Industrial fan with protection function

The mobile protective cover driven by the electrically controlled telescopic rod solves the problem of personnel or objects being removed during the operation of industrial fans, achieving a balance between safety protection and ventilation effect, and ensuring the convenience of cleaning and maintenance of the fans.

CN121383327BActive Publication Date: 2026-03-24JIANGSU KALITE ENERGY SAVING FAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-25
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing industrial fans, when in use, have strong airflow that can easily pull people or objects away, and their fixed protective structures affect ventilation efficiency and ease of maintenance.

Method used

The movable protective cover, driven by an electrically controlled telescopic rod, can be fastened or unfolded as needed, providing an adjustable protective area and ensuring convenient ventilation and maintenance of the fan.

Benefits of technology

It achieves safety protection during fan operation, preventing people or objects from being drawn in, while allowing for cleaning and maintenance without affecting ventilation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an industrial fan with a protection function, and relates to the technical field of industrial plant ventilation, which comprises a fan main body, a protection support base assembly is installed at the bottom of the front side of the fan main body, the protection support base assembly comprises a mounting base, vertical side risers are fixedly welded to the top surface of the mounting base, an electric control telescopic rod is fixedly installed on the inner end surface of the side riser, a threaded rod in a driving component is installed in the side riser, the electric control telescopic rod can push and buckle or unfold the movable protection cover, when buckled, the outer part of the fan cover can be encrypted and protected, not only personnel cannot touch the fan, but also damage caused by large sundries being rolled into the fan can be avoided, when unfolded, the maximum ventilation capacity of the fan main body can be realized, and the protection use or cleaning and maintenance work is not affected, the problem that the protection structure of the fixed structure reduces the ventilation capacity and also affects the cleaning and maintenance of the fan is solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial plant ventilation, and particularly relates to an industrial fan with a protection function. BACKGROUND

[0002] An industrial plant is a house for batch production of industrial products, and often has the characteristics of large space, poor air circulation, and many production line devices. In order to ensure the air circulation inside the industrial plant, a fan needs to be installed to ensure the ventilation effect.

[0003] However, the existing industrial fan is often protected by the inherent cover of the fan. Due to the large wind force, the person or object close to the fan is easily sucked and moved, and is easily sucked into the fan blades, which may cause danger or damage to the fan. However, the fixed structure of the protection structure will affect the cleaning and maintenance of the fan. Since personnel or transport vehicles often move inside the plant, when a larger space is needed, the fixed regional protection structure affects the walking or driving of personnel or transport vehicles, and it is difficult to adjust the size of the protected space. SUMMARY

[0004] The disclosed embodiments relate to an industrial fan with a protection function. The electric control telescopic rod can push and buckle or unfold the movable protective cover to encrypt the outside of the fan cover, and does not affect the protection use or cleaning and maintenance work.

[0005] The first aspect of the present disclosure provides an industrial fan with protection function, which specifically comprises a fan body, a fan cover shell installed outside the fan body, and a protection support base assembly installed at the front bottom of the fan body; the protection support base assembly comprises a mounting base, vertical and fixedly welded side risers on the top surface of the mounting base; the protection support base assembly further comprises movable protection cover shells which are semicircular in structure, cover the outside front side of the fan cover shell when the two movable protection cover shells are buckled together, have two inner clamping grooves on the inner wall of the movable protection cover shell, and have two connecting holes on the bottom of the movable protection cover shell; the inner end surface of the side riser is fixedly installed with an electric control telescopic rod, the inside of the side riser is installed with a threaded rod in the driving component, and the front end surface of the side riser is installed with a pushing assembly; the outer surface of the threaded rod is sleeved with an inner threaded rotating pipe, the front end of the inner threaded rotating pipe is rotatably clamped at the rear end of the side riser, and the rear end of the inner threaded rotating pipe at the lowermost right side is coaxially connected with a driving motor; the pushing assembly comprises a pushing plate and a connecting plate, the pushing plate is connected to the front end surface of the side riser through a scissors-type telescopic frame, the front side of the pushing plate is provided with the connecting plate, the inside of the pushing plate is penetrated by the threaded rod, the outer side bottom of the connecting plate is fastened and connected with a limiting block on the ground, and the front end surface of the connecting plate is rotatably connected with an outer protection plate through a shaft; two clamping rods are fixedly welded on the front end surface of the pushing plate, two insertion holes are formed on the rear end surface of the connecting plate, the positions of the insertion holes correspond to the positions of the clamping rods, electromagnets are arranged in the insertion holes and communicate with an external circuit, and the inside of the scissors-type telescopic frame is penetrated by the threaded rod.

