CN213838962U

CN213838962U - Fan blade angle-adjustable explosion-proof fan

Info

Publication number: CN213838962U
Application number: CN202022024807.2U
Authority: CN
Inventors: 唐秀泉
Original assignee: Sanhe Environment Protecting Ventilation Fan Co ltd
Current assignee: Sanhe Environment Protecting Ventilation Fan Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-07-30
Anticipated expiration: 2030-09-16

Abstract

The utility model provides an explosion-proof fan of flabellum angularly adjustable. The explosion-proof fan with the angle-adjustable fan blades comprises an annular shell; the two receiving blocks are respectively and rotatably arranged on two sides of the annular shell; the cylindrical block is arranged in the annular shell, and the two receiving blocks are fixedly arranged on the outer walls of the two sides of the cylindrical block respectively; the four fixed connecting blocks are fixedly arranged on the cylindrical block; the four connecting rods are respectively and fixedly arranged on the corresponding fixed connecting blocks; the four connecting blocks are respectively fixedly arranged at one end of the corresponding connecting rod far away from the corresponding fixed connecting block; the first motor is arranged in the cylindrical block. The utility model provides an explosion-proof fan of flabellum angularly adjustable has convenient to use, is convenient for adjust, use more nimble, the advantage that has improved the practicality to the angle of flabellum.

Description

Fan blade angle-adjustable explosion-proof fan

Technical Field

The utility model relates to an explosion-proof fan technical field especially relates to an explosion-proof fan of flabellum angularly adjustable.

Background

The explosion-proof fan is an electromotor used in flammable and explosive gas places to avoid safety accidents caused by flammable and explosive substances, and firstly, the explosion-proof fan must adopt an explosion-proof electromotor; the explosion-proof fan is applied to the occasion with explosion hazard, and not only has the fan characteristics required by working conditions, but also has to meet the explosion-proof requirement, and the overflowing component of the explosion-proof fan needs to be made of soft and hard matched materials, generally speaking, the overflowing component between a rotating component and a fixed component needs to be soft or hard to prevent the components from generating sparks due to friction or collision when faults occur. The common material cooperation is that the blade, the front disc, the rear disc and the blade rivet of the impeller are made of duralumin made of 2A01 material, the volute is made of galvanized sheet, and is suitable for conveying inflammable, explosive and non-corrosive gas, the environmental temperature is not more than 60 ℃, the volute is widely applied to ventilation or strong heating radiation in general factories, warehouses, offices and houses, and can also be installed in series at intervals in a longer exhaust pipeline to improve the pressure in the pipeline, and the free fan can be manufactured by dismounting the motor.

However, in the prior art, the motor arranged in the explosion-proof fan is fixedly installed, the blowing wind direction of the motor faces towards a fixed position, and the orientation angle of the fan blade on the fan needs to be adjusted sometimes in the using process so as to change the wind direction.

Therefore, it is necessary to provide a new explosion-proof fan with adjustable fan blade angle to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a convenient to use, be convenient for adjust, use more nimble, the explosion-proof fan of flabellum angularly adjustable of practicality to the angle of flabellum.

In order to solve the technical problem, the utility model provides an explosion-proof fan of flabellum angularly adjustable includes: an annular housing; the two receiving blocks are respectively and rotatably arranged on the inner walls of the two sides of the annular shell; the cylinder block is arranged in the annular shell, and the two receiving blocks are fixedly arranged on two sides of the cylinder block respectively; the four fixed connecting blocks are fixedly arranged on the cylindrical block; the four connecting rods are respectively and fixedly arranged on the corresponding fixed connecting blocks; the four connecting blocks are respectively fixedly arranged at one end of the corresponding connecting rod far away from the corresponding fixed connecting block; the first motor is arranged in the cylindrical block, and the four assembling and connecting blocks are fixedly connected with the first motor; the three fan blades are all welded on an output shaft of the first motor; the welding block is fixedly arranged on the cylindrical block; the traction rod is rotatably arranged on the welding block; the corresponding block is rotatably arranged on one end of the traction rod, which is far away from the welding block; the rotating shaft rod is rotatably arranged in the annular shell; the second motor is arranged in the annular shell, and an output shaft of the second motor is fixedly connected with one end of the rotating shaft rod; the round block is fixedly sleeved on the rotating shaft rod; and the welding fixed block is welded on the circular block, and the corresponding block is fixedly connected with the corresponding welding fixed block.

