Powerless fan strong wind locking device

Abstract

The utility model discloses an unpowered fan strong wind locking device which comprises a clamping and locking structure, the clamping and locking structure comprises a clamping and locking plate, one side of the top of the clamping and locking plate is fixedly connected with a protective strip, one side of the bottom of the clamping and locking plate is provided with extrusion blocks at equal intervals, the inner wall of the bottom of the clamping and locking plate is movably connected with a limiting column, and the limiting column is fixedly connected with the clamping and locking plate. One end of the limiting column is fixedly connected with a mounting plate; and a moving structure is fixedly mounted on one side of the clamping and locking plate. According to the strong wind locking device for the unpowered fan, when strong wind occurs, a control structure controls a moving structure to drive a clamping and locking structure to move, then an extrusion block is extruded to the outer side of a connecting ring and a buffer piece, meanwhile, a clamping and locking plate is extruded and fixed to the outer portion of a rotating fan blade, then the unpowered fan is locked, the fan stops rotating, and therefore the unpowered fan is locked. And meanwhile, the noise condition caused by strong wind is avoided, and the using effect of the strong wind locking device of the unpowered fan is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of unpowered fans, in particular to a strong wind locking device for unpowered fans. Background Art

[0002] Many industrial plants have poor heat dissipation conditions and are extremely hot in the summer. Adding unpowered roof fans can effectively improve indoor air quality and provide a comfortable working environment. Unpowered roof fans mainly use aerodynamic principles to draw air inside the building into the hood through the rotation of the blades, and then discharge the air outdoors through the action of natural wind.

[0003] However, there are still some defects in the use of unpowered fans. When there is strong wind and bad weather outdoors, the strong wind will accelerate the rotation of the fan, causing the fan blades to collide with the base, causing the fan to be damaged. At the same time, it will generate loud noise, which will affect the normal use of the unpowered fan. Therefore, it is necessary to propose a strong wind locking device for the unpowered fan to reduce damage to the fan blades when encountering strong winds. Utility Model Content

[0004] The purpose of the utility model is to provide a strong wind locking device for an unpowered fan, so as to solve the problem of loud noise caused by the collision of fan blades in strong winds proposed in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a strong wind locking device for an unpowered fan, comprising a locking structure, wherein the locking structure comprises a locking plate, and a protective strip is fixedly connected to one side of the top of the locking plate, and extrusion blocks are equidistantly installed on one side of the bottom of the locking plate, and the bottom inner wall of the locking plate is movably connected to a limiting column, and one end of the limiting column is fixedly connected to a mounting plate;

[0006] A movable structure is fixedly installed on one side of the locking plate, and a control structure is installed on the outside of the movable structure. A mounting base plate is fixedly installed on the bottom of the mounting plate, and a mounting ring plate is welded on the top of the mounting base plate. A rotating fan blade is rotatably installed on the top of the mounting ring plate, and a connecting ring is welded on the bottom edge of the rotating fan blade, and a buffer sheet is bonded to the outer wall of the connecting ring at equal distances.

[0007] Preferably, one side of the top of the locking plate is an arc-shaped structure, and the protective strip is fixedly connected to the inner side of the arc-shaped structure of the locking plate, one side of the extrusion block is an arc-shaped structure, the buffer sheet is extruded on one side of the extrusion block, and the buffer sheet, extrusion block and protective strip are all made of rubber.

[0008] Preferably, the movable structure includes a movable frame 1, and one side of the movable frame 1 is provided with latches at equal distances, one side of the latches is engaged with a gear, and the inner wall of the gear is fixedly connected to a rotating column, and one side of the gear is engaged with the movable frame 2.

[0009] Preferably, one side of the second movable frame and one side of the first movable frame are both provided with latching teeth, and the second movable frame and the first movable frame are arranged on both sides of the gear through the engagement of the latching teeth, and the gear is rotatably installed on the top of the mounting base plate through a rotating column.

[0010] Preferably, the rotating column is rotatably mounted on the top of the mounting base, and an electric push rod is fixedly mounted on the top of the mounting base, one end of the telescopic rod of the electric push rod is fixedly mounted on one side of the mobile frame, and the electric push rods are symmetrically arranged on both sides of the mobile frame.

