Centrifugal fan for adhesive processing
By designing a filtration system with a cover, mounting plate, filter element, and clamping device in a centrifugal fan for adhesive processing, the problems of poor filtration effect and inconvenient maintenance in the prior art are solved, achieving gas purification and equipment stability.
Patent Information
- Application Number
- CN202520769217.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing centrifugal fans used for adhesive processing lack effective pre-filtration devices, which makes it easy for impurities and particulate matter to enter the system, causing pipe blockage, inconvenient filter element maintenance, and poor installation structure stability, thus posing safety hazards.
A filtration system comprising a mounting cover, mounting plate, filter element, locking device, and limiting mechanism was designed. A quick-assembly and disassembly system composed of locking rods, locking sleeves, and control sleeves, combined with a reliable locking system constructed by limiting blocks and shifting springs, was designed to achieve effective gas filtration and convenient assembly and disassembly.
It improves filtration efficiency, avoids pipe blockage and equipment damage, simplifies filter cartridge maintenance, and enhances equipment stability and safety.
Smart Images
Figure CN223894469U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to centrifugal fan for adhesive processing technical field more specifically, it relates to a centrifugal fan for adhesive processing. BACKGROUND
[0002] In the field of adhesive processing technology, the filtering effect, maintenance convenience and structural stability of centrifugal fan directly affect the production safety and equipment performance, however, the centrifugal fan on the current market still has many technical defects in practical application, these problems not only affect the gas purification effect, but also may cause equipment failure and safety hazard.
[0003] Adhesive in the production and processing process will produce a large number of toxic and harmful gases, so the centrifugal fan for adhesive processing is needed to extract the toxic and harmful gases generated, the filtering scheme in the prior art has significant defects: first, there is no effective prefiltering device, impurities and particulate matter are easy to enter the system, the pipeline is easy to be blocked, and the fan is easy to be polluted, this simple extraction method not only reduces the service life of the equipment, but also increases the maintenance cost, seriously affects the equipment performance and operation safety.
[0004] More prominent is the inconvenience of filter core maintenance, the filter core is usually installed in the inside of the mounting plate and the mounting cover in the prior art, but there are serious problems: first, the assembly and disassembly operation between the mounting cover and the mounting plate is complicated, resulting in complex filter core dismounting structure; second, professional tools are needed in the dismounting process; third, the operation steps are complicated and time-consuming; fourth, the maintenance efficiency is seriously low; finally, the deficiencies of this design not only prolong the maintenance time, but also increase the labor intensity, reduce the maintenance efficiency and use convenience of the equipment.
[0005] Especially critical is the poor stability of the mounting structure, although some equipment realizes quick dismounting through improvement, there are serious problems: first, the connection structure is too simple, and the strength is insufficient, so that the airflow impact can easily cause the mounting structure to loosen; second, the vibration of the fan operation can cause the parts to loosen and shift, and long-term use can cause the mounting structure to loosen and fall off, this structural defect not only affects the filtering effect, but also can cause system failure due to the falling off of the filter core, which not only reduces the equipment reliability, but also increases the safety hazard. INVENTION CONTENTS
[0006] (I) technical problems solved
[0007] In view of the problems in the prior art, the utility model provides a centrifugal fan for adhesive processing to solve the technical problems mentioned in the background art.
[0008] (II) technical scheme
[0009] To achieve the above object, the utility model provides following technical scheme: an adhesive processing centrifugal fan, including fan, the one side of fan is provided with filter equipment, the filter equipment includes installation cover, mounting plate and filter core, the installation cover sets up in mounting plate one side, the filter core sets up in the inside of installation cover, the one side of mounting plate is installed with clamping device, the clamping device includes clamping rod, clamping sleeve, control sleeve, clamping groove, clamping block, release block and release groove, the clamping sleeve is detachable sleeve and sets up clamping rod outside, the control sleeve rotation is installed in clamping sleeve outside, the clamping groove is set up in clamping rod outside, the clamping block is clamped into clamping groove, the release block is connected in clamping block one end, the release groove is set up in control sleeve, the clamping sleeve outside is installed with limiting mechanism, the limiting mechanism includes limiting block, shift spring, reset plate, reset groove, reset hole, support rod, support plate, limiting sleeve and shift block, the limiting block fixed mounting is in clamping sleeve outside, the shift spring both ends are connected with adjacent two shift blocks, the reset plate rotation is installed in clamping sleeve outside, the reset groove is set up on reset plate, the reset hole is set up in reset groove one end, the support rod fixed connection is in limiting sleeve one side, the support plate is fixedly arranged on the support rod, the limiting sleeve is slidably set in clamping sleeve outside, the shift block sets up in control sleeve one side.
[0010] The utility model further sets up, installation cover side wall sets up with a plurality of air inlet grooves, the one side of mounting plate is connected with the connecting pipe, the other end of connecting pipe is connected with fan input end.
[0011] The utility model further sets up, the both sides of filter core are equipped with the washer, the washer is detachably installed in the inside of installation cover and the one side of mounting plate respectively.
[0012] The utility model further sets up, the one side of mounting plate is fixed with support sleeve, and the one end of support sleeve abuts in the inner wall of installation cover.
[0013] The utility model further sets up, the one side of control sleeve is fixed with a plurality of shift rails, the one side of shift block sets up with shift groove, shift groove is matched with shift rail, ensures the stable movement of shift block.
[0014] The utility model further sets up, the one side of limiting sleeve is connected with support spring, and the other end of support spring is contact type connection with reset plate, guarantees the stable reset of limiting sleeve.
[0015] The utility model further sets up, the inside of clamping sleeve movably is equipped with spring, the other section of spring is connected with the one side of clamping block, has guaranteed the stable use of clamping block and release block.
[0016] The utility model further sets up, the one side of shift block rotation is equipped with shift wheel, and the shift wheel is clamped into between corresponding two limiting blocks, makes the operation more smooth.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, the adhesive processing centrifugal fan has the following beneficial effects:
[0019] 1. The filter device constructs a filter system through the precise cooperation of the mounting cover, the mounting plate and the filter core, the design of the air inlet groove provides a gas channel, the cooperation of the filter core and the gasket realizes sealed filtration, and the setting of the connecting pipe ensures gas delivery. This structure not only realizes effective blocking of particulate matter and impurities through pre-filtering, but also prevents the escape of pollutants through the sealing gasket, and ensures smooth gas delivery through the connecting pipe, effectively solving the problems of pipeline blockage and equipment damage caused by