Large outdoor fan host
By designing a retractable blade structure, the problems of large space occupation and easy damage of outdoor fan blades are solved, achieving protection and stability when not in use.
Patent Information
- Application Number
- CN202520413280.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing outdoor fan blades take up a lot of space when not in use and are easily damaged by the external environment, especially in strong winds where they are prone to swaying and bending.
Design a large outdoor fan main unit with blades that can be flipped and retracted to a vertical position, and fixed by limit blocks and elastic protective layers to prevent the blades from being affected by the external environment when not in use.
When not in use, the blades will not be damaged by the external environment, reducing space occupation, ensuring normal use in the future, and avoiding blade shaking and damage.
Smart Images
Figure CN223952845U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fan equipment technical field more specifically, a large -scale outdoor fan main machine. BACKGROUND
[0002] The existing fan is generally installed in the room and used for circulating air or cooling the room.
[0003] However, the fan is not generally installed in the external environment, but in some high-temperature weather, the external environment still needs to be operated at high temperature. In high-temperature weather, the external air flow is small, and the external operation is prone to heatstroke and other problems. If a fan is installed in the external high-temperature environment, the air flow can be achieved, which can help the human body to dissipate heat and reduce the occurrence of heatstroke. However, the existing external fan generally adopts a small axial flow fan, which has limited effect.
[0004] Therefore, a vertical rod body can be fixed outdoors, and a fan main machine can be installed on the top of the vertical rod body. A rotating impeller is installed on the fan main machine. The impeller is similar to the impeller of an industrial crane. When not in use, the space occupied by the impeller in the unfolded state is too large. When the external wind is relatively large, the blades are prone to shaking and have a risk of bending. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the defects of the prior art and providing a large -scale outdoor fan main machine. When not in use, the blades can be turned over and folded, so that they are not affected by the external environment and are not easily damaged, ensuring normal use in the future.
[0006] The utility model solves the technical problem by the following scheme:
[0007] A large -scale outdoor fan main machine comprises a main shell, a main motor is inserted into the main shell, a top plate of the main motor is fixed to the bottom surface of the middle part of the top plate of the main shell, the top end of the output shaft of the main motor extends out of the top surface of the top plate of the main shell and is fixed with an impeller hub, characterized in that: the edge top surface of the bottom plate of the impeller hub is fixed with a plurality of transverse connecting plates, and all the transverse connecting plates are installed with blades that can be turned over downward to be vertical.
[0008] The middle part of the bottom surface of the inner end of the blade is formed with a moving insertion slot extending outward, the transverse connecting plate is inserted into the moving insertion slot, guide connecting shafts are fixed at the inner ends of the front and rear inner side walls of the moving insertion slot, and the guide connecting shafts are inserted into and matched with the corresponding transverse guide grooves.
[0009] The middle part of the inner end of the moving insertion slot is formed with a middle through slot.
[0010] The utility model discloses a highlight effect is:
[0011] Compared with the prior art, it can be folded when not in use, so that it is not affected by the external environment, and subsequent normal use is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a partial structure schematic view of the utility model;
[0013] Figure 2 It is a partial structure schematic view when the blade of the utility model is folded;
[0014] Figure 3 It is Figure 1 The partial enlarged view of
[0015] Figure 4 It is a partial structure schematic view between the transverse connecting plate and the blade;
[0016] Figure 5 It is a partial structure schematic view when the transverse connecting plate and the blade are fixed;
[0017] Figure 6 It is a partial structure schematic view at the limiting block. DETAILED DESCRIPTION
[0018] Embodiment, see as Figures 1 to 6 The utility model discloses a large -scale outdoor fan host, including main casing 10, when installing, the bottom surface of main casing 10 is fixed on the top of vertical support column fixed on the ground of outdoor, the inside bushing of main casing 10 has main motor 11, and the top end plate of main motor 11 is fixed in the bottom surface middle part of the top plate of main casing 10, and the top end of the output shaft of main motor 11 is stretched out the top surface of the top plate of main casing 10 and is fixed with the impeller hub 20, the edge top surface of the bottom plate of impeller hub 20 is fixed with a plurality of transverse connecting plates 30, and all transverse connecting plates 30 are installed with the blade 40 that can be turned down to be vertical.
[0019] All transverse connecting plates 30 are evenly distributed on the edge top surface of the bottom plate of impeller hub 20 with the center axis of impeller hub 20 as the center and are welded fixed. This embodiment is five transverse connecting plates 30.
[0020] The middle part of the two side walls of transverse connecting plate 30 is formed with transverse guide groove 310, and the middle part of the bottom surface at the inner end of blade 40 is formed with outward extending movement slot 41, and transverse connecting plate 30 is inserted in movement slot 41, and the inner end of the front and rear two inner side walls of movement slot 41 is fixed with guide connecting shaft 42, and guide connecting shaft 42 is inserted in corresponding transverse guide groove 310 and is matched with transverse guide groove 310.
[0021] The middle part of the mobile slot 41 at the inner end is formed with a middle through slot 43. The middle through slot 43 is convenient for the blade 40 to move outward and turn downward without interference with the transverse connecting plate 30.
[0022] The middle part of the mobile slot 41 at the outer end is formed with a plurality of connecting through holes 44 corresponding to the corresponding vertical through holes 31 at the outer end of the corresponding transverse connecting plate 30.
