Fan capable of preventing blades from falling

Abstract

The utility model provides a fan with anti-falling blades, which belongs to the technical field of fans and comprises a turntable, a group of arc-shaped plates are uniformly arranged on the periphery of the turntable, each arc-shaped plate is detachably connected with the turntable through two bolt components, the inner side wall of each arc-shaped plate is fixedly connected with an elastic clamping piece, and the elastic clamping pieces are fixedly connected with the turntable. The outer side walls of the arc-shaped plates are fixedly connected with bearing blocks, the bearing blocks are detachably connected with fan blades through screws, the fan blades are provided with a first anti-falling frame and a second anti-falling frame in a clamped mode, and the outer ends of the first anti-falling frame and the second anti-falling frame are fixedly connected with threaded columns. Through the arrangement of the first anti-falling frame, the second anti-falling frame, the threaded column, the connecting piece, the first nut, the mounting head, the second nut, the connecting rod and the connecting block, the fan blades are limited and protected, the phenomenon that the fan blades fall is effectively avoided, the safety performance of the fan is remarkably improved, and the problem that in the prior art, the fan blades are prone to breakage and falling is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and in particular to a fan with anti-falling blades. Background Art

[0002] The existing large industrial ceiling fans have diameters ranging from three to eight meters. The rotation of the motor drives the blade propeller to operate. The blades cut the air at a certain angle to the horizontal plane, thereby generating wind.

[0003] After searching, in the prior art, a Chinese patent with patent application number CN202122169857.4 discloses a ceiling fan, including a turntable and a plurality of blades, wherein the diameter D of the turntable satisfies 270mm≤D≤450mm, the blades are mounted on the turntable and arranged along the radial direction of the turntable, and the plurality of blades are evenly distributed along the circumference of the turntable. The ceiling fan of this utility model can avoid the problem of blade drooping, and is safe and convenient to package and transport, but still has the following defects:

[0004] (1) The fan blades in the prior art have metal fatigue stress when in use. The fan blades are prone to breakage and fall after long-term use, which is unsafe.

[0005] In the prior art, the arc plate is connected to the turntable through a bolt assembly, but once the bolt assembly becomes loose and slips, the fan blades will fall, and its anti-falling performance is poor.

[0006] Therefore, we have made improvements to this and proposed a fan with anti-falling blades. Utility Model Content

[0007] The utility model aims to solve the problems that the existing fan blades lack anti-falling protection and the arc-shaped plates are prone to loosening and falling off.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] The fan with blades preventing from falling is used to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] The invention comprises a rotating disk, wherein a group of arc plates are evenly provided on the outer circumference of the rotating disk, and the arc plates are detachably connected to the rotating disk by two bolt assemblies, and elastic clamps are fixedly connected to the inner walls of the arc plates, and the outer walls of the arc plates are fixedly connected to a bearing block, and the bearing block is detachably connected to a fan blade by screws, and a first anti-falling frame and a second anti-falling frame are respectively clamped on the fan blade, and the outer ends of the first anti-falling frame and the second anti-falling frame are fixedly connected to a threaded column, a connecting piece is provided between two adjacent threaded columns, and a first nut is threadedly connected to the threaded column, and two mounting heads are inserted into the inner ends of the first anti-falling frame and the second anti-falling frame, and the mounting heads are threadedly connected to the second nuts, and the inner ends of the mounting heads are fixedly connected to a connecting rod, and the inner end of the connecting rod is fixedly connected to a connecting block, and the connecting block is detachably connected to the bearing block by a hexagon socket bolt.

[0012] As a preferred technical solution of the utility model, a group of sockets matching the elastic clamps are evenly opened on the turntable.

[0013] As a preferred technical solution of the utility model, a group of jacks matching the bolt assembly are evenly arranged on the turntable, and the bolt assembly includes bolts and nuts.

[0014] As a preferred technical solution of the utility model, the bearing block is provided with a groove matching with the connecting block, and the bearing block is also provided with a threaded hole matching with the screw.

[0015] As a preferred technical solution of the utility model, a plurality of hollow parts are opened on the turntable, and the plurality of hollow parts are evenly distributed along the circumference of the turntable.

