CN216342871U - Centrifugal fan - Google Patents

Abstract

The utility model relates to the technical field of centrifugal fans and discloses a centrifugal fan which comprises a base, wherein a machine body is fixedly installed at the top of the base, a buffer cushion located at the bottom of the machine body is arranged inside the base, connecting plates located at the top of the base are fixedly installed on the left side and the right side of the buffer cushion, supporting rods are fixedly installed at the tops of the two connecting plates, ejector rods located at the bottom of the machine body are fixedly installed at the tops of the two supporting rods, a fixing rod is fixedly installed at the front side of the buffer cushion, and a reinforcing plate fixedly connected with the fixing rod is fixedly installed between the base and the machine body. This centrifugal fan possesses advantages such as stability height, has solved present middle-size and small-size centrifugal fan and has mainly been the motor to be located the base, and casing and inside impeller be with motor joint support, and the casing does not have any supporting mechanism with the base, and when centrifugal fan operates like this, vibration still can appear wholly, causes the unstable problem of operation.

Description

Centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan.

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; wind tunnel wind source and air cushion boat inflation and propulsion.

At present, a middle-size and small-size centrifugal fan is mainly characterized in that a motor is located on a base, a shell and an inner impeller are connected and supported with the motor, the shell and the base do not have any supporting mechanism, and therefore when the centrifugal fan operates, the whole centrifugal fan still vibrates to cause unstable operation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a centrifugal fan which has the advantages of high stability and the like, and solves the problem that the existing small and medium-sized centrifugal fan mainly comprises a motor positioned on a base, a shell and an inner impeller which are connected and supported with the motor, and the shell and the base do not have any supporting mechanism, so that the whole centrifugal fan still vibrates when in operation, and the operation is unstable.

(II) technical scheme

The technical scheme for solving the technical problems is as follows: the utility model provides a centrifugal fan, includes the frame, the top fixed mounting organism of frame, the inside of frame is provided with the blotter that is located the bottom half of the body, the equal fixed mounting in left and right sides of blotter has the connecting plate that is located the frame top, two the equal fixed mounting in top of connecting plate has the bracing piece, two the equal fixed mounting in top of bracing piece has the ejector pin that is located the bottom half of the body, the front side fixed mounting of blotter has the dead lever, fixed mounting has the gusset plate with dead lever fixed connection between frame and the organism.

The utility model has the beneficial effects that:

this centrifugal fan, through setting up the organism, when organism and frame accomplish the equipment, can impress the blotter between frame and the organism, and inwards promote, when treating that the blotter falls into the frame, the connecting plate is horizontal on the frame, support the blotter, make it and organism laminating, and when the blotter impresses, the ejector pin is earlier with the organism contact, and along with the blotter removal, the ejector pin is under the cooperation of bracing piece, enter into between organism and the frame, then continue to promote the blotter, make gusset plate and organism and frame contact, be connected with organism and frame through the gusset plate at last, it is fixed to the blotter, through such placing, set up buffering support piece at organism and frame non-connection position, the high mesh of stability has been reached.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the upper surface of blotter is the cambered surface, blotter and organism looks adaptation.

Further, the bracing piece includes the sleeve, the top fixed mounting of connecting plate has the sleeve, telescopic inside movable mounting has the movable rod that one end extends to sleeve top, the outside fixed mounting of movable rod has the limiting plate that is located sleeve inside, the bottom fixed mounting of movable rod has the clamp plate, telescopic interior bottom fixed mounting have with clamp plate fixed connection's buffer spring.

Further, the ejector pin includes the connecting cylinder, the top fixed mounting of movable rod has the connecting cylinder, the top fixed mounting of connecting cylinder has the connecting rod, the top fixed mounting of connecting rod has the rubber pad with the organism laminating.

The beneficial effect who adopts above-mentioned further scheme is that, support between connecting rod and organism through the rubber pad, cause the fish tail to the organism surface when avoiding the connecting rod to push in, set up between frame and organism under the movable rod cooperation at the connecting rod, buffer spring is to the vibration absorption buffering on transmitting connecting rod and the movable rod from the organism like this.

