Rotary rod switching type contra-rotating fan

Abstract

The invention discloses a rotary rod switching type contra-rotating fan, which belongs to the technical field of wind power generation and comprises an inner support system, an outer support system and blades. Blades are arranged on an inner support rotating rod of the inner support system and an outer support rotating rod of the outer support system, the blades drive the inner support system and the outer support system to rotate in the same rotating space in opposite directions, and the blades in the inner support system and the outer support system are unfolded on the downwind side to receive wind power. Meanwhile, the blades on the other side are folded under the action of the motor, in addition, parts of the outer support system can compress parts of the inner support system when moving, the blades of the inner support system move to the downwind side and move to a smaller space range under the driving of the motor at the same time, and therefore avoiding is achieved; and moreover, only the rotating rod in the inner bracket system performs position switching in the same space, so that less energy is needed during switching, and the efficiency of switching the blades and the blade bracket by the motor is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation, and in particular relates to a rotary rod switching counter-rotating wind turbine. Background Art

[0002] Wind turbines can be generally divided into two categories: 1. Horizontal axis wind turbines, where the rotor's axis of rotation is parallel to the wind direction; 2. Vertical axis wind turbines, where the rotor's axis of rotation is perpendicular to the ground or the direction of the airflow. However, existing horizontal axis wind turbines still have the following three shortcomings: (1) excessive noise; (2) unstable power generation system with large fluctuations; (3) generators and other major components are located at high altitudes, resulting in high installation and maintenance costs. Therefore, industry technicians are also actively exploring new vertical axis wind turbines.

[0003] Compared with horizontal axis wind turbines, vertical axis wind turbines have the advantages of being able to be driven by light wind and being noiseless. Not only is the structural design simple, but it also reduces the gyroscopic force of the wind wheel against the wind. However, due to the very limited windward area of ​​the vertical axis wind turbine blades, the wind-to-motor conversion efficiency is low, and the CP value of the wind turbine performance does not exceed 0.4.

[0004] According to the working principle of wind turbine blades, vertical axis wind turbines are divided into lift type wind turbines and drag type wind turbines. According to the working mechanism or overall style of wind turbines, they are mainly divided into the following twelve types:

[0005] The first category: variable pitch vertical axis wind turbines, which are equipped with various types of variable pitch mechanisms to adjust the inclination angle of the blades or the windward area of ​​the blades, so as to achieve the purpose of increasing aerodynamic efficiency or resisting strong winds. The published variable pitch vertical axis wind turbines mainly include: H-type vertical axis wind turbine CN202211311521.X, vertical axis wind turbine CN202211275138.3; The second category: blade opening and closing vertical axis wind turbines, with small blades set on the blade frame, closing the small blades on the downwind side to increase wind resistance, and opening the small blades on the windward side to reduce wind resistance, thereby increasing the wind resistance difference on both sides and improving aerodynamic efficiency. The published blade opening and closing type vertical axis wind turbines mainly include: opening and closing type vertical axis fluid wheel power generation device CN202211247798.0, a flat sail type vertical axis wind turbine CN202211132558.6; the third category: combined vertical axis wind turbine, which combines various types of wind turbines together, such as lift type vertical axis wind turbine and resistance type vertical axis wind turbine, horizontal axis wind turbine and vertical axis wind turbine, vibration generator and vertical axis wind turbine, etc. The published combined vertical axis wind turbines mainly include: vertical axis wind power generation equipment CN202211234664.5, a vertical axis wind turbine multi-layer combined wind wheel CN202222516845.9; the fourth category: diversion type vertical axis wind turbine, which sets a diversion device on the outside of the rotating body of the wind turbine, so as to utilize part of the wind energy that could not be used before, and improve the aerodynamic efficiency. The published guide-type vertical axis wind turbines mainly include: a wind gathering device for a modular vertical axis wind turbine CN202211228306.3, and a guide-type vertical axis wind turbine structure CN202221687238.2; The fifth category: Magnus type vertical axis wind turbine. The rotating cylinder in the fluid will be subjected to a force perpendicular to the rotation axis and the flow direction. This phenomenon is called the Magnus effect. The wind turbine designed using the Magnus effect is a Magnus type vertical axis wind turbine. The published Magnus type vertical axis wind turbines are mainly Magnus type wind wheels and wind turbines CN202211151317.6; Category 6: blade slotted vertical axis wind turbines, which have air slots in the blades and use the acceleration effect of the airflow passing through the air slots to improve the aerodynamic efficiency of the wind turbine. The published blade slotted vertical axis wind turbines mainly include: a vertical axis wind turbine for improving wind energy utilization CN202220539639.7, and a synthetic jet jet vertical axis wind turbine blade CN201910705420.2; Category 7: special-shaped blade vertical axis wind turbines, which improve the aerodynamic efficiency of the vertical axis wind turbine by designing blades of different shapes.The published blade slotted vertical axis wind turbines mainly include: a coaxial counter-rotating vertical axis wind turbine generator set using bionic blades CN202210194747.X, a logarithmic spiral blade vertical axis wind power generation device CN202210071312.6; the eighth category: a wind tube type vertical axis wind turbine, which directs the wind at the bottom upward by setting a vertical wind tube, and uses the upward airflow to drive the impeller to rotate and generate electricity. The published wind tube type vertical axis wind turbine is mainly a wind tube type multi-wind rotor vertical axis wind power generation device CN202111065874.1; the ninth category: a counter-rotating vertical axis wind turbine, which sets two sets of inner and outer fan blades or two sets of upper and lower fan blades, and the two sets of fan blades rotate in opposite directions in different spaces, and the two sets of fan blades are respectively connected to the stator and rotor of the generator, thereby increasing the relative rotation speed of the stator and the rotor. The published paired vertical axis wind turbines mainly include: a vertical axis dual-drive wind power generation device CN202110577345.3, a bidirectional vertical axis frame wind turbine generator set CN202011259409.7; Category 10: Folding vertical axis wind turbine, which folds or unfolds the blades through a folding mechanism to achieve the purpose of breeze starting or strong wind resistance of the wind turbine. It belongs to one of the categories of variable pitch vertical axis wind turbines, but because it mainly achieves breeze starting or strong wind resistance through folding, it is listed as a separate category. The published folding vertical axis wind turbines mainly include: a vertical axis wind turbine blade device CN202110229578.4, a vertical axis wind turbine based on a speed regulation mechanism CN202010793558.5; Category 11: Umbrella-type vertical axis wind turbine, which uses umbrellas instead of blades, opens the umbrella on the downwind side, and closes the umbrella on the windward side, thereby increasing the wind resistance difference on both sides and improving aerodynamic efficiency. It belongs to one of the categories of variable-pitch vertical axis wind turbines, but because of its particularly strange style, it is listed as a separate category. The published umbrella-type vertical axis wind turbines mainly include: vertical axis wind turbine blade device CN202010783320.4 and umbrella-type sail blade wind turbine CN200820090746.6; Category 12: high-altitude floating vertical axis wind turbine, whose working mechanism belongs to the common vertical axis wind turbine, but because it floats in the sky and can utilize the larger wind energy at high altitude, and its style is unique, it is listed as a separate category. The published high-altitude floating vertical axis wind turbines mainly include: a high-altitude floating vertical axis wind turbine generator set CN201710623545.1, a high-altitude vertical axis wind turbine generator CN201621071587.6.

