Fan equipment for waste gas

Abstract

The utility model belongs to the technical field of draught fans, and particularly discloses draught fan equipment for waste gas, which comprises a draught fan, a communicating pipe is fixedly communicated with an air opening of the draught fan, a rotating ring is fixedly connected with the outer surface of the communicating pipe, a rubber layer is arranged on the outer surface of the rotating ring, and a rotating disc is rotatably connected with the outer surface of the rotating ring. And an air conveying pipe is fixedly connected to the top of the rotating disc, a position adjusting mechanism used for adjusting the connecting-in angle of the air conveying pipe is arranged on the outer surface of the draught fan and comprises a protection box fixedly connected to the outer surface of the draught fan, and a screw rod is rotationally connected to the inner side of the protection box. According to the fan equipment for waste gas, the connecting angle of the air conveying pipe can be finely adjusted through the position adjusting mechanism by shaking a crank outside, that is, in the process of pushing and pulling the position guiding disc rod through the two sets of position shifting strips, the rotating disc rotates along the surface of the rotating ring till the air conveying pipe on the rotating disc rotates to the proper connecting angle, and therefore the accuracy of the connecting angle is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of fan technology, and specifically to a fan device for exhaust gas. Background Art

[0002] A fan is a mechanical device used to generate airflow and transport gas. During the waste gas treatment process, the waste gas generated needs to be transported to the treatment equipment or emission system. At this time, the fan generates negative pressure or positive pressure to guide the waste gas from the treatment area to the treatment unit or emission equipment.

[0003] During the process of the fan treating exhaust gas, the fan's air duct access angle is generally fixed. The fixed air duct access angle may lead to efficiency loss. If the exhaust gas already has a certain movement direction or speed before entering the fan, and it does not match the angle of the fan's air inlet, it may cause the air flow resistance to increase, thereby affecting the fan's working efficiency. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings of the background technology and to propose a fan device for exhaust gas to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the utility model provides a fan device for exhaust gas, including a fan, a connecting pipe fixedly connected at the air outlet of the fan, a swivel fixedly connected to the outer surface of the connecting pipe, a rubber layer provided on the outer surface of the swivel, a turntable rotatably connected to the outer surface of the swivel, an air duct fixedly connected to the top of the turntable, and an adjustment mechanism for adjusting the access angle of the air duct provided on the outer surface of the fan.

[0006] Preferably, the positioning mechanism includes a protective box fixedly connected to the outer surface of the fan, and a screw is rotatably connected to the inner side of the protective box. The positioning mechanism can cause the turntable to rotate slightly, thereby linking the air duct to fine-tune the access angle.

[0007] Preferably, the end of the screw away from the air duct is fixedly connected to a crank, the outer surface of the screw is threadedly sleeved with a shift screw plate, and the surface of the screw is provided with threads of the same length and opposite directions from the middle to both ends, and each group of threaded surfaces is threadedly sleeved with a corresponding shift screw plate.

[0008] Preferably, a shift rod is fixedly connected to the inner side of the shift screw plate, and a fixing platform is fixedly sleeved on the outer surface of the shift rod.

[0009] Preferably, the top of the fixed platform is fixedly connected to a turntable, and the top of the turntable is rotatably connected to a shift bar.

[0010] Preferably, a guide plate rod is fixedly provided on the inner side of the turntable, and the outer surface of the guide plate rod is rotatably connected to the end of the shift bar away from the turntable. The two groups of shift bars are driven by the shift screw plate to move in opposite directions.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The exhaust gas fan equipment can fine-tune the access angle of the air duct through the adjustment mechanism by shaking the crank handle externally. That is, when the two sets of dial bars push and pull the guide plate rod, the turntable rotates along the surface of the rotating ring until the air duct on the turntable is rotated to the appropriate access angle to ensure the accuracy of the access angle.

[0013] 2. In the exhaust gas fan equipment, when the turntable rotates along the rotating ring, due to the presence of the rubber layer, after the adjustment of the access angle of the air duct is completed, the connection sealing between the turntable and the connecting pipe can be ensured, which effectively improves the connection stability of the device and ensures that the device is in a good sealing state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the protective box for this application;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the turntable of this application.

[0017] Among them: 1. Fan; 2. Connecting pipe; 3. Rotating ring; 4. Rubber layer; 5. Turntable; 6. Air duct; 7. Protective box; 8. Screw; 9. Crank handle; 10. Shifting screw plate; 11. Shifting rod; 12. Fixed platform; 13. Turntable; 14. Shifting bar; 15. Guide plate rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] See also Figure 1-3A fan device for exhaust gas includes a fan 1, a connecting pipe 2 is fixedly connected to the air outlet of the fan 1, a swivel 3 is fixedly connected to the outer surface of the connecting pipe 2, a rubber layer 4 is provided on the outer surface of the swivel 3, a turntable 5 is rotatably connected to the outer surface of the swivel 3, an air duct 6 is fixedly connected to the top of the turntable 5, and an adjustment mechanism for adjusting the access angle of the air duct 6 is provided on the outer surface of the fan 1.

[0020] Through the above technical solution, the fan 1 exchanges airflow with the air duct 6 through the connecting pipe 2 when in use. During this process, the access angle of the air duct 6 can be adjusted through the adjustment mechanism without untying the air duct 6.

[0021] Specifically, the positioning mechanism includes a protection box 7 fixedly connected to the outer surface of the fan 1, and a screw 8 is rotatably connected to the inner side of the protection box 7.

