Up-down oscillating mechanism capable of balancing dead weight of fan head

Abstract

The invention relates to the technical field of up-down oscillating mechanisms, in particular to an up-down oscillating mechanism capable of balancing the dead weight of a fan head, which comprises a U-shaped cover and a fan head cover, a U-shaped connector is detachably connected to the surface of the U-shaped cover, the U-shaped connector is rotatably connected with the fan head cover, a steel frame is mounted in the fan head cover, and the U-shaped connector is rotatably connected with the fan head cover. A transmission assembly is installed on the surface of the steel frame, a balance block is installed at the end of the transmission assembly and fixedly connected with a U-shaped connector, a balance torsion spring is installed in the balance block, one end of the balance torsion spring is connected with a fan head cover, and the other end of the balance torsion spring is connected with the U-shaped connector. And the transmission assembly comprises an eccentric rotating block and an arc-shaped connecting rod. The fan head vertical oscillating mechanism aims at solving the problem that most of existing fan head vertical oscillating mechanisms do not fully consider the balance of the self weight of a fan head.

Description

Technical Field

[0001] The invention relates to the technical field of up and down shaking mechanism, in particular to an up and down shaking mechanism capable of balancing the dead weight of a fan head. Background Art

[0002] The fan mainly promotes air flow through the rotation of fan blades, thereby generating wind, which accelerates air circulation, reduces body temperature, and brings a cool and comfortable feeling to people. During the use of the fan, in order to improve user experience and enhance practicality, the fan head needs to shake up and down. Shaking the fan up and down can allow the wind to blow evenly on different positions to avoid the harm caused by direct blowing. It can also simulate the effect of natural wind with changing directions, giving people a more comfortable feeling. In a multi-person environment or a larger space, shaking the fan up and down can expand the wind coverage area so that more areas can be blown by the wind. It is also beneficial to air circulation, allowing the indoor hot and cold air to mix better and improve the ventilation effect. In addition, it can adapt to people of different heights and postures. Whether sitting, standing or lying down, people can feel the wind, meeting the needs of various usage scenarios.

[0003] Most of the existing fan head up and down shaking mechanisms have not fully considered the balance problem of the fan head's own weight. During the shaking process, the fan head's own weight often leads to unstable shaking action. For example, when the fan head shakes upward, the torque generated by gravity will increase the motor load, which is prone to uneven shaking speed and jamming, seriously affecting the service life and usage experience of the fan. Moreover, this unbalanced self-weight effect can easily cause wear and looseness of components during long-term use of the fan, increasing maintenance costs. When it can no longer bear the weight, the fan head may suddenly fall, posing a safety hazard. Summary of the invention

[0004] The purpose of the present invention is to provide an up and down shaking mechanism that can balance the weight of a fan head, so as to solve the problem that most of the existing up and down shaking mechanisms of fan heads do not fully consider the balance problem of the fan head's own weight.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A kind of up and down shaking mechanism that can balance the deadweight of a fan head, comprises a U-shaped cover and a fan head cover, the surface of the U-shaped cover is detachably connected with a U-shaped connector, the U-shaped connector and the fan head cover are rotatably connected, a steel frame is installed in the fan head cover, a transmission assembly is installed on the surface of the steel frame, a balancing block is installed at the end of the transmission assembly, the balancing block and the U-shaped connector are fixedly connected, a balancing torsion spring is installed in the balancing block, one end of the balancing torsion spring is interconnected with the fan head cover, and the other end is interconnected with the U-shaped connector.

[0007] Preferably, the transmission assembly includes an eccentric swivel block and an arc-shaped connecting rod, the surface of the eccentric swivel block is provided with a second joint rotatably connected to one end of the arc-shaped connecting rod, and one end of the balancing block is provided with a third joint rotatably connected to the other end of the arc-shaped connecting rod.

[0008] Preferably, a motor is mounted on the surface of the steel frame, and a first joint fixedly connected to an output end of the motor is provided on the surface of the eccentric rotating block.

