the body, and a ventilation fan assembly is provided on the drive assembly. The ventilation fan assembly is provided with an air inlet duct assembly. The ventilation fan assembly includes a fan housing with an annular structure. A bracket is provided inside the fan housing, and a motor is mounted on the bracket by bolts. Fan blades are provided at the output end of the motor. A sealing groove is provided above the fan housing, and the air inlet duct assembly is provided above the fan housing.
[0007] As a further embodiment of this utility model: the air inlet pipe assembly includes: a rotating seat, the rotating seat having an annular structure, the rotating seat being bolted to the top of the fan housing, a rotating groove being provided on the top of the rotating seat, and a sealing ring being provided at the bottom of the rotating seat, the sealing ring being installed in the sealing groove of the fan housing.
[0008] As a further improvement of this utility model, the air inlet pipe assembly also includes a bearing, which is installed in the rotating groove of the rotating seat.
[0009] As a further improvement of this utility model: the air inlet pipe assembly also includes a telescopic seat, the telescopic seat is provided with a plurality of mounting holes, the mounting holes are narrow at the bottom and wide at the top, a telescopic rod is provided in the mounting hole, a plurality of telescopic rods are provided, and the telescopic rods are provided with circular protrusions slightly larger than the mounting holes at the top and bottom.
[0010] As a further improvement of this utility model: the air inlet pipe assembly also includes a spring, and a spring is provided below the circular protrusion structure of the telescopic rod, and the spring is installed in the mounting hole of the telescopic seat.
[0011] As a further embodiment of this utility model: the air inlet pipe assembly also includes a platform-shaped pipe, which is mounted on a telescopic rod. An elastic cloth is provided below the platform-shaped pipe, and the other end of the elastic cloth is connected to a telescopic seat. A square pipe is provided above the platform-shaped pipe.
[0012] As a further embodiment of this utility model: the drive assembly includes a slide rail, which is installed on one side of the sliding groove of the machine body. A screw is rotatably installed in the slide rail, and a handle is provided on one side of the screw. A sliding member is provided on the screw, and an air inlet is provided on the sliding member. An air exchange fan assembly is installed on the air inlet.
[0013] As a further improvement of this utility model, the fixing device also includes pulleys, and a plurality of pulleys are provided. The pulleys are installed on both sides of the square tube by a mounting bracket.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. By setting a sealing ring, the sealing performance of the fixing device can be increased, preventing dust from entering the device from narrow spaces.
[0016] 2. The air inlet duct assembly can be rotated via the bearing, making it easy to adjust the direction of the air inlet duct without the need for additional connecting pipes.
[0017] 3. The height of the air intake duct assembly can be adjusted by the spring. When facing a narrow space, the air intake duct assembly is squeezed, which causes the telescopic rod to squeeze the spring, allowing the air intake duct assembly to be installed in spaces of different widths.
[0018] 4. Assemble the ventilation fan assembly and the air intake pipe assembly, adjust the pipe angle of the air intake pipe assembly, and then move the air intake fan assembly to the air intake port of the machine body by rotating the handle. A limit block is set on one side of the air intake port. When the sliding part moves to the limit block, stop rotating the handle. Drive the motor through the control module to make the air intake fan assembly blow air into the machine body.
[0019] Using pulleys can reduce wear on the intake pipe assembly in confined spaces and also reduce friction. Attached Figure Description
[0020] Figure 1 This is a structural schematic diagram of a fixing device for installing the air outlet of a duct ventilation fan according to the present invention;
[0021] Figure 2 This is a schematic diagram of the top structure of a fixing device for installing a duct ventilation fan vent according to the present invention;
[0022] Figure 3 This utility model provides a structural schematic diagram of a duct ventilation fan assembly and an air inlet pipe assembly for a fixing device for installing a duct ventilation fan vent.
[0023] Figure 4 This is a cross-sectional structural diagram of a fixing device for installing a duct ventilation fan outlet, comprising a ventilation fan assembly and an air inlet pipe assembly, as proposed in this utility model.
[0024] Figure 5 This is a schematic cross-sectional view of a portion A of the ventilation fan assembly and air inlet pipe assembly of a fixing device for installing a duct ventilation fan vent according to the present invention.
[0025] Figure 6 This is a partial cross-sectional structural diagram of the ventilation fan assembly and air inlet pipe assembly of the fixing device for installing the vent of the duct ventilation fan proposed in this utility model.
