Penetrating type centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, and provides a penetrating type centrifugal fan which comprises a penetrating type centrifugal fan body, a ventilation opening of the penetrating type centrifugal fan body is connected with a ventilation pipe in a sleeved mode, and an air outlet pipe is arranged at the end, away from the penetrating type centrifugal fan body, of the ventilation pipe. First supporting plates are installed on the two sides of the penetrating type centrifugal fan body through damping rotating shafts, and rotating shafts are welded to the other ends of the first supporting plates. The penetrating type centrifugal fan is easy to operate and good in using effect, a supporting block is pushed to move upwards through a pneumatic lifting rod, a first supporting plate can be jacked upwards, an air outlet pipe can extend outwards by rotating a second supporting plate, a limiting rod can be inserted into a limiting hole by pressing a telescopic pressing plate, then the angle of the second supporting plate is fixed, and the practicability is high. In this way, the air outlet position of the penetrating type centrifugal fan body can be adjusted, ventilation at different height positions is facilitated, and the using effect of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, and in particular to a through-type centrifugal ventilator. Background Art

[0002] Centrifugal fans are mainly composed of: impeller, casing, coupling, and shaft. The impeller is the main working component that generates wind pressure and transmits energy; the casing is mainly used to introduce and exhaust gas, and at the same time convert part of the kinetic energy of the gas into pressure energy; the coupling is used to connect the motor and the fan to transmit torque; the shaft installs and fixes the impeller, and connects to the motor through the coupling. The toupu type centrifugal fan is a type of centrifugal fan.

[0003] A Chinese patent discloses a centrifugal fan with the publication number CN210371243U. The article states that "it includes a fan body and a base, a motor is fixedly inserted into one side of the outer shell of the fan body, the output end of the motor is connected to one end of the internal shaft of the fan body, and the other end of the shaft is provided with blades; a filter is also provided at the air outlet of the fan body; a group of fan brackets and motor brackets are provided on the base, the fan body is clamped between the fan brackets by a bolt structure, and the motor is provided on the motor bracket." However, the prior art cannot adjust the air outlet position when in use, and cannot ventilate at a specified height according to use requirements, which is not conducive to the use of the equipment. Therefore, it is very necessary to design a through-type centrifugal fan. Utility Model Content

[0004] The utility model aims to provide a centrifugal fan of the bushel type, which solves the problem in the related art that the air outlet position cannot be adjusted during use, ventilation cannot be performed at a specified height according to use requirements, and is not conducive to the use of the equipment.

[0005] The technical solution of the utility model is as follows:

[0006] A centrifugal fan of the through-type, comprising a through-type centrifugal fan body, a ventilation pipe is sleeved on the ventilation port of the through-type centrifugal fan body, and an air outlet pipe is provided on one end of the ventilation pipe away from the through-type centrifugal fan body, a first support plate is installed on both sides of the through-type centrifugal fan body through a damping rotating shaft, and a rotating shaft is welded to the other end of the first support plate, a second support plate is sleeved on the rotating shaft, and the other end of the second support plate is connected to the outer wall of the air outlet pipe through the damping rotating shaft, a plurality of limiting holes are formed at the connecting end of the second support plate and the rotating shaft, and the limiting holes are equidistantly distributed on the outside of the rotating shaft in a circular array, a telescopic pressing plate is provided on the rotating shaft, and a plurality of limiting rods are equidistantly welded on the telescopic pressing plate in a circular array, a bottom plate is welded to the outer walls of both sides of the through-type centrifugal fan body, and a pneumatic lifting rod is screwed to the top end face of the bottom plate, and a first support block is welded to the telescopic end of the pneumatic lifting rod.

[0007] Preferably, the outer wall of the second support plate is in contact with the outer wall of the first support plate, and the ventilation pipe is a telescopic plastic pipe.

[0008] Preferably, the number of the limiting holes is equal to the number of the limiting rods, and the sizes of the limiting holes and the limiting rods are the same, and both ends of the bottom of the first supporting block are inclined downward.

[0009] Preferably, a base is welded to the bottom end face of the toupu type centrifugal fan body, and a reinforcement rod is welded to the outer wall of one end of the base, a reinforcement frame is welded to the other end of the reinforcement rod, and the reinforcement frame is clamped on the outside of the toupu type centrifugal fan body.

[0010] Preferably, a pair of damping telescopic rods are provided on both sides of the main body of the toupu type centrifugal fan, and a second support block is welded to the telescopic end of the damping telescopic rod, and a cross bar is installed between two adjacent second support blocks via a damping shaft.

