Short blade type diffuser

Abstract

The utility model discloses a short blade type diffuser, and relates to the technical field of diffusers. The device comprises a diffusion plate, a rotating mechanism is arranged at the upper end of the diffusion plate, the rotating mechanism is used for enabling the short blade type diffuser to rotate better, a connecting mechanism matched with the rotating mechanism is fixedly arranged at the upper end of the rotating mechanism, and the connecting mechanism is used for enabling the short blade type diffuser and the driving source to be stably connected. The connecting mechanism comprises a limiting cylinder, a limiting rod is arranged in the limiting cylinder, four limiting plates are fixedly arranged on the outer surface of the limiting rod, four limiting clamping grooves matched with the four limiting plates for use are formed in the outer surface of the limiting cylinder, and a connecting rod is fixedly arranged at the upper end of the limiting rod. By means of the connecting mechanism, the short-blade type diffuser can be well connected in the using process, and by means of the rotating mechanism, the short-blade type diffuser can well rotate in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of diffusers, in particular to a short-blade diffuser. Background Art

[0002] The vane diffuser is composed of a certain number of blades evenly distributed along the circumference in the parallel and smooth wall of the vaneless diffuser. When the gas medium flows in the vaneless diffuser, the direction angle a remains basically unchanged, but in the vane diffuser, the gas must flow in the direction of the blades, so the flow condition is better, the flow loss is small, and the efficiency is high. When operating under the design working condition, the efficiency is 3% to 5% higher than that of the vaneless diffuser. Therefore, the vane diffuser is widely used in engineering.

[0003] However, there are still the following problems in the prior art:

[0004] First, when the short-blade diffusers of the prior art are used, most of the short-blade diffusers cannot be well connected during use, which causes the short-blade diffusers to become loose when rotating.

[0005] Secondly, when the short-blade diffusers in the prior art are in use, most of the short-blade diffusers cannot rotate well, resulting in poor diffusion effect of the short-blade diffusers on the airflow.

[0006] In view of the above problems, the inventor proposes a short-blade diffuser to solve the above problems. Utility Model Content

[0007] In order to solve the problem that most short-blade diffusers cannot be well connected and cannot be well rotated when in use; the purpose of the utility model is to provide a short-blade diffuser.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions: a short-blade diffuser, including a diffuser plate, a rotating mechanism is provided at the upper end of the diffuser plate, the rotating mechanism is used to allow the short-blade diffuser to rotate better, a connecting mechanism is fixedly provided at the upper end of the rotating mechanism for use in conjunction with it, the connecting mechanism is used to allow a stable connection between the short-blade diffuser and a driving source, the connecting mechanism includes a limiting cylinder, a limiting rod is provided inside the limiting cylinder, four limiting plates are fixedly provided on the outer surface of the limiting rod, four limiting slots are provided on the outer surface of the limiting cylinder for use in conjunction with the four limiting plates, A connecting rod is fixedly provided at the upper end of the limit rod, and a connecting plate is fixedly provided at the upper end of the connecting rod. A limiting groove is provided at the upper end of the limit cylinder, and the inner surface of the limiting groove is slidably fitted with the outer surface of the limit rod. A plurality of guide plates are fixedly provided at the upper end of the diffuser plate, and a plurality of guide grooves for use with the plurality of guide plates are provided at the upper end of the diffuser plate. A connecting port is fixedly provided at the upper end of the connecting plate, and a plurality of connecting bolts are threadedly inserted at the lower end of the connecting plate. Four limiting bolts are provided on the outer surface of the limit cylinder, and four limiting screw grooves for use with the four limiting bolts are provided on the outer surfaces of the limit cylinder and the limit rod.

[0009] Preferably, the rotating mechanism includes a rotating plate, an inner roller is fixedly provided on the upper end of the rotating plate, an outer roller is rotatably provided on the outer surface of the inner roller, grooves are provided on the outer surface of the inner roller and the inner surface of the outer roller, a plurality of balls are slidably provided on the inner surfaces of the two grooves, a rotating frame is fixedly provided on the outer surface of the outer roller, four fixed plates are fixedly provided on the upper end of the rotating frame, a fixing groove is provided on one side of the four fixed plates, four rotating bolts are threadedly inserted on the lower end of the rotating plate, and four rotating screw grooves for use with the four rotating bolts are provided on the lower ends of the rotating plate and the diffuser plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model uses a connecting mechanism to ensure that the short-blade diffuser can be stably connected to the driving source when in use, and is also convenient to disassemble when replaced, so that the short-blade diffuser can be well connected when in use;

[0012] 2. The utility model uses a rotating mechanism to limit the short-blade diffuser while ensuring smooth rotation when the short-blade diffuser is in use, thereby reducing damage caused by rotation scratches, thereby achieving good rotation of the short-blade diffuser when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the connection mechanism of the utility model.

