CN222950083U - An outdoor large air volume fan - Google Patents

Abstract

The utility model discloses an outdoor type large air volume fan, which belongs to the technical field of fans. An air inlet cover is provided on one side of the fan housing, and a speed increasing box is fixedly connected to the other side of the fan housing. A spiral plate is fixedly connected to the interior of the speed increasing box, and a spiral groove is surrounded by the spiral plate and the inner wall of the speed increasing box. A connecting rod is fixedly connected to the inner wall of the fan housing, and a fixing sleeve is fixedly connected to one end of the connecting rod. A motor is fastened to the surface of the fixing sleeve by bolts. A rotating shaft is provided at the output end of the motor, and a fan impeller is fixedly installed on the surface of the rotating shaft. The outdoor type large air volume fan can increase the effect of the wind body forming a vortex through the spiral plate and the spiral groove arranged in the speed increasing box, thereby greatly increasing the air outlet speed, and has the functions of buffering, shock absorbing and anti-skid through the arranged base, shock absorbing column, shock absorbing spring and ground nail, which can prevent the fan from moving due to vibration force during operation, thereby improving the working position stability of the fan.

Description

Outdoor large-air-volume fan

Technical Field

The utility model relates to the technical field of fans, in particular to an outdoor large-air-volume fan.

Background

The fan is a driven fluid machine which can improve the pressure of gas and discharge the gas by means of the input mechanical energy, and the outdoor fan is usually used in the use process, although the wind forms rotational flow, the rotational flow effect is poor, the increased wind outlet speed is limited, and in the working process of the fan, the vibration force can lead the fan to move, so that the stability of the working position of the fan is reduced.

For example, the outdoor large-air-volume fan disclosed in the publication No. CN205895636U comprises a shell, a power assembly, a fan impeller, a rotating shaft and an air collecting assembly for improving the air volume of the fan, wherein the air collecting assembly comprises an air collecting piece connected with the air inlet and an air supply piece connected with the air outlet, the air collecting piece comprises an air collecting cover for introducing external air into the shell, and a first connecting piece for connecting the air collecting cover with the shell, and the air collecting cover is in a horn-shaped arrangement with a large front part and a small rear part.

According to the technical scheme, the wind body forms rotational flow through the spiral inner wall, the contact area of the wind body and the spiral inner wall is limited, the rotational flow effect of the wind body is reduced, the wind outlet speed is limited, the set ground feet are in contact with the ground, and the single shock-proof pad is used for possibly causing the movement of the wind body in the working process due to vibration force, so that the stability of the working position of the wind body is reduced.

Disclosure of utility model

Aiming at the problems existing in the prior art, the utility model aims to provide an outdoor large-air-volume fan, which can increase the effect of swirling flow of the air body through a spiral plate and a spiral groove arranged on a speed increasing box, so as to greatly increase the air outlet speed.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides an outdoor type big amount of wind fan, includes the fan casing, one side of fan casing is equipped with the air inlet cover, the opposite side fixedly connected with acceleration rate box of fan casing, the inside fixedly connected with screw plate of acceleration rate box, the screw plate has encircled the helicla flute with the inner wall of acceleration rate box, the inner wall fixedly connected with connecting rod of fan casing, the fixed cover of one end fixedly connected with of connecting rod, the fixed cover's surface passes through the tight inherent motor of bolt, the output of motor is equipped with the pivot, the fixed surface mounting of pivot has fan impeller, the bottom fixedly connected with connecting plate of fan casing and acceleration rate box, the bottom fixedly connected with shock strut of connecting plate, shock attenuation spring has been cup jointed in the outside of shock strut, the one end fixedly connected with base of shock strut, the surface activity of base has cup jointed the ground nail, and can increase the effect that wind body formed the whirl to the big amount of wind fan to through base, shock strut, shock attenuation spring and ground nail that sets up, have buffering and shock attenuation and prevent that the shock attenuation position can avoid the fan to move in the working position and stability.

Further, the air inlet end inner wall fixedly connected with bracing piece of helicla flute, the one end fixedly connected with bearing of bracing piece, the inner circle of bearing is equipped with the mounting hole, the inner wall of mounting hole and the one end fixed connection of pivot, bracing piece and bearing can increase the rotational stability of pivot and fan impeller.

Further, the fixed cover is formed by two rotatable semicircle boards in a surrounding way, the surface of fixed cover is equipped with the bolt hole, the fixed surface of motor is connected with the screw rod, and the installation of the motor of being convenient for is fixed.

Further, an air outlet is formed in the surface of the speed increasing box, one end of the air outlet is communicated with the air outlet end of the spiral groove, and an air outlet cover is arranged at the other end of the air outlet.

