Damping structure for fan

Abstract

The damping structure for the fan comprises a mounting plate and a connecting piece, the mounting plate is arranged at the top of the fan, a connecting hole is formed in the middle of the mounting plate, a plurality of first threaded holes are formed in the mounting plate, and the first threaded holes are evenly distributed with the circle center of the connecting hole as the center. The damping structure is fixedly connected with the fan base through the mounting plate, the damping fin is mounted between the connecting piece and the mounting plate, when the head of the fan rotates, the connecting piece, the connecting column and the locking piece rotate relative to the damping fin and the fixing piece, and the damping fin and the fixing piece generate certain friction force to achieve a damping effect on the connecting piece; according to the fan head, the movement speed of the connecting piece can be slowed down, so that the friction loss and abrasion degree of the connecting piece are reduced, the occurrence rate of mechanical faults is reduced, meanwhile, the rotation stability and control performance of the fan head can be improved, and the fan head is easier to control and adjust, large in adjusting range and stable and reliable in rotation.

Description

Technical Field

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

[0002] An electric fan, abbreviated as a fan, also known as a ventilator, is a household appliance that uses an electric motor to drive the fan blades to rotate to accelerate the flow of air, mainly used for cooling and air circulation. It is widely used in households, classrooms, offices, stores, hospitals, hotels and other places. A fan mainly consists of components such as a fan head, blades, a grille and a control device.

[0003] However, when the fan rotates, the connecting piece will be worn due to friction. After being used for a long time, mechanical failures will occur. At the same time, due to the wear, the rotation of the fan head will be unstable, making it difficult to control and adjust the fan head.

[0004] Therefore, it is necessary to provide a damping structure for a fan to solve the above technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a damping structure for a fan to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A damping structure for a fan, including a mounting plate and a connecting piece. The mounting plate is arranged on the top of the fan. A connecting hole is opened in the middle of the mounting plate. A plurality of first threaded holes are opened on the mounting plate. The plurality of first threaded holes are evenly distributed around the center of the connecting hole. A fixing piece is arranged on the mounting plate. A damping piece is arranged between the mounting plate and the connecting piece. A clamping hole is opened in the middle of the connecting piece. The clamping hole is a square hole. Arc-shaped grooves are opened at both ends of the clamping hole. A connecting column is arranged in the clamping hole. The connecting column includes a connecting head. The connecting head is circular. A clamping column is arranged on the connecting head. The clamping column is clamped in the clamping hole. An arc-shaped portion is arranged at the end of the clamping column. The arc-shaped portion is adapted to the shape of the arc-shaped groove. A ring column is arranged at the top of the clamping column. The top of the ring column sequentially penetrates through the damping piece, the connecting hole and the fixing piece. A locking piece is arranged on the fixing piece. The lower end of the locking piece is threadedly connected to the top of the ring column.

[0007] As a preferred technical solution of the utility model, the number of the first threaded holes is six, and six counterbore holes are evenly opened on the fixing piece.

[0008] As a preferred technical solution of the utility model, the six counterbore holes respectively correspond to the six first threaded holes one by one. A locking screw is arranged in the counterbore hole. The threaded portion of the locking screw is screwed into the first threaded hole.

[0009] As a preferred technical solution of the present utility model, a third threaded hole is provided at the top of the annular column, and a stud is provided in the middle of one end of the locking member, and the stud is engaged and locked with the third threaded hole.

[0010] As a preferred technical solution of the present utility model, a hexagonal turning head is provided at the other end of the locking member, and a chamfer is provided at the connection between the stud and the locking member.

[0011] As a preferred technical solution of the present utility model, the cross-sectional shape of the connecting member is arch-shaped, and second threaded holes are provided at both ends of the connecting member.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For the damping structure for a fan of the present utility model, the damping structure is fixedly connected to the fan base through the mounting plate. The clamping post of the connecting column is clamped into the clamping hole of the connecting member. At the same time, a damping sheet is installed between the connecting member and the mounting plate. The annular column of the connecting column passes through the center of the damping sheet. A fixing piece is installed on the mounting plate through six locking screws. The stud of the locking member passes through the center of the fixing piece and is screwed into the third threaded hole of the annular column, so that the connecting member, the connecting column and the locking member are locked together. When the connecting member rotates, the connecting column and the locking member rotate with the connecting member at the same time, and rotate relatively with the damping sheet and the fixing piece. The fan head is fixedly installed on the connecting member, and the fan head is locked by passing a bolt through the fan head and screwing it into the second threaded hole. When the fan head needs to rotate, the connecting member, the connecting column and the locking member rotate relatively with the damping sheet and the fixing piece. The damping sheet and the fixing piece generate a certain frictional force to act as a damping on the connecting member, which can slow down the movement speed of the connecting member, thereby reducing the frictional loss and wear degree of the connecting member, reducing the incidence of mechanical failures. At the same time, the stability and control performance of the rotation of the fan head can be improved, so that the fan head is easier to control and adjust, and the rotation angle of the fan head can be arbitrarily adjusted within a large range, with a large adjustment range and stable and reliable rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below with reference to the drawings and embodiments.

