CN110056517A - A kind of exhaust fan convenient for being cleared up flabellum - Google Patents

Abstract

The invention provides an exhaust fan which is convenient for cleaning the fan blades, including inserts, bristles and plugs; the fan cover and the back cover are connected and fixed together by three annularly distributed screws on the edge of the ring; There are three edges in total, which are annularly arranged on the circumferential surface of the central circular plate at equal angles; there are six thin edges in total, which are distributed annularly on the circumferential surface of the central circular plate and are spaced from the wide edges; the rotating block is a cylinder It is arranged in the fan cover and the back cover, and is connected with the motor; the slot is a T-slot structure, which is opened on the income rod; the present invention adds a displacement frame to the exhaust fan, which can be used when the fan is running at a slow speed. Cleaning the fan blades is simple and easy to operate. Push the bristles inward to clean the moving fan blades. When the force is released, the displacement frame moves to the left under the action of the spring, so that the income rod returns to the storage slot. Inside, the operation is simple and easy, the cleaning of the fan blades is simple and feasible, easy to learn and easy to operate.

Description

An exhaust fan for easy cleaning of fan blades

technical field

The invention belongs to the technical field of exhaust fans, and more particularly, particularly relates to an exhaust fan which is convenient for cleaning fan blades.

Background technique

Exhaust fans are used in various technical fields of homes and factories to supply and discharge air, make air move, and achieve the purpose of air exchange.

For example, the Chinese patent with the application number CN201510499484.3 relates to a magnetically assisted exhaust fan in the electrical field, including a casing, a rotor assembly and a rotor fixing frame, and a louver that can open and close the exhaust opening is provided on the exhaust opening. The blade includes a driving blade at the middle end and a driven blade at the upper and lower ends. The driving blade and the driven blade are connected by a linkage rod. There is also a magnetic assist mechanism inside the exhaust pipe, and the magnetic assist mechanism includes a magnetic assist table. , the first magnetic part and the second magnetic part; a magnetic assist mechanism is provided, which has a magnetic attraction force. When the exhaust fan is working normally, the force generated by the air blowing volume and the magnetic attraction force is greater than that of the louver under the action of its own gravity, which can be The activity is opened to the maximum ventilation state. When the exhaust fan stops working, the louvers are affected by their own gravity more than the magnetic attraction force, and the louvers can be automatically closed. When the motor is working, the louvers will quickly open to the best state. The noise is particularly low when the blades are opened to the optimum state.

For example, the Chinese patent with the application number CN201310303535.1 relates to an exhaust fan mounted on a screen window, which belongs to the technical field of household appliance manufacturing. In the present invention, a stepped structure is arranged at the lower part of the outer frame of the exhaust fan and is matched with a support bar, so that the exhaust fan can be smoothly installed on screen windows of different sizes; the present invention adopts the edge banding cloth with Velcro on the edge of the overhead part of the exhaust fan. The present invention also provides power input sockets and power output plugs at corresponding positions on the upper and lower sides of the outer frame of the exhaust fan, so that the power connection between the continuously installed exhaust fans is convenient and reliable. After the practical application of the present invention, the cold air outside in the summer night can be continuously sucked into the room, which can replace the function of the air conditioner to a certain extent and significantly reduce the power consumption.

Based on the above, the inventors found that the existing exhaust fans will accumulate dust on the fan blades after a long period of use, and the fan cover needs to be completely disassembled for cleaning, which is difficult to clean and inconvenient to operate. .

Therefore, in view of this, the existing structure and defects are studied and improved, and an exhaust fan that is convenient for cleaning the fan blades is provided, in order to achieve a more practical purpose.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides an exhaust fan which is convenient for cleaning the fan blades, so as to solve the problem that the existing fans are difficult to clean and maintain the same operation.

The present invention facilitates the purpose and effect of the exhaust fan for cleaning the fan blades, and is achieved by the following specific technical means:

An exhaust fan for easy cleaning of fan blades, including fan cover, ring edge, wide edge, thin edge, storage groove, central circular plate, back cover, rotating block, fan blade, displacement frame, square guide block, baffle, Operating blocks, springs, receiving rods, slots, inserts, bristles and plugs; the fan cover and the back cover are fixed together by three annularly distributed screws on the edge of the ring; the wide edge has three places in total , and is annularly arranged on the circumferential surface of the central circular plate at an equal angle; there are six thin edges, which are distributed annularly on the circumferential surface of the central circular plate and are spaced from the wide ridges; the rotating block is cylindrical and is located on The fan cover is inside the back cover and is connected with the motor; the fan blades have three places, which are distributed and fixed on the rotating block in a ring shape; the displacement frame is composed of a square guide block, a baffle plate, an operation block, a spring and a receiving rod ; The slot is a T-slot structure, which is opened on the income rod.