[0006] In at least some embodiments, a driving shaft of the driving motor is provided with a transmission belt, the transmission belt is connected to the outside of the four inner threaded rotating pipes, protruding axial clamping rings are welded on the outside of the front ends of the inner threaded rotating pipes, the axial clamping rings are clamped in the inside of the axial limiting grooves, the inner threaded rotating pipes are meshed with the threaded rods, and a rack plate is welded on the front end of the threaded rod.

[0007] In at least some embodiments, the driving motor, the inner threaded rotating pipe and the threaded rod constitute a driving component.

[0008] In at least some embodiments, the top surface of the mounting base is fixedly welded with a fixed sliding rail, the front and rear sides of the fixed sliding rail are provided with recessed arc-shaped grooves, a sliding block is slidingly clamped on the fixed sliding rail, the protection support base assembly further comprises movable protection cover shells which are semicircular in structure, cover the outside front side of the fan cover shell when the two movable protection cover shells are buckled together, have two inner clamping grooves on the inner wall of the movable protection cover shell, and have two connecting holes on the bottom of the movable protection cover shell.

[0009] In at least some embodiments, an X-shaped through slot is formed in the interior of the outer protective plate, a shaft is fixedly connected to the rear end of the outer protective plate, two gears are fixedly welded to the shaft, the gears are in meshing connection with the rack plate, when the rack plate moves forward and drives the gears to rotate through the meshing of the teeth, the two outer protective plates are driven to rotate towards the middle to achieve closure, the protection of the front side of the movable protective cover is completed at the same time as the forward movement and extension of the scissors-type telescopic frame, the outer protective plate is avoided from being collided by personnel or transport vehicles, and the protection effect is achieved.

[0010] In at least some embodiments, a clamping frame is fixedly welded to the inner end of the electric control telescopic rod, the clamping frame is in a right-angle U-shaped structure and is clamped in the interior of the inner clamping groove, a connecting clasp is fixedly embedded in the rear end surface of the side stand, and an axial limiting groove is formed in the interior of the connecting clasp.

[0011] In at least some embodiments, the base of the fan main body is fixedly connected to the rear side of the mounting base.

[0012] The application provides an industrial fan with a protection function, which has the following beneficial effects:

[0013] In use, the electric control telescopic rod can push and buckle or unfold the movable protective cover, when buckling, the outer part of the fan cover can be encrypted and protected, not only personnel cannot touch the fan of the fan, but also damage caused by large sundries being rolled into the fan can be avoided, when unfolding, the maximum ventilation of the fan main body can be realized, and the protection use or cleaning and maintenance work is not affected.

[0014] In addition, when the push plate is pushed forward by the threaded rod, the outer protective plate is first driven to rotate, when the push rod is inserted into the insertion hole, the push rod is tightly attracted by the electromagnet, so that the forward movement of the threaded rod drives the connecting plate to move forward together, the connecting plate and the outer protective plate are pushed forward until the position is appropriate, and the protection area space can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described in the following description only relate to some embodiments of the application, and are not a limitation on the application.

[0017] In the drawings:

[0018] Figure 1 An initial state structure schematic view of the outer protective plate of the application is shown;

[0019] Figure 2 A rear side view structure schematic view of the application is shown; Figure 1

[0020] Figure 3 ​The rear side view structure schematic diagram of the protective support base assembly of the application is shown.

[0021] Figure 4 The structural schematic diagram in the unfolding process of the mobile protective cover shell of the application is shown.

[0022] Figure 5 The structural schematic diagram of the mobile protective cover shell of the application is shown.

[0023] Figure 6 The structural schematic diagram of the driving component of the application is shown.

[0024] Figure 7 The structural schematic diagram of the driving component of the application is shown. Figure 6 The enlarged structural schematic diagram of A in the application is shown.

[0025] Figure 8 The structural schematic diagram between the outer protective plate and the connecting plate of the application is shown.

[0026] Figure 9 The structural schematic diagram of the outer protective plate of the application is shown.

[0027] Figure 10 The structural schematic diagram of the driving component of the application is shown. Figure 1 The enlarged structural schematic diagram of B in the application is shown.