Further, the shape of the air outlet cover is a horn shape, a horn groove is formed in the air outlet cover, and a spiral inner wall is arranged on the inner wall of the horn groove and can form rotational flow to the air body.

Furthermore, the shape of the mounting hole is polygonal, and one end of the rotating shaft is provided with a polygonal inserting block, so that slipping and rotation of the rotating shaft and the bearing inner ring are avoided.

Furthermore, one end of the ground nail is provided with a limiting cap with holes, so that the ground nail can be pried out of the ground conveniently.

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the spiral plate and the spiral groove are arranged through the speed increasing box, so that the effect of forming rotational flow by wind can be increased, and the wind outlet speed can be greatly increased.

(2) This scheme has buffering shock attenuation and skid-proof function through base, shock strut, damping spring and the ground nail that set up, can avoid the fan to lead to removing because of vibration force in the course of the work, has improved the operating position stability of fan.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a top view of the speed increasing box structure of the present utility model;

FIG. 3 is a perspective view of the spiral plate structure of FIG. 2;

Fig. 4 is a side view of the bearing and support bar mounting structure of fig. 2.

The reference numerals in the figures illustrate:

1 a fan shell, 11 an air inlet cover, 12 a motor, 13 a rotating shaft, 14 a fan impeller, 15 a fixed sleeve, 16 a connecting rod, 2 a speed increasing box, 21 a spiral plate, 22 a spiral groove, 23 an air outlet, 24 an air outlet cover, 3 a bearing, 31 a mounting hole, 32 a supporting rod, 4 a base, 41 a shock absorption column, 42 a shock absorption spring, 43 a connecting plate, 5 ground nails and 51 a limit cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, an outdoor large-air-volume fan comprises a fan housing 1, an air inlet cover 11 is arranged on one side of the fan housing 1, the air inlet cover 11 is in a horn shape, a spiral inner wall is arranged on the inner wall, the air inlet can form rotational flow to increase air inlet speed, the specific structure and the working principle of the outdoor large-air-volume fan belong to the prior art, the specific structure and the working principle are well known to those skilled in the art, a speed increasing box 2 is fixedly connected on the other side of the fan housing 1, a spiral plate 21 is fixedly connected inside the speed increasing box 2, a spiral groove 22 is surrounded by the spiral plate 21 and the inner wall of the speed increasing box 2, a connecting rod 16 is fixedly connected on the inner wall of the fan housing 1, a fixing sleeve 15 is fixedly connected on one end of the connecting rod 16, the fixing sleeve 15 is formed by surrounding two rotatable semicircular plates, bolt holes are arranged on the surface of the fixing sleeve 15, and a screw is fixedly connected on the surface of a motor 12, the motor 12 is convenient to install and fix, the motor 12 is fastened on the surface of the fixed sleeve 15 through bolts, the motor 12 and the fan impeller 14 belong to the prior art, a rotating shaft 13 is arranged at the output end of the motor 12, the fan impeller 14 is fixedly arranged on the surface of the rotating shaft 13, a connecting plate 43 is fixedly connected with the bottom of the fan shell 1 and the speed increasing box 2, a shock-absorbing column 41 is fixedly connected with the bottom of the connecting plate 43, the shock-absorbing column 41 is a hydraulic buffer telescopic rod and is provided with a damper, the shock-absorbing column 41 and the shock-absorbing spring 42 are prevented from moving up and down at will, the shock-absorbing spring 42 and the shock-absorbing column 41 are sleeved on the outer side of the shock-absorbing column 41, one end of the shock-absorbing column 41 is fixedly connected with a base 4, jacks of ground nails 5 are arranged on the surface of the base 4, the surface of the base 4 is movably sleeved with the ground nails 5, the ground nails 5 can be prevented from slipping with the ground, one end of the ground nail 5 is provided with a limiting cap 51 with holes, so that the ground nail 5 can be conveniently pried out of the ground.

The inner wall fixedly connected with bracing piece 32 of the air inlet end of helicla flute 22, the one end fixedly connected with bearing 3 of bracing piece 32, the inner circle of bearing 3 is equipped with mounting hole 31, the inner wall of mounting hole 31 and the one end fixed connection of pivot 13, bracing piece and bearing 3 can increase the rotation stability of pivot 13 and fan wheel 14, the shape of mounting hole 31 is the polygon, the one end of pivot 13 is equipped with the polygon inserted block, avoid pivot 13 and the bearing 3 inner circle to take place to skid rotatoryly.