Further, the upper surface of connecting rod is the cambered surface, the rubber pad is the arc form.

Further, the gusset plate includes set-square and second bolt, the front side of frame is provided with the set-square that one end extends to the organism front side, the front side threaded connection of set-square has one end to extend to the inside first bolt of frame, the jack has all been seted up to the top and the bottom of set-square, the equal threaded connection in front side of frame and organism has the second bolt that one end extends to the jack outside, two the equal threaded connection in outside of second bolt has the fastening nut who is located the set-square front side.

The beneficial effect who adopts above-mentioned further scheme is, through the set-square support between organism and frame, to organism and frame auxiliary stay, improve organism stability.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of the structure of the present invention at A;

FIG. 3 is a top view of the cushion of the present invention;

fig. 4 is a front sectional view of the support bar of the present invention.

In the figure: 1. a machine base; 2. a body; 3. a cushion pad; 4. a connecting plate; 5. a support bar; 51. a sleeve; 52. a movable rod; 53. a limiting plate; 54. pressing a plate; 55. a buffer spring; 6. a top rod; 61. a connecting rod; 62. a connecting cylinder; 63. a rubber pad; 7. fixing the rod; 8. a reinforcing plate; 81. a set square; 82. a first bolt; 83. a jack; 84. a second bolt; 85. and (5) tightening the nut.

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.

In the embodiment, as shown in fig. 1-4, the centrifugal fan comprises a base 1, a machine body 2 is fixedly mounted at the top of the base 1, a cushion pad 3 positioned at the bottom of the machine body 2 is arranged inside the base 1, connecting plates 4 positioned at the top of the base 1 are fixedly mounted at the left side and the right side of the cushion pad 3, supporting rods 5 are fixedly mounted at the tops of the two connecting plates 4, ejector rods 6 positioned at the bottom of the machine body 2 are fixedly mounted at the tops of the two supporting rods 5, a fixing rod 7 is fixedly mounted at the front side of the cushion pad 3, and a reinforcing plate 8 fixedly connected with the fixing rod 7 is fixedly mounted between the base 1 and the machine body 2.

The upper surface of the cushion pad 3 is a cambered surface, and the cushion pad 3 is matched with the machine body 2.

The support rod 5 comprises a sleeve 51, the sleeve 51 is fixedly mounted at the top of the connecting plate 4, a movable rod 52 with one end extending to the upper side of the sleeve 51 is movably mounted inside the sleeve 51, a limiting plate 53 located inside the sleeve 51 is fixedly mounted on the outer side of the movable rod 52, a pressing plate 54 is fixedly mounted at the bottom of the movable rod 52, and a buffer spring 55 fixedly connected with the pressing plate 54 is fixedly mounted at the inner bottom of the sleeve 51.

The ejector rod 6 comprises a connecting cylinder 62, the top of the movable rod 52 is fixedly provided with the connecting cylinder 62, the top of the connecting cylinder 62 is fixedly provided with a connecting rod 61, and the top of the connecting rod 61 is fixedly provided with a rubber pad 63 attached to the machine body 2.

The connecting rod 61 is supported between the connecting rod 61 and the machine body 2 through the rubber pad 63, so that the scratch on the outer surface of the machine body 2 when the connecting rod 61 is pressed in is avoided, the connecting rod 61 is arranged between the machine base 1 and the machine body 2 under the matching of the movable rod 52, and the buffer spring 55 absorbs and buffers the vibration transmitted from the machine body 2 to the connecting rod 61 and the movable rod 52.

The upper surface of the connecting rod 61 is a cambered surface, and the rubber pad 63 is arc-shaped.

The gusset plate 8 includes set-square 81 and second bolt 84, the front side of frame 1 is provided with the set-square 81 that one end extends to organism 2 front side, the front side threaded connection of set-square 81 has one end to extend to the inside first bolt 82 of frame 1, jack 83 has all been seted up to the top and the bottom of set-square 81, the equal threaded connection in front side of frame 1 and organism 2 has one end to extend to the second bolt 84 in the jack 83 outside, the equal threaded connection in outside of two second bolts 84 has the fastening nut 85 that is located the set-square 81 front side.

