A centrifugal fan impeller with a pre-turbulent device to improve flow velocity

Abstract

A centrifugal fan impeller with a pre-turbulent flow device to improve flow velocity comprises a fixed seat, one side of the fixed seat is provided with a fixed groove, one side of the fixed seat is located at the inner wall of the fixed groove and is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a first toothed disc, one side of the first toothed disc is located at the inner wall of the fixed groove and is fixedly connected to a second toothed disc, one end of the rotating rod is located at the inner side of the first toothed disc and is fixedly connected to a slider, and one end of the slider is fixedly connected to a first spring. The present invention provides a rotating rod, a first bevel gear and a limit block. When it is necessary to install a fan blade, the fan blade is placed on the inner side of the fixed block. At this time, by rotating the rotating rod, the rotating rod drives the fixed block and the limit block to move inward through the slider, the connecting rod, the first bevel gear, the second bevel gear, the screw rod and the push rod, so that the limit block is stuck into the inner wall of the limit groove to effectively fix the fan blade.

Description

Technical Field

[0001] The invention relates to the technical field of fan impeller manufacturing, and in particular to a centrifugal fan impeller with a pre-placed turbulent flow device to improve flow velocity. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air intake of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and conveying of grains; inflation and propulsion of wind tunnel wind sources and hovercraft, etc.

[0003] However, in actual use, traditional centrifugal fan impellers are mostly connected by welding, which has a high manufacturing process difficulty. After long-term use, a large amount of dust and other impurities adhere to the impeller, affecting the performance and flow rate of the fan, and it is not easy to clean.

[0004] Therefore, it is necessary to invent a centrifugal fan impeller with a pre-turbulent device to improve the flow rate to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a centrifugal fan impeller with a pre-turbulent device to improve the flow rate. The fan blades are effectively fixed by arranging a rotating rod, a first bevel gear and a limit block. At this time, the rotating rod is pressed to move to one side so that the first toothed disc is in close contact with the second toothed disc, thereby fixing the rotating rod. At this time, by pressing the sliding rod, the sliding rod drives the second rack to disengage from the first rack. At this time, the fixing rod pops out under the action of the second spring to fix the rotating rod, thereby strengthening the fixation of the rotating rod and effectively preventing the rotating rod from loosening due to vibration when the fan blades rotate at high speed, thereby causing the fan blades to detach, so as to solve the above-mentioned deficiencies in the technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: A centrifugal fan impeller with a pre-turbulent device to improve flow velocity, comprising a fixed seat, a fixed groove is provided on one side of the fixed seat, a rotating rod is rotatably connected to the inner wall of the fixed groove on one side of the fixed seat, one end of the rotating rod is fixedly connected to a first toothed disc, a second toothed disc is fixedly connected to one side of the first toothed disc on the inner wall of the fixed groove, a sliding block is fixedly connected to one end of the rotating rod located on the inner side of the first toothed disc, one end of the sliding block is fixedly connected to a first spring, a connecting rod is fixedly connected to the outer wall of the sliding block, one end of the connecting rod is fixedly connected to a first bevel gear, one side of the first bevel gear is meshed with a second bevel gear, one end of the second bevel gear is fixedly connected to a screw, the outer wall of the screw rod is rotatably connected to a push rod, one end of the push rod is fixedly connected to a fixed block, one side of the fixed block is fixedly connected to a limiting block, one side of the limiting block is fixedly connected to a fan blade, and one side of the fan blade is provided with a limiting groove on the outer wall of the limiting block.

[0007] Preferably, a fixing rod is slidably connected to the inner wall of the fixing groove at one side of the fixing seat, and the number of the fixing rods is set to two.

[0008] Preferably, one side of the fixing rod is fixedly connected to a first rack, and one side of the first rack is fixedly connected to a second spring.

[0009] Preferably, one end of one side of the fixing rod located at the fixing seat is slidably connected with a sliding rod, and the number of the sliding rods is set to two.

[0010] Preferably, one end of the sliding rod is fixedly connected to a second rack.

[0011] Preferably, one end of the second rack is fixedly connected to a third spring.

