Combined fan easy to disassemble and maintain

Abstract

The invention relates to the technical field of draught fans, and discloses a combined draught fan easy to disassemble and maintain, which comprises a bottom frame, a damping supporting seat, a fixing frame, a driving motor, an overturning structure, a collecting structure and a driving mechanism, the damping supporting seat is fixed at the corner position of the bottom end of the bottom frame, the fixing frame is fixed on one side of the top end of the bottom frame, and the driving motor is mounted at the top end of the fixing frame; the collecting structure is arranged on the other side of the front cover plate, the sealing structure is arranged on one side of the collecting structure, and the loading and unloading structure is arranged on the outer side of the shell and used for rapidly disassembling the device for maintenance. The fixing of the front cover plate, the shell and the rear cover plate is canceled by reversely rotating the eccentric pressing wheel, and the front cover plate and the shell can be integrally disassembled, so that the device is easy to disassemble, the disassembly process is simplified, the disassembly can be quickly completed without complex tools, the maintenance time is greatly saved, non-professional personnel can also easily operate the device, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to fans, and more specifically, particularly relates to a combined fan that is easy to disassemble and maintain. Background Art

[0002] As a highly efficient air treatment equipment, the combined fan can draw in fresh air and deliver it into the room, effectively improving the indoor air quality and circulating and exchanging the indoor and outdoor air. It is suitable for offices, conference rooms, hotels, factories and other places. Especially in environments where the indoor air needs to be kept fresh, clean or at a specific temperature and humidity, the combined fan plays an irreplaceable role.

[0003] Prior art, such as patent document with publication number CN215444486U, discloses a combined fresh air fan, including a fan, a supporting member is arranged at the bottom of the fan, a base is arranged at the bottom of the supporting member, a sliding member is arranged at the bottom of the base, a sliding member is arranged below the sliding member, a limiting member is arranged inside the sliding member, and a clamping member is arranged at the top of the supporting member, the clamping member includes a clamping plate and a first rubber pad, the clamping plate is installed on the top of the supporting plate, and the first rubber pad is installed on the side of the clamping plate close to the fan; Beneficial effects The main points of the technical solution are: the direction of the fan outlet can be adjusted by sliding the fan on the sliding member, and the fan is fixed on the supporting member, and the supporting member and the sliding member can slide, so that the fan can be easily disassembled when the fan is replaced and repaired later. The main points of the technical solution are: the direction of the fan outlet can be adjusted by sliding the fan on the sliding member, and the fan is fixed on the supporting member, and the supporting member and the sliding member can slide, so that the fan can be easily disassembled when the fan is replaced and repaired later. However, the existing combined new fan still has the following defects: 1. In the prior art, the fan parts are usually fixed with bolts. The bolt connection needs to be tightened and disassembled with the help of tools. The operation process is relatively cumbersome, which leads to a long time consumption when the fan needs to be disassembled for maintenance, increasing the maintenance cost, affecting the maintenance efficiency and normal operation of the fan, and is not conducive to the timely inspection and maintenance of the fan; 2. In the prior art, the angle of the fan blades is fixed, which is difficult to flexibly adjust according to actual operating requirements, resulting in the fan being difficult to maintain optimal performance under different working conditions, reducing its ability to cope with complex environments; 3. In the prior art, dust-prone areas such as the blades and air ducts inside the fan are difficult to reach, resulting in long-term accumulation of dust and debris, which not only affects the operating efficiency of the fan, but may also cause malfunctions.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a combined fan that is easy to disassemble and maintain is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] The present invention provides a combined fan that is easy to disassemble and maintain, so as to overcome the above-mentioned defects in the prior art.

[0006] The purpose and effect of the combined fan that is easy to disassemble and maintain of the present invention are achieved by the following specific technical means: Combined fan that is easy to disassemble and maintain, including the base frame, The shock-absorbing support seat is fixed at the corner position of the bottom end of the chassis to achieve shock absorption during the operation of the fan; A fixed frame, fixed to one side of the top of the base frame, and a driving motor is installed on the top of the fixed frame; A rear cover plate is fixed to one side of the fixing frame, and a housing is detachably mounted on one side of the rear cover plate, a front cover plate is detachably mounted on one side of the housing, and a front cover plate is detachably mounted on one side of the air guide ring; An air outlet pipe is sleeved on the top of the shell; The flip structure is arranged at the end of the output shaft of the driving motor, and an impeller blade is installed on one side of the flip structure; A collecting structure, arranged on the other side of the front cover plate, for collecting foreign matter generated by backblowing; A sealing structure, arranged on one side of the collecting structure, for blocking the pipeline; An air inlet duct is installed on one side of the sealing structure; The loading and unloading structure is arranged on the outside of the shell and is used to quickly disassemble the device for maintenance.