[0009] Preferably, it also includes a back cover, the top end of which is fixedly connected to a steel plate, the steel plate is arranged between the U-shaped cover and the U-shaped connector, and the U-shaped cover and the steel plate are detachably connected.

[0010] Preferably, a threaded hole is provided on the inner side of the U-shaped cover, and a through hole used in conjunction with the threaded hole is provided on the surface of the U-shaped connector.

[0011] Preferably, it further comprises a front cover, and the top end of the front cover is fixedly connected to the U-shaped connector.

[0012] Preferably, a groove is provided on the surface of the rear cover, a fixing block is inserted into the groove, and the fixing block is connected to the front cover via bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] A balancing block is arranged between the U-shaped connecting head and the fan head cover, and one end of the balancing torsion spring in the balancing block is interconnected with the fan head cover, and the other end is interconnected with the U-shaped connecting head. When the fan head rotates downward, the fan head cover rotates downward, and the torque generated by the dead weight of the fan head will cause the fan head cover to tend to rotate downward at an accelerated speed. The balancing torsion spring will generate a reverse elastic torque to resist excessive downward rotation of the fan head due to its own weight, thereby balancing the dead weight of the fan head. Similarly, when the fan head rotates upward, the balancing torsion spring can reduce the torque required for the motor to lift the fan head, because the balancing torsion spring will deform with the rotation of the fan head, store elastic potential energy, and according to Hooke's law, the elastic force generated can balance the movement of the fan head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the fan head cover of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the transmission assembly of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the balancing weight of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the arc connecting rod of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the fan head cover of the present invention;

[0021] Figure 7 It is a structural schematic diagram of the U-shaped cover of the present invention;

[0022] Figure 8 It is a structural schematic diagram of the fixing block of the present invention;

[0023] Fig. 9 It is a schematic diagram of the structure of the back cover of the present invention;

[0024] Fig.10 It is a structural schematic diagram of the control panel of the present invention;

[0025] Fig.11 It is a structural schematic diagram of the front cover of the present invention;

[0026] Fig.12 It is a schematic structural diagram of the protective cover of the present invention.

[0027] In the figure: 1. rear cover; 2. groove; 3. fixing block; 4. steel plate; 5. U-shaped cover; 6. threaded hole; 7. perforation; 8. U-shaped connector; 9. fan head cover; 10. steel frame; 11. motor; 12. eccentric rotating block; 13. first joint; 14. second joint; 15. arc connecting rod; 16. third joint; 17. balancing block; 18. balancing torsion spring; 19. clamping block; 20. protective cover; 21. mounting base; 22. front cover; 23. control board. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 12 , the present invention provides a technical solution:

[0030] A vertical shaking mechanism capable of balancing the deadweight of a fan head comprises a U-shaped cover 5 and a fan head cover 9. The surface of the U-shaped cover 5 is detachably connected with a U-shaped connector 8. The U-shaped connector 8 and the fan head cover 9 are rotatably connected. A steel frame 10 is installed inside the fan head cover 9. A transmission assembly is installed on the surface of the steel frame 10. A balancing block 17 is installed at the end of the transmission assembly. The balancing block 17 and the U-shaped connector 8 are fixedly connected. A balancing torsion spring 18 is installed inside the balancing block 17. One end of the balancing torsion spring 18 is interconnected with the fan head cover 9, and the other end is interconnected with the U-shaped connector 8.

[0031] The transmission assembly includes an eccentric rotating block 12 and an arc-shaped connecting rod 15. The surface of the eccentric rotating block 12 is provided with a second joint 14 rotatably connected to one end of the arc-shaped connecting rod 15. One end of the balancing block 17 is provided with a third joint 16 rotatably connected to the other end of the arc-shaped connecting rod 15.

