A kind of air inlet is inserted with the pipeline fan of guide duct
Technical field
The utility model relates to the pipeline fans that aeration technology field more particularly to a kind of air inlet are inserted with guide duct.
Background technique
Pipeline fan under the prior art, since air inlet is identical with the air duct structure of setting at air outlet, and two air hoses
Internal diameter it is also identical so that the wind pressure of the pipeline fan can only be adjusted by the revolving speed of motor and the blade profile of flabellum
It is whole, and adjust by this method, it has not been convenient to it operates and cost is also relatively high.
Utility model content
The purpose of this utility model is to provide the pipeline fan that a kind of air inlet is inserted with guide duct, the pipeline fan sides
Just wind pressure is adjusted, it is at low cost and facilitate operation.
For this purpose, the utility model uses following technical scheme:
A kind of air inlet is inserted with the pipeline fan of guide duct, the wind including blower, the air outlet for being sheathed on the blower
Manage and be inserted in the guide duct of the air inlet of the blower;The guide duct includes the air inlet for being inserted in the blower
The coaxial one of plug division, and expose to the air dam on the outside of the air inlet of the blower, the plug division and the air dam
Molding, the plug division are in hollow truncated cone-shaped setting, and the outer peripheral surface of the plug division is circumferentially evenly equipped with a plurality of triangle positioning
Muscle is provided with flexibly positioned arm, the triangle positioning bar and the flexibly positioned arm between the adjacent triangle positioning bar
It is inconsistent with the inner wall of the air inlet of the blower respectively;The cavity inner wall of the air inlet of the blower is evenly distributed in limit convex
It rises, the end face of Single port of the guide duct far from the air dam contacts at the retention bead, and the guide duct is separate
The outer peripheral surface of the Single port of the air dam and the cavity inner wall of the air inlet of the blower fit closely;The pipe of the air dam
Mouth internal diameter is less than the spout diameter of the plug division and the internal diameter of the air hose.
Wherein, the blower includes Blower Housing, the fixing seat of air outlet for being coaxially anchored on the Blower Housing, circumference
Be distributed in multiple diversion fan blades between the fixing seat and the inner wall of the Blower Housing, be set up in the Blower Housing with
The motor of fixing seat fastening, be anchored on the motor drive shaft flabellum and tangent be set to the Blower Housing
The pedestal of outer peripheral surface.
Wherein, the cavity inner wall annular of the one end of the Blower Housing far from the fixing seat is recessed with locating slot, described
Flexibly positioned arm fastens with the locating slot.
The utility model has the beneficial effects that the utility model include blower, be sheathed on the blower air outlet air hose,
And it is inserted in the guide duct of the air inlet of the blower;The guide duct includes the grafting for being inserted in the air inlet of the blower
Portion, and the air dam on the outside of the air inlet of the blower is exposed to, the plug division and the air dam are coaxially integrally formed,
The plug division is in hollow truncated cone-shaped setting, and the outer peripheral surface of the plug division is circumferentially evenly equipped with a plurality of triangle positioning bar, phase
Be provided with flexibly positioned arm between the adjacent triangle positioning bar, the triangle positioning bar and the flexibly positioned arm respectively with
The inner wall of the air inlet of the blower is inconsistent;The cavity inner wall of the air inlet of the blower is evenly distributed in retention bead, institute
The end face for stating Single port of the guide duct far from the air dam contacts at the retention bead, and the guide duct is led far from described
The outer peripheral surface of the Single port in wind portion and the cavity inner wall of the air inlet of the blower fit closely;The spout diameter of the air dam
Less than the spout diameter of the plug division and the internal diameter of the air hose.With the pipeline fan that this structure designs, guide duct can be passed through
With the difference of air hose internal diameter, the wind pressure of the pipeline fan is effectively adjusted, and easy to operate at low cost.
Detailed description of the invention
Fig. 1 is the first axonometric drawing of the pipeline fan that a kind of air inlet of the utility model is inserted with guide duct.
Fig. 2 is the second axonometric drawing of the pipeline fan that a kind of air inlet of the utility model is inserted with guide duct.
Fig. 3 is the axonometric drawing of guide duct in Fig. 1.
Fig. 4 is the first axonometric drawing of blower in Fig. 1.
Fig. 5 is the second axonometric drawing of blower in Fig. 1.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figures 1 to 5, the pipeline fan that a kind of air inlet is inserted with guide duct, including wind are present embodiments provided
Machine 1, be sheathed on the blower 1 air outlet air hose 2 and be inserted in the blower 1 air inlet guide duct 3;It is described
Guide duct 3 includes the plug division 31 for being inserted in the air inlet of the blower 1, and is exposed on the outside of the air inlet of the blower 1
Air dam 32, the plug division 31 and the air dam 32 be coaxially integrally formed, and the plug division 31 is in hollow truncated cone-shaped
Setting, the outer peripheral surface of the plug division 31 are circumferentially evenly equipped with a plurality of triangle positioning bar 311, the adjacent triangle positioning bar
Be provided with flexibly positioned arm 312 between 311, the triangle positioning bar 311 and the flexibly positioned arm 312 respectively with the wind
The inner wall of the air inlet of machine 1 is inconsistent;The cavity inner wall of the air inlet of the blower 1 is evenly distributed in retention bead, described to lead
The end face of Single port of the air hose 3 far from the air dam 32 contacts at the retention bead, and the guide duct 3 is led far from described
The outer peripheral surface of the Single port in wind portion 32 and the cavity inner wall of the air inlet of the blower 1 fit closely;The pipe of the air dam 32
Mouth internal diameter is less than the spout diameter of the plug division 31 and the internal diameter of the air hose 2.
Specifically, the blower 1 includes Blower Housing 11, is coaxially anchored on the Blower Housing 11 in the present embodiment
Multiple flow-guide fans of the fixing seat 12, circumference uniform distribution of air outlet between the fixing seat 12 and the inner wall of the Blower Housing 11
Leaf 13 is set up in the Blower Housing 11 and the motor of the fixing seat 12 fastening, the drive shaft that is anchored on the motor
Flabellum 14 and the tangent pedestal 15 for being set to 11 outer peripheral surface of Blower Housing, the Blower Housing 11 is far from the fixation
The cavity inner wall annular of one end of seat 12 is recessed with locating slot, and the flexibly positioned arm 312 fastens with the locating slot.
The internal diameter of the pipeline fan designed using the above structure, the guide duct plugged due to air inlet is less than in air hose
Diameter, it is thus possible to by the change of intake, effectively adjust pipeline wind in the case where motor speed and flabellum shape invariance
The wind pressure of machine, simultaneously because the periphery of guide duct plug division is provided with triangle positioning bar 311 and flexibly positioned arm 312, because
And reliable and stable connection can be also formed with the air inlet of blower 1, but also can easily dismount.
Technical principle of the utility model has been described above with reference to specific embodiments.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model,
These modes are fallen within the protection scope of the utility model.