CN220081708U

CN220081708U - Air quantity adjustable guide fan

Info

Publication number: CN220081708U
Application number: CN202321092831.7U
Authority: CN
Inventors: 王国均; 王晗烨
Original assignee: Shanghai Wuling Fan Manufacturing Co ltd
Current assignee: Shanghai Wuling Fan Manufacturing Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-11-24
Anticipated expiration: 2033-05-09

Abstract

The utility model discloses an air quantity adjustable flow guide fan, which relates to the technical field of fans and comprises a shell, wherein a rack is arranged in the shell, a double-speed motor is arranged in the rack, a fan blade is fixedly connected on an output shaft of the double-speed motor, an air inlet baffle is fixedly connected on one side of the shell far away from the rack, a plurality of air inlets are formed in the air inlet baffle, an adjusting baffle which is matched with the air inlets is movably arranged in the air inlet baffle, the adjusting baffle is fixedly connected at one end of a rotating shaft, the rotating shaft is rotatably connected on one side of the air inlet baffle, and the air quantity adjustable flow guide fan is different from the prior art, so that the air inlet on the air inlet baffle can be enlarged, the air quantity is increased, meanwhile, the rotating speed of the double-speed motor is automatically changed from low speed to high speed, the air quantity and the air discharging speed are increased, the fastest smoke discharging requirement is met, and the air quantity adjustable flow guide fan has the advantages of low manufacturing cost, convenience in overhaul and easiness in accelerating the smoke discharging speed.

Description

Air quantity adjustable guide fan

Technical Field

The utility model relates to the technical field of fans, in particular to a diversion fan with adjustable air quantity.

Background

The diversion fan is used for fire-fighting smoke discharge and ventilation in buildings with fire-fighting requirements, such as subways, tunnels, gymnasiums, high-rise buildings, underground shops, workshops, ovens and the like, and is generally a double-speed motor which is used for ventilation in normal times in low-speed operation, for example, when a fire disaster occurs, the diversion fan can be automatically switched into high-speed operation through an electric control system, and smoke is rapidly discharged within half an hour, so that personnel in the fire scene can be safely evacuated, and the property safety of the country and people can be protected.

At present, the existing diversion fan generally detects whether a fire disaster occurs through temperature sensing, then the motor is controlled to run at a high speed through an electric control system, and the following defects exist: 1. the manufacturing cost is high; 2. after too long, the electronic device ages, resulting in insensitive operation; 3. the maintenance is inconvenient; 4. the air inflow can not be adjusted, the smoke exhaust speed is limited, and therefore, the air quantity adjustable flow guiding fan is provided.

Disclosure of Invention

The utility model aims to provide a diversion fan with adjustable air quantity so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an amount of wind adjustable water conservancy diversion fan, includes the casing, install the frame in the casing, install the double-speed motor in the frame, the rigid coupling has the flabellum on the output shaft of double-speed motor, the casing is kept away from the one side rigid coupling of frame and is had the baffle that admits air, a plurality of inlet ports have been seted up on the baffle that admits air, the baffle internal activity of admitting air is equipped with the regulation baffle that uses with a plurality of inlet ports cooperation, the regulation baffle rigid coupling is in the one end department of pivot, the pivot rotates and connects in one side of the baffle that admits air, be connected with elasticity trigger assembly and variable speed control assembly on the outer wall of pivot respectively, elasticity trigger assembly and variable speed control assembly all establish in the casing, the outside both sides of casing all are provided with installation component.

Preferably, the elastic triggering component comprises a tooth block fixedly connected to the outer wall of the rotating shaft, the tooth block is meshed with a toothed plate, the toothed plate is fixedly connected to the top of the movable rod, the movable rod is movably sleeved in the casing through a fixing sleeve, a fixing block is movably sleeved on the outer wall of the movable rod, a force storage spring connected with the fixing block is sleeved on the outer wall of the movable rod, the bottom end of the movable rod extends to the lower portion of the casing and is fixedly connected with a movable ring, the movable ring is hung in a plastic buckle, the plastic buckle is installed at the bottom of the fixing plate through a bolt, and the fixing plate is fixedly connected to the bottom of the casing.

Preferably, the power spring is in a compressed state.

Preferably, the speed change control assembly comprises a control rod fixedly connected to the outer wall of the rotating shaft and a controller fixedly arranged in the casing, the controller is electrically connected with the double-speed motor, a support is fixedly connected to the controller, the inner side of the support is arc-shaped, a low-speed switch and a high-speed switch which are electrically connected with the controller are arranged on the inner walls of the two ends of the support, and one end of the control rod is positioned on the inner side of the support.

Preferably, the installation component includes the hoist and mount frame, and the inboard of hoist and mount frame has pegged graft a plurality of double-end screw rods, and the both ends of a plurality of double-end screw rods peg graft respectively in the mounting hole of casing both sides, and the both ends department of double-end screw rod all threaded connection has the nut.