[0006] The main reason why the existing vertical axis wind turbines are difficult to apply is their low efficiency. However, among the twelve existing vertical axis wind turbines, except for the guide type vertical axis wind turbine, the other types of vertical axis wind turbines are still inefficient. The main reason is that if the rotation space of the fan blades is divided into two sides, with the downwind side and the windward side each occupying half, the wind on the downwind side does positive work on the fan, and the wind on the windward side does negative work on the fan, and the resistance on the windward side cannot be completely zero, so the CP value of the existing eleven types of vertical axis fans is less than 0.5. The guide mechanism has a high application value in small fans, but in large wind turbines, it is not realistic to set up a large guide mechanism separately from the blades. Not only does it increase the cost, but the force and space problems of the large guide mechanism will limit the application of the guide type vertical axis fan.

[0007] Of course, the application of space on both sides can also be achieved by switching the blades and blade brackets through motors, but the energy required to switch the blades and blade brackets at the same time is relatively large. Summary of the invention

[0008] The purpose of the present invention is to solve the problem of low efficiency caused by large energy consumption in the existing motor switching blade and blade bracket method, and propose a rotary rod switching type counter-rotating fan, in which the blades drive the inner bracket system and the outer bracket system to rotate in opposite directions in the same rotating space under the action of wind force, and at the same time, the components in the two systems are reasonably avoided during the rotation process. When the blades in the inner bracket system are on the downwind side, they are unfolded to receive wind force, and at the same time, the blades on the other side are retracted under the action of the motor. Similarly, the outer bracket system is also the same. The downwind side of the inner bracket system is the upwind side of the outer bracket system. During the movement, the components on the outer bracket system always rotate in a plane, and the components of the inner bracket system will be compressed during the movement, thereby achieving avoidance. In addition, when the blades in the inner bracket system move to the downwind side, the blades are unfolded, and at the same time, they move to a smaller space range under the drive of the motor. When the blades in the inner bracket system move to the upwind side, the blades are retracted, and at the same time, they move to a larger space range under the drive of the motor. Through this switching, it can be achieved that the space occupied by the blades in the unfolded state is always smaller than the space occupied by the blades in the retracted state, thereby achieving the avoidance of the rotation of the blades in the inner bracket system and the outer bracket system. Moreover, during the blade rotation avoidance process in the same space, only the rotating rod in the inner bracket system is switching positions, and less energy is required for switching, which solves the problem of low efficiency caused by high energy consumption in the existing motor switching blades and blade brackets, and improves the efficiency of the motor switching blades and blade brackets.

[0009] In order to solve the above technical problems, the present invention provides a rotary rod switching counter-rotating fan, comprising: an inner support system, an outer support system and blades; under the action of wind, the blades drive the inner support system and the outer support system to rotate in opposite directions in the same rotating space, and the blades in the inner support system and the outer support system are unfolded on the downwind side to receive wind force, while the blades on the other side are retracted under the action of the motor. In addition, the components of the outer support system will compress the components of the inner support system when moving. When the blades of the inner support system move to the downwind side, they move to a smaller space range under the drive of the motor, thereby achieving avoidance.

[0010] Preferably, the inner bracket system includes a first inner bracket, a base, a second inner bracket, an upper inner rotating disk, a lower inner rotating disk, a telescopic rod, a first motor, a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a compression spring and an inner bracket rotating rod, a first inner bracket bottom rotating body is provided at the bottom end of the first inner bracket, the first inner bracket bottom rotating body is connected to the first inner bracket top connecting body through the first inner bracket connecting rod, a first inner bracket top rotating body is provided at the top end of the first inner bracket top connecting body, a first inner bracket center through hole is provided in the middle of the first inner bracket top rotating body, and the first inner bracket top rotating body is provided with a first inner bracket center through hole in the middle ... A plurality of telescopic rod first mounting holes are arranged at intervals at the bottom ends of the circular rings at both ends, a compression spring is arranged in the first mounting hole of the telescopic rod, a plurality of first motor upper mounting frames are arranged radially symmetrically on the side of the first inner bracket top rotating body, the first motor upper mounting frame is connected to the first inner bracket rod body, an inner bracket rotating rod stabilizing frame is arranged at the end of the first inner bracket rod body, a plurality of inner bracket rotating rod first stabilizing holes are arranged on the outer side of the inner bracket rotating rod stabilizing frame, an inner bracket rotating rod second stabilizing hole is arranged at one end of the first motor upper mounting frame close to the first inner bracket top rotating body, and a plurality of first motor upper stabilizing holes are arranged on the side elevation at the other end of the first motor upper mounting frame.

[0011] Preferably, the connection between the first inner bracket connecting rod and the first inner bracket bottom rotating body is a small ring, the first inner bracket bottom rotating body is a large ring, and an annular step is formed between the small ring and the large ring.

