Fan blade with large air volume and low-speed rotation

Abstract

The utility model discloses a large-air-volume low-speed rotating fan blade which comprises a supporting cylinder, a blade body is fixedly connected to the outer portion of the supporting cylinder, a protection mechanism used for enclosing the outer portion of the supporting cylinder is arranged on the side portion of the supporting cylinder, the protection mechanism comprises a bearing cylinder, a protection cylinder and a protection plate, and the protection cylinder is located on the side portion of the bearing cylinder. The protection cylinder and the bearing cylinder are used for carrying out fence protection on the side portion of the supporting cylinder, and the protection plate is located in the protection cylinder and used for carrying out shielding protection on the interior of the protection cylinder. The bearing cylinder, the protection cylinder, the protection plate, the fixing plate, the bearing plate, the assembling plate and the locking column are matched with one another, the protection plate corresponds to the fan blade driving shaft body, the protection cylinder and the shaft body are sealed through the protection plate and the protection cylinder, and the locking column limits the relative positions of the assembling plate and the bearing plate; and therefore, dustproof protection can be conducted on the interior of the supporting cylinder, subsequent cleaning of the fan blades is facilitated, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of fan blades, in particular to a fan blade with large air volume and low speed rotation. Background Art

[0002] Fan blades are usually an important component of a fan. The fan blades can be driven by a motor to rotate, thereby generating wind, and then blowing the wind. There are various types of fan blades, including large air volume and low-speed rotating fan blades.

[0003] The large-volume, low-speed rotating fan blades in the prior art usually include a supporting tube, an assembly tube, a supporting member and blades, etc. The assembly tube is fixed to the inside of the supporting tube by the supporting member, and the blades are fixed to the inside of the supporting tube. The supporting tube is usually aligned with the fan body, and the assembly tube is installed with the shaft body. The supporting tube is locked and fixed using an external locking member, and the locking member fits with the supporting tube to protect the inside of the supporting tube facing outward from dust. The external driving motor drives the shaft body to rotate, and the shaft body drives the supporting tube to rotate, thereby driving the blades to rotate.

[0004] After the large-volume, low-speed rotating fan blades are installed on the shaft, they are usually placed unobstructed inside the support tube facing the drive motor, and external dust may enter. When the fan blades are subsequently cleaned, the cleaning space inside the support tube is limited, making cleaning inconvenient. The large-volume, low-speed rotating fan blades are not convenient for dust-proof protection of the inside of the support tube, and have certain limitations. Utility Model Content

[0005] The utility model aims to provide a fan blade with large air volume and low speed rotation, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a fan blade with large air volume and low speed rotation, comprising:

[0007] A support tube, wherein blades are fixedly connected to the outside of the support tube;

[0008] The side of the support tube is provided with a protection mechanism for enclosing the outside of the support tube, and the protection mechanism includes:

[0009] A bearing tube and a protective tube, wherein the protective tube is located on the side of the bearing tube, and the protective tube and the bearing tube are used to enclose and protect the side of the supporting tube;

[0010] A protection plate is located inside the protection tube and is used to shield and protect the inside of the protection tube.

[0011] Preferably, the outside of the support tube is fixedly connected with the inner cavity of the bearing tube, the protection plate is embedded in the inside of the protection tube, an arc groove is opened on the side of the protection plate, and an arc pad is embedded in the inner wall of the arc groove.

[0012] Preferably, an assembly tube is fixedly connected to the side of the bearing tube, the assembly tube is slidably and interlacedly connected to the inner cavity of the protection tube, and the top and bottom ends of the bearing tube are symmetrically and fixedly connected to fixing plates.

[0013] Preferably, the top and bottom ends of the protective tube are fixedly connected to a bearing plate, a mounting plate is provided on the side of the fixing plate, a mounting groove is provided on the side of the bearing plate, and the mounting plate is slidably and interlacedly connected with the inner cavity of the mounting groove.

[0014] Preferably, a groove is provided on the side of the supporting plate, a first sliding groove is provided on the side of the inner wall of the groove, a limiting groove is provided on the side of the assembly plate, a locking column is slidingly arranged inside the first sliding groove for locking the relative position of the supporting plate and the assembly plate, and the locking column is slidably and interlacedly connected with the inner cavity of the limiting groove.

[0015] Preferably, a movable plate for driving the locking column to slide horizontally is fixedly connected to the side of the locking column, the movable plate is slidably and interlacedly connected to the inner cavity of the groove, and a pushing plate for driving the movable plate to slide horizontally is fixedly connected to the side of the movable plate.

[0016] Preferably, a mounting rod is threadedly inserted into the side of the supporting plate, and the outer wall of the mounting rod is slidably inserted into the movable plate. The outer wall of the mounting rod is sleeved with a spring for driving the movable plate to slide horizontally, one end of the spring is in contact with the movable plate, and the other end of the spring is in contact with the inner wall of the groove.

