A quick assembly fan blade locking device

Abstract

The utility model provides a quick assembly's fan blade locking device relates to the technical field of blade locking structure, include: fan motor pivot, the fan motor pivot is welded with a annular structure's baffle, the fan motor pivot is sleeved with a blade seat, and six blades are integrally formed on the blade seat in annular array shape, the baffle top end surface is welded with six locking rods in annular array shape, and six insertion holes are arranged on the blade seat in annular array shape, and six locking rods are inserted into six insertion holes. In the assembly process of the present application: through the baffle welded on the fan motor pivot, the locking rod cooperates with the insertion hole on the blade seat, the quick location of the blade seat is realized, when installing, only need to sleeve the blade seat on the pivot, and the insertion of the locking rod and the insertion hole can be completed by small angle rotation, greatly saves the assembly time, the upper end of the locking rod is polished into arc structure, when inserting the insertion hole, can improve the insertion smoothness under the arc guidance, reduces the assembly difficulty.

Description

Technical Field

[0001] This utility model belongs to the technical field of fan blade locking structure, and more specifically, it relates to a fan blade locking device for quick assembly. Background Technology

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and transport gas. It is widely used in ventilation, dust removal, cooling, and transportation scenarios, and plays an important role in industry, agriculture, construction, and environmental protection. It mainly consists of a casing, a motor, and an impeller, with the impeller mounted on the motor shaft.

[0003] The existing device has only a single number of locking blocks and locking slots for fan blade locking, and lacks a guiding structure. During installation, the locking protrusions and locking slots need to be aligned repeatedly, which wastes time. Furthermore, the existing device lacks an emergency disassembly structure during disassembly. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a quick-assembly fan blade locking device. This solves the problems of existing devices having a limited number of locking blocks and slots for fan blade locking, lacking a guiding structure, requiring repeated alignment of the locking protrusions and slots during installation, which wastes time; and the lack of an emergency disassembly structure during disassembly.

[0005] The purpose and effect of this utility model, a quick-assembly fan blade locking device, are achieved by the following specific technical means: A quick-assembly fan blade locking device includes a fan motor shaft; a ring-shaped stop is welded onto the fan motor shaft, and a blade holder is sleeved on the fan motor shaft. The blade holder has six blades in a ring array, which are injection molded in one piece; six locking rods are welded in a ring array on the top surface of the stop, and six insertion holes are opened in a ring array on the blade holder. The six locking rods are inserted into the six insertion holes, at which time the blade holder is in a rotationally locked state on the fan motor shaft.

[0006] Furthermore, all six locking rods are cylindrical rod-shaped structures, and the upper end of each of the six locking rods has been polished, resulting in an arc-shaped upper end.

[0007] Furthermore, the upper end of the fan motor shaft is threaded, and a locking nut is threaded to the upper end of the fan motor shaft. An elastic pad with an annular structure is attached to the bottom surface of the locking nut. The elastic pad is made of rubber. When the locking nut is tightened, the elastic pad makes elastic contact with the top surface of the blade seat.

[0008] Furthermore, the outer wall of the locking nut is provided with anti-slip grooves in a ring array, and the anti-slip grooves are semi-cylindrical groove structures.

[0009] Furthermore, the top surface of the locking nut is injection molded with an auxiliary block in a one-time process, and the auxiliary block has a hexagonal structure.

[0010] Furthermore, an auxiliary hole is provided on the front end face of the auxiliary block. The auxiliary hole is a circular hole structure and serves as an emergency disassembly hole for the locking nut.

[0011] Furthermore, the top surface of the stop seat is provided with disassembly grooves in a ring array, and the bottom surface of the blade seat is also provided with disassembly grooves in a ring array. The disassembly grooves on the stop seat and the blade seat are aligned, and the disassembly grooves on the stop seat and the blade seat are both semi-cylindrical groove structures.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the assembly process of this application: the stop and locking rod welded on the fan motor shaft cooperate with the insertion hole on the blade seat to achieve rapid positioning of the blade seat; during installation, the blade seat only needs to be sleeved on the shaft, and the locking rod can be inserted into the insertion hole by rotating at a small angle, which greatly saves assembly time; the upper end of the locking rod is ground into an arc-shaped structure, which can improve the smoothness of insertion and reduce the assembly difficulty when inserting into the insertion hole under the arc guidance.