Preferably, a protective net is mounted on the inner side of the casing at a position in front of the fan.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the arrangement of the elastic triggering component and the variable speed control component, the air inlet hole on the air inlet baffle plate can be enlarged, so that the air inflow is increased, meanwhile, the rotating speed of the double-speed motor is automatically changed from low speed to high speed, and the air exhaust quantity and the air exhaust speed are increased, so that the fastest smoke exhaust requirement is met;

2. through the arrangement of the installation component, the whole fan can be conveniently hoisted, so that the fan is more stable and effective in operation;

3. compared with the existing flow guiding fan, the flow guiding fan has the advantages of low manufacturing cost, sensitive work, convenient maintenance and adjustable air inflow, and is easy to accelerate the smoke exhaust speed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of an enclosure of the present utility model;

FIG. 3 is a schematic diagram of the structure of the connection of the frame and the two-speed motor of the present utility model;

FIG. 4 is a schematic illustration of the structure of the resilient triggering assembly and the shift control assembly within the housing of the present utility model;

FIG. 5 is a schematic view of the connection between the movable ring and the plastic button according to the present utility model.

In the figure: 1. a housing; 2. a frame; 3. a two-speed motor; 4. a fan blade; 5. an air inlet baffle; 6. adjusting a baffle; 7. a rotating shaft; 8. an elastic trigger assembly; 81. tooth blocks; 82. a toothed plate; 83. a movable rod; 84. a fixed sleeve; 85. a fixed block; 86. a power storage spring; 87. a movable ring; 88. a plastic buckle; 89. a bolt; 810. a fixing plate; 9. a shift control assembly; 91. a control lever; 92. a controller; 93. a bracket; 94. a low-speed switch; 95. a high-speed switch; 10. a mounting assembly; 101. hoisting the frame; 102. a double-ended screw; 103. a nut; 11. and a protective net.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, an air quantity adjustable flow guiding fan in the drawing comprises a casing 1, a frame 2 is installed in the casing 1, a double-speed motor 3 is installed in the frame 2, a fan blade 4 is fixedly connected to an output shaft of the double-speed motor 3, an air inlet baffle 5 is fixedly connected to one side of the casing 1 far away from the frame 2, a plurality of air inlets are formed in the air inlet baffle 5, an adjusting baffle 6 matched with the air inlets is movably arranged in the air inlet baffle 5, the adjusting baffle 6 is fixedly connected to one end of a rotating shaft 7, the rotating shaft 7 is rotatably connected to one side of the air inlet baffle 5, an elastic triggering assembly 8 and a speed changing control assembly 9 are respectively connected to the outer wall of the rotating shaft 7, the elastic triggering assembly 8 and the speed changing control assembly 9 are both arranged in the casing 1, and mounting assemblies 10 are respectively arranged on two sides of the outer part of the casing 1.

The elastic triggering assembly 8 comprises a tooth block 81 fixedly connected to the outer wall of the rotating shaft 7, the tooth block 81 is meshed with a tooth plate 82, the tooth plate 82 is fixedly connected to the top of a movable rod 83, the movable rod 83 is movably sleeved in the shell 1 through a fixed sleeve 84, a fixed block 85 is movably sleeved on the outer wall of the movable rod 83, a force accumulating spring 86 connected with the fixed block 85 is sleeved on the outer wall of the movable rod 83, the bottom end of the movable rod 83 extends to the lower side of the shell 1 and is fixedly connected with a movable ring 87, the movable ring 87 is hung in a plastic buckle 88, the plastic buckle 88 is installed at the bottom of a fixed plate 810 through a bolt 89, and the fixed plate 810 is fixedly connected to the bottom of the shell 1; the plastic buckle 88 is softened by the temperature rise, so that the power storage spring 86 drives the rotating shaft 7 to drive the adjusting baffle 6 to rotate under the action of elasticity, and further, the air inlet hole on the air inlet baffle 5 is enlarged, and the air inflow is increased.

The power spring 86 is in a compressed state; the power spring 86 is in an elastic power storage state, so that automatic triggering operation is facilitated.

The speed change control assembly 9 comprises a control rod 91 fixedly connected to the outer wall of the rotating shaft 7 and a controller 92 fixedly arranged in the casing 1, the controller 92 is electrically connected with the double-speed motor 3, a support 93 is fixedly connected to the controller 92, the inner side of the support 93 is arc-shaped, a low-speed switch 94 and a high-speed switch 95 which are electrically connected with the controller 92 are arranged on the inner walls of the two ends of the support 93, and one end of the control rod 91 is positioned at the inner side of the support 93; after the high speed hanging is triggered, the controller 92 controls the double-speed motor 3 to change from low speed to high speed, and increases the air discharge quantity and the air discharge speed so as to meet the fastest smoke discharge requirement.

