Centrifugal fan convenient to disassemble and assemble

Abstract

The invention relates to the technical field of centrifugal fans, in particular to a centrifugal fan convenient to disassemble and assemble, which comprises a mounting box and a centrifugal fan, a protection structure is arranged above the mounting box, the protection structure comprises a disassembling and assembling mechanism, a damping mechanism and a protection mechanism, and the disassembling and assembling mechanism comprises a placing plate, a limiting block, an adjusting box, an adjusting plate and a wedge-shaped rod. According to the centrifugal fan convenient to disassemble and assemble, the centrifugal fan can be quickly and conveniently disassembled and assembled from the placing plate, the connecting strength of the centrifugal fan can be effectively improved by installing a clamping plate, and the centrifugal fan is convenient to disassemble and assemble. And the problem that when the centrifugal fan needs to be cleaned or is damaged and needs to be maintained, the centrifugal fan cannot be quickly and conveniently disassembled is solved, so that the working efficiency of the centrifugal fan is improved.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal fans, in particular to a centrifugal fan which is easy to assemble and disassemble. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air intake of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selection of grains; wind tunnel wind source and inflation and propulsion of hovercraft, etc.

[0003] When using an existing centrifugal fan, the centrifugal fan is usually placed on a mounting box and connected to the mounting box by welding. However, in actual use, when the centrifugal fan needs to be cleaned or damaged and needs repair, the centrifugal fan cannot be disassembled quickly and conveniently, thereby reducing the working efficiency of the centrifugal fan. Summary of the invention

[0004] The object of the present invention is to provide a centrifugal fan that is easy to assemble and disassemble, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a centrifugal fan that is easy to disassemble and assemble, comprising an installation box and a centrifugal fan, wherein a protective structure is arranged above the installation box;

[0006] The protection structure includes a disassembly and assembly mechanism, a shock absorbing mechanism and a protection mechanism;

[0007] The disassembly and assembly mechanism includes a placement plate, a limit block, an adjustment box, an adjustment plate, and a wedge rod. The top of the placement plate is plugged into the bottom of the limit block, the inner wall of the placement plate is connected to the outer wall of the adjustment box, the inner wall of the adjustment box is slidably connected to both ends of the adjustment plate, one side of the adjustment plate is connected to one end of the wedge rod, a pull rod is fixedly installed on the other side of the adjustment 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, and a rubber pad is fixedly installed on the bottom of the placement plate.

[0008] Preferably, a mounting groove is provided on the top of the placement plate, the bottom of the limit block is plugged into the inner wall of the mounting groove, a spring is fixedly installed between one side of the adjustment plate and the inner wall of the adjustment box, the number of the clamping plates is two, and the clamping plates are symmetrically distributed at both ends of the placement plate, the number of the rubber pads is three, and the rubber pads are symmetrically distributed at the bottom of the placement plate, so that the centrifugal fan can be quickly and conveniently disassembled and assembled between the placement plate, and the connection strength can be increased by the clamping plate.

[0009] Preferably, the shock absorbing 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 and the bottom of the buffer rod are interconnected, the inner wall of the mounting box and one end of the damper are interconnected, 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, the number of the buffer boxes is two, and the buffer boxes are symmetrically distributed on the inner wall of the installation box. A spring is fixedly installed between the bottom of the buffer plate and the inner wall of the buffer box, so that vibration can be reduced when the centrifugal fan vibrates during use, thereby enabling better use.

[0011] Preferably, the number of the buffer rods is four, and the buffer rods are symmetrically distributed on the tops of four buffer boxes, and the number of the air ducts is four, and the air ducts are symmetrically distributed on one side of four buffer boxes, so that better shock absorption can be performed, and the inflatable airbag can be inflated during the shock absorption process, thereby better shock absorption can be performed.

[0012] Preferably, the protective mechanism includes a buffer box two, a buffer plate two, a buffer rod two, a connecting plate, and a damper two. The inner wall of the buffer box two is slidingly connected to both ends of the buffer plate two, one side of the buffer plate two is interconnected with one end of the buffer rod two, one side of the buffer rod two is interconnected with one end of the connecting plate, one side of the connecting plate is interconnected with one end of the damper two, one end of the buffer rod two is squeezed and contacted with a mounting block, the inner wall of the mounting block is threadedly connected with a fixing bolt, and 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 shape of the buffer plate two is L-shaped, and the shape of the mounting block is U-shaped, so that it can provide sufficient protection when external objects hit the centrifugal fan and can absorb the impact force generated by the collision.

