Outdoor constant-air fan
Technical Field
The invention belongs to the technical field of electric fans, and particularly relates to an outdoor constant-air fan.
Background
The existing electric fan is an indispensable electric appliance in summer, particularly for outdoor sports enthusiasts, and the outdoor winged insects and the heat are difficult to endure in summer camping, but the existing electric fan has either a large body shape or small air volume, and is difficult to carry or has small air volume. Meanwhile, when the fan is used in an outdoor environment, the air volume of the fan is small due to the existence of natural wind, the blowing experience is influenced, and especially, the air volume is reduced when the natural wind and the fan are reverse.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the outdoor constant-air fan which can be folded, has large air volume and is convenient to carry, and can ensure that the air volume is kept constant when outdoor air is fanned.
In order to solve the technical problem, the invention is solved by the following technical scheme: an outdoor constant air fan comprises a motor, wherein the motor comprises a stator with an inner ring and a rotor sleeved on two sides of the stator, a through hole is axially arranged on the stator, a supporting rod is arranged in the through hole, one end of the supporting rod is provided with a front end face, the front end face is rotatably connected with one end of a plurality of front frameworks, the periphery of the stator is rotatably connected with one end of a plurality of rear frameworks, the other ends of the front frameworks are rotatably connected with the other ends of the rear frameworks in a one-to-one correspondence manner, first bearings are arranged on the supporting rods between the front frameworks and the rear frameworks, the inner ring of each first bearing is fixedly connected with the supporting rod, blades are rotatably connected on the outer ring of each first bearing, torsional springs are arranged at the rotating positions of the outer ring of each first bearing and the blades, and a plurality of first embedded blocks are arranged on the rotor close to, the fan-shaped air quantity adjusting plate is characterized in that a first embedded groove is formed in the first bearing close to the rotor, a first polygonal snap ring is arranged on the supporting rod, a first polygonal groove is formed in the stator, the first polygonal groove is clamped with the first polygonal snap ring when the first embedded block is embedded into the first embedded groove, a clamping sleeve is detachably clamped on the supporting rod, a fan-shaped air quantity adjusting plate is rotatably arranged on the clamping sleeve, a plurality of gear contacts which are uniformly distributed along an arc line are arranged on the air quantity adjusting plate, a conducting strip is rotatably connected to the circle center of the fan-shaped air quantity adjusting plate and matched with the gear contacts to conduct electricity and is connected into a circuit of the motor, and the rotating speed of the fan is gradually reduced when the conducting strip is respectively contacted with the gear contacts along the direction of fan-out air of the. The electric fan adopting the structure can be unfolded and folded by sliding the motor; the motor is connected with a storage battery or an external power supply, when the electric fan is unfolded, the motor drives the fan blades to rotate, the front framework and the rear framework are unfolded, and the front end of the motor props against the blades, so that the blades are unfolded. The fan-shaped air quantity adjusting plate is matched with the conducting plate to realize air quantity adjustment, when wind in the same direction as the fan blows the conducting plate, the conducting plate generates an angle, so that the rotating speed of the fan is reduced, the sum of the wind blown by the fan and natural wind is kept unchanged, when wind in the opposite direction of the fan blows the conducting plate, the conducting plate generates an angle, so that the rotating speed of the fan is reduced and increased, the sum of the wind blown by the fan and the natural wind is kept unchanged, when the wind is large enough, the conducting plate rotates to the outer side of the arc-shaped adjusting plate, namely, the adjusting range of the fan is exceeded, the fan is not adjusted meaningfully, and the fan stops rotating; the size of the fixed air quantity can be adjusted by adjusting the initial angle of the arc-shaped adjusting plate.
The tail of the support rod is provided with a second bearing, the inner ring of the second bearing is fixedly connected with the support rod, the rotor is provided with a plurality of second embedded blocks close to the second bearing, the second bearing is provided with second embedded grooves close to the rotor, the support rod is provided with a second polygonal snap ring, the stator is provided with a second polygonal groove, when the second embedded blocks are embedded into the second embedded grooves, the second polygonal groove is clamped with the second polygonal snap ring, and the outer ring of the second bearing is detachably connected with a drill bit through threads. By adopting the structure, when the electric fan is folded, the motor drives the drill bit to rotate so as to conveniently drill the drill bit into the outdoor ground, thereby facilitating the positioning of the fan.
The middle part of the supporting rod is provided with a rotary joint, and the rotary joint enables the supporting rods at two sides to be fixed at any angle through adjusting nuts. With this structure, the fan can be fixed at various angles when unfolded.