[0016] As a preferred technical solution of the utility model, both the first anti-falling frame and the second anti-falling frame are provided with a card slot, and both the first anti-falling frame and the second anti-falling frame are made of hard alloy material.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the solution of the utility model:

[0019] 1. By providing the first anti-fall frame, the second anti-fall frame, the threaded column, the connecting piece, the first nut, the mounting head, the second nut, the connecting rod and the connecting block, the fan blades are protected against position limiting, the fan blades are effectively prevented from falling, the safety performance of the fan is significantly improved, and the problem of easy breakage and falling of the fan blades in the prior art is solved;

[0020] 2. By setting the elastic clips and sockets, the arc block can be stably limited to avoid the arc block from falling and the fan blades from falling, thereby improving safety and solving the problem of low stability of the arc block in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall structural diagram provided by the utility model;

[0022] Figure 2 A schematic diagram of the bottom structure provided by the utility model;

[0023] Figure 3 A schematic diagram of the separation structure of the turntable and the bearing block provided by the utility model;

[0024] Figure 4 A schematic diagram of the fan blade structure provided by the utility model;

[0025] Figure 5 The utility model provides Figure 4 The enlarged view of point A in the middle;

[0026] Figure 6 This is a schematic diagram of the separation structure of the connecting block and the bearing block provided by the utility model.

[0027] Indicated in the figure:

[0028] 1. Turntable; 2. Arc plate; 3. Bolt assembly; 4. Elastic clip; 5. Bearing block; 6. Fan blade; 7. First anti-fall frame; 8. Second anti-fall frame; 9. Threaded column; 10. Connecting piece; 11. First nut; 12. Mounting head; 13. Second nut; 14. Connecting rod; 15. Connecting block; 16. Socket; 17. Socket; 18. Groove; 19. Hollow part. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the present embodiment proposes a fan with blade anti-falling, comprising a turntable 1, a group of arc plates 2 are evenly arranged on the outer periphery of the turntable 1, the arc plates 2 are detachably connected to the turntable 1 by two bolt assemblies 3, and elastic clamps 4 are fixedly connected to the inner side walls of the arc plates 2 to prevent loosening or falling off due to vibration or external force, thereby improving the stability of the fan operation, and bearing blocks 5 are fixedly connected to the outer side walls of the arc plates 2, the bearing blocks 5 are detachably connected to fan blades 6 by screws, and the bearing blocks 5 can support the fan blades 6, and a first anti-falling frame 7 and a second anti-falling frame 8 are respectively clamped on the fan blades 6, and the outer ends of the first anti-falling frame 7 and the second anti-falling frame 8 are fixedly connected to threaded columns 9, and two adjacent threaded columns are fixedly connected to the outer side walls of the arc plates 2. A connecting piece 10 is provided between the columns 9, and the threaded columns 9 are all threadedly connected with a first nut 11, which is convenient for splicing and combining the first anti-fall frame 7 and the second anti-fall frame 8, and is convenient for installation and disassembly. Two mounting heads 12 are inserted at the inner ends of the first anti-fall frame 7 and the second anti-fall frame 8, and the mounting heads 12 are threadedly connected with a second nut 13. The inner ends of the mounting heads 12 are fixedly connected with a connecting rod 14, and the inner ends of the connecting rod 14 are fixedly connected with a connecting block 15. The connecting block 15 is detachably connected to the bearing block 5 through a hexagon socket bolt, which is convenient for connecting the first anti-fall frame 7 and the second anti-fall frame 8, and then the fan blades 6 can be limited to avoid the problem of the fan blades 6 falling, and it is also convenient for assembly and disassembly.

[0031] like Figure 1 and Figure 2 As shown, as a preferred embodiment, based on the above method, further, a group of sockets 16 matching the elastic clips 4 are evenly opened on the turntable 1; the insertion of the elastic clips 4 is facilitated by the sockets 16, thereby improving the stability of the installation of the arc plate 2.

[0032] like Figure 1 and Figure 2 As shown, as a preferred embodiment, based on the above method, further, a group of sockets 17 matching the bolt assembly 3 are evenly opened on the turntable 1, and the bolt assembly 3 is a bolt and a nut; the sockets 17 facilitate the assembly of the bolt assembly 3.

