CN211666946U

CN211666946U - Centrifugal fan fixing device

Info

Publication number: CN211666946U
Application number: CN201921594046.5U
Authority: CN
Inventors: 阳光明; 胡镜镜
Original assignee: Hubei Shuangjian Blower Production Co ltd
Current assignee: Hubei Shuangjian Blower Production Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-10-13
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a centrifugal fan fixing device in the technical field of centrifugal fans, which comprises a base and a mounting seat, wherein a supporting plate is rotatably connected on the mounting seat, a first plate groove is arranged on the supporting plate, an adjusting screw and a positioning plate are arranged in the first plate groove, the top surface of the positioning plate is provided with a first screw hole, a rod groove and a plurality of positioning holes are arranged at the corresponding position of the bottom surface of the first plate groove, the utility model is connected with the first screw hole through a screw, thereby fixing the centrifugal fan on the mounting seat; when the centrifugal fan size reduces, the back is stagger with first screw position to the mounting hole of bottom, comes out the backup pad from first board groove to make the position of backup pad keep at the vertical state through location axle and locating hole, then rotate adjusting screw, make the locating plate move to the inboard, with centrifugal fan's bottom side contact, through locating plate all around, fixed centrifugal fan's bottom, it is fixed simple and convenient, and can adapt to not unidimensional fan.

Description

Centrifugal fan fixing device

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a centrifugal fan fixing device.

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.

In a single-stage centrifugal fan, gas enters an impeller from an axial direction, changes into a radial direction when flowing through the impeller, and then enters a diffuser; in the diffuser, the gas changes the flow direction and the cross-sectional area of the pipe increases to decelerate the gas flow, 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.

Centrifugal fan passes through screw hole and screw isotructure installation on the mount pad that corresponds with the fan base when fixed mounting, and when centrifugal fan's size etc. changed, the mounting hole position that the fan bottom corresponds also can change thereupon, but the rigidity of screw hole on the mount pad, consequently, the mount pad can not carry out fixed mounting to the centrifugal fan of equidimension not, and is fixed inconvenient.

Based on this, the utility model designs a centrifugal fan fixing device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifugal fan fixing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a centrifugal fan fixing device, the on-line screen storage device comprises a base, be fixed with the mount pad in the middle of the top surface of base, four sides of the top surface of mount pad are provided with first board groove respectively, the below in first board groove is provided with and holds the chamber, it has the backup pad to rotate in the first board groove, the top surface of backup pad is equipped with second board groove, there is the locating plate along vertical direction sliding connection in the second board groove, the top surface of locating plate evenly is provided with a plurality of first screws, it is connected with adjusting screw to rotate in the middle of the bottom surface, the bottom surface correspondence position in first board groove is provided with the pole groove, adjusting screw's bottom is passed the pole groove and is stretched into and hold in the chamber, and be fixed with the turning handle.

Preferably, the bottom surface bilateral symmetry of locating plate is fixed with the guide bar, and vertical direction sliding connection is followed with the bottom surface in second board groove to the guide bar, and the bottom passes the bottom surface in second board groove and pole groove, stretches into and holds the chamber to be fixed with the locating plate.

Preferably, the length of the adjusting screw is equal to the length of the guide rod.

Preferably, the bilateral symmetry of base is fixed with vertical dead lever, and the top of dead lever is provided with the lift groove, and swivelling joint has the lifting screw in the lift groove, and the lift groove is stretched out on the top of lifting screw to be fixed with the turning handle, the last elevator that has cup jointed of lifting screw, and the lateral wall sliding connection of elevator and lift groove, the lateral wall of elevator is fixed with the connecting rod, and the other end of connecting rod is fixed with the cardboard.

Preferably, the bottom end of the fixed rod is fixed with a fixed plate, four corners of the fixed plate are provided with positioning screws, the base is provided with positioning screw holes at corresponding positions, and the fixed plate is fixedly connected with the base through the positioning screws and the positioning screw holes.

Preferably, the cardboard sets up to the circular arc board, and evenly is fixed with a plurality of rubber strips on the medial surface.

Preferably, the four corners of the top surface of the mounting seat are provided with inclined moving grooves, the four moving grooves are arranged along the diagonal direction of the top surface of the mounting seat, a moving screw is rotatably connected in the moving grooves, a moving block is adjusted on the moving screw, one end of the moving screw extends out of the moving grooves and is fixed with a rotating handle, the moving block is slidably connected in the moving grooves, and the top surface is provided with a second screw hole.