[0026] In the diagram: 1-body, 2-slide rail, 3-handle, 4-sliding component, 5-pulley, 6-bracket, 7-motor, 8-fan blade, 9-rotating seat, 10-sealing ring, 11-bearing, 12-telescopic seat, 13-elastic cloth, 14-telescopic rod, 15-spring, 16-tablet tube, 17-square tube, 18-screw, 19-fan housing. Detailed Implementation
[0027] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.
[0028] The embodiments of this utility model are described in detail below. Examples of these 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 throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0029] Example 1
[0030] A fixing device for installing the air outlet of a duct ventilation fan, such as Figure 1 As shown, the device includes a body 1, on which a sliding groove is provided, and an air inlet is provided on the groove. A limit block is provided on one side of the air inlet. A drive assembly is provided on the body 1, and a ventilation fan assembly is provided on the drive assembly. The ventilation fan assembly is provided with an air inlet pipe assembly. The ventilation fan assembly includes: a fan housing 19, which is a ring structure. A bracket 6 is provided inside the fan housing 19. A motor 7 is installed on the bracket 6 by bolts. A fan blade 8 is provided at the output end of the motor 7. A sealing groove is provided above the fan housing 19. An air inlet pipe assembly is provided above the fan housing 19.
[0031] To address the issue of difficulty in adjusting the direction of the air inlet duct assembly during installation; such as Figure 4 , Figure 5 As shown, the air inlet pipe assembly includes: a rotating seat 9, which is an annular structure. The rotating seat 9 is bolted to the top of the fan housing 19. A rotating groove is provided on the top of the rotating seat 9, and a sealing ring 10 is provided at the bottom of the rotating seat 9. The sealing ring 10 is installed in the sealing groove of the fan housing 19.
[0032] By setting the sealing ring 10, the sealing performance of the fixing device can be increased, preventing dust from entering the device from narrow spaces.
[0033] To solve the problem of rotation of the air intake duct assembly; such as Figure 5 As shown, the air inlet pipe assembly also includes a bearing 11, which is installed in the rotating groove of the rotating seat 9.
[0034] The air inlet duct assembly can be rotated via bearing 11, making it easy to adjust the direction of the air inlet duct without the need for additional connecting pipes.
[0035] like Figure 3 , Figure 4 , Figure 6 As shown, the air inlet pipe assembly also includes a telescopic seat 12, which has a plurality of mounting holes. The mounting holes are narrower at the bottom and wider at the top. Telescopic rods 14 are installed in the mounting holes. There are a plurality of telescopic rods 14, and the telescopic rods 14 have circular protrusions that are slightly larger than the mounting holes at the top and bottom.
[0036] The problem of enabling air intake duct assemblies to be installed in spaces of various widths; such as Figure 6 As shown, the air inlet pipe assembly also includes a spring 15. The spring 15 is provided below the circular protrusion structure of the telescopic rod 14 and is installed in the mounting hole of the telescopic seat 12.
[0037] The height of the air intake duct assembly can be adjusted by the spring 15. When facing a narrow space, the air intake duct assembly is squeezed, which causes the telescopic rod 14 to squeeze the spring, so that the air intake duct assembly can be installed in spaces of different widths.
[0038] To address the issue of dust entering the telescopic base 12; such as... Figure 3 , Figure 6 As shown, the air inlet pipe assembly also includes a platform-shaped pipe 16, which is mounted on the telescopic rod 14. An elastic cloth 13 is provided below the platform-shaped pipe 16, and the other end of the elastic cloth 13 is connected to the telescopic seat 12. A square pipe 17 is provided above the platform-shaped pipe 16.
[0039] To solve the problem of how to install the air inlet duct assembly and the ventilation fan assembly on the air inlet of the unit 1; such as Figure 1 , Figure 2 , Figure 3 As shown, the drive assembly includes a slide rail 2, which is installed on one side of the sliding groove of the body 1. A screw 18 is rotatably installed in the slide rail 2. A handle 3 is provided on one side of the screw 18. A sliding member 4 is provided on the screw 18. An air inlet is provided on the sliding member 4. An air exchange fan assembly is installed on the air inlet.
[0040] Assemble the ventilation fan assembly and the air intake pipe assembly, adjust the pipe angle of the air intake pipe assembly, and then move the air intake fan assembly to the air intake of the machine body by rotating the handle 3 and the sliding part 4. A limit block is set on one side of the air intake. When the sliding part 4 moves to the limit block, stop rotating the handle 3. Drive the motor 7 through the control module to make the air intake fan assembly blow air into the machine body 1.
[0041] To address the issue of making it easier for fixed devices to move in confined spaces; such as Figure 1 , Figure 2 As shown, the fixing device also includes pulleys 5, and several pulleys 5 are provided. The pulleys 5 are installed on both sides of the square tube 17 by a mounting bracket.
[0042] The pulley 5 can reduce wear on the intake pipe assembly in confined spaces and also reduce friction.
[0043] Working principle: The ventilation fan assembly and the air intake pipe assembly are installed together by bolts. The ventilation fan assembly is mounted on the sliding part 4. The angle of the air intake pipe assembly is adjusted. The air intake fan assembly is moved to the air intake of the body 1 using the handle 3. Then, the control module drives the motor 7 to supply air to the body 1.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fixing device for installing the air outlet of a duct ventilation fan, comprising a body (1), characterized in that, The body (1) is provided with a sliding groove, an air inlet is provided on the groove, a limit block is provided on one side of the air inlet, a drive assembly is provided on the body (1), a ventilation fan assembly is provided on the drive assembly, and an air inlet pipe assembly is provided on the ventilation fan assembly. The ventilation fan assembly includes: a fan housing (19), the fan housing (19) is a ring structure, a bracket (6) is provided inside the fan housing (19), a motor (7) is installed on the bracket (6) by bolts, a fan blade (8) is provided at the output end of the motor (7), a sealing groove is provided above the fan housing (19), and an air inlet pipe assembly is provided above the fan housing (19).
2. The fixing device for installing the air outlet of a duct ventilation fan according to claim 1, characterized in that, The air inlet pipe assembly includes: a rotating seat (9), which is an annular structure. The rotating seat (9) is bolted to the top of the fan housing (19). A rotating groove is provided on the top of the rotating seat (9). A sealing ring (10) is provided at the bottom of the rotating seat (9). The sealing ring (10) is installed in the sealing groove of the fan housing (19).
3. The fixing device for installing the air outlet of a duct ventilation fan according to claim 2, characterized in that, The air inlet pipe assembly also includes a bearing (11), which is installed in the rotating groove of the rotating seat (9).
4. The fixing device for installing the air outlet of a duct ventilation fan according to claim 3, characterized in that, The air inlet pipe assembly also includes a telescopic seat (12), which has several mounting holes. The mounting holes are narrow at the bottom and wide at the top. A telescopic rod (14) is installed inside the mounting hole. Several telescopic rods (14) are installed. The telescopic rods (14) have circular protrusions that are slightly larger than the mounting holes at the top and bottom.
5. A fixing device for installing the air outlet of a duct ventilation fan according to claim 4, characterized in that, The air inlet pipe assembly also includes a spring (15), which is provided below the circular protrusion structure of the telescopic rod (14) and is installed in the mounting hole of the telescopic seat (12).
6. A fixing device for installing the air outlet of a duct ventilation fan according to claim 5, characterized in that, The air inlet pipe assembly also includes a platform-shaped pipe (16), which is mounted on a telescopic rod (14). An elastic cloth (13) is provided below the platform-shaped pipe (16), and the other end of the elastic cloth (13) is connected to a telescopic seat (12). A square pipe (17) is provided above the platform-shaped pipe (16).
7. A fixing device for installing the air outlet of a duct ventilation fan according to claim 6, characterized in that, The drive assembly includes a slide rail (2), which is installed on one side of the sliding groove of the body (1). A screw (18) is rotatably installed in the slide rail (2). A handle (3) is provided on one side of the screw (18). A sliding member (4) is provided on the screw (18). An air inlet is provided on the sliding member (4). An air exchange fan assembly is installed on the air inlet.
8. A fixing device for installing the air outlet of a duct ventilation fan according to claim 7, characterized in that, The fixing device also includes pulleys (5), and several pulleys (5) are provided. The pulleys (5) are installed on both sides of the square tube (17) by a mounting bracket.
Citation Information
Patent Citations
Air conditioner vent fixing device
CN207279916U