[0007] A further technical solution, the loading and unloading structure includes a second connecting seat fixed on the outer side of the rear cover plate, a first connecting seat fixed on the outer side of the front cover plate, a positioning groove fixed on the outer side of the outer shell, a positioning nut inserted in the second connecting seat, a quick release rod threadedly connected to the inside of the positioning nut and passing through the positioning groove, an eccentric pressure wheel rotatably connected to one end of the quick release rod, a spring seat installed between the eccentric pressure wheel and the first connecting seat and slidably connected to the quick release rod, installation grooves respectively opened on one side of the rear cover plate and one side of the front cover plate, a positioning ring fixed on one side of the front cover plate, a positioning pin fixed inside the positioning ring, a pressure ring detachably installed inside the positioning ring, a third connecting seat fixed on one side of the pressure ring, a pressure block rotatably connected to the inside of one side of the third connecting seat, and a pressure groove arranged inside the flip structure.

[0008] A further technical solution, the flipping structure includes a mounting shell installed on one side of the rear cover plate, a hollow hydraulic cylinder fixed inside the mounting shell, a connecting block rotatably connected to the outside of the mounting shell, a movable ring installed at the telescopic end of the hollow hydraulic cylinder, a rotating ring sleeved on the outside of the movable ring and connected to the connecting block, a rotating plate detachably mounted on the outside of the connecting block, a connecting groove opened inside the rotating plate, a first guide groove opened on the surface of the rotating plate, a first fixed plate rotatably connected to one side of the rotating plate, a second guide groove opened on the surface of the first fixed plate, a hexagonal block fixed at the end of the output shaft of the driving motor, an inner hexagonal groove opened inside one side of the first fixed plate and engaged with the hexagonal block, and a movable rod fixed on one side of the impeller blade and slidably connected to the second guide groove.

[0009] According to a further technical solution, the pressing groove is provided inside one side of the first fixing plate, and a plug-in structure is formed between the pressing groove and the pressing block.

[0010] According to a further technical solution, the positioning pins are distributed in a circular shape with equal spacing on the inner side of the positioning ring, and the insides of the pressure ring and the air guide ring are both provided with through holes matching the positioning pins.

[0011] A further technical solution is that a spiral slide rail is provided inside the rotating ring, a slide groove matching the spiral slide rail is provided on the outside of the moving ring, a plane bearing is installed between the moving ring and the hollow hydraulic cylinder, the moving rod passes through the second guide groove and extends to the inside of the first guide groove, and a sliding structure is formed between the moving rod and the first guide groove.

[0012] A further technical solution, the collecting structure includes a connecting pipe fixed on one side of the front cover plate, a dust exhaust pipe installed at the bottom end of the connecting pipe, a filter cage slidably connected to the bottom end of the dust exhaust pipe, a sealing gasket installed at the top of the filter cage, a fixed shell fixed on one side of the connecting pipe, a stepper motor installed on one side of the fixed shell, an inner gear ring rotatably connected to the inner wall of the fixed shell, a transmission gear installed at the end of the stepper motor output shaft and meshing with the inner gear ring, an outer gear ring rotatably connected to the inside of one side of the fixed shell and meshing with the transmission gear, a second baffle slidably connected to one side of the interior of the connecting pipe, and a first baffle slidably connected to the other side of the interior of the connecting pipe and connected to the transmission gear.

[0013] A further technical solution is that the sealing structure includes a transmission plate fixed on one side of the outer gear ring and connected to the second baffle, a third guide groove opened inside the transmission plate, a movable shaft slidably connected inside the third guide groove, a baffle fixed on the outside of the movable shaft, a slider fixed on one side of the baffle, a second fixed plate arranged on one side of the baffle, and a fourth guide groove opened inside one side of the second fixed plate and slidably connected to the slider.

[0014] According to a further technical solution, the first baffle plate extends to the interior of the fixed shell and is connected to the inner gear ring, the second baffle plate is connected to the transmission plate and the outer gear ring, and the front cross-section of the filter cage is a funnel-shaped inclined structure.