[0013] Regarding the locking mechanism: the threaded connection and locking nut above the fan motor shaft, along with the rubber elastic pad at the bottom, allow the locking nut to reduce the likelihood of loosening after tightening by contacting the blade seat with the elastic pad and utilizing friction. At the same time, the anti-slip groove on the outer wall of the locking nut prevents slippage during disassembly and assembly, improving disassembly and assembly efficiency. The auxiliary block and auxiliary hole design at the top provide convenience for disassembly under different conditions, avoiding the problem of disassembly difficulties.

[0014] This application incorporates a disassembly groove. The disassembly grooves are aligned on the stop and the blade seat. When the blade seat cannot be disassembled, it can be pried open with a cylindrical rod to achieve emergency disassembly, ensuring the convenience and practicality of the device's later maintenance. Attached Figure Description

[0015] Figure 1 This is an axial view structural schematic diagram of the fan blade locking device for rapid assembly according to this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of the fan blade locking device for quick assembly according to this utility model.

[0017] Figure 3 This is a partial axial view of the fan blade locking device for rapid assembly according to this utility model.

[0018] Figure 4 This is a utility model Figure 3 A schematic diagram of the split-axis view structure.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Fan motor shaft; 101. Stop; 2. Blade holder; 201. Blade; 202. Insertion hole; 3. Locking rod; 4. Locking nut; 401. Anti-slip groove; 402. Auxiliary block; 403. Auxiliary hole; 404. Elastic pad; 5. Disassembly groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1: As shown in the attached document Figure 1 To be continued Figure 4 As shown: This utility model provides a quick-assembly fan blade locking device, including a fan motor shaft 1; a ring-shaped stop 101 is welded onto the fan motor shaft 1, and a blade seat 2 is sleeved on the fan motor shaft 1. The blade seat 2 has six blades 201 molded in a ring array in one injection molding; six locking rods 3 are welded in a ring array on the top surface of the stop 101; six insertion holes 202 are opened in a ring array on the blade seat 2, and the six locking rods 3 are inserted into the six insertion holes 202. At this time, the blade seat 2 is in a rotationally locked state on the fan motor shaft 1. When installing the blade seat 2, the blade seat 2 is directly sleeved onto the fan motor shaft 1, and the six locking rods 3 are inserted into the six cylindrical hole-shaped insertion holes 202. This achieves quick positioning of the blade seat 2. The setting of the six locking rods 3 and the six insertion holes 202 only requires a small angle rotation of the blade seat 2 to complete the insertion of the locking rods 3 into the insertion holes 202, saving time.

[0024] All six locking rods 3 are cylindrical rod-shaped structures. The upper end of each locking rod 3 is polished, and the upper end of each locking rod 3 is arc-shaped. During the process of inserting the locking rod 3 into the socket 202, the arc-shaped structure can improve the smoothness of the insertion between the locking rod 3 and the socket 202.

[0025] The fan motor shaft 1 has a thread at one end, and a locking nut 4 is threaded to the upper end of the fan motor shaft 1. An elastic pad 404 with an annular structure is attached to the bottom surface of the locking nut 4. The elastic pad 404 is made of rubber. When the locking nut 4 is tightened, the elastic pad 404 makes elastic contact with the top surface of the blade seat 2. Under the friction of the elastic pad 404, the probability of the locking nut 4 loosening can be reduced.

[0026] Among them, the outer wall of the locking nut 4 is provided with anti-slip grooves 401 in a ring array. The anti-slip grooves 401 are semi-cylindrical groove structures. When tightening or loosening the locking nut 4, the anti-slip grooves 401 can prevent slippage, thereby improving the assembly and disassembly efficiency of the locking nut 4.

[0027] Among them, the top surface of the locking nut 4 is injection molded with an auxiliary block 402 in one piece. The auxiliary block 402 has a hexagonal structure. When the locking nut 4 cannot be unscrewed by hand, a wrench can be used to hold it in the auxiliary block 402 and rotate it, thus avoiding the difficulty of disassembling the locking nut 4.

