Centrifugal impeller with adjustable impeller angle

Abstract

The utility model discloses a centrifugal impeller with an adjustable impeller angle, which relates to the field of centrifugal machines and comprises a bottom plate, a hollow plate is mounted at the rear end of the bottom plate, an adjusting component is arranged on the left side of the hollow plate, a shell is movably sleeved with the hollow plate, and the adjusting component extends into the hollow plate. An exhaust pipe is fixedly connected to the outer surface of the shell in a penetrating mode, a front end cover is installed at the front end of the shell, a centrifugal impeller is arranged in the shell, and a connecting shaft is installed at the rear end of the centrifugal impeller. The integral angle of the impeller can be adjusted by arranging the adjusting component, so that the exhaust pipe can be aligned and connected with the exhaust square pipe, the adaptability of equipment under different working conditions is improved, different mounting environments are met, and the service life of the equipment is prolonged. By arranging the telescopic hose, the connecting pipe and the connecting disc, the exhaust pipe can be communicated with the exhaust square pipes which are not on the same horizontal line, and the problem that a fixed pipeline is difficult to adapt to installation at different positions and angles is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a centrifugal impeller with adjustable impeller angle. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and deliver gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings.

[0003] The prior art (Announcement No.: CN 219159217 U) discloses a centrifugal fan, comprising two fixed feet, both sides of the top surfaces of the two fixed feet are fixedly connected with piston tubes, the tops of the four piston tubes are commonly fixedly connected with a connecting plate, the inner walls of the four piston tubes are slidably connected with pistons, a plurality of air leakage holes are provided at the bottoms of the sides of the four piston tubes, the tops of the pistons are fixedly connected with guide columns, the tops of the four guide columns are commonly fixedly connected with a fan seat, the top of the fan seat is fixedly connected with a fan casing, the tops of the four guide columns all penetrate the connecting plate, the tops of the outer walls of the four guide columns are sleeved with buffer springs, the buffer springs are located between the top surface of the connecting plate and the bottom surface of the fan seat, and the length of the buffer spring after resetting is greater than the length of the guide column.

[0004] Although the above patent allows the fan casing to impact downward when vibration occurs and slides stably through the guide column and the piston tube, it has the following disadvantages: when in use, the angle of the air outlet cannot be adjusted by adjusting the angle of the impeller, and the position of the air outlet cannot be adjusted, which makes the equipment less adaptable under different working conditions and inconvenient to connect with the exhaust square pipe. Further improvement is needed, for which we propose a centrifugal impeller with adjustable impeller angle. Utility Model Content

[0005] The main purpose of the utility model is to provide a centrifugal impeller with adjustable impeller angle, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A centrifugal impeller with adjustable impeller angle comprises a base plate, a hollow plate is installed at the rear end of the base plate, an adjusting component is arranged on the left side of the hollow plate, a shell is movably sleeved inside the hollow plate, the adjusting component extends into the hollow plate, an exhaust duct is fixedly inserted and connected to the outer surface of the shell, a front end cover is installed at the front end of the shell, a centrifugal impeller is arranged inside the shell, a connecting shaft is installed at the rear end of the centrifugal impeller, and the thickness of the connecting shaft is movably inserted to the rear end of the shell.

[0008] Preferably, the adjusting component includes a knob, which is arranged on the left side of the hollow plate, and a worm is installed on the right end of the knob. The right end of the worm is movably inserted into the hollow plate and movably connected to the right inner wall of the hollow plate. The worm is meshingly connected with a worm wheel, and the worm wheel is fixedly sleeved on the outer cylindrical surface of the shell.

[0009] Preferably, a telescopic hose is connected to the upper end of the exhaust pipe, a connecting pipe is installed on the upper end of the telescopic hose, and a connecting plate is installed on the upper end of the connecting pipe.

[0010] Preferably, fixing blocks are installed at the front and rear ends of the connecting pipe and the exhaust pipe 7, and bolts are provided between the upper and lower fixing blocks.

[0011] Preferably, the worm gear is located inside the hollow plate.

[0012] Preferably, fixing holes are formed at the four corners of the upper end of the bottom plate.