[0014] Preferably, the inner wall of the installation box is interconnected with the bottom of a buffer box, the bottom of the placement plate is interconnected with the top of a buffer rod, the top of the placement plate is in extrusion contact with the bottom of the centrifugal fan, and one side of the installation box is interconnected with one end of a buffer box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The centrifugal fan that is easy to disassemble and assemble can quickly and conveniently disassemble and assemble the centrifugal fan from the placement plate through the disassembly and assembly mechanism, and can effectively increase the connection strength of the centrifugal fan by installing the clamping plate, thereby solving the problem that the centrifugal fan cannot be disassembled quickly and conveniently when the centrifugal fan needs to be cleaned or damaged and needs to be repaired, thereby improving the working efficiency of the centrifugal fan.

[0017] 2. The centrifugal fan which is easy to disassemble and assemble can achieve shock reduction when vibration occurs during the use of the centrifugal fan through the shock-absorbing mechanism, and can inflate the expansion airbag during the shock-absorbing process, thereby achieving better shock reduction and fully protecting the centrifugal fan.

[0018] 3. The centrifugal fan which is easy to disassemble and assemble can fully protect the centrifugal fan through the protective mechanism. When there is an external object hitting during use, it can be blocked by the protective plate, and the impact force generated by the collision can be absorbed, thereby effectively improving the service life of the centrifugal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

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

[0022] Figure 3 The structure of the disassembly and assembly mechanism of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 4 The structure of the disassembly and assembly mechanism of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 5 The structure of the shock absorbing mechanism of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 6 The structure of the shock absorbing mechanism of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 7 The structure of the protection mechanism of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 8 The structure of the protection mechanism of the present invention is shown in FIG. Figure 2 .

[0028] In the figure: 1. Installation box; 2. Centrifugal fan; 3. Disassembly and assembly mechanism; 301. Placement plate; 302. Limit block; 303. Adjustment box; 304. Adjustment plate; 305. Wedge rod; 306. Pull rod; 307. Fixing plate; 308. Bidirectional 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 guide tube; 406. Inflatable airbag; 5. Protection mechanism; 501. Buffer box two; 502. Buffer plate two; 503. Buffer rod two; 504. Connecting plate; 505. Damper two; 506. Installation block; 507. Fixing bolt; 508. Protection plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] See also Figure 1-Figure 8 , the present invention provides a technical solution: a centrifugal fan that is easy to disassemble and assemble, comprising an installation box 1 and a centrifugal fan 2, wherein a protective structure is arranged above the installation box 1;

[0033] The protection structure includes a disassembly mechanism 3, a shock absorbing mechanism 4 and a protection mechanism 5;

[0034] The disassembly and assembly mechanism 3 includes a placement plate 301, a limit block 302, an adjustment box 303, an adjustment plate 304, and a wedge rod 305. The top of the placement plate 301 is plugged with the bottom of the limit 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 fixed plate 307 is fixedly installed on one side of the placement plate 301, a bidirectional threaded rod 308 is rotatably connected to the inner wall of the fixed plate 307, a threaded plate 309 is threadedly connected to the outer wall of the bidirectional 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;

[0035] In this embodiment, a mounting groove is provided on the top of the placement plate 301, the bottom of the limit block 302 is plugged into the inner wall of the mounting groove, a spring 1 is fixedly installed between one side of the adjustment plate 304 and the inner wall of the adjustment box 303, the number of the clamping plates 310 is two, and the clamping plates 310 are symmetrically distributed at both ends of the placement plate 301, the number of the rubber pads 311 is three, and the rubber pads 311 are symmetrically distributed at the bottom of the placement plate 301, so that the centrifugal fan 2 can be quickly and conveniently disassembled and assembled between the placement plate 301, and the connection strength can be increased by the clamping plates 310;