[0028] Figure 11 The enlarged structural schematic diagram of C in the application is shown. Figure 8

[0029] List of reference signs

[0030] 1, fan main body; 101, fan cover shell;

[0031] 2, protective support base assembly; 21, mounting base; 2101, fixed sliding rail; 22, mobile protective cover shell; 2201, inner clamping groove; 2202, connecting hole;

[0032] 3, side stand; 301, electric control telescopic rod; 3011, clamping frame; 302, connecting clasp; 3021, axial limiting groove;

[0033] 4, driving component; 41, driving motor; 4101, transmission belt; 42, inner threaded rotating tube; 4201, axial clasp; 43, threaded rod; 4301, rack plate;

[0034] 5, outer protective plate; 501, gear;

[0035] 6, limiting block;

[0036] 7, push-moving assembly; 71, push-moving plate; 7101, clamping rod; 7102, scissor-type telescopic frame; 72, connecting plate; 7201, jack. ​DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0038] Embodiment: Please refer to the attached Figure 1 to the attached Figure 11 :

[0039] The application provides an industrial fan with a protection function, which comprises a fan main body 1, a fan cover 101 externally mounted on the fan main body 1, and a protection support base assembly 2 mounted on the front bottom of the fan main body 1. The protection support base assembly 2 comprises a mounting base 21, vertical side standing plates 3 fixedly welded on the top surface of the mounting base 21, and movable protection cover shells 22. The movable protection cover shells 22 are semicircular in structure, and are arranged on the outer front side of the fan cover 101 when buckled together. Two inner clamping grooves 2201 are formed in the inner wall of each movable protection cover shell 22, and two connecting holes 2202 are formed in the bottom of each movable protection cover shell 22. The movable protection cover shells 22 are connected to the sliding blocks through the connecting holes 2202, so that the movable protection cover shells 22 can be buckled or unfolded under the pushing of the electric control telescopic rods 301. When unfolded, the maximum ventilation capacity of the fan main body 1 can be achieved; and when buckled, the outer part of the fan cover 101 can be protected. The inner end surface of each side standing plate 3 is fixedly provided with an electric control telescopic rod 301, the inside of each side standing plate 3 is provided with a threaded rod 43 of a driving component 4, and the front end surface of each side standing plate 3 is provided with a pushing assembly 7. An inner thread rotating pipe 42 is sleeved on the outer part of the threaded rod 43, the front end of the inner thread rotating pipe 42 is rotationally clamped on the rear end of the side standing plate 3, and the rear end of the inner thread rotating pipe 42 on the lowermost right side is coaxially connected with a driving motor 41. The driving motor 41, the inner thread rotating pipe 42 and the threaded rod 43 constitute the driving component 4. The pushing assembly 7 comprises a pushing plate 71 and a connecting plate 72. The pushing plate 71 is connected to the front end surface of the side standing plate 3 through a scissors-type telescopic frame 7102, the front side of the pushing plate 71 is provided with the connecting plate 72, the inside of the pushing plate 71 is penetrated by the threaded rod 43, the outer side bottom of the connecting plate 72 is fastened to the ground and connected with a limiting block 6, and the front end surface of the connecting plate 72 is rotationally connected with an outer protection plate 5 through a shaft. Two clamping rods 7101 are fixedly welded on the front end surface of the pushing plate 71, two insertion holes 7201 are formed on the rear end surface of the connecting plate 72, the positions of the insertion holes 7201 correspond to the positions of the clamping rods 7101, electromagnets are arranged in the insertion holes 7201 and communicate with external circuits, the inside of the scissors-type telescopic frame 7102 is penetrated by the threaded rod 43, when the pushing plate 71 is pushed forward by the threaded rod 43, the outer protection plate 5 is first rotated, when the pushing plate 71 is inserted into the insertion holes 7201, the clamping rods 7101 are tightly adsorbed by the electromagnets, the forward movement of the threaded rod 43 pushes the connecting plate 72 to move forward together, the connecting plate 72 and the outer protection plate 5 are pushed forward until the positions are appropriate, and at this time, the connecting plate 72 is separated from the limiting block 6. When folded, the connecting plate 72 is moved backward under the driving of the threaded rod 43, until the connecting plate 72 is clamped on the front side of the limiting block 6, the connecting plate 72 cannot continue to move backward, the clamping rods 7101 move backward and are separated from the electromagnets, the pushing plate 71 moves backward alone, and the backward movement of the threaded rod 43 drives the outer protection plate 5 to rotate and reset.