[0012] Preferably, the base includes a bottom disc and a base limiting boss protruding in the middle, and a first gear bracket and a third gear bracket are radially symmetrically arranged around the base limiting boss, and a first gear mounting hole and a second gear mounting hole are arranged on the first gear bracket and its corresponding bottom disc, a first gear is arranged in the first gear mounting hole, and a second gear is arranged in the second gear mounting hole, and a third gear mounting hole, a fourth gear mounting hole and a fifth gear mounting hole are arranged on the third gear bracket and its corresponding bottom disc, and a third gear mounting hole, a fourth gear mounting hole and a fifth gear mounting hole are arranged in the third gear mounting hole, the fourth gear mounting hole and the fifth gear mounting hole, respectively.

[0013] Preferably, the second inner bracket includes a second inner bracket bottom rotating body, a second inner bracket main ring is arranged at one end of the second inner bracket bottom rotating body, a plurality of telescopic rod second mounting holes are arranged on the top surface of the second inner bracket main ring, a plurality of inner bracket rotating rod third stabilizing frames are radially symmetrically arranged on the outer side of the second inner bracket main ring, a groove is radially arranged on the third stabilizing frame of the inner bracket rotating rod, a fourth stabilizing hole of the inner bracket rotating rod is arranged on the opposite surface of the groove and the contact surface of the second inner bracket main ring, a second inner bracket rod body is arranged on the outer side of the third stabilizing frame of the inner bracket rotating rod, a fourth stabilizing frame of the inner bracket rotating rod is arranged on the end of the second inner bracket rod body, and a plurality of inner bracket rotating rod third stabilizing holes are arranged on the outer side surface of the fourth stabilizing frame of the inner bracket rotating rod.

[0014] Preferably, the upper inner rotating disk includes a first center disk with a circular stepped edge, a plurality of pairs of first telescopic rod connecting holes are radially symmetrically distributed on the edge of the first center disk, a plurality of pairs of first motor lower mounting frames in the shape of grooves are symmetrically arranged on the outer side of the first center disk, an inner bracket rotating rod limiting groove is arranged on the outer side surface of the first motor lower mounting frame, and a motor moving rod mounting tube is arranged at the bottom.

[0015] Preferably, the lower inner rotating disk includes a second center disk with a circular stepped edge, and a plurality of pairs of second telescopic rod connecting holes are radially symmetrically distributed on the edge of the second center disk, and a plurality of pairs of inner bracket rotating rod fifth stabilization frames are symmetrically arranged on the outer side of the second center disk, and a groove is radially penetrated on the outer side of the fifth stabilization frame, and the fifth stabilization hole of the inner bracket rotating rod is arranged on the opposite outer side of the groove.

[0016] Preferably, a telescopic rod main body platform is provided in the middle of the telescopic rod, a telescopic rod limiting boss is provided at the lower end of the telescopic rod main body platform, a telescopic rod compression slope is provided on the outer side of the upper end of the telescopic rod main body platform, and a telescopic rod main rod body is provided on the inner side.

[0017] Preferably, the first motor is arranged in the first motor lower mounting frame and the first motor upper mounting frame, an inner bracket rotating rod is installed on the rotating shaft of the first motor, a motor moving rod pushing hole is arranged at the bottom of the first motor, and motor fixing rods are fixedly connected on both sides, and the length of the motor fixing rod can be telescoped when the internal electromagnet is energized forward and reversely; a motor pushing rod is installed in the motor moving rod pushing hole, and can be telescoped when the internal electromagnet is energized forward and reversely.

[0018] Preferably, the outer bracket system includes an outer bracket, a second motor, a motor mounting box and an outer bracket rotating rod, a lower outer bracket rotating body is arranged at the bottom of the outer bracket, the lower outer bracket rotating body is connected to the upper outer bracket rotating body through an outer bracket connecting rod, a bottom outer bracket limiting ring is arranged at the bottom end of the lower outer bracket rotating body, and exposed platforms are arranged on the lower outer bracket rotating body on both inner and outer sides of the lower outer bracket limiting ring, a lower inner rotating disk mounting groove is arranged in the middle of the lower outer bracket rotating body, and a plurality of outer brackets are symmetrically arranged on the outer side of the lower outer bracket rotating body. The lower rod body, an upper inner rotating disk mounting groove is arranged in the middle of the upper rotating body of the outer bracket, a plurality of outer bracket upper rod bodies are symmetrically arranged on the outer side of the upper rotating body of the outer bracket, an outer bracket rotating rod stabilizing frame is arranged at the end of the upper rod body of the outer bracket, an outer bracket rotating rod stabilizing hole is arranged on the outer side surface of the outer bracket rotating rod stabilizing frame, and an outer bracket rotating rod stabilizing frame and an outer bracket rotating rod stabilizing hole are arranged on the lower rod body of the outer bracket in the same form; the second motor is arranged on the upper rod body of the outer bracket through a motor mounting box, and the outer bracket rotating rod is fixedly arranged on the rotating shaft of the second motor.

[0019] Beneficial effects of the present invention:

[0020] In this solution, under the action of wind force, the blades drive the inner bracket system and the outer bracket system to rotate in opposite directions in the same rotating space, and at the same time, the components in the two systems are reasonably avoided during the rotation process. When the blades in the inner bracket system are on the downwind side, they are unfolded to receive wind force, and at the same time, the blades on the other side are folded under the action of the motor. The same is true for the outer bracket system. The downwind side of the inner bracket system is the upwind side of the outer bracket system. During the movement, the components on the outer bracket system always rotate in a plane, and the components of the inner bracket system are compressed during the movement, thereby achieving avoidance. In addition, when the blades in the inner bracket system move to the downwind side, the blades are unfolded, and at the same time, they move to a smaller space range under the drive of the motor. When the blades in the inner bracket system move to the upwind side, the blades are folded, and at the same time, they move to a larger space range under the drive of the motor. Through this switching, it can be achieved that the space occupied by the blades in the unfolded state is always smaller than the space occupied by the blades in the folded state, thereby achieving the avoidance of the rotation of the blades in the inner bracket system and the outer bracket system. Moreover, during the blade rotation avoidance process in the same space, only the rotating rod in the inner bracket system is switching positions, and less energy is required for switching, which solves the problem of low efficiency caused by high energy consumption in the existing motor switching blades and blade brackets, and improves the efficiency of the motor switching blades and blade brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0022] Figure 1 This is a schematic diagram of the overall assembly of the fan of the present invention;

