High-safety industrial ceiling fan

By integrating the fan blades and mounting base into one unit and employing a combination of snap rings, clamping plates, and bolts, the safety hazards caused by ceiling fan vibration are resolved, improving the safety and heat dissipation effect of the ceiling fan and simplifying the maintenance and cleaning process.

CN120798841APending Publication Date: 2025-10-17ZHEJIANG XIANFENG ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202511122983.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

In the existing technology, when the ceiling fan is working, the screws will produce continuous vibration, causing the screws to loosen, resulting in a significant decrease in the stability of the connection between the ceiling fan and the positioning plate. The loose screws will cause the ceiling fan and the screws to loosen, causing the screws to fall off and injure the staff below, posing a major safety hazard.

Method used

By integrating the fan blades and mounting base into one unit and employing a combination of snap rings, clamping plates, and bolts, a stable connection between the mounting base and the housing is achieved, reducing the impact of vibration. Furthermore, the heat dissipation effect is improved by incorporating heat dissipation fins with varying cross-sectional areas.

Benefits of technology

It reduces the risk of ceiling fans falling, improves the safety and stability of ceiling fans, enhances heat dissipation, and is easy and quick to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a high-safety industrial ceiling fan which comprises a shell and a hanging rod, a motor is arranged on the shell, the high-safety industrial ceiling fan further comprises a mounting seat and a plurality of fan blades integrally arranged on the mounting seat, a limiting hole is formed in the mounting seat, a limiting block is arranged on an output shaft of the motor, an inserting block is arranged on the mounting seat, and a rotating seat is rotationally connected to the shell; a first inserting groove is formed in the rotating base, a first clamping groove is formed in the inserting block, a second clamping groove is formed in the rotating base, when the inserting block is clamped into the first inserting groove, the first clamping groove and the second clamping groove are spliced to form an annular groove, and a clamping spring is arranged in the annular groove. The fan blades and the mounting base are integrally arranged, the mounting base abuts against the inner walls of the first clamping grooves and the second clamping grooves through the clamping springs to achieve mounting and positioning on the shell, vibration generated when the ceiling fan is used has small influence on connection between the mounting base and the shell, and therefore the risk that the ceiling fan falls down is reduced, and potential safety hazards existing when the industrial ceiling fan is used are reduced; and the use safety of the ceiling fan is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial ceiling fans, in particular to a high-safety industrial ceiling fan. BACKGROUND

[0002] Ceiling fans are widely used as heat dissipation devices in daily life and industrial production. They are deeply loved by people because of their simple mechanical principle and high heat dissipation effect. In particular, in large industrial production processes, the cooling effect of air conditioners is greatly reduced in large workshops due to the large space. However, the installation of large ceiling fans can achieve good heat dissipation effect. Therefore, ceiling fans are widely used as heat dissipation tools in production processes.

[0003] For example, the utility model patent with the patent announcement number CN220337105U discloses a light industrial ceiling fan with a stop structure, which comprises an upper shell and a lower shell. The bottom surface of the lower shell is provided with a plurality of positioning plates. The top surface of each positioning plate is connected to the fan blade through a screw. The utility model further comprises a driving assembly, which is arranged in the inner cavity of the upper shell and the lower shell. The top surface of the driving assembly is connected to the top surface of the inner cavity of the upper shell. The output end of the driving assembly is connected to the bottom surface of the inner cavity of the lower shell. The driving assembly is used to drive the lower shell to rotate. In addition, the utility model also comprises a stop assembly, which is arranged in the inner cavity of the lower shell. The top surface of the stop assembly is fixedly connected to the driving assembly. The stop assembly is used to stop the lower shell.

[0004] The above-mentioned industrial ceiling fan has the problem that the ceiling fan will produce continuous vibration during work, which can cause the screw to gradually loosen, resulting in a significant decrease in the connection stability between the ceiling fan and the positioning plate. Once the screw falls off, the fan blade may fall from the roof and injure the workers below, which poses a great safety hazard and needs to be improved. SUMMARY

[0005] In order to reduce the safety hazards existing in the use of industrial ceiling fans, the present application provides a high-safety industrial ceiling fan.