[0028] The auxiliary block 402 has an auxiliary hole 403 on its front end face. The auxiliary hole 403 is a circular hole structure and is an emergency disassembly hole for the locking nut 4. When it cannot be disassembled by a wrench, a cylindrical rod can be inserted into the auxiliary hole 403 and rotated to achieve emergency disassembly of the locking nut 4.

[0029] Example 2: Based on Example 1, the top surface of the baffle 101 is provided with a disassembly groove 5 in a ring array, and the bottom surface of the blade seat 2 is also provided with a disassembly groove 5 in a ring array. The disassembly grooves 5 on the baffle 101 and the blade seat 2 are aligned. The disassembly grooves 5 on the baffle 101 and the blade seat 2 are both semi-cylindrical groove structures. When the blade seat 2 cannot be disassembled from the fan motor shaft 1, a cylindrical rod with a diameter slightly smaller than the disassembly groove 5 can be inserted into the disassembly groove 5 to pry it open, thus realizing the emergency disassembly of the blade seat 2.

[0030] Working principle: The blade seat 2 is fitted onto the fan motor shaft 1. Rotating the blade seat 2 causes the locking rod 3 to be inserted into the insertion hole 202. The locking nut 4 is then threaded onto the upper end of the fan motor shaft 1. During disassembly, the locking nut 4 is unscrewed to pull the blade seat 2 off the fan motor shaft 1. If the locking nut 4 cannot be unscrewed by hand, a wrench can be used to engage the auxiliary block 402 and rotate it, thus avoiding difficulty in disassembling the locking nut 4. If the locking nut 4 cannot be disassembled by hand, a cylindrical rod can be inserted into the auxiliary hole 403 and rotated to achieve emergency disassembly of the locking nut 4. If the blade seat 2 cannot be disassembled from the fan motor shaft 1, a cylindrical rod with a diameter slightly smaller than the disassembly groove 5 can be inserted into the disassembly groove 5 and pried.

[0031] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A quick assembly fan blade locking device, characterized by: Includes a fan motor shaft (1); a ring-shaped stop (101) is welded on the fan motor shaft (1), and a blade seat (2) is sleeved on the fan motor shaft (1). The blade seat (2) has six blades (201) in a ring array and is injection molded in one piece; the top surface of the stop (101) is welded with six locking rods (3) in a ring array, and the blade seat (2) has six insertion holes (202) in a ring array. The six locking rods (3) are inserted into the six insertion holes (202). At this time, the blade seat (2) is in a rotating locked state on the fan motor shaft (1); the six locking rods (3) are all cylindrical rod structures, and the upper end of the six locking rods (3) is polished. After polishing, the upper end of the six locking rods (3) is an arc structure.

2. The fan blade locking device for quick assembly as described in claim 1, characterized in that: The fan motor shaft (1) has a thread at one end, and a locking nut (4) is threaded to the upper end of the fan motor shaft (1). An elastic pad (404) with an annular structure is attached to the bottom surface of the locking nut (4). The elastic pad (404) is made of rubber. When the locking nut (4) is tightened, the elastic pad (404) makes elastic contact with the top surface of the blade seat (2).

3. A quick assembly fan blade locking device as claimed in claim 2 wherein: The locking nut (4) has anti-slip grooves (401) arranged in a ring array on its outer wall. The anti-slip grooves (401) are semi-cylindrical groove structures.

4. The quick assembly fan blade locking device of claim 3, wherein: The top surface of the locking nut (4) is injection molded with an auxiliary block (402) in one go. The auxiliary block (402) has a hexagonal structure.

5. The quick assembly fan blade locking device of claim 4, wherein: The auxiliary block (402) has an auxiliary hole (403) on its front end face. The auxiliary hole (403) is a circular hole structure and is an emergency disassembly hole for the locking nut (4).

6. A quick assembly fan blade locking device as claimed in claim 5 wherein: The top surface of the stop (101) is provided with a disassembly groove (5) in an annular array, and the bottom surface of the blade seat (2) is also provided with a disassembly groove (5) in an annular array. The disassembly grooves (5) on the stop (101) and the blade seat (2) are aligned, and the disassembly grooves (5) on the stop (101) and the blade seat (2) are both semi-cylindrical groove structures.

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