The supporting is carried out between the machine body 2 and the machine base 1 through the triangular plate 81, the machine body 2 and the machine base 1 are supported in an auxiliary mode, and the stability of the machine body 2 is improved.

The working principle is as follows:

the first step is as follows: the buffer cushion 3 can be pressed into the space between the machine base 1 and the machine body 2 and pushed inwards, when the buffer cushion 3 falls into the machine base 1, the connecting plate 4 is transversely arranged on the machine base 1 to support the buffer cushion 3 and enable the buffer cushion 3 to be attached to the machine body 2, and when the buffer cushion 3 is pressed in, the rubber pad 63 is firstly contacted with the machine body 2 and moves along with the buffer cushion 3, the connecting rod 61 can be pressed downwards to push the movable rod 52 to move towards the sleeve 51 to extrude the buffer spring 55, and the connecting rod 61, the movable rod 52 and the sleeve 51 enter the space between the machine body 2 and the machine base 1 along with the downward movement of the connecting rod 61;

the second step is that: then continue to push the blotter 3, make set square 81 and organism 2 and frame 1 contact, so the blotter 3 accomplishes the location, changes over into first bolt 82 again and fixes set square 81 to frame 1, then changes over into second bolt 84 through jack 83, carries on spacingly through jack 83 cooperation second bolt 84 like this, screws in fastening nut 85 at the second bolt 84 outside at last, to the set square 81 restriction, accomplishes fixing to blotter 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a centrifugal fan, includes frame (1), its characterized in that: the top fixed mounting organism (2) of frame (1), the inside of frame (1) is provided with blotter (3) that are located organism (2) bottom, the equal fixed mounting in the left and right sides of blotter (3) has connecting plate (4) that are located frame (1) top, two the equal fixed mounting in top of connecting plate (4) has bracing piece (5), two the equal fixed mounting in top of bracing piece (5) has ejector pin (6) that are located organism (2) bottom, the front side fixed mounting of blotter (3) has dead lever (7), fixed mounting has gusset plate (8) with dead lever (7) fixed connection between frame (1) and organism (2).

2. The centrifugal fan according to claim 1, wherein: the upper surface of blotter (3) is the cambered surface, blotter (3) and organism (2) looks adaptation.

3. The centrifugal fan according to claim 1, wherein: bracing piece (5) are including sleeve (51), the top fixed mounting of connecting plate (4) has sleeve (51), the inside movable mounting of sleeve (51) has movable rod (52) that one end extends to sleeve (51) top, the outside fixed mounting of movable rod (52) has limiting plate (53) that are located sleeve (51) inside, the bottom fixed mounting of movable rod (52) has clamp plate (54), the interior bottom fixed mounting of sleeve (51) has buffer spring (55) with clamp plate (54) fixed connection.

4. A centrifugal fan according to claim 3, wherein: ejector pin (6) include connecting cylinder (62), the top fixed mounting of movable rod (52) has connecting cylinder (62), the top fixed mounting of connecting cylinder (62) has connecting rod (61), the top fixed mounting of connecting rod (61) has rubber pad (63) with organism (2) laminating.

5. The centrifugal fan according to claim 4, wherein: the upper surface of connecting rod (61) is the cambered surface, rubber pad (63) are the arc form.

6. The centrifugal fan according to claim 1, wherein: reinforcing plate (8) are including set-square (81) and second bolt (84), the front side of frame (1) is provided with set-square (81) that one end extends to organism (2) front side, the front side threaded connection of set-square (81) has first bolt (82) that one end extends to frame (1) inside, jack (83) have all been seted up to the top and the bottom of set-square (81), the equal threaded connection in front side of frame (1) and organism (2) has second bolt (84) that one end extends to jack (83) outside, two the equal threaded connection in outside of second bolt (84) has fastening nut (85) that are located set-square (81) front side.

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