[0023] Figure 2 The first inner stent of the present invention is Figure 1 ;

[0024] Figure 3 The first inner stent of the present invention is Figure 2 ;

[0025] Figure 4 It is a schematic diagram of a base of the present invention;

[0026] Figure 5 is a schematic diagram of a second inner support of the present invention;

[0027] Figure 6 It is a schematic diagram of the upper inner rotating disk of the present invention;

[0028] Figure 7 It is a schematic diagram of the lower inner rotating disk of the present invention;

[0029] Figure 8 It is a schematic diagram of the telescopic rod of the present invention;

[0030] Fig. 9 is a schematic diagram of a first motor of the present invention;

[0031] Fig.10 An exploded view of the inner support system of the present invention;

[0032] Fig.11 It is an assembly diagram of the inner support system of the present invention;

[0033] Fig.12 is a schematic diagram of the external support of the present invention;

[0034] Fig.13 It is a schematic diagram of an explosion of the external support system of the present invention;

[0035] Fig.14 It is a schematic diagram of assembling the external support system of the present invention;

[0036] Fig.15 It is a schematic diagram of the explosion of the overall assembly of the fan of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1000, inner bracket system; 100, first inner bracket; 101, first inner bracket bottom rotating body; 102, first inner bracket connecting rod; 103, first inner bracket top rotating body; 104, first inner bracket central through hole; 105, first motor upper mounting frame; 106, first inner bracket rod body; 107, inner bracket rotating rod stabilizing frame; 108, inner bracket rotating rod first stabilizing hole; 109, inner bracket rotating rod second stabilizing hole; 110, first motor upper stabilizing hole; 111, first inner bracket top connecting body; 112, telescopic rod first mounting hole; 200, base; 201, bottom disc; 202, base limiting boss; 203, first gear Bracket; 204, third gear bracket; 205, first gear mounting hole; 206, second gear mounting hole; 207, third gear mounting hole; 208, fourth gear mounting hole; 209, fifth gear mounting hole; 300, second inner bracket; 301, second inner bracket bottom rotating body; 302, second inner bracket main ring; 303, inner bracket rotating rod third stabilizing frame; 304, second inner bracket rod body; 305, inner bracket rotating rod fourth stabilizing frame; 306, inner bracket rotating rod third stabilizing hole; 307, telescopic rod second mounting hole; 308, inner bracket rotating rod fourth stabilizing hole; 400, upper inner rotating disk; 401, first center disk; 402, first Telescopic rod connecting hole; 403, first motor lower mounting frame; 404, inner bracket rotating rod limiting groove; 405, motor moving rod mounting tube; 420, lower inner rotating disk; 421, second center disk; 422, second telescopic rod connecting hole; 423, inner bracket rotating rod fifth stabilizing frame; 424, inner bracket rotating rod fifth stabilizing hole; 430, telescopic rod; 431, telescopic rod main body platform; 432, telescopic rod limiting boss; 433, telescopic rod compression slope; 434, telescopic rod main rod body; 440, first motor; 441, motor moving rod pushing hole; 442, motor fixing rod; 450, first gear; 460, second gear; 470, third gear Wheel; 480, fourth gear; 490, fifth gear; 500, compression spring; 510, inner bracket rotating rod; 6000, outer bracket system; 600, outer bracket; 601, outer bracket lower rotating body; 602, outer bracket bottom limiting ring; 603, lower inner rotating disk mounting groove; 604, outer bracket lower rod body; 605, outer bracket connecting rod; 606, outer bracket upper rotating body; 607, upper inner rotating disk mounting groove; 608, outer bracket upper rod body; 609, outer bracket rotating rod stabilizing frame; 610, outer bracket rotating rod stabilizing hole; 620, second motor; 630, motor mounting box; 640, outer bracket rotating rod; 700, blade. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] Example 1: Figure 1 As shown, a rotary rod switching type counter-rotating wind turbine comprises: an inner support system 1000, an outer support system 6000 and a blade 700. The blade 700 is made of a flexible material, and a stabilizing rod of a retractable length is arranged at the lower end. After installation, except for individual components of the inner support system 1000 located on the outside of the outer support system 6000, the remaining components are located on the inside of the outer support system 6000. After the wind turbine is installed as a whole, under the action of wind force, the blade 700 drives the outer support system 6000 to rotate counterclockwise while driving the inner support system 1000 to rotate clockwise. The inner support system 1000 and the outer support system 6000 rotate in opposite directions in the same rotation space, and the components in the two systems are reasonably avoided during the rotation process. When the blades in the inner support system 1000 are on the downwind side, they are unfolded to receive wind force, and at the same time, the blades on the other side are retracted under the action of the motor. Similarly, the blades in the outer support system 6000 are unfolded to receive wind force when on the downwind side, while the blades on the other side are folded under the action of the motor. The downwind side of the inner support system 1000 is the upwind side of the outer support system 6000. During the movement, the components on the outer support system 6000 always rotate in a plane, and the components of the inner support system 1000 are compressed during the movement, thereby achieving avoidance. In addition, when the blades in the inner support system 1000 move to the downwind side, the blades are unfolded, and at the same time, they are driven by the motor to move to a smaller space range. When the blades in the inner support system 1000 move to the upwind side, the blades are folded, and at the same time, they are driven by the motor to move to a larger space range. Through this switching, it can be achieved that the space occupied by the blades in the unfolded state is always smaller than the space occupied by the blades in the folded state, thereby achieving avoidance of the rotation of the blades in the inner support system 1000 and the outer support system 6000.

