CN217814052U

CN217814052U - Explosion-proof type frequency conversion centrifugal fan easy to assemble

Info

Publication number: CN217814052U
Application number: CN202221928112.XU
Authority: CN
Inventors: 余兴涛; 冯杰
Original assignee: Shaanxi Xuanyang Environmental Service Co ltd
Current assignee: Shaanxi Xuanyang Environmental Service Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-15
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to the technical field of centrifugal fan installation, in particular to an explosion-proof variable frequency centrifugal fan convenient to install, which comprises a centrifugal fan, wherein an air outlet pipe is fixedly connected above the left side of the centrifugal fan, the upper end surface of the air outlet pipe is fixedly connected with a flange plate, the lower end surfaces of the front side and the rear side of the flange plate are fixedly connected with hollow blocks, the inner parts of the hollow blocks are rotatably connected with a rotating plate, the lower end surface of the rotating plate is fixedly connected with lower bolts, and the outer sides of the lower bolts are spirally connected with threaded fixing blocks; the utility model discloses in, through the cavity piece that sets up, commentaries on classics board, lower bolt, thread fixing block, splint and last bolt for the device can carry out the ring flange of centrifugal fan and the ring flange of other connecting pieces in advance and press from both sides tightly spacing, reduces artifical manual positioning's number of times, with the problem of the inconvenient butt joint of ring flange and other connecting pieces of solving centrifugal fan, it is very practical.

Description

Explosion-proof type frequency conversion centrifugal fan easy to assemble

Technical Field

The utility model relates to a centrifugal fan installs technical field, specifically is an explosion-proof formula frequency conversion centrifugal fan easy to assemble.

Background

The centrifugal fan is a driven fluid machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is widely used for ventilation, dust exhaust 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; inflation and propulsion of wind-tunnel wind regime and air cushion ship etc, and centrifugal fan on the market is explosion-proof mostly, and can carry out the frequency conversion, but the inconvenient installation of centrifugal fan, centrifugal fan's weight is heavier, need dock the connecting piece that is connected with centrifugal fan when the installation, centrifugal fan's ring flange and the ring flange of connecting piece each other contact and use the bolt to screw up it fixedly promptly, but when the butt joint, it is fixed to need the manual extrusion with two ring flanges of operating personnel, the ring flange of inconvenient centrifugal fan docks with the ring flange of other connecting pieces, the crooked condition of ring flange butt joint appears easily in the time of increase operating personnel's intensity of labour, therefore, propose an explosion-proof frequency conversion centrifugal fan easy to assemble to the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof formula frequency conversion centrifugal fan easy to assemble makes it can solve the problem of centrifugal fan's ring flange and the inconvenient butt joint of other connecting pieces.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an explosion-proof type frequency conversion centrifugal fan easy to assemble, includes centrifugal fan, centrifugal fan left side top fixedly connected with goes out the tuber pipe, go out tuber pipe up end fixedly connected with ring flange, terminal surface fixedly connected with well cavity piece under both sides around the ring flange, well cavity piece inside is rotated and is connected with the commentaries on classics board, change the board under the terminal surface fixedly connected with bolt, bolt outside screwed connection has the thread fixing piece down, thread fixing piece outside fixedly connected with splint.

Preferably, an explosion-proof formula frequency conversion centrifugal fan easy to assemble, including centrifugal fan, centrifugal fan left side top fixedly connected with goes out the tuber pipe, go out tuber pipe up end fixedly connected with ring flange, terminal surface fixedly connected with well cavity piece under both sides around the ring flange, well cavity piece inside is rotated and is connected with the commentaries on classics board, change the board under the terminal surface fixedly connected with bolt, bolt outside screwed connection has the thread fixing block down, thread fixing block outside fixedly connected with splint.

Preferably, the quantity of splint is 2, and splint distribute both sides around the ring flange, and the quantity of the inside thread fixing piece of splint is 2, and thread fixing piece fixes on the inside top of both sides about splint, and inside and last bolt screwed connection of the inside thread fixing piece in splint top, and inside and lower bolt screwed connection of the inside thread fixing piece in splint below top.

Preferably, a groove is formed in the middle of the inside of the hollow block, the depth of the groove in the middle of the inside of the hollow block is equal to the thickness of the rotating plate, a digging groove is formed in the middle of the lower portion of the inside of the hollow block, and the diameter of the digging groove in the middle of the lower portion of the inside of the hollow block is 0.7mm larger than the diameter of the cross section of the lower bolt.

Preferably, the inboard top fixedly connected with motor shaft of motor, and the motor shaft other end and well hollow plate fixed connection, and below fixedly connected with riser in the middle of the well hollow plate, and the inboard top of threaded rod rotates with the riser to be connected.