[0012] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0013] By setting a rotating rod, a first bevel gear and a limit block, when the fan blades need to be installed, the fan blades are placed on the inner side of the fixed block. At this time, by rotating the rotating rod, the rotating rod drives the fixed block and the limit block to move inward through the slider, the connecting rod, the first bevel gear, the second bevel gear, the screw rod, and the push rod, so that the limit block is stuck in the inner wall of the limit groove, and the fan blades are effectively fixed. At this time, the rotating rod is pressed to move to one side so that the first toothed disc is in close contact with the second toothed disc, thereby fixing the rotating rod. At this time, by pressing the slide rod, the slide rod drives the second rack to disengage from the first rack. At this time, the fixed rod pops out under the action of the second spring to fix the rotating rod, thereby strengthening the fixation of the rotating rod and effectively preventing the rotating rod from loosening due to vibration when the fan blades rotate at high speed, thereby causing the fan blades to detach. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 is a cross-sectional view of the present invention;

[0017] Figure 3 It is a schematic diagram of the connection of the first bevel gear of the present invention;

[0018] Figure 4 For the present invention Figure 1 A magnified image of point A;

[0019] Figure 5 For the present invention Figure 2 A magnified view of point B;

[0020] Figure 6 For the present invention Figure 3 Enlarged view of point C.

[0021] Description of reference numerals:

[0022] 1. Fixed seat; 2. Fixed slot; 3. Rotating rod; 4. First gear disc; 5. Second gear disc; 6. Sliding block; 7. First spring; 8. Connecting rod; 9. First bevel gear; 10. Second bevel gear; 11. Screw rod; 12. Push rod; 13. Fixed block; 14. Limit block; 15. Fan blade; 16. Limit slot; 17. Fixed rod; 18. First rack; 19. Second spring; 20. Sliding rod; 21. Second rack; 22. Third spring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The present invention provides Figure 1-6The centrifugal fan impeller with a pre-turbulent flow device to improve the flow rate shown in the figure comprises a fixed seat 1, a fixed groove 2 is provided on one side of the fixed seat 1, a rotating rod 3 is rotatably connected to the inner wall of the fixed groove 2 on one side of the fixed seat 1, a first toothed disc 4 is fixedly connected to one end of the rotating rod 3, a second toothed disc 5 is fixedly connected to one side of the first toothed disc 4 on the inner wall of the fixed groove 2, a slider 6 is fixedly connected to one end of the rotating rod 3 located on the inner side of the first toothed disc 4, a first spring 7 is fixedly connected to one end of the slider 6, a connecting rod 8 is fixedly connected to the outer wall of the slider 6, a first bevel gear 9 is fixedly connected to one end of the connecting rod 8, a second bevel gear 10 is meshed with one side of the first bevel gear 9, a screw 11 is fixedly connected to one end of the second bevel gear 10, and the screw The outer wall of the rod 11 is rotatably connected to a push rod 12, one end of the push rod 12 is fixedly connected to a fixed block 13, one side of the fixed block 13 is fixedly connected to a limiting block 14, one side of the limiting block 14 is fixedly connected to a fan blade 15, and one side of the fan blade 15 is located on the outer wall of the limiting block 14 and is provided with a limiting groove 16. Through the action of the rotating rod 3, the first bevel gear 9 and the limiting block 14, when the fan blade 15 needs to be installed, the fan blade 15 is placed on the inner side of the fixed block 13. At this time, by rotating the rotating rod 3, the rotating rod 3 drives the fixed block 13 and the limiting block 14 to move inward through the slider 6, the connecting rod 8, the first bevel gear 9, the second bevel gear 10, the screw 11, and the push rod 12, so that the limiting block 14 is stuck in the inner wall of the limiting groove 16, and the fan blade 15 is effectively fixed.

[0025] Furthermore, in the above technical solution, a fixing rod 17 is slidably connected to the inner wall of the fixing groove 2 at one side of the fixing seat 1 , and the number of the fixing rods 17 is set to two, which is convenient for installing and fixing the position of the fixing rods 17 .

[0026] Furthermore, in the above technical solution, one side of the fixing rod 17 is fixedly connected to a first rack 18 , one side of the first rack 18 is fixedly connected to a second spring 19 , and the first rack 18 is meshed with the second rack 21 to effectively fix the fixing rod 17 .

[0027] like Figure 1-6 As shown: one end of the fixing rod 17 located at the fixing seat 1 is slidably connected with a sliding rod 20, and the number of the sliding rod 20 is set to two, so as to facilitate the fixing of the position of the sliding rod 20.

[0028] Furthermore, in the above technical solution, one end of the sliding rod 20 is fixedly connected to the second rack 21 to facilitate fixing the position of the second rack 21 .