[0041] Figure 2 The first stent Figure 1 Schematic diagram of Figure 3 The first stent Figure 2 Schematic diagram, such as Figure 2 and Figure 3As shown, the bottom of the first inner bracket 100 is the first inner bracket bottom rotating body 101, the top is the first inner bracket top rotating body 103 and the first inner bracket top connecting body 111, and the first inner bracket connecting rod 102 connects the first inner bracket bottom rotating body 101 and the first inner bracket top connecting body 111. The first inner bracket bottom rotating body 101 is in the form of a ring, wherein the upper part is a small ring, the lower part is a large ring, and an annular step is formed between the small ring and the large ring. The first inner bracket top connecting body 111 is in the form of a ring, and the first inner bracket connecting rod 102 is in the form of a long rod. The upper part of the first inner bracket top connecting body 111 is connected to the first inner bracket top rotating body 103, the first inner bracket top rotating body 103 is in the form of a hollow circular basin, and the middle part of the first inner bracket top rotating body 103 is provided with the first inner bracket center through hole 104. The middle of the first inner bracket top rotating body 103 is disc-shaped, and the surrounding is ring-shaped. Similar to the first inner bracket bottom rotating body 101, the circular ring of the first inner bracket top rotating body 103 is also composed of two large and small circular rings, thereby forming an annular step. The bottom ends of the circular rings at the upper and lower parts of the first inner bracket top rotating body 103 are provided with telescopic rod first mounting holes 112. Four or more first motor upper mounting frames 105 are radially symmetrically arranged around the first inner bracket top rotating body 103, and the first inner bracket rod body 106 is connected to the outer side of the first motor upper mounting frame 105, and the end of the first inner bracket rod body 106 is provided with an inner bracket rotating rod stabilizing frame 107. The inner bracket rotating rod stabilizing frame 107 is provided with upper and lower inner bracket rotating rod first stabilizing holes 108, and the end of the first motor upper mounting frame 105 close to the first inner bracket top rotating body 103 is provided with an inner bracket rotating rod second stabilizing hole 109, and the end of the first motor upper mounting frame 105 close to the first inner bracket rod body 106 is provided with a first motor upper stabilizing hole 110.

[0042] Figure 4 is a schematic diagram of the base, such as Figure 4 As shown, the base 200 is in the shape of a disk with a protrusion in the middle. The bottom of the base 200 is a bottom disk 201, and a base limiting boss 202 is provided in the middle of the bottom disk 201. Two groups of first gear brackets 203 and third gear brackets 204 are provided around the base limiting boss 202. The first gear bracket 203 and the corresponding bottom disk 201 are provided with a first gear mounting hole 205 and a second gear mounting hole 206. The third gear bracket 204 and the corresponding bottom disk 201 are provided with a third gear mounting hole 207, a fourth gear mounting hole 208 and a fifth gear mounting hole 209.

[0043] Figure 5 is a schematic diagram of the second inner bracket, such as Figure 5As shown, the center of the second inner bracket 300 is a second inner bracket bottom rotating body 301. The upper end of the second inner bracket bottom rotating body 301 is provided with a second inner bracket main ring 302, and the upper end of the second inner bracket main ring 302 is provided with a second mounting hole 307 for the telescopic rod. The inner bracket rotating rod third stabilizing frame 303 is radially symmetrically arranged around the second inner bracket main ring 302, and the inner bracket rotating rod fourth stabilizing hole 308 is arranged inside the inner bracket rotating rod third stabilizing frame 303, and the outer side of the inner bracket rotating rod third stabilizing frame 303 is provided with a second inner bracket rod body 304. The end of the second inner bracket rod body 304 is provided with an inner bracket rotating rod fourth stabilizing frame 305, and the inner bracket rotating rod fourth stabilizing frame 305 is provided with two inner bracket rotating rod third stabilizing holes 306.

[0044] Figure 6 is a schematic diagram of the upper inner rotating disk, such as Figure 6 As shown, the main body of the upper inner rotating disk 400 is the first central disk 401, which is composed of a lower large disk and an upper small disk, so as to form a circular step at the edge. The first telescopic rod connecting holes 402 are radially symmetrically distributed around the first central disk 401. The first motor lower mounting frame 403 is symmetrically arranged on the outer side of the first central disk 401, and the inner bracket rotating rod limiting groove 404 is arranged on the outer side of the first motor lower mounting frame 403, and the motor moving rod mounting tube 405 is arranged at the bottom.

[0045] Figure 7 is a schematic diagram of the lower inner rotating disk, such as Figure 7 As shown, the main body of the lower inner rotating disk 420 is a second central disk 421, which is composed of an upper large disk and a lower small disk, so as to form a circular step at the edge. The second central disk 421 is radially symmetrically distributed with second telescopic rod connecting holes 422. The outer side of the second central disk 421 is symmetrically provided with an inner support rotating rod fifth stabilizing frame 423, and an inner support rotating rod fifth stabilizing hole 424 is provided inside the inner support rotating rod fifth stabilizing frame 423.

[0046] Figure 8 is a schematic diagram of the telescopic rod. Figure 8 As shown, the middle part of the telescopic rod 430 is the telescopic rod main body platform 431, the lower end of the telescopic rod main body platform 431 is provided with a telescopic rod limiting boss 432, the outer side of the upper end of the telescopic rod main body platform 431 is provided with a telescopic rod compression slope 433, and the inner side is provided with a telescopic rod main rod body 434.

[0047] Fig. 9 is a schematic diagram of the first motor, such as Fig. 9As shown, a motor moving rod pushing hole 441 is provided at the bottom of the first motor 440, and motor fixing rods 442 are fixedly connected on both sides. The length of the motor fixing rod 442 can be extended and retracted when the internal electromagnet is energized forward and reversely (this part is not shown in the figure). A motor pushing rod is installed in the motor moving rod pushing hole 441, and can be extended and retracted when the internal electromagnet is energized forward and reversely (this part is not shown in the figure).

[0048] Fig.10 This is an exploded view of the internal support system. Fig.11 This is the assembly drawing of the internal support system. Fig.10 and Fig.11 As shown, the inner bracket system 1000 is mainly composed of a first inner bracket 100, a base 200, a second inner bracket 300, an upper inner rotating disk 400, a lower inner rotating disk 420, a telescopic rod 430, a first motor 440, a first gear 450, a second gear 460, a third gear 470, a fourth gear 480, a fifth gear 490, a compression spring 500 and an inner bracket rotating rod 510.

