Movable blade axial flow fan convenient to disassemble and maintain

Abstract

The utility model relates to the technical field of fans, in particular to a moving blade axial flow fan convenient to disassemble and maintain, which comprises a moving blade axial flow fan body, two support frames are fixed at the bottom of the moving blade axial flow fan body, and mounting frames are fixed on the two support frames; the connecting frame is arranged on the two mounting frames; the flexibility of the movable blade axial flow fan body in the using process is improved; through the arrangement of the adjusting assembly, the four supporting legs can be turned over easily and are convenient to store or unfold, when the movable blade axial flow fan body needs to be moved, the supporting legs are unfolded and matched with the universal self-locking wheels, the fan can be moved easily, the portability of the fan is remarkably improved, the fan is convenient to use in a temporary place, and the practicability of the fan is improved. When the fan needs to be fixed to a certain position for long-term use, the supporting legs only need to be stored, the connecting frame is disassembled through the quick disassembling assembly, then stable supporting of the fan can be achieved through the supporting frame, and various different use requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a moving blade axial flow fan that is easy to disassemble and maintain. Background Technology

[0002] There are two types of adjustable blades for axial flow fans: adjustable stationary blades and adjustable moving blades. Adjustable stationary blades allow for static adjustment of the blade angle after the fan has stopped running; adjustable moving blades allow for dynamic adjustment of the blade angle while the fan is running.

[0003] Current adjustable-blade axial flow fans are bulky. During installation, although hoisting or other complex methods can be used to precisely place the fan in the predetermined position, which may require multiple people to work together, in certain work scenarios, such as the construction of temporary ventilation systems, ensuring air circulation at construction sites, or emergency rescue ventilation, the fan position may need to be frequently adjusted according to the progress of the work or changes in the site conditions. Such frequent position adjustments, if made by hoisting, are not only time-consuming and labor-intensive, but also increase the difficulty of operation and safety risks. Therefore, we propose an adjustable-blade axial flow fan that is easy to disassemble and maintain. Utility Model Content

[0004] One of the technical problems this application aims to solve is: how to design a moving blade axial flow fan suitable for temporary locations, and ensure that it can be easily fixed for long-term use in a specific location.

[0005] To solve the above-mentioned technical problems, this application provides a moving blade axial flow fan that is easy to disassemble and maintain, including a moving blade axial flow fan body, two support frames are fixed at the bottom of the moving blade axial flow fan body, and mounting brackets are fixed on the two support frames;

[0006] A connecting frame is provided on two mounting frames. The bottom of the connecting frame is provided with four support legs, and each connecting frame is fixed with a universal self-locking wheel.

[0007] The connecting frame is provided with quick-release components on both sides for quickly attaching and detaching the connecting frame onto the two mounting brackets;

[0008] Each of the four legs is equipped with an adjustment component for driving the four legs to rotate.

[0009] In some embodiments, the adjustment assembly includes a fixing member fixed to the support leg, a U-shaped movable frame slidably connected to the fixing member, the U-shaped movable frame having an internal threaded hole, a bolt mounted on the U-shaped movable frame through the internal threaded hole, and a spring also mounted on the U-shaped movable frame;

[0010] The fixing member is provided with a guide hole for matching the bolt, and one side of the fixing member is provided with a mounting hole for matching the spring.

[0011] The adjusting assembly further comprises a mounting plate fixed at the bottom of the connecting frame, a positioning plate is fixed at the bottom of the mounting plate, a rotating shaft is arranged on the positioning plate, the U-shaped moving frame is connected with the positioning plate through the rotating shaft, an arc-shaped hole is arranged on the positioning plate, and a receiving hole and an unfolding hole are arranged at two ends of the arc-shaped hole respectively.

[0012] In some embodiments, the quick release assembly comprises two second square avoiding holes arranged on the mounting frame, two fixing plates are fixed at the bottom of the connecting frame, two bidirectional screws are rotatably connected to the two fixing plates, one end of each bidirectional screw penetrates through the fixing plate and is fixed with a hand rotating disc, and two moving plates are threadedly installed on the bidirectional screws.

[0013] In some embodiments, the top of each mounting frame is fixed with a supporting plate.

[0014] In some embodiments, the length of the guide hole is greater than the diameter of the bolt.

[0015] In some embodiments, the length of the supporting leg is greater than the height of the supporting frame.

[0016] In some embodiments, one end of each bidirectional screw penetrates through one of the fixing plates and is fixed with a belt pulley, and the two belt pulleys are connected through a belt.

