CN112302968A

CN112302968A - Safe centrifugal fan

Info

Publication number: CN112302968A
Application number: CN202011453626.XA
Authority: CN
Inventors: 黎顺展; 陆思如
Original assignee: Zhaoqing Yongzhi Machinery Equipment Co ltd
Current assignee: Zhaoqing Yongzhi Machinery Equipment Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-02-02

Abstract

The invention discloses a safe centrifugal fan, which comprises a fan body, wherein one side of the fan body is provided with an air inlet, the outer side of the fan body, which is positioned at the two sides of the air inlet, is provided with sliding grooves, the inner parts of the sliding grooves are both connected with arc frames in a sliding manner, a threaded rod is arranged between the inner parts of the arc frames, the two ends of the threaded rod are in threaded connection with the arc frames, the threads at the two sides of the threaded rod are opposite, the two sides of the fan body, which are positioned at one side of the arc frames, are fixedly connected with a rotating seat, the inner parts of the rotating seat are rotatably connected with a pressing plate, the inner parts of the arc frames are provided with grooves, one end of the pressing plate is positioned at one side of the arc frames through the grooves, the upper end of one side of the arc frames is fixedly connected with a mounting plate, the user can conveniently install the protective net.

Description

Safe centrifugal fan

Technical Field

The invention relates to a centrifugal fan, in particular to a safe centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

The existing centrifugal fan is provided with a protective net at one end for protecting the internal fan blades. However, when the protective net is installed in the existing centrifugal fan, a plurality of screws are generally adopted for fixing, and the fixing is troublesome. Accordingly, a safe centrifugal fan is provided by those skilled in the art to solve the problems set forth in the background art described above.

Disclosure of Invention

The invention aims to provide a safe centrifugal fan to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a safe centrifugal fan, which comprises a bod, the air intake has been seted up to fuselage one side, the fuselage outside is located the both sides of air intake and has been seted up the sliding tray, the equal sliding connection in inside of sliding tray has the arc frame, be equipped with the threaded rod between the arc frame is inside, the threaded rod both ends and arc frame threaded connection, the threaded rod both sides screw thread is opposite, the fuselage both sides are located arc frame one side fixedly connected with and rotate the seat, rotate the inside rotation of seat and be connected with the pressure strip, the fluting has been seted up to arc frame inside, pressure strip one end is located arc frame one side through the fluting, arc frame one side upper end fixedly connected with mounting panel, the lower extreme fixedly connected with elasticity post of mounting panel, elasticity post lower extreme and pressure strip upper end contact, the connecting rod has been inserted to pressure strip one end below, The pressing blocks are fixedly connected. Rotate the turning block, the turning block rotates and makes the threaded rod rotate, arc frame and fuselage sliding connection, and threaded rod both sides screw thread is opposite, the threaded rod rotates and makes the arc frame move to both sides, the fluting constantly is close to the rotation seat when the arc frame moves to both sides, make the pressure strip lift up round the rotation seat, the one end perk of rotation seat is kept away from to the pressure strip, make pressure strip and fuselage separation, insert the protection network between the arc frame, reverse rotation turning block again, the turning block rotates and makes two arc frames be close to the fluting through the threaded rod and keeps away from the rotation seat, the pressure strip compresses tightly the protection network under the elastic pressure of elasticity post, the arc frame continues to be close to, the pressure strip continues to compress tightly this moment, spring shrink spliced pole upper end is passed the pressure strip and is located the upper end, it is tight.

As a further scheme of the invention: an air outlet is formed in one side of the upper end of the machine body, and a base is fixedly connected to the lower end of the machine body. The air is discharged through the air outlet.

As a still further scheme of the invention: the motor is fixedly installed at the upper end of the base, is located on one side of the machine body and is in transmission connection with internal elements of the machine body. The internal elements of the machine body are driven to operate by starting the motor.

As a still further scheme of the invention: a protective net is inserted into the arc-shaped frame and is positioned below the pressing block.