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

[0037] When in use, when it is needed, the operator places the installation box 1 to the required position and fixes it. At this time, the centrifugal fan 2 is placed on the installation box 1 and fixed. When the centrifugal fan 2 needs to be installed, the centrifugal fan 2 is placed on the placement plate 301, so that the limit block 302 can be inserted into the installation groove opened above the placement plate 301. As the limit block 302 is inserted, the wedge rod 305 can be squeezed to move. The movement of the wedge rod 305 drives the adjustment plate 304 to slide inside the adjustment box 303 and squeeze the spring 1. As the limit block 302 continues to move, the wedge rod 305 will be inserted into the limit groove opened on one side of the limit block 302, so that the centrifugal fan 2 can be limited and fixed. At this time, the two-way threaded rod 308 is rotated The threaded plate 309 is driven to move, and the movement of the threaded plate 309 drives the two clamping plates 310 to move relative to each other, so that the centrifugal fan 2 can be squeezed and fixed, and the centrifugal fan 2 can be further fixed, effectively preventing shaking and falling during use. When disassembly is required, the above steps are repeated in reverse to keep the clamping plate 310 away from the centrifugal fan 2, and the pull rod 306 is pulled to move the adjustment plate 304, and the adjustment plate 304 is moved to drive the wedge rod 305 to move, so that the limit fixation of the limit block 302 can be cancelled, and the centrifugal fan 2 can be removed from the placement plate 301, so that the centrifugal fan 2 can be repaired or cleaned more conveniently, and it can be more convenient for operators to use, thereby improving convenience.

[0038] Embodiment 2:

[0039] On the basis of the first embodiment, the shock absorbing mechanism 4 includes a buffer box 401, a buffer plate 402, a buffer rod 403, a damper 404, and an air guide tube 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 guide tube 405, and the other end of the air guide tube 405 is connected to an expansion airbag 406;

[0040] In this embodiment, there are two buffer boxes 401, which are symmetrically distributed on the inner wall of the installation 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 that the centrifugal fan 2 can be used for better shock absorption when vibration occurs during use;

[0041] Furthermore, there are four buffer rods 403, which are symmetrically distributed on the tops of four buffer boxes 401, and four air ducts 405, which are symmetrically distributed on one side of four buffer boxes 401, so that better shock absorption can be performed, and the inflatable airbag 406 can be inflated during the shock absorption process, thereby better shock absorption can be performed.

[0042] When in use, when it is needed to use it, the operator places the installation box 1 to the required position and fixes it. When the centrifugal fan 2 needs to be disassembled and assembled, the centrifugal fan 2 can be quickly and conveniently disassembled and assembled through the disassembly and assembly mechanism 3. When vibration occurs during use, the centrifugal fan 2 moves to drive the placement plate 301 to move, and the placement plate 301 moves to drive the buffer rod 403 to move. The buffer rod 403 moves to drive the buffer plate 402 to slide inside the buffer box 401 and squeeze the spring 2. The placement plate 301 moves to squeeze the damper 404, and then shock absorption can be performed, thereby reducing the vibration of the centrifugal fan 2 during use. As the buffer plate 402 slides and squeezes 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 tube 405, and then the expansion airbag 406 can be expanded, so as to better absorb the impact force generated by the vibration of the centrifugal fan 2, and then better shock absorption can be performed, and the centrifugal fan 2 can be protected.

[0043] Embodiment three:

[0044] On the basis of the first embodiment, the protection mechanism 5 includes a buffer box 501, a buffer plate 502, a buffer rod 503, a connecting plate 504, and a damper 505. The inner wall of the buffer box 501 is slidably connected to both ends of the buffer plate 502, one side of the buffer plate 502 is mutually connected to one end of the buffer rod 503, one side of the buffer rod 503 is mutually connected to one end of the connecting plate 504, one side of the connecting plate 504 is mutually connected to one end of the damper 505, one end of the buffer rod 503 is pressed and contacted with a mounting block 506, the inner wall of the mounting block 506 is threadedly connected with a fixing bolt 507, and a protection plate 508 is fixedly installed on the top of the mounting block 506;