[0015] According to a further technical solution, a sliding connection is formed between the movable shaft and the third guide groove, the third guide groove is distributed in a circular shape with equal intervals inside the transmission plate, and a clamping frame connected to the front cover plate is installed on one side of the second fixed plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The easily disassembled and maintained combined fan of the present invention cancels the fixation of the front cover, the housing and the rear cover by rotating the eccentric pressure wheel in the opposite direction, and the front cover and the housing can be disassembled as a whole, thereby realizing the easy disassembly function of the device, simplifying the disassembly process, and can be completed quickly without complicated tools, greatly saving maintenance time, allowing non-professionals to easily operate, and improving maintenance efficiency; The easily disassembled and maintained combined fan of the present invention realizes the wind pressure adjustment function of the device by starting the hollow hydraulic cylinder to push the moving ring to move, so that the second guide groove adjusts the angle of placement of the impeller blades. By adjusting the blade angle, the wind pressure and air volume are accurately controlled to meet the requirements of different working conditions, so that it can adapt to variable working conditions and improve the overall performance and comfort of the system. The easily disassembled and maintained combined fan of the present invention starts the driving motor 12 to rotate in the reverse direction, performs back-blowing cleaning on the inside of the fan and the ventilation pipeline, and at the same time, the stepper motor drives the first baffle plate to separate from the second baffle plate, and the sealing structure seals the air inlet pipe, so that the recoil foreign matter and the air flow enter the dust exhaust pipe for collection, and dust and debris accumulated in the fan and the pipeline can be removed; The easily disassembled and maintained combined fan of the present invention drives the transmission plate to rotate through the outer gear ring, so that multiple groups of movable shafts drive the baffles to move toward the center of the pipeline, and seal the air inlet pipe to block the flow of gas. This can prevent foreign matter from entering the fan when idle, and at the same time block foreign matter cleared by backblowing, so that the foreign matter can enter the collection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention in a front view; Figure 2 It is a schematic diagram of the rear-view overall three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention in front view and section; Figure 4 The present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 5It is one of the exploded schematic diagrams of the loading and unloading structure of the present invention; Figure 6 This is the second exploded schematic diagram of the loading and unloading structure of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the pressure ring of the present invention; Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the connection block of the present invention; Fig. 9 The present invention Figure 3 The enlarged structural diagram at B in the middle; Fig.10 It is one of the exploded schematic diagrams of the sealing structure of the present invention; Fig.11 is a three-dimensional schematic diagram of the collection structure of the present invention; Fig.12 This is the second explosion schematic diagram of the sealing structure of the present invention.

[0018] Description of reference numerals: 1. Base frame; 2. Shock-absorbing support seat; 3. Fixed frame; 4. Shell; 5. Loading and unloading structure; 501. Quick release rod; 502. Mounting groove; 503. Spring seat; 504. Eccentric pressure wheel; 505. First connecting seat; 506. Second connecting seat; 507. Positioning nut; 508. Positioning groove; 509. Positioning ring; 510. Positioning pin; 511. Pressing ring; 512. Third connecting seat; 513. Pressing block; 514. Pressing groove; 6. Air outlet duct; 7. Flipping structure; 701. First fixing plate; 702. Rotating plate; 703. Connecting block; 704. First guide groove; 705. Connecting groove; 706. Second guide groove; 707. Hexagonal groove; 708. Moving rod; 709. Rotating ring; 710. Moving ring; 711, hollow hydraulic cylinder; 712, mounting shell; 713, hexagonal block; 8, sealing structure; 801, second fixed plate; 802, fourth guide groove; 803, baffle; 804, moving shaft; 805, transmission plate; 806, third guide groove; 807, slider; 9, collecting structure; 901, fixed shell; 902, first baffle; 903, sealing gasket; 904, filter cage; 905, dust exhaust pipe; 906, stepping motor; 907, connecting pipe; 908, second baffle; 909, inner gear ring; 910, transmission gear; 911, outer gear ring; 10, air inlet pipe; 11, front cover; 12, drive motor; 13, rear cover; 14, air guide ring; 15, impeller; 16, clamping frame. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] As attached Figure 1 To Attachment Fig.12 As shown: The present invention provides a combined fan that is easy to disassemble and maintain, comprising a base frame 1, The shock-absorbing support seat 2 is fixed at the corner position of the bottom end of the base frame 1 to achieve shock absorption during the operation of the fan; A fixed frame 3 is fixed to one side of the top of the base frame 1, and a driving motor 12 is installed on the top of the fixed frame 3; The rear cover plate 13 is fixed to one side of the fixing frame 3, and the housing 4 can be detachably mounted on one side of the rear cover plate 13, and the front cover plate 11 can be detachably mounted on one side of the housing 4, and the front cover plate 11 can be detachably mounted on one side of the air guide ring 14; The air outlet pipe 6 is sleeved on the top of the housing 4; The flip structure 7 is arranged at the end of the output shaft of the driving motor 12, and an impeller blade 15 is installed on one side of the flip structure 7; The collecting structure 9 is arranged on the other side of the front cover plate 11 and is used to collect foreign matter generated by backblowing; A sealing structure 8, arranged on one side of the collecting structure 9, for blocking the pipeline; The air inlet pipe 10 is installed on one side of the sealing structure 8; A loading and unloading structure 5 is arranged on the outside of the housing 4 and is used to quickly disassemble the device for maintenance; In this embodiment, the device is supported by the base frame 1, and the main structure of the fan is composed of the outer shell 4, the rear cover plate 13, and the front cover plate 11. The loading and unloading structure 5 is used to realize the rapid loading and unloading of the outer shell 4, the front cover plate 11 and the flip structure 7, so as to facilitate the cleaning and maintenance of the internal structural parts of the fan. The drive motor 12 is started to make the impeller blades 15 generate airflow, and at the same time, the air outlet 6 guides the airflow to be discharged, and the air inlet pipe 10 introduces the airflow. The angle of the impeller blades 15 is adjusted by using the flip structure 7 to adjust the air volume and air pressure. The drive motor 12 is started to rotate in the opposite direction, and the sealing structure 8 can be used to seal the air inlet pipe 10, so that the collection structure 9 can collect backblown foreign matter.