[0011] Preferably, a clamping plate is welded to one side of the cross bar, and a pair of connecting plates are welded to the other side of the cross bar, and threaded holes are provided on the connecting plates.

[0012] Preferably, the bottom of the main body of the toubu-type centrifugal fan is in a step-like shape, and the limiting hole and the limiting rod are both circular.

[0013] Preferably, the reinforcement rod is made of stainless steel, and the inner wall of the reinforcement frame is in contact with the outer wall of the toubu-type centrifugal fan body.

[0014] Beneficial effects of the utility model:

[0015] By pushing the first support block upward through the pneumatic lifting rod, the first support plate can be lifted up, and by rotating the second support plate, the air outlet pipe can be extended outward. By pressing the telescopic pressing plate, the limit rod can be inserted into the limit hole, thereby fixing the angle of the second support plate. This method can adjust the air outlet position of the main body of the Toupu centrifugal fan, which is conducive to ventilation at different heights and improves the use effect of the equipment. The support stability of the main body of the Toupu centrifugal fan can be increased through the base, and the main body of the Toupu centrifugal fan can be reinforced by the reinforcement rod and the reinforcement frame, thereby improving the stability of the equipment during operation. By pulling the cross bar, the damping telescopic rod can be extended outward, and then the position of the cross bar can be adjusted. The clamp can be clamped from both sides of the base, which is conducive to improving the fixing effect. The cross bar can be reinforced by connecting the connecting plate with screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is an isometric view of the entire utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model a;

[0019] Figure 3 It is the overall structure schematic diagram b of the utility model;

[0020] Figure 4 This is an overall side view of the utility model;

[0021] In the figure: 1. Toupu type centrifugal fan body; 2. Ventilation duct; 3. Air outlet duct; 4. First support plate; 5. Rotating shaft; 6. Second support plate; 7. Limiting hole; 8. Telescopic pressing plate; 9. Limiting rod; 10. Bottom plate; 11. Pneumatic lifting rod; 12. First support block; 13. Base; 14. Reinforcement rod; 15. Reinforcement frame; 16. Damping telescopic rod; 17. Second support block; 18. Cross bar; 19. Clamp; 20. Connecting plate. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4As shown, this embodiment proposes a centrifugal fan of the type of through-type, including a through-type centrifugal fan body 1, a ventilation pipe 2 is sleeved on the ventilation port of the through-type centrifugal fan body 1, and an air outlet pipe 3 is provided at one end of the ventilation pipe 2 away from the through-type centrifugal fan body 1, first support plates 4 are installed on both sides of the through-type centrifugal fan body 1 through a damping rotating shaft, and a rotating shaft 5 is welded to the other end of the first support plate 4, a second support plate 6 is sleeved on the rotating shaft 5, and the other end of the second support plate 6 is connected to the outer wall of the air outlet pipe 3 through the damping rotating shaft, and a plurality of limiting holes 7 are provided at the connecting end of the second support plate 6 and the rotating shaft 5, The limiting holes 7 are evenly distributed on the outside of the rotating shaft 5 in a circular array, the rotating shaft 5 is provided with a telescopic pressing plate 8, and a plurality of limiting rods 9 are evenly welded on the telescopic pressing plate 8 in a circular array, the outer walls of both sides of the through-type centrifugal fan body 1 are welded with bottom plates 10, and the top end surface of the bottom plate 10 is screwed with a pneumatic lifting rod 11, and the telescopic end of the pneumatic lifting rod 11 is welded with a first support block 12, the outer wall of the second support plate 6 is fitted with the outer wall of the first support plate 4, the ventilation pipe 2 is a telescopic plastic pipe, the number of limiting holes 7 is equal to the number of limiting rods 9, and the size of the limiting holes 7 and the limiting rod 9 is the same, the first support block The bottom ends of 12 are both inclined downward, a base 13 is welded to the bottom end face of the through-pu centrifugal fan body 1, and a reinforcement rod 14 is welded to the outer wall of one end of the base 13, and a reinforcement frame 15 is welded to the other end of the reinforcement rod 14, and the reinforcement frame 15 is clamped on the outside of the through-pu centrifugal fan body 1, and the support stability of the through-pu centrifugal fan body 1 can be increased through the base 13. A pair of damping telescopic rods 16 are provided on both sides of the through-pu centrifugal fan body 1, and the telescopic ends of the damping telescopic rods 16 are welded with second support blocks 17, and a cross bar 18 is installed between two adjacent second support blocks 17 through a damping shaft By pulling the cross bar 18, the damping telescopic rod 16 can be extended outward, and then the position of the cross bar 18 can be adjusted. A clamping plate 19 is welded on one side of the cross bar 18, and a pair of connecting plates 20 are welded on the other side of the cross bar 18, and threaded holes are provided on the connecting plates 20. The clamping plates 19 can be used to clamp from both sides of the base 13, which is beneficial to improve the fixing effect. The bottom of the through-type centrifugal fan body 1 is in a step-shaped shape, and the limiting hole 7 and the limiting rod 9 are both circular. The reinforcement rod 14 is made of stainless steel, and the inner wall of the reinforcement frame 15 is in contact with the outer wall of the through-type centrifugal fan body 1, which is beneficial to improve the reinforcement effect.