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

[0046] When in use, when it is necessary to use it, the operator places the installation box 1 to the required position and fixes it. When the centrifugal fan 2 needs to be disassembled and assembled, the centrifugal fan 2 can be quickly and conveniently disassembled and assembled through the disassembly and assembly mechanism 3. When vibration occurs during use, the shock-absorbing mechanism 4 can reduce vibration and protect the centrifugal fan 2. When the centrifugal fan 2 is hit by external objects during use, the objects will contact the protective plate 508, thereby causing the protective plate 508 to move, and the movement of the protective plate 508 drives the installation block 506 to move, and the movement of the installation block 506 drives the buffer rod 2 503 to move, and the movement of the buffer rod 2 503 drives the buffer plate 2 502 Slide inside the buffer box 2 501, slide and squeeze the spring 3 through the buffer plate 2 502, and as the buffer rod 2 503 moves, the connecting plate 504 is driven to move, and the damper 2 505 is squeezed through the connecting plate 504, so that shock absorption and buffering can be performed, and the impact force generated by the impact of objects can be absorbed. When the protective plate 508 needs to be removed, the fixing bolt 507 is rotated to make it move on the inner wall of the mounting block 506, and the fixing bolt 507 can be pulled out of the buffer rod 2 503, so that the protective plate 508 can be removed. When installation is required, the above steps can be repeated in reverse, so as to better protect the centrifugal fan 2 and effectively increase the service life of the centrifugal fan 2.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

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

Claims

1. A centrifugal fan that is easy to assemble and disassemble, comprising an installation box (1) and a centrifugal fan (2), characterized in that: A protective structure is provided above the installation box (1); The protection structure comprises a disassembly and assembly mechanism (3), a shock absorbing mechanism (4) and a protection mechanism (5); The disassembly and assembly mechanism (3) comprises a placement plate (301), a limit block (302), an adjustment box (303), an adjustment plate (304), and a wedge rod (305); the top of the placement plate (301) is plugged into the bottom of the limit block (302); the inner wall of the placement plate (301) and the outer wall of the adjustment box (303) are connected to each other; the inner wall of the adjustment box (303) and two ends of the adjustment plate (304) are slidably connected; one side of the adjustment plate (304) is connected to one end of the wedge rod (305); The two plates are interconnected, 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), the inner wall of the fixing plate (307) is rotatably connected to a bidirectional threaded rod (308), the outer wall of the bidirectional threaded rod (308) is threadedly connected to a threaded plate (309), 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).

2. The centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The top of the placement plate (301) is provided with a mounting groove, the bottom of the limit block (302) is plugged into the inner wall of the mounting groove, a spring is fixedly installed between one side of the adjustment plate (304) and the inner wall of the adjustment box (303), the number of the clamping plates (310) is two, and the clamping plates (310) are symmetrically distributed at both ends of the placement plate (301), and the number of the rubber pads (311) is three, and the rubber pads (311) are symmetrically distributed at the bottom of the placement plate (301).

3. The centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The shock absorbing mechanism (4) comprises a buffer box (401), a buffer plate (402), a buffer rod (403), a damper (404), and an air guide tube (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) and the bottom of the buffer rod (403) are connected to each other; the inner wall of the installation box (1) and one end of the damper (404) are connected to each other; one side of the buffer box (401) is connected to one end of the air guide tube (405); and the other end of the air guide tube (405) is connected to an expansion airbag (406).

4. The centrifugal fan that is easy to assemble and disassemble according to claim 3 is characterized in that: The number of the buffer boxes (401) is two, and the buffer boxes (401) are symmetrically distributed on the inner wall of the installation 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).

5. The centrifugal fan that is easy to assemble and disassemble according to claim 3, characterized in that: The number of the buffer rods (403) is four, and the buffer rods (403) are symmetrically distributed on the tops of the four buffer boxes (401). The number of the air guide pipes (405) is four, and the air guide pipes (405) are symmetrically distributed on one side of the four buffer boxes (401).

6. The centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The protective mechanism (5) comprises 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 mutually connected to one end of the second buffer rod (503). One side of the second buffer rod (503) is mutually connected to one end of the connecting plate (504). One side of the connecting plate (504) is mutually connected to one end of the second damper (505). One end of the second buffer rod (503) is pressed and contacted with a mounting block (506). The inner wall of the mounting block (506) is threadedly connected with a fixing bolt (507). A protective plate (508) is fixedly installed on the top of the mounting block (506).

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

8. The centrifugal fan that is easy to assemble and disassemble according to claim 1, characterized in that: The inner wall of the installation box (1) is interconnected with the bottom of the buffer box (401), the bottom of the placement plate (301) is interconnected with the top of the buffer rod (403), the top of the placement plate (301) is in compression contact with the bottom of the centrifugal fan (2), and one side of the installation box (1) is interconnected with one end of the buffer box (501).

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