Guide vane of axial flow fan

Abstract

The utility model relates to the technical field of axial flow fans, in particular to a guide vane of an axial flow fan, which comprises a main body, a mounting groove is arranged on one side of the main body, a fixing column is arranged in the mounting groove, a mounting column is arranged in the mounting groove, a fixing groove is arranged on one side of the mounting column, the fixing column is arranged in the fixing groove, and the fixing column is arranged in the fixing groove. A clamping groove is formed in one side of the fixing groove, a fixing mechanism is arranged in the fixing column, positioning grooves are formed in the periphery of the body, blades are arranged in the positioning grooves, and one ends of the blades are arranged in the positioning grooves. By means of the handle, the screw rod, the movable block, the limiting column, the limiting rod, the clamping block, the limiting groove and the first spring, the stability of device installation is improved, the device is convenient to disassemble, so that the device is stored, by means of the limiting block, the limiting groove, the button, the fixing rod and the second spring, the blades are convenient to install or disassemble, and the use convenience of the blades is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to a guide blade of an axial flow fan. Background Art

[0002] Axial flow fans are generally composed of a casing, a motor, an impeller and guide vanes. The guide vanes are usually located at the rear of the impeller and are radially distributed along the circumference of the impeller hub. During the use of the axial flow fan, the function of the guide vanes is to rotate the deflected airflow generated by the rotation of the impeller back to the axial direction to achieve the purpose of improving the working efficiency of the axial flow fan.

[0003] In a guide vane of an axial flow fan and an axial flow fan with the public specification of Chinese utility model patent application CN212360302U, although it has the advantages of utilizing splitter blades to weaken the generation of secondary flow and reduce the accumulation of airflow at the angle between the trailing edge of the blade and the hub wall, and ultimately achieves the purpose of reducing the total pressure loss of the guide vane, it does not solve the problems of the device being not installed firmly enough and being inconvenient to disassemble; it is inconvenient to install or disassemble the blades, and the blades are not convenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a guide blade for an axial flow fan to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A guide blade of an axial flow fan comprises a main body, a mounting groove is provided on one side of the main body, a fixing column is arranged inside the mounting groove, a mounting column is arranged inside the mounting groove, a fixing groove is provided on one side of the mounting column, the fixing column is arranged inside the fixing groove, a clamping groove is provided on one side of the fixing groove, a fixing mechanism is arranged inside the fixing column, positioning grooves are provided around the main body, a blade is arranged inside the positioning groove, one end of the blade is arranged inside the positioning groove, limiting grooves are provided on both sides of the positioning groove, and a limiting mechanism is arranged inside the blade.

[0007] Preferably, the fixing mechanism includes a cavity, a screw, a movable block, a limit column, a clamping block, a limit rod and a first spring, a cavity is opened inside the fixing column, a screw is movably arranged inside the cavity through a bearing, the threads at both ends of the screw are arranged in opposite directions, movable blocks are sleeved at both ends of the screw, a limit column is fixedly arranged through the movable block inside the cavity, a clamping block is arranged on one side of the cavity, a limit rod is fixedly arranged through the clamping block inside the cavity, one end of the limit rod is sleeved with a first spring, and one end of the clamping block passes through the fixing column and is arranged inside the clamping slot.

[0008] Preferably, the limiting mechanism includes an installation cavity, a limiting block, a fixing rod and a second spring. An installation cavity is opened inside one end of the blade, limiting blocks are arranged on both sides of the installation cavity, a plurality of fixing rods are fixedly arranged inside the installation cavity through the limiting blocks, a second spring is arranged on the outer layer of the fixing rod, and one end of the limiting block passes through the blade and is arranged inside the limiting groove.

[0009] Preferably, a button is fixedly provided at one end of the limit block, and one end of the button is provided on both sides of the blade.

[0010] Preferably, one end of the screw rod passes through the main body and is arranged on one side of the main body, and a handle is fixedly arranged on one end of the screw rod.