A protective net 11 is arranged at the position in front of the fan on the inner side of the shell 1; providing protection.

In this embodiment, when a fire disaster occurs, the plastic button 88 is softened due to the too high temperature, after the plastic button 88 does not hang the movable ring 87, the movable rod 83 is pushed to move upwards under the elastic force of the power accumulating spring 86, the movable rod 83 drives the toothed plate 82 to move upwards, the toothed plate 82 drives the rotating shaft 7 to rotate through the meshing action with the toothed block 81, the rotating shaft 7 drives the adjusting baffle 6 to rotate, the adjusting baffle 6 rotates and enables the air inlet hole on the air inlet baffle 5 to become larger, meanwhile, the rotating shaft 7 rotates to drive the control rod 91 to rotate, the control rod 91 releases the low-speed switch 94 and presses the high-speed switch 95, and accordingly the double-speed motor 3 is controlled by the controller 92 to change from low speed to high speed.

Example two

In addition to the first embodiment and the description of the first embodiment, referring to fig. 1, the mounting assembly 10 in the illustration includes a hoisting frame 101, a plurality of double-headed screws 102 are inserted into the inner side of the hoisting frame 101, two ends of the double-headed screws 102 are inserted into mounting holes on two sides of the casing 1 respectively, and nuts 103 are screwed on two ends of the double-headed screws 102.

In this embodiment, the holes on the hoisting frame 101 and the casing 1 are aligned, then the double-headed screw 102 is inserted into the corresponding hole, and finally the nut 103 is used for locking.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an amount of wind adjustable water conservancy diversion fan, includes casing (1), its characterized in that: install frame (2) in casing (1), install double-speed motor (3) in frame (2), the rigid coupling has flabellum (4) on the output shaft of double-speed motor (3), one side rigid coupling that frame (2) was kept away from to casing (1) has inlet baffle (5), a plurality of inlet ports have been seted up on inlet baffle (5), inlet baffle (5) internalization is equipped with regulation baffle (6) that use with a plurality of inlet ports cooperation, regulation baffle (6) rigid coupling is in the one end department of pivot (7), pivot (7) swivelling joint is in one side of inlet baffle (5), be connected with elasticity trigger subassembly (8) and variable speed control subassembly (9) on the outer wall of pivot (7) respectively, elasticity trigger subassembly (8) and variable speed control subassembly (9) all establish in casing (1), the outside both sides of casing (1) all are provided with installation component (10).

2. The adjustable air volume flow guiding fan as claimed in claim 1, wherein: the elastic triggering assembly (8) comprises a tooth block (81) fixedly connected to the outer wall of the rotating shaft (7), the tooth block (81) is meshed with a toothed plate (82), the toothed plate (82) is fixedly connected to the top of a movable rod (83), the movable rod (83) is movably sleeved in the casing (1) through a fixed sleeve (84), a fixed block (85) is movably sleeved on the outer wall of the movable rod (83), a force accumulating spring (86) connected with the fixed block (85) is sleeved on the outer wall of the movable rod (83), the bottom end of the movable rod (83) extends to the lower portion of the casing (1) and is fixedly connected with a movable ring (87), the movable ring (87) is hung in a plastic buckle (88), the plastic buckle (88) is installed at the bottom of the fixed plate (810) through a bolt (89), and the fixed plate (810) is fixedly connected to the bottom of the casing (1).

3. The adjustable air volume flow guiding fan as claimed in claim 2, wherein: the power spring (86) is in a compressed state.

4. The adjustable air volume flow guiding fan as claimed in claim 1, wherein: the speed change control assembly (9) comprises a control rod (91) fixedly connected to the outer wall of the rotating shaft (7) and a controller (92) fixedly arranged inside the casing (1), the controller (92) is electrically connected with the double-speed motor (3), a support (93) is fixedly connected to the controller (92), the inner side of the support (93) is arc-shaped, a low-speed switch (94) and a high-speed switch (95) which are electrically connected with the controller (92) are arranged on the inner walls of the two ends of the support (93), and one end of the control rod (91) is positioned on the inner side of the support (93).

5. The adjustable air volume flow guiding fan as claimed in claim 1, wherein: the mounting assembly (10) comprises a hoisting frame (101), a plurality of double-headed screws (102) are inserted into the inner side of the hoisting frame (101), two ends of the double-headed screws (102) are inserted into mounting holes on two sides of the machine shell (1) respectively, and nuts (103) are connected with two ends of the double-headed screws (102) in a threaded mode.

6. The adjustable air volume flow guiding fan as claimed in claim 1, wherein: a protective net (11) is arranged at the position, in front of the fan, of the inner side of the shell (1).