[0049] like Figure 2 to Figure 11As shown, the first inner bracket bottom rotating body 101 on the first inner bracket 100 is inserted into the base limiting boss 202 on the base 200. The second inner bracket 300 is placed on the base 200, so that the second inner bracket bottom rotating body 301 is concentric with the first inner bracket bottom rotating body 101. The first gear 450 is installed in the first gear mounting hole 205 on the base 200, the second gear 460 is installed in the second gear mounting hole 206 on the base 200, the third gear 470 is installed in the third gear mounting hole 207 on the base 200, the fourth gear 480 is installed in the fourth gear mounting hole 208 on the base 200, and the fifth gear 490 is installed in the fifth gear mounting hole 209 on the base 200. After each gear is installed on the base 200, the second gear 460 is meshed with the bottom of the first inner bracket 100, the second gear 460 is meshed with the first gear 450, and the first gear 450 is meshed with the second inner bracket 300. Therefore, the rotation of the first inner bracket 100 can drive the second inner bracket 300 to rotate synchronously in the same direction through the first gear 450 and the second gear 460. The third gear 470 is meshed with the bottom of the first inner bracket 100, the bottom gear of the fourth gear 480 is meshed with the third gear 470, the top gear of the fourth gear 480 is meshed with the fifth gear 490, and the fifth gear 490 is meshed with the outer bracket system. Therefore, under the action of the third gear 470, the fourth gear 480 and the fifth gear 490, the inner bracket system 1000 and the outer bracket system are kept in synchronous reverse rotation. The compression spring 500 and the telescopic rod 430 are placed in the first mounting hole 112 of the telescopic rod on the first inner bracket 100 and the second mounting hole 307 of the telescopic rod on the second inner bracket 300 in sequence, and the upper inner rotating disk 400 and the lower inner rotating disk 420 are inserted into the installed outer bracket system. After the compression spring 500, the telescopic rod 430, the upper inner rotating disk 400 and the lower inner rotating disk 420 are assembled, the telescopic rod main rod body 434 on the upper telescopic rod 430 will be inserted into the first telescopic rod connecting hole 402 on the upper inner rotating disk 400 under the action of the compression spring 500, and the telescopic rod main rod body 434 on the lower telescopic rod 430 will be inserted into the second telescopic rod connecting hole 422 on the lower inner rotating disk 420 under the action of the compression spring 500. Through this connection mode, the rotation of the first inner bracket 100 will drive the synchronous and same-direction rotation of the upper inner rotating disk 400, and the rotation of the second inner bracket 300 will drive the synchronous and same-direction rotation of the lower inner rotating disk 420. Two groups of first motors 440 are installed in the first motor lower mounting frame 403 on the upper inner rotating disk 400, and the other two groups of first motors 440 are installed in the first motor upper mounting frame 105 on the first inner bracket 100.The inner support rotating rod 510 is installed on the rotating shaft of the first motor 440. The length of the inner support rotating rod 510 can be extended and retracted when the internal electromagnet is energized forward and backward (the parts are not shown in the figure). Under the action of the electromagnet inside the inner support rotating rod 510, the other end of the inner support rotating rod 510 can be inserted into the first stable hole 108 of the inner support rotating rod on the first inner support 100. When the motor push rod connected to the motor moving rod push hole 441 on the first motor 440 is extended, the first motor 440 will be separated from the first motor lower mounting frame 403 on the upper inner rotating disk 400 and enter the first motor upper mounting frame 105 on the first inner support 100. At this time, the motor fixing rod 442 on the first motor 440 is extended to be inserted into the first motor upper stable hole 110 and fixed. The position movement of the first motor 440 will simultaneously drive the movement of the inner support rotating rod 510. When the motor push rod connected to the motor moving rod push hole 441 on the first motor 440 is extended and inserted into the motor moving rod mounting tube 405 on the upper inner rotating disk 400, the motor fixing rod 442 on the first motor 440 is shortened, and then the motor push rod is retracted to the shortest position, which can drive the first motor 440 to move to the first motor lower mounting frame 403 on the upper inner rotating disk 400, and then the motor fixing rod 442 is extended to be fixed in the first motor lower mounting frame 403, and the corresponding inner bracket rotating rod 510 will also move accordingly.

[0050] Fig.12 is a schematic diagram of the external support. Fig.12 As shown, the bottom of the outer bracket 600 is provided with an outer bracket lower rotating body 601, the top is provided with an outer bracket upper rotating body 606, and an outer bracket connecting rod 605 is connected between the outer bracket lower rotating body 601 and the outer bracket upper rotating body 606. The lower end of the outer bracket lower rotating body 601 is provided with an outer bracket bottom limiting ring 602, and there are exposed platforms on the outer bracket lower rotating body 601 on both the inner and outer sides of the outer bracket bottom limiting ring 602. The middle of the outer bracket lower rotating body 601 is provided with a lower inner rotating disk mounting groove 603, and the outer side of the outer bracket lower rotating body 601 is symmetrically provided with an outer bracket lower rod body 604. An upper inner rotating disk mounting groove 607 is provided in the middle of the outer bracket upper rotating body 606, an outer bracket upper rod body 608 is symmetrically provided on the outer side of the outer bracket upper rotating body 606, an outer bracket rotating rod stabilizing frame 609 is provided at the end of the outer bracket upper rod body 608, and an outer bracket rotating rod stabilizing hole 610 is provided on the outer bracket rotating rod stabilizing frame 609. The outer bracket lower rod body 604 is also provided with an outer bracket rotating rod stabilizing frame and an outer bracket rotating rod stabilizing hole (these parts are not shown in the figure).

[0051] Fig.13 This is an exploded diagram of the external support system. Fig.14It is the assembly diagram of the external support system. Fig.13 and Fig.14 As shown, the outer support system 6000 is mainly composed of an outer support 600, a second motor 620, a motor mounting box 630 and an outer support rotating rod 640. The second motor 620 is placed on the outer support upper rod body 608 on the outer support 600, the outer support rotating rod 640 is fixed on the rotating shaft of the second motor 620, and then the second motor 620 is fixed on the outer support upper rod body 608 by using the motor mounting box 630. After installation, the other end of the outer support rotating rod 640 is inserted into the outer support rotating rod stabilizing hole 610 on the outer support rotating rod stabilizing frame 609.