[0033] like Figure 1 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, a groove 18 matching the connecting block 15 is provided on the supporting block 5, and a threaded hole matching the screw is also provided on the supporting block 5; so that the connecting block 15 can be firmly embedded therein, thereby enhancing the stability of the connection.

[0034] like Figure 1 and Figure 2As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a plurality of hollow portions 19 are provided on the turntable 1, and the plurality of hollow portions 19 are evenly distributed along the circumference of the turntable 1; the weight of the turntable 1 is reduced, and the energy consumption and noise during the operation of the fan are reduced.

[0035] like Figure 1 and Figure 6 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first anti-fall frame 7 and the second anti-fall frame 8 are provided with a card slot, and the first anti-fall frame 7 and the second anti-fall frame 8 are both made of cemented carbide material; the first anti-fall frame 7 and the second anti-fall frame 8 are not only fixed on the fan blade 6 through the external structure, but also closely cooperate with the fan blade 6 through the internal card slot, providing double anti-fall protection, and the first anti-fall frame 7 and the second anti-fall frame 8 made of cemented carbide material can withstand greater impact force and pressure without being easily damaged.

[0036] Specifically, when the fan with blade anti-falling is working / in use: first install the arc plate 2 so that the elastic clip 4 is inserted into the socket 16, and then connect the arc plate 2 to the turntable 1 through the bolt assembly 3, and then install the fan blade 6 on the supporting block 5 through screws, and then insert the connecting block 15 into the groove 18, and then fix the connecting block 15 and the supporting block 5 with the hexagon socket bolts, and then engage the first anti-falling frame 7 and the second anti-falling frame 8 on the fan blade 6, and then put the connecting plate 10 between the two threaded columns 9, and then tighten the first nut 11 with the threaded column 9 respectively, insert the inner ends of the first anti-falling frame 7 and the second anti-falling frame 8 into the mounting head 12, and then tighten the second nut 13 with the mounting head 12 respectively, which can prevent the fan blade 6 from falling.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A fan with blades that can prevent falling, comprising a rotating disk (1), characterized in that: A group of arc-shaped plates (2) are evenly arranged on the outer circumference of the rotating disk (1); the arc-shaped plates (2) are detachably connected to the rotating disk (1) via two bolt assemblies (3); elastic clamps (4) are fixedly connected to the inner side walls of the arc-shaped plates (2); bearing blocks (5) are fixedly connected to the outer side walls of the arc-shaped plates (2); the bearing blocks (5) are detachably connected to the fan blades (6) via screws; a first anti-drop frame (7) and a second anti-drop frame (8) are respectively clamped on the fan blades (6); the outer ends of the first anti-drop frame (7) and the second anti-drop frame (8) are fixedly connected to threaded A column (9), a connecting piece (10) is provided between two adjacent threaded columns (9), a first nut (11) is threadedly connected to the threaded column (9), two mounting heads (12) are inserted into the inner ends of the first anti-fall frame (7) and the second anti-fall frame (8), a second nut (13) is threadedly connected to the mounting heads (12), the inner ends of the mounting heads (12) are fixedly connected to connecting rods (14), the inner ends of the connecting rods (14) are fixedly connected to connecting blocks (15), and the connecting blocks (15) are detachably connected to the bearing blocks (5) via hexagon socket bolts.

2. A fan with blades preventing from falling according to claim 1, characterized in that: The rotating disk (1) is evenly provided with a group of sockets (16) matching the elastic clamps (4).

3. A fan with blades preventing from falling according to claim 1, characterized in that: The rotating disk (1) is evenly provided with a group of insertion holes (17) matching with the bolt assembly (3), and the bolt assembly (3) comprises bolts and nuts.

4. A fan with blades preventing from falling according to claim 1, characterized in that: The bearing block (5) is provided with a groove (18) matching the connecting block (15), and the bearing block (5) is also provided with a threaded hole matching the screw.

5. A fan with blades preventing from falling according to claim 1, characterized in that: The rotating disk (1) is provided with a plurality of hollow portions (19), and the plurality of hollow portions (19) are evenly distributed along the circumference of the rotating disk (1).

6. A fan with blades preventing from falling according to claim 1, characterized in that: The first anti-fall frame (7) and the second anti-fall frame (8) are both provided with a card slot, and the first anti-fall frame (7) and the second anti-fall frame (8) are both made of a hard alloy material.

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