CN216742097U

CN216742097U - Multi-wing centrifugal ventilator

Info

Publication number: CN216742097U
Application number: CN202220073242.3U
Authority: CN
Inventors: 曾焱
Original assignee: Dongguan Baolong Ventilation Equipment Co ltd
Current assignee: Dongguan Baolong Ventilation Equipment Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-14
Anticipated expiration: 2032-01-12

Abstract

The utility model relates to the technical field of ventilators, in particular to a multi-wing centrifugal ventilator. The technical scheme comprises the following steps: fixed bolster and ventilation blower main part, the internally mounted of fixed bolster has the height control mechanism who is used for adjusting the ventilation blower main part height, the ventilation blower main part has the dead lever through the bolt mounting, the dead lever passes through positioning mechanism and is connected with height control mechanism, and height control mechanism includes the threaded rod of being connected with the fixed bolster rotation, the threaded rod passes through the thread bush and is connected with the connecting plate, the equal fixedly connected with fixed plate in both sides of connecting plate, one side fixedly connected with lantern ring of fixed plate, the dead lever is located the inside of the lantern ring, fixed bolster fixedly connected with guide bar, the guide bar is with the guiding hole swing joint of connecting plate. The utility model can adjust the vertical height of the centrifugal fan, so that the centrifugal fan is more convenient to mount with a pipeline and is convenient to disassemble and assemble the centrifugal fan.

Description

Multi-wing centrifugal ventilator

Technical Field

The utility model relates to the technical field of ventilators, in particular to a multi-wing centrifugal ventilator.

Background

The multi-wing centrifugal fan is a driven fluid machine, which can increase the pressure of gas and discharge the gas by means of the input mechanical energy. According to the principle of converting kinetic energy into potential energy, an impeller rotating at high speed is used for accelerating gas, then decelerating and changing the flow direction, so that kinetic energy is converted into potential energy (pressure). In a single stage centrifugal fan, the gas enters the impeller from an axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser. In diffusers, the gas changes flow direction causing a deceleration which converts kinetic energy into pressure energy. The pressure increase occurs primarily in the impeller and secondarily in the diffusion process. In a multistage centrifugal fan, a flow reverser is used to direct the air flow to the next impeller, creating a higher pressure.

The existing Chinese patent with the patent number of CN211975518U discloses a multi-wing centrifugal fan, which comprises a fan body, wherein a base is arranged on the lower side of the fan body, a connecting block is fixedly connected to the lower surface of the fan body, and the connecting block is connected with the base through a detachable device.

According to the chinese patent with patent number CN211975518U, the height of the ventilator cannot be adjusted after the ventilator is fixedly installed, so that the ventilation duct cannot be connected with the ventilator due to calculation errors, and the ventilation duct needs to be cut by recalculation, which is very time-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-wing centrifugal fan aiming at the problems in the background technology.

The technical scheme of the utility model is as follows: the utility model provides a multi-wing formula centrifugal fan, includes fixed bolster and ventilation blower main part, the internally mounted of fixed bolster has the height adjustment mechanism who is used for adjusting ventilation blower main part height, the ventilation blower main part has the dead lever through the bolt mounting, the dead lever passes through positioning mechanism and is connected with height adjustment mechanism.

Preferably, height adjusting mechanism includes the threaded rod of being connected with the fixed bolster rotation, the threaded rod passes through the thread bush and is connected with the connecting plate, the equal fixedly connected with fixed plate in both sides of connecting plate, one side fixedly connected with lantern ring of fixed plate, the fixed rod is located the inside of the lantern ring.

Preferably, the fixed support is fixedly connected with a guide rod, the guide rod is movably connected with a guide hole of the connecting plate, a sliding opening is formed in one side of the fixed support, and the fixed rod is connected with the sliding opening in a sliding mode.

