Dustproof structure for cooling fan

Abstract

The utility model provides a dustproof structure for a cooling fan, which comprises a fan shell and a cooling fan body, a cleaning component is arranged on the front end face of the fan shell, and a rotation component is arranged on the right side of the front end face of the fan shell. The rotating reciprocating lead screw can drive the lifting base to move up and down in a reciprocating mode, and in the process, the lifting base can drive the sweeping brush roller to move up and down together through the connecting disc and the connecting shaft to sweep off most dust blocked by the front end face of the dustproof net plate; the sweeping brush roller can drive a transmission gear to move up and down together through a limiting shaft, so that the transmission gear moving up and down is meshed with a vertical rack, and the sweeping brush roller is driven to rotate through the limiting shaft, so that the sweeping brush roller rotates to sweep dust on the front end face of the dustproof net plate in the up-down reciprocating movement process; and therefore, the dust cleaning effect of the cleaning brush roller is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention of cooling fans, in particular to a dust prevention structure for cooling fans. Background Art

[0002] Cooling fans are mainly used for cooling and capacity expansion of dry-type transformers and cooling of electronic equipment, distribution cabinets, high and low voltage switch cabinets and other products.

[0003] Publication number "CN217873368U" provides a dust-proof structure for a cooling fan, which drives the fan blades to rotate through a motor, thereby driving the device to work. At this time, the motor drives the first pulley and the belt to rotate, and drives the second pulley and the roller on the auxiliary plate to rotate, thereby driving the first bevel gear to drive the second bevel gear to rotate, driving the reciprocating screw to rotate inside the sliding frame, so that the driving sliding block reciprocates on the outer surface of the reciprocating screw, and drives the support plate and the cleaning brush to slide inside the groove block, thereby preventing dust from accumulating on the outer surface of the baffle frame through the cleaning brush, thereby causing poor heat dissipation problems.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] The cleaning brush is not easy to remove and cannot be used for cleaning after it has been removed from the cleaning surface, so the cleaning brush is not easy to remove and cannot be used for cleaning after it has been removed from the cleaning surface. Utility Model Content

[0006] The purpose of the utility model is to provide a dustproof structure for a cooling fan to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A dustproof structure for a cooling fan, comprising a shield plate, a protective mesh plate, a fan housing, a support seat, a dustproof mesh plate and a cooling fan body, wherein the cooling fan body is installed inside the fan housing, the protective mesh plate is installed on the rear end face of the fan housing, the dustproof mesh plate is installed on the front end face of the fan housing, support seats are symmetrically installed on the left and right sides of the upper end face of the fan housing, the shield plate is fixedly connected to the upper end face of the support seat, a cleaning component is provided on the front end face of the fan housing, and the cleaning component is used to clean and sweep away most of the dust blocked by the front end face of the dustproof mesh plate, and a self-rotation component is provided on the right side of the front end face of the fan housing, and the self-rotation component enables the cleaning component that moves up and down to have self-rotation ability, thereby further improving the dust cleaning effect of the cleaning component.

[0009] Preferably, the cleaning component includes a speed regulating motor, a limit slot, a lifting seat, a connecting shaft, a cleaning brush roller and a reciprocating screw. A limit slot is provided on the left side of the front end face of the fan housing, a reciprocating screw is installed inside the limit slot, a speed regulating motor is installed on the upper end of the reciprocating screw, a lifting seat is provided on the lower side of the annular side surface of the reciprocating screw, a cleaning brush roller is installed on the inner side of the lifting seat, and a connecting shaft is installed on the left end of the cleaning brush roller.

[0010] Preferably, the self-rotation component includes a limiting shaft, a transmission gear, a limiting side plate and a vertical rack. The limiting shaft is installed on the right end of the cleaning brush roller. A transmission gear is provided on the right side of the annular side of the limiting shaft. A vertical rack is meshed on the rear side of the annular side of the transmission gear. The limiting side plate is fixedly connected to the right side of the front end face of the fan housing.

[0011] Preferably, a vertical groove is provided on the inner wall of the limiting side plate, a guide groove is provided on the right side of the inner wall of the vertical groove, and the guide groove matches the limiting shaft.

[0012] Preferably, a connecting disk is provided at the left end of the connecting shaft, and the connecting disk is circular in shape, a limiting cover is installed on the front side of the right end face of the lifting seat, and the limiting cover is in a circular ring shape, and the limiting cover is a detachable structure.

[0013] Preferably, the annular side surface of the cleaning brush roller contacts the front end surface of the dustproof mesh plate, the cleaning brush roller is a separately detachable structure, and the limiting groove matches the lifting seat.