[0006] The high-safety industrial ceiling fan provided by the present application adopts the following technical scheme:

[0007] The utility model provides a high security industrial ceiling fan, including the shell and the boom on the shell, be equipped with motor on the shell, still include mounting seat and a plurality of fan blade of integral mounting seat on, the mounting seat is located below the shell, the mounting seat is equipped with the limit hole, the output shaft of motor is equipped with the limit block, the limit hole is inserted for the limit block, the mounting seat is equipped with a plurality of insertion piece, a plurality of insertion piece is distributed in the circumferential direction around the outer periphery of limit hole, the rotating seat is rotatably connected on the shell, the rotating seat is located on the outside of shell, the rotating seat is equipped with the insertion groove one for the insertion piece insertion on the outer side wall away from the shell, the insertion piece is equipped with the clamping groove one on the outer side wall away from the limit hole, the rotating seat is equipped with the clamping groove two on the outer side wall away from the shell, when the insertion piece is inserted into the insertion groove one, the clamping groove one and the clamping groove two are spliced and form the ring groove, the ring groove is equipped with the clamping spring.

[0008] Through the above technical scheme, the fan blade and the mounting seat are integrally arranged, the mounting seat is abutted against the inner walls of the clamping groove one and the clamping groove two through the clamping spring to be mounted and positioned on the shell, the vibration generated during the use of the ceiling fan has little influence on the connection between the mounting seat and the shell, thereby reducing the risk of falling of the ceiling fan, reducing the safety hazards existing during the use of the industrial ceiling fan, and improving the safety of the use of the ceiling fan.

[0009] Optionally, the mounting seat is provided with an abutting piece, the abutting piece is located below the mounting seat and on both sides of the limit hole, a bolt is threaded through the abutting piece, the bolt passes through the limit block and the two abutting pieces, and a nut is threadedly connected to the bolt and abuts against one side of the abutting piece away from the limit block.

[0010] Through the above technical scheme, the mounting seat and the output shaft of the motor are fixed through the abutment of the bolt, the limit block and the abutting piece, which is more rigid than the insertion and positioning between the limit block and the limit hole, reduces the relative motion gap, improves the transmission efficiency, and reduces the influence of processing errors, such as the size of the limit hole being larger than the size of the limit block, and improves the fault tolerance rate of the ceiling fan processing.

[0011] Optionally, a groove is formed in the lower end surface of the limit block, and the groove penetrates the limit block in the vertical direction of the distribution direction of the abutting piece.

[0012] By adopting the technical scheme, the recess is arranged, when the nut abuts against the abutting piece, the nut and the head of the bolt abut against the two abutting pieces respectively, and then the abutting pieces are pressed to abut against the pressing limiting blocks, because of the arrangement of the recess, the limiting blocks and the abutting pieces can be deformed towards the direction close to the recess, the restoring force of the abutting pieces abuts against the nut and the head of the bolt, so that the threads on the nut and the bolt abut against each other, the nut is prevented from loosening, and the stability of the fixed connection between the mounting seat and the motor output shaft is improved.

[0013] Optionally, the housing is further rotationally connected with a transmission seat, the transmission seat is located above the rotating seat, a plurality of heat dissipation fins are circumferentially arranged on the transmission seat, the cross-sectional area of the plurality of heat dissipation fins gradually decreases along the rotating direction of the output shaft of the motor, adjacent heat dissipation fins and the housing are spliced to form a second insertion slot, the second insertion slot is used for inserting the insertion block, the transmission seat and adjacent heat dissipation fins are spliced to form a first through hole, a receiving cavity is formed in the lower end surface of the housing, the motor is located in the receiving cavity, a second through hole is formed in the outer side wall of the housing, and the second through hole is in communication with the receiving cavity.

[0014] By adopting the technical scheme, when the output shaft of the motor drives the mounting seat to rotate, the fan blades drive the surrounding airflow to flow, the insertion block on the mounting seat abuts against the heat dissipation fins and drives the transmission seat to rotate, because the cross-sectional area of the heat dissipation fins gradually decreases along the rotating direction of the output shaft of the motor, the heat dissipation fins with smaller area first contact the airflow to reduce the initial resistance, then the heat dissipation fins with larger area further disturb the air to increase the flow rate of the airflow in the space between the heat dissipation fins, enhance the heat exchange with the surface of the heat dissipation fins, the first through hole and the second through hole are in communication with the air in the receiving cavity and the outside of the housing, the high-temperature air generated by the operation of the motor in the receiving cavity is discharged through the first through hole and the second through hole, the external cold air is supplemented into the receiving cavity under the action of the airflow driven by the heat dissipation fins, and a continuous convection circulation is formed, so that the heat dissipation effect is improved.