As a still further scheme of the invention: the pressure strip is symmetrical about the threaded rod, and one end of the pressure strip is located on two sides of the air inlet.

As a still further scheme of the invention: the middle of the threaded rod is fixedly connected with a rotating block, and the rotating block is sleeved on the outer side of the threaded rod. The rotating block drives the threaded rod to rotate.

Compared with the prior art, the invention has the beneficial effects that:

through the design, fixed knot constructs for centrifugal fan rotates the turning block and makes two arc framves keep away from when installing the protection network, and the pressure strip lifts up simultaneously, inserts the protection network between the arc frame, rotates the turning block again and presss from both sides the protection network clamp and compress tightly simultaneously, and the person of facilitating the use installs the protection network.

Drawings

Fig. 1 is a schematic side view of a safety centrifugal fan.

Fig. 2 is a schematic view of a safety centrifugal fan in a front view.

Fig. 3 is a schematic structural view of a fixing structure in a safety centrifugal fan.

Fig. 4 is a schematic top view of a fixing structure of a safety centrifugal fan.

Fig. 5 is a schematic structural view of a protective net in a safety centrifugal fan.

In the figure: 1. a base; 2. a body; 3. a motor; 4. an air outlet; 5. an air inlet; 6. a sliding groove; 7. an arc-shaped frame; 8. a threaded rod; 9. rotating the block; 10. a rotating seat; 11. a compression plate; 12. mounting a plate; 13. grooving; 14. a connecting rod; 15. a compression block; 16. a spring; 17. an elastic column; 18. and (4) a protective net.

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 to 5, in the embodiment of the present invention, a safe centrifugal fan includes a body 2, an air outlet 4 is formed at one side of an upper end of the body 2, a base 1 is fixedly connected to a lower end of the body 2, a motor 3 is fixedly mounted at an upper end of the base 1, the motor 3 is located at one side of the body 2, the motor 3 is in transmission connection with an internal component of the body 2, an air inlet 5 is formed at one side of the body 2, sliding grooves 6 are formed at two sides of the air inlet 5 at an outer side of the body 2, an arc-shaped frame 7 is slidably connected to an inner portion of each sliding groove 6, a threaded rod 8 is disposed between the inner portions of the arc-shaped frames 7, a rotating block 9 is fixedly connected to a middle of the threaded rod 8, the rotating block 9 is sleeved on an outer side of the threaded rod 8, two ends of the threaded rod 8 are, pressure strip 11 is about 8 symmetries of threaded rod, 11 one end of pressure strip is located the both sides of air intake 5, fluting 13 has been seted up to arc frame 7 inside, 11 one end of pressure strip is located arc frame 7 one side through fluting 13, 7 one side upper end fixedly connected with mounting panel 12 of arc frame, the lower extreme fixedly connected with elasticity post 17 of mounting panel 12, the contact of elasticity post 17 lower extreme and pressure strip 11 upper end, connecting rod 14 has been inserted to pressure strip 11 one end below, 14 lower extreme fixedly connected with clamp block 15 of connecting rod, be equipped with spring 16 between clamp block 15 and the pressure strip 11, the spring 16 both ends respectively with pressure strip 11, 15 fixed connection of clamp block, the inside protection network 18 that has inserted of arc frame 7, protection network 18 is located the below of clamp block 15. When the protective net 18 is installed, the rotating block 9 is rotated, the rotating block 9 rotates to enable the threaded rod 8 to rotate, the arc-shaped frames 7 are connected with the machine body 2 in a sliding mode, threads on two sides of the threaded rod 8 are opposite, the threaded rod 8 rotates to enable the arc-shaped frames 7 to move towards two sides, the grooves 13 are constantly close to the rotating seats 10 while the arc-shaped frames 7 move towards two sides, the pressing plate 11 is lifted up around the rotating seats 10, one ends, far away from the rotating seats 10, of the pressing plates 11 are tilted, the pressing blocks 15 are separated from the machine body 2, the protective net 18 is inserted between the arc-shaped frames 7, the rotating block 9 is rotated reversely, the rotating block 9 rotates to enable the two arc-shaped frames 7 to be close to the grooves 13 and far away from the rotating seats 10 through the threaded rod 8, the pressing plates 11 press the protective net 18 under the elastic pressure of the elastic columns 17, the arc-, until the arc-shaped frame 7 clamps the protective net 18, the protective net is convenient to mount and dismount.

