Fan lock bolt structure

Abstract

The utility model discloses a fan lock bolt structure, which relates to the technical field of fan fixing and comprises an air conditioner outdoor unit and a motor mounted in the air conditioner outdoor unit, an output shaft is arranged on the motor, a fan is mounted on the output shaft, a nut is sleeved at the shaft end of the output shaft, the fan is mounted in the air conditioner outdoor unit, and the nut is sleeved at the shaft end of the output shaft. When the fan is installed, the fan is arranged on the output shaft of the nut in a sleeved mode, then the nut is rotationally arranged on the output shaft in a sleeved mode, an expansion groove is formed in the rear end of the nut, the diameter of a shaft hole of the nut is 3.5 mm, the diameter of the limiting part is 3.6 mm, and the fan is fixed to the output shaft in a threaded mode through the nut. According to the nut anti-loosening structure, the groove structure at the tail end of the nut slightly deforms and expands to 3.6 mm in the nut fixing process, the shaft hole at the tail end of the fixed nut is restored to 3.5 mm, the shaft hole of the nut cannot deform and become large even if the nut is loosened in the air conditioner operation process, displacement of the nut can be effectively limited, and therefore the nut anti-loosening effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan fixing, in particular to a fan anti-loosening bolt structure. Background Art

[0002] During the use of the outdoor unit fan, the fixing nut is easy to loosen and cause the fan blades to fall off. The current solution is to add thread glue to the nut, which not only increases the thread glue material but also requires an additional person to add thread glue, increasing material and labor costs. In addition, it is extremely inconvenient to remove the fan blades. The nut needs to be heated with hot water or a hair dryer before it can be loosened, which brings operational difficulties to users. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a fan anti-loosening bolt structure to solve the technical problems that the prior fan anti-loosening bolt structure is not stable enough for fixing the fan, which easily causes the fan to fall off, and the disassembly of the fan is cumbersome and inconvenient to use.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A fan anti-loosening bolt structure comprises an air-conditioning outdoor unit and a motor installed in the air-conditioning outdoor unit, wherein the motor is provided with an output shaft, a fan is installed on the output shaft, a nut is sleeved on the shaft end of the output shaft, wherein a fan is installed in the air-conditioning outdoor unit, the fan is threadedly fixed to the output shaft through a nut, an expansion groove is provided at the rear end of the nut, wherein a limiting portion is provided at the rear end of the output shaft.

[0008] Preferably, the output shaft and the limiting portion are designed as one piece.

[0009] Preferably, the limiting portion is in the shape of an arcuate sphere.

[0010] Preferably, the diameter of the limiting portion is 3.6 mm.

[0011] Preferably, the diameter of the shaft hole of the nut is 3.5 mm.

[0012] (III) Beneficial effects

[0013] 1. When installing the fan, put the fan sleeve on the output shaft of the nut, and then rotate the nut to put it on the output shaft. An expansion slot is opened at the rear end of the nut. The diameter of the shaft hole of the nut is 3.5mm, and the diameter of the limit part is 3.6mm. During the fixing process of the nut, the slot structure at the end of the nut is slightly deformed and expanded to 3.6mm. After fixing, the shaft hole at the end of the nut is restored to 3.5mm. Even if the nut is loose during the operation of the air conditioner, the shaft hole of the nut cannot be deformed and enlarged, which can effectively limit the displacement of the nut, thereby achieving the effect of preventing the nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the overall structure of the fan anti-loosening bolt of the utility model;

[0016] Figure 2 This is a structural diagram of the motor of the utility model;

[0017] Figure 3 This is a structural diagram of the nut of the utility model;

[0018] Figure 4 This is a structural diagram of the expansion slot of the utility model;

[0019] Figure 5 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 6 For this utility model Figure 2 The enlarged structure diagram at B in the middle;

[0021] Figure 7 This is a structural diagram of the fan of the utility model;

[0022] Figure 8 This is a completed diagram of the assembly of the output shaft and the nut of the utility model.

[0023] Legend: 1. Air conditioner outdoor unit; 11. Motor; 12. Output shaft; 13. Limiting part; 2. Nut; 21. Expansion slot; 3. Fan. DETAILED DESCRIPTION

[0024] The embodiment of the present application provides a fan anti-loosening bolt structure, which effectively solves the problem that the existing fan anti-loosening bolt structure is not stable enough to fix the fan, which easily causes the fan to fall off, and the disassembly of the fan is also cumbersome and inconvenient to use. When installing the fan, the fan anti-loosening bolt structure is arranged on the output shaft of the nut, and then the nut is rotated and arranged on the output shaft. An expansion groove is provided at the rear end of the nut, the shaft hole diameter of the nut is 3.5mm, and the diameter of the limiting portion is 3.6mm, so that the slotted structure at the end of the nut is slightly deformed and expanded to 3.6mm during the nut fixing process. After fixing, the shaft hole at the end of the nut is restored to 3.5mm. Even if the nut is loosened during the operation of the air conditioner, the shaft hole of the nut cannot be deformed and enlarged, so the displacement of the nut can be effectively limited, thereby achieving the effect of preventing the nut from loosening.