[0015] Optionally, a first mounting groove is formed in the upper end surface of the housing, the first mounting groove is used for clamping the transmission seat, the rotating seat comprises a seat body and a plurality of extension pieces arranged on the seat body, a second mounting groove is formed in the lower end surface of the housing, the second mounting groove is used for clamping the seat body, the seat body is rotationally connected in the second mounting groove, the plurality of extension pieces are circumferentially distributed on the outer side of the seat body, the first insertion slot is formed by splicing the seat body and adjacent extension pieces, a recess is formed in the extension piece, a protruding column is arranged on the extension piece and located in the recess, an extension block is arranged on the heat dissipation fin, the recess is used for clamping the extension block, and a positioning hole is formed in the extension block and used for penetrating the protruding column.

[0016] By adopting the above technical scheme, when installing the ceiling fan, the transmission seat is clamped into the installation groove 1, then the seat body is clamped into the installation groove 2, and the extension piece is clamped between the adjacent heat dissipation fins, then the seat body is rotated, so that the extension block is clamped into the accommodation groove, and the convex column passes through the positioning hole, and the positioning between the transmission seat and the seat body is realized by abutting the inner wall of the positioning hole, then the mounting seat is moved, so that the plug block is inserted into the plug slot 1 and the plug slot 2, then the clamping spring is clamped into the ring groove, and the installation of the mounting seat, the transmission seat and the rotating seat is completed, and then the bolt passes through the abutting piece and the limiting block and is twisted to fix the mounting seat and the output shaft of the motor, and the convex column is prevented from being separated from the positioning hole by abutting the heat dissipation fins and the extension piece, so that the operation is convenient and fast.

[0017] When the ceiling fan needs to be cleaned or repaired, only the nut is twisted, the nut and the bolt are removed, and then the clamping spring is taken out, so that the mounting seat and the rotating seat can be taken out in sequence for replacement or cleaning, and the motor in the accommodating cavity can also be repaired, so that the ceiling fan is more convenient to disassemble, repair and clean.

[0018] In summary, the present application has at least one of the following beneficial technical effects:

[0019] 1. The fan blade and the mounting seat are integrally arranged, the mounting seat is abutted against the inner wall of the clamping groove 1 and the clamping groove 2 to realize the installation and positioning on the shell, the vibration generated during the use of the ceiling fan has little effect on the connection between the mounting seat and the shell, thereby reducing the risk of falling of the ceiling fan, reducing the safety hazard during the use of the industrial ceiling fan, and improving the safety of the use of the ceiling fan;

[0020] 2. The abutting piece and the groove are arranged, so that the threads on the nut and the bolt abut against each other, the nut is prevented from loosening, and the stability of the fixed connection between the mounting seat and the output shaft of the motor is improved;

[0021] 3. By arranging the heat dissipation fins with regularly changed cross-sectional area, the flow rate of airflow in the space between the heat dissipation fins is improved, the heat exchange with the surface of the heat dissipation fins is enhanced, a continuous convection circulation is formed, and the heat dissipation effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole schematic view of the embodiment of the present application.

[0023] Figure 2 It is an exploded structure view of the embodiment of the present application.

[0024] Figure 3 It is Figure 2 It is an enlarged view of the middle A part, mainly showing the structure of the accommodating cavity, the motor, the limiting block and the groove.

[0025] Figure 4 It is a structure schematic view of the part of the embodiment of the present application, mainly showing the structure of the bolt and the nut.

[0026] Figure 5 It is a partial structural schematic view of the embodiment of the application, mainly showing the structure of mounting slot one and mounting slot two.

[0027] Figure 6 It is a partial structural schematic view of the embodiment of the application, mainly showing the structure of the let-in slot and the protruding column.

[0028] Figure 7 It is a partial structural schematic view of the embodiment of the application, mainly showing the structure of the through hole one, the positioning hole and the extension block. Figure 1

[0029] Figure 8 It is a partial structural schematic view of the embodiment of the application, mainly showing the structure of the through hole one, the positioning hole and the extension block.

[0030] The reference signs are as follows: 1, housing; 11, accommodating cavity; 12, through hole two; 13, mounting slot two; 14, mounting slot one; 2, hanging rod; 3, mounting seat; 31, limiting hole; 4, fan blade; 5, motor; 6, limiting block; 61, groove; 7, abutting piece; 8, bolt; 9, nut; 10, plug-in block; 101, clamping groove one; 15, rotating seat; 151, seat body; 152, extension piece; 1521, clamping groove two; 1522, let-in slot; 16, insertion slot one; 17, ring groove; 18, clamping spring; 19, protruding column; 20, transmission seat; 21, heat dissipation fin; 22, insertion slot two; 23, through hole one; 24, extension block; 241, positioning hole. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying drawings. Figures 1-8 The application will be further described in detail.

[0032] The embodiment of the application discloses a high-safety industrial ceiling fan. Referring to Figures 1-3 The high-safety industrial ceiling fan comprises a housing 1, a hanging rod 2, a mounting seat 3 and a plurality of fan blades 4, the hanging rod 2 is located above the housing 1 and is fixedly connected with the housing 1, the lower end surface of the housing 1 is provided with an accommodating cavity 11, a plurality of through holes two 12 are formed in the outer side wall of the housing 1, the plurality of through holes two 12 are uniformly and spacedly distributed in the circumferential direction around the outer periphery of the housing 1, the through hole two 12 is in communication with the accommodating cavity 11, the housing 1 is fixedly provided with a motor 5, the motor 5 is located in the accommodating cavity 11, the axis of the output shaft of the motor 5 is vertically arranged, the lower end of the output shaft of the motor 5 is fixedly provided with a limiting block 6, the lower end surface of the limiting block 6 is provided with a groove 61, and the groove 61 horizontally penetrates the limiting block 6.

[0033] Referring to Figures 1-4 ​The mounting seat 3 is located below the shell 1, a plurality of fan blades 4 are integrally fixed on the mounting seat 3, and the plurality of fan blades 4 are uniformly and spacedly distributed around the outer periphery of the mounting seat 3, a limiting hole 31 is formed in the mounting seat 3 and vertically penetrates the mounting seat 3, the limiting hole 31 is used for inserting the limiting block 6, and two abutting pieces 7 are fixed on the mounting seat 3, the two abutting pieces 7 are located below the mounting seat 3 and are respectively located on the two sides of the limiting hole 31, and the distribution direction of the two abutting pieces 7 is perpendicular to the penetration direction of the groove 61, a bolt 8 is arranged on the abutting piece 7, the bolt 8 horizontally penetrates the limiting block 6 and the two abutting pieces 7, a nut 9 is threadedly connected on the bolt 8, and the nut 9 abuts against one side of the abutting piece 7 away from the limiting block 6.

[0034] Referring to Figures 1-6 A plurality of plug blocks 10 are fixed on the mounting seat 3 and are uniformly and spacedly distributed around the outer periphery of the limiting hole 31, a clamping groove 101 is formed in the outer side wall of each plug block 10 away from the limiting hole 31 and penetrates the plug block 10 in the rotation direction of the output shaft of the motor 5, a mounting groove 13 is formed in the lower end face of the shell 1 and is arranged around the outer periphery of the accommodating cavity 11 and penetrates the shell 1 away from the accommodating cavity 11, a rotating seat 15 is rotatably connected to the shell 1 and is located on the outer side of the shell 1, the rotating seat 15 comprises a seat body 151 and a plurality of extension pieces 152, the mounting groove 13 is used for clamping the seat body 151, when the seat body 151 is clamped in the mounting groove 13, the seat body 151 is rotatably connected in the mounting groove 13, and the rotation axis of the seat body 151 coincides with the axis of the output shaft of the motor 5, the plurality of extension pieces 152 are located on the side of the seat body 151 away from the shell 1 and are uniformly and spacedly distributed around the outer periphery of the seat body 151, and the extension pieces 152 are fixedly connected with the seat body 151.

[0035] Referring to Figures 1-7 The adjacent extension pieces 152 and the seat body 151 are spliced to form a plug groove 16, the number and position of the plug groove 16 correspond to the number and position of the plug block 10, the plug groove 16 is used for clamping the plug block 10, a clamping groove 1521 is formed in the outer side wall of each extension piece 152 away from the seat body 151 and penetrates the extension piece 152 in the rotation direction of the output shaft of the motor 5, when the plug block 10 is clamped in the plug groove 16, a ring groove 17 is formed by splicing the plurality of clamping grooves 101 and the clamping grooves 1521, and a clamping spring 18 is arranged in the ring groove 17.