[0016] Figure 3 It is a schematic diagram of the rotating mechanism of the utility model.

[0017] In the figure: 1. Diffuser plate; 2. Connecting mechanism; 3. Rotating mechanism; 4. Guide plate; 5. Guide groove; 20. Limiting cylinder; 21. Limiting slot; 22. Limiting groove; 23. Limiting plate; 24. Limiting rod; 25. Connecting bolt; 26. Connecting port; 27. Connecting plate; 28. Connecting rod; 29. ​​Limiting bolt; 201. Limiting screw groove; 30. Rotating plate; 31. Fixed plate; 32. Fixed groove; 33. Outer roller; 34. Groove; 35. Rotating frame; 36. Inner roller; 37. Ball; 38. Rotating bolt; 39. Rotating screw groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in 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 in 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.

[0019] Embodiment 1: Figure 1-2 As shown, the utility model provides a short-blade diffuser, including a diffuser plate 1, a rotating mechanism 3 is provided at the upper end of the diffuser plate 1, a connecting mechanism 2 for matching is fixedly provided at the upper end of the rotating mechanism 3, the connecting mechanism 2 includes a limiting cylinder 20, a limiting rod 24 is provided inside the limiting cylinder 20, four limiting plates 23 are fixedly provided on the outer surface of the limiting rod 24, four limiting slots 21 for matching with the four limiting plates 23 are opened on the outer surface of the limiting cylinder 20, a connecting rod 28 is fixedly provided at the upper end of the limiting rod 24, and a connecting plate 27 is fixedly provided at the upper end of the connecting rod 28.

[0020] Through the connecting mechanism 2, when the short-blade diffuser needs to be connected, the limit rod 24 is inserted into the limit groove 22 on the limit cylinder 20, and the limit plate 23 can be clamped into the limit groove 21 under the drive of the limit rod 24. Then, the limit cylinder 20 and the limit rod 24 can be fixed by the limit bolt 29 and the limit screw groove 201, and the connecting plate 27 on the connecting rod 28 can be connected and fixed to the connection point of the driving source through the connecting bolt 25 and the connecting port 26, so that the diffuser plate 1 can be stably connected to the driving source, thereby achieving the purpose of the short-blade diffuser being able to be well connected when in use.

[0021] A limiting groove 22 is provided at the upper end of the limiting cylinder 20, and the inner surface of the limiting groove 22 is slidably fitted with the outer surface of the limiting rod 24, a plurality of guide plates 4 are fixedly provided at the upper end of the diffuser plate 1, a plurality of guide grooves 5 used in conjunction with the plurality of guide plates 4 are provided at the upper end of the diffuser plate 1, a connecting port 26 is fixedly provided at the upper end of the connecting plate 27, a plurality of connecting bolts 25 are threadedly inserted at the lower end of the connecting plate 27, four limiting bolts 29 are provided on the outer surface of the limiting cylinder 20, and four limiting screw grooves 201 used in conjunction with the four limiting bolts 29 are provided on the outer surfaces of the limiting cylinder 20 and the limiting rod 24.

[0022] The limit cylinder 20 can slide on the outer surface of the limit rod 24 through the limit groove 22. The diffuser plate 1 can improve the effect of the short-blade diffuser during diffusion through the guide plate 4 and the guide groove 5. The connection of the driving source can be connected through the connecting port 26 and can be fixed by the connecting bolt 25. The limit rod 24 and the limit cylinder 20 are fixed by rotating the limit bolt 29 in the limit screw groove 201.

[0023] Embodiment 2: Figure 3 As shown, the rotating mechanism 3 includes a rotating plate 30, an inner roller 36 is fixedly provided at the upper end of the rotating plate 30, an outer roller 33 is rotatably provided on the outer surface of the inner roller 36, grooves 34 are provided on the outer surface of the inner roller 36 and the inner surface of the outer roller 33, a plurality of balls 37 are slidably provided on the inner surfaces of the two grooves 34, and a rotating frame 35 is fixedly provided on the outer surface of the outer roller 33.

[0024] When the driving source drives the short-blade diffuser to rotate through the rotating mechanism 3, the inner roller 36 will be driven to rotate on the inner surface of the outer roller 33, and the wear between the two can be reduced through the ball 37 in the groove 34. The rotating frame 35 can support and limit the outer roller 33. When driven by the driving source, the inner roller 36 can drive the diffuser plate 1 on one side of the rotating plate 30 to rotate, thereby achieving the purpose of the short-blade diffuser being able to rotate well when in use.

[0025] Four fixing plates 31 are fixed to the upper end of the rotating frame 35, and a fixing groove 32 is opened on one side of the four fixing plates 31. Four rotating bolts 38 are threadedly inserted at the lower end of the rotating plate 30. The lower ends of the rotating plate 30 and the diffuser plate 1 are opened with four rotating screw grooves 39 used in conjunction with the four rotating bolts 38.