[0024] In this embodiment, when in use, the first support block 12 is pushed upward by the pneumatic lifting rod 11, and the first support plate 4 can be lifted upward. By rotating the second support plate 6, the air outlet 3 can be extended outward, and by pressing the telescopic pressing plate 8, the limit rod 9 can be inserted into the limit hole 7, thereby achieving the fixation of the angle of the second support plate 6. The support stability of the through-type centrifugal fan body 1 can be increased by the base 13, and the through-type centrifugal fan body 1 can be reinforced by the reinforcement rod 14 and the reinforcement frame 15, thereby improving the stability of the equipment during operation. By pulling the cross bar 18, the damping telescopic rod 16 can be extended outward, and then the position of the cross bar 18 can be adjusted. The clamping plate 19 can be used to clamp from both sides of the base 13, which is beneficial to improve the fixing effect. The cross bar 18 can be reinforced by connecting the connecting plate 20 with screws.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifugal fan of the type of thru-bu type, comprising a centrifugal fan body (1), characterized in that: A ventilation pipe (2) is sleeved on the ventilation opening of the through-type centrifugal fan body (1), and an air outlet pipe (3) is provided at one end of the ventilation pipe (2) away from the through-type centrifugal fan body (1). First support plates (4) are installed on both sides of the through-type centrifugal fan body (1) via a damping rotating shaft, and a rotating shaft (5) is welded to the other end of the first support plate (4). A second support plate (6) is sleeved on the rotating shaft (5), and the other end of the second support plate (6) is connected to the outer wall of the air outlet pipe (3) via the damping rotating shaft. The second support plate (6) is connected to the rotating shaft. A plurality of limiting holes (7) are provided at the connection end of the moving shaft (5), and the limiting holes (7) are evenly distributed outside the rotating shaft (5) in a circular array. A telescopic pressing plate (8) is provided on the rotating shaft (5), and a plurality of limiting rods (9) are evenly welded on the telescopic pressing plate (8) in a circular array. Bottom plates (10) are welded to the outer walls of both sides of the main body (1) of the centrifugal fan, and a pneumatic lifting rod (11) is screwed to the top end surface of the bottom plate (10), and a first support block (12) is welded to the telescopic end of the pneumatic lifting rod (11).

2. A centrifugal fan according to claim 1, characterized in that: The outer wall of the second support plate (6) is in contact with the outer wall of the first support plate (4), and the ventilation pipe (2) is a telescopic plastic pipe.

3. A centrifugal fan according to claim 1, characterized in that: The number of the limiting holes (7) is equal to the number of the limiting rods (9), and the sizes of the limiting holes (7) and the limiting rods (9) are the same, and both ends of the bottom of the first support block (12) are inclined downward.

4. A centrifugal fan according to claim 1, characterized in that: A base (13) is welded to the bottom end surface of the through-type centrifugal fan body (1), and a reinforcing rod (14) is welded to the outer wall of one end of the base (13), and a reinforcing frame (15) is welded to the other end of the reinforcing rod (14), and the reinforcing frame (15) is clamped to the outside of the through-type centrifugal fan body (1).

5. A centrifugal fan according to claim 1, characterized in that: A pair of damping telescopic rods (16) are provided on both sides of the main body (1) of the centrifugal fan, and a second support block (17) is welded to the telescopic end of the damping telescopic rod (16), and a cross bar (18) is installed between two adjacent second support blocks (17) via a damping rotating shaft.

6. A centrifugal fan according to claim 5, characterized in that: A clamping plate (19) is welded to one side of the cross bar (18), and a pair of connecting plates (20) are welded to the other side of the cross bar (18), and threaded holes are provided on the connecting plates (20).

7. A centrifugal fan according to claim 1, characterized in that: The bottom of the centrifugal fan body (1) is in the shape of a step, and the limiting hole (7) and the limiting rod (9) are both in the shape of a circle.

8. A centrifugal fan according to claim 4, characterized in that: The reinforcement rod (14) is made of stainless steel, and the inner wall of the reinforcement frame (15) is in contact with the outer wall of the centrifugal fan body (1).

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