[0013] Preferably, an air inlet is provided in the middle of the front end of the front end cover, and the front end cover is detachably connected to the front end of the shell through a screw.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The overall angle of the impeller can be adjusted by setting the adjustment component. When the exhaust pipe is not convenient to connect with the exhaust square pipe, the knob is turned to drive the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the exhaust pipe to rotate through the housing, so that the exhaust pipe can be aligned with the exhaust square pipes that are not in the same position, which improves the adaptability of the equipment under different working conditions and meets different installation environments;

[0016] 2. By setting up a telescopic hose, a connecting pipe and a connecting plate, the exhaust duct can be connected to the exhaust square pipe which is not on the same horizontal line. When the exhaust duct and the exhaust square pipe are not on the same horizontal line, loosen the two bolts. Since the telescopic hose can bend and deform arbitrarily, the connecting plate can be connected to the exhaust square pipe, which solves the problem that the fixed pipe is difficult to adapt to the installation of different positions and angles. At the same time, the telescopic hose can compensate for the thermal expansion and contraction of the pipe caused by temperature changes, avoid stress concentration at the pipe connection, and reduce the risk of pipe damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the entire structure proposed in this embodiment;

[0018] Figure 2 is another perspective structural schematic diagram of this embodiment;

[0019] Figure 3 Schematic diagram of the structure of the adjusting component in this embodiment;

[0020] Figure 4 It is a schematic diagram of the local structure in this embodiment.

[0021] In the figure: 1. bottom plate; 2. fixing hole; 3. hollow plate; 4. adjusting component; 5. shell; 6. front cover; 7. exhaust duct; 8. centrifugal impeller; 9. connecting shaft; 10. connecting pipe; 11. fixing block; 12. bolt; 13. telescopic hose; 14. connecting plate; 15. air inlet; 41. knob; 42. worm; 43. worm wheel. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-Figure 4 As shown, a centrifugal impeller with adjustable impeller angle comprises a base plate 1, a hollow plate 3 is installed at the rear end of the base plate 1, an adjusting component 4 is arranged on the left side of the hollow plate 3, a shell 5 is movably sleeved inside the hollow plate 3, the adjusting component 4 extends into the hollow plate 3, an exhaust duct 7 is fixedly inserted and connected to the outer surface of the shell 5, a front end cover 6 is installed at the front end of the shell 5, a centrifugal impeller 8 is arranged inside the shell 5, a connecting shaft 9 is installed at the rear end of the centrifugal impeller 8, the thickness of the connecting shaft 9 is movably inserted into the rear end of the shell 5, the connecting shaft 9 is used to facilitate connection with the output end of the motor, thereby driving the centrifugal impeller 8 to rotate, and a connecting hole for installing the motor is opened at the rear end of the shell 5.

[0026] The overall angle of the impeller can be adjusted by the adjusting component 4, so that the exhaust pipe 7 can be aligned and connected with the exhaust square pipe, which improves the adaptability of the equipment under different working conditions and meets different installation environments. The specific structure is: the adjusting component 4 includes a knob 41, the knob 41 is arranged on the left side of the hollow plate 3, and a worm 42 is installed on the right end of the knob 41. The right end of the worm 42 is movably inserted into the hollow plate 3 and movably connected to the right inner wall of the hollow plate 3. The worm 42 is meshed with a worm wheel 43, and the worm 42 and the worm wheel 43 are self-locking. The worm wheel 43 is fixedly sleeved on the outer cylindrical surface of the shell 5, and the worm wheel 43 is located in the hollow plate 3.

[0027] A telescopic hose 13 is connected to the upper end of the exhaust duct 7, a connecting pipe 10 is installed on the upper end of the telescopic hose 13, a connecting plate 14 is installed on the upper end of the connecting pipe 10, fixing blocks 11 are installed at the front and rear ends of the connecting pipe 10 and the exhaust duct 7, and bolts 12 are commonly provided between the upper and lower fixing blocks 11, and the bolts 12 are used to fix the connecting pipe 10 on the exhaust duct 7. The telescopic hose 13, the connecting pipe 10 and the connecting plate 14 are used to connect the exhaust duct 7 with the non-aligned exhaust square pipe. When the exhaust duct 7 and the exhaust square pipe are not on the same horizontal line, the two bolts 12 are loosened. Since the telescopic hose 13 can be bent and deformed arbitrarily, the connecting plate 14 can be connected to the exhaust square pipe, thereby solving the problem that the fixed pipe is difficult to adapt to installation at different positions and angles. At the same time, the telescopic hose 13 can compensate for the thermal expansion and contraction of the pipe due to temperature changes, avoid stress concentration at the pipe connection, and reduce the risk of pipe damage.

