Shell structure of axial flow fan

Abstract

The utility model relates to the technical field of axial flow fans, and provides an axial flow fan shell structure which comprises a base and fixing bolts. Fixing bolts evenly penetrate through the interior of the base, a shell body is arranged above the base, and adjusting structures are evenly fixed to the top end of the base. By arranging the protection structure, in the using process of the device, lily blades are rotationally opened through air blowing of the axial flow fan body, then the overall using effect is not affected, when the device is not used, the lily blades are closed to protect the fan blades, a clamping rod is arranged in a clamping hole to position the whole protection base, and therefore the protection effect is improved. And in the dismounting, mounting and maintaining process, the pull rod is pulled inwards to enable the clamping rod to be away from the interior of the clamping hole, and therefore the purposes that the axial flow fan blades are conveniently protected when not used, and dismounting and mounting are convenient are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, and particularly relates to a shell structure of an axial flow fan. Background Technique

[0002] With the development of the times, people's use of mineral resources is becoming more and more extensive. During the process of mining them, phenomena such as turbid air may occur in mine tunnels, etc., which will affect the physical health and normal work of operators. Therefore, axial flow fans need to be used for ventilation and air change. During the process of installing and using them, in order to protect them and reduce noise, etc., a shell is needed to protect them.

[0003] The traditional shell of the axial flow fan is directly provided with ventilation openings. As a result, the fan blades of the axial flow fan may be damaged by collision during the non-use process, making it difficult to meet the actual use requirements. Moreover, during the installation process, its installation height is fixed, so it has certain limitations in actual use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a shell structure of an axial flow fan to solve the defects that the existing shell structure of the axial flow fan does not completely protect the axial flow fan and is not convenient to change the installation height.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A shell structure of an axial flow fan, including a base and fixing bolts;

[0006] The fixing bolts penetrate uniformly inside the base, an outer shell main body is arranged above the base, and adjusting structures are uniformly fixed at the top end of the base;

[0007] An installation frame is fixed inside the outer shell main body, an axial flow fan main body is installed at the top end of the installation frame, connection holes are uniformly opened on the outer walls on both sides of the outer shell main body, and a protection structure is arranged on the inner wall on one side of the outer shell main body;

[0008] The protection structure includes a protection seat, lily leaves, an internal groove, a clamping rod, a return spring, a pull rod and a clamping hole. The protection seat is arranged on the inner wall on one side of the outer shell main body, the lily leaves are uniformly hinged on the inner side wall of the protection seat, the internal grooves are uniformly opened inside the protection seat, the clamping rods are arranged inside the internal grooves, return springs are fixed on one side of each clamping rod, pull rods are fixed on one side of each clamping rod, and the clamping holes are uniformly opened on the inner wall on one side of the outer shell main body.

[0009] Preferably, the adjusting structure includes a threaded rod, a first limiting nut, a second limiting nut and a fixing block. The threaded rods are uniformly fixed to the top end of the base. The outer walls of the threaded rods are provided with first limiting nuts, and the outer walls of the threaded rods above the first limiting nuts are provided with second limiting nuts. The fixing blocks are uniformly fixed to the outer wall of the housing body.

[0010] Preferably, the threaded rods are equidistantly distributed at the top end of the base, and both the first limiting nut and the second limiting nut are threadedly connected to the threaded rod.

[0011] Preferably, the fixing blocks are equidistantly distributed on the outer wall of the housing body, and the threaded rods all penetrate through the inside of the fixing blocks.

[0012] Preferably, the top end of the first limiting nut abuts against the bottom end of the fixing block, and the bottom end of the second limiting nut abuts against the top end of the fixing block.

[0013] Preferably, the built-in grooves are equidistantly distributed inside the protective seat, and one side of the pull rod extends to the outside of the protective seat.

[0014] Preferably, one side of the clamping rod extends into the inside of the clamping hole, and the clamping rod and the housing body form a clamping structure through the clamping hole.