[0023] The shank part of the fixing bolt 1 is inserted into the corresponding connecting through hole 44 and vertical through hole 31, the end of the shank part of the fixing bolt 1 protrudes out of the corresponding vertical through hole 31 and is screwed with two fixed nuts 2 pressing against each other, one end surface of one of the fixed nuts 2 presses against the corresponding wall surface of the transverse connecting plate 30, and one end surface of the rotating part of the fixing bolt 1 presses against the corresponding wall surface of the corresponding blade 40.
[0024] Further, a plurality of limiting blocks 50 are fixed on the outer side wall of the main shell 10.
[0025] Further, the front and rear side walls of each of the limiting blocks 50 are connected by bolts with side connecting plates 52, the opposite wall surfaces of the outer ends of the corresponding two side connecting plates 52 are formed with extension parts 53, the extension parts 53 and the outer wall surfaces of the limiting blocks 50 form a slot, the blade 40 is inserted into the corresponding slot, the inner wall surface of the extension part 53 and the outer end surface of the limiting block 50 are both fixed with an elastic protective layer 3 corresponding to the outer wall surface or the inner wall surface of the corresponding blade 40. When the blade 40 is in the vertical slot 51, the elastic protective layer 3 can limit and support the blade 40, reducing the problem of shaking.
[0026] In use, as shown in Figure 1 It is in the installation and use state, all the blades 40 are in the unfolded state, and the main motor 11 is operated to rotate the impeller hub part 20, so that all the blades 40 are operated.
[0027] When it is not used for a long time or the external wind is too large, in order to prevent the possibility of bending or other damage of the blade 40, the fixing bolt 1 and the fixed nut 2 at the corresponding position of the blade 40 can be disassembled, the blade 40 is pulled outward, and then turned downward, as shown in Figure 2 The corresponding fixing bolt 1 and the fixed nut 2 are assembled on the blade 40.
[0028] And the turned over blade 40 will be in the elastic protective layer 3 at the vertical outer wall surface of the corresponding limiting block 50, then, the side connecting plate 52 on the front and back sides of the corresponding limiting block 50 is fixed by bolts, so that the corresponding blade 40 is in the slot formed between the vertical slot 51 and the two side connecting plates 52, the inner wall surface of the extension 53 fixed elastic protective layer 3 is pressed against the outer wall surface of the corresponding blade 40, so as to position and fix the blade 40, so that it is not easy to shake, and it is not easy to be damaged.
[0029] Finally, it should be noted that the above embodiments are only more representative examples of the present application. Obviously, the present application is not limited to the above embodiments, and there can be many variations. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments shall be considered to fall within the protection scope of the present application.
Claims
1. A large outdoor fan main unit, comprising a main housing (10), wherein a main motor (11) is inserted inside the main housing (10), the top plate of the main motor (11) is fixed to the middle of the bottom surface of the top plate of the main housing (10), and the top end of the output shaft of the main motor (11) extends out of the top surface of the top plate of the main housing (10) and is fixed with an impeller hub (20), characterized in that: The bottom plate of the impeller hub (20) has multiple transverse connecting plates (30) fixed on its top edge, and all transverse connecting plates (30) are equipped with blades (40) that can be flipped downwards to be vertical. The transverse connecting plate (30) has transverse guide grooves (310) formed in the middle of its two side walls. The blade (40) has an outwardly extending movable slot (41) formed in the middle of its bottom surface at the inner end. The transverse connecting plate (30) is inserted into the movable slot (41). The inner ends of the front and rear inner side walls of the movable slot (41) are fixed with guide connecting shafts (42). The guide connecting shafts (42) are inserted into the corresponding transverse guide grooves (310) and cooperate with the transverse guide grooves (310).
2. The large outdoor fan main unit according to claim 1, characterized in that: All transverse connecting plates (30) are evenly distributed on the top edge of the bottom plate of the impeller hub (20) with the central axis of the impeller hub (20) as the center and are welded and fixed.
3. The large outdoor fan main unit according to claim 1, characterized in that: A central through groove (43) is formed at the center of the inner end of the movable slot (41).
4. A large outdoor fan main unit according to claim 1, characterized in that: The outer end of the movable slot (41) has a plurality of connecting through holes (44) formed in the middle, and the connecting through holes (44) correspond to the vertical through holes (31) at the outer end of the corresponding horizontal connecting plate (30).
5. A large outdoor fan main unit according to claim 4, characterized in that: The screw part of the fixing bolt (1) is inserted into the corresponding connecting through hole (44) and vertical through hole (31). The end of the screw part of the fixing bolt (1) extends out of the corresponding vertical through hole (31) and is screwed with two mutually pressing fixing nuts (2). The end face of one of the fixing nuts (2) presses against the corresponding wall surface of the transverse connecting plate (30), and the corresponding end face of the rotating part of the fixing bolt (1) presses against the corresponding wall surface of the corresponding blade (40).
6. A large outdoor fan main unit according to claim 1, characterized in that: Multiple limiting blocks (50) are fixed on the outer side wall of the main housing (10).
7. A large outdoor fan main unit according to claim 6, characterized in that: Each of the limiting blocks (50) has a side connecting plate (52) fixedly connected to its front and rear side walls by bolts. The opposite walls of the outer ends of the two corresponding side connecting plates (52) are formed with extensions (53). A slot is formed between the extension (53) and the outer wall of the limiting block (50). The blade (40) is inserted into the corresponding slot. An elastic protective layer (3) is fixed to the inner wall of the extension (53) and the outer end face of the limiting block (50). The elastic protective layer (3) corresponds to the outer wall or inner wall of the corresponding blade (40).