Axial flow fan installed on wall

Abstract

The utility model relates to the technical field of fans, in particular to an axial flow fan installed on a wall. Comprising a shell, a driving device, a rotating mechanism and a shell, a driving device is fixedly installed in the machine shell, the moving end of the driving device is fixedly connected with a rotating mechanism, and the outer side face of the machine shell is detachably connected with a shell. According to the axial flow fan, the square shell is arranged and detachably connected with the machine shell, when the wall body is of a circular hole structure, the shell can be detached, and the machine shell can be used, when the wall body is of a square hole structure, the shell can be installed outside the machine shell, the axial flow fan of a square structure is formed and then installed on the wall body, and no matter the wall body is provided with the circular hole or the square hole; according to the axial flow fan, the wall body does not need to be transformed, so that time, labor force and raw materials are greatly saved, the shell and the machine shell are easy and convenient to mount and dismount, much time does not need to be consumed, operation of professionals is not needed, and the using effect of the axial flow fan is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an axial flow fan installed on a wall. Background Technique

[0002] Axial flow fans are widely used. They are a type of fan in which the air flow direction is the same as the axis of the fan blades. For example, electric fans and the external fans of air conditioners operate in an axial flow manner. The reason for being called "axial flow" is that the gas flows parallel to the axis of the fan. Axial flow fans are usually used in occasions where a higher flow rate and a lower pressure are required.

[0003] Currently, the main problems existing in the existing axial flow fans installed on walls during use are as follows: Generally, the casing structure of such axial flow fans is circular. When the installation hole in the wall is square, the wall needs to be modified. However, the workload of modifying the wall structure is very large, which requires time, labor, and an increase in raw material expenditure. As a result, the use effect of such fans will be greatly reduced. Therefore, we propose a new type of axial flow fan installed on a wall. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an axial flow fan installed on a wall. After the structural improvement of the axial flow fan, the problems raised in the above background technique can be effectively solved.

[0005] The technical solution of the utility model is as follows:

[0006] An axial flow fan installed on a wall, comprising a casing, a driving device, a rotating mechanism, and an outer shell;

[0007] A driving device is fixedly installed inside the casing, a moving end of the driving device is fixedly connected to a rotating mechanism, and an outer shell is detachably connected to an outer side surface of the casing;

[0008] The outer shell includes a first side plate, a second side plate, a third side plate, and a fourth side plate; the first side plate, the second side plate, the third side plate, and the fourth side plate are all fixedly installed on the outer wall of the casing through screws. Grooves are provided at both ends of the inner side surfaces of the first side plate and the second side plate, and convex edges are provided at both ends of the third side plate and the fourth side plate corresponding to the grooves. The first side plate is respectively plugged and fixed with the third side plate and the fourth side plate, and the second side plate is respectively plugged and fixed with the third side plate and the fourth side plate.

[0009] Furthermore, threaded connection through holes are provided in the middle of the first side plate, the second side plate, the third side plate, and the fourth side plate. Four threaded connection blind holes are provided on the casing corresponding to the four threaded connection through holes. The threaded connection through holes and the threaded connection blind holes are threadedly connected through screws.

[0010] Furthermore, the rotating mechanism includes a connecting plate and fan blades. A plurality of fan blades are welded to the side end of the connecting plate, and the angle between the plurality of fan blades and the horizontal plane is 35°.

[0011] Furthermore, the driving device uses a forward and reverse motor, and the rotating end of the forward and reverse motor is fixedly connected to the connecting plate.

[0012] Furthermore, a first dust-proof net and a second dust-proof net are respectively installed on the front end face and the rear end face of the casing. The circumferential ends of the first dust-proof net and the second dust-proof net are fixedly installed on the casing through a plurality of bolts.

[0013] Furthermore, the front view of the outer shell is square.