Further, the receiving groove is a rectangular groove, which is opened on the wide edge, and a circular groove on the right side of the central circular plate, which is connected with the rectangular groove on the wide edge.

Further, the square guide block has a square column structure, is inserted in the central circular plate, and is connected with the central circular plate by a spring, and the rightmost end is a circular plate.

Further, the blocking piece is a circular piece and is arranged on the left side of the square guide block.

Further, the operation block is a cylindrical structure, and the outer peripheral surface is provided with a trapezoidal groove to form a spline structure, which is arranged on the left side of the blocking plate.

Further, there are three receiving rods, which are distributed in a ring shape on the circumference of the circular plate at the right end of the square guide block, and the width is equal to the width of the receiving groove.

Further, the insert is a T-strip structure, inserted in the slot, and a row of bristles is installed on the top side.

Further, the plug has a T-block structure, is provided with threaded holes, is plugged into the slot, and is fixed on the receiving rod on the outer periphery of the insert by screws.

Compared with the prior art, the present invention has the following beneficial effects:

The arrangement of the slot is conducive to fixing the insert and the plug, easy to install and disassemble, to guide the insert during installation and disassembly, easy to repair and replace after damage, easy to operate, and save time.

In the invention, a displacement frame is installed on the exhaust fan, so that the fan blades can be cleaned when the fan is running at a slow speed, and the operation is simple and easy. Then it moves to the left under the action of the spring, so that the receiving rod returns to the receiving groove, the operation is simple and easy, the cleaning of the fan blades is simple and feasible, and it is easy to learn and operate.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a left side view of the present invention.

FIG. 3 is a schematic diagram of the structure of the displacement frame of the present invention.

Figure 4 is a left side view of the displacement frame of the present invention.

FIG. 5 is a schematic diagram of the slot of the present invention.

Figure 6 is a schematic diagram of the cuttings of the present invention.

Figure 7 is a schematic diagram of the plug of the present invention.

Figure 8 is a left side view of the plug of the present invention.

In the figure, the corresponding relationship between component names and drawing numbers is:

1-fan cover, 101-ring edge, 102-wide edge, 103-fine edge, 104-storage slot, 105-central circular plate, 2-back cover, 3-rotating block, 4-fan blade, 5-displacement frame , 501-square guide block, 502-block, 503-operation block, 504-spring, 505-income rod, 6-slot, 7-insert, 8-bristles, 9-plug.

Detailed ways

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

As shown in Figures 1 to 8: an exhaust fan that is easy to clean the fan blades, including a fan cover 1, a ring edge 101, a wide edge 102, a thin edge 103, a storage groove 104, a central circular plate 105, and a back cover 2. Rotating block 3, fan blade 4, displacement frame 5, square guide block 501, baffle 502, operating block 503, spring 504, receiving rod 505, slot 6, insert 7, bristles 8 and plug 9; The fan cover 1 and the back cover 2 are connected and fixed together by three annularly distributed screws on the ring edge 101; the wide edge 102 has three places, which are annularly arranged on the circumferential surface of the central circular plate 105 at equal angles; There are six thin edges 103, which are annularly distributed on the circumferential surface of the central circular plate 105, and are spaced from the wide edges 102. The motors are connected to each other; the fan blades 4 have three places, which are distributed and fixed on the rotating block 3 in a ring shape; the displacement frame 5 is composed of a square guide block 501, a blocking piece 502, an operation block 503, a spring 504 and a receiving rod 505; The slot 6 is a T-slot structure and is opened on the receiving rod 505 .

Among them, the receiving groove 104 is a rectangular groove, which is opened on the wide edge 102, and is a circular groove on the right side of the central circular plate 105, which is connected with the rectangular groove on the wide edge 102 and is used for receiving the income rod. 505.

Among them, the square guide block 501 is a square column structure, inserted in the central circular plate 105, and a spring 504 is connected between the central circular plate 105, and the rightmost end is a circular plate, and a square hole is opened at the center of the central circular plate 105, The square guide block 501 can be moved left and right without radial rotation.

Among them, the blocking piece 502 is a circular piece, which is arranged on the left side of the square guide block 501 as a stop block when the square guide block 501 moves to the right. The fan blade 4 will not be touched during the right movement.