Preferably, the positioning mechanism comprises a pull rod movably connected with the fixed support, one end of the pull rod is fixedly connected with a pressing plate, one side of the pressing plate is connected with the fixed support through a second spring, and two sides of the pressing plate are connected with sliding grooves in the inner side of the fixed support in a sliding mode through sliding blocks.

Preferably, the lantern ring is provided with a cavity, the cavity is connected with a positioning shaft in a sliding mode through a baffle, and the positioning shaft is located on one side of the pressing plate.

Preferably, the fixing rod is provided with a positioning groove, and one end of the positioning shaft is located inside the positioning groove.

Preferably, the baffle is fixedly connected with a first spring, and one end of the first spring is fixedly connected to the cavity.

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

1: the connecting plate can be driven to move up and down by rotating the threaded rod through the limitation of the guide rod on the connecting plate, and the connecting plate drives the ventilator main body connected with the fixed rod to move up and down through the fixed plate and the lantern ring, so that the vertical height of the centrifugal fan can be adjusted, and the centrifugal fan is more convenient to mount with a pipeline;

2: when the pulling pull rod drives the pressing plate to be far away from the lantern ring, the positioning shaft can be separated from the positioning groove through the acting force of the first spring, so that the fixing rod can be pulled out of the inner part of the lantern ring, the ventilator main body is disassembled, when the ventilator main body is required to be installed, the fixing rod is inserted into the inner part of the lantern ring, the pull rod is loosened, the acting force of the second spring pushes the pressing plate to press the positioning shaft, the fixing groove is inserted into the pressing plate again, the fixing of the fixing rod is completed, and the centrifugal fan is convenient to disassemble and assemble.

Drawings

Figure 1 is a perspective view of a multi-winged centrifugal ventilator;

FIG. 2 is a cross-sectional view of the mounting bracket of FIG. 1;

fig. 3 is an enlarged view of a in fig. 2.

Reference numerals: 1. fixing a bracket; 2. a threaded rod; 3. a guide bar; 4. a connecting plate; 5. a fixing plate; 6. a collar; 7. a cavity; 8. a baffle plate; 9. positioning the shaft; 10. a first spring; 11. pressing a plate; 12. a second spring; 13. a pull rod; 14. a ventilator main body; 15. fixing the rod; 16. and (6) positioning a groove.

Detailed Description

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

Example one

As shown in fig. 1 and 2, the multi-wing centrifugal ventilator provided by the present invention comprises a fixed bracket 1 and a ventilator main body 14, wherein a height adjusting mechanism for adjusting the height of the ventilator main body 14 is installed inside the fixed bracket 1, the ventilator main body 14 is provided with a fixed rod 15 by a bolt, the fixed rod 15 is connected with the height adjusting mechanism by a positioning mechanism, the height adjusting mechanism comprises a threaded rod 2 rotatably connected with the fixed bracket 1, the threaded rod 2 is connected with a connecting plate 4 by a threaded sleeve, both sides of the connecting plate 4 are fixedly connected with fixed plates 5, one side of each fixed plate 5 is fixedly connected with a lantern ring 6, the fixed rod 15 is located inside the lantern ring 6, the fixed bracket 1 is fixedly connected with a guide rod 3, the guide rod 3 is movably connected with a guide hole of the connecting plate 4, and one side of the fixed bracket 1 is provided with a sliding opening, the fixing rod 15 is connected with the sliding opening in a sliding mode.

In this embodiment, because the guiding hole of connecting plate 4 is swing joint with guide bar 3, consequently through the restriction of guide bar 3 to connecting plate 4 for can drive connecting plate 4 and reciprocate when rotating threaded rod 2, connecting plate 4 drives the ventilation blower main part 14 of being connected with dead lever 15 through fixed plate 5 and lantern ring 6 and reciprocates, thereby can adjust centrifugal fan's upper and lower height.