[0014] The beneficial effects of the present utility model are as follows:

[0015] Compared with the prior art, the present utility model is provided with a square outer shell, and the outer shell and the casing are detachably connected. When the wall is a circular hole structure, the outer shell can be disassembled and only the casing can be used. When the wall is a square hole structure, the outer shell can be installed outside the casing to form an axial flow fan with a square structure and then installed on the wall. In this way, whether it is a circular hole wall or a square hole wall, there is no need to transform the wall, thereby greatly saving time, labor and raw materials. Moreover, the installation and disassembly of the outer shell and the casing are relatively simple, without consuming much time and without the need for professional operation, thereby greatly improving the use effect of the present axial flow fan and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of another side of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the first side plate of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the third side plate of the present utility model;

[0020] Figure 5 is a schematic structural diagram of the present utility model after disassembling the outer shell;

[0021] Figure 6 is a schematic structural diagram of the rotating mechanism of the present utility model.

[0022] In the figure, 1 is the casing; 2 is the driving device; 3 is the rotating mechanism; 4 is the outer shell; 5 is the first side plate; 6 is the second side plate; 7 is the third side plate; 8 is the fourth side plate; 9 is the groove; 10 is the convex rib; 11 is the threaded connection through hole; 12 is the connecting plate; 13 is the fan blade; 14 is the first dust-proof net; 15 is the second dust-proof net; 16 is the bolt; 17 is the screw rod. Detailed implementation mode

[0023] The following further explains the detailed implementation mode of the present utility model with reference to the attached drawings:

[0024] As Figure 1-6 shown,

[0025] An axial flow fan installed on a wall includes a casing 1, a driving device 2, a rotating mechanism 3 and an outer shell 4; a driving device 2 is fixedly installed inside the casing 1, a moving end of the driving device 2 is fixedly connected to a rotating mechanism 3, and an outer side surface of the casing 1 is detachably connected to an outer shell 4; the outer shell 4 includes a first side plate 5, a second side plate 6, a third side plate 7 and a fourth side plate 8; the first side plate 5, the second side plate 6, the third side plate 7 and the fourth side plate 8 are all fixedly installed on the outer wall of the casing 1 through screw rods 17, both ends of the inner side surfaces of the first side plate 5 and the second side plate 6 are provided with grooves 9, and convex ribs 10 are provided at both ends of the third side plate 7 and the fourth side plate 8 corresponding to the grooves 9, the first side plate 5 is respectively inserted and fixed with the third side plate 7 and the fourth side plate 8, and the second side plate 6 is respectively inserted and fixed with the third side plate 7 and the fourth side plate 8; in this embodiment, since the outer shell 4 includes the first side plate 5, the second side plate 6, the third side plate 7 and the fourth side plate 8, the first side plate 5 can be installed first, the first side plate 5 is first fixed on the casing 1 through a screw rod 17, then the third side plate 7 and the fourth side plate 8 are inserted (through the grooves 9 and the corresponding convex ribs 10), and the third side plate 7 and the fourth side plate 8 are fixed on the casing 1 by using screw rods 17, and finally the second side plate 6 is installed, the second side plate 6 is respectively inserted with the third side plate 7 and the fourth side plate 8 and fixed on the casing 1 by using screw rods 17, thus completing the installation of the outer shell 4, and the disassembly process is to remove each screw rod 17; in this application, the outer shell 4 is formed by using the first side plate 5, the second side plate 6, the third side plate 7 and the fourth side plate 8, aiming to facilitate the installation and disassembly of the outer shell 4, without consuming much time and without the need for professional operation, thereby greatly improving the use effect of this axial flow fan.

[0026] As a preferred embodiment, threaded connection through holes 11 are provided in the middle of the first side plate 5, the second side plate 6, the third side plate 7 and the fourth side plate 8. Four threaded connection blind holes (not shown in the figure) are provided on the machine shell 1 corresponding to the four threaded connection through holes 11. The threaded connection through holes 11 and the threaded connection blind holes are threadedly connected by screws 17. The purpose of this design is that each side plate can be detachably connected. Moreover, a square outer shell 4 can be formed after each side plate is installed. At the same time, the grooves 9 on the first side plate 5 and the second side plate 6 correspond to the ridges 10 on the third side plate 7 and the fourth side plate 8 and form a plug-in connection, and the fixing effect after installation is excellent.

[0027] As a preferred embodiment, the rotating mechanism 3 includes a connecting plate 12 and fan blades 13. A plurality of fan blades 13 are welded to the side end of the connecting plate 12. The included angle between the plurality of fan blades 13 and the horizontal plane is 35°. It can be understood that forming an included angle of 35° between the fan blades 13 and the horizontal plane can greatly increase the wind pressure and the air volume, and to a certain extent reduce the energy consumption.