The working principle of the invention is as follows:

when the device is used, when a protective net 18 is installed, the rotating block 9 is rotated, the rotating block 9 rotates to enable the threaded rod 8 to rotate, the arc-shaped frame 7 is connected with the machine body 2 in a sliding mode, threads on two sides of the threaded rod 8 are opposite, the threaded rod 8 rotates to enable the arc-shaped frame 7 to move towards two sides, the groove 13 is continuously close to the rotating seat 10 while the arc-shaped frame 7 moves towards two sides, the pressing plate 11 is lifted up around the rotating seat 10, one end, far away from the rotating seat 10, of the pressing plate 11 is tilted, the pressing block 15 is separated from the machine body 2, the protective net 18 is inserted between the arc-shaped frames 7, the rotating block 9 is rotated reversely, the rotating block 9 rotates to enable the two arc-shaped frames 7 to be close to the groove 13 and far away from the rotating seat 10 through the threaded rod 8, the pressing plate 11 presses the protective net 18 under the elastic pressure of the elastic column 17, the arc-, until the arc-shaped frame 7 clamps the protective net 18, the protective net is convenient to mount and dismount.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A safe centrifugal fan comprises a fan body (2) and is characterized in that an air inlet (5) is formed in one side of the fan body (2), sliding grooves (6) are formed in two sides, located at the air inlet (5), of the outer side of the fan body (2), arc-shaped frames (7) are connected inside the sliding grooves (6) in a sliding mode, threaded rods (8) are arranged between the inner portions of the arc-shaped frames (7), two ends of each threaded rod (8) are in threaded connection with the arc-shaped frames (7), threads of two sides of each threaded rod (8) are opposite, a rotating seat (10) is fixedly connected to one side, located at the two sides of each fan body (2), of each arc-shaped frame (7), a pressing plate (11) is rotatably connected to the inner portion of each rotating seat (10), a groove (13) is formed in the corresponding arc-shaped frame (7), one end of each pressing plate (, the lower extreme fixedly connected with elasticity post (17) of mounting panel (12), elasticity post (17) lower extreme and pressure strip (11) upper end contact, have inserted connecting rod (14) below pressure strip (11) one end, connecting rod (14) lower extreme fixedly connected with compact heap (15), be equipped with spring (16) between compact heap (15) and pressure strip (11), spring (16) both ends respectively with pressure strip (11), compact heap (15) fixed connection.

2. The safe centrifugal fan as claimed in claim 1, wherein an air outlet (4) is formed in one side of the upper end of the fan body (2), and a base (1) is fixedly connected to the lower end of the fan body (2).

3. The safe centrifugal fan as claimed in claim 2, wherein the motor (3) is fixedly mounted at the upper end of the base (1), the motor (3) is positioned at one side of the fan body (2), and the motor (3) is in transmission connection with internal elements of the fan body (2).

4. A safe centrifugal fan according to claim 1, wherein a protective net (18) is inserted into the arc-shaped frame (7), and the protective net (18) is positioned below the compression block (15).

5. A safety centrifugal fan according to claim 1, wherein the pressure plate (11) is symmetrical about the threaded rod (8), and one end of the pressure plate (11) is located on both sides of the air inlet (5).

6. The safe centrifugal fan as claimed in claim 1, wherein a rotating block (9) is fixedly connected in the middle of the threaded rod (8), and the rotating block (9) is sleeved on the outer side of the threaded rod (8).