[0052] Fig.15 This is an exploded schematic diagram of the overall assembly of the fan. Fig.15 As shown, a rotary rod switching counter-rotating fan described in the present invention is mainly composed of an inner support system 1000, an outer support system 6000 and blades 700. The inner support system 1000 is mainly composed of a first inner support 100, a base 200, a second inner support 300, an upper inner rotating disk 400, a lower inner rotating disk 420, a telescopic rod 430, a first motor 440, a first gear 450, a second gear 460, a third gear 470, a fourth gear 480, a fifth gear 490, a compression spring 500 and an inner support rotating rod 510. The outer support system 6000 is mainly composed of an outer support 600, a second motor 620, a motor mounting box 630 and an outer support rotating rod 640. The blades 700 are made of a flexible material, and a stabilizing rod with a retractable length is arranged at the lower end (this part of the components is not shown in the figure). Fig.10 and Fig.11 While installing the inner support system 1000 in the manner shown, the outer support 600 is inserted into the first inner support 100, wherein the outer support bottom stop ring 602 on the outer support 600 abuts against the annular step of the first inner support bottom rotating body 101 on the first inner support 100. Then the lower inner rotating disk 420 is inserted into the lower inner rotating disk mounting groove 603, and the upper inner rotating disk 400 is inserted into the upper inner rotating disk mounting groove 607. Then the inner support system 1000 and the outer support system 6000 can be installed synchronously. Then the upper end of the blade 700 is installed on the inner support rotating rod 510 and the outer support rotating rod 640. After installation, except for individual components (upper inner rotating disk 400 and lower inner rotating disk 420) in the inner support system 1000 located on the outside of the outer support system 6000, the remaining components are all located on the inside of the outer support system 6000.

[0053] After the fan is installed as a whole, under the action of wind, the blades 700 drive the outer support system 6000 to rotate counterclockwise while driving the inner support system 1000 to rotate clockwise. The inner support system 1000 and the outer support system 6000 rotate in opposite directions in the same rotation space, and the components in the two systems reasonably avoid each other during the rotation. When the blades in the inner support system 1000 are on the downwind side, they are unfolded to receive the wind force, while the blades on the other side are retracted under the action of the first motor 440. Similarly, when the blades in the outer support system 6000 are on the downwind side, they are unfolded to receive the wind force, while the blades on the other side are retracted under the action of the second motor 620. The downwind side of the inner support system 1000 is the upwind side of the outer support system 6000. During the movement, the lower rod body 604 and the upper rod body 608 of the outer support system 6000 always rotate in the same plane, and when the outer support system 6000 moves to the position of the telescopic rod 430 during the rotation, the compression inclined surface 433 of the telescopic rod will be compressed, thereby pressing the contacted telescopic rod 430 into the first mounting hole 112 of the telescopic rod or the second mounting hole 307 of the telescopic rod, so as to realize the outer support 600 passing through the corresponding parts of the inner support system 1000 during the movement. In addition, when the blades in the inner support system 1000 move to the downwind side, the first motor 440 drives the inner support rotating rod 510 to be in the first motor lower mounting frame 403 on the upper inner rotating disk 400, and when the blades in the inner support system 1000 move to the upwind side, the first motor 440 drives the inner support rotating rod 510 to be in the first motor upper mounting frame 105 on the first inner support 100. By switching the rotating rod, it can be achieved that the space occupied by the blades in the expanded state is always smaller than the space occupied by the blades in the folded state, thereby achieving the avoidance of the rotation of the blades in the inner support system 1000 and the outer support system 6000.

[0054] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. A rotary rod switching counter-rotating fan, characterized in that: The invention comprises an inner support system (1000), an outer support system (6000) and blades (700); under the action of wind, the blades (700) are arranged on an inner support rotating rod (510) of the inner support system (1000) and an outer support rotating rod (640) of the outer support system (6000); the blades (700) drive the inner support system (1000) and the outer support system (6000) to rotate in opposite directions in the same rotating space; the blades in the inner support system (1000) and the outer support system (6000) are unfolded on the downwind side to receive the wind force, while the blades on the other side are retracted under the action of a motor; in addition, the components of the outer support system (6000) compress the components of the inner support system (1000) when moving; the blades of the inner support system (1000) move to the downwind side and move to a smaller space under the drive of the motor, thereby achieving avoidance.

2. A rotary rod switching counter-rotating fan according to claim 1, characterized in that: The inner support system (1000) comprises a first inner support (100), a base (200), a second inner support (300), an upper inner rotating disk (400), a lower inner rotating disk (420), a telescopic rod (430), a first motor (440), a first gear (450), a second gear (460), a third gear (470), a fourth gear (480), a fifth gear (490), a compression spring (500) and an inner support rotating rod (510), wherein a first inner support bottom rotating body (101) is arranged at the bottom end of the first inner support (100), the first inner support bottom rotating body (101) is connected to a first inner support top connecting body (111) via a first inner support connecting rod (102), a first inner support top rotating body (103) is arranged at the top end of the first inner support top connecting body (111), and a first inner support center through hole (103) is arranged in the middle of the first inner support top rotating body (103). 4), a plurality of telescopic rod first mounting holes (112) are arranged at intervals at the bottom ends of the circular rings at the upper and lower ends of the first inner bracket top rotating body (103), a compression spring (500) is arranged in the telescopic rod first mounting hole (112), a plurality of first motor upper mounting frames (105) are arranged radially symmetrically on the side of the first inner bracket top rotating body (103), the outer side of the first motor upper mounting frame (105) is connected to the first inner bracket rod body (106), the end of the first inner bracket rod body (106) is arranged with an inner bracket rotating rod stabilizing frame (107), the outer side of the inner bracket rotating rod stabilizing frame (107) is arranged with a plurality of inner bracket rotating rod first stabilizing holes (108), one end of the first motor upper mounting frame (105) close to the first inner bracket top rotating body (103) is arranged with an inner bracket rotating rod second stabilizing hole (109), and the side elevation of the other end of the first motor upper mounting frame (105) is arranged with a plurality of first motor upper stabilizing holes (110).