[0023] like Figures 1 to 4 As shown, the loading and unloading structure 5 includes a second connection seat 506 fixed to the outside of the rear cover plate 13, a first connection seat 505 fixed to the outside of the front cover plate 11, a positioning groove 508 fixed to the outside of the housing 4, a positioning nut 507 inserted in the second connection seat 506, a quick release rod 501 threadedly connected to the inside of the positioning nut 507 and passing through the positioning groove 508, an eccentric pressure wheel 504 rotatably connected to one end of the quick release rod 501, and a eccentric pressure wheel 504 installed between the eccentric pressure wheel 504 and the first connection seat 505 and connected to the quick release rod 501. A spring seat 503 slidably connected to the dismantling rod 501, a mounting groove 502 respectively opened on one side of the rear cover plate 13 and one side of the front cover plate 11, a positioning ring 509 fixed on one side of the front cover plate 11, a positioning pin 510 fixed inside the positioning ring 509, a pressure ring 511 detachably mounted inside the positioning ring 509, a third connecting seat 512 fixed on one side of the pressure ring 511, a pressure block 513 rotatably connected to one side of the third connecting seat 512, and a pressure groove 514 arranged inside the flip structure 7.

[0024] In this embodiment, the fixation of the front cover plate 11, the outer shell 4 and the rear cover plate 13 is cancelled by rotating the eccentric pressure wheel 504 in the opposite direction, and the front cover plate 11 and the outer shell 4 can be disassembled as a whole, and the pressure ring 511 can be pulled away from the interior of the positioning ring 509 to facilitate the disassembly of the first fixed plate 701 and the rotating plate 702 and separate them from the output shaft of the drive motor 12.

[0025] Preferably, the flip structure 7 includes a mounting shell 712 installed on one side of the rear cover plate 13, a hollow hydraulic cylinder 711 fixed inside the mounting shell 712, a connecting block 703 rotatably connected to the outside of the mounting shell 712, a moving ring 710 installed at the telescopic end of the hollow hydraulic cylinder 711, a rotating ring 709 sleeved on the outside of the moving ring 710 and connected to the connecting block 703, a rotating plate 702 detachably mounted on the outside of the connecting block 703, a connecting groove 705 opened inside the rotating plate 702, a first guide groove 704 opened on the surface of the rotating plate 702, a first fixed plate 701 rotatably connected to one side of the rotating plate 702, a second guide groove 706 opened on the surface of the first fixed plate 701, a hexagonal block 713 fixed to the end of the output shaft of the drive motor 12, an inner hexagonal groove 707 opened inside one side of the first fixed plate 701 and engaged with the hexagonal block 713, and a moving rod 708 fixed to one side of the impeller blade 15 and slidably connected to the second guide groove 706.

[0026] In this embodiment, the hollow hydraulic cylinder 711 is started to push the movable ring 710 to move, so that the rotating ring 709 drives the rotating plate 702 to rotate, and the movable rod 708 slides inside the second guide groove 706 and the first guide groove 704, so as to adjust the placement angle of the impeller blade 15, and the connecting block 703 is separated from the connecting groove 705 by pulling, so as to facilitate the disassembly of the rotating plate 702.

[0027] Preferably, the pressing groove 514 is provided inside one side of the first fixing plate 701 , and a plug-in structure is formed between the pressing groove 514 and the pressing block 513 .