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

the utility model discloses in, cavity piece through setting up, the commentaries on classics board, lower bolt, the thread fixing piece, splint and last bolt, make the device can carry out the ring flange of centrifugal fan and the ring flange of other connecting pieces to press from both sides in advance and press from both sides tightly spacingly, reduce artifical manual positioning's number of times, problem with the inconvenient butt joint of ring flange and other connecting pieces of solving centrifugal fan, and pass through the motor, the threaded rod, movable block and connecting rod, make the device can centrifugal fan highly adjust, make things convenient for operating personnel to dock centrifugal fan's ring flange and the ring flange of connecting piece, with the problem that needs the manual bed hedgehopping of operating personnel when solving centrifugal fan adjustment height, improve the convenience of centrifugal fan installation, and is very practical.

Drawings

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

FIG. 2 is a side view of the splint according to the present invention;

FIG. 3 is a schematic view of the internal structure of the hollow block of the present invention;

fig. 4 is a schematic view of the bottom plate of the present invention.

In the figure: 1-centrifugal fan, 2-air outlet pipe, 3-flange plate, 4-clamping plate, 5-bottom plate, 6-stretching telescopic rod, 7-hollow plate, 8-motor, 9-threaded rod, 10-moving block, 11-connecting rod, 12-thread fixing block, 13-lower bolt, 14-hollow block, 15-upper bolt, 16-extrusion plate, 17-kneading plate and 18-rotating plate.

Detailed Description

The technical solutions 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, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

an explosion-proof frequency conversion centrifugal fan convenient to install comprises a centrifugal fan 1, an air outlet pipe 2 is fixedly connected to the upper end face of the air outlet pipe 2, hollow blocks 14 are fixedly connected to the lower end faces of the front side and the rear side of the flange 3, a rotating plate 18 is rotatably connected to the inner portion of each hollow block 14, lower end faces of the rotating plates 18 are fixedly connected with lower bolts 13, outer sides of the lower bolts 13 are spirally connected with threaded fixing blocks 12, outer sides of the threaded fixing blocks 12 are fixedly connected with clamping plates 4, inner sides of the hollow blocks 14 are in contact with the lower bolts 13, lower end faces of the lower bolts 13 are fixedly connected with pinch plates 17, inner sides of the threaded fixing blocks 12 are spirally connected with upper bolts 15, lower end faces of the upper bolts 15 are fixedly connected with extrusion plates 16, the lower end faces of the centrifugal fan 1 are fixedly connected with a bottom plate 5, lower end faces of the bottom plate 5 are fixedly connected with a telescopic rod 6, lower end faces of the hollow blocks 7 are fixedly connected with upper ends of the inner sides of the hollow plates 7, the inner sides of the motor 8 are fixedly connected with threaded rods 10, and the upper ends of the hollow blocks 12 and the hollow blocks 12 are connected with the upper ends of the upper bolts 12 and the upper blocks and the lower clamping plates 12 and the upper ends of the hollow blocks 12 are arranged in a sliding manner, meanwhile, a groove is formed in the middle of the inside of the hollow block 14, the depth of the shape of the groove in the middle of the inside of the hollow block 14 is equal to the thickness of the shape of the rotating plate 18, an excavating groove is formed in the middle of the lower portion of the inside of the hollow block 14, the diameter of the excavating groove in the middle of the lower portion of the inside of the hollow block 14 is 0.7mm larger than the diameter of the cross section of the lower bolt 13, the flange 3 of the centrifugal fan 1 and the flange 3 of other connecting pieces can be clamped and limited in advance, the number of times of manual positioning is reduced, the problem that the flange 3 of the centrifugal fan 1 and other connecting pieces are inconvenient to butt is solved, the device can adjust the height of the centrifugal fan 1 through the motor 8, the threaded rod 9, the moving block 10 and the connecting rod 11, the motor shaft is fixedly connected to the top end of the inner side of the motor 8, the other end of the motor shaft is fixedly connected with the hollow plate 7, the vertical plate is fixedly connected to the lower portion of the middle of the hollow plate 7, the top end of the inner side of the hollow plate 9 is rotatably connected with the vertical plate, the device can adjust the height of the centrifugal fan 1, the height of the centrifugal fan can be conveniently abutted to the flange 3 of the connecting piece, the centrifugal fan 1, the centrifugal fan, and the centrifugal fan can be conveniently installed, and the centrifugal fan 1, and the centrifugal fan is convenient and convenient to use.