[0036] Referring to Figures 1-7 A giving way groove 1522 is formed in the outer side wall of each extension piece 152, the giving way grooves 1522 are located on the same side of the extension piece 152 and penetrate the extension piece 152 upwardly, a convex column 19 is fixed on each extension piece 152 and is located in the giving way groove 1522.

[0037] Referring to Figures 1-8 , the upper end surface of the shell 1 is provided with a mounting groove one 14, the mounting groove one 14 is arranged around the outer periphery of the boom 2, and the mounting groove one 14 penetrates the shell 1 away from the boom 2, the shell 1 is further rotationally connected with a transmission seat 20, the mounting groove one 14 is provided for the transmission seat 20 to be clamped in, when the transmission seat 20 is clamped in the mounting groove one 14, the transmission seat 20 is rotationally connected in the mounting groove one 14, and the rotation axis of the transmission seat 20 and the rotation axis of the seat body 151 coincide, a plurality of heat dissipation fins 21 are fixed on the transmission seat 20, the plurality of heat dissipation fins 21 are located on the outside of the shell 1 and below the transmission seat 20, and the plurality of heat dissipation fins 21 are uniformly and spaced distributed around the outer periphery of the shell 1, the number and position of the heat dissipation fins 21 correspond to the number and position of the extension piece 152 one by one, the area of the radial cross section of the plurality of heat dissipation fins 21 along the transmission seat 20 gradually decreases in the rotation direction of the output shaft of the motor 5, the adjacent heat dissipation fins 21 and the shell 1 are spliced to form a plug groove two 22, the plug groove two 22 is provided for the plug 10 to be inserted, and the transmission seat 20 and the adjacent heat dissipation fins 21 are spliced to form a through hole one 23.

[0038] Referring to Figures 1-8 The lower end of each heat dissipation fin 21 is fixed with an extension block 24, the accommodation groove 1522 is provided for the extension block 24 to be clamped in, and the extension block 24 is provided with a positioning hole 241, and the positioning hole 241 is provided for the protruding column 19 to be arranged.

[0039] In actual use, when the ceiling fan is installed, the transmission seat 20 is clamped into the mounting groove one 14, then the seat body 151 is clamped into the mounting groove two 13, at the same time, the extension piece 152 is clamped between the adjacent heat dissipation fins 21, then the seat body 15 is rotated, so that the extension block 24 is clamped into the accommodation groove 1522, and the protruding column 19 is arranged in the positioning hole 241, and the protruding column 19 abuts against the inner wall of the positioning hole 241 to realize the positioning between the transmission seat 20 and the seat body 151, then the mounting seat 3 is moved to make the plug 10 inserted into the plug groove one 16 and the plug groove two 22, then the clamping spring 18 is clamped into the ring groove 17 to complete the installation of the mounting seat 3, the transmission seat 20 and the seat body 15, and then the bolt 8 is arranged to abut against the limiting block 6 and the limiting block 6, and the nut 9 is twisted to realize the fixation between the mounting seat 3 and the output shaft of the motor 5, and the plug 10 abuts against the heat dissipation fin 21 and the extension piece 152 to avoid the protruding column 19 from being separated from the positioning hole 241, which is convenient and fast.

[0040] When the ceiling fan needs to be cleaned or repaired, only the nut 9 is twisted, the nut 9 and the bolt 8 are removed, then the clamping spring 18 is taken out, and then the mounting seat 3 is moved away from the shell 1 to take down the mounting seat 3, then the seat body 15 is rotated to make the protruding column 19 separated from the positioning hole 241, then the seat body 151 is moved to the shell 1 to take down the seat body 15 for replacement or cleaning, and the motor 5 in the accommodation cavity 11 can also be repaired, so that the ceiling fan is more convenient to disassemble, repair and clean.

[0041] The implementation principle of the high-safety industrial ceiling fan according to an embodiment of the application is as follows:

[0042] The fan blade 4 and the mounting seat 3 are integrally arranged, the mounting seat 3 is abutted against the inner walls of the first clamping groove 101 and the second clamping groove 1521 through the clamping spring 18 to realize the mounting and positioning on the shell 1, the vibration generated during the use of the ceiling fan has little influence on the connection between the mounting seat 3 and the shell 1, thereby reducing the risk of falling of the ceiling fan, reducing the safety hidden danger existing during the use of the industrial ceiling fan, and improving the safety of the use of the ceiling fan.

[0043] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A high-safety industrial ceiling fan, comprising a housing (1) and a suspension rod (2) provided on the housing (1), wherein the housing (1) is provided with a motor (5), characterized in that: The motor (5) further comprises a mounting seat (3) and a plurality of fan blades (4) integrally arranged on the mounting seat (3), wherein the mounting seat (3) is located below the housing (1), a limiting hole (31) is provided on the mounting seat (3), a limiting block (6) is provided on the output shaft of the motor (5), the limiting hole (31) is for the limiting block (6) to be inserted, a plurality of inserting blocks (10) are provided on the mounting seat (3), and the plurality of inserting blocks (10) are circumferentially distributed around the outer periphery of the limiting hole (31), a rotating seat (15) is rotatably connected to the housing (1), and the ...). ) is located on the outside of the shell (1), a slot one (16) for inserting the plug (10) is provided on the rotating seat (15), a clamping slot one (101) is provided on the outer wall of the plug (10) away from the limiting hole (31), and a clamping slot two (1521) is provided on the outer wall of the rotating seat (15) away from the shell (1), when the plug (10) is inserted into the slot one (16), the clamping slot one (101) and the clamping slot two (1521) are spliced ​​to form an annular groove (17), and a retaining spring (18) is provided in the annular groove (17).

2. The high-security industrial ceiling fan according to claim 1, characterized in that: The mounting seat (3) is provided with a tightening piece (7), the tightening piece (7) is located below the mounting seat (3) and on both sides of the limiting hole (31), a bolt (8) is passed through the tightening piece (7), the bolt (8) passes through the limiting block (6) and the two tightening pieces (7), a nut (9) is threadedly connected to the bolt (8), and the nut (9) presses against the side of the tightening piece (7) away from the limiting block (6).

3. The high-security industrial ceiling fan according to claim 2, characterized in that: A groove (61) is provided on the lower end surface of the limiting block (6), and the groove (61) passes through the limiting block (6) in a direction perpendicular to the distribution direction of the abutting piece (7).

4. The high-security industrial ceiling fan according to claim 2, characterized in that: The housing (1) is also rotatably connected to a transmission seat (20), the transmission seat (20) is located above the rotating seat (15), and a plurality of heat dissipation fins (21) are provided on the circumference of the transmission seat (20), and the cross-sectional area of ​​the plurality of heat dissipation fins (21) gradually decreases along the rotation direction of the output shaft of the motor (5). The adjacent heat dissipation fins (21) and the housing (1) are spliced ​​to form a slot 2 (22), and the slot 2 (22) is for the insertion of the plug (10). The transmission seat (20) and the adjacent heat dissipation fins (21) are spliced ​​to form a through hole 1 (23). The lower end surface of the housing (1) is provided with an accommodating cavity (11), and the motor (5) is located in the accommodating cavity (11). The outer wall of the housing (1) is provided with a through hole 2 (12), and the through hole 2 (12) is connected to the accommodating cavity (11).

5. The high-security industrial ceiling fan according to claim 4, characterized in that: The upper end surface of the housing (1) is provided with a first mounting groove (14), the first mounting groove (14) is for the transmission seat (20) to be snapped in, the rotating seat (15) comprises a seat body (151) and a plurality of extension pieces (152) provided on the seat body (151), the lower end surface of the housing (1) is provided with a second mounting groove (13), the second mounting groove (13) is for the seat body (151) to be snapped in, the seat body (151) is rotatably connected in the second mounting groove (13), and the plurality of extension pieces (152) are circumferentially distributed on the seat body (151). On the outside of the heat dissipation fin (21), the slot 1 (16) is formed by splicing the seat body (151) and the adjacent extension piece (152), a clearance groove (1522) is provided on the extension piece (152), a boss (19) is provided on the extension piece (152), and the boss (19) is located in the clearance groove (1522), an extension block (24) is provided on the heat dissipation fin (21), the clearance groove (1522) is for the extension block (24) to be snapped in, and a positioning hole (241) is provided on the extension block (24) for the boss (19) to pass through.

Citation Information

Patent Citations

  • Light industrial ceiling fan with brake structure

    CN220337105U