[0015] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is an axonometric drawing of the overall structure of the present utility model;

[0017] Figure 3 is the front view of the overall structure of the present utility model;

[0018] Figure 4 is a three-dimensional schematic diagram of the mounting plate structure of the present utility model;

[0019] Figure 5 is a three-dimensional schematic diagram of the connecting piece structure of the present utility model;

[0020] Figure 6 is a three-dimensional schematic diagram of the connecting column structure of the present utility model;

[0021] Figure 7 is a three-dimensional schematic diagram of the locking piece structure of the present utility model.

[0022] In the figure: 1. mounting plate; 11. connecting hole; 12. first threaded hole; 2. connecting piece; 21. clamping hole; 211. arc groove; 22. second threaded hole; 3. connecting column; 31. connecting head; 32. clamping column; 321. arc part; 33. ring column; 331. third threaded hole; 4. fixing piece; 41. countersunk head hole; 5. locking piece; 51. stud; 52. chamfer; 53. hexagonal turning head; 6. locking screw; 7. damping piece. Detailed implementation manners

[0023] The embodiments of the present utility model will be described below with reference to the accompanying drawings. During this process, to ensure the clarity and convenience of the description, we may exaggerate the widths of the lines or the sizes of the components in the drawings.

[0024] In addition, the terms used below are defined based on the functions in the present utility model and may vary according to the intentions or conventions of users and operators. Therefore, these terms are defined based on the entire content of this specification.

[0025] Such as Figures 1 to 7As shown in the figure, a damping structure for a fan includes a mounting plate 1 and a connecting member 2. The mounting plate 1 is arranged at the top of the fan and is used to connect the fan base. A connecting hole 11 is formed in the middle of the mounting plate 1. Six first threaded holes 12 are formed in the mounting plate 1, and the six first threaded holes 12 are evenly distributed around the center of the connecting hole 11. A fixing piece 4 is arranged on the mounting plate 1. Six countersunk holes 41 are evenly formed in the fixing piece 4, and the six countersunk holes 41 correspond to the six first threaded holes 12 one by one. A locking screw 6 is arranged in the countersunk hole 41, and the threaded part of the locking screw 6 is screwed into the first threaded hole 12. A damping piece 7 is arranged between the mounting plate 1 and the connecting member 2. When the connecting member 2 rotates, a frictional force is generated between the damping piece 7 and the connecting member 2, thereby slowing down the rotation speed of the connecting member 2, effectively reducing the wear degree when the connecting member 2 rotates, and effectively extending the service life of the connecting member 2. The cross-sectional shape of the connecting member 2 is arch-shaped. A clamping hole 21 is formed in the middle of the connecting member 2. The clamping hole 21 is a square hole, and arc-shaped grooves 211 are formed at both ends of the clamping hole 21. A connecting column 3 is arranged in the clamping hole 21. The connecting column 3 includes a connecting head 31. The connecting head 31 is circular. A clamping post 32 is arranged on the connecting head 31. The clamping post 32 is clamped in the clamping hole 21. An arc-shaped portion 321 is arranged at the end of the clamping post 32, and the arc-shaped portion 321 is adapted to the outer shape of the arc-shaped groove 211.

[0026] As Figure 6 and Figure 7 shown in the figure, a ring column 33 is arranged at the top of the clamping post 32. A third threaded hole 331 is formed at the top of the ring column 33. The top of the ring column 33 sequentially penetrates through the damping piece 7, the connecting hole 11 and the fixing piece 4. A locking member 5 is arranged on the fixing piece 4. A stud 51 is arranged in the middle of one end of the locking member 5. A hexagonal turning head 53 is arranged at the other end of the locking member 5. The locking member 5 is adjusted through the hexagonal turning head 53. The stud 51 is matched with the third threaded hole 331 to rotatably arrange the connecting member 2 between the connecting column 3 and the damping piece 7. A chamfer 52 is formed at the connection between the stud 51 and the locking member 5. Second threaded holes 22 are formed at both ends of the connecting member 2. The fan head is fixedly connected to the connecting member 2 by screwing a locking bolt through the fan head into the second threaded hole 22, so that the fan head can rotate a certain angle along with the connecting member 2. Through the action of the damping piece 7, the fan head can rotate at any angle within a large range, and at the same time, the fan head can stay at any angle. The adjustment range is large, and the rotation is stable and reliable.