[0011] Preferably, the movable structure is symmetrically arranged on both sides of the rotating fan blades, a fixed box is symmetrically installed on the top of the mounting base, and the outer wall of movable frame one and the outer wall of movable frame two are both movably connected to the inner wall of the fixed box, and a support frame is fixedly installed on the top of the fixed box.

[0012] Preferably, an air bag is installed on the top of the fixed box through a support frame, and the air bag is made of PVC. A control switch is fixedly installed on the top of the fixed box, and the conductive sheet is horizontally arranged on one side of the conductive block.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the strong wind locking device for unpowered fans;

[0014] 1. When strong winds occur, the control structure controls the moving structure to drive the locking structure to move, thereby squeezing the extrusion block onto the outside of the connecting ring and the buffer sheet, and at the same time squeezing and fixing the locking plate onto the outside of the rotating fan blades, thereby locking the unpowered fan and stopping the fan from rotating. This prevents the fan blades from hitting the base and causing deformation, and also prevents noise caused by strong winds, thereby ensuring the effectiveness of the strong wind locking device for the unpowered fan.

[0015] 2. The gear is pushed and rotated by an electric push rod, and the locking structures on both sides are moved at the same time. When the locking plate moves to set the extrusion block between the buffer plates, there is a gap between the locking plate and the rotating fan blades. When the rotating fan blades rotate, the buffer plates are squeezed and moved on one side of the extrusion block, so that the rotating fan blades are buffered and rotated. In strong winds, the unpowered fan can be slowed down, which reduces damage to the fan while ensuring the normal use of the fan, thereby increasing the use value of the strong wind locking device of the unpowered fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the mobile structure of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the locking structure of the utility model;

[0019] Figure 4 It is a structural diagram of the control structure of the utility model.

[0020] In the figure: 1. Locking structure; 11. Locking plate; 12. Protective strip; 13. Extrusion block; 14. Mounting plate; 15. Limiting column; 2. Moving structure; 21. Moving frame 1; 22. Electric push rod; 23. Gear; 24. Rotating column; 25. Moving frame 2; 26. Fixed box; 3. Control structure; 31. Support frame; 32. Air bag; 33. Conductive sheet; 34. Conductive block; 35. Control switch; 4. Mounting base plate; 5. Mounting ring plate; 6. Rotating fan blade; 7. Connecting ring; 8. Buffer sheet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] See also Figure 1-4 The utility model provides a technical solution: a strong wind locking device for an unpowered fan, comprising a locking structure 1, wherein the locking structure 1 comprises a locking plate 11, and a protective strip 12 is fixedly connected to one side of the top of the locking plate 11, and an extrusion block 13 is equidistantly installed on one side of the bottom of the locking plate 11, the top side of the locking plate 11 is an arc-shaped structure, and the protective strip 12 is fixedly connected to the inner side of the arc-shaped structure of the locking plate 11, one side of the extrusion block 13 is an arc-surface structure, the buffer sheet 8 is extruded on one side of the extrusion block 13, and the buffer sheet 8, the extrusion block 13 and the protective strip 12 are all made of rubber;

[0024] The bottom inner wall of the locking plate 11 is movably connected to a limiting column 15, and one end of the limiting column 15 is fixedly connected to a mounting plate 14. A moving structure 2 is fixedly mounted on one side of the locking plate 11, and a control structure 3 is mounted on the outside of the moving structure 2. A mounting base plate 4 is fixedly mounted on the bottom of the mounting plate 14, and a mounting ring plate 5 is welded to the top of the mounting base plate 4. A rotating fan blade 6 is rotatably mounted on the top of the mounting ring plate 5, and a connecting ring 7 is welded to the bottom edge of the rotating fan blade 6. A buffer sheet 8 is bonded to the outer wall of the connecting ring 7 at equal distances.