Compared with the prior art, the invention has the following beneficial effects: the electric fan adopting the structure can be unfolded and folded by sliding the motor; the motor is connected with a storage battery or an external power supply, when the electric fan is unfolded, the motor drives the fan blades to rotate, the front framework and the rear framework are unfolded, and the front end of the motor props against the blades, so that the blades are unfolded. The fan-shaped air quantity adjusting plate is matched with the conducting plate to realize air quantity adjustment, when wind in the same direction as the fan blows the conducting plate, the conducting plate generates an angle, so that the rotating speed of the fan is reduced, the sum of the wind blown by the fan and natural wind is kept unchanged, when wind in the opposite direction of the fan blows the conducting plate, the conducting plate generates an angle, so that the rotating speed of the fan is reduced and increased, the sum of the wind blown by the fan and the natural wind is kept unchanged, when the wind is large enough, the conducting plate rotates to the outer side of the arc-shaped adjusting plate, namely, the adjusting range of the fan is exceeded, the fan is not adjusted meaningfully, and the fan stops rotating; the size of the fixed air quantity can be adjusted by adjusting the initial angle of the arc-shaped adjusting plate.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a first embodiment of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of a second embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description: referring to fig. 1 to 2, an outdoor constant air fan includes a motor 1, the motor 1 includes a stator 11 with an inner ring and a rotor 12 sleeved on two sides of the stator 11, the stator 11 is axially provided with a through hole 2, a support rod 3 is arranged in the through hole 2, one end of the support rod 3 is provided with a front end face 4, the front end face 4 is rotatably connected with one end of a plurality of front frameworks 5, the periphery of the stator 11 is rotatably connected with one end of a plurality of rear frameworks 6, the other ends of the plurality of front frameworks 5 are rotatably connected with the other ends of the plurality of rear frameworks 6 in a one-to-one correspondence manner, a first bearing 7 is arranged on the support rod 3 between the plurality of front frameworks 5 and the plurality of rear frameworks 6, the inner ring of the first bearing 7 is fixedly connected with the support rod 3, the outer ring of the first bearing 7 is rotatably connected with blades 8, and torsional springs are arranged at the rotating positions of, a plurality of first tabling blocks 121 are arranged on the side of the rotor 12 close to the first bearing 7, a first tabling groove 71 is arranged on the side of the first bearing 7 close to the rotor 12, a first polygonal snap ring 31 is arranged on the support rod 3, a first polygonal groove 111 is arranged on the stator 11, when the first tabling block 121 is embedded into the first tabling groove 71, the first polygonal groove 111 is clamped with the first polygonal snap ring 31, a clamping sleeve 34 is detachably clamped on the support rod 3, a fan-shaped air volume adjusting plate a is rotatably arranged on the clamping sleeve 34, a plurality of gear contacts b uniformly distributed along an arc line are arranged on the air volume adjusting plate a, a conducting strip c is rotatably connected to the center of the fan-shaped air volume adjusting plate a, the conducting strip c is matched with the gear contacts b to conduct electricity and is connected to a circuit of the motor 1, and when the fan-shaped air volume c is respectively contacted with the gear contacts b along the fan-shaped air direction, the fan- Is small. The electric fan adopting the structure can be unfolded and folded by sliding the motor; the motor is connected with a storage battery or an external power supply, when the electric fan is unfolded, the motor drives the fan blades to rotate, the front framework and the rear framework are unfolded, and the front end of the motor props against the blades, so that the blades are unfolded. The fan-shaped air quantity adjusting plate is matched with the conducting plate to realize air quantity adjustment, when wind in the same direction as the fan blows the conducting plate, the conducting plate generates an angle, so that the rotating speed of the fan is reduced, the sum of the wind blown by the fan and natural wind is kept unchanged, when wind in the opposite direction of the fan blows the conducting plate, the conducting plate generates an angle, so that the rotating speed of the fan is reduced and increased, the sum of the wind blown by the fan and the natural wind is kept unchanged, when the wind is large enough, the conducting plate rotates to the outer side of the arc-shaped adjusting plate, namely, the adjusting range of the fan is exceeded, the fan is not adjusted meaningfully, and the fan stops rotating; the size of the fixed air quantity can be adjusted by adjusting the initial angle of the arc-shaped adjusting plate.
The tail of the support rod 3 is provided with a second bearing 9, the inner ring of the second bearing 9 is fixedly connected with the support rod 3, the rotor 12 is provided with a plurality of second tabling blocks 122 near the second bearing 9, the second bearing 9 is provided with a second tabling groove 91 near the rotor 12, the support rod 3 is provided with a second polygonal snap ring 32, the stator 11 is provided with a second polygonal groove 112, when the second tabling blocks 122 are inserted into the second tabling groove 91, the second polygonal groove 112 is clamped with the second polygonal snap ring 32, and the outer ring of the second bearing 9 is detachably connected with a drill 10 through threads. By adopting the structure, when the electric fan is folded, the motor drives the drill bit to rotate so as to conveniently drill the drill bit into the outdoor ground, thereby facilitating the positioning of the fan.
The middle part of the support rod 3 is provided with a rotary joint 33, and the rotary joint 33 enables the support rods 3 at two sides to be fixed at any angle through adjusting nuts. With this structure, the fan can be fixed at various angles when unfolded.