Compared with the prior art, the beneficial effects of the utility model are that: the bottom of the centrifugal fan is placed on the mounting seat and is in threaded connection with the first screw hole through the screw, so that the centrifugal fan is fixed on the mounting seat; when centrifugal fan size reduces, the mounting hole of bottom staggers the back with first screw position, comes out the backup pad from first board groove, and perpendicular with the bottom surface of mount pad, insert vertical location axle in the locating hole, keep at the vertical state through location axle and backup pad position, then rotate adjusting screw, make the locating plate move to the inboard, with centrifugal fan's bottom side contact, through locating plate all around, fixed centrifugal fan's bottom, it is fixed simple and convenient to fix, and can adapt to not unidimensional fan.

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 will be briefly introduced below, and it is obvious that the drawings in the following description 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 these drawings without creative efforts.

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

fig. 2 is a schematic structural view of the mounting base of the present invention;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a third embodiment of the present invention.

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

1-base, 101-fixed rod, 102-lifting groove, 103-lifting screw rod, 104-lifting block, 105-clamping plate, 2-mounting seat, 201-first plate groove, 202-containing cavity, 203-rod groove, 204-positioning hole, 205-moving groove, 3-supporting plate, 4-positioning plate, 401-first screw hole, 402-adjusting screw rod, 5-moving block and 501-moving screw rod.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example one

Referring to the drawings, the utility model provides a technical scheme: the utility model provides a centrifugal fan fixing device, the on-line screen storage device comprises a base 1, be fixed with mount pad 2 in the middle of base 1's the top surface, four sides of the top surface of mount pad 2 are provided with first board groove 201 respectively, the below of first board groove 201 is provided with holds chamber 202, there is backup pad 3 in the first board groove 201 in the rotation connection, the top surface of backup pad 3 is equipped with the second board groove, there is locating plate 4 along vertical direction sliding connection in the second board groove, the top surface of locating plate 4 evenly is provided with a plurality of first screw 401, the rotation is connected with adjusting screw 402 in the middle of the bottom surface, the bottom surface correspondence position of first board groove 201 is provided with pole groove 203, adjusting screw 402's bottom is passed pole groove 203 and is stretched into and is held in chamber 202, and be fixed with the turning handle, the bottom surface inboard of.

Guide rods are symmetrically fixed on two sides of the bottom surface of the positioning plate 4, the guide rods are connected with the bottom surface of the second plate groove in a sliding mode along the vertical direction, the bottom end of each guide rod penetrates through the bottom surface of the second plate groove and the rod groove 203, extends into the accommodating cavity 202, and is fixed with a positioning plate; the positioning plate 4 is moved only in the axial direction of the guide bar by the guide bar and is not rotated, so that the positioning plate 4 is moved by rotating the adjustment screw 402.

The length of the adjustment screw 402 is equal to the length of the guide bar.

The working principle of the embodiment is as follows: the bottom of the centrifugal fan is placed on the mounting base 2 and is in threaded connection with the first screw hole 401 through a screw, so that the centrifugal fan is fixed on the mounting base 2; when centrifugal fan size reduces, the mounting hole of bottom staggers the back with first screw 401 position, go out backup pad 3 from first board groove 201, and perpendicular with the bottom surface of mount pad 2, insert vertical location axle in locating hole 204, keep at the vertical state through location axle and backup pad 3 position, then rotate adjusting screw 402, make locating plate 4 remove to the inboard, with centrifugal fan's bottom side contact, through locating plate 4 all around, it is fixed with centrifugal fan's bottom, it is fixed simple and convenient, and can adapt to not unidimensional fan.

Example two

On the basis of embodiment one, the bilateral symmetry of base 1 is fixed with vertical dead lever 101, and the top of dead lever 101 is provided with lift groove 102, and swivelling joint has lifting screw 103 in lift groove 102, and lifting screw 103's top stretches out lift groove 102 to be fixed with the turning handle, has cup jointed elevator 104 on the lifting screw 103, and elevator 104 and the lateral wall sliding connection in lift groove 102, the lateral wall of elevator 104 is fixed with the connecting rod, and the other end of connecting rod is fixed with cardboard 105.

A fixing plate is fixed at the bottom end of the fixing rod 101, positioning screws are arranged at four corners of the fixing plate, positioning screw holes are formed in corresponding positions on the base 1, and the fixing plate is fixedly connected with the base 1 through the positioning screws and the positioning screw holes; when the clamping plate 105 is not used, the positioning screws can be disassembled to separate the lifting groove 102, the clamping plate 105 and other structures from the base 1, so that the occupied space is avoided.