[0025] The control structure 3 controls the moving structure 2 to move the locking structure 1, thereby squeezing the squeezing block 13 onto the outside of the connecting ring 7 and the buffer sheet 8, and at the same time squeezing and fixing the locking plate 11 onto the outside of the rotating fan blade 6, thereby locking the unpowered fan and stopping the fan from rotating, thereby preventing the fan blades from hitting the base and causing deformation, and at the same time avoiding noise caused by strong winds;

[0026] The rubber material of the buffer sheet 8 and the extrusion block 13 facilitates buffering between the fan and the locking structure, thereby facilitating the deceleration of the rotating fan blade 6. At the same time, when the protective strip 12 is squeezed on one side of the rotating fan blade 6, the extrusion block 13 is squeezed on the outside of the connecting ring 7. Due to the material of the protective strip 12 and the extrusion block 13, it is convenient to fix the outside of the fan while avoiding hard scratches, thereby ensuring the integrity of the fan's external structure;

[0027] Example 2:

[0028] According to Example 1, in order to ensure the use of unpowered fans in strong wind conditions, please refer to Figure 2-4 The mobile structure 2 includes a mobile frame 21, and one side of the mobile frame 21 is provided with latches at equal distances, one side of the latches is engaged with a gear 23, and the inner wall of the gear 23 is fixedly connected to a rotating column 24, one side of the gear 23 is engaged with a mobile frame 25, and one side of the mobile frame 25 and one side of the mobile frame 21 are both provided with latches, and the mobile frame 25 and the mobile frame 1 21 are arranged on both sides of the gear 23 through the latches;

[0029] The gear 23 is rotatably mounted on the top of the mounting base 4 via a rotating column 24. The rotating column 24 is rotatably mounted on the top of the mounting base 4. An electric push rod 22 is fixedly mounted on the top of the mounting base 4. One end of the telescopic rod of the electric push rod 22 is fixedly mounted to one side of the mobile frame 21. The electric push rods 22 are symmetrically arranged on both sides of the mobile frame 21. The mobile structure 2 is symmetrically arranged on both sides of the rotating fan blades 6. A fixing box 26 is symmetrically mounted on the top of the mounting base 4.

[0030] The outer walls of the movable frame 1 21 and the outer walls of the movable frame 2 25 are both movably connected to the inner wall of the fixed box 26. The support frame 31 is fixedly mounted on the top of the fixed box 26. The air bag 32 is mounted on the top of the fixed box 26 through the support frame 31. The air bag 32 is made of PVC. The control switch 35 is fixedly mounted on the top of the fixed box 26, and the conductive sheet 33 is horizontally arranged on one side of the conductive block 34.

[0031] The gear 23 is pushed and rotated by the electric push rod 22, thereby moving the locking structures 1 on both sides simultaneously. When the locking plate 11 moves to set the extrusion block 13 between the buffer sheet 8, a gap exists between the locking plate 11 and the rotating blade 6. When the rotating blade 6 rotates, the buffer sheet 8 is squeezed and moved on one side of the extrusion block 13, so that the rotating blade 6 is buffered and rotated. In strong winds, the unpowered fan can be decelerated for use.

[0032] The setting of the fixed box 26 facilitates covering the connection between the gear 23, the movable frame 1 21 and the movable frame 2 25. At the same time, the movable frame 25 and the movable frame 1 21 move on the inner wall of the fixed box 26, thereby facilitating the horizontal limitation of the movable frame 25 and the movable frame 1 21, and facilitating the horizontal movement of the movable frame 1 21 and the movable frame 2 25. The setting of the latching teeth facilitates the reverse movement of the movable frame 2 25 through the gear 23 when the movable frame 1 21 moves, thereby facilitating the simultaneous use of the locking structures 1 on both sides.

[0033] Working principle: When using the strong wind locking device for unpowered fans, when strong winds occur, the strong wind blows the wind bag 32 open, and then the conductive sheet 33 is attached to the side of the conductive block 34, and then the circuit inside the control switch 35 is connected, so that the control switch 35 turns on the electric push rod 22. When the electric push rod 22 pushes the movable frame 1 21, it rotates the gear 23 to drive the movable frame 2 25 to move in the opposite direction;

[0034] Thus, the locking structures 1 on both sides are moved toward the rotating blades 6 at the same time, and when the movable frame 1 21 drives the locking plate 11 to move, the locking plate 11 moves outside the limiting column 15, and then the extrusion block 13 is squeezed against the outer wall of the connecting ring 7, and the protective strip 12 is squeezed against the outer side of the rotating blades 6, thereby locking and fixing the rotating blades 6, so that the fan can be temporarily stopped and used again in strong wind conditions;