[0017] The utility model at least has following beneficial effects:

[0018] 1. The quick release assembly is arranged, the connecting frame can be quickly assembled and disassembled on the two mounting frames, the mounting and disassembling time is greatly saved, the mounting and disassembling efficiency is improved, the moving or fixing of the moving blade axial flow fan body is facilitated, and the flexibility of the moving blade axial flow fan body in use is improved.

[0019] 2、By adjusting the setting of the assembly, the four legs can be easily turned over, facilitating storage or expansion, when the moving blade axial flow fan body needs to be moved, the legs are expanded, and the universal self-locking wheel can be easily moved, significantly improving the portability, which makes the fan convenient to use in temporary places, and when the fan needs to be fixed in a place for long-term use, only the legs need to be stored, and the quick release assembly is disassembled, and then the support frame can be used to realize stable support of the fan, meeting various different use requirements;

[0020] 3、By setting two pulleys and a belt, synchronous rotation of the two bidirectional lead screws can be realized, so that the two groups of L-shaped limiting plates can be synchronously moved relative to each other or moved away from each other, further simplifying the operation steps and improving the installation and disassembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the utility model;

[0022] Figure 2 It is a storage structure schematic view of the utility model leg;

[0023] Figure 3 It is an exploded structure schematic view of the utility model leg;

[0024] Figure 4 It is an A place enlarged structure schematic view of the utility model; Figure 2

[0025] Figure 5 It is a B place enlarged structure schematic view of the utility model; Figure 3

[0026] Figure 6 It is a C place enlarged structure schematic view of the utility model; Figure 5

[0027] Figure 7 It is a pulley mounting structure schematic view of the utility model;

[0028] Figure 8 It is a D place enlarged structure schematic view of the utility model; Figure 7

[0029] ​​​​In the figure: 1, the moving blade axial flow fan body; 2, support frame; 3, mounting frame; 4, connecting frame; 5, support plate; 6, mounting piece; 7, support leg; 8, universal self-locking wheel; 9, pulley; 100, quick release assembly; 101, fixed plate; 102, bidirectional screw; 103, manual turntable; 104, moving plate; 105, L-shaped limiting plate; 106, first square escape hole; 107, second square escape hole; 200, adjusting assembly; 201, positioning plate; 202, arc-shaped hole; 203, storage hole; 204, fixing piece; 205, guide hole; 206, U-shaped moving frame; 207, internally threaded hole; 208, bolt; 209, spring; 210, mounting hole; 211, unfolding hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Embodiment 1

[0032] Please refer to Figures 1-6 The present application provides a technical solution: a moving blade axial flow fan convenient to disassemble and maintain, comprising a moving blade axial flow fan body 1, two support frames 2 are fixed at the bottom of the moving blade axial flow fan body 1, and a mounting frame 3 is fixed on each of the two support frames 2.

[0033] A connecting frame 4 is arranged on the two mounting frames 3, and four support legs 7 are arranged at the bottom of the connecting frame 4, and a universal self-locking wheel 8 is fixed on the connecting frame 4.

[0034] Quick release assemblies 100 are arranged on the two sides of the connecting frame 4, which are used to quickly disassemble and assemble the connecting frame 4 on the two mounting frames 3.

[0035] Adjusting assemblies 200 are arranged on the four support legs 7, which are used to drive the four support legs 7 to overturn.

[0036] The adjusting assembly 200 comprises a fixing piece 204 fixed on the support leg 7, a U-shaped moving frame 206 slidably connected on the fixing piece 204, an internally threaded hole 207 arranged on the U-shaped moving frame 206, a bolt 208 installed through the internally threaded hole 207, and a spring 209 installed on the U-shaped moving frame 206.

[0037] The fixing member 204 is provided with a guide hole 205 for cooperating with the bolt 208, and one side of the fixing member 204 is also provided with a mounting hole 210 for cooperating with the spring 209;

[0038] The adjusting assembly 200 further comprises a mounting plate 6 fixed at the bottom of the connecting frame 4, the bottom of the mounting plate 6 is fixed with a positioning plate 201, the positioning plate 201 is provided with a rotating shaft, a U-shaped moving frame 206 is connected with the positioning plate 201 through the rotating shaft, the positioning plate 201 is provided with an arc-shaped hole 202, two ends of the arc-shaped hole 202 are respectively provided with a receiving hole 203 and an unfolding hole 211 for cooperating with the bolt 208, and the receiving hole 203, the unfolding hole 211 and the arc-shaped hole 202 are communicated.

[0039] The quick release assembly 100 comprises two second square avoiding holes 107 provided on the mounting frame 3, the bottom of the connecting frame 4 is fixed with two fixing plates 101, the two fixing plates 101 are rotatably connected with a bidirectional screw rod 102, one end of the bidirectional screw rod 102 penetrates through the fixing plate 101 and is fixed with a hand rotating disc 103, the bidirectional screw rod 102 is further provided with two moving plates 104 through screw threads, the top of each of the two moving plates 104 is fixed with an L-shaped limiting plate 105, the connecting frame 4 is further provided with two first square avoiding holes 106 for cooperating with the second square avoiding holes 107, and the top of the L-shaped limiting plate 105 extends out of the first square avoiding hole 106.

