Vertical hot air fan rotating mechanism

Abstract

The utility model relates to the field of hot-air fans, in particular to a vertical hot-air fan rotating mechanism, which comprises a tower fan base, a rotating positioning seat assembly, a motor assembly, an upper wear-resistant pad, a lower wear-resistant pad and a wear-resistant shaft sleeve, the rotating positioning seat assembly comprises a positioning seat base and a positioning seat upper seat, and the positioning seat base is fixed at the upper end of the tower fan base. The positioning seat upper seat is clamped and fixed to the upper end of the positioning seat base, the wear-resisting shaft sleeve is installed in a through hole of the positioning seat upper seat in an interference mode, the lower wear-resisting pad is clamped and arranged in an outer circular ring groove of the positioning seat upper seat, and the motor assembly comprises a motor, a motor seat and a connecting rod assembly; the motor base is installed in the outer circular ring groove, a shaft rod in the middle of the motor base is rotationally arranged in the wear-resisting shaft sleeve, the upper wear-resisting pad is installed at the bottom of the motor base in a clamped mode, balls are arranged in an opening in the upper end of the lower wear-resisting pad, arc grooves matched with the balls are formed in the upper wear-resisting pad, and oil grooves are formed in the shaft rod at intervals.

Description

Technical Field

[0001] This utility model relates to the field of hot air fans, and specifically to a vertical hot air fan rotating mechanism. Background Technology

[0002] A standing hot air fan is a common household appliance, mainly used to provide localized or regional heat to help keep warm in cold environments. The rotating mechanism is a crucial component of a standing hot air fan. Originally, the white circular pad in the rotating mechanism could become stuck due to stress or other factors after prolonged operation, causing the fan to stop rotating. Bearings are also a key component supporting the fan's normal operation; bearing wear is another common cause of fan jamming and malfunction.

[0003] Therefore, in order to overcome the shortcomings of the existing technology, it is necessary to design a simple vertical hot air fan rotating mechanism. Utility Model Content

[0004] This invention provides a vertical hot air fan rotating mechanism to solve the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A vertical hot air fan rotating mechanism includes: a tower fan base, a rotating positioning seat assembly, a motor assembly, an upper wear-resistant pad, a lower wear-resistant pad, and a wear-resistant bushing. The rotating positioning seat assembly includes a positioning seat base and a positioning seat upper seat. The positioning seat base is fixed to the upper end of the tower fan base, and the positioning seat upper seat is snap-fitted to the upper end of the positioning seat base. The wear-resistant bushing is interference-fitted into the through hole of the positioning seat upper seat. The lower wear-resistant pad is snap-fitted into the outer annular groove of the positioning seat upper seat. The motor assembly includes a motor, a motor base, and a connecting rod assembly. The motor is mounted on the motor base and driven to the positioning seat upper seat through the connecting rod assembly. The motor base is installed in the outer annular groove. The shaft in the middle of the motor base is rotatably mounted inside the wear-resistant bushing. The upper wear-resistant pad is snap-fitted into the bottom of the motor base. A ball bearing is provided in the opening at the upper end of the lower wear-resistant pad. An arc groove matching the ball bearing is provided on the upper wear-resistant pad. Oil grooves are provided at intervals on the shaft.

[0006] In a further improvement, the motor base is provided with a tilt switch base, and a tilt switch is installed on the tilt switch base.

[0007] In a further improvement, the bottom of the tower fan base is provided with a stepped mounting hole, the lower end of the positioning seat base is set in the stepped mounting hole, and the middle part of the positioning seat base is provided with a stud that passes through the stepped mounting hole. The stud is threadedly connected to a base tightening screw located on the tower fan base.

[0008] In a further improvement, the tower fan base includes a left tower fan base and a right tower fan base. The left tower fan base has an insertion hole on its right side, and the right tower fan base has a threaded insertion rod that is inserted into the insertion hole on its left side.

[0009] In a further improvement, the motor base is provided with an arc-shaped groove, and the top of the positioning seat is provided with a guide post located in the arc-shaped groove. The connecting rod assembly includes a connecting block, a connecting rod, and a transmission shaft. The upper end of the connecting block is fixedly connected to the motor output shaft, and the lower end of the connecting block is rotatably connected to one end of the connecting rod. The lower end of the transmission shaft is fixed in the guide post, and the upper end of the transmission shaft is rotatably connected to the other end of the connecting rod.