[0011] Preferably, one side of the movable block is arranged in a trapezoidal shape, and one side of the locking block is arranged in a trapezoidal shape.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A guide blade of an axial flow fan, the mounting column is located on the axial flow fan, the main body is installed on one side of the mounting column, so that one end of the mounting column is located inside the mounting groove, the fixed column is located inside the fixed groove, and the handle is turned, and the threads at both ends of the screw are opposite, so that when the screw rotates, the movable blocks on both sides move in different directions, and the movable block is passed through the limit column so that the movable block can only slide along the direction of the limit column, and the clamping block is passed through the limit rod so that the clamping block can only slide along the direction of the limit rod. The screw rotates to drive the movable block to move, and the trapezoidal setting of the movable block and the clamping block makes it easy to push the clamping block when the movable block moves. The block moves, so that the card block is inserted into the card slot, and the fixing column is fixed, so that the main body is fixed to one end of the installation column, so that the device is installed on the axial flow fan. When the device needs to be disassembled or stored, the handle is turned to drive the movable block to move through the screw rod, and the card block is pushed by the first spring, so that the card block moves out of the card slot, and the fixation of the device is cancelled, so that the device is disassembled. Through the above device, through the handle, the screw rod, the movable block, the limiting column, the limiting rod, the card block, the limiting slot and the first spring, the stability of the device installation is improved, and the device is easy to disassemble, so as to store the device.

[0014] 2. The guide blade of the axial flow fan passes through the limit block through the fixed rod, so that the limit block can only slide along the direction of the fixed rod. Pressing the button makes the limit block move inward, so that the limit block moves out of the limit groove, cancels the limit on the blade, takes out the blade, replaces the blade, and inserts the limit block into the limit groove. The limit block is pushed by the second spring so that the limit block is firmly in the limit groove to limit the blade. Through the above-mentioned device, through the limit block, the limit groove, the button, the fixed rod and the second spring, the blade is easy to install or disassemble, thereby improving the convenience of using the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front structural sectional view of the utility model;

[0017] Figure 3 It is a side structural sectional view of the utility model;

[0018] Figure 4 For this utility model Figure 2 A magnified schematic diagram of center A.

[0019] In the figure: 1. main body; 2. mounting groove; 3. fixing column; 4. mounting column; 5. fixing groove; 6. clamping groove; 7. positioning groove; 8. blade; 9. limiting groove; 10. cavity; 11. screw rod; 12. movable block; 13. limiting column; 14. clamping block; 15. limiting rod; 16. first spring; 17. mounting cavity; 18. limiting block; 19. fixing rod; 20. second spring; 21. button; 22. handle. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0022] A guide blade of an axial flow fan comprises a main body 1, a mounting groove 2 is provided on one side of the main body 1, a fixing column 3 is arranged inside the mounting groove 2, a mounting column 4 is arranged inside the mounting groove 2, a fixing groove 5 is provided on one side of the mounting column 4, the fixing column 3 is arranged inside the fixing groove 5, a clamping groove 6 is provided on one side of the fixing groove 5, a fixing mechanism is arranged inside the fixing column 3, positioning grooves 7 are provided around the main body 1, a blade 8 is arranged inside the positioning groove 7, one end of the blade 8 is arranged inside the positioning groove 7, limiting grooves 9 are provided on both sides of the positioning groove 7, and a limiting mechanism is arranged inside the blade 8. Through the above device, the mounting column 4 is located on the axial flow fan, the main body 1 is installed on one side of the mounting column 4, so that one end of the mounting column 4 is located inside the mounting groove 2, the fixing column 3 is located inside the fixing groove 5, the fixing column 3 is fixed by the fixing mechanism, so that the main body 1 is fixed to one end of the mounting column 4, so that the device is installed on the axial flow fan, and the blade 8 is limited by the limiting mechanism.