[0015] An axial flow fan housing structure provided by the present utility model has the following advantages:

[0016] By providing a protective structure, during the use of the device, the lily leaves are rotated and opened by the blowing of the axial flow fan main body, thus not affecting the overall use effect. When not in use, it is closed to protect the fan blades. The clamping rod is placed inside the clamping hole to position the entire protective seat. During the disassembly, installation and maintenance process, pulling the pull rod inward makes the clamping rod move away from the inside of the clamping hole, thus achieving the purpose of facilitating the protection of the axial flow fan blades when not in use and facilitating disassembly and assembly.

[0017] By providing an adjusting structure, during the installation and positioning of the housing body, according to the actual use requirements, the four first limiting nuts are placed at appropriate positions on the threaded rod, and then the housing body is placed on the outer wall of the threaded rod through the fixing block and installed and positioned by the second limiting nut, so that it is not easy to produce displacement, etc., thus achieving the purpose of adjusting the height of the axial flow fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the main three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is the front three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 It is a three-dimensional side view sectional structure diagram of the present utility model;

[0021] Figure 4 It is a three-dimensional front view sectional structure diagram of the present utility model;

[0022] Figure 5 It is an enlarged structure diagram at position A of the present utility model.

[0023] Explanation of the reference numerals in the figure: 1. Base; 2. Fixed bolt; 3. Outer shell main body; 4. Adjusting structure; 401. Threaded rod; 402. First limiting nut; 403. Second limiting nut; 404. Fixed block; 5. Mounting frame; 6. Axial flow fan main body; 7. Connecting hole; 8. Protection structure; 801. Protection seat; 802. Lily leaf; 803. Built-in groove; 804. Clamping rod; 805. Return spring; 806. Pull rod; 807. Clamping hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , an axial flow fan housing structure provided by the present utility model includes a base 1 and a fixed bolt 2.

[0026] Refer to Figure 1 and Figure 2As shown, fixing bolts 2 penetrate uniformly through the interior of the base 1. Above the base 1, there is a housing main body 3. At the top of the base 1, adjusting structures 4 are uniformly fixed. The adjusting structure 4 includes a threaded rod 401, a first limit nut 402, a second limit nut 403, and a fixing block 404. The threaded rods 401 are uniformly fixed to the top of the base 1. On the outer wall of the threaded rod 401, first limit nuts 402 are provided. On the outer wall of the threaded rod 401 above the first limit nut 402, second limit nuts 403 are provided. The fixing blocks 404 are uniformly fixed to the outer wall of the housing main body 3. The threaded rods 401 are evenly distributed at the top of the base 1. Both the first limit nut 402 and the second limit nut 403 are threadedly connected to the threaded rod 401. The fixing blocks 404 are evenly distributed on the outer wall of the housing main body 3. The threaded rods 401 all penetrate through the interior of the fixing blocks 404. The top of the first limit nut 402 abuts against the bottom of the fixing block 404, and the bottom of the second limit nut 403 abuts against the top of the fixing block 404.

[0027] During the installation and use of the axial flow fan, its height and the like are relatively fixed. Thus, during actual use, it has certain limitations, making it difficult to meet actual use requirements. Therefore, by providing the adjusting structure 4, the housing main body 3 is sleeved on the outer wall of the threaded rod 401 through the fixing blocks 404, and it is convenient to fix its position with the two nuts at the upper and lower ends of the fixing blocks 404. When installing, by changing the position of the first limit nut 402, the overall height of the housing main body 3 is changed, thus greatly increasing the practicality of the device.

[0028] Refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown in the figure, a mounting frame 5 is fixedly installed inside the housing main body 3. An axial flow fan main body 6 is installed at the top of the mounting frame 5. Connecting holes 7 are evenly formed on the outer walls on both sides of the housing main body 3. A protection structure 8 is arranged on the inner wall of one side of the housing main body 3. The protection structure 8 includes a protection seat 801, lily leaves 802, an internal groove 803, a clamping rod 804, a return spring 805, a pull rod 806 and a clamping hole 807. The protection seat 801 is arranged on the inner wall of one side of the housing main body 3. Lily leaves 802 are evenly hinged on the inner side wall of the protection seat 801. Internal grooves 803 are evenly formed inside the protection seat 801. Clamping rods 804 are arranged inside the internal grooves 803. A return spring 805 is fixedly installed on one side of each clamping rod 804. A pull rod 806 is fixedly installed on one side of each clamping rod 804. Clamping holes 807 are evenly formed on the inner wall of one side of the housing main body 3. The internal grooves 803 are arranged at equal intervals inside the protection seat 801. One side of each pull rod 806 extends to the outside of the protection seat 801. One side of each clamping rod 804 extends into the clamping hole 807. The clamping rod 804 and the housing main body 3 form a clamping structure through the clamping hole 807.