[0017] Preferably, a second slide groove is opened on the side of the inner wall of the groove, the side of the movable plate is fixedly connected to an auxiliary plate, the bottom end of the auxiliary plate is fixedly connected to a guide seat, the guide seat is slidably and interlacedly connected with the inner cavity of the second slide groove, and the inner cavity of the guide seat is embedded with a ball.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model utilizes the mutual cooperation of a bearing tube, a protective tube, a protective plate, a fixed plate, a bearing plate, an assembly plate and a locking column. The bearing tube supports the protective tube, the protective plate corresponds to the fan blade driving shaft, the protective plate and the protective tube seal the protective tube and the shaft, the assembly plate connects the fixed plate with the bearing plate, and the locking column limits the relative position of the assembly plate and the bearing plate, which is beneficial to dust-proof protection of the interior of the supporting tube, facilitates subsequent cleaning of the fan blades, and is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a front sectional structural schematic diagram of the protection tube of the utility model.

[0022] Figure 3 It is a front sectional structural schematic diagram of the load-bearing plate of the utility model.

[0023] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. support cylinder; 2. blade; 3. protection mechanism; 31. bearing cylinder; 32. protection cylinder; 33. protection plate; 34. fixing plate; 35. bearing plate; 36. assembly plate; 37. locking column; 38. movable plate; 39. mounting rod; 310. spring; 4. auxiliary plate; 5. guide seat; 6. ball; 7. assembly cylinder. DETAILED DESCRIPTION

[0025] 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.

[0026] The utility model provides Figure 1-4 A fan blade with large air volume and low speed rotation is shown, comprising a support tube 1, the outside of which is fixedly connected with a blade 2, and the angle and shape of the blade 2 can rotate at a high air volume and low speed.

[0027] Furthermore, a protective mechanism 3 for enclosing the outside of the support tube 1 is provided on the side of the support tube 1. The protective mechanism 3 includes a bearing tube 31, a protective tube 32 and a protective plate 33. The bearing tube 31 is conducive to supporting the assembly tube 7, which is convenient for installing the protective tube 32. The protective tube 32 is semi-annular, and the protective tube 32 is conducive to installation in a docking manner, so that the support tube 1 can be installed and fixed after installation. The length of the protective tube 32 is just the distance between the support tube 1 and the fan housing, and the protective tube 32 is conducive to dustproofing the inside of the support tube 1. The protective tube 32 can rotate with the support tube 1, and the protective plate 33 is semi-circular, which is conducive to shielding and protecting the interior of the protective tube 32, and then to shielding and protecting the interior of the support tube 1. The protective tube 32 is located on the side of the bearing tube 31, and the protective tube 32 and the bearing tube 31 are used to enclose and protect the side of the support tube 1. The protective plate 33 is located inside the protective tube 32, and the protective plate 33 is used to shield and protect the interior of the protective tube 32. The support tube 1 The outer part is fixedly connected with the inner cavity of the bearing tube 31, and the protection plate 33 is embedded in the inner part of the protection tube 32. The side of the protection plate 33 is provided with an arc groove, and the inner wall of the arc groove is embedded with an arc pad, which is conducive to matching with the outer part of the driving shaft body, and then it is conducive to sealing protection between the protection plate 33 and the driving shaft body, and it is convenient to protect the inside of the support tube 1 from dust. The side of the bearing tube 31 is fixedly connected with an assembly tube 7, which is conducive to connecting with the protection tube 32 and supporting the protection tube 32. The assembly tube 7 is slidably inserted and connected with the inner cavity of the protection tube 32 Then, the top and bottom ends of the supporting tube 31 are symmetrically fixedly connected with a fixing plate 34, which is beneficial to supporting the assembly plate 36. The top and bottom ends of the protective tube 32 are fixedly connected with a supporting plate 35, which is beneficial to connecting with the assembly plate 36, and further beneficial to positioning and installing the two protective tubes 32. An assembly plate 36 is provided on the side of the fixing plate 34, which is beneficial to connecting the fixing plate 34 with the supporting plate 35, and is convenient for installing the two protective tubes 32. An installation groove is provided on the side of the supporting plate 35, and the assembly plate 36 is slidably and interlacedly connected with the inner cavity of the installation groove.

