A propeller fan which is easy to install

Abstract

The utility model discloses a kind of axial flow fans convenient to install, belong to axial flow fan field, including annular frame and fixed seat, the fixed seat is fixedly installed on wall, annular frame is fixedly installed with brushless motor in, the output shaft of the brushless motor is fixedly installed with plastic fan blade, the front end of annular frame is provided with metal protective net, two groups of first sliding slots are symmetrically opened in the fixed seat, four groups of first sliding slots are slidably installed with movable buckle in;Through the movable buckle of sliding installation in fixed seat and the L-shaped joint structure of annular frame, user can complete quick assembly and disassembly without the aid of tools, only need to push annular frame into fixed seat when operating, movable buckle is automatically slid in first sliding slot To position, cooperate the rack meshing structure of reset spring drive in limiting component, can realize single-hand operation to complete positioning locking, by adjusting component drive abutting plate longitudinal movement, make abutting plate and annular frame form bidirectional clamping.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fan technology, specifically an axial flow fan that is easy to install. Background Technology

[0002] When an axial fan is working, the blades push the air to flow in the same direction as the axis, hence the name axial fan. The traditional method of fixing axial fans with bolts is cumbersome. Tightening the bolts requires auxiliary tools, and improper operation during the installation process can easily cause the bolts to fall off or be lost, resulting in time wasted searching and affecting the convenience of axial fan installation, which is not conducive to improving work efficiency.

[0003] Therefore, this invention provides an axial flow fan that is easy to install, in order to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved This invention provides an axial flow fan that is easy to install, aiming to solve the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: It includes an annular frame and a fixed base. The fixed base is fixedly installed on a wall. A brushless motor is fixedly installed inside the annular frame. Plastic fan blades are fixedly installed on the output shaft of the brushless motor. A metal protective mesh is provided at the front end of the annular frame. Two sets of first sliding grooves are symmetrically opened vertically inside the fixed base. Movable buckles are slidably installed in each of the four sets of first sliding grooves. Limiting components are provided on the four sets of first sliding grooves and the four sets of movable buckles. An adjustment component is provided inside the fixed base.

[0006] As a preferred technical solution of this application, the opposite ends of the four sets of movable buckles are all L-shaped, and the opposite ends of the four sets of movable buckles are engaged with the upper and lower ends of the annular frame.

[0007] As a preferred technical solution of this application, the limiting component includes a fixing block, which is fixedly installed on the front side of the movable buckle. A pull rod is inserted into the fixing block, and a return spring is sleeved on the pull rod. A limiting plate is fixedly installed at the upper end of the pull rod. A rack is provided on the inner wall of the first sliding groove, and the limiting plate meshes with the side of the rack that is in contact with it.

[0008] As a preferred technical solution of this application, grooves are provided on both the left and right sides of the pull rod, and the pull rod is slidably inserted into the fixing block.

[0009] As a preferred technical solution of this application, the adjustment component includes four sets of second sliding grooves, which are symmetrically opened in the fixed seat. Each of the four sets of second sliding grooves is rotatably installed with an adjustment screw. The fixed seat is provided with abutment plates at both the upper and lower ends. The left and right ends of the two sets of abutment plates are respectively connected to the four sets of adjustment screws by threads.

[0010] As a preferred technical solution of this application, anti-slip silicone pads are glued to the front sides of the two sets of abutment plates and the sides of the four sets of movable buckles that are in contact with the annular frame.

[0011] (III) Beneficial Effects With the movable buckle slidably installed in the fixed seat and the L-shaped snap-fit ​​structure of the ring frame, the user can quickly assemble and disassemble without the aid of tools. During operation, simply push the ring frame into the fixed seat, and the movable buckle will automatically slide into place in the first sliding groove. With the rack and pinion meshing structure driven by the reset spring in the limit component, positioning and locking can be completed by one hand. By adjusting the component to drive the abutment plate to move longitudinally, the abutment plate and the ring frame form a bidirectional clamping. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an axial flow fan that is easy to install; Figure 2 A front view of an easily installed axial fan, showing a split-section design. Figure 3 This is a right-side structural cross-sectional view of an axial flow fan that is easy to install. Figure 4 A schematic diagram of the left-side cross-sectional structure of an axial flow fan that is easy to install; Figure 5 for Figure 3 A magnified structural diagram at point A; Figure 6 for Figure 4 A magnified structural diagram at point B.