[0029] During the process when the axial flow fan is not in use, impurities may collide with its fan blades, etc., which will affect the actual service life of the device. Therefore, by setting the protection structure 8, pulling the pull rod 806 makes the clamping rod 804 located inside the internal groove 803, and then it is convenient to install the protection seat 801 on the inner wall of the housing main body 3. Then release the pull rod 806, and the clamping rod 804 is pushed by the return spring 805 to move into the clamping hole 807, so as to position it. When not in use, the lily leaves 802 close the through hole of the protection seat 801 to protect the fan blades. During the use process, the blowing of the fan makes the lily leaves 802 open, and thus it will not affect the overall use effect.

[0030] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An axial flow fan housing structure, including a base (1) and fixing bolts (2); It is characterized in that: The fixing bolts (2) penetrate uniformly through the interior of the base (1). Above the base (1), there is a housing main body (3). At the top end of the base (1), an adjusting structure (4) is uniformly fixed; Inside the housing main body (3), there is a mounting bracket (5). At the top end of the mounting bracket (5), an axial flow fan main body (6) is installed. On the outer walls on both sides of the housing main body (3), connection holes (7) are uniformly opened. On the inner wall on one side of the housing main body (3), a protection structure (8) is provided; The protection structure (8) includes a protection seat (801), lily leaves (802), built-in grooves (803), clamping rods (804), return springs (805), pull rods (806), and clamping holes (807). The protection seat (801) is arranged on the inner wall on one side of the housing main body (3). On the inner side wall of the protection seat (801), lily leaves (802) are uniformly hinged. Inside the protection seat (801), built-in grooves (803) are uniformly opened. Inside the built-in grooves (803), clamping rods (804) are arranged. On one side of each clamping rod (804), a return spring (805) is fixed. On one side of each clamping rod (804), a pull rod (806) is fixed. The clamping holes (807) are uniformly opened on the inner wall on one side of the housing main body (3).

2. The axial flow fan housing structure according to claim 1, characterized in that: The adjusting structure (4) includes threaded rods (401), first limit nuts (402), second limit nuts (403), and fixing blocks (404). The threaded rods (401) are uniformly fixed at the top end of the base (1). On the outer walls of the threaded rods (401), first limit nuts (402) are arranged. On the outer walls of the threaded rods (401) above the first limit nuts (402), second limit nuts (403) are arranged. The fixing blocks (404) are uniformly fixed on the outer wall of the housing main body (3).

3. The axial flow fan housing structure according to claim 2, characterized in that: The threaded rods (401) are equidistantly distributed at the top end of the base (1). Both the first limit nuts (402) and the second limit nuts (403) are threadedly connected to the threaded rods (401).

4. The axial flow fan housing structure according to claim 2, wherein: The fixing blocks (404) are equidistantly distributed on the outer wall of the housing main body (3). The threaded rods (401) all penetrate through the interiors of the fixing blocks (404).

5. The axial flow fan housing structure according to claim 2, characterized in that: The top end of the first limit nut (402) abuts against the bottom end of the fixing block (404), and the bottom end of the second limit nut (403) abuts against the top end of the fixing block (404).

6. The axial flow fan housing structure according to claim 1, characterized in that: The built-in grooves (803) are equidistantly distributed inside the protection seat (801). On one side of each pull rod (806), it extends to the outside of the protection seat (801).

7. The axial flow fan housing structure according to claim 1, characterized in that: On one side of each clamping rod (804), it extends into the clamping hole (807). The clamping rod (804) and the housing main body (3) form a clamping structure through the clamping hole (807).

Images