[0029] Furthermore, in the above technical solution, one end of the second rack 21 is fixedly connected to the third spring 22 to facilitate fixing the position of the third spring 22 .

[0030] How this utility works:

[0031] Refer to the instruction manual Figure 1-6 When the fan blade 15 needs to be installed, the fan blade 15 is placed on the inner side of the fixed block 13. At this time, by rotating the rotating rod 3, the rotating rod 3 drives the fixed block 13 and the limit block 14 to move inward through the slider 6, the connecting rod 8, the first bevel gear 9, the second bevel gear 10, the screw rod 11, and the push rod 12, so that the limit block 14 is stuck in the inner wall of the limit groove 16, and the fan blade 15 is effectively fixed. At this time, the rotating rod 3 is pressed to move to one side so that the first toothed disc 4 and the second toothed disc 5 are in close contact, and the rotating rod 3 is fixed. At this time, by pressing the slide bar 20, the slide bar 20 drives the second rack 21 to disengage from the first rack 18. At this time, the fixed rod 17 pops out under the action of the second spring 19 to fix the rotating rod 3, thereby strengthening the fixation of the rotating rod 3 and preventing the rotating rod 3 from loosening due to vibration when the fan blade 15 rotates at a high speed, thereby causing the fan blade 15 to disengage.

[0032] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A centrifugal fan impeller with a pre-turbulent flow device to improve flow velocity, comprising a fixed seat (1), characterized in that: A fixing groove (2) is provided on one side of the fixing seat (1); a rotating rod (3) is rotatably connected to one side of the fixing seat (1) located on the inner wall of the fixing groove (2); one end of the rotating rod (3) is fixedly connected to a first toothed disc (4); one side of the first toothed disc (4) is fixedly connected to a second toothed disc (5) located on the inner wall of the fixing groove (2); one end of the rotating rod (3) is located on the inner side of the first toothed disc (4) and is fixedly connected to a slider (6); one end of the slider (6) is fixedly connected to a first spring (7); an outer wall of the slider (6) is fixedly connected to a connecting rod (8); one end of the connecting rod (8) is fixedly connected to a first bevel gear (9); one side of the first bevel gear (9) is meshed with a second bevel gear (10); one end of the second bevel gear (10) is fixedly connected to a screw rod (11); the outer wall of the screw rod (11) is rotatably connected to a push rod (12); one end of the push rod (12) is fixedly connected to a fixing block (13); the fixing block One side of the fixed seat (13) is fixedly connected to a limit block (14), one side of the limit block (14) is fixedly connected to a fan blade (15), one side of the fan blade (15) is provided with a limit groove (16) on the outer wall of the limit block (14), and six second bevel gears (10), screw rods (11) (11) and push rods (12) are provided respectively; the inner wall of the fixed groove (2) is slidably connected to a fixed rod (17) on one side of the fixed seat (1), and the number of the fixed rods (17) is set to two; one side of the fixed rod (17) is fixedly connected to a first rack (18), and one side of the first rack (18) is fixedly connected to a second spring (19); one side of the fixed rod (17) is slidably connected to an end of the fixed seat (1), and the number of the slide rods (20) is set to two; one end of the slide rod (20) is fixedly connected to a second rack (21); one end of the second rack (21) is fixedly connected to a third spring (22); When in use: by arranging the rotating rod (3), the first bevel gear (9) and the limiting block (14), when the fan blade (15) needs to be installed, the fan blade (15) is placed on the inner side of the fixed block (13), and then the rotating rod (3) is rotated, and the rotating rod (3) drives the fixed block (13) and the limiting block (14) to move inward through the slider (6), the connecting rod (8), the first bevel gear (9), the second bevel gear (10), the screw rod (11) and the push rod (12), so that the limiting block (14) is stuck in the inner wall of the limiting groove (16), and the fan blade (15) is moved. The rotating rod (3) is effectively fixed. At this time, the rotating rod (3) is pressed to move to one side so that the first toothed disc (4) and the second toothed disc (5) are in close contact, thereby fixing the rotating rod (3). At this time, by pressing the sliding rod (20), the sliding rod (20) drives the second rack (21) to disengage from the first rack (18). At this time, the fixing rod (17) pops out under the action of the second spring (19) to fix the rotating rod (3), thereby strengthening the fixation of the rotating rod (3) and preventing the rotating rod (3) from loosening due to vibration when the fan blades (15) rotate at high speed, thereby causing the fan blades (15) to disengage.

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