[0028] In this embodiment, the pressing groove 514 and the pressing block 513 form a plug-in structure, and the driving motor 12 and the flip structure 7 can be separated by a direct plug-in operation.

[0029] Preferably, the positioning pins 510 are distributed in a circular shape with equal intervals on the inner side of the positioning ring 509 , and through holes matching the positioning pins 510 are provided inside the pressure ring 511 and the air guide ring 14 .

[0030] In this embodiment, the positioning pin 510, the pressure ring 511, and the through hole of the air guide ring 14 form a three-point positioning mechanism to ensure that the installation position is accurate and not easily misplaced.

[0031] Preferably, a spiral slide rail is provided inside the rotating ring 709, a slide groove matching the spiral slide rail is provided on the outside of the moving ring 710, a plane bearing is installed between the moving ring 710 and the hollow hydraulic cylinder 711, the moving rod 708 passes through the second guide groove 706 and extends to the inside of the first guide groove 704, and a sliding structure is formed between the moving rod 708 and the first guide groove 704.

[0032] In this embodiment, the spiral slide rail of the rotating ring 709 and the matching slide groove of the movable ring 710 form a spiral transmission, which cooperates with the linear drive of the hollow hydraulic cylinder 711 to realize the compound conversion of rotational motion and linear motion. The establishment of the plane bearing allows the movable ring 710 to rotate simultaneously with the first fixed plate 701 and the rotating plate 702.

[0033] Preferably, the collecting structure 9 includes a connecting pipe 907 fixed on one side of the front cover plate 11, a dust exhaust pipe 905 installed at the bottom end of the connecting pipe 907, a filter cage 904 slidably connected to the inside of the bottom end of the dust exhaust pipe 905, a sealing gasket 903 installed at the top of the filter cage 904, a fixed shell 901 fixed on one side of the connecting pipe 907, a stepper motor 906 installed on one side of the fixed shell 901, an inner gear ring 909 rotatably connected to the inner wall of the fixed shell 901, a transmission gear 910 installed at the end of the output shaft of the stepper motor 906 and meshingly connected to the inner gear ring 909, an outer gear ring 911 rotatably connected to the inside of one side of the fixed shell 901 and meshingly connected to the transmission gear 910, a second baffle 908 slidably connected to one side of the inside of the connecting pipe 907, and a first baffle 902 slidably connected to the other side of the inside of the connecting pipe 907 and connected to the transmission gear 910.

[0034] In this embodiment, the stepper motor 906 drives the transmission gear 910 to rotate, so that the inner gear ring 909 and the outer gear ring 911 simultaneously drive the first baffle 902 and the second baffle 908 to separate, and the dust exhaust pipe 905 is opened. At the same time, the sealing structure 8 seals the air inlet pipe 10, so that the recoil foreign matter and the airflow enter the interior of the dust exhaust pipe 905, and the filter cage 904 filters the air leaving the dust exhaust pipe 905 to intercept and capture foreign matter in the air.

[0035] Preferably, the sealing structure 8 includes a transmission plate 805 fixed on one side of the outer gear ring 911 and connected to the second baffle 908, a third guide groove 806 opened inside the transmission plate 805, a movable shaft 804 slidably connected inside the third guide groove 806, a baffle 803 fixed on the outside of the movable shaft 804, a slider 807 fixed on one side of the baffle 803, a second fixed plate 801 arranged on one side of the baffle 803, and a fourth guide groove 802 opened inside one side of the second fixed plate 801 and slidably connected to the slider 807.

[0036] In this embodiment, the outer gear ring 911 drives the transmission plate 805 to rotate, so that the multiple groups of moving shafts 804 drive the blocking piece 803 to move toward the center of the pipeline, thereby sealing the air inlet pipe 10 to block the flow of gas.

[0037] Preferably, the first baffle 902 extends to the interior of the fixed shell 901 and is connected to the inner gear ring 909, the second baffle 908 is connected to the transmission plate 805 and the outer gear ring 911, and the front cross section of the filter cage 904 is a funnel-shaped inclined structure.

[0038] In this embodiment, during the rotation of the inner gear ring 909 and the outer gear ring 911, the first baffle 902 and the second baffle 908 are simultaneously driven to move, the dust exhaust pipe 905 is opened, and the inclined structure of the filter cage 904 increases the surface area, significantly improving the filtering efficiency.

[0039] Preferably, a sliding connection is formed between the movable shaft 804 and the third guide groove 806 , and the third guide groove 806 is distributed in a circular shape with equal intervals inside the transmission plate 805 . A clamping frame 16 connected to the front cover plate 11 is installed on one side of the second fixed plate 801 .

