CN216665994U

CN216665994U - Novel axial flow smoke exhaust fan

Info

Publication number: CN216665994U
Application number: CN202122284410.1U
Authority: CN
Inventors: 胡宗远
Original assignee: Fujian Changyuan Ventilation Equipment Co ltd
Current assignee: Fujian Changyuan Ventilation Equipment Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-06-03
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a novel axial flow smoke exhaust machine, which comprises an axial flow fan cover, wherein an inner cavity of the axial flow fan cover is provided with an axial flow fan, the output end of the axial flow fan is fixedly connected with a mounting seat, the opposite two side walls of the mounting seat are rotatably connected with connecting rods, the ends, far away from each other, of the two connecting rods are fixedly connected with blades, an adjusting component is respectively and fixedly connected with one end, penetrating through the side wall of the mounting seat, of the two connecting rods, comprises two groups of driven bevel gears and a group of driving bevel gears, the two groups of driven bevel gears are respectively sleeved at the mutually close ends of the two groups of connecting rods, the driving bevel gears are respectively meshed and connected with the two groups of driven bevel gears, the side wall of the inner cavity of the mounting seat is rotatably connected with a rotating rod, the free end of the rotating rod penetrates through the inner cavity of the driving bevel gears and is slidably connected with a sliding rod, the two groups of connecting rods can be driven to rotate for a certain angle by rotating the sliding rod, so as to adjust the angles of the two groups of blades, and the air inlet amount of the axial flow smoke exhaust fan can be conveniently adjusted by adjusting the angle of the blades.

Description

Novel axial flow smoke exhaust machine

Technical Field

The utility model relates to the technical field of axial flow smoke exhaust fans, in particular to a novel axial flow smoke exhaust fan.

Background

At present, the axial flow fan has wide application, the airflow of the axial flow fan is in the same direction with the axial direction of the fan blade, such as an electric fan, and an air conditioner external unit fan is an axial flow type running fan. The term "axial flow" is used because the air flows parallel to the axis of the fan, which is typically used in applications where the flow requirements are high and the pressure requirements are low, and the axial fan holds a position and moves the air. The axial-flow type fire-fighting smoke exhaust fan mainly comprises an impeller, a casing, a motor and other parts, and is generally made of steel plates. Axial-flow type fire-fighting smoke-discharging fan is widely used in various ventilation and smoke-discharging environments due to its high performance, reliability and maintainability.

The blade angle of the impeller of the existing smoke exhaust fan cannot be adjusted, so that the air quantity can be adjusted only from the aspect of the rotating speed of the impeller or devices such as an air quantity adjusting valve and the like are added, the motor needs to be controlled in the aspect of the rotating speed, the operation is very troublesome, and the cost is increased by installing the air quantity adjusting valve. Based on the above, the utility model designs a novel axial flow smoke exhaust fan to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel axial flow smoke exhaust fan to solve the technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel axial flow smoke exhaust machine comprises an axial flow fan cover, wherein an axial flow fan is arranged in the inner cavity of the axial flow fan cover, the output end of the axial flow fan is fixedly connected with a mounting seat, connecting rods are rotatably connected to two opposite side walls of the mounting seat, one ends, far away from each other, of two groups of the connecting rods are fixedly connected with blades, and an adjusting assembly is arranged in the inner cavity of the mounting seat and is fixedly connected with one end, penetrating through the side wall of the mounting seat, of the two groups of the connecting rods respectively;

the adjusting assembly comprises two groups of driven bevel gears and a group of driving bevel gears, the two groups of driven bevel gears are respectively sleeved at one ends, close to each other, of the two groups of connecting rods, the two groups of driven bevel gears are arranged oppositely, the driving bevel gears are respectively meshed with the two groups of driven bevel gears, the driving bevel gears are located between the two groups of driven bevel gears, the side wall of the inner cavity of the mounting seat is rotatably connected with a rotating rod, the free end of the rotating rod penetrates through the inner cavity of the driving bevel gear and is slidably connected with a sliding rod, and the sliding rod is located in the inner cavity of the rotating rod;

the side wall that the dwang was kept away from to the mount pad sets up the through-hole of mutually supporting with the slide bar, the through-hole can be dismantled and be connected with the cap, cap one end run through the through-hole and with slide bar free end looks butt.

Preferably, the cap is connected with the through hole through threads, the side wall of the inner cavity of the through hole is provided with internal threads, and the outer wall of the cap is provided with external threads.

Preferably, the adjusting component further comprises an adjusting handle, the adjusting handle is detachably inserted into the inner cavity of the sliding rod, a first limiting groove is formed in the inner cavity of the opening of the free end of the sliding rod, and a first limiting strip matched with the first limiting groove is arranged on the outer wall of the adjusting handle.

Preferably, a second limiting groove is formed in the side wall of the inner cavity of the rotating rod, a second limiting strip matched with the second limiting groove is arranged on the outer wall of the sliding rod, and the second limiting strip is connected with the second limiting groove in a sliding mode.

