Glass fiber reinforced plastic fan suitable for corrosive gas environment

Abstract

The utility model relates to the technical field of glass fiber reinforced plastic fans, in particular to a glass fiber reinforced plastic fan suitable for corrosive gas environments, which comprises a fan body, the fan body comprises a shell and fan blades, four corners of two ends of the shell are connected with mounting shafts, and two ends of the shell are provided with filtering mechanisms. A dustproof mechanism is arranged on the side, away from the shell, of the filtering mechanism and comprises a mounting plate, a first abutting plate is arranged on one side of the mounting plate, two telescopic rods are symmetrically connected to the side, away from the mounting plate, of the first abutting plate, and a telescopic dustproof cover is connected to the side, away from the mounting plate, of the first abutting plate. The end, away from the first abutting plate, of the telescopic dust cover is connected with a second abutting plate, a protective shell is arranged on the outer side of the telescopic rod, when the fan is closed or idle, the filter plate can be protected, the situation that dust, dust and other impurities are attached to the filter plate, and consequently the service life and the filtering effect of the filter plate are affected is avoided, the frequency of replacing the filter plate by a user is reduced, and the user experience is improved. Therefore, the use cost of the fan is saved.

Description

A fiberglass fan suitable for use in corrosive gas environments Technical Field

[0001] This utility model relates to the field of fiberglass fan technology, and specifically discloses a fiberglass fan suitable for use in corrosive gas environments. Background Technology

[0002] Fiberglass fans are fans made of fiberglass materials. They have the same appearance and dimensions as steel fans, but the outer shell and impeller are made of fiberglass. The main feature of fiberglass fans is their corrosion resistance. They can withstand harsh environments such as acids and alkalis and are a type of corrosion-resistant fan. Fiberglass fans are widely used in industrial ventilation, agricultural ventilation, building ventilation, sewage treatment and liquid transportation.

[0003] Chinese patent CN217207044U discloses a fiberglass fan suitable for use in corrosive gas environments, including a frame, and a filter assembly is provided on the outer wall of the frame. The filter assembly includes a steel ring, a groove, an outer ring, a locking block, and a filter plate. This fiberglass fan, suitable for use in corrosive gas environments, works by filtering and purifying external air through a filter plate before it enters the frame during startup. This prevents the fan from being encased in corrosive gases, thus avoiding corrosion and rendering it unusable. The outer ring of the filter plate is encased by a steel ring made of fiberglass, which provides corrosion resistance and prevents corrosion from creating gaps in the filter plate's contact with the frame, allowing corrosive gases to enter and corrode the fan. However, when the fiberglass fan is shut down or idle, dust and other impurities easily adhere to the filter plate, affecting its lifespan and filtration efficiency, increasing the workload of filter plate replacement, and hindering cost savings. Therefore, to address these issues, this invention proposes a fiberglass fan suitable for use in corrosive gas environments. Summary of the Invention

[0004] The present invention aims to provide a fiberglass fan suitable for use in corrosive gas environments. When the fan is turned off or idle, it can protect the filter plates and prevent dust and other impurities from adhering to the filter plates, which would affect the service life and filtration effect of the filter plates. This reduces the frequency of filter plate replacement by the user, thereby saving the operating cost of the fan.

[0005] This utility model is achieved through the following technical solution:

[0006] A fiberglass fan suitable for use in corrosive gas environments includes a fan body, which includes a housing and fan blades. The fan blades are arranged inside the housing, and a rotating shaft is connected to one side of the middle of the fan blades. A motor is connected to the end of the rotating shaft away from the fan blades. Two support legs are symmetrically connected to the bottom of the housing. Mounting shafts are connected to the four corners of both ends of the housing. Filtering mechanisms are arranged at both ends of the housing. A dustproof mechanism is arranged on the side of the filtering mechanism away from the housing. The filtering mechanism includes a filter plate and a pressure frame. The pressure frame is arranged on the side of the filter plate away from the housing. The dustproof mechanism includes a mounting plate. A first abutment is arranged on one side of the mounting plate. Two telescopic rods are symmetrically connected to the side of the first abutment away from the mounting plate. A retractable dustproof cover is connected to the side of the first abutment away from the mounting plate. A second abutment is connected to the end of the retractable dustproof cover away from the first abutment. A protective shell is arranged on the outside of the telescopic rods.

[0007] As a further feature of the above scheme, each of the four corners of the filter plate is provided with a first through hole, and each of the four corners of the pressure frame is provided with a second through hole. The four mounting shafts pass through the interior of the four first through holes and the four second through holes corresponding to the positions of the mounting shafts. Nuts are threaded to the outer sides of the four mounting shafts to facilitate the disassembly, assembly and maintenance of the filter plate and the pressure frame.

