CN217176921U

CN217176921U - Axial-flow type fire-fighting smoke exhaust fan

Info

Publication number: CN217176921U
Application number: CN202123418831.5U
Authority: CN
Inventors: 沈建民; 沈杰; 皮艳芳; 陈银
Original assignee: Jingjiang Hefa Air Conditioning Purification Equipment Factory
Current assignee: Jingjiang Hefa Air Conditioning Purification Equipment Factory
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-12
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses an axial-flow type fire-fighting smoke exhaust fan, which relates to the field of smoke exhaust fans, and adopts the technical scheme that the axial-flow type fire-fighting smoke exhaust fan comprises an air duct and an impeller, wherein a guide cover is arranged outside the air duct, a locking groove is arranged in the guide cover in a split way, a limiting block is arranged inside the locking groove, filter screens are jointly arranged at the end parts of two limiting blocks, and a clamping mechanism for limiting the limiting block is arranged inside the locking groove; the internally mounted of dryer has the mounting panel, the outside of mounting panel is rotated and is connected with the actuating lever, the actuating lever is connected with the outside of impeller, the externally mounted of dryer has the mounting box, the internally mounted of mounting box has driving motor, the inside symmetry of dryer is provided with the guide plate, the inside of dryer is inhaled with outside air current to impeller pivoted in-process, the guide plate plays the effect of water conservancy diversion this moment, the guide plate is with the leading-in inside to the mounting box of air current, thereby dispel the heat to the inside driving motor of mounting box, the realization is to driving motor's protection.

Description

Axial-flow type fire-fighting smoke exhaust fan

Technical Field

The utility model relates to a smoke exhaust fan technical field especially relates to an axial-flow type fire control smoke exhaust fan.

Background

When the impeller rotates, air enters the impeller from the air inlet in the axial direction, is pushed by the blades on the impeller to increase the energy of the air, and then flows into the guide vanes. The guide vane changes the deflection air current into axial flow, simultaneously with the leading-in diffuser pipe of gas, further converts gaseous kinetic energy into pressure energy, introduces the work pipeline at last, can discharge the smoke and dust that the conflagration produced outdoor through axial-flow type exhaust fan.

Axial-flow type exhaust fan has inside a large amount of impurity enters into the pipeline at work, impurity and impeller contact, fast-speed granule can cause the damage to the impeller, consequently can set up the filter screen in the outside of dryer, the filter screen generally is joint formula or screw installation, this kind of mounting method is dismantled and is needed consuming a large amount of manpowers with the installation, axial-flow type exhaust fan drives through driving motor simultaneously, driving motor produces a large amount of heats at long-time work, the heat is difficult to discharge, thereby cause the damage to the driving electricity, consequently, need an axial-flow type fire control smoke exhaust fan.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the filter screen of axial-flow type exhaust fan in the prior art is generally of clamping type or screw installation, the shortcoming that a large amount of manpower need be consumed in this kind of mounting method dismantlement and installation, and the axial-flow type fire control smoke exhaust fan who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an axial-flow type fire-fighting smoke exhaust fan comprises an air duct, wherein a guide cover is arranged outside the air duct, locking grooves are formed in the guide cover in a split mode, limiting blocks are arranged inside the locking grooves, a filter screen is jointly arranged at the end parts of the two limiting blocks, and a clamping mechanism used for limiting the limiting blocks is arranged inside the locking grooves;

the internally mounted of dryer has the mounting panel, the outside of mounting panel is rotated and is connected with the actuating lever, the actuating lever with the outside of impeller is connected, the externally mounted of dryer has the mounting box, the internally mounted of mounting box has driving motor, the inside symmetry of dryer is provided with the guide plate.

The above technical solution further comprises:

chucking mechanism is including seting up two circular recess of locking inslot portion, the inside sliding connection of circular recess has the locking piece, fixed spring is installed to the one end of locking piece, fixed spring keeps away from the one end of locking piece with the inside of circular recess is connected.

The limiting groove has been seted up to the inside of locking groove, the inside sliding connection of limiting groove has the extrusion piece, the externally mounted of extrusion piece has pressure spring, pressure spring keeps away from the one end of extrusion piece with the inside of limiting groove is connected.

The outside of dryer has been seted up and has been run through the groove, driving motor's output shaft outside is around being equipped with the belt, the belt passes through run through the groove to the inside of dryer, the belt with the outside of actuating lever is around establishing mutually.