[0040] In the embodiments of the present disclosure, as shown in the accompanying Figure 4 and the accompanying Figure 10 , the base of the fan body 1 is fixedly connected to the rear side of the mounting base 21. After the mounting base 21 is mounted to the front side of the base of the fan body 1, the protection structure has a mounting base, and can cooperate with the fan body 1 to provide protection. When the protection structure is not used, the maximum ventilation volume can be ensured, and the air flow in the industrial plant can be ensured.

[0041] In the embodiments of the present disclosure, as shown in the accompanying Figure 3 , the accompanying Figure 4 and the accompanying Figure 5 , the top surface of the mounting base 21 is fixedly welded with a fixed sliding rail 2101. The front and rear sides of the fixed sliding rail 2101 are provided with concave arc-shaped grooves, and a sliding block is slidingly connected to the fixed sliding rail 2101. The sliding block cooperates with the fixed sliding rail 2101 to enable the movable protection cover 22 to move left and right, so as to realize external protection or opening of the fan cover 101, without affecting the protection use or cleaning and maintenance work.

[0042] In the embodiments of the present disclosure, as shown in the accompanying Figure 7 and the accompanying Figure 8 , the inner end of the electric control telescopic rod 301 is fixedly welded with a clamping frame 3011. The clamping frame 3011 is in a right-angle U-shaped structure and is clamped in the inner clamping groove 2201. The rear end surface of the side stand 3 is fixedly embedded with a connecting clamping ring 302. The inner part of the connecting clamping ring 302 is provided with an axial limiting groove 3021. The connecting clamping ring 302 enables the inner threaded rotating pipe 42 to rotate around the axis, while ensuring the movement of the threaded rod 43. After the electric control telescopic rod 301 is started by the external circuit control end, the movable protection cover 22 can be more stably pushed to move through the clamping frame 3011, so as to realize the switching of the external protection or opening state of the fan cover 101. When assembling, the clamping frame 3011 is clamped into the inner clamping groove 2201 in the front and rear directions, and the assembly can be completed, which is convenient and fast.

[0043] In the embodiments of the present disclosure, as shown in the accompanying Figure 6 , the accompanying Figure 7 and the accompanying Figure 10As shown, the driving shaft of the driving motor 41 is provided with a transmission belt 4101, the transmission belt 4101 is connected outside the four inner threaded rotating pipes 42, the front end outside of the inner threaded rotating pipe 42 is welded with a protruding axial clamping ring 4201, the axial clamping ring 4201 is clamped inside the axial limiting groove 3021, and the inner threaded rotating pipe 42 is engaged and connected with the threaded rod 43, the front end of the threaded rod 43 is welded with a rack plate 4301, when the driving motor 41 is started through the external circuit control end, the four inner threaded rotating pipes 42 are driven to rotate synchronously through the transmission belt 4101, the threaded rod 43 is limited by the side stand 3 and cannot rotate, so that the rotation of the inner threaded rotating pipe 42 is converted into movement to realize forward and backward translation, and the rack plate 4301 is pulled to translate, so that the driving force is output.

[0044] In the embodiment of the present disclosure, as shown in the accompanying Figure 9 and the accompanying Figure 11 As shown, the inside of the outer protective plate 5 is provided with an X-shaped through groove, the rear end of the outer protective plate 5 is fixedly connected with a shaft, two gears 501 are fixedly welded on the shaft, the gears 501 are engaged and connected with the rack plate 4301, when the rack plate 4301 moves forward, the gears 501 are driven to rotate through the tooth engagement, so that the two outer protective plates 5 are driven to rotate to the middle to realize closing, and the protection of the front side of the movable protective cover 22 is completed at the same time when the scissors-type telescopic frame 7102 moves forward and extends, so that the outer protective plate 5 is prevented from being collided by personnel or a transport vehicle, and the protection effect is achieved, and the warning effect of the protection area can be improved by additionally installing a lamp strip in the X-shaped through groove.

[0045] The working principle of the embodiment is that the movable protective cover 22 can be buckled under the pushing of the electric control telescopic rod 301, and the outer part of the fan cover 101 is encrypted and protected.