[0008] As a further feature of the above solution, a bracket is rotatably connected to the outer side of the rotating shaft, and a base is connected to the outer side of the motor. Both the base and the bracket are detachably connected to the outer casing, which can provide support for the above components and facilitate their installation and maintenance.

[0009] As a further feature of the above solution, the mounting plate is detachably connected to the pressure frame, facilitating the replacement and maintenance of the mounting plate. The mounting plate has two symmetrically arranged insertion holes inside. Two insertion rods are symmetrically connected to the side of the first abutment plate near the mounting plate. The insertion rods pass through the inside of the insertion holes and slide with the insertion holes, which can limit the position of the retractable dust cover so that the retractable dust cover can completely cover the holes in the middle of the pressure frame, thereby ensuring the protective effect on the filter plate.

[0010] As a further feature of the above solution, a connecting plate is connected to the side of the second abutment away from the retractable dust cover. The connecting plate is detachably connected to the pressure frame, which facilitates the installation and maintenance of the second abutment and can fix one end of the retractable dust cover. Two reserved holes are symmetrically arranged inside the second abutment, and the two telescopic rods pass through the two reserved holes respectively, which facilitates the extension and retraction of the telescopic rods to move the end of the first abutment and the retractable dust cover away from the second abutment.

[0011] As a further feature of the above solution, the end of the telescopic rod away from the first abutment plate is slidably engaged with the protective shell, which helps to protect the end of the telescopic rod away from the first abutment plate and the outer side of the retractable dust cover inside the protective shell, preventing the telescopic rod from being corroded by corrosive gases and extending the service life of the telescopic rod. The protective shell and the pressure frame are detachably connected, which facilitates the disassembly, assembly, replacement and maintenance of the protective shell. The telescopic rod is connected to the terminal equipment via an electrical signal, which facilitates the control of the telescopic rod's extension and retraction.

[0012] The present invention has the following beneficial effects during use:

[0013] The combination of the telescopic rod and the retractable dust cover in the dustproof mechanism allows the first abutment to move away from the second abutment after the fan is turned off. This opens the retractable dust cover, completely blocking the holes in the middle of the pressure frame. The position of the retractable dust cover is restricted by the cooperation between the insert rod on one side of the first abutment and the insert hole inside the mounting plate, ensuring the stability of the retractable dust cover during use. Before the fan is used, the telescopic rod is retracted, moving the first abutment towards the second abutment to fold and retract the retractable dust cover, ensuring that the corrosive gas can smoothly pass through the holes in the middle of the pressure frame into the filter plate and the outer shell.

[0014] The use of a protective cover helps to protect the end of the telescopic rod away from the first abutment plate and the outside of the retractable dust cover inside the protective shell, preventing the telescopic rod from being corroded by corrosive gases and extending its service life. The telescopic rod is connected to the terminal equipment via an electrical signal, allowing users to remotely control the extension and retraction of the telescopic rod without being close to the fan, thus preventing users from coming into contact with residual corrosive gases in the environment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a front sectional perspective view of the present invention;

[0017] Figure 2 is a perspective view of this utility model;

[0018] Figure 3 is a perspective view of the outer shell and fan blades and other components in this utility model;

[0019] Figure 4 is a first exploded perspective view of the filter mechanism in this utility model;

[0020] Figure 5 is a second exploded perspective view of the filter mechanism in this utility model;

[0021] Figure 6 is a first exploded perspective view of the dustproof mechanism in this utility model;

[0022] Figure 7 is a second exploded perspective view of the dustproof mechanism in this utility model.

[0023] In the diagram: 1. Fan body; 2. Filter mechanism; 3. Dustproof mechanism; 11. Outer shell; 111. Mounting shaft; 112. Nut; 12. Fan blade; 13. Rotating shaft; 14. Bracket; 15. Motor; 151. Base; 16. Support foot; 21. Filter plate; 211. First through hole; 22. Pressure frame; 221. Second through hole; 31. Mounting plate; 311. Insertion hole; 32. First abutment plate; 321. Insertion rod; 33. Second abutment plate; 331. Reserved hole; 332. Connecting plate; 34. Retractable dustproof cover; 35. Telescopic rod; 36. Protective shell. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to Figures 1-7 and the embodiments.

[0026] This embodiment discloses a fiberglass fan suitable for use in corrosive gas environments, comprising a fan body 1, which includes a housing 11 and fan blades 12. The fan blades 12 are disposed on the inner side of the housing 11. A rotating shaft 13 is connected to one side of the middle portion of the fan blades 12. A motor 15 is connected to the end of the rotating shaft 13 away from the fan blades 12. Two support legs 16 are symmetrically connected to the lower part of the housing 11. Mounting shafts 111 are connected to the four corners of both ends of the housing 11. A filter mechanism 2 is disposed at both ends of the housing 11. A filter mechanism 2 is disposed on the side away from the housing 11. The dustproof mechanism 3 includes a filter plate 21 and a pressure frame 22. The pressure frame 22 is provided on the side of the filter plate 21 away from the outer shell 11. The dustproof mechanism 3 includes a mounting plate 31. A first abutment plate 32 is provided on one side of the mounting plate 31. Two telescopic rods 35 are symmetrically connected to the side of the first abutment plate 32 away from the mounting plate 31. A retractable dust cover 34 is connected to the side of the first abutment plate 32 away from the mounting plate 31. A second abutment plate 33 is connected to the end of the retractable dust cover 34 away from the first abutment plate 32. A protective shell 36 is provided on the outside of the telescopic rods 35.

[0027] As shown in Figures 1, 2, 3, 4 and 5, each of the four corners of the filter plate 21 is provided with a first through hole 211, and each of the four corners of the pressure frame 22 is provided with a second through hole 221. The four mounting shafts 111 pass through the four first through holes 211 and second through holes 221 corresponding to the positions of the mounting shafts 111. Nuts 112 are threaded onto the outer sides of the four mounting shafts 111 to facilitate the disassembly, assembly and maintenance of the filter plate 21 and the pressure frame 22.

[0028] As shown in Figures 1 and 3, a bracket 14 is rotatably connected to the outer side of the rotating shaft 13, and a base 151 is connected to the outer side of the motor 15. Both the base 151 and the bracket 14 are detachably connected to the outer casing 11, which can provide support for the above-mentioned components and facilitate the installation and maintenance of the above-mentioned components.

[0029] As shown in Figures 1, 6, and 7, the mounting plate 31 is detachably connected to the pressure frame 22, facilitating the replacement and maintenance of the mounting plate 31. The mounting plate 31 has two symmetrically arranged insertion holes 311 inside. The first abutment plate 32 has two symmetrically connected insertion rods 321 on the side near the mounting plate 31. The insertion rods 321 pass through the inside of the insertion holes 311 and slide with the insertion holes 311, which can limit the position of the retractable dust cover 34 so that the retractable dust cover 34 can completely cover the hole in the middle of the pressure frame 22, thereby ensuring the protective effect on the filter plate 21.

[0030] As shown in Figures 6 and 7, a connecting plate 332 is connected to the side of the second abutment 33 away from the retractable dust cover 34. The connecting plate 332 is detachably connected to the pressure frame 22, which facilitates the installation and maintenance of the second abutment 33 and can fix one end of the retractable dust cover 34. Two reserved holes 331 are symmetrically arranged inside the second abutment 33. The two telescopic rods 35 pass through the two reserved holes 331 respectively, which facilitates the extension and retraction of the telescopic rods 35 to drive the first abutment 32 and the retractable dust cover 34 to move the end away from the second abutment 33.

[0031] As shown in Figures 6 and 7, the end of the telescopic rod 35 away from the first abutment plate 32 is slidably engaged with the protective shell 36. This helps to protect the end of the telescopic rod 35 away from the first abutment plate 32 and the outer side of the retractable dust cover 34 inside the protective shell 36, preventing the telescopic rod 35 from being corroded by corrosive gases and extending the service life of the telescopic rod 35. The protective shell 36 is detachably connected to the pressure frame 22, which facilitates the disassembly, assembly, replacement, and maintenance of the protective shell 36. The telescopic rod 35 is connected to the terminal equipment via an electrical signal, which facilitates the control of the extension and retraction of the telescopic rod 35.

[0032] The fiberglass fan disclosed in this embodiment, suitable for use in corrosive gas environments, is installed in such environments before corrosive gases are generated. The motor 15 and telescopic rod 35 are connected to the existing wiring via electrical wires. Four mounting shafts 111 at one end of the housing 11 are sequentially passed through the first through holes 211 at the four corners of a filter plate 21. A pressure frame 22 is placed on one side of the filter plate 21 with the mounting shafts 111 at the four corners, allowing the four mounting shafts 111 to pass through the four second through holes 221 in sequence. Four nuts 112 are sequentially screwed onto the outside of the four mounting shafts 111. After tightening, the end of the pressure frame 22 near the housing 11 completely seals the gaps around the filter plate 21 where it contacts the housing 11. A dustproof mechanism 3 is installed on the side of the pressure frame 22 away from the housing 11, connecting the mounting plate 31, connecting plate 332, and protective cover to the pressure frame 22. The filter mechanism 2 and dustproof mechanism 3 at the other end of the housing 11 are assembled in the same manner. After installation, the fan can be put into use.

[0033] Before using the fan, the terminal device sequentially controls the retraction of the two telescopic rods 35 in the two dustproof mechanisms 3, driving the first abutment plate 32 to move towards the second abutment plate 33, and pulling the insertion rod 321 out of the insertion hole 311. During the movement, the telescopic dust cover 34 gradually folds until the telescopic rod 35 is fully retracted. After the telescopic dust cover 34 is fully folded, the terminal device closes the telescopic rod 35. At this time, the hole in the middle of the pressure frame 22 and the filter plate 21 between the pressure frame 22 and the outer shell 11 are exposed to the environment where the anti-corrosion gas exists. The original external controller is used to start the motor 15, so that the motor 15 drives the fan blade 12 to rotate through the rotating shaft 13. The anti-corrosion gas is drawn into the interior of the outer shell 11 after passing through the filter plate 21 near the motor 15, and blown out through the filter plate 21 near the fan blade 12. The filter plate 21 can filter the corrosive gas and prevent the corrosive gas from corroding and damaging the motor 15, the base 151, the bracket 14, the rotating shaft 13 and the fan blade 12 and other components.

[0034] When the equipment stops operating in the corrosive gas environment, the control motor 15 continues to run. After filtering the corrosive gas in the environment, the motor 15 is turned off using an external controller. The terminal device is used to sequentially control the extension rods 35 in the two dustproof mechanisms 3 to extend the two retractable dustproof covers 34 until the two insertion rods 321 on one side of the two first abutment plates 32 are respectively inserted into the two insertion holes 311 in the two mounting plates 31. The two extension rods 35 are then closed. At this time, the two retractable dustproof covers 34 are fully extended, completely covering the holes in the middle of the pressure frame 22, preventing the filter plate 21 from contacting the air in the environment, preventing dust, powder and other impurities from adhering to the filter plate 21, extending the service life of the filter plate 21, and reducing the frequency of filter plate 21 replacement by the user.

[0035] The FRP fan disclosed in this utility model, suitable for use in corrosive gas environments, includes components such as the fan body 1, outer shell 11, nut 112, fan blade 12, rotating shaft 13, motor 15, base 151, support leg 16, filter plate 21, pressure frame 22, mounting plate 31, first abutment plate 32, second abutment plate 33, retractable dust cover 34, and telescopic rod 35. These components are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fiberglass fan suitable for use in corrosive gas environments, comprising a fan body, the fan body including a housing and fan blades, the fan blades being disposed on the inner side of the housing, a rotating shaft being connected to one side of the middle portion of the fan blades, a motor being connected to the end of the rotating shaft away from the fan blades, and two support legs symmetrically connected to the lower part of the housing, characterized in that, Mounting shafts are connected to each of the four corners of the outer casing. Filtering mechanisms are provided at both ends of the outer casing. A dustproof mechanism is provided on the side of the filtering mechanism away from the outer casing. The filtering mechanism includes a filter plate and a pressure frame. The pressure frame is provided on the side of the filter plate away from the outer casing. The dustproof mechanism includes a mounting plate. A first abutment is provided on one side of the mounting plate. Two telescopic rods are symmetrically connected to the side of the first abutment away from the mounting plate. A retractable dustproof cover is connected to the side of the first abutment away from the mounting plate. A second abutment is connected to the end of the retractable dustproof cover away from the first abutment. A protective shell is provided on the outside of the telescopic rods.

2. The fiberglass fan suitable for use in corrosive gas environments according to claim 1, characterized in that, The filter plate has a first through hole at each of its four corners, and the pressure frame has a second through hole at each of its four corners. The four mounting shafts pass through the four first and second through holes corresponding to the positions of the mounting shafts. Nuts are threaded onto the outer sides of the four mounting shafts.

3. A fiberglass fan suitable for use in corrosive gas environments according to claim 1, characterized in that, A bracket is rotatably connected to the outer side of the rotating shaft, and a base is connected to the outer side of the motor. Both the base and the bracket are detachably connected to the outer casing.

4. A fiberglass fan suitable for use in corrosive gas environments according to claim 1, characterized in that, The mounting plate is detachably connected to the pressure frame. The mounting plate has two symmetrically arranged insertion holes inside. The first abutment plate has two symmetrically connected insertion rods on the side near the mounting plate. The insertion rods pass through the insertion holes and slide with the insertion holes.

5. A fiberglass fan suitable for use in corrosive gas environments according to claim 1, characterized in that, The second abutment is connected to a connecting plate on the side away from the retractable dust cover. The connecting plate is detachably connected to the pressure frame. The interior of the second abutment has two symmetrically arranged reserved holes, and the two telescopic rods pass through the interior of the two reserved holes respectively.

6. A fiberglass fan suitable for use in corrosive gas environments according to claim 1, characterized in that, The end of the telescopic rod away from the first abutment plate is slidably engaged with the protective shell, the protective shell is detachably connected to the pressure frame, and the telescopic rod is connected to the terminal equipment via an electrical signal.

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