[0028] Specifically, a groove is provided on the side of the carrying plate 35, and a first sliding groove is provided on the side of the inner wall of the groove. A limiting groove is provided on the side of the assembly plate 36. A locking column 37 is slidingly arranged inside the first sliding groove to lock the relative position of the carrying plate 35 and the assembly plate 36, which is conducive to limiting the relative position of the assembly plate 36 and the carrying plate 35, and thus is conducive to installing and removing the protective tube 32. The locking column 37 is slidably inserted and connected with the inner cavity of the limiting groove, and the side of the locking column 37 is fixedly connected with a moving plate 38 for driving the locking column 37 to slide horizontally, which is conducive to driving the locking column 37 to move and facilitate the pulling operation of the locking column 37. The moving plate 38 is slidably inserted and connected with the inner cavity of the groove, and the side of the moving plate 38 is fixedly connected with a pushing plate for driving the moving plate 38 to slide horizontally, which is conducive to pushing the moving plate 38 to move. The side of the carrying plate 35 is threadedly inserted and connected with a mounting rod 39, which is conducive to moving The outer wall of the mounting rod 39 is provided with a spring 310 for driving the movable plate 38 to slide horizontally. The elastic force of the spring 310 is conducive to pushing the movable plate 38 to move, so that the locking column 37 can be restored to its original position after movement, and it is convenient to repeat the operation of the locking column 37. One end of the spring 310 is in contact with the movable plate 38, and the other end of the spring 310 is in contact with the inner wall of the groove. A second sliding groove is provided on the side of the inner wall of the groove. The side of the movable plate 38 is fixedly connected with an auxiliary plate 4, which is conducive to supporting the guide seat 5. The bottom end of the auxiliary plate 4 is fixedly connected with a guide seat 5, which is conducive to guiding the sliding of the movable plate 38. The guide seat 5 is slidably and interlacedly connected with the inner cavity of the second sliding groove. The inner cavity of the guide seat 5 is embedded with a ball 6, which is convenient for the movable plate 38 to slide smoothly.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 fan blade with large air volume and low speed rotation, comprising: A support tube (1), wherein the outside of the support tube (1) is fixedly connected with a blade (2); The invention is characterized in that a protection mechanism (3) for enclosing the outside of the support tube (1) is provided on the side of the support tube (1), and the protection mechanism (3) comprises: A bearing tube (31) and a protective tube (32), wherein the protective tube (32) is located on the side of the bearing tube (31), and the protective tube (32) and the bearing tube (31) are used to enclose and protect the side of the supporting tube (1); A protection plate (33), wherein the protection plate (33) is located inside the protection tube (32), and the protection plate (33) is used to shield and protect the inside of the protection tube (32).

2. A fan blade with large air volume and low speed rotation according to claim 1, characterized in that: The outside of the support tube (1) is fixedly connected to the inner cavity of the bearing tube (31), and the protection plate (33) is embedded in the inside of the protection tube (32). An arc groove is opened on the side of the protection plate (33), and an arc pad is embedded in the inner wall of the arc groove.

3. A fan blade with large air volume and low speed rotation according to claim 1, characterized in that: The side of the bearing tube (31) is fixedly connected to an assembly tube (7), the assembly tube (7) is slidably interlaced with the inner cavity of the protection tube (32), and the top and bottom ends of the bearing tube (31) are symmetrically fixedly connected to fixing plates (34).

4. A fan blade with large air volume and low speed rotation according to claim 3, characterized in that: The top and bottom ends of the protection tube (32) are fixedly connected to a bearing plate (35), the side of the fixing plate (34) is provided with an assembly plate (36), the side of the bearing plate (35) is provided with a mounting groove, and the assembly plate (36) is slidably interlaced with the inner cavity of the mounting groove.

5. A fan blade with large air volume and low speed rotation according to claim 4, characterized in that: A groove is provided on the side of the bearing plate (35), a first sliding groove is provided on the side of the inner wall of the groove, a limiting groove is provided on the side of the assembly plate (36), a locking column (37) is slidably provided inside the first sliding groove for locking the relative position of the bearing plate (35) and the assembly plate (36), and the locking column (37) is slidably connected with the inner cavity of the limiting groove.

6. A fan blade with large air volume and low speed rotation according to claim 5, characterized in that: The side of the locking column (37) is fixedly connected to a movable plate (38) for driving the locking column (37) to slide horizontally, the movable plate (38) is slidably connected to the inner cavity of the groove, and the side of the movable plate (38) is fixedly connected to a push plate for driving the movable plate (38) to slide horizontally.

7. A fan blade with large air volume and low speed rotation according to claim 6, characterized in that: The side of the supporting plate (35) is threadedly connected with a mounting rod (39), the outer wall of the mounting rod (39) is slidably connected with the movable plate (38), and the outer wall of the mounting rod (39) is sleeved with a spring (310) for driving the movable plate (38) to slide horizontally, one end of the spring (310) is in contact with the movable plate (38), and the other end of the spring (310) is in contact with the inner wall of the groove.

8. A fan blade with large air volume and low speed rotation according to claim 7, characterized in that: A second slide groove is provided on the side of the inner wall of the groove, an auxiliary plate (4) is fixedly connected to the side of the movable plate (38), a guide seat (5) is fixedly connected to the bottom end of the auxiliary plate (4), the guide seat (5) is slidably connected with the inner cavity of the second slide groove, and a ball (6) is embedded in the inner cavity of the guide seat (5).

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