阅读说明：本技术 一种斜向出风口离心通风机 (Slant air outlet centrifugal fan ) 是由 梁忠义 于 2020-04-10 设计创作，主要内容包括：本发明公开了一种斜向出风口离心通风机,包括蜗壳、电动机、固定有叶轮的转动轴和底支架,所述蜗壳固定在底支架上,底支架上固定有齿轮箱,齿轮箱的输出轴通过联轴器与转动轴相连接,齿轮箱的输入轴固定有皮带轮,电动机的输出轴上固定有传动轮,皮带张紧在皮带轮和传动轮上,所述蜗壳的出风口处于右侧处的斜向方；所述蜗壳的出风口处通接有过滤连接管；所述过滤连接管的下端内侧壁成型有环形凸起圈,导风套筒插套在过滤连接管中。本发明将蜗壳的出风口向下设置,满足安装需要,同时,其在出风口处安装过滤连接管进行过滤,使得过滤连接管连通的后续管道中减少灰尘颗粒等杂质,从而减少后续输送的噪音,其效果好。(The invention discloses a centrifugal ventilator with an oblique air outlet, which comprises a volute, a motor, a rotating shaft and a bottom bracket, wherein an impeller is fixed on the rotating shaft; the air outlet of the volute is connected with a filtering connecting pipe; an annular raised ring is formed on the inner side wall of the lower end of the filtering connecting pipe, and the air guide sleeve is inserted and sleeved in the filtering connecting pipe. The air outlet of the volute is arranged downwards to meet the installation requirement, and meanwhile, the filtering connecting pipe is arranged at the air outlet to filter, so that impurities such as dust particles and the like are reduced in a subsequent pipeline communicated with the filtering connecting pipe, the noise of subsequent conveying is reduced, and the effect is good.)

1. The utility model provides a slant air outlet centrifugal fan, includes spiral case (1), motor (20), is fixed with axis of rotation (30) and bottom suspension (40) of impeller, its characterized in that: the volute (1) is fixed on the bottom bracket (40), the gear box (50) is fixed on the bottom bracket (40), an output shaft (501) of the gear box (50) is connected with the rotating shaft (30) through a coupler, a belt pulley (60) is fixed on an input shaft of the gear box (50), a driving wheel (201) is fixed on an output shaft of the motor (20), a belt (70) is tensioned on the belt pulley (60) and the driving wheel (201), and an air outlet (11) of the volute (1) is positioned in an oblique direction at the right side;

a filtering connecting pipe (12) is communicated with an air outlet (11) of the volute (1);

an annular raised ring (13) is formed on the inner side wall of the lower end of the filtering connecting pipe (12), the air guide sleeve (14) is inserted in the filtering connecting pipe (12), a plurality of air outlet through holes (141) are formed in the edge of the bottom plate of the guide sleeve (14), the filter screen cylinder (15) is inserted in the guide sleeve (14), the bottom plate of the filter screen cylinder (15) is installed in the middle of the bottom plate of the guide sleeve (14), an extending edge (151) is formed on the outer side wall of the top of the filter screen cylinder (15), the extending edge (151) is inserted in an annular sealing groove (142) formed on the inner side wall of the upper portion of the guide sleeve (14), and the extending edge (151) is fixedly connected to the bottom surface of the annular sealing groove (142) through bolts;

the side plate of the filter screen cylinder (15) is a filter screen sleeve.

2. The inclined air outlet centrifugal ventilator according to claim 1, wherein: a plurality of support rods (3) are fixed on the front wall surface and the rear wall surface of the volute (1), and the bottom ends of the support rods (3) are fixed on the top surface of the main bottom plate (41).

3. The inclined air outlet centrifugal ventilator according to claim 1, wherein: a supporting frame (42) is fixed on the main bottom plate (41), and a gear box (50) is fixed on the supporting frame (42).

4. The inclined air outlet centrifugal ventilator according to claim 1, wherein: the filtering connecting pipe (12) is sleeved with a sound insulation elastic sleeve (16), the outer side wall of the bottom end of the sound insulation elastic sleeve (16) is provided with a bottom annular groove (161), the annular raised ring (13) is nested in the bottom annular groove (161), and the bottom end of the sound insulation elastic sleeve (16) is fixed with the annular raised ring (13).

5. The inclined air outlet centrifugal ventilator according to claim 1, wherein: the outer side wall of the sound insulation elastic sleeve (16) is fixed on the inner side wall of the filtering connecting pipe (12).