The clamping plate 105 is an arc plate, and a plurality of rubber strips are uniformly fixed on the inner side surface; when cardboard 105 sticiss on centrifugal fan's shell, through rubber strip and casing contact, play certain cushioning effect, increase friction simultaneously is in order to improve the location effect.

When centrifugal fan's bottom was fixed through backup pad 3 and locating plate 4, rotated lifting screw 103 through the turning handle to make elevator 104 slide along lift groove 102, and drive cardboard 105 and remove, sticis on centrifugal fan's shell, thereby it is fixed along vertical direction with centrifugal fan, improves fixed effect.

EXAMPLE III

On the basis of the first embodiment, the four corners of the top surface of the mounting base 2 are provided with inclined moving grooves 205, the four moving grooves 205 are arranged along the diagonal direction of the top surface of the mounting base 2, a moving screw 501 is rotatably connected to the moving grooves 205, a moving block 5 is adjusted on the moving screw 501, one end of the moving screw 501 extends out of the moving grooves 205 and is fixed with a rotating handle, the moving block 5 is slidably connected to the moving grooves 205, and the top surface of the moving screw is provided with a second screw hole.

The four corners of the mounting base 2 are provided with second screw holes with adjustable positions so as to mount corresponding centrifugal fans, when the position of a second thread needs to be adjusted, the movable screw 501 is rotated through a rotating handle, and the movable block 5 is moved through the action of the thread, so that the position of the second screw hole is adjusted; a plurality of first screw holes 401 and second screw holes are arranged at different positions on the mounting base 2, so that various centrifugal fans can be fixedly mounted.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a centrifugal fan fixing device, includes the base, its characterized in that: the middle of the top surface of the base is fixedly provided with a mounting seat, four sides of the top surface of the mounting seat are respectively provided with a first plate groove, a containing cavity is arranged below the first plate groove, a supporting plate is rotatably connected in the first plate groove, the top surface of the supporting plate is provided with a second plate groove, a positioning plate is slidably connected in the second plate groove along the vertical direction, the top surface of the positioning plate is uniformly provided with a plurality of first screw holes, the middle of the bottom surface is rotatably connected with an adjusting screw rod, the bottom surface of the first plate groove is provided with a rod groove corresponding to the position, the bottom end of the adjusting screw rod penetrates through the rod groove and extends into the containing cavity and is fixedly provided with a rotating handle, and the inner side of the bottom surface of the;

guide rods are symmetrically fixed on two sides of the bottom surface of the positioning plate, the guide rods are connected with the bottom surface of the second plate groove in a sliding mode along the vertical direction, the bottom end of each guide rod penetrates through the bottom surface of the second plate groove and the rod groove, extends into the accommodating cavity and is fixed with a positioning plate;

the length of the adjusting screw is equal to that of the guide rod.

2. The centrifugal fan fixing device of claim 1, wherein: the bilateral symmetry of base is fixed with vertical dead lever, and the top of dead lever is provided with the lift groove, swivelling joint has the lifting screw in the lift groove, and the lift groove is stretched out on the top of lifting screw to be fixed with the turning handle, the last elevator that has cup jointed of lifting screw, and the lateral wall sliding connection of elevator and lift groove, the lateral wall of elevator is fixed with the connecting rod, and the other end of connecting rod is fixed with the cardboard.

3. The centrifugal fan fixing device according to claim 2, wherein: the bottom of dead lever is fixed with the fixed plate, and the four corners department of fixed plate is provided with set screw, the last corresponding position of base is provided with the location screw, and the fixed plate passes through set screw and location screw and base fixed connection.

4. The centrifugal fan fixing device according to claim 2, wherein: the cardboard sets up to the circular arc board, and evenly is fixed with a plurality of rubber strips on the medial surface.

5. The centrifugal fan fixing device of claim 1, wherein: the four corners of the top surface of the mounting seat are provided with inclined moving grooves, the four moving grooves are arranged along the diagonal direction of the top surface of the mounting seat, a moving screw is connected in the moving grooves in a rotating mode, a moving block is adjusted on the moving screw, one end of the moving screw extends out of the moving grooves and is fixed with a rotating handle, the moving block is connected in the moving grooves in a sliding mode, and the top surface of the moving block is provided with a second screw hole.