[0032] A motor 11 is installed on the surface of the steel frame 10, and a first joint 13 fixedly connected to the output end of the motor 11 is provided on the surface of the eccentric rotating block 12;

[0033] The eccentric rotating block 12 is driven to rotate by starting the motor 11. The rotation of the eccentric rotating block 12 drives one end of the arc connecting rod 15 to make a circular motion. Since the other end of the arc connecting rod 15 is connected to the third joint 16, the circular motion of one end of the arc connecting rod 15 will drive the other end to make a cyclic reciprocating motion, thereby making the balancing block 17 make a cyclic up and down rotation motion.

[0034] At the same time, since the balancing block 17 is fixedly connected to the U-shaped connector 8, when the balancing block 17 has a tendency to perform a cyclic up-and-down rotation movement when a force is applied, since the balancing block 17 is fixed, the fan head cover 9 performs a cyclic up-and-down rotation movement under the action of the reaction force according to the action force and the reaction force;

[0035] From a dynamics perspective, the generation of reaction force is based on Newton's third law. In a closed mechanical system, this interactive force is more conducive to the stability of the system. When the fan head is driven to rotate by the reaction force, the force transmission path is relatively direct, and due to the mutual constraints between the components within the system, it can better adapt to various changes in the rotation process.

[0036] It also includes a back cover 1, the top of which is fixedly connected with a steel plate 4, which is arranged between a U-shaped cover 5 and a U-shaped connector 8. The U-shaped cover 5 and the steel plate 4 are detachably connected, and the detachable connection can be achieved by bolts. The arrangement of the steel plate 4 is beneficial to increasing the strength of the U-shaped cover 5.

[0037] A threaded hole 6 is provided on the inner side of the U-shaped cover 5, and a through hole 7 used in conjunction with the threaded hole 6 is provided on the surface of the U-shaped connector 8. When the U-shaped cover 5 and the U-shaped connector 8 are aligned and connected, a detachable connection is achieved by passing a bolt through the through hole 7 and then through the threaded hole 6. By providing the threaded hole 6 and the through hole 7, it is convenient for the user to disassemble the U-shaped cover 5 and the U-shaped connector 8 from the outside, thereby facilitating maintenance.

[0038] It also includes a front cover 22, the top of the front cover 22 is fixedly connected to the U-shaped connector 8, a groove 2 is provided on the surface of the rear cover 1, a fixing block 3 is inserted in the groove 2, and the fixing block 3 is connected to the front cover 22 by bolts. When the fixing block 3 is inserted into the groove 2, the bolts first pass through the fixing block 3, then through the groove 2, and then connect to the inner side of the front cover 22, so that the fixing block 3, the rear cover 1, and the front cover 22 are connected to each other, which is conducive to ensuring the stability of the connection between the U-shaped cover 5 and the U-shaped connector 8.

[0039] The bottom end of the front cover 22 is fixedly connected to a mounting base 21, a protective cover 20 is clamped on the surface of the mounting base 21, a clamping block 19 is arranged between the rear cover 1 and the protective cover 20, the clamping block 19 is used to fix the protective cover 20 to the rear cover 1, and a control board 23 is installed on the inner side of the mounting base 21. By setting the protective cover 20, it is beneficial to protect the control board 23.