[0022] With the above technical solution, since the outer surface of the screw rod 8 is provided with threads of the same length and in opposite directions from the middle to both ends, the two sets of displacement screw plates 10 will move in opposite directions during the rotation of the screw rod 8.

[0023] Specifically, one end of the screw rod 8 away from the air supply pipe 6 is fixedly connected to a crank handle 9 , and a displacement screw plate 10 is threadedly sleeved on the outer surface of the screw rod 8 .

[0024] Through the above technical solution, when the shift screw plate 10 moves in the reverse direction, the shift rod 11 will move synchronously therewith.

[0025] Specifically, a shift rod 11 is fixedly connected to the inner side of the shift screw plate 10 , and a fixing platform 12 is fixedly sleeved on the outer surface of the shift rod 11 .

[0026] Through the above technical solution, the movement of the shift rod 11 will drive the fixed platform 12 to move synchronously, thereby pulling the shift bar 14.

[0027] Specifically, the top of the fixed platform 12 is fixedly connected to the turntable 13 , and the top of the turntable 13 is rotatably connected to the shift bar 14 .

[0028] Through the above technical solution, the shift bar 14 will slightly rotate along the turntable 13 when being pulled or pushed forward.

[0029] Specifically, a guide plate rod 15 is fixedly provided on the inner side of the turntable 5 , and an outer surface of the guide plate rod 15 is rotatably connected to an end of the shift bar 14 away from the turntable 13 .

[0030] Through the above technical solution, when the shifting bars 14 rotate along the guide plate rod 15, one group of shifting bars 14 pushes it, and the other group of shifting bars 14 pulls it.

[0031] Working principle: During the use of the fan 1, the air flow is communicated with the air duct 6 through the connecting pipe 2. Considering that the connection angle of the air duct 6 will affect the working efficiency of the fan 1, an adjustment mechanism is designed. The connection angle of the air duct 6 can be fine-tuned by the adjustment mechanism. It is only necessary to shake the crank 9 from the outside to drive the screw 8 to rotate. During the rotation of the screw 8, the two sets of shifting screw plates 10 will move in opposite directions along the surface of the screw 8. When the two sets of shifting screw plates 10 are in the process of approaching or moving away from each other, the shift rods 11 on the corresponding shifting screw plates 10 will drive the fixed platform 12 to move synchronously, thereby linking the turntable 13 During the shifting process, one set of shift bars 14 will push the turntable 5 through the guide plate rod 15, and the other set of shift bars 14 will pull the other set of guide plate rods 15. The two sets of shift bars 14 will rotate along the surface of the guide plate rod 15 in the process of pushing and pulling the guide plate rod 15, so that the turntable 5 will rotate along the surface of the swivel 3 until the air duct 6 on the turntable 5 is rotated to a suitable access angle. The rubber layer 4 can ensure that the air duct 6 is always in a good sealing state with the connecting pipe 2 after turning, and the protective box 7 has a good protective effect on the entire connection, reducing its erosion by the outside world. (What needs to be explained in detail and in particular is that the two shift screw plates 10 are respectively connected to the two shift rods 11, one of which is fixedly connected to the shift screw plate 10, and the other can flexibly pass through the shift screw plate 10, and one end of the shift bar 14 is rotatably connected to the turntable 13. Therefore, in the process of turning the crank 9, the screw 8 with the same length and opposite threads from the middle to the two ends will drive the two groups of shift screw plates 10 threadedly connected thereto to move in opposite directions, thereby linking the two groups of shift rods 11 and the turntable 13 on the fixed platform 12 to move in opposite directions synchronously. At this time, one shift bar 14 pulls one guide disk rod 15, and the other shift bar 14 pushes the other guide disk rod 15. In conjunction with the rotation of the shift bar 14 on the turntable 13, the deflection of the shift bar 14 can be achieved (that is, the turntable 5 is allowed to rotate by the shift bar 14 and the guide disk rod 15)).

[0032] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fan device for exhaust gas, comprising a fan (1), characterized in that: A connecting pipe (2) is fixedly connected to the air outlet of the fan (1); a rotating ring (3) is fixedly connected to the outer surface of the connecting pipe (2); a rubber layer (4) is provided on the outer surface of the rotating ring (3); a turntable (5) is rotatably connected to the outer surface of the turntable (3); an air supply pipe (6) is fixedly connected to the top of the turntable (5); and a positioning mechanism for adjusting the access angle of the air supply pipe (6) is provided on the outer surface of the fan (1).

2. A fan device for exhaust gas according to claim 1, characterized in that: The positioning mechanism comprises a protection box (7) fixedly connected to the outer surface of the fan (1), and a screw (8) is rotatably connected to the inner side of the protection box (7).

3. The exhaust gas blower device according to claim 2, characterized in that: One end of the screw rod (8) away from the air delivery pipe (6) is fixedly connected to a crank handle (9), and a displacement screw plate (10) is threadedly sleeved on the outer surface of the screw rod (8).

4. The exhaust gas blower device according to claim 3, characterized in that: The inner side of the shift screw plate (10) is fixedly connected to a shift rod (11), and the outer surface of the shift rod (11) is fixedly sleeved with a fixing platform (12).

5. The exhaust gas blower device according to claim 4, characterized in that: The top of the fixed platform (12) is fixedly connected to a turntable (13), and the top of the turntable (13) is rotatably connected to a shift bar (14).

6. The exhaust gas blower device according to claim 5, characterized in that: A guide disc rod (15) is fixedly provided on the inner side of the turntable (5), and the outer surface of the guide disc rod (15) is rotatably connected to the end of the shifting bar (14) away from the turntable (13).

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