Example two

As shown in fig. 1-3, compared to the first embodiment, the present invention further includes a height adjusting mechanism installed inside the fixing bracket 1 for adjusting the height of the ventilator main body 14, the ventilator main body 14 is installed with a fixing rod 15 through a bolt, the fixing rod 15 is connected with the height adjusting mechanism through a positioning mechanism, the positioning mechanism includes a pull rod 13 movably connected with the fixing bracket 1, one end of the pull rod 13 is fixedly connected with a pressing plate 11, one side of the pressing plate 11 is connected with the fixing bracket 1 through a second spring 12, two sides of the pressing plate 11 are slidably connected with sliding grooves on the inner side of the fixing bracket 1 through sliding blocks, the sleeve ring 6 is provided with a cavity 7, the cavity 7 is slidably connected with a positioning shaft 9 through a baffle 8, the positioning shaft 9 is located on one side of the pressing plate 11, the fixing rod 15 is provided with a positioning groove 16, one end of the positioning shaft 9 is located inside the positioning groove 16, the baffle 8 is fixedly connected with a first spring 10, and one end of the first spring 10 is fixedly connected to the cavity 7.

In this embodiment, when pulling pull rod 13 drives clamp plate 11 and keeps away from lantern ring 6, location axle 9 can make it break away from with constant head tank 16 through the effort of spring 10, thereby can take dead lever 15 out the inside of lantern ring 6, dismantle ventilation blower main part 14, when needs are installed it, insert the inside of lantern ring 6 with dead lever 15 and loosening pull rod 13, effort through spring two 12 promotes clamp plate 11 and oppresses location axle 9, make its inside of reinserting constant head tank 16, the completion is to the location of dead lever 15.

The above embodiments are only some preferred embodiments of the present invention, and many alternative modifications and combinations of the above embodiments may be made by those skilled in the art based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. A multi-wing centrifugal ventilator, includes fixed bolster (1) and ventilator main part (14), its characterized in that: the novel ventilator is characterized in that a height adjusting mechanism for adjusting the height of the ventilator main body (14) is installed inside the fixing support (1), a fixing rod (15) is installed on the ventilator main body (14) through a bolt, and the fixing rod (15) is connected with the height adjusting mechanism through a positioning mechanism.

2. A centrifugal ventilator according to claim 1, characterized in that the height adjusting mechanism comprises a threaded rod (2) rotatably connected to the fixed frame (1), the threaded rod (2) is connected to a connecting plate (4) through a threaded sleeve, the two sides of the connecting plate (4) are fixedly connected to a fixing plate (5), one side of the fixing plate (5) is fixedly connected to a collar (6), and the fixing rod (15) is located inside the collar (6).

3. The centrifugal ventilator of claim 2, wherein the fixed bracket (1) is fixedly connected with a guide rod (3), the guide rod (3) is movably connected with a guide hole of the connecting plate (4), a sliding opening is formed in one side of the fixed bracket (1), and the fixed rod (15) is slidably connected with the sliding opening.

4. The centrifugal ventilator of claim 2, wherein the positioning mechanism comprises a pull rod (13) movably connected with the fixed support (1), one end of the pull rod (13) is fixedly connected with a pressure plate (11), one side of the pressure plate (11) is connected with the fixed support (1) through a second spring (12), and two sides of the pressure plate (11) are slidably connected with sliding grooves on the inner side of the fixed support (1) through sliding blocks.

5. A centrifugal ventilator according to claim 4 in which the collar (6) defines a cavity (7), the cavity (7) being slidably connected to a positioning shaft (9) through a baffle (8), the positioning shaft (9) being located on one side of a pressure plate (11).

6. A centrifugal ventilator according to claim 5 in which the fixing rod (15) defines a positioning slot (16), and one end of the positioning shaft (9) is located within the positioning slot (16).

7. A centrifugal ventilator according to claim 5 in which the baffle (8) has a first spring (10) fixedly attached to it, one end of the first spring (10) being fixedly attached to the chamber (7).