[0014] Preferably, the left and right end surfaces of the fan housing are symmetrically provided with fixed bottom plates, the protective mesh plate and the dustproof mesh plate are both detachable structures, and the left and right width and front and back length of the shield plate are both larger than the left and right width and front and back length of the fan housing.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the working process of the cooling fan body, the utility model drives the reciprocating screw to rotate by the speed regulating motor, so that the rotating reciprocating screw can drive the lifting seat to move up and down. In this process, the lifting seat drives the cleaning brush roller to move up and down through the connecting plate and the connecting shaft to sweep away most of the dust blocked by the front end surface of the dustproof screen. When the speed regulating motor stops working, the cleaning brush roller can also stop working synchronously, so that the staff can control the working time of the cleaning brush roller according to the needs, and avoid excessive wear of the cleaning brush roller during use;

[0017] 2. When the cleaning component of the utility model is working, the cleaning brush roller will drive the transmission gear to move up and down through the limiting shaft, so that the transmission gear moving up and down is meshed with the vertical rack and drives the cleaning brush roller to rotate through the limiting shaft, so that the cleaning brush roller can rotate during the up and down reciprocating movement and clean the dust on the front end surface of the dustproof mesh plate, thereby further improving the dust cleaning effect of the cleaning brush roller, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 for Figure 1 The local structure diagram of

[0020] Figure 3 It is a top view of the cleaning component and the rotating component of the utility model;

[0021] Figure 4 It is a structural diagram of the cleaning component and the self-rotating component in the utility model;

[0022] Figure 5 This is a structural diagram of the cleaning brush roller in the utility model;

[0023] Figure 6 It is a structural diagram of the limiting side plate in the utility model.

[0024] In the figure: 1. shield plate; 2. protective mesh plate; 3. fan housing; 31. fixed bottom plate; 4. support seat; 5. cleaning assembly; 51. speed regulating motor; 52. limit groove; 53. lifting seat; 531. limit cover; 54. connecting shaft; 55. cleaning brush roller; 56. reciprocating screw; 57. connecting plate; 6. dustproof mesh plate; 7. rotation assembly; 71. limit shaft; 72. transmission gear; 73. limit side plate; 74. vertical rack; 75. guide groove; 76. vertical groove; 8. cooling fan body. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A dustproof structure for a cooling fan, comprising a shield plate 1, a protective mesh plate 2, a fan housing 3, a support seat 4, a dustproof mesh plate 6 and a cooling fan body 8. The cooling fan body 8 is installed inside the fan housing 3. When the cooling fan body 8 is powered on, negative pressure is generated inside the fan housing 3 to suck the air in the front and discharge it to the rear side, so as to ventilate and cool down. Since the internal detailed structure and working principle of the cooling fan body 8 are relatively mature technologies in the prior art, they will not be described in detail here. A protective mesh plate 2 is installed on the rear end face of the fan housing 3, and the protective mesh plate 2 will protect the rear end face of the fan housing 3. A dustproof mesh plate 6 is installed on the front end face of the fan housing 3, and the dustproof mesh plate 6 will block and filter most of the dust in the passing air to prevent dust in the air from directly entering the fan housing 3.

[0029] The support seats 4 are symmetrically installed on the left and right sides of the upper end surface of the fan casing 3, and the support seats 4 will support and fix the shield plate 1. The support seats 4 are a detachable structure. The detachable support seats 4 are convenient for the staff to disassemble, maintain or replace the shield plate 1 in the later stage. The upper end surface of the support seat 4 is fixedly connected with the shield plate 1. The left and right widths and the front and rear lengths of the shield plate 1 are both larger than the left and right widths and the front and rear lengths of the fan casing 3. The shield plate 1 will protect the upper end surface of the fan casing 3 from rain so that the fan casing 3 can be used outdoors. The left and right end surfaces of the fan casing 3 are symmetrically provided with fixed bottom plates 31, which are connected to the fan casing 3 by welding. The fixed bottom plates 31 are convenient for the staff to install and fix the fan casing 3. The protective mesh plate 2 and the dustproof mesh plate 6 are both detachable structures, which are convenient for the staff to disassemble, clean or replace them in the later stage.

[0030] A cleaning component 5 is provided on the front end face of the fan housing 3, and the cleaning component 5 is used to clean and sweep away most of the dust blocked by the front end face of the dustproof screen 6. A rotation component 7 is provided on the right side of the front end face of the fan housing 3, and the rotation component 7 enables the cleaning component 5 that moves up and down to have the ability to rotate, thereby further improving the dust cleaning effect of the cleaning component 5.