Preferably, the mount pad inner chamber rigid coupling has two sets of dead levers, and two sets of dead levers all set up side by side with the dwang and lie in the dwang both sides respectively, and is two sets of the equal rigid coupling in dead lever free end has the seat of rotating, and two sets of connecting rods run through two sets of seat inner chambers of rotating respectively.

Preferably, the side surfaces of the sliding rod and the cap, which are close to each other, are both subjected to sanding treatment.

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

according to the utility model, the mounting seat, the connecting rods, the blades, the driven bevel gear, the driving bevel gear, the rotating rod and the sliding rod are arranged, so that the two groups of connecting rods can be driven to rotate for a certain angle by rotating the sliding rod, the angles of the two groups of blades are adjusted, the air intake of the axial flow smoke exhaust fan is conveniently adjusted by adjusting the angles of the blades, the rotation speed of the impeller and the like are not needed, and the production cost of the smoke exhaust fan is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an internal structure of the mounting base of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of another internal structure of the mounting base of the present invention;

FIG. 5 is a schematic sectional view showing a slide bar according to the present invention;

fig. 6 is a schematic structural view of an adjusting handle in the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-axial flow fan cover, 2-axial flow fan, 3-mounting seat, 4-connecting rod, 5-blade, 6-adjusting component, 61-driven bevel gear, 62-driving bevel gear, 63-rotating rod, 64-sliding rod, 641-first limiting groove, 65-adjusting handle, 651-first limiting strip, 7-through hole, 71-internal thread, 8-cap, 81-external thread, 9-fixing rod and 10-rotating seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a novel axial flow smoke exhaust machine comprises an axial flow fan cover 1, wherein an inner cavity of the axial flow fan cover 1 is provided with an axial flow fan 2, an output end of the axial flow fan 2 is fixedly connected with a mounting seat 3, two opposite side walls of the mounting seat 3 are rotatably connected with connecting rods 4, one ends, far away from each other, of two groups of connecting rods 4 are fixedly connected with blades 5, an inner cavity of the mounting seat 3 is provided with an adjusting component 6, and the adjusting component 6 is fixedly connected with one end, penetrating through the side wall of the mounting seat 3, of the two groups of connecting rods 4 respectively;

the adjusting assembly 6 comprises two groups of driven bevel gears 61 and a group of driving bevel gears 62, the two groups of driven bevel gears 61 are respectively sleeved at one ends, close to each other, of the two groups of connecting rods 4, the two groups of driven bevel gears 61 are oppositely arranged, the driving bevel gears 62 are respectively meshed with the two groups of driven bevel gears 61, the driving bevel gears 62 are located between the two groups of driven bevel gears 61, the side wall of the inner cavity of the mounting seat 3 is rotatably connected with rotating rods 63, the free ends of the rotating rods 63 penetrate through the inner cavity of the driving bevel gears 62 and are slidably connected with sliding rods 64, and the sliding rods 64 are located in the inner cavities of the rotating rods 63;

the through-hole 7 that mutually supports with slide bar 64 is seted up to a lateral wall that the dwang 63 was kept away from to mount pad 3, and through-hole 7 can be dismantled and be connected with

cap

8, and 8 one ends of cap run through-hole 7 and with slide bar 64 free end looks butt.

Specifically, the cap 8 is connected with the through hole 7 through threads, the inner cavity side wall of the through hole 7 is provided with internal threads 71, and the outer wall of the cap 8 is provided with external threads 81, so that the cap can be conveniently mounted and dismounted.

Concretely, adjusting part 6 still includes adjusting handle 65, adjusting handle 65 with can dismantle and peg graft at the slide bar 64 inner chamber, first spacing groove 641 has been seted up to slide bar 64 free end opening inner chamber, adjusting handle 65 outer wall is provided with the first spacing strip 651 of mutually supporting with first spacing groove 641 for can rotate the slide bar through adjusting handle, thereby make the regulation of blade angle more convenient.

Specifically, the second spacing groove has been seted up to dwang 63 inner chamber lateral wall, and slide bar 64 outer wall is provided with the spacing strip of second of mutually supporting with the second spacing groove, and second spacing strip and second spacing groove sliding connection, and the mutual slip between the slide bar of being convenient for and the dwang just can play spacing effect to make the slide bar rotate and can drive the dwang and rotate.

Specifically, 3 inner chamber rigid couplings of mount pad have two sets of dead levers 9, and two sets of dead levers 9 all set up side by side with dwang 63 and are located dwang 63 both sides respectively, and the equal rigid coupling of two sets of dead levers 9 free ends has a rotation seat 10, and two sets of connecting rods 4 run through two sets of rotation seat 10 inner chambers respectively for setting through dead lever and rotation seat can improve the stability of two sets of connecting rods, thereby guarantee blade pivoted stability.

Specifically, the side surfaces of the slide bar 64 and the cap 8, which are close to each other, are both subjected to sanding treatment, so that the friction force between the slide bar and the cap can be improved, and the stability of the slide bar is ensured.