3. A rotary rod switching counter-rotating fan according to claim 2, characterized in that: The connection point between the first inner support connecting rod (102) and the first inner support bottom rotating body (101) is a small circular ring, the first inner support bottom rotating body (101) is a large circular ring, and an annular step is formed between the small circular ring and the large circular ring.

4. The rotary rod switching counter-rotating fan according to claim 2, characterized in that: The base (200) comprises a bottom disc (201) and a base limiting boss (202) protruding in the middle, a first gear bracket (203) and a third gear bracket (204) are radially symmetrically arranged around the base limiting boss (202), a first gear mounting hole (205) and a second gear mounting hole (206) are arranged on the first gear bracket (203) and the corresponding bottom disc (201), a first gear (450) is arranged in the first gear mounting hole (205), and a second gear mounting hole (206) is arranged in the second gear mounting hole (206). A second gear (460) is arranged in the wheel mounting hole (206); a third gear mounting hole (207), a fourth gear mounting hole (208) and a fifth gear mounting hole (209) are arranged on the third gear bracket (204) and the corresponding bottom disc (201); a third gear (470), a fourth gear (480) and a fifth gear (490) are respectively arranged in the third gear mounting hole (207), the fourth gear mounting hole (208) and the fifth gear mounting hole (209).

5. The rotary rod switching counter-rotating fan according to claim 2, characterized in that: The second inner bracket (300) comprises a second inner bracket bottom rotating body (301), one end of the second inner bracket bottom rotating body (301) is provided with a second inner bracket main ring (302), the top surface of the second inner bracket main ring (302) is provided with a plurality of telescopic rod second mounting holes (307), a plurality of inner bracket rotating rod third stabilizing frames (303) are radially symmetrically provided on the outer side of the second inner bracket main ring (302), the inner bracket rotating rod third stabilizing frame (303) is provided with a groove in the radial direction, the inner bracket rotating rod fourth stabilizing hole (308) is provided on the surface opposite to the contact surface of the groove and the second inner bracket main ring (302), a second inner bracket rod body (304) is provided on the outer side of the inner bracket rotating rod third stabilizing frame (303), an inner bracket rotating rod fourth stabilizing frame (305) is provided at the end of the second inner bracket rod body (304), and a plurality of inner bracket rotating rod third stabilizing holes (306) are provided on the outer side surface of the inner bracket rotating rod fourth stabilizing frame (305).

6. The rotary rod switching counter-rotating fan according to claim 2, characterized in that: The upper inner rotating disk (400) comprises a first central disk (401) with an annular step-shaped edge, a plurality of pairs of first telescopic rod connection holes (402) are radially symmetrically distributed on the edge of the first central disk (401), a plurality of pairs of first motor lower mounting frames (403) in the shape of grooves are symmetrically arranged on the outer side of the first central disk (401), an inner bracket rotating rod limiting groove (404) is arranged on the outer side surface of the first motor lower mounting frame (403), and a motor moving rod mounting tube (405) is arranged at the bottom.

7. The rotary rod switching counter-rotating fan according to claim 2, characterized in that: The lower inner rotating disk (420) comprises a second central disk (421) with an annular step-shaped edge, a plurality of pairs of second telescopic rod connection holes (422) are radially symmetrically distributed on the edge of the second central disk (421), a plurality of pairs of inner support rotating rod fifth stabilizing frames (423) are symmetrically arranged on the outer side of the second central disk (421), a groove is radially penetrated on the outer side of the fifth stabilizing frame (423), and the inner support rotating rod fifth stabilizing hole (424) is arranged on the opposite outer side of the groove.

8. The rotary rod switching counter-rotating fan according to claim 2, characterized in that: A telescopic rod main body platform (431) is arranged in the middle of the telescopic rod (430), a telescopic rod limiting boss (432) is arranged at the lower end of the telescopic rod main body platform (431), a telescopic rod compression inclined surface (433) is arranged on the outer side of the upper end of the telescopic rod main body platform (431), and a telescopic rod main rod body (434) is arranged on the inner side.

9. The rotary rod switching counter-rotating fan according to claim 7, characterized in that: The first motor (440) is arranged in the first motor lower installation frame (403) and the first motor upper installation frame (105); an inner bracket rotating rod (510) is installed on the rotating shaft of the first motor (440); a motor moving rod pushing hole (441) is arranged at the bottom of the first motor (440); motor fixing rods (442) are fixedly connected on both sides; the length of the motor fixing rod (442) can be extended and retracted when the internal electromagnet is energized forward and reversely; a motor pushing rod is installed in the motor moving rod pushing hole (441), and can be extended and retracted when the internal electromagnet is energized forward and reversely.

10. The rotary rod switching counter-rotating fan according to claim 1, characterized in that: The external support system (6000) comprises an external support (600), a second motor (620), a motor mounting box (630) and an external support rotating rod (640); an external support lower rotating body (601) is arranged at the bottom of the external support (600); the external support lower rotating body (601) is connected to the external support upper rotating body (606) via an external support connecting rod (605); an external support bottom limiting ring (602) is arranged at the bottom end of the external support lower rotating body (601); exposed platforms are provided on the external support lower rotating body (601) on both inner and outer sides of the external support bottom limiting ring (602); a lower inner rotating disk mounting groove (603) is arranged in the middle of the external support lower rotating body (601); and a plurality of external support lower rotating bodies (601) are symmetrically arranged on the outer side of the external support lower rotating body (601). The rod body (604) is provided with an upper inner rotating disk mounting groove (607) in the middle of the upper rotating body (606) of the outer bracket, and a plurality of upper rod bodies (608) of the outer bracket are symmetrically arranged on the outer side of the upper rotating body (606) of the outer bracket. An outer bracket rotating rod stabilizing frame (609) is provided at the end of the upper rod body (608) of the outer bracket, and an outer bracket rotating rod stabilizing hole (610) is provided on the outer side surface of the outer bracket rotating rod stabilizing frame (609), and an outer bracket rotating rod stabilizing frame (609) and an outer bracket rotating rod stabilizing hole (610) are provided on the lower rod body (604) of the outer bracket in the same manner; the second motor (620) is arranged on the upper rod body (608) of the outer bracket through a motor mounting box (630), and the outer bracket rotating rod (640) is fixedly arranged on the rotating shaft of the second motor (620).

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