[0040] The specific solution is as follows: connect the fan head cover 9 with the fan head, install the fan support rod at the lower end of the rear cover 1 and the mounting seat 21, install the U-shaped cover 5 on the steel plate 4 by bolts, align the U-shaped connector 8 with the U-shaped cover 5, make the through hole 7 on the surface of the U-shaped connector 8 match the threaded hole 6 on the inner side of the U-shaped cover 5, then use bolts to pass through the through hole 7 and then through the threaded hole 6 to complete the connection between the U-shaped connector 8 and the U-shaped cover 5, insert the fixing block 3 into the groove 2 on the surface of the rear cover 1, and then use bolts to pass through the fixing block 3 and the groove 2 in sequence and connect to the inner side of the front cover 22, so that the fixing block 3, the rear cover 1, and the front cover 22 are connected to each other, and finally the protective cover 20 is clamped on the surface of the mounting seat 21, and the protective cover 20 is connected to the protective cover 20 by the clamping block 19. The rear cover 1 is fixed to protect the control panel 23. By starting the motor 11, the motor 11 drives the eccentric rotating block 12 to rotate. When the eccentric rotating block 12 rotates, it drives one end of the arc-shaped connecting rod 15 to make a circular motion. Since the other end of the arc-shaped connecting rod 15 is connected to the third joint 16, the other end of the arc-shaped connecting rod 15 is driven to make a cyclic reciprocating motion. The cyclic up and down reciprocating motion of the arc-shaped connecting rod 15 causes the balancing block 17 to make a cyclic up and down rotational motion. Because the balancing block 17 is fixedly connected to the U-shaped connecting head 8, and the balancing block 17 is relatively fixed in the current connection structure, according to the principle of action and reaction, the fan head cover 9 is made to make a cyclic up and down rotational motion under the action of the reaction force, thereby realizing the up and down shaking function of the fan head;

[0041] When the mechanism needs to be maintained or overhauled, first release the bolt connection between the fixing block 3, the rear cover 1, and the front cover 22, then remove the fixation between the protective cover 20 and the rear cover 1, unscrew the bolts connecting the U-shaped connector 8 and the U-shaped cover 5, and separate the U-shaped connector 8 from the U-shaped cover 5.

[0042] 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. An up and down shaking mechanism capable of balancing the deadweight of a fan head, comprising a U-shaped cover (5) and a fan head cover (9), characterized in that: The surface of the U-shaped cover (5) is detachably connected with a U-shaped connector (8), and the U-shaped connector (8) is rotatably connected to the fan head cover (9). A steel frame (10) is installed inside the fan head cover (9), and a transmission assembly is installed on the surface of the steel frame (10). A balancing block (17) is installed at the end of the transmission assembly. The balancing block (17) is fixedly connected to the U-shaped connector (8). A balancing torsion spring (18) is installed inside the balancing block (17), and one end of the balancing torsion spring (18) is interconnected with the fan head cover (9), and the other end is interconnected with the U-shaped connector (8).

2. The up and down shaking mechanism capable of balancing the deadweight of the fan head according to claim 1, characterized in that: The transmission assembly comprises an eccentric rotating block (12) and an arc-shaped connecting rod (15); a second joint (14) rotatably connected to one end of the arc-shaped connecting rod (15) is provided on the surface of the eccentric rotating block (12); and a third joint (16) rotatably connected to the other end of the arc-shaped connecting rod (15) is provided at one end of the balancing block (17).

3. The up and down shaking mechanism capable of balancing the deadweight of the fan head according to claim 2, characterized in that: A motor (11) is mounted on the surface of the steel frame (10), and a first joint (13) fixedly connected to the output end of the motor (11) is provided on the surface of the eccentric rotating block (12).

4. The up and down shaking mechanism capable of balancing the deadweight of a fan head according to claim 1, characterized in that: It also comprises a rear cover (1), the top end of which is fixedly connected to a steel plate (4), the steel plate (4) being arranged between the U-shaped cover (5) and the U-shaped connector (8), and the U-shaped cover (5) and the steel plate (4) being detachably connected.

5. The up and down shaking mechanism capable of balancing the deadweight of a fan head according to claim 1, characterized in that: The inner side of the U-shaped cover (5) is provided with a threaded hole (6), and the surface of the U-shaped connector (8) is provided with a through hole (7) used in conjunction with the threaded hole (6).

6. The up and down shaking mechanism capable of balancing the deadweight of a fan head according to claim 1, characterized in that: It also comprises a front cover (22), the top end of the front cover (22) being fixedly connected to the U-shaped connector (8).

7. The up and down shaking mechanism capable of balancing the deadweight of the fan head according to claim 6, characterized in that: A groove (2) is provided on the surface of the rear cover (1), a fixing block (3) is inserted into the groove (2), and the fixing block (3) is connected to the front cover (22) via bolts.

Images