[0023] In this embodiment, preferably, the fixing mechanism includes a cavity 10, a screw 11, a movable block 12, a limiting column 13, a block 14, a limiting rod 15 and a first spring 16. The fixed column 3 is provided with a cavity 10, and a screw 11 is movably arranged inside the cavity 10 through a bearing. The threads at both ends of the screw 11 are arranged oppositely, and movable blocks 12 are sleeved at both ends of the screw 11. A limiting column 13 is fixedly arranged through the movable block 12 inside the cavity 10, a block 14 is arranged on one side of the cavity 10, and a limiting rod 15 is fixedly arranged through the block 14 inside the cavity 10. One end of the limiting rod 15 is sleeved with a first spring 16, and one end of the block 14 passes through the fixed column 3 and is arranged inside the card slot 6. Through the above device, the threads at both ends of the screw 11 are opposite, so that when the screw 11 rotates, the movable The movable block 12 moves in different directions, and the limit column 13 passes through the movable block 12, so that the movable block 12 can only slide along the direction of the limit column 13, and the limit rod 15 passes through the block 14, so that the block 14 can only slide along the direction of the limit rod 15. The screw 11 rotates to drive the movable block 12 to move, so that the movable block 12 pushes the block 14 to move, so that the block 14 is inserted into the slot 6, and the fixed column 3 is fixed, so that the main body 1 is fixed to one end of the installation column 4, so that the device is installed on the axial flow fan. When the device needs to be disassembled and stored, the handle 22 is turned to drive the movable block 12 to move through the screw 11, and the block 14 is pushed by the first spring 16, so that the block 14 moves out of the slot 6, cancels the fixation of the device, and thus the device is disassembled.

[0024] In this embodiment, preferably, the limiting mechanism includes an installation cavity 17, a limiting block 18, a fixing rod 19 and a second spring 20. An installation cavity 17 is opened inside one end of the blade 8, and limiting blocks 18 are arranged on both sides of the installation cavity 17. A plurality of fixing rods 19 are fixedly arranged through the limiting block 18 inside the installation cavity 17, and the outer layer of the fixing rod 19 is sleeved with a second spring 20. One end of the limiting block 18 passes through the blade 8 and is arranged inside the limiting groove 9. Through the above-mentioned device, the fixing rod 19 passes through the limiting block 18, so that the limiting block 18 can only slide along the direction of the fixing rod 19, so that the limiting block 18 moves inward, so that the limiting block 18 moves out of the limiting groove 9, cancels the limitation of the blade 8, takes out the blade 8, replaces the blade 8, and inserts the limiting block 18 into the limiting groove 9. The limiting block 18 is pushed by the second spring 20, so that the limiting block 18 is firmly fixed inside the limiting groove 9 to limit the blade 8.

[0025] In this embodiment, preferably, a button 21 is fixedly provided at one end of the limit block 18 , and one end of the button 21 is arranged on both sides of the blade 8 . Through the above device, the limit block 18 can be easily moved through the button 21 .

[0026] In this embodiment, preferably, one end of the screw rod 11 passes through the main body 1 and is arranged on one side of the main body 1 , and a handle 22 is fixedly provided at one end of the screw rod 11 . Through the above device, the screw rod 11 can be easily rotated through the handle 22 .

[0027] In this embodiment, preferably, one side of the movable block 12 is set in a trapezoidal shape, and one side of the clamping block 14 is set in a trapezoidal shape. Through the above device, it is easy to push the clamping block 14 to move when the movable block 12 moves.

[0028] When the guide blade of an axial flow fan of the present embodiment is in use, the mounting column 4 is located on the axial flow fan, and the main body 1 is installed on one side of the mounting column 4 so that one end of the mounting column 4 is located inside the mounting groove 2, and the fixing column 3 is located inside the fixing groove 5. The handle 22 is turned, and the threads at both ends of the screw rod 11 are opposite, so that when the screw rod 11 rotates, the movable blocks 12 on both sides move in different directions, and the movable blocks 12 are passed through the limiting column 13 so that the movable blocks 12 can only slide along the direction of the limiting column 13, and the clamping block 14 is passed through the limiting rod 15 so that the clamping block 14 can only slide along the direction of the limiting rod 15. The screw 11 rotates to drive the movable block 12 to move, and the trapezoidal arrangement of the movable block 12 and the clamping block 14 makes it possible for the movable block 12 to move when it moves. It is convenient to push the block 14 to move, so that the block 14 is inserted into the slot 6, and the fixing column 3 is fixed, so that the main body 1 is fixed to one end of the installation column 4, so that the device is installed on the axial flow fan. When the device needs to be disassembled or stored, the handle 22 is turned, and the movable block 12 is driven to move by the screw rod 11, and the block 14 is pushed by the first spring 16, so that the block 14 moves out of the slot 6, and the fixation of the device is cancelled, so that the device is disassembled. Through the above-mentioned device, through the handle 22, the screw rod 11, the movable block 12, the limiting column 13, the limiting rod 15, the block 14, the limiting slot 9 and the first spring 16, the stability of the device installation is improved, and the device is convenient to disassemble, so as to store the device.