The guide plate is arranged inside the through groove.

The section of the locking block is in a slope shape, the base is installed on one side, away from the mounting box, of the air duct, the clamping grooves are symmetrically formed in the outer portion of the air guide sleeve, and the clamping blocks are symmetrically installed on the outer portion of the filter screen.

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

1. the utility model discloses in, during the use, align two stoppers on the filter screen with the outside of locking piece, promote the filter screen towards the direction of locking piece, because the cross-section of locking piece is slope form, thereby make the locking piece slide in the inside of circular recess, the stopper contacts with the extrusion piece this moment, the stopper enters into the inside back of locking groove, because the another side of locking piece does not set up the inclination, use under the cooperation of compression spring and extrusion piece, thereby realize the quick installation to the filter screen, the availability factor of axial-flow type exhaust fan has been increased.

2. The utility model discloses in, the impeller pivoted in-process inhales the inside of dryer with outside air current, and the guide plate plays the effect of water conservancy diversion this moment, and the guide plate is with the leading-in inside to the mounting box of air current to dispel the heat to the inside driving motor of mounting box, realize the protection to driving motor.

Drawings

Fig. 1 is a schematic perspective view of an axial-flow type fire-fighting smoke exhaust fan provided by the present invention;

fig. 2 is a schematic view of a first internal structure of the present invention;

fig. 3 is a schematic diagram of a second internal structure of the present invention;

fig. 4 is an enlarged schematic view of a structure in fig. 2.

In the figure: 1. an air duct; 2. a pod; 3. mounting a box; 4. a filter screen; 5. a base; 6. A clamping block; 7. a card slot; 8. an impeller; 9. a drive motor; 10. a belt; 11. a through groove; 12. A baffle; 13. mounting a plate; 14. a locking groove; 15. a limiting block; 16. a limiting groove; 17. A pressure spring; 18. a limiting block; 19. a circular groove; 20. a locking block; 21. the spring is fixed.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-4, the axial-flow type fire-fighting smoke exhaust fan provided by the utility model comprises an air duct 1, wherein a guide hood 2 is installed outside the air duct 1, a locking groove 14 is arranged on the outside of the guide hood 2 in a split manner, a limiting block 15 is arranged inside the locking groove 14, filter screens 4 are jointly installed at the end parts of the two limiting blocks 15, and a clamping mechanism for limiting the limiting blocks 15 is arranged inside the locking groove 14;

the mounting plate 13 is mounted inside the air duct 1, the driving rod is rotatably connected to the outside of the mounting plate 13 and is connected with the outside of the impeller 8, the mounting box 3 is mounted outside the air duct 1, and the driving motor 9 is mounted inside the mounting box 3;

the clamping mechanism comprises circular grooves 19 formed in the locking groove 14, the two circular grooves 19 are symmetrically arranged, locking blocks 20 are connected to the inner portions of the circular grooves 19 in a sliding mode, one ends of the locking blocks 20 are provided with fixing springs 21, and the ends, far away from the locking blocks 20, of the fixing springs 21 are connected with the inner portions of the circular grooves 19;

a limiting groove 16 is formed in the locking groove 14, an extrusion block 18 is connected to the inside of the limiting groove 16 in a sliding mode, a pressure spring 17 is installed outside the extrusion block 18, and one end, far away from the extrusion block 18, of the pressure spring 17 is connected with the inside of the limiting groove 16;

a through groove 11 is formed in the outer part of the air duct 1, a belt 10 is wound on the outer part of an output shaft of the driving motor 9, the belt 10 penetrates into the air duct 1 through the through groove 11, and the belt 10 is wound on the outer part of the driving rod;

the section of the locking block 20 is slope-shaped, the base 5 is installed on one side, away from the mounting box 3, of the air duct 1, the clamping grooves 7 are symmetrically formed in the outer portion of the air guide sleeve 2, and the clamping blocks 6 are symmetrically installed in the outer portion of the filter screen 4.