[0010] Compared with the prior art, the beneficial effects of the vertical hot air fan rotating mechanism of this utility model are as follows:

[0011] By placing ball bearings in the openings of the lower wear-resistant pad and providing matching arc grooves for the upper wear-resistant pad, the sliding friction between the upper and lower wear-resistant pads is changed to rolling friction, greatly reducing frictional resistance and preventing jamming. At the same time, the oil grooves spaced on the shaft can store lubricating oil, which also reduces the friction between the shaft and the wear-resistant bushing, reducing the occurrence of jamming. Furthermore, the upper and lower wear-resistant pads and the wear-resistant bushing are made of wear-resistant materials, greatly increasing their service life. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the exploded view of this utility model.

[0014] Figure 3 This is a schematic diagram of a partial structure of the present invention.

[0015] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0016] Figure 5 This is a schematic diagram of the structure of the wear-resistant pad in this utility model.

[0017] In the diagram, 1-Tower fan base, 11-Left tower fan base, 111-Insertion hole, 12-Right tower fan base, 121-Threaded insertion rod, 13-Stepped mounting hole, 2-Rotating positioning seat assembly, 21-Positioning seat base, 211-Stud, 212-Base tightening screw, 22-Positioning seat upper seat, 221-Through hole, 222-Outer annular groove, 223-Guide post, 3-Motor assembly, 31-Motor, 32-Motor base, 321-Shaft, 322-Oil groove, 323-Arc groove, 33-Connecting rod assembly, 331-Connecting block, 332-Connecting rod, 333-Drive shaft, 4-Upper wear-resistant pad, 41-Arc groove, 5-Lower wear-resistant pad, 51-Opening, 52-Ball bearing, 6-Wear-resistant bushing, 71-Tilting switch base, 72-Tilting switch. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The following describes the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0021] Example 1

[0022] A vertical hot air fan rotating mechanism includes: a tower fan base 1, a rotating positioning seat assembly 2, a motor assembly 3, an upper wear-resistant pad 4, a lower wear-resistant pad 5, and a wear-resistant bushing 6. The rotating positioning seat assembly 2 includes a positioning seat base 21 and a positioning seat upper seat 22. The positioning seat base 21 is fixed to the upper end of the tower fan base 1, and the positioning seat upper seat 22 is snap-fitted to the upper end of the positioning seat base 21. The wear-resistant bushing 6 is interference-fitted into the through hole 221 of the positioning seat upper seat 22, and the lower wear-resistant pad 5 is snap-fitted into the outer annular groove 222 of the positioning seat upper seat 22. The motor assembly... Component 3 includes a motor 31, a motor base 32, and a connecting rod assembly 33. The motor 31 is mounted on the motor base 32 and is driven to connect to the upper positioning seat 22 via the connecting rod assembly 33. The motor base 32 is installed in the outer annular groove 222. The shaft 321 in the middle of the motor base 32 is rotatably mounted inside the wear-resistant bushing 6. The upper wear-resistant pad 4 is snapped onto the bottom of the motor base 32. The lower wear-resistant pad 5 has a ball bearing 52 in the opening 51 at the upper end. The upper wear-resistant pad 4 has an arc groove 41 that matches the ball bearing 52. The shaft 321 has oil grooves 322 spaced apart.

[0023] like Figures 1-5 As shown, the working principle of this utility model is as follows: The motor base 32 is fixed inside the outer shell of the vertical hot air fan (the outer shell is not shown). Through the cooperation of the motor 31, motor base 32 and connecting rod assembly 33 in the motor assembly 3, the motor assembly 3 rotates on the rotating positioning seat assembly 2, thereby driving the external machine to rotate. The ball bearing 52 is placed in the opening 51 of the lower wear-resistant pad 5 and the upper wear-resistant pad 4 is provided with an arc groove 41 that matches the ball bearing 52. This changes the sliding friction between the upper wear-resistant pad 4 and the lower wear-resistant pad 5 to rolling friction, greatly reducing frictional resistance and making it less prone to jamming. At the same time, the oil grooves 322 spaced on the shaft 321 can store lubricating oil, which also reduces the friction between the shaft and the wear-resistant bushing 6, reducing jamming. Furthermore, the upper wear-resistant pad 4, the lower wear-resistant pad 5 and the wear-resistant bushing 6 are made of wear-resistant materials, which greatly increases their service life.