[0040] The top of each of the two mounting frames 3 is fixed with a supporting plate 5, which enhances the stability of the mounting frame 3 and makes it not easy to bend or deform.

[0041] The length of the guide hole 205 is greater than the diameter of the bolt 208, so that the bolt 208 can slide in the guide hole 205.

[0042] The length of the supporting leg 7 is greater than the height of the supporting frame 2, the supporting leg 7 can stably support the moving vane axial flow fan body 1 on the ground, and the universal self-locking wheel 8 is convenient to move or fix, which increases the flexibility and stability of the moving vane axial flow fan body 1 during use.

[0043] When it is needed to install the connecting frame 4 on two mounting frames 3, the supporting leg 7 can be first stored, and the operation steps are as follows: the U-shaped moving frame 206 is pushed to slide on the fixing piece 204, since one end of the spring 209 is fixed on the U-shaped moving frame 206 and the other end abuts against the inner wall of the mounting hole 210, when the outer wall of the bolt 208 moves from the unfolded hole 211 to the inside of the arc-shaped hole 202, the spring 209 will be contracted, at this time, the U-shaped moving frame 206 can be rotated, when the bolt 208 moves along the arc-shaped hole 202 to the storage hole 203, the spring 209 will push the U-shaped moving frame 206 to automatically reset, move the bolt 208 into the storage hole 203, and limit the bolt 208 to prevent it from loosening or falling off, so as to ensure the stability of the supporting leg 7 in the storage state;

[0044] Next, the connecting frame 4 is attached on the mounting frame 3, the first square avoiding hole 106 is aligned with the second square avoiding hole 107, and the top end position of the L-shaped limiting plate 105 passes through the second square avoiding hole 107, at this time, the top of the connecting frame 4 is tightly attached on the bottom of the two mounting frames 3, then the manual rotating disc 103 is rotated clockwise, the manual rotating disc 103 drives the bidirectional screw rod 102 to rotate, the bidirectional screw rod 102 drives the two moving plates 104 to relatively move, the two moving plates 104 relatively moving drives the two L-shaped limiting plates 105 to relatively move, until the top of the two L-shaped limiting plates 105 is tightly attached on the top of the mounting frame 3, at this time, the quick installation of the connecting frame 4 is completed, the operation is simple and convenient, and the installation efficiency is improved, when it is needed to move the moving blade axial flow fan body 1, the moving blade axial flow fan body 1 is first lifted, then the U-shaped moving frame 206 is pushed, the bolt 208 is moved out of the storage hole 203 and moves along the arc-shaped hole 202 to the unfolded hole 211, the supporting leg 7 can be unfolded, at the same time, the universal self-locking wheel 8 abuts against the ground, the moving blade axial flow fan body 1 can be easily moved through the universal self-locking wheel 8, the portability of the moving blade axial flow fan body 1 is improved, so as to facilitate the use in temporary places;

[0045] When it is needed to fix the moving blade axial flow fan body 1 at a place for use, the connecting frame 4 can be detached from the two mounting frames 3, only the manual rotating disc 103 is counterclockwise rotated, the manual rotating disc 103 drives the bidirectional screw rod 102 to rotate, the bidirectional screw rod 102 drives the two moving plates 104 to move away from each other, the two moving plates 104 move away from each other drives the two L-shaped limiting plates 105 to move away from each other, until the top of the two L-shaped limiting plates 105 is completely separated from the second square avoiding hole 107, at this time, the quick detachment of the connecting frame 4 is completed, the detachment time is greatly saved, and the detachment efficiency is improved, then the moving blade axial flow fan body 1 is fixed at a place for use by using the two supporting frames 2, which is not only convenient;

[0046] Through the adjusting assembly 200, the four supporting legs 7 can be flipped to facilitate the storage or unfolding of the supporting legs 7, and when the moving blade axial flow fan body 1 needs to be moved, the supporting legs 7 can be unfolded, and the universal self-locking wheel 8 can be used to easily move the moving blade axial flow fan body 1, thereby increasing the portability of the moving blade axial flow fan body 1 and facilitating the use of the moving blade axial flow fan body 1 in temporary places. Meanwhile, the quick release assembly 100 can also be used to detach the connecting frame 4 from the two mounting frames 3, so as to facilitate the long-time use of the moving blade axial flow fan body 1 in a certain place.