[0026] The rotating frame 35 can be conveniently fixed by means of the fixing plate 31 and the fixing groove 32 , and the rotating plate 30 and the diffuser plate 1 can be fixed by means of the rotating bolts 38 and the rotating screw grooves 39 .

[0027] Working principle: Through the connecting mechanism 2, when the short-blade diffuser needs to be connected, the limit rod 24 is inserted into the limit groove 22 on the limit cylinder 20, and the limit plate 23 can be clamped into the limit groove 21 under the drive of the limit rod 24. Then, the limit cylinder 20 and the limit rod 24 can be fixed by the limit bolt 29 and the limit screw groove 201, and the connecting plate 27 on the connecting rod 28 can be connected and fixed to the connection point of the driving source through the connecting bolt 25 and the connecting port 26, so that the diffuser plate 1 can be stably connected to the driving source, thereby achieving the purpose of the short-blade diffuser being able to be well connected when in use.

[0028] The diffuser plate 1 can improve the diffusion effect of the short-blade diffuser through the guide plate 4 and the guide groove 5. The connection of the driving source can be connected through the connecting port 26 and can be fixed by the connecting bolt 25. The limit rod 24 and the limit cylinder 20 are fixed by rotating in the limit screw groove 201 through the limit bolt 29.

[0029] When the driving source drives the short-blade diffuser to rotate through the rotating mechanism 3, the inner roller 36 will be driven to rotate on the inner surface of the outer roller 33, and the wear between the two can be reduced through the ball 37 in the groove 34. The rotating frame 35 can support and limit the outer roller 33. When driven by the driving source, the inner roller 36 can drive the diffuser plate 1 on one side of the rotating plate 30 to rotate, thereby achieving the purpose of the short-blade diffuser being able to rotate well when in use.

[0030] The rotating frame 35 can be conveniently fixed by means of the fixing plate 31 and the fixing groove 32 , and the rotating plate 30 and the diffuser plate 1 can be fixed by means of the rotating bolts 38 and the rotating screw grooves 39 .

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A short blade diffuser, comprising a diffuser plate (1), characterized in that: The upper end of the diffuser plate (1) is provided with a rotating mechanism (3), and the upper end of the rotating mechanism (3) is fixedly provided with a connecting mechanism (2) for use with it; The connection mechanism (2) comprises a limiting cylinder (20), a limiting rod (24) is arranged inside the limiting cylinder (20), four limiting plates (23) are fixedly arranged on the outer surface of the limiting rod (24), four limiting slots (21) for use with the four limiting plates (23) are opened on the outer surface of the limiting cylinder (20), a connecting rod (28) is fixedly arranged on the upper end of the limiting rod (24), and a connecting plate (27) is fixedly arranged on the upper end of the connecting rod (28).

2. A short blade diffuser according to claim 1, characterized in that: The rotating mechanism (3) comprises a rotating plate (30), an inner roller (36) is fixedly provided at the upper end of the rotating plate (30), an outer roller (33) is rotatably provided on the outer surface of the inner roller (36), a groove (34) is provided on the outer surface of the inner roller (36) and the inner surface of the outer roller (33), a plurality of balls (37) are slidably provided on the inner surfaces of the two grooves (34), and a rotating frame (35) is fixedly provided on the outer surface of the outer roller (33).

3. The short blade diffuser according to claim 1, characterized in that: The upper end of the limiting cylinder (20) is provided with a limiting groove (22), and the inner surface of the limiting groove (22) is slidably fitted with the outer surface of the limiting rod (24).

4. The short blade diffuser according to claim 1, characterized in that: A plurality of guide plates (4) are fixedly provided on the upper end of the pressure diffuser plate (1), and a plurality of guide grooves (5) for use in conjunction with the plurality of guide plates (4) are provided on the upper end of the pressure diffuser plate (1).

5. The short blade diffuser according to claim 1, characterized in that: A connection port (26) is fixedly provided at the upper end of the connection plate (27), and a plurality of connection bolts (25) are threadedly inserted at the lower end of the connection plate (27).

6. The short blade diffuser according to claim 1, characterized in that: The outer surface of the limiting cylinder (20) is provided with four limiting bolts (29), and the outer surfaces of the limiting cylinder (20) and the limiting rod (24) are both provided with four limiting screw grooves (201) used in conjunction with the four limiting bolts (29).

7. The short blade diffuser according to claim 2, characterized in that: Four fixing plates (31) are fixedly provided at the upper end of the rotating frame (35), and a fixing groove (32) is provided on one side of the four fixing plates (31).

8. The short blade diffuser according to claim 2, characterized in that: Four rotating bolts (38) are threadedly inserted at the lower end of the rotating plate (30), and four rotating screw grooves (39) for use with the four rotating bolts (38) are formed at the lower ends of the rotating plate (30) and the diffuser plate (1).

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