The operation block 503 is a cylindrical structure, and the outer peripheral surface is provided with a trapezoidal groove to form a spline structure, which is arranged on the left side of the blocking piece 502 to increase the contact friction force and facilitate the hand force operation.

Among them, there are three receiving rods 505, which are annularly distributed on the circumference of the circular plate at the right end of the square guide block 501, and the width is equal to that of the receiving groove 104. The bristles can contact the fan blade 4 after extending to the right.

The insert 7 is a T-strip structure, inserted into the slot 6, and a row of bristles 8 is installed on the top side.

Among them, the plug 9 is a T-shaped block structure with threaded holes, which are plugged into the slot 6, and on the outer periphery of the insert 7, is fixed on the receiving rod 505 by screws, and has a limiting effect on the insert 7. .

The specific usage mode and function of this embodiment:

In the present invention, the fan cover 1 and the back cover 2 are connected together by screws on the ring edge 101. When the fan blade 4 needs to be cleaned in the conventional method, the fan cover 1 and the back cover 2 need to be disassembled, and then use a brush The fan blade is cleaned. In the present invention, the fan blade is slowly rotated, and the operation block 503 is pushed to the right by hand. . Pushed out from the receiving slot 104 to the right, the bristles 8 are in contact with the fan blades 4, and the moving fan blades 4 are cleaned. The surface is the production standard. After cleaning, loosen the operating block 503, and the elastic force of the spring 504 pushes the blocking piece 502 to the left, so that the receiving rod 505 returns to the receiving slot 104. It is sparse and needs to be replaced. When replacing, the connection between the fan cover 1 and the back cover 2 is disassembled, and the plug 9 is loosened and taken out with a screwdriver, and the insert strip 7 is taken out from the slot 6 and replaced as a whole.

Claims (8)

1. An exhaust fan that is convenient for cleaning the fan blades, characterized in that: the exhaust fan that is convenient for cleaning the fan blades comprises a fan cover (1), a ring edge (101), a wide edge (102), a thin edge (103) , storage slot (104), central circular plate (105), back cover (2), rotating block (3), fan blade (4), displacement frame (5), square guide block (501), blocking plate (502) , operating block (503), spring (504), income rod (505), slot (6), insert (7), bristles (8) and plug (9); the fan cover (1) and the back The cover (2) is fixed together by three annularly distributed screws on the ring edge (101); the wide edge (102) has three places, which are annularly arranged on the circumferential surface of the central circular plate (105) at equal angles ; The thin edges (103) have a total of six places, which are annularly distributed on the circumferential surface of the central circular plate (105), and are spaced from the wide edges (102); The cover (1) is inside the back cover (2), and is connected with the motor; the fan blades (4) have three places, which are distributed and fixed on the rotating block (3) in a ring shape; the displacement frame (5) is formed by a square The guide block (501), the blocking plate (502), the operation block (503), the spring (504) and the receiving rod (505) are composed; the slot (6) is a T-slot structure, which is opened in the receiving rod (505) superior. 2. The exhaust fan according to claim 1, characterized in that: the receiving groove (104) is a rectangular groove, which is opened on the wide edge (102) and is on the right side of the central circular plate (105). The upper side is a circular groove, which is connected with the rectangular groove on the wide edge (102). 3. The exhaust fan according to claim 1, characterized in that: the square guide block (501) is a square column structure, which is inserted into the central circular plate (105), and is connected with the central circular plate (501). 105) is connected with a spring (504), and the rightmost end is a circular plate. 4 . The exhaust fan according to claim 3 , characterized in that: the baffle ( 502 ) is a circular piece, which is arranged on the left side of the square guide block ( 501 ). 5 . 5. The exhaust fan according to claim 4, characterized in that: the operating block (503) is a cylindrical structure, and the outer peripheral surface is provided with a trapezoidal groove to form a spline structure, which is arranged on the baffle (502). ) left. 6. The exhaust fan according to claim 3, characterized in that: the income rod (505) has three positions, which are annularly distributed on the circumference of the circular plate at the right end of the square guide block (501), with a width of It is equal to the groove width of the receiving groove (104). 7. The exhaust fan according to claim 1, characterized in that: the insert (7) is a T-strip structure, inserted into the slot (6), and a row is installed on the top side. Bristles (8). 8. The exhaust fan according to claim 1, characterized in that: the plug (9) is a T-block structure with threaded holes, which are plugged into the slot 6, and are inserted into the socket 6. The outer circumference of the strip (7) is fixed on the receiving rod (505) by screws.