Preferably, a safety block is fixedly mounted on the inner wall of one side of the annular shell and is fixedly connected with the second motor.

Preferably, one end of the rotating shaft rod, which is far away from the second motor, is rotatably provided with a bearing block, and the bearing block is fixedly connected with the inner wall of one side of the annular shell.

Preferably, two recessed grooves are formed in the inner walls of the two sides of the annular shell, two switching bearings are fixedly mounted on the inner walls of the recessed grooves, and the switching bearings are respectively fixedly sleeved on the corresponding receiving blocks.

Preferably, four the fixed connecting blocks and four the assembling and connecting blocks are all provided with two fixing bolts in a threaded manner, and the fixing bolts are in threaded connection with the four connecting rods.

Preferably, the two welding blocks and the two corresponding blocks are all rotatably provided with a bearing rod, and the two bearing rods are rotatably connected with the two traction rods.

Compared with the prior art, the utility model provides an explosion-proof fan of flabellum angularly adjustable has following beneficial effect:

the utility model provides an explosion-proof fan of flabellum angularly adjustable thereby makes the cylinder piece produce a little motion in annular housing under the transfer of second motor to adjust the directional direction of flabellum, with the requirement that satisfies the use.

Drawings

Fig. 1 is a schematic top view of an explosion-proof blower with adjustable fan blade angle according to a preferred embodiment of the present invention;

FIG. 2 is a front sectional view of the present invention;

fig. 3 is a left side view schematic sectional structure of the present invention.

Reference numbers in the figures: 1. an annular housing; 2. a receiving block; 3. a cylindrical block; 4. fixing the connecting block; 5. connecting the connecting rod; 6. assembling a connecting block; 7. a first motor; 8. a fan blade; 9. welding the blocks; 10. A traction rod; 11. a corresponding block; 12. a spindle rod; 13. a second motor; 14. a circular block; 15. and (6) welding the blocks.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic top view, a cross-sectional structural view illustrating an explosion-proof fan with adjustable fan blade angles according to a preferred embodiment of the present invention; FIG. 2 is a front sectional view of the present invention; fig. 3 is a left side view schematic sectional structure of the present invention. Explosion-proof fan of flabellum angularly adjustable includes: an annular housing 1; the two receiving blocks 2 are respectively and rotatably arranged on the inner walls of the two sides of the annular shell 1; the cylindrical block 3 is arranged in the annular shell 1, and the two receiving blocks 2 are fixedly arranged on two sides of the cylindrical block 3 respectively; the four fixed connecting blocks 4 are all fixedly arranged on the cylindrical block 3; the four connecting rods 5 are respectively and fixedly arranged on the corresponding fixed connecting blocks 4; the four assembling blocks 6 are respectively fixedly arranged at one end of the corresponding connecting rod 5 far away from the corresponding fixed connecting block 4; the first motor 7 is arranged in the cylinder block 3, and the four assembling blocks 6 are fixedly connected with the first motor 7; the three fan blades 8 are all welded on an output shaft of the first motor 7; the welding block 9, the said welding block 9 is fixedly mounted on cylinder block 3; the traction rod 10 is rotatably arranged on the welding block 9; the corresponding block 11 is rotatably arranged on one end, far away from the welding block 9, of the traction rod 10; a rotating shaft rod 12, wherein the rotating shaft rod 12 is rotatably arranged in the annular shell 1; the second motor 13 is arranged in the annular shell 1, and an output shaft of the second motor 13 is fixedly connected with one end of the rotating shaft rod 12; the round block 14 is fixedly sleeved on the rotating shaft rod 12; and the welding fixing block 15 is welded on the circular block 14, and the corresponding block 11 is fixedly connected with the corresponding welding fixing block 15.

And a safety block is fixedly mounted on the inner wall of one side of the annular shell 1 and is fixedly connected with the second motor 13.

One end of the rotating shaft rod 12, which is far away from the second motor 13, is rotatably provided with a bearing block, and the bearing block is fixedly connected with the inner wall of one side of the annular shell 1.

Two recessed grooves are formed in the annular shell 1, two switching bearings are fixedly mounted on the inner walls of the recessed grooves, and the switching bearings are respectively fixedly sleeved on the corresponding receiving blocks 2.