[0027] Specifically, the implementation manner is as follows: the damping structure is fixedly connected to the fan base through the mounting plate 1. The clamping post 32 of the connecting column 3 is clamped into the clamping hole 21 of the connecting piece 2. At the same time, a damping sheet 7 is installed between the connecting piece 2 and the mounting plate 1. The annular column 33 of the connecting column 3 passes through the center of the damping sheet 7. A fixing piece 4 is installed and fixed on the mounting plate 1 through six locking screws 6. The stud 51 of the locking piece 5 passes through the center of the fixing piece 4 and is screwed into the third threaded hole 331 of the annular column 33, so that the connecting piece 2, the connecting column 3 and the locking piece 5 are locked together. When the connecting piece 2 rotates, the connecting column 3 and the locking piece 5 rotate with the connecting piece 2 at the same time, and relatively rotate with the damping sheet 7 and the fixing piece 4. The fan head is fixedly installed on the connecting piece 2. The fan head is locked by passing a bolt through the fan head and screwing it into the second threaded hole 22. When the fan head needs to rotate, the connecting piece 2, the connecting column 3 and the locking piece 5 relatively rotate with the damping sheet 7 and the fixing piece 4. The damping sheet 7 and the fixing piece 4 generate a certain frictional force to play a damping role on the connecting piece 2, which can slow down the movement speed of the connecting piece 2, thereby reducing the frictional loss and wear degree of the connecting piece 2, reducing the incidence of mechanical failures. At the same time, it can improve the rotation stability and control performance of the fan head, so that the fan head is easier to control and adjust, and the rotation angle of the fan head can be arbitrarily adjusted within a large range, with a large adjustment range and stable and reliable rotation.

[0028] In addition, it should be understood that although this specification is described according to the implementation manners, not each implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A damping structure for a fan, characterized in that: It includes a mounting plate (1) and a connecting piece (2). The mounting plate (1) is arranged at the top of the fan. A connecting hole (11) is provided in the middle of the mounting plate (1). A plurality of first threaded holes (12) are provided on the mounting plate (1). The plurality of first threaded holes (12) are evenly distributed around the center of the connecting hole (11). A fixing piece (4) is arranged on the mounting plate (1). A damping piece (7) is arranged between the mounting plate (1) and the connecting piece (2). A clamping hole (21) is provided in the middle of the connecting piece (2). The clamping hole (21) is a square hole. Arc-shaped grooves (211) are provided at both ends of the clamping hole (21). A connecting column (3) is arranged in the clamping hole (21). The connecting column (3) includes a connecting head (31). The connecting head (31) is circular. A clamping column (32) is arranged on the connecting head (31). The clamping column (32) is clamped in the clamping hole (21). An arc-shaped portion (321) is arranged at the end of the clamping column (32). The arc-shaped portion (321) is adapted to the shape of the arc-shaped groove (211). A ring column (33) is arranged at the top of the clamping column (32). The top of the ring column (33) sequentially penetrates through the damping piece (7), the connecting hole (11) and the fixing piece (4). A locking piece (5) is arranged on the fixing piece (4). The lower end of the locking piece (5) is threadedly connected to the top of the ring column (33).

2. The damping structure for a fan according to claim 1, wherein: The number of the first threaded holes (12) is six. Six counterbore holes (41) are evenly provided on the fixing piece (4).

3. The damping structure for a fan according to claim 2, characterized in that: The six counterbore holes (41) respectively correspond to the six first threaded holes (12) one by one. A locking screw (6) is arranged in the counterbore hole (41). The threaded portion of the locking screw (6) is screwed into the first threaded hole (12).

4. The damping structure for a fan according to claim 2, characterized in that: A third threaded hole (331) is provided at the top of the ring column (33). A stud (51) is arranged in the middle of one end of the locking piece (5). The stud (51) is matched and locked with the third threaded hole (331).

5. The damping structure for a fan according to claim 4, characterized in that: A hexagonal turning head (53) is arranged at the other end of the locking piece (5). A chamfer (52) is provided at the connection between the stud (51) and the locking piece (5).

6. The damping structure for a fan according to claim 1, wherein: The cross-sectional shape of the connecting piece (2) is arch-shaped. Second threaded holes (22) are provided at both ends of the connecting piece (2).

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