[0046] When the driving motor 41 is started through the external circuit control end, the four inner threaded rotating pipes 42 are driven to rotate synchronously through the transmission belt 4101, the threaded rod 43 realizes forward and backward translation and drives the two outer protective plates 5 to rotate through engagement, after the threaded rod 43 is pushed to the clamping rod 7101 and is inserted into the insertion hole 7201, the clamping rod 7101 is tightly adsorbed through the electromagnet, so that the forward movement of the threaded rod 43 pushes the connecting plate 72 to move forward together, the connecting plate 72 and the outer protective plate 5 are pushed forward, until the position is appropriate, and the protection of the outer part of the fan main body 1 is completed.

[0047] In this paper, the following points need attention:

[0048] 1. The drawings of the embodiment of the present disclosure only relate to the structures involved in the embodiment of the present disclosure, and other structures can be referred to the general design.

[0049] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0050] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An industrial fan with protective functions, comprising: The fan body (1) is equipped with a fan cover (101) on the outside of the fan body (1), and a protective support base assembly (2) is installed on the bottom front side of the fan body (1). The protective support base assembly (2) is characterized in that the protective support base assembly (2) includes a mounting base (21), and the top surface of the mounting base (21) is vertically and fixedly welded with side plates (3). The protective support base assembly (2) also includes a movable protective cover (22), which is a semi-circular structure. When the two movable protective covers (22) are fastened together, they cover the front side of the fan cover (101). The inner wall of the movable protective cover (22) is provided with two inner slots (2201), and the bottom of the movable protective cover (22) is provided with two connecting holes (2202). An electrically controlled telescopic rod (301) is fixedly installed on the inner end face of the side plate (3). A threaded rod (43) in the drive component (4) is installed inside the side plate (3), and a pushing component (7) is installed on the front end face of the side plate (3). An internal threaded tube (42) is sleeved on the outside of the threaded rod (43). The front end of the internal threaded tube (42) is rotatably engaged with the rear end of the side plate (3), and the rear end of the internal threaded tube (42) at the lower right is coaxially connected to a drive motor (41). The pushing assembly (7) includes a pushing plate (71) and a connecting plate (72). The pushing plate (71) is connected to the front end of the side plate (3) by a scissor-type telescopic frame (7102). The connecting plate (72) is set on the front side of the pushing plate (71). The interior of the pushing plate (71) is penetrated by a threaded rod (43). The bottom of the outer side of the connecting plate (72) is fastened to a limit block (6) on the ground. The front end of the connecting plate (72) is rotatably connected to an outer protective plate (5) via a shaft. The front end face of the push plate (71) is fixedly welded with two clamps (7101), and the rear end face of the connecting plate (72) is provided with two insertion holes (7201). The position of the insertion holes (7201) corresponds to the position of the clamps (7101). An electromagnet is installed inside the insertion hole (7201) and it is connected to the external circuit. The inside of the scissor-type telescopic frame (7102) is penetrated by a threaded rod (43). The drive motor (41), the internal threaded tube (42), and the threaded rod (43) constitute the drive component (4). The drive shaft of the drive motor (41) is provided with a transmission belt (4101), which is connected to the outside of four internal threaded tubes (42). The front end of the internal threaded tubes (42) is welded with a protruding axial retaining ring (4201), which is engaged in the axial limiting groove (3021). The internal threaded tubes (42) are meshed with the threaded rod (43), and the front end of the threaded rod (43) is welded with a rack plate (4301). The outer protective plate (5) has an X-shaped through groove inside. The rear end of the outer protective plate (5) is fixedly connected to a shaft, and two gears (501) are fixedly welded on the shaft. The gears (501) mesh with the rack plate (4301).

2. An industrial fan with protective function according to claim 1, characterized in that, The base of the fan body (1) is fixedly connected to the rear side of the mounting base (21).

3. An industrial fan with protective function according to claim 2, characterized in that, The top surface of the mounting base (21) is fixedly welded with a fixed slide rail (2101). The front and rear sides of the fixed slide rail (2101) are provided with concave arc grooves, and a slider is slidably engaged on the fixed slide rail (2101).

4. An industrial fan with protective function according to claim 1, characterized in that, The inner end of the electrically controlled telescopic rod (301) is fixedly welded with a snap-fit ​​bracket (3011). The snap-fit ​​bracket (3011) has a right-angled U-shaped structure and is snapped into the inner slot (2201). The rear end face of the side plate (3) is fixedly embedded with a connecting snap ring (302). An axial limiting groove (3021) is opened inside the connecting snap ring (302).

Citation Information

Patent Citations

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    CN219452477U

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