[0040] In this embodiment, multiple sets of movable shafts 804 are simultaneously driven to move by multiple sets of third guide grooves 806, so that multiple sets of blocking plates 803 move toward the center of the pipeline, thereby sealing the air inlet pipe 10, and the position of the second fixing plate 801 is pressed and fixed by the clamping frame 16.

[0041] The specific method of using the present invention is as follows: the device is placed in the use position, and the air outlet pipe 6 and the air inlet pipe 10 are connected to the ventilation pipeline, the device is supported by the base frame 1, and the shock-absorbing support seat 2 effectively absorbs the operation vibration, significantly reducing the vibration effect of the fan on the surrounding environment, and the fan main structure is composed of the shell 4, the rear cover plate 13, and the front cover plate 11. The loading and unloading structure 5 is used to realize the rapid loading and unloading of the shell 4, the front cover plate 11 and the flip structure 7, so as to facilitate the cleaning and maintenance of the internal structural parts of the fan, and the drive motor 12 is started to make the drive motor 12 drives the impeller blade 15 to rotate through the flip structure 7, so that the impeller blade 15 generates airflow, and at the same time, the air outlet pipe 6 guides the airflow to be discharged, and the air inlet pipe 10 introduces the airflow. The angle of the impeller blade 15 is adjusted by using the flip structure 7 to adjust the air volume and air pressure, and the drive motor 12 is started to rotate in the opposite direction to back-blow and clean the inside of the fan and the ventilation pipeline. The sealing structure 8 can be used to seal the air inlet pipe 10 so that the collection structure 9 can collect back-blown foreign matter. The air guide ring 14 is used to optimize the airflow path, and the compression frame 16 is used to reinforce the position of the sealing structure 8; The installation of the housing 4 is guided by the installation groove 502, so that during the installation process, the front cover plate 11, the housing 4 and the rear cover plate 13 are aligned to prevent misalignment and improve the sealing effect of the connection. The positioning nut 507 is inserted into the interior of the second connection seat 506, and the quick release rod 501 is inserted into the positioning groove 508 and the interior of the first connection seat 505 to limit the installation position of the quick release rod 501, so that the position of the quick release rod 501 is not easily offset after installation. The positioning nut 507 is rotated to prevent the quick release rod 501 from being displaced. 07 Pull the quick release rod 501 to move toward the rear cover plate 13, adjust the distance between the eccentric pressure wheel 504 and the first connecting seat 505, press the eccentric pressure wheel 504 to rotate so that the eccentric pressure wheel 504 generates pressure by the eccentric principle, and presses the first connecting seat 505 through the spring seat 503, tightening and fixing the position between the front cover plate 11, the housing 4 and the rear cover plate 13, and at the same time, the front cover plate 11 passes through the positioning ring 509 to press the pressure ring 511, the pressure block 513, the first fixed plate 701, and the rotating plate 70 2 to ensure normal use, and increase the friction between the eccentric pressure wheel 504 and the first connecting seat 505 through the elastic deformation of the spring seat 503 to prevent the first connecting seat 505 from loosening due to vibration or impact. When disassembling, the eccentric pressure wheel 504 is rotated in the opposite direction to cancel the fixation of the front cover plate 11, the shell 4 and the rear cover plate 13, and then the quick release rod 501 is taken out from the first connecting seat 505 and the positioning groove 508, so that the front cover plate 11 and the shell 4 can be disassembled as a whole, and the front cover plate 11 and the shell 4 can be disassembled by pulling. The dynamic pressure ring 511 leaves the interior of the positioning ring 509 to facilitate the disassembly of the air guide ring 14, and the pressure block 513 is pulled out from the interior of the pressure groove 514 to release the pressure of the pressure ring 511 on the first fixed plate 701 and the rotating plate 702, so that the first fixed plate 701 and the rotating plate 702 can be disassembled and separated from the output shaft of the driving motor 12, thereby cleaning and maintaining the impeller blades 15, and the air guide ring 14 and the pressure ring 511 are positioned by the positioning pin 510 to prevent the installation from deviation; By starting the hollow hydraulic cylinder 711 to extend, the hollow hydraulic cylinder 711 pushes the moving ring 710 to move, and then the rotating ring 709 slides on the surface of the moving ring 710, converting the linear motion into rotational motion, and the rotating ring 709 drives the connecting block 703 to rotate, and then the connecting block 703 drives the rotating plate 702 to rotate on one side of the first fixed plate 701 through the connecting groove 705, thereby driving the moving rod 708 to slide inside the second guide groove 706 and the first guide groove 704, so that the impeller blade 15 rotates on the surface of the first fixed plate 701, and the placement angle of the impeller blade 15 is adjusted, and the connecting block 703 is separated from the connecting groove 705 by pulling, so as to facilitate the disassembly of the rotating plate 702, and the output shaft of the driving motor 12 is connected to the first fixed plate 701 by inserting the hexagonal block 713 into the inner hexagonal groove 707, so that the driving motor 12 drives the first fixed plate 701 and the impeller blade 15 to rotate, and at the same time, during disassembly, it is convenient to pull the first fixed plate 701 and the output shaft of the driving motor 12 to separate; By starting the stepper motor 906 to rotate, the stepper motor 906 drives the transmission gear 910 to rotate, and at the same time, the transmission gear 910 drives the inner gear ring 909 and the outer gear ring 911 to rotate in the opposite direction through the meshing of the teeth, and the inner gear ring 909 drives the first baffle 902 to rotate forward on the inner wall of the connecting tube 907, and the outer gear ring 911 drives the second baffle 908 to rotate reversely on the inner wall of the connecting tube 907 through the transmission plate 805, so that the first baffle 902 is separated from the second baffle 908, and the dust exhaust pipe 905 is opened. At the same time, the outer gear ring 911 drives the transmission plate 805 to rotate and change the position of the third guide groove 806, so that the moving shaft 804 is forced to slide along the third guide groove 806, so that the multiple groups of moving shafts 804 drive the baffles 80 3 moves toward the center of the pipeline to seal the air inlet pipe 10 to block the circulation of gas, and at the same time, the slider 807 slides inside the fourth guide groove 802 to ensure that the blocking piece 803 moves smoothly and accurately, and the drive motor 12 is started to rotate in the opposite direction to back-blow and clean the ventilation pipeline, and at the same time, the foreign matter is back-flushed into the inside of the connecting pipe 907. Due to the obstruction of the blocking piece 803, the air flow and the foreign matter enter the inside of the dust exhaust pipe 905, and the filter cage 904 filters the air leaving the dust exhaust pipe 905, intercepts and captures the foreign matter in the air, and pulls the filter cage 904 horizontally to separate the filter cage 904 from the dust exhaust pipe 905, so as to clean the inside of the filter cage 904, and seals the connection between the filter cage 904 and the dust exhaust pipe 905 through the sealing gasket 903.