[0029] Since a single blade 8 may be damaged during the use of the blade 8, it is necessary to replace the single blade 8. At this time, the fixing rod 19 passes through the limit block 18, so that the limit block 18 can only slide along the direction of the fixing rod 19, and the button 21 is pressed to move the limit block 18 inward, so that the limit block 18 moves out of the limit groove 9, and the limitation of the blade 8 is cancelled. The blade 8 is taken out and replaced, so that the limit block 18 is inserted into the limit groove 9, and the limit block 18 is pushed by the second spring 20, so that the limit block 18 is firmly fixed in the limit groove 9 to limit the blade 8. Through the above-mentioned device, through the limit block 18, the limit groove 9, the button 21, the fixing rod 19 and the second spring 20, it is convenient to install or disassemble the blade 8, thereby improving the convenience of using the blade 8.

[0030] The above shows and describes the basic principle, main features and 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.

Claims

1. A guide blade for an axial flow fan, comprising a main body (1), characterized in that: The main body (1) is provided with a mounting groove (2) on one side, a fixing column (3) is arranged inside the mounting groove (2), a mounting column (4) is arranged inside the mounting groove (2), a fixing groove (5) is provided on one side of the mounting column (4), the fixing column (3) is arranged inside the fixing groove (5), a clamping groove (6) is provided on one side of the fixing groove (5), a fixing mechanism is arranged inside the fixing column (3), the main body (1) is provided with positioning grooves (7) around, a blade (8) is arranged inside the positioning groove (7), one end of the blade (8) is arranged inside the positioning groove (7), limiting grooves (9) are provided on both sides of the positioning groove (7), and a limiting mechanism is arranged inside the blade (8).

2. The guide blade of an axial flow fan according to claim 1, characterized in that: The fixing mechanism comprises a cavity (10), a screw (11), a movable block (12), a limiting column (13), a clamping block (14), a limiting rod (15) and a first spring (16). The fixing column (3) has a cavity (10) therein, a screw (11) is movably arranged inside the cavity (10) via a bearing, the threads at both ends of the screw (11) are arranged oppositely, the movable blocks (12) are sleeved at both ends of the screw (11), a limiting column (13) is fixedly arranged inside the cavity (10) through the movable block (12), a clamping block (14) is arranged on one side of the cavity (10), a limiting rod (15) is fixedly arranged inside the cavity (10) through the clamping block (14), one end of the limiting rod (15) is sleeved with a first spring (16), and one end of the clamping block (14) passes through the fixing column (3) and is arranged inside the clamping groove (6).

3. The guide blade of an axial flow fan according to claim 1, characterized in that: The limiting mechanism comprises an installation cavity (17), a limiting block (18), a fixing rod (19) and a second spring (20); the installation cavity (17) is opened inside one end of the blade (8); limiting blocks (18) are arranged on both sides of the installation cavity (17); a plurality of fixing rods (19) are fixedly arranged inside the installation cavity (17) through the limiting blocks (18); the outer layer of the fixing rods (19) is sleeved with a second spring (20); one end of the limiting block (18) passes through the blade (8) and is arranged inside the limiting groove (9).

4. The guide blade of an axial flow fan according to claim 3, characterized in that: A button (21) is fixedly provided at one end of the limit block (18), and one end of the button (21) is arranged on both sides of the blade (8).

5. The guide blade of an axial flow fan according to claim 2, characterized in that: One end of the screw rod (11) passes through the main body (1) and is arranged on one side of the main body (1), and a handle (22) is fixedly arranged on one end of the screw rod (11).

6. The guide blade of an axial flow fan according to claim 2, characterized in that: One side of the movable block (12) is arranged in a trapezoidal shape, and one side of the clamping block (14) is arranged in a trapezoidal shape.

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