One specific application example of this embodiment is:

the device is a novel axial flow smoke exhaust machine, and when the device works, the axial flow smoke exhaust machine is arranged at a working position.

When the air intake of the smoke exhaust ventilator needs to be adjusted, the cap 8 is taken down, the sliding rod 64 is pulled out through the through hole 7, the surface of the mounting seat 3 is exposed when the sliding rod 64 is pulled out, the adjusting handle 65 is inserted into the sliding rod 64, the first limiting strip 651 is inserted into the first limiting groove 641, the adjusting handle 65 is rotated, the adjusting handle 65 rotates to drive the sliding rod 64 and the rotating rod 63 to rotate, so that the driving bevel gear 62 is driven to rotate, the driving bevel gear 62 drives the driven bevel gear 61 to rotate, the connecting rod 4 and the blades 5 are driven to rotate, and the angles of the blades 5 are adjusted, so that the air intake of the smoke exhaust ventilator is adjusted;

after the adjustment is completed, the adjustment handle 65 is taken down, the sliding rod 64 is pushed back, and then the cap 8 is screwed to enable the cap 8 to be abutted against the sliding rod 64, so that the sliding rod 64 is fixed to prevent the sliding rod 64 from rotating, and the adjustment of the angle of the blade 5 is completed.

And dead lever 9 and the seat 10 that rotates of mount pad 3 inside can play the effect of stable stay to connecting rod 4 and blade 5, guarantee the stability of connecting rod 4, and rotate the seat 10 inner chamber and set up a set of rolling bearing and make connecting rod 4 run through the rolling bearing inner chamber.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like are used in the orientation or positional relationship indicated on the drawings only for the convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a novel axial fan induced-draft fan, includes axial fan cover (1), axial fan cover (1) inner chamber is provided with axial fan (2), its characterized in that: the output end of the axial flow fan (2) is fixedly connected with a mounting seat (3), the two opposite side walls of the mounting seat (3) are rotatably connected with connecting rods (4), the ends, far away from each other, of the two groups of connecting rods (4) are fixedly connected with blades (5), an inner cavity of the mounting seat (3) is provided with an adjusting component (6), and the adjusting component (6) is fixedly connected with one end, penetrating through the side wall of the mounting seat (3), of the two groups of connecting rods (4) respectively;

the adjusting assembly (6) comprises two groups of driven bevel gears (61) and a group of driving bevel gears (62), the two groups of driven bevel gears (61) are respectively sleeved at one ends, close to each other, of the two groups of connecting rods (4), the two groups of driven bevel gears (61) are oppositely arranged, the driving bevel gears (62) are respectively meshed with the two groups of driven bevel gears (61), the driving bevel gears (62) are located between the two groups of driven bevel gears (61), the side wall of the inner cavity of the mounting seat (3) is rotatably connected with rotating rods (63), the free ends of the rotating rods (63) penetrate through the inner cavity of the driving bevel gears (62) and are slidably connected with sliding rods (64), and the sliding rods (64) are located in the inner cavity of the rotating rods (63);

the utility model discloses a slide bar (64) is including dwang (63), mount pad (3) keep away from a lateral wall of dwang (63) and set up through-hole (7) of mutually supporting with slide bar (64), through-hole (7) can be dismantled and be connected with cap (8), cap (8) one end run through-hole (7) and with slide bar (64) free end butt.

2. The novel axial flow smoke exhaust fan according to claim 1, wherein: through threaded connection between cap (8) and through-hole (7), through-hole (7) inner chamber lateral wall is provided with internal thread (71), cap (8) outer wall is provided with external screw thread (81).

3. The novel axial flow smoke exhaust fan according to claim 1, wherein: the adjusting assembly (6) further comprises an adjusting handle (65), the adjusting handle (65) is detachably inserted into an inner cavity of the sliding rod (64), a first limiting groove (641) is formed in an inner cavity of a free end opening of the sliding rod (64), and a first limiting strip (651) matched with the first limiting groove (641) is arranged on the outer wall of the adjusting handle (65).

4. The novel axial flow smoke exhaust fan according to claim 1, wherein: second spacing groove has been seted up to dwang (63) inner chamber lateral wall, slide bar (64) outer wall is provided with the spacing strip of second that mutually supports with the second spacing groove, and the spacing strip of second and second spacing groove sliding connection.

5. The novel axial flow smoke exhaust fan according to claim 1, wherein: mount pad (3) inner chamber rigid coupling has two sets of dead levers (9), and two sets of dead levers (9) all set up side by side with dwang (63) and lie in dwang (63) both sides respectively, and is two sets of the equal rigid coupling of dead lever (9) free end has rotation seat (10), and two sets of connecting rods (4) run through two sets of rotation seat (10) inner chambers respectively.

6. The novel axial flow smoke exhaust fan according to claim 1, wherein: one side surfaces, close to each other, of the sliding rod (64) and the cap (8) are both subjected to sanding treatment.