The working process comprises the following steps: when the air pipe connector is used, the hollow plate 7 and the centrifugal fan 1 are carried to a set position, the flange 3 of the centrifugal fan 1 and the flange 3 of the connector are fixedly connected, if the overall height of the centrifugal fan 1 is not enough, the motor 8 can be started, the motor 8 drives the threaded rod 9 to rotate, the movable block 10 outside the threaded rod 9 drives the connecting rod 11 to move inwards, the connecting rod 11 upwards jacks up the bottom plate 5 and the centrifugal fan 1, the stretching telescopic rod 6 deforms, the air outlet pipe 2 of the centrifugal fan 1 is contacted with the connector at the moment, the flange 3 of the air outlet pipe 2 and the flange 3 of the connector are fixedly butted by using screws, at the moment, an operator can clamp the flange 3 of the connector at the inner side of the clamping plate 4, namely, the flange 3 on the upper end face of the air pipe 2 is positioned above the air outlet pipe 2, the clamping plate 17 is held and rotated, the clamping plate 17 drives the upper bolt 15 and the extrusion plate 16 to clamp the flange 3 of the connector, the flange 3 on the upper end face of the air pipe 2 can be calibrated by rotating the lower bolt 13, the lower bolt 13 drives the rotating plate 18 to rotate in the hollow block 14, the inner rotation of the lower bolt 13, the flange 3 and the flange 3 of the air outlet pipe 2 is aligned with the connector, and the flange 3, the connector, the flange 3 is prevented from being skewed and the skew of the connector, and the connector is effectively reduced in practical operation intensity of the connector.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion-proof formula frequency conversion centrifugal fan easy to assemble, includes centrifugal fan (1), its characterized in that: centrifugal fan (1) left side top fixedly connected with goes out tuber pipe (2), it has ring flange (3) to go out tuber pipe (2) up end fixedly connected with, cavity piece (14) in the both sides down end fixedly connected with around ring flange (3), cavity piece (14) inside rotation is connected with commentaries on classics board (18), change under the terminal surface fixedly connected with bolt (13) under board (18), bolt (13) outside screwed connection has screw thread fixed block (12) down, screw thread fixed block (12) outside fixedly connected with splint (4).

2. The explosion-proof type variable frequency centrifugal fan convenient to install of claim 1, characterized in that: the utility model discloses a hollow block, including cavity piece (14), inboard below and lower bolt (13) contact, terminal surface fixedly connected with holds between the fingers board (17) down bolt (13), the inside screwed connection of screw thread fixed block (12) has last bolt (15), terminal surface fixedly connected with stripper plate (16) down bolt (15), terminal surface fixedly connected with bottom plate (5) down in centrifugal fan (1), terminal surface four corners position department fixedly connected with tensile telescopic link (6) under bottom plate (5), terminal surface fixedly connected with cavity board (7) under tensile telescopic link (6), cavity board (7) left and right sides below fixedly connected with motor (8), motor (8) inboard top fixedly connected with threaded rod (9), threaded rod (9) outside screwed connection has movable block (10), movable block (10) up end rotates and is connected with connecting rod (11), connecting rod (11) other end rotates with bottom plate (5) to be connected, cavity board (7) top inboard and connecting rod (11) sliding connection.

3. The explosion-proof type variable frequency centrifugal fan convenient to install of claim 1, characterized in that: the quantity of splint (4) is 2, and splint (4) distribute both sides around ring flange (3), and the quantity of the inside screw thread fixed block (12) of splint (4) is 2, and screw thread fixed block (12) are fixed on the inside top of both sides about splint (4), and inside and last bolt (15) screwed connection of the inside screw thread fixed block (12) in splint (4) top, and inside and bolt (13) screwed connection down of the inside screw thread fixed block (12) in splint (4) below top.

4. The explosion-proof type variable frequency centrifugal fan convenient to install of claim 1, characterized in that: the middle of the inside of the hollow block (14) is provided with a groove, the depth of the shape of the groove in the middle of the inside of the hollow block (14) is equal to the thickness of the shape of the rotating plate (18), an excavating groove is arranged in the middle of the lower side of the inside of the hollow block (14), and the diameter of the excavating groove in the middle of the lower side of the inside of the hollow block (14) is 0.7mm larger than the diameter of the cross section of the lower bolt (13).

5. The explosion-proof type variable frequency centrifugal fan convenient to install of claim 2, characterized in that: motor (8) inboard top fixedly connected with motor shaft, and the motor shaft other end and well hollow plate (7) fixed connection, and well hollow plate (7) middle below fixedly connected with riser, and threaded rod (9) inboard top is connected with the riser rotation.