[0024] As a further preferred embodiment, the motor base 32 is provided with a tilt switch base 71 fixed thereon, and a tilt switch 72 is installed on the tilt switch base 71, which is convenient for assembly line specialization.

[0025] As a further preferred embodiment, the bottom of the tower fan base 1 is provided with a stepped mounting hole 13, and the lower end of the positioning base 21 is disposed in the stepped mounting hole 13. The middle part of the positioning base 21 is provided with a stud 211 passing through the stepped mounting hole 13. The stud 211 is threadedly connected to a base tightening screw 212 located on the tower fan base 1. The design of the stepped mounting hole and the stud enhances the connection stability between the tower fan base and the positioning base, preventing displacement or damage caused by vibration.

[0026] As a further preferred embodiment, the tower fan base 1 includes a left tower fan base 11 and a right tower fan base 12. The left tower fan base 11 has an insertion hole 111 on its right side, and the right tower fan base 12 has a threaded insertion rod 121 that is inserted into the insertion hole 111 on its left side. The split design makes the assembly and maintenance of the tower fan base more convenient and improves the maintainability of the product.

[0027] As a further preferred embodiment, the motor base 32 is provided with an arc-shaped groove 323, and the top of the positioning seat 22 is provided with a guide post 223 located in the arc-shaped groove 323. The connecting rod assembly 33 includes a connecting block 331, a connecting rod 332, and a transmission shaft 333. The upper end of the connecting block 331 is fixedly connected to the motor output shaft, and the lower end of the connecting block 331 is rotatably connected to one end of the connecting rod 332. The lower end of the transmission shaft 333 is fixed in the guide post 223, and the upper end of the transmission shaft 333 is rotatably connected to the other end of the connecting rod 332, thereby realizing the transmission of motor power to the positioning seat for its rotation. The design of the arc-shaped groove and the guide post ensures that the rotation angle is within a certain range.

[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A vertical hot air fan rotating mechanism, characterized in that, include: The fan assembly comprises a tower fan base, a rotating positioning seat assembly, a motor assembly, an upper wear-resistant pad, a lower wear-resistant pad, and a wear-resistant bushing. The rotating positioning seat assembly includes a positioning seat base and a positioning seat upper seat. The positioning seat base is fixed to the upper end of the tower fan base, and the positioning seat upper seat is snap-fitted to the upper end of the positioning seat base. The wear-resistant bushing is interference-fitted into a through hole in the positioning seat upper seat. The lower wear-resistant pad is snap-fitted into an outer annular groove in the positioning seat upper seat. The motor assembly includes a motor, a motor base, and a connecting rod assembly. The motor is mounted on the motor base and driven to the positioning seat upper seat via the connecting rod assembly. The motor base is installed in the outer annular groove. A shaft in the middle of the motor base is rotatably mounted inside the wear-resistant bushing. The upper wear-resistant pad is snap-fitted to the bottom of the motor base. A ball bearing is provided in an opening at the upper end of the lower wear-resistant pad. An arc groove matching the ball bearing is provided on the upper wear-resistant pad. Oil grooves are spaced apart on the shaft.

2. The vertical hot air fan rotating mechanism according to claim 1, characterized in that, The motor base is provided with a tilt switch base, and a tilt switch is installed on the tilt switch base.

3. The vertical hot air fan rotating mechanism according to claim 1, characterized in that, The bottom of the tower fan base is provided with a stepped mounting hole, the lower end of the positioning seat base is set in the stepped mounting hole, and the middle part of the positioning seat base is provided with a stud that passes through the stepped mounting hole. The stud is threaded with a base tightening screw located on the tower fan base.

4. The vertical hot air fan rotating mechanism according to claim 1, characterized in that, The tower fan base includes a left tower fan base and a right tower fan base. The left tower fan base has an insertion hole on its right side, and the right tower fan base has a threaded insertion rod that is inserted into the insertion hole on its left side.

5. A vertical hot air fan rotating mechanism according to claim 1, characterized in that, The motor base is provided with an arc-shaped groove, and the top of the positioning seat is provided with a guide post located in the arc-shaped groove. The connecting rod assembly includes a connecting block, a connecting rod, and a transmission shaft. The upper end of the connecting block is fixedly connected to the motor output shaft, and the lower end of the connecting block is rotatably connected to one end of the connecting rod. The lower end of the transmission shaft is fixed in the guide post, and the upper end of the transmission shaft is rotatably connected to the other end of the connecting rod.

Images