[0028] As a preferred embodiment, the driving device 2 uses a forward and reverse motor. The rotating end of the forward and reverse motor is fixedly connected to the connecting plate 12. It can be understood that the forward and reverse motor can drive the connecting plate 12 to rotate, and then drive the plurality of fan blades 13 to rotate.

[0029] As a preferred embodiment, a first dust-proof net 14 and a second dust-proof net 15 are respectively installed on the front end face and the rear end face of the machine shell 1. The circumferential ends of the first dust-proof net 14 and the second dust-proof net 15 are fixedly installed on the machine shell 1 through a plurality of bolts 16. By providing the first dust-proof net 14 and the second dust-proof net 15, a part of the dust can be blocked, thereby prolonging the cleaning time of the axial flow fan. Moreover, the first dust-proof net 14 and the second dust-proof net 15 can be detachably connected, so as to facilitate their disassembly and cleaning or replacement.

[0030] As a preferred embodiment, the front view of the outer shell 4 is square; it can be square or rectangular, and is matched according to the actual wall structure.

[0031] It should be noted that the main problems in the prior art are as follows: generally, the casing structure of this type of axial flow fan is circular. When the installation hole in the wall is square, the wall needs to be modified. However, the workload of modifying the wall structure is very large, which requires time, labor, and additional raw materials, thus greatly reducing the use effect of this type of fan.

[0032] Therefore, after the improvement of this application, by providing a square outer shell 4, and the outer shell 4 is detachably connected to the casing 1. When the wall has a circular hole structure, the outer shell 4 can be removed and the casing 1 can be used. When the wall has a square hole structure, the outer shell 4 can be installed outside the casing 1 to form an axial flow fan with a square structure and then installed on the wall. In this way, whether it is a circular hole wall or a square hole wall, there is no need to modify the wall, thus greatly saving time, labor and raw materials. Moreover, the installation and disassembly of the outer shell 4 and the casing 1 are relatively simple, without consuming much time and without the need for professional operation, thereby greatly improving the use effect of this axial flow fan.

[0033] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An axial flow fan mounted on a wall, comprising a casing, a driving device, a rotating mechanism and a housing; A driving device is fixedly installed inside the housing, a rotating mechanism is fixedly connected to the moving end of the driving device, and a shell is detachably connected to the outer side of the housing; the characteristics are: The shell includes a first side panel, a second side panel, a third side panel and a fourth side panel; the first side panel, the second side panel, the third side panel and the fourth side panel are all fixedly mounted on the outer wall of the shell by screws, grooves are provided at both ends of the inner side surfaces of the first side panel and the second side panel, ridges are provided at both ends of the third side panel and the fourth side panel and at corresponding grooves, the first side panel is respectively plugged and fixed to the third side panel and the fourth side panel, and the second side panel is respectively plugged and fixed to the third side panel and the fourth side panel.

2. The axial flow fan installed on a wall according to claim 1, characterized in that: The first side plate, the second side plate, the third side plate and the fourth side plate are all provided with threaded through holes in the middle, and the housing is provided with four threaded blind holes corresponding to the four threaded through holes, and the threaded through holes and the threaded blind holes are threadedly connected by screws.

3. The axial flow fan installed on a wall according to claim 2, characterized in that: The rotating mechanism comprises a connecting plate and fan blades. A plurality of fan blades are welded to the side end of the connecting plate, and the angle between the plurality of fan blades and the horizontal plane is 35°.

4. The axial flow fan installed on a wall according to claim 3, characterized in that: The driving device adopts a forward and reverse motor, and the rotating end of the forward and reverse motor is fixedly connected to the connecting plate.

5. The axial flow fan installed on a wall according to claim 4, characterized in that: The front end surface and the rear end surface of the housing are respectively installed with a first dustproof net and a second dustproof net, and the circumferential ends of the first dustproof net and the second dustproof net are fixed to the housing by a plurality of bolts.

6. The axial flow fan installed on a wall according to claim 5, characterized in that: The housing is square in front view.

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