6. The inclined air outlet centrifugal ventilator according to claim 1, wherein: the top surface of the sound insulation elastic sleeve (16) is fixedly provided with a connecting ring (162), the outer side wall of the upper part of the guide sleeve (14) is provided with a radial extension edge (143), and the radial extension edge (143) is fixedly connected to the top surface of the connecting ring (162) through bolts.

7. The inclined air outlet centrifugal ventilator according to claim 4, wherein: the inner side wall of the sound insulation elastic sleeve (16) is a conical inner side wall with the diameter of the upper part being larger than that of the lower part being smaller than that of the lower part, the outer side wall of the guide sleeve (14) is a conical outer wall, and the conical outer wall is tightly attached to the conical inner side wall of the sound insulation elastic sleeve (16).

The technical field is as follows:

the invention relates to the technical field of ventilation equipment, in particular to a centrifugal ventilator with an oblique air outlet.

Background art:

among the current centrifugal fan, its general air outlet is vertical ascending, need adopt the structure of air-out downwards in some specific environment, and now do not, can only blow the direction through the connecting pipe, and its effect is limited, and simultaneously, the air outlet does not generally have filtering mechanism for have dust or large granule material etc. during the air-out, can have a large amount of particles in the pipeline with the air outlet intercommunication and collide in the pipeline, and produce a large amount of noises, influence the use.

The invention content is as follows:

the invention aims to overcome the defects of the prior art and provides a centrifugal ventilator with an inclined air outlet.

The technical solution of the invention is as follows:

a centrifugal ventilator with an oblique air outlet comprises a volute, a motor, a rotating shaft and a bottom bracket, wherein an impeller is fixed on the rotating shaft, the volute is fixed on the bottom bracket, a gear box is fixed on the bottom bracket, an output shaft of the gear box is connected with the rotating shaft through a coupler, a belt pulley is fixed on an input shaft of the gear box, a driving wheel is fixed on an output shaft of the motor, the belt is tensioned on the belt pulley and the driving wheel, and an air outlet of the volute is positioned in an oblique direction at the right side;

the air outlet of the volute is connected with a filtering connecting pipe;

an annular raised ring is formed on the inner side wall of the lower end of the filtering connecting pipe, an air guide sleeve is inserted and sleeved in the filtering connecting pipe, a plurality of air outlet through holes are formed at the edge of a bottom plate of a guide sleeve, a filter screen cylinder is inserted and sleeved in the guide sleeve, the bottom plate of the filter screen cylinder is installed in the middle of the bottom plate of the guide sleeve, an extending edge is formed on the outer side wall of the top of the filter screen cylinder, the extending edge is inserted and sleeved in an annular sealing groove formed on the inner side wall of the upper portion of the guide sleeve, and the extending edge is fixedly connected to the bottom surface of the annular;

the side plate of the filter screen cylinder is a filter screen sleeve.

A plurality of support rods are fixed on the front wall surface and the rear wall surface of the volute, and the bottom ends of the support rods are fixed on the top surface of the main bottom plate.

A support frame is fixed on the main bottom plate, and the gear box is fixed on the support frame.

The filtering connecting pipe is sleeved with a sound insulation elastic sleeve in a sleeved mode, the outer side wall of the bottom end of the sound insulation elastic sleeve is provided with a bottom annular groove, the annular convex ring is nested in the bottom annular groove, and the bottom end of the sound insulation elastic sleeve is fixed with the annular convex ring.

The outer side wall of the sound insulation elastic sleeve is fixed on the inner side wall of the filtering connecting pipe.

The top surface of the sound insulation elastic sleeve is fixedly provided with a connecting ring, the outer side wall of the upper part of the guide sleeve is provided with a radial extension edge, and the radial extension edge is fixedly connected to the top surface of the connecting ring through a bolt.

The inside wall of the sound-insulation elastic sleeve is a conical inside wall with a large upper diameter and a small lower diameter, the outside wall of the guide sleeve is a conical outer wall, and the conical outer wall is tightly attached to the conical inside wall of the sound-insulation elastic sleeve.

The invention has the beneficial effects that: it sets up the air outlet of spiral case downwards, satisfies the installation needs, and simultaneously, it filters the connecting pipe in air outlet department installation for reduce impurity such as dust granule in the follow-up pipeline of filtering the connecting pipe intercommunication, thereby reduce the noise of follow-up transport, its is effectual.

Description of the drawings:

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

FIG. 2 is a partial left side view of the present invention;

fig. 3 is a partial sectional view of a filtering connection pipe of the present invention.

The specific implementation mode is as follows: