A centrifugal fan that is easy to assemble and disassemble

Abstract

This invention relates to the field of centrifugal fan technology, and more particularly to a centrifugal fan that is easy to assemble and disassemble, comprising a mounting box and a centrifugal fan. A protective structure is provided on top of the mounting box, the protective structure including a disassembly and assembly mechanism, a shock-absorbing mechanism, and a protective mechanism. The disassembly and assembly mechanism includes a placement plate, a limiting block, an adjusting box, an adjusting plate, and a wedge rod. The top of the placement plate is inserted into the bottom of the limiting block, and the inner wall of the placement plate is connected to the outer wall of the adjusting box. This easy-to-assemble centrifugal fan enables quick and convenient disassembly and assembly from the placement plate, and the installation of the clamping plate effectively increases the connection strength of the centrifugal fan. It solves the problem of not being able to quickly and conveniently disassemble the centrifugal fan when it needs cleaning or repair, thereby improving the working efficiency of the centrifugal fan.

Description

Technical Field

[0001] This invention relates to the field of centrifugal fan technology, specifically to a centrifugal fan that is easy to assemble and disassemble. Background Technology

[0002] Centrifugal fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas; they are a type of driven fluid machinery. Centrifugal fans are widely used in ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; ventilation and induced draft in boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; grain drying and conveying; wind tunnel air sources; and inflation and propulsion for hovercraft, etc.

[0003] In current centrifugal fans, they are usually placed on a mounting box and connected to the box by welding. However, in actual use, when the centrifugal fan needs cleaning or is damaged and needs repair, it is not possible to disassemble the centrifugal fan quickly and easily, thus reducing the working efficiency of the centrifugal fan. Summary of the Invention

[0004] The purpose of this invention is to provide a centrifugal fan that is easy to assemble and disassemble, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a centrifugal fan that is easy to assemble and disassemble, comprising a mounting box and a centrifugal fan, wherein a protective structure is provided on the top of the mounting box;

[0006] The protective structure includes a disassembly and assembly mechanism, a shock absorption mechanism, and a protective mechanism;

[0007] The disassembly and assembly mechanism includes a placement plate, a limiting block, an adjusting box, an adjusting plate, and a wedge rod. The top of the placement plate is inserted into the bottom of the limiting block. The inner wall of the placement plate is connected to the outer wall of the adjusting box. The inner wall of the adjusting box is slidably connected to both ends of the adjusting plate. One side of the adjusting plate is connected to one end of the wedge rod. A pull rod is fixedly installed on the other side of the adjusting plate. A fixing plate is fixedly installed on one side of the placement plate. A bidirectional threaded rod is rotatably connected to the inner wall of the fixing plate. A threaded plate is threadedly connected to the outer wall of the bidirectional threaded rod. A clamping plate is fixedly installed on the top of the threaded plate. A rubber pad is fixedly installed on the bottom of the placement plate.

[0008] Preferably, the top of the placement plate has an installation groove, the bottom of the limiting block is inserted into the inner wall of the installation groove, a spring is fixedly installed between one side of the adjusting plate and the inner wall of the adjusting box, there are two clamping plates, which are symmetrically distributed at both ends of the placement plate, and there are three rubber pads, which are symmetrically distributed at the bottom of the placement plate. This allows for quick and convenient assembly and disassembly of the centrifugal fan from the placement plate, and the clamping plates increase the connection strength.

[0009] Preferably, the shock absorption mechanism includes a buffer box, a buffer plate, a buffer rod, a damper, and an air duct. The inner wall of the buffer box is slidably connected to both ends of the buffer plate. The top of the buffer plate is connected to the bottom of the buffer rod. The inner wall of the mounting box is connected to one end of the damper. One side of the buffer box is connected to one end of the air duct, and the other end of the air duct is connected to an inflatable airbag.

[0010] Preferably, there are four buffer boxes, which are symmetrically distributed on the inner wall of the mounting box. A spring is fixedly installed between the bottom of the buffer plate and the inner wall of the buffer box, so as to reduce vibration when the centrifugal fan vibrates during use, thereby improving its performance.

[0011] Preferably, there are four buffer rods, which are symmetrically distributed on the top of the four buffer boxes. There are also four air guide pipes, which are symmetrically distributed on one side of the four buffer boxes. This allows for better shock absorption and enables the inflatable airbags to expand during the shock absorption process, thus further enhancing shock absorption.

[0012] Preferably, the protective mechanism includes a second buffer box, a second buffer plate, a second buffer rod, a connecting plate, and a second damper. The inner wall of the second buffer box is slidably connected to both ends of the second buffer plate. One side of the second buffer plate is connected to one end of the second buffer rod. One side of the second buffer rod is connected to one end of the connecting plate. One side of the connecting plate is connected to one end of the second damper. One end of the second buffer rod is pressed against a mounting block. A fixing bolt is threaded onto the inner wall of the mounting block. A protective plate is fixedly installed on the top of the mounting block.

[0013] Preferably, a spring three is fixedly installed between one side of the buffer plate two and the inner wall of the buffer box two, the buffer rod two is L-shaped, and the mounting block is U-shaped, so that it can provide sufficient protection when an external object hits the centrifugal fan and absorb the impact force generated during the impact.

[0014] Preferably, the inner wall of the mounting box is connected to the bottom of the first buffer box, the bottom of the placement plate is connected to the top of the first buffer rod, the top of the placement plate is in contact with the bottom of the centrifugal fan, and one side of the mounting box is connected to one end of the second buffer box.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This easy-to-disassemble centrifugal fan allows for quick and convenient disassembly and assembly from the mounting plate via a disassembly and assembly mechanism. Furthermore, the installation of a clamping plate effectively increases the connection strength of the centrifugal fan, solving the problem of not being able to quickly and conveniently disassemble the centrifugal fan when it needs cleaning or repair due to damage, thereby improving the working efficiency of the centrifugal fan.

[0017] 2. This easily disassembled centrifugal fan uses a shock-absorbing mechanism to reduce vibrations during operation. The mechanism also expands the air bladder during shock absorption, further enhancing shock absorption and protecting the centrifugal fan.

[0018] 3. This easily disassembled centrifugal fan is fully protected by a protective mechanism. When an external object impacts the fan during use, the protective plate can block the impact and absorb the force of the impact, thereby effectively improving the service life of the centrifugal fan. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of the present invention. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the disassembly and assembly mechanism of the present invention. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the shock absorption mechanism of the present invention. Figure 1 ;

[0025] Figure 6 This is a schematic diagram of the shock absorption mechanism of the present invention. Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the protective mechanism of the present invention. Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the protective mechanism of the present invention. Figure 2 .

[0028] In the diagram: 1. Mounting box; 2. Centrifugal fan; 3. Disassembly and assembly mechanism; 301. Placement plate; 302. Limiting block; 303. Adjustment box; 304. Adjustment plate; 305. Wedge rod; 306. Tie rod; 307. Fixing plate; 308. Two-way threaded rod; 309. Threaded plate; 310. Clamping plate; 311. Rubber pad; 4. Shock absorption mechanism; 401. Buffer box one; 402. Buffer plate one; 403. Buffer rod one; 404. Damper one; 405. Air duct; 406. Inflatable airbag; 5. Protective mechanism; 501. Buffer box two; 502. Buffer plate two; 503. Buffer rod two; 504. Connecting plate; 505. Damper two; 506. Mounting block; 507. Fixing bolt; 508. Protective plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Example 1:

[0032] Please see Figures 1-8 The present invention provides a technical solution: a centrifugal fan that is easy to assemble and disassemble, including a mounting box 1 and a centrifugal fan 2, wherein a protective structure is provided on the top of the mounting box 1;

[0033] The protective structure includes a disassembly and assembly mechanism 3, a shock absorption mechanism 4, and a protective mechanism 5;

[0034] The disassembly and assembly mechanism 3 includes a placement plate 301, a limiting block 302, an adjustment box 303, an adjustment plate 304, and a wedge rod 305. The top of the placement plate 301 is inserted into the bottom of the limiting block 302. The inner wall of the placement plate 301 is connected to the outer wall of the adjustment box 303. The inner wall of the adjustment box 303 is slidably connected to both ends of the adjustment plate 304. One side of the adjustment plate 304 is connected to one end of the wedge rod 305. A pull rod 306 is fixedly installed on the other side of the adjustment plate 304. A fixing plate 307 is fixedly installed on one side of the placement plate 301. A two-way threaded rod 308 is rotatably connected to the inner wall of the fixing plate 307. A threaded plate 309 is threadedly connected to the outer wall of the two-way threaded rod 308. A clamping plate 310 is fixedly installed on the top of the threaded plate 309. A rubber pad 311 is fixedly installed on the bottom of the placement plate 301.

[0035] In this embodiment, the top of the placement plate 301 is provided with an installation groove, the bottom of the limiting block 302 is inserted into the inner wall of the installation groove, a spring is fixedly installed between one side of the adjustment plate 304 and the inner wall of the adjustment box 303, there are two clamping plates 310, which are symmetrically distributed at both ends of the placement plate 301, and there are three rubber pads 311, which are symmetrically distributed at the bottom of the placement plate 301. This allows for quick and convenient assembly and disassembly of the centrifugal fan 2 and the placement plate 301, and the clamping plates 310 can increase the connection strength.

[0036] Furthermore, the inner wall of the mounting box 1 is connected to the bottom of the buffer box 401, the bottom of the placement plate 301 is connected to the top of the buffer rod 403, the top of the placement plate 301 is in contact with the bottom of the centrifugal fan 2, and one side of the mounting box 1 is connected to one end of the buffer box 501.

[0037] In use, when needed, the operator places and secures the mounting box 1 in the required position. Then, the centrifugal fan 2 is placed on and secured to the mounting box 1. When the centrifugal fan 2 needs to be installed, it is placed on the placement plate 301, allowing the limiting block 302 to insert into the mounting groove on the upper part of the placement plate 301. As the limiting block 302 is inserted, it compresses the wedge rod 305, causing it to move. The movement of the wedge rod 305 drives the adjusting plate 304 to slide inside the adjusting box 303, compressing the spring. As the limiting block 302 continues to move, the wedge rod 305 inserts into the limiting groove on one side of the limiting block 302, thus limiting and securing the centrifugal fan 2. At this point, the bidirectional thread is rotated... Rod 308 moves threaded plate 309, which in turn moves two clamping plates 310 relative to each other, thereby squeezing and fixing centrifugal fan 2. This further secures centrifugal fan 2, effectively preventing it from shaking or falling during use. When disassembly is required, the above steps are repeated in reverse to move clamping plates 310 away from centrifugal fan 2. Pulling rod 306 moves adjusting plate 304, which in turn moves wedge rod 305, thus removing the limiting block 302 and allowing centrifugal fan 2 to be removed from placement plate 301. This makes it easier to maintain or clean centrifugal fan 2, and also makes it more convenient for operators to use, improving usability.

[0038] Example 2:

[0039] Based on Embodiment 1, the shock absorption mechanism 4 includes a buffer box 401, a buffer plate 402, a buffer rod 403, a damper 404, and an air duct 405. The inner wall of the buffer box 401 is slidably connected to both ends of the buffer plate 402. The top of the buffer plate 402 is connected to the bottom of the buffer rod 403. The inner wall of the mounting box 1 is connected to one end of the damper 404. One side of the buffer box 401 is connected to one end of the air duct 405, and the other end of the air duct 405 is connected to an inflatable airbag 406.

[0040] In this embodiment, there are four buffer boxes 401. The buffer boxes 401 are symmetrically distributed on the inner wall of the mounting box 1. A spring 2 is fixedly installed between the bottom of the buffer plate 402 and the inner wall of the buffer box 401, so as to reduce vibration when the centrifugal fan 2 vibrates during use, and thus can be used better.

[0041] Furthermore, there are four buffer rods 403, which are symmetrically distributed on the top of the four buffer boxes 401. There are also four air ducts 405, which are symmetrically distributed on one side of the four buffer boxes 401. This allows for better shock absorption, and the air bladders 406 can expand during the shock absorption process, thus further enhancing shock absorption.

[0042] When in use, the operator places and secures the mounting box 1 in the required position. When the centrifugal fan 2 needs to be disassembled, it can be quickly and easily disassembled and assembled using the disassembly and assembly mechanism 3. When vibration occurs during use, the centrifugal fan 2 moves, causing the placement plate 301 to move. The movement of the placement plate 301 causes the buffer rod 403 to move, which in turn causes the buffer plate 402 to slide inside the buffer box 401 and compress the spring 2. The movement of the placement plate 301 compresses the damper 404, thereby reducing vibration and reducing the vibration of the centrifugal fan 2 during use. As the buffer plate 402 slides and compresses the air inside the buffer box 401, the air inside the buffer box 401 can be transported to the expansion airbag 406 through the air guide pipe 405, causing the expansion airbag 406 to expand and better absorb the impact force generated by the vibration of the centrifugal fan 2, thus better reducing vibration and protecting the centrifugal fan 2.

[0043] Example 3:

[0044] Based on Embodiment 1, the protective mechanism 5 includes a second buffer box 501, a second buffer plate 502, a second buffer rod 503, a connecting plate 504, and a second damper 505. The inner wall of the second buffer box 501 is slidably connected to both ends of the second buffer plate 502. One side of the second buffer plate 502 is connected to one end of the second buffer rod 503. One side of the second buffer rod 503 is connected to one end of the connecting plate 504. One side of the connecting plate 504 is connected to one end of the second damper 505. One end of the second buffer rod 503 is pressed against a mounting block 506. The inner wall of the mounting block 506 is threaded with a fixing bolt 507. A protective plate 508 is fixedly installed on the top of the mounting block 506.

[0045] In this embodiment, a spring is fixedly installed between one side of the buffer plate 2 502 and the inner wall of the buffer box 2 501. The buffer rod 2 503 is L-shaped and the mounting block 506 is U-shaped, so that it can provide sufficient protection when an external object hits the centrifugal fan 2 and absorb the impact force generated during the impact.

[0046] In use, when needed, the operator places and secures the mounting box 1 in the required position. When the centrifugal fan 2 needs to be disassembled, it can be quickly and easily disassembled using the disassembly mechanism 3. During use, vibration is absorbed by the shock-absorbing mechanism 4, which also protects the centrifugal fan 2. When an external object impacts the centrifugal fan 2 during use, the object will contact the protective plate 508, causing the protective plate 508 to move. The movement of the protective plate 508 moves the mounting block 506, which in turn moves the second buffer rod 503, which in turn moves the second buffer plate 502. The buffer rod slides inside the buffer box 501, and the spring 3 is compressed by the sliding buffer plate 502. As the buffer rod 503 moves, the connecting plate 504 moves, and the damper 505 is compressed by the moving connecting plate 504, thereby absorbing the shock and absorbing the impact force generated by the impact of the object. When it is necessary to remove the protective plate 508, the fixing bolt 507 is rotated to move it on the inner wall of the mounting block 506, so that the fixing bolt 507 can be pulled out of the buffer rod 503, thereby removing the protective plate 508. When it is necessary to install, the above steps are repeated in reverse, which can better protect the centrifugal fan 2 and effectively improve the service life of the centrifugal fan 2.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal fan that is easy to assemble and disassemble, comprising a mounting box (1) and a centrifugal fan (2), characterized in that: A protective structure is provided on the top of the mounting box (1); The protective structure includes a disassembly and assembly mechanism (3), a shock absorption mechanism (4), and a protective mechanism (5). The disassembly and assembly mechanism (3) includes a placement plate (301), a limiting block (302), an adjustment box (303), an adjustment plate (304), and a wedge rod (305). The top of the placement plate (301) is inserted into the bottom of the limiting block (302). The inner wall of the placement plate (301) is connected to the outer wall of the adjustment box (303). The inner wall of the adjustment box (303) is slidably connected to both ends of the adjustment plate (304). One side of the adjustment plate (304) is connected to one end of the wedge rod (305). A pull rod (306) is fixedly installed on the other side of the adjustment plate (304). One side of the placement plate (301) is fixed. A fixing plate (307) is installed, and a two-way threaded rod (308) is rotatably connected to the inner wall of the fixing plate (307). A threaded plate (309) is threadedly connected to the outer wall of the two-way threaded rod (308). A clamping plate (310) is fixedly installed on the top of the threaded plate (309), and a rubber pad (311) is fixedly installed on the bottom of the placement plate (301). An installation groove is opened on the top of the placement plate (301), and the bottom of the limiting block (302) is inserted into the inner wall of the installation groove. A spring is fixedly installed between one side of the adjusting plate (304) and the inner wall of the adjusting box (303). The number of clamping plates (310) is as follows: Two clamping plates (310) are symmetrically distributed at both ends of the placement plate (301), and three rubber pads (311) are symmetrically distributed at the bottom of the placement plate (301). When it is needed for use, the operator places the mounting box (1) in the required position and fixes it. At this time, the centrifugal fan (2) is placed on the mounting box (1) and fixed. When it is needed to install the centrifugal fan (2), the centrifugal fan (2) is placed on the placement plate (301), so that the limiting block (302) can be inserted into the mounting groove opened on the top of the placement plate (301). When the limiting block (302) is inserted, it can squeeze the wedge rod (305) to move. The movement of the wedge rod (305) drives the adjusting plate (304) to slide inside the adjusting box (303) and squeeze the spring. As the limiting block (302) continues to move, the wedge rod (305) will be inserted into the limiting groove opened on one side of the limiting block (302), thereby limiting and fixing the centrifugal fan (2). At this time, rotating the bidirectional threaded rod (308) drives the threaded plate (309) to move. The movement of the threaded plate (309) drives the two clamping plates (310) to move relative to each other, thereby squeezing and fixing the centrifugal fan (2).

2. The centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The shock absorption mechanism (4) includes a buffer box (401), a buffer plate (402), a buffer rod (403), a damper (404), and an air duct (405). The inner wall of the buffer box (401) is slidably connected to both ends of the buffer plate (402). The top of the buffer plate (402) is connected to the bottom of the buffer rod (403). The inner wall of the mounting box (1) is connected to one end of the damper (404). One side of the buffer box (401) is connected to one end of the air duct (405), and the other end of the air duct (405) is connected to an inflatable airbag (406).

3. A centrifugal fan that is easy to assemble and disassemble according to claim 2, characterized in that: There are four buffer boxes (401). The buffer boxes (401) are symmetrically distributed on the inner wall of the mounting box (1). A spring is fixedly installed between the bottom of the buffer plate (402) and the inner wall of the buffer box (401).

4. A centrifugal fan that is easy to assemble and disassemble according to claim 2, characterized in that: There are four buffer rods (403), which are symmetrically distributed on the top of the four buffer boxes (401). There are four air guide pipes (405), which are symmetrically distributed on one side of the four buffer boxes (401).

5. A centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The protective mechanism (5) includes a second buffer box (501), a second buffer plate (502), a second buffer rod (503), a connecting plate (504), and a second damper (505). The inner wall of the second buffer box (501) is slidably connected to both ends of the second buffer plate (502). One side of the second buffer plate (502) is connected to one end of the second buffer rod (503). One side of the second buffer rod (503) is connected to one end of the connecting plate (504). One side of the connecting plate (504) is connected to one end of the second damper (505). One end of the second buffer rod (503) is pressed against an installation block (506). The inner wall of the installation block (506) is threaded with a fixing bolt (507). A protective plate (508) is fixedly installed on the top of the installation block (506).

6. A centrifugal fan that is easy to assemble and disassemble according to claim 5, characterized in that: A spring is fixedly installed between one side of the buffer plate (502) and the inner wall of the buffer box (501). The buffer rod (503) is L-shaped, and the mounting block (506) is U-shaped.

7. A centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The inner wall of the mounting box (1) is connected to the bottom of the first buffer box (401), the bottom of the placement plate (301) is connected to the top of the first buffer rod (403), the top of the placement plate (301) is pressed against the bottom of the centrifugal fan (2), and one side of the mounting box (1) is connected to one end of the second buffer box (501).

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