[0035] By remotely controlling the use of the electric push rod 22, the movable frame 1 21 and the movable frame 2 25 are driven to move outward a fixed distance, so that the protective strip 12 leaves the outside of the rotating fan blade 6, and at the same time the extrusion block 13 is restricted between the buffer plates 8. Then, when the rotating fan blade 6 is rotated by the wind, the buffer plates 8 are squeezed and moved between the extrusion blocks 13, and the rotating fan blade 6 is buffered and rotated, thereby slowing down the fan and ensuring the normal use of the fan under strong wind conditions.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strong wind locking device for an unpowered fan, comprising a locking structure (1), characterized in that: The locking structure (1) comprises a locking plate (11), and a protective strip (12) is fixedly connected to one side of the top of the locking plate (11), and an extrusion block (13) is equidistantly installed on one side of the bottom of the locking plate (11), and a limiting column (15) is movably connected to the inner wall of the bottom of the locking plate (11), and one end of the limiting column (15) is fixedly connected to a mounting plate (14); A movable structure (2) is fixedly mounted on one side of the locking plate (11), and a control structure (3) is mounted on the outside of the movable structure (2); a mounting base plate (4) is fixedly mounted on the bottom of the mounting plate (14), and a mounting ring plate (5) is welded to the top of the mounting base plate (4); a rotating blade (6) is rotatably mounted on the top of the mounting ring plate (5), and a connecting ring (7) is welded to the bottom edge of the rotating blade (6); and a buffer sheet (8) is bonded to the outer wall of the connecting ring (7) at equal distances.

2. The strong wind locking device for an unpowered fan according to claim 1, characterized in that: One side of the top of the locking plate (11) is in an arc-shaped structure, and the protective strip (12) is fixedly connected to the inner side of the arc-shaped structure of the locking plate (11); one side of the extrusion block (13) is in an arc-shaped structure; the buffer sheet (8) is extruded and arranged on one side of the extrusion block (13); and the buffer sheet (8), the extrusion block (13) and the protective strip (12) are all made of rubber.

3. The strong wind locking device for an unpowered fan according to claim 1, characterized in that: The moving structure (2) comprises a moving frame 1 (21), and one side of the moving frame 1 (21) is provided with latching teeth at equal distances, one side of the latching teeth is meshed with a gear (23), and the inner wall of the gear (23) is fixedly connected with a rotating column (24), and one side of the gear (23) is meshed with a moving frame 2 (25).

4. The strong wind locking device for an unpowered fan according to claim 3 is characterized in that: The second moving frame (25) and one side thereof and the first moving frame (21) are both provided with latching teeth, and the second moving frame (25) and the first moving frame (21) are arranged on both sides of a gear (23) through the engagement of the latching teeth, and the gear (23) is rotatably installed on the top of the mounting base plate (4) through a rotating column (24).

5. The strong wind locking device for an unpowered fan according to claim 4, characterized in that: The rotating column (24) is rotatably mounted on the top of the mounting base plate (4), and an electric push rod (22) is fixedly mounted on the top of the mounting base plate (4), one end of the telescopic rod of the electric push rod (22) is fixedly mounted on one side of the moving frame (21), and the electric push rod (22) is symmetrically arranged on both sides of the moving frame (21).

6. The strong wind locking device for an unpowered fan according to claim 1, characterized in that: The movable structure (2) is symmetrically arranged on both sides of the rotating blade (6); a fixed box (26) is symmetrically installed on the top of the mounting base plate (4); and the outer wall of the movable frame 1 (21) and the outer wall of the movable frame 2 (25) are both movably connected to the inner wall of the fixed box (26); and a support frame (31) is fixedly installed on the top of the fixed box (26).

7. The strong wind locking device for an unpowered fan according to claim 6, characterized in that: A wind bag (32) is installed on the top of the fixing box (26) via a support frame (31), and the wind bag (32) is made of PVC material. A control switch (35) is fixedly installed on the top of the fixing box (26), and a conductive sheet (33) is horizontally arranged on one side of the conductive block (34).

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