The surface of the speed increasing box 2 is provided with an air outlet 23, one end of the air outlet 23 is communicated with the air outlet end of the spiral groove 22, the other end of the air outlet 23 is provided with an air outlet cover 24, the air outlet cover 24 is in a horn shape, a horn groove is formed in the air outlet cover 24, and the inner wall of the horn groove is provided with a spiral inner wall which can form rotational flow to the wind body.

When the outdoor large-air-volume fan is used, the base 4 is placed on the working floor, then the ground nail 5 is downwards inserted into the floor, the motor 12 is started, the motor 12 is driven to rotate by the rotation of the rotation shaft 13 to drive the fan impeller 14 to rotate, the fan impeller 14 rotates to enable external air to enter through the air inlet cover 11, then the air is blown into the spiral groove 22 to enable the air to rotate along the spiral groove 22 to form rotational flow, then the air forming rotational flow is blown out after being accelerated through the air outlet 23 and the air outlet cover 24, meanwhile, vibration force generated by the motor 12, vibration force generated by the operation of the fan impeller 14 and vibration force generated by the acceleration box 2 when the air is formed into rotational flow can be reduced by the shock-absorbing column 41 and the shock-absorbing spring 42, meanwhile, the base 4 is fixed by the ground nail 5, the fan can not move or rotate to automatically adjust the air inlet and outlet direction, after the fan is not used, the motor 12 is powered off, then the air is inserted into a hole formed by the limit cap 51 through the stress bar, the upward prying nail 5, the lower end of the ground nail 5 is separated from the floor upwards, then the fan can be moved, and the vibration force generated by the acceleration box 2 can be increased through the spiral plate 21 and the spiral groove and the vibration force can be increased in the vibration-absorbing column and the vibration-absorbing column 4, the vibration-free air-volume fan can be greatly increased, and the vibration-free air-volume fan can be increased by the vibration-damping device can be increased by the vibration damper has the vibration-damping effect of the vibration fan 4, and the vibration can be increased through the vibration, and the vibration-damping device, and the vibration can be increased and the vibration-damping efficiency.

The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (7)

1. The outdoor large-air-volume fan comprises a fan shell (1), an air inlet cover (11) is arranged on one side of the fan shell (1), and is characterized in that a fan impeller (14) is fixedly connected to the other side of the fan shell (1), a spiral plate (21) is fixedly connected to the inside of the fan shell (1), a spiral groove (22) is formed in the periphery of the spiral plate (21) and the inner wall of the fan shell (2), a connecting rod (16) is fixedly connected to the inner wall of the fan shell (1), a fixed sleeve (15) is fixedly connected to one end of the connecting rod (16), a motor (12) is fastened to the surface of the fixed sleeve (15) through a bolt, a rotating shaft (13) is arranged at the output end of the motor (12), a fan impeller (14) is fixedly connected to the surface of the rotating shaft (13), a connecting plate (43) is fixedly connected to the bottom of the fan shell (1) and the fan impeller (2), a damping column (41) is fixedly connected to the bottom of the connecting plate (43), a damping spring (42) is sleeved on the outer side of the damping column (41), and a damping nail (4) is sleeved on the surface of the base (4).

2. The outdoor large-air-volume fan according to claim 1, wherein the inner wall of the air inlet end of the spiral groove (22) is fixedly connected with a supporting rod (32), one end of the supporting rod (32) is fixedly connected with a bearing (3), the inner ring of the bearing (3) is provided with a mounting hole (31), and the inner wall of the mounting hole (31) is fixedly connected with one end of the rotating shaft (13).

3. The outdoor large-air-volume fan according to claim 1, wherein the fixing sleeve (15) is formed by encircling two rotatable semicircular plates, bolt holes are formed in the surface of the fixing sleeve (15), and a screw is fixedly connected to the surface of the motor (12).

4. The outdoor large-air-volume fan according to claim 1, wherein an air outlet (23) is formed in the surface of the speed increasing box (2), one end of the air outlet (23) is communicated with the air outlet end of the spiral groove (22), and an air outlet cover (24) is arranged at the other end of the air outlet (23).

5. The outdoor large-air-volume fan according to claim 4, wherein the air outlet cover (24) is in a horn shape, a horn groove is formed in the air outlet cover (24), and a spiral inner wall is arranged on the inner wall of the horn groove.

6. The outdoor large-air-volume fan according to claim 2, wherein the mounting hole (31) is polygonal, and a polygonal insertion block is arranged at one end of the rotating shaft (13).

7. The outdoor large-air-volume fan according to claim 1, wherein one end of the ground nail (5) is provided with a limiting cap (51) with holes.