[0047] Embodiment 2

[0048] Please refer to Figures 7-8 The utility model provides a technical scheme:

[0049] Different from embodiment 1 is that;

[0050] One end of the two bidirectional lead screws 102 passes through one of the fixed plates 101 and is fixed with a belt pulley 9, and the two belt pulleys 9 are connected through a belt;

[0051] Through the two belt pulleys 9 and the belt, the synchronous rotation of the two bidirectional lead screws 102 can be realized. When one of the manual turntables 103 is rotated clockwise, the manual turntable 103 will drive the bidirectional lead screw 102 fixedly connected thereto to rotate, and the rotation of the bidirectional lead screw 102 will drive the other bidirectional lead screw 102 to rotate synchronously through the belt, so that the two moving plates 104 can synchronously move relatively, and the two L-shaped limiting plates 105 can also synchronously move relatively, until the top of the two L-shaped limiting plates 105 is tightly fitted with the top of the mounting frame 3, and the quick installation of the connecting frame 4 is completed. Similarly, when one of the manual turntables 103 is rotated counterclockwise, the quick disassembly of the connecting frame 4 can also be realized. Such a design not only simplifies the operation steps, but also improves the installation and disassembly efficiency, so that the moving blade axial flow fan body 1 is more flexible and convenient during use.

[0052] It should be noted that, in this document, the terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0053] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A movable-blade axial fan which is easy to disassemble for maintenance, comprising a movable-blade axial fan body (1), characterized in that: The bottom of the moving blade axial fan body (1) is fixed with two support frames (2), and the two support frames (2) are both fixed with mounting frames (3); The connecting frame (4) is arranged on the two mounting frames (3), the bottom of the connecting frame (4) is provided with four supporting legs (7), and the connecting frame (4) is both fixed with universal self-locking wheels (8); The two sides of the connecting frame (4) are provided with quick release assemblies (100) for quickly disassembling the connecting frame (4) on the two mounting frames (3); The four supporting legs (7) are both provided with adjusting assemblies (200) for driving the four supporting legs (7) to overturn.

2. The bladed axial fan for easy disassembly and maintenance according to claim 1, characterized in that: The adjusting assembly (200) comprises a fixing piece (204) fixed on the supporting leg (7), a U-shaped moving frame (206) slidably connected on the fixing piece (204), an internally threaded hole (207) arranged on the U-shaped moving frame (206), a mounting bolt (208) installed through the internally threaded hole (207), and a spring (209) further installed on the U-shaped moving frame (206). A guide hole (205) is arranged on the fixing piece (204) for cooperating with the bolt (208), and a mounting hole (210) is further arranged on one side of the fixing piece (204) for cooperating with the spring (209); The adjusting assembly (200) further comprises a mounting plate (6) fixed on the bottom of the connecting frame (4), a positioning plate (201) fixed on the bottom of the mounting plate (6), a rotating shaft arranged on the positioning plate (201), the U-shaped moving frame (206) connected with the positioning plate (201) through the rotating shaft, an arc-shaped hole (202) arranged on the positioning plate (201), and a receiving hole (203) and an unfolding hole (211) respectively arranged at two ends of the arc-shaped hole (202) for cooperating with the bolt (208).

3. The easy-to-disassemble-and-repair propeller axial fan according to claim 1, characterized in that: The quick release assembly (100) comprises two second square avoiding holes (107) arranged on the mounting frame (3), two fixing plates (101) fixed on the bottom of the connecting frame (4), a bidirectional screw rod (102) rotatably connected on the two fixing plates (101), one end of the bidirectional screw rod (102) penetrating through the fixing plate (101) and fixed with a manual rotary disc (103), two moving plates (104) threadedly installed on the bidirectional screw rod (102), L-shaped limiting plates (105) fixed on the top of the two moving plates (104), two first square avoiding holes (106) arranged on the connecting frame (4) and matched with the second square avoiding holes (107), and the top of the L-shaped limiting plate (105) extending out of the first square avoiding hole (106).

4. The easy-to-disassemble-and-repair propeller axial fan according to claim 1, characterized in that: The top of the two mounting frames (3) is fixed with a supporting plate (5).

5. The easy-to-disassemble-and-repair propeller axial fan according to claim 2, characterized in that: The length of the guide hole (205) is greater than the diameter of the bolt (208).

6. The bladed axial fan for easy disassembly and maintenance according to claim 5, characterized in that: The length of the leg (7) is greater than the height of the support frame (2).

7. The easy-to-disassemble-and-repair propeller axial fan according to claim 3, characterized in that: One end of two bidirectional screw rods (102) penetrates through one of the fixed plates (101) and is fixed with a belt pulley (9), and two belt pulleys (9) are connected through a belt.

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