An axial-flow type fire-fighting smoke exhaust fan based on the first embodiment has the working principle that when the axial-flow type fire-fighting smoke exhaust fan works, the driving motor 9 is started, the driving motor 9 drives the driving rod to rotate through the belt 10, the driving rod drives the impeller 8 to rotate in the rotating process, the impeller 8 rotates out to generate negative pressure, and therefore external airflow is sucked into the air duct 1 and then discharged;

when the filter screen 4 needs to be replaced after long-time work, the two locking blocks 20 are pushed outwards, the limiting block 15 is pushed out of the locking groove 14 through the extrusion block 18 under the action of the self elastic force of the pressure spring 17, the limiting block 15 is further detached, and then impurities filtered outside the filter screen 4 are cleaned;

when needs are installed filter screen 4, with two stopper 15 on the filter screen 4 with the outside of locking piece 20 is aligned mutually, promote filter screen 4 towards the direction of locking piece 20, because the cross-section of locking piece 20 is slope form, thereby make locking piece 20 slide in the inside of circular recess 19, stopper 15 contacts with extrusion piece 18 this moment, stopper 15 enters into the inside back of locking groove 14, because the another side of locking piece 20 does not set up the inclination, under pressure spring 17 and extrusion piece 18's cooperation is used, the both sides of stopper 15 respectively with locking piece 20 and extrusion piece 18 counterbalance tightly, thereby realize the quick installation to filter screen 4, axial-flow type exhaust fan's availability factor has been increased, fixture block 6 is pressed close to with the inside of draw-in groove 7 this moment, filter screen 4's stability has been guaranteed.

Example two

As shown in fig. 1 to 4, based on the first embodiment, the air duct 1 is symmetrically provided with the air deflectors 12 inside, the air deflectors 12 are installed inside the through groove 11, and the air deflectors 12 are symmetrically arranged inside the through groove 11.

Design like this in this embodiment to, the during operation, 8 pivoted in-process of impeller inhales the inside of dryer 1 with outside air current, and guide plate 12 plays the effect of water conservancy diversion this moment, and guide plate 12 is with the leading-in inside to mounting box 3 of air current to dispel the heat to the inside driving motor of mounting box 3, realize the protection to driving motor, the baffle is installed to driving motor 9's bottom, can avoid the dust directly to contact with driving motor 9.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The axial-flow type fire-fighting smoke exhaust fan comprises an air duct (1) and an impeller (8), and is characterized in that a guide hood (2) is installed outside the air duct (1), a locking groove (14) is formed in the guide hood (2) in a split mode, a limiting block (15) is arranged inside the locking groove (14), a filter screen (4) is installed at the end portions of the two limiting blocks (15) together, and a clamping mechanism used for limiting the limiting block (15) is arranged inside the locking groove (14);

the internally mounted of dryer (1) has mounting panel (13), the outside rotation of mounting panel (13) is connected with the actuating lever, the actuating lever with the outside of impeller (8) is connected, the externally mounted of dryer (1) has mounting box (3), the internally mounted of mounting box (3) has driving motor (9), the inside symmetry of dryer (1) is provided with guide plate (12).

2. An axial-flow type fire-fighting smoke exhaust fan according to claim 1, wherein the clamping mechanism comprises two circular grooves (19) formed inside the locking groove (14), a locking block (20) is slidably connected inside the circular grooves (19), a fixing spring (21) is installed at one end of the locking block (20), and one end of the fixing spring (21) far away from the locking block (20) is connected with the inside of the circular grooves (19).

3. The axial-flow type fire-fighting smoke exhaust fan according to claim 2, wherein a limiting groove (16) is formed in the locking groove (14), an extrusion block (18) is slidably connected to the inside of the limiting groove (16), a pressure spring (17) is installed outside the extrusion block (18), and one end, far away from the extrusion block (18), of the pressure spring (17) is connected with the inside of the limiting groove (16).

4. The axial-flow type fire-fighting smoke exhaust fan according to claim 3 is characterized in that a through groove (11) is formed in the outer portion of the air duct (1), a belt (10) is wound around the outer portion of an output shaft of the driving motor (9), the belt (10) penetrates into the air duct (1) through the through groove (11), and the belt (10) and the outer portion of the driving rod are wound.

5. An axial flow fire fighting smoke exhaust fan according to claim 4 wherein said deflector (12) is mounted inside said through slot (11).

6. The axial-flow type fire-fighting smoke exhaust fan according to claim 5, wherein the cross section of the locking block (20) is in a slope shape, a base (5) is installed on one side, away from the mounting box (3), of the air duct (1), clamping grooves (7) are symmetrically formed in the outer portion of the air guide sleeve (2), and clamping blocks (6) are symmetrically installed in the outer portion of the filter screen (4).