[0031] The cleaning assembly 5 includes a speed regulating motor 51, a limiting groove 52, a lifting seat 53, a connecting shaft 54, a cleaning brush roller 55 and a reciprocating screw 56. A limiting groove 52 is provided on the left side of the front end surface of the fan housing 3. The limiting groove 52 matches the lifting seat 53. The limiting groove 52 not only limits the lifting seat 53, but also facilitates the rear end of the lifting seat 53 to move up and down inside the fan housing 3. A reciprocating screw 56 is installed inside the limiting groove 52. When the reciprocating screw 56 rotates, it drives the lifting seat 53 to move up and down. The internal detailed structure and working principle of 56 are relatively mature technologies in the existing technology, so they will not be described in detail here. A speed regulating motor 51 is installed on the upper end of the reciprocating screw 56. The speed regulating motor 51 will drive the reciprocating screw 56 to rotate. The speed regulating motor 51 is connected to an external frequency conversion speed regulator through a wire. The external frequency conversion speed regulator facilitates the staff to control the working speed of the speed regulating motor 51. Since the internal detailed structure and working principle of the speed regulating motor 51 and the external frequency conversion speed regulator are relatively mature technologies in the existing technology, they will not be described in detail here.

[0032] A lifting seat 53 is arranged at the lower side of the annular side surface of the reciprocating screw 56, and the lifting seat 53 will support the connecting plate 57. A cleaning brush roller 55 is installed on the inner side of the lifting seat 53. The annular side surface of the cleaning brush roller 55 is in contact with the front end surface of the dustproof mesh plate 6. The cleaning brush roller 55 in contact with the front end surface of the dustproof mesh plate 6 will sweep away most of the dust blocked by the front end surface of the dustproof mesh plate 6 during the up and down movement and rotation process, thereby extending the cleaning cycle of the dustproof mesh plate 6. The cleaning brush roller 55 is a separately detachable structure, which is convenient for the staff to replace or clean it later. A connecting shaft 54 ​​is installed at the left end of 55, and the connecting shaft 54 ​​will support the left end of the cleaning brush roller 55. A connecting disk 57 is set at the left end of the connecting shaft 54, and the connecting disk 57 is circular in shape. The connecting disk 57 is connected to the connecting shaft 54 ​​by welding. The circular connecting disk 57 enables the connecting shaft 54 ​​to be rotatable. A limiting cover 531 is installed on the front side of the right end face of the lifting seat 53, and the limiting cover 531 is in a circular ring shape. The limiting cover 531 is a detachable structure. The limiting cover 531 in a circular ring shape will block and limit the connecting disk 57 to prevent the connecting disk 57 from loosening and displacement during use.

[0033] Embodiment 2:

[0034] On the basis of Example 1, in this embodiment, while the cleaning component 5 is working, the cleaning brush roller 55 will drive the transmission gear 72 to move up and down through the limiting shaft 71, so that the transmission gear 72 moving up and down is meshed with the vertical rack 74 and drives the cleaning brush roller 55 to rotate through the limiting shaft 71, so that the cleaning brush roller 55 can rotate during the up and down reciprocating movement to clean the dust on the front end surface of the dustproof screen plate 6, thereby further improving the dust cleaning effect of the cleaning brush roller 55.

[0035] The self-rotating assembly 7 includes a limiting shaft 71, a transmission gear 72, a limiting side plate 73 and a vertical rack 74. The limiting shaft 71 is installed at the right end of the cleaning brush roller 55. The limiting shaft 71 will support and limit the right end of the cleaning brush roller 55. A transmission gear 72 is arranged on the right side of the annular side of the limiting shaft 71. A vertical rack 74 is meshed on the rear side of the annular side of the transmission gear 72. The vertical rack 74 is connected to the limiting side plate 73 by welding. When the transmission gear 72 moves up and down, it will mesh with the vertical rack 74 and drive the limiting shaft 7 1 is rotated, the right side of the front end surface of the fan housing 3 is fixedly connected to the limiting side plate 73, the limiting side plate 73 will support the vertical rack 74, the inner wall of the limiting side plate 73 is provided with a vertical groove 76, the vertical groove 76 facilitates the transmission gear 72 and the limiting shaft 71 to move up and down inside the limiting side plate 73, the right side of the inner wall of the vertical groove 76 is provided with a guide groove 75, and the guide groove 75 matches the limiting shaft 71, the guide groove 75 will limit the limiting shaft 71, so as to ensure the stability of the up and down displacement of the limiting shaft 71.

[0036] Working principle: When the cooling fan body 8 is powered on, the dustproof screen 6 will filter the air entering the fan housing 3 to prevent dust in the external air from being directly sucked into the fan housing 3. At the same time, the protective screen 2 will protect the air outlet on the rear end face of the fan housing 3. When it is necessary to clean the dust blocked by the front end face of the dustproof screen 6, the staff only needs to control the speed regulating motor 51 to work at a preset speed through an external frequency converter, so that the speed regulating motor 51 can drive the reciprocating screw 56 to rotate, and the rotating reciprocating screw 56 will drive the lifting seat 53 to move up and down. In this process, the lifting seat 53 will drive the cleaning brush roller 55 to move up and down through the connecting plate 57 and the connecting shaft 54, so as to move up and down. The cleaning brush roller 55 sweeps away most of the dust blocked by the front end surface of the dustproof mesh plate 6. At the same time, the cleaning brush roller 55 will drive the limiting shaft 71 to move up and down together, and the limiting shaft 71 will drive the transmission gear 72 to move up and down, and the transmission gear 72 that moves up and down will mesh with the vertical rack 74 and drive the limiting shaft 71 to rotate, so that the limiting shaft 71 drives the cleaning brush roller 55 to rotate, so that the cleaning brush roller 55 can rotate and clean the dust on the front end surface of the dustproof mesh plate 6 during the up and down reciprocating movement, thereby further improving the dust cleaning effect of the cleaning brush roller 55. When most of the dust on the front end surface of the dustproof mesh plate 6 is swept down, the speed regulating motor 51 can be stopped, thereby extending the replacement cycle of the dustproof mesh plate 6.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof structure for a cooling fan, comprising a shielding plate (1), a protective mesh plate (2), a fan housing (3), a support base (4), a dustproof mesh plate (6) and a cooling fan body (8), characterized in that: A cooling fan body (8) is installed inside the fan housing (3), a protective mesh plate (2) is installed on the rear end surface of the fan housing (3), a dustproof mesh plate (6) is installed on the front end surface of the fan housing (3), support seats (4) are symmetrically installed on the left and right sides of the upper end surface of the fan housing (3), and a shielding plate (1) is fixedly connected to the upper end surface of the support seat (4); The front end face of the fan housing (3) is provided with a cleaning component (5), and the cleaning component (5) is used to clean and sweep away most of the dust blocked by the front end face of the dustproof screen (6). The right side of the front end face of the fan housing (3) is provided with a self-rotating component (7), and the self-rotating component (7) enables the cleaning component (5) that moves up and down to have the ability to self-rotate, thereby further improving the dust cleaning effect of the cleaning component (5).

2. The dust-proof structure for a cooling fan according to claim 1, characterized in that: The cleaning component (5) comprises a speed regulating motor (51), a limiting groove (52), a lifting seat (53), a connecting shaft (54), a cleaning brush roller (55) and a reciprocating screw (56). The left side of the front end surface of the fan housing (3) is provided with a limiting groove (52), a reciprocating screw (56) is installed inside the limiting groove (52), the upper end of the reciprocating screw (56) is provided with a speed regulating motor (51), the lower side of the annular side surface of the reciprocating screw (56) is provided with a lifting seat (53), the inner side of the lifting seat (53) is provided with a cleaning brush roller (55), and the left end of the cleaning brush roller (55) is provided with a connecting shaft (54).

3. The dust-proof structure for a cooling fan according to claim 2, characterized in that: The self-rotating assembly (7) comprises a limiting shaft (71), a transmission gear (72), a limiting side plate (73) and a vertical rack (74); the limiting shaft (71) is installed at the right end of the cleaning brush roller (55); a transmission gear (72) is arranged on the right side of the annular side surface of the limiting shaft (71); a vertical rack (74) is meshed on the rear side of the annular side surface of the transmission gear (72); and the limiting side plate (73) is fixedly connected to the right side of the front end surface of the fan housing (3).

4. The dustproof structure for a cooling fan according to claim 3, characterized in that: A vertical groove (76) is provided on the inner wall of the limiting side plate (73), a guide groove (75) is provided on the right side of the inner wall of the vertical groove (76), and the guide groove (75) matches the limiting shaft (71).

5. The dust-proof structure for a cooling fan according to claim 2, characterized in that: A connecting disk (57) is provided at the left end of the connecting shaft (54), and the connecting disk (57) is circular in shape. A limiting cover (531) is installed on the front side of the right end face of the lifting seat (53), and the limiting cover (531) is in the shape of a circular ring. The limiting cover (531) is a detachable structure.

6. The dustproof structure for a cooling fan according to claim 2, characterized in that: The annular side surface of the cleaning brush roller (55) contacts the front end surface of the dustproof screen plate (6); the cleaning brush roller (55) is a separately detachable structure; and the limiting groove (52) matches the lifting seat (53).

7. The dust-proof structure for a cooling fan according to claim 1, characterized in that: The left and right end surfaces of the fan housing (3) are symmetrically provided with fixed bottom plates (31); the protective mesh plate (2) and the dustproof mesh plate (6) are both detachable structures; the left and right width and front and back length of the shielding plate (1) are both greater than the left and right width and front and back length of the fan housing (3).

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