Four decide even piece 4 and four equal threaded mounting has two fixing bolt on the dress connects piece 6, and is a plurality of fixing bolt and four connect 5 threaded connection of connecting rod.

And the welding block 9 and the corresponding block 11 are rotatably provided with a bearing rod, and the two bearing rods are rotatably connected with the traction rod 10.

The utility model provides an explosion-proof fan of flabellum angularly adjustable's theory of operation as follows:

when the fan blade angle of the fan needs to be adjusted, the second motor 13 is started first, the output shaft of the second motor 13 drives the rotating shaft rod 12 to rotate, the rotating shaft rod 12 drives the circular block 14 to rotate, the circular block 14 drives the welding fixed block 15, the welding fixed block 15 rotates by taking the rotating shaft rod 12 as the center of a circle, the welding fixed block 15 drives the traction rod 10 to move upwards through the corresponding block 11, the cylinder block 3 moves under the matching action of the welding block 9 under the stress, the cylinder block 3 drives the two corresponding blocks 2, the cylinder block 3 rotates by taking the two corresponding blocks 2 as the center of a circle, the pointing direction of the cylinder block 3 is adjusted, the cylinder block 3 drives the first motor 7 and the three fan blades 8 while moving, and accordingly the adjustment of the fan blade angle is completed.

the utility model provides an explosion-proof fan of flabellum angularly adjustable thereby makes cylinder piece 3 produce a little motion in annular housing 1 under the transfer of second motor 13 to adjust the directive direction of flabellum 8, with the requirement that satisfies the use.

It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of this design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and the details of the power mechanism, the power supply system, and the control system can be clearly known on the premise that those skilled in the art understand the principle of the present invention.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof fan of flabellum angularly adjustable which characterized in that includes:

an annular housing;

the two receiving blocks are respectively and rotatably arranged on the inner walls of the two sides of the annular shell;

the cylinder block is arranged in the annular shell, and the two receiving blocks are fixedly arranged on two sides of the cylinder block respectively;

the four fixed connecting blocks are fixedly arranged on the cylindrical block;

the four connecting rods are respectively and fixedly arranged on the corresponding fixed connecting blocks;

the four connecting blocks are respectively fixedly arranged at one end of the corresponding connecting rod far away from the corresponding fixed connecting block;

the first motor is arranged in the cylindrical block, and the four assembling and connecting blocks are fixedly connected with the first motor;

the three fan blades are all welded on an output shaft of the first motor;

the welding block is fixedly arranged on the cylindrical block;

the traction rod is rotatably arranged on the welding block;

the corresponding block is rotatably arranged on one end of the traction rod, which is far away from the welding block;

the rotating shaft rod is rotatably arranged in the annular shell;

the second motor is arranged in the annular shell, and an output shaft of the second motor is fixedly connected with one end of the rotating shaft rod;

the round block is fixedly sleeved on the rotating shaft rod;

and the welding fixed block is welded on the circular block, and the corresponding block is fixedly connected with the corresponding welding fixed block.

2. The explosion-proof fan with the fan blades adjustable in angle as claimed in claim 1, wherein a fixing block is fixedly mounted on the inner wall of one side of the annular housing, and the fixing block is fixedly connected with the second motor.

3. The explosion-proof fan with the angle-adjustable fan blades as claimed in claim 1, wherein a bearing block is rotatably mounted at one end of the rotating shaft rod away from the second motor, and the bearing block is fixedly connected with the inner wall of one side of the annular housing.

4. The explosion-proof fan with the fan blade adjustable in angle as claimed in claim 1, wherein two concave grooves are formed in the inner walls of the two sides of the annular housing, the inner walls of the two concave grooves are fixedly provided with the adapter bearings, and the two adapter bearings are respectively and fixedly sleeved on the corresponding receiving blocks.

5. The explosion-proof fan with the fan blade adjustable in angle as claimed in claim 1, wherein two fixing bolts are respectively installed on the four fixing blocks and the four assembling blocks in a threaded manner, and the plurality of fixing bolts are in threaded connection with the four connecting rods.

6. The explosion-proof fan with the fan blade adjustable in angle as claimed in claim 1, wherein the two welding blocks and the two corresponding blocks are respectively and rotatably provided with a stress bearing rod, and the two stress bearing rods are respectively and rotatably connected with the two pull rods.