[0013] In the picture: 1. Ring frame; 2. Brushless motor; 3. Plastic fan blades; 4. Metal protective mesh; 5. Fixing base; 6. First sliding groove; 7. Movable buckle; 8. Fixing block; 9. Pull rod; 10. Return spring; 11. Limiting plate; 12. Rack; 13. Second sliding groove; 14. Adjusting screw; 15. Abutment plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides an axial flow fan that is easy to install, such as... Figure 1-6 As shown, the easy-to-install axial fan includes an annular frame 1 and a fixed base 5. The fixed base 5 is fixedly installed on the wall. A brushless motor 2 is fixedly installed inside the annular frame 1. Plastic fan blades 3 are fixedly installed on the output shaft of the brushless motor 2. A metal protective mesh 4 is provided at the front end of the annular frame 1. Two sets of first sliding grooves 6 are symmetrically opened in the fixed base 5. Movable buckles 7 are slidably installed in each of the four sets of first sliding grooves 6. Limiting components are provided on the four sets of first sliding grooves 6 and the four sets of movable buckles 7. An adjustment component is provided inside the fixed base 5.

[0016] An axial flow fan consisting of a ring frame 1, a brushless motor 2, plastic fan blades 3, and a metal protective mesh 4 is installed in a fixed base 5. When the ring frame 1 is pushed into the fixed base 5 to a predetermined position, the movable buckle 7 automatically slides to a position where it engages with the upper and lower ends of the ring frame 1 under the guidance of the first sliding groove 6. At this time, the limiting component limits and fixes the movable buckle 7 to prevent it from loosening or falling off during use. At the same time, the user can adjust the component to form a bidirectional clamp with the rear side of the ring frame 1 to further enhance the stability of the axial flow fan installation.

[0017] The opposite ends of the four sets of movable buckles 7 are all L-shaped, and the opposite ends of the four sets of movable buckles 7 are engaged with the upper and lower ends of the ring frame 1.

[0018] The L-shaped snap-fit ​​structure design allows the ring frame 1 to naturally guide the movable snap-fit ​​7 to complete the snap-fit ​​action as it is pushed into the fixed seat 5, achieving a stable connection without the need for precise alignment. This not only simplifies the installation process but also avoids the loosening problems that may occur with traditional bolt connections through the mechanical snap-fit ​​design, making it especially suitable for maintenance scenarios that require frequent disassembly and assembly.

[0019] The limiting component includes a fixing block 8, which is fixedly installed on the front side of the movable buckle 7. A pull rod 9 is inserted into the fixing block 8, and a return spring 10 is sleeved on the pull rod 9. A limiting plate 11 is fixedly installed on the upper end of the pull rod 9. A rack 12 is provided on the inner wall of the first sliding groove 6, and the limiting plate 11 meshes with the side of the rack 12 that is in contact with it.

[0020] When the movable buckle 7 slides to the position where it engages with the annular frame 1, the return spring 10 drives the pull rod 9 to move upward, so that the limiting plate 11 and the rack 12 are tightly engaged, thereby preventing the movable buckle 7 from sliding in the reverse direction in the first sliding groove 6. The self-locking limiting structure not only ensures the reliability of the engagement, but also allows the limiting plate 11 to disengage from the rack 12 by pulling the pull rod 9 downward, thus achieving quick unlocking and providing convenience for subsequent disassembly.

[0021] The pull rod 9 has grooves on both the left and right sides, and the pull rod 9 is slidably inserted into the fixing block 8.

[0022] The grooves on both sides of the pull rod 9 form a precise guiding fit with the inner wall of the fixing block 8, which not only ensures the stability of the pull rod 9 when sliding in the fixing block 8, but also effectively prevents the pull rod 9 from deflecting or getting stuck when under force, ensuring the reliability and durability of the limit component during long-term use, and maintaining a stable limiting effect even in the face of frequent assembly and disassembly operations.

[0023] The adjustment assembly includes four sets of second sliding grooves 13, which are symmetrically arranged in the upper and lower parts of the fixed base 5. Adjustment screws 14 are rotatably installed in each of the four sets of second sliding grooves 13. Abutment plates 15 are provided at both the upper and lower ends of the fixed base 5. The left and right ends of the two sets of abutment plates 15 are respectively connected to the four sets of adjustment screws 14 by threads.

[0024] The user can drive the abutment plate 15 to move longitudinally along the second sliding groove 13 by rotating the adjusting screw 14. When the abutment plate 15 contacts the rear side of the annular frame 1, a two-way clamping structure is formed, which not only enhances the stability of the axial fan installation, but also adapts to annular frames 1 of different thicknesses. By adjusting the synchronous rotation of the four sets of adjusting screws 14, it can be ensured that the abutment plate 15 remains horizontal during the movement, avoiding installation deviation caused by uneven force on one side.

[0025] Anti-slip silicone pads are glued to the front sides of the two sets of abutment plates 15 and the sides of the four sets of movable buckles 7 that are attached to the annular frame 1.

[0026] The anti-slip silicone pad significantly increases the friction coefficient of the contact surface. When the abutment plate 15 contacts the rear side of the annular frame 1, the anti-slip silicone pad fills the micro-contact gap through elastic deformation, forming a stable static friction force. This effectively prevents the axial fan from displacing due to vibration during operation. At the same time, the anti-slip silicone pad at the movable buckle 7 can prevent scratches on the surface of the annular frame 1 during snapping. The dual anti-slip design not only ensures the reliability of installation but also extends the service life of the equipment, making it particularly suitable for industrial application scenarios with strong vibration environments.

[0027] Working principle: When installing an axial fan, the axial fan, consisting of an annular frame 1, a brushless motor 2, plastic fan blades 3, and a metal protective mesh 4, is pushed into the installation area of ​​the fixed base 5. At this time, the edge of the annular frame 1 engages with the L-shaped end of the movable latch 7. When the annular frame 1 is pushed to the predetermined depth, the return spring 10 drives the pull rod 9 to move upward, so that the limiting plate 11 is tightly engaged with the rack 12, thereby preventing the movable latch 7 from sliding backward in the first sliding groove 6. The self-locking limiting structure not only ensures the reliability of the engagement, but also allows the limiting plate 11 to disengage from the rack 12 by pulling the pull rod 9 downward. The system can be quickly unlocked to facilitate subsequent disassembly and complete axial positioning. At this point, the user can drive the abutment plate 15 to move along the second sliding groove 13 towards the annular frame 1 by rotating the adjusting screw 14. When the anti-slip silicone pad on the front side of the abutment plate 15 is tightly attached to the rear side of the annular frame 1, a stable structure with bidirectional clamping is formed. The entire installation process can be completed without the use of any tools, simply through the automatic cooperation of the mechanical structure. When disassembly is required, the user only needs to pull down the pull rod 9 to disengage the limit plate 11 from the rack 12, and at the same time rotate the adjusting screw 14 in the opposite direction to retract the abutment plate 15, so that the axial fan can be easily removed.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An easily installable axial fan, comprising an annular frame (1) and a mounting base (5), the mounting base (5) being fixedly installed on a wall, characterized in that: A brushless motor (2) is fixedly installed inside the annular frame (1). A plastic fan blade (3) is fixedly installed on the output shaft of the brushless motor (2). A metal protective net (4) is provided at the front end of the annular frame (1). Two sets of first sliding grooves (6) are symmetrically opened in the upper and lower parts of the fixed seat (5). Movable buckles (7) are slidably installed in each of the four sets of first sliding grooves (6). Limiting components are provided on the four sets of first sliding grooves (6) and the four sets of movable buckles (7). An adjustment component is provided inside the fixed seat (5).

2. The axial flow fan that is easy to install according to claim 1, characterized in that: The four sets of movable buckles (7) are all L-shaped at opposite ends, and the opposite ends of the four sets of movable buckles (7) are engaged with the upper and lower ends of the ring frame (1).

3. The axial flow fan that is easy to install according to claim 1, characterized in that: The limiting component includes a fixing block (8), which is fixedly installed on the front side of the movable buckle (7). A pull rod (9) is inserted into the fixing block (8), and a return spring (10) is sleeved on the pull rod (9). A limiting plate (11) is fixedly installed on the upper end of the pull rod (9). A rack (12) is provided on the inner wall of the first sliding groove (6). The limiting plate (11) meshes with the side of the rack (12) that is in contact with the rack (12).

4. An axial flow fan that is easy to install according to claim 3, characterized in that: The pull rod (9) has grooves on both the left and right sides, and the pull rod (9) is slidably inserted into the fixing block (8).

5. An axial flow fan that is easy to install according to claim 1, characterized in that: The adjustment assembly includes four sets of second sliding grooves (13), which are symmetrically arranged in the fixed seat (5). Each of the four sets of second sliding grooves (13) is rotatably installed with an adjustment screw (14). The fixed seat (5) is provided with abutment plates (15) at both ends. The left and right ends of the two sets of abutment plates (15) are respectively connected to the four sets of adjustment screws (14) by threads.

6. An axial flow fan that is easy to install according to claim 5, characterized in that: Anti-slip silicone pads are glued to the front side of the two sets of abutment plates (15) and the side of the four sets of movable buckles (7) that are attached to the annular frame (1).

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