[0042] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A modular fan that is easy to disassemble and maintain, comprising a base frame (1), characterized in that: A shock-absorbing support seat (2) is fixed at a corner position at the bottom end of the base frame (1) to achieve shock absorption during the operation of the fan; A fixed frame (3) is fixed to one side of the top end of the base frame (1), and a driving motor (12) is installed at the top end of the fixed frame (3); A rear cover plate (13) is fixed to one side of the fixing frame (3), and the housing (4) can be detachably mounted on one side of the rear cover plate (13), a front cover plate (11) can be detachably mounted on one side of the housing (4), and the front cover plate (11) can be detachably mounted on one side of the air guide ring (14); An air outlet pipe (6) is sleeved on the top of the housing (4); The flip structure (7) is arranged at the end of the output shaft of the driving motor (12), and an impeller blade (15) is installed on one side of the flip structure (7); A collecting structure (9) is arranged on the other side of the front cover plate (11) and is used to collect foreign matter generated by backblowing; A sealing structure (8) is arranged on one side of the collecting structure (9) and is used to block the pipeline; An air inlet pipe (10) is installed on one side of the sealing structure (8); The loading and unloading structure (5) is arranged on the outside of the housing (4) and is used to quickly disassemble the device for maintenance.

2. The easily disassembled and maintained combined fan according to claim 1 is characterized in that: The loading and unloading structure (5) comprises a second connection seat (506) fixed on the outside of the rear cover plate (13), a first connection seat (505) fixed on the outside of the front cover plate (11), a positioning groove (508) fixed on the outside of the housing (4), a positioning nut (507) inserted into the second connection seat (506), a quick release rod (501) threadedly connected to the inside of the positioning nut (507) and passing through the positioning groove (508), an eccentric pressure wheel (504) rotatably connected to one end of the quick release rod (501), and a first connection seat (505) installed between the eccentric pressure wheel (504) and the first connection seat (505) and connected to the quick release rod (501). A spring seat (503) slidably connected to the rod (501), a mounting groove (502) respectively provided on one side of the rear cover plate (13) and one side of the front cover plate (11), a positioning ring (509) fixed to one side of the front cover plate (11), a positioning pin (510) fixed inside the positioning ring (509), a pressure ring (511) detachably mounted inside the positioning ring (509), a third connecting seat (512) fixed to one side of the pressure ring (511), a pressure block (513) rotatably connected to one side of the third connecting seat (512), and a pressure groove (514) provided inside the flip structure (7).

3. The easily disassembled and maintained combined fan according to claim 1 is characterized in that: The flip structure (7) comprises a mounting shell (712) mounted on one side of the rear cover plate (13), a hollow hydraulic cylinder (711) fixed inside the mounting shell (712), a connecting block (703) rotatably connected to the outside of the mounting shell (712), a moving ring (710) mounted on the telescopic end of the hollow hydraulic cylinder (711), a rotating ring (709) sleeved on the outside of the moving ring (710) and connected to the connecting block (703), a rotating plate (702) detachably mounted on the outside of the connecting block (703), and a connecting groove (709) provided inside the rotating plate (702). 05), a first guide groove (704) provided on the surface of the rotating plate (702), a first fixed plate (701) rotatably connected to one side of the rotating plate (702), a second guide groove (706) provided on the surface of the first fixed plate (701), a hexagonal block (713) fixed to the end of the output shaft of the driving motor (12), an inner hexagonal groove (707) provided inside one side of the first fixed plate (701) and engaged with the hexagonal block (713), and a moving rod (708) fixed to one side of the impeller blade (15) and slidably connected to the second guide groove (706).

4. The easily disassembled and maintained combined fan according to claim 2 is characterized in that: The pressing groove (514) is opened inside one side of the first fixing plate (701), and a plug-in structure is formed between the pressing groove (514) and the pressing block (513).

5. The easily disassembled and maintained combined fan according to claim 2 is characterized in that: The positioning pins (510) are distributed in a circular shape at equal intervals on the inner side of the positioning ring (509), and through holes matching the positioning pins (510) are provided inside the pressure ring (511) and the air guide ring (14).

6. The easily disassembled and maintained combined fan according to claim 3 is characterized in that: A spiral slide rail is provided inside the rotating ring (709), a slide groove matching the spiral slide rail is provided on the outside of the moving ring (710), a plane bearing is installed between the moving ring (710) and the hollow hydraulic cylinder (711), the moving rod (708) passes through the second guide groove (706) and extends to the inside of the first guide groove (704), and a sliding structure is formed between the moving rod (708) and the first guide groove (704).

7. The easily disassembled and maintained combined fan according to claim 1 is characterized in that: The collecting structure (9) comprises a connecting pipe (907) fixed to one side of the front cover plate (11), a dust exhaust pipe (905) installed at the bottom end of the connecting pipe (907), a filter cage (904) slidably connected to the inside of the bottom end of the dust exhaust pipe (905), a sealing gasket (903) installed at the top of the filter cage (904), a fixed shell (901) fixed to one side of the connecting pipe (907), a stepping motor (906) installed at one side of the fixed shell (901), and a stepping motor (906) rotatably connected to the inner wall of the fixed shell (901). an inner gear ring (909) on the stepper motor (906), a transmission gear (910) mounted on the end of the output shaft of the stepper motor (906) and meshingly connected to the inner gear ring (909), an outer gear ring (911) rotatably connected to the inside of one side of the fixed housing (901) and meshingly connected to the transmission gear (910), a second baffle plate (908) slidably connected to one side of the inside of the connecting tube (907), and a first baffle plate (902) slidably connected to the other side of the inside of the connecting tube (907) and connected to the transmission gear (910).

8. The easily disassembled and maintained combined fan according to claim 1 is characterized in that: The sealing structure (8) comprises a transmission plate (805) fixed to one side of the outer gear ring (911) and connected to the second baffle plate (908), a third guide groove (806) provided inside the transmission plate (805), a moving shaft (804) slidably connected inside the third guide groove (806), a baffle plate (803) fixed to the outside of the moving shaft (804), a sliding block (807) fixed to one side of the baffle plate (803), a second fixed plate (801) provided on one side of the baffle plate (803), and a fourth guide groove (802) provided inside one side of the second fixed plate (801) and slidably connected to the sliding block (807).

9. The easily disassembled and maintained combined fan according to claim 7, characterized in that: The first baffle (902) extends to the interior of the fixed shell (901) and is connected to the inner gear ring (909); the second baffle (908) is connected to the transmission plate (805) and the outer gear ring (911); and the front cross section of the filter cage (904) presents a funnel-shaped inclined structure.

10. The easily disassembled and maintained combined fan according to claim 8, characterized in that: The movable shaft (804) and the third guide groove (806) are slidably connected, and the third guide grooves (806) are distributed in a circular shape with equal spacing inside the transmission plate (805). A pressing frame (16) connected to the front cover plate (11) is installed on one side of the second fixed plate (801).

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