[0025] Embodiment: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the technical solution in the embodiment of the present application effectively solves the technical problems that the existing fan anti-loosening bolt structure is not stable enough for fixing the fan, which easily causes the fan to fall off, and the disassembly of the fan is also cumbersome and inconvenient to use. The overall idea is as follows:

[0026] In view of the problems existing in the prior art, the utility model provides a fan anti-loosening bolt structure, including an air-conditioning outdoor unit 1 and a motor 11 installed in the air-conditioning outdoor unit 1, an output shaft 12 is provided on the motor 11, a fan 3 is installed on the output shaft 12, a nut 2 is sleeved on the shaft end of the output shaft 12, wherein the air-conditioning outdoor unit 1 is installed with the fan 3, the fan 3 is threadedly fixed to the output shaft 12 through the nut 2, an expansion groove 21 is provided at the rear end of the nut 2, wherein a limiting portion 13 is provided at the rear end of the output shaft 12, the output shaft 12 and the limiting portion 13 are designed as an integral whole, the limiting portion 13 is in the shape of an arc sphere, the diameter of the limiting portion 13 is 3.6 mm, and the nut 2 The diameter of the shaft hole is 3.5mm. When installing the fan 3, the fan 3 is sleeved on the output shaft 12 of the nut 2, and then the nut 2 is rotated and sleeved on the output shaft 12. An expansion groove 21 is provided at the rear end of the nut 2. The diameter of the shaft hole of the nut 2 is 3.5mm, and the diameter of the limiting portion 13 is 3.6mm. During the fixing process of the nut 2, the slotted structure at the end of the nut 2 is slightly deformed and expanded to 3.6mm. After fixing, the shaft hole at the end of the nut 2 is restored to 3.5mm. Even if the nut 2 is loosened during the operation of the air conditioner, the shaft hole of the nut 2 cannot be deformed or enlarged, which can effectively limit the displacement of the nut 2, thereby achieving the effect of preventing the nut 2 from loosening.

[0027] Working principle:

[0028] The first step is to install the fan 3 by sleeve-mounting the fan 3 on the output shaft 12 of the nut 2, and then rotating the nut 2 on the output shaft 12. An expansion slot 21 is provided at the rear end of the nut 2, and the axial hole diameter of the nut 2 is 3.5 mm, and the diameter of the limiting portion 13 is 3.6 mm. During the fixing process of the nut 2, the slotted structure at the end of the nut 2 is slightly deformed and expanded to 3.6 mm. After fixing, the axial hole at the end of the nut 2 is restored to 3.5 mm. Even if the nut 2 is loosened during the operation of the air conditioner, the axial hole of the nut 2 cannot be deformed or enlarged, which can effectively limit the displacement of the nut 2, thereby achieving the effect of preventing the nut 2 from loosening.

[0029] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A fan anti-loosening bolt structure, comprising an air-conditioning outdoor unit (1) and a motor (11) installed in the air-conditioning outdoor unit (1), wherein the motor (11) is provided with an output shaft (12), characterized in that: A fan (3) is mounted on the output shaft (12), and a nut (2) is sleeved on the shaft end of the output shaft (12); The air conditioner outdoor unit (1) is provided with a fan (3), the fan (3) being threadedly fixed to the output shaft (12) via a nut (2), and an expansion groove (21) is provided at the rear end of the nut (2); Wherein, a limiting portion (13) is provided at the rear end of the output shaft (12).

2. The fan anti-loosening bolt structure according to claim 1, characterized in that: The output shaft (12) and the limiting portion (13) are designed as an integral whole.

3. The fan anti-loosening bolt structure according to claim 1, characterized in that: The limiting portion (13) is in the shape of an arcuate sphere.

4. The fan anti-loosening bolt structure according to claim 1, characterized in that: The diameter of the limiting portion (13) is 3.6 mm.

5. The fan anti-loosening bolt structure according to claim 1, characterized in that: The diameter of the shaft hole of the nut (2) is 3.5 mm.

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