[0028] There are fixing holes 2 at the four corners of the upper end of the bottom plate 1 , and the fixing holes 2 are used to facilitate fixing the bottom plate 1 .

[0029] An air inlet 15 is provided in the middle of the front end of the front cover 6 , and the front cover 6 is detachably connected to the front end of the housing 5 via a screw.

[0030] The utility model proposes a centrifugal impeller with adjustable impeller angle. When in use, the base plate 1 is placed at a specified position, and the screw is inserted into the fixing hole 2 for fixing. When the exhaust pipe 7 is not convenient to connect with other pipelines, the knob 41 is turned to drive the worm 42 to rotate, and the worm 42 drives the worm wheel 43 to rotate. The worm wheel 43 drives the exhaust pipe 7 to rotate through the shell 5, so that the exhaust pipe 7 is aligned with the exhaust square pipe, which can facilitate the connection of the exhaust pipe 7 with the exhaust square pipe. When the exhaust pipe 7 and the exhaust square pipe are not on the same horizontal line, the two bolts 12 are loosened. Since the telescopic hose 13 can be bent and deformed arbitrarily, the connecting plate 14 can be connected to the exhaust square pipe, thereby solving the problem that the fixed pipeline is difficult to adapt to the installation of different positions and angles.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A centrifugal impeller with adjustable impeller angle, comprising a bottom plate (1), characterized in that: A hollow plate (3) is installed at the rear end of the bottom plate (1), an adjusting component (4) is arranged on the left side of the hollow plate (3), a shell (5) is movably sleeved inside the hollow plate (3), the adjusting component (4) extends into the hollow plate (3), an exhaust pipe (7) is fixedly inserted and connected to the outer surface of the shell (5), a front end cover (6) is installed at the front end of the shell (5), a centrifugal impeller (8) is arranged inside the shell (5), a connecting shaft (9) is installed at the rear end of the centrifugal impeller (8), and the thickness of the connecting shaft (9) is movably inserted to the rear end of the shell (5).

2. The centrifugal impeller with adjustable impeller angle according to claim 1, characterized in that: The adjusting component (4) comprises a knob (41), the knob (41) being arranged on the left side of the hollow plate (3), a worm (42) being mounted on the right end of the knob (41), the right end of the worm (42) being movably inserted into the hollow plate (3) and movably connected to the right inner wall of the hollow plate (3), the worm (42) being meshingly connected to a worm wheel (43), and the worm wheel (43) being fixedly sleeved on the outer cylindrical surface of the housing (5).

3. The centrifugal impeller with adjustable impeller angle according to claim 1, characterized in that: The upper end of the exhaust pipe (7) is connected to a telescopic hose (13), the upper end of the telescopic hose (13) is installed with a connecting pipe (10), and the upper end of the connecting pipe (10) is installed with a connecting plate (14).

4. The centrifugal impeller with adjustable impeller angle according to claim 3, characterized in that: The front and rear ends of the connecting pipe (10) and the exhaust pipe (7) are both installed with fixing blocks (11), and bolts (12) are provided between the upper and lower fixing blocks (11).

5. The centrifugal impeller with adjustable impeller angle according to claim 2, characterized in that: The worm gear (43) is located inside the hollow plate (3).

6. The centrifugal impeller with adjustable impeller angle according to claim 1, characterized in that: The four corners of the upper end of the bottom plate (1) are all provided with fixing holes (2).

7. The centrifugal impeller with adjustable impeller angle according to claim 1, characterized in that: An air inlet (15) is provided in the middle of the front end of the front cover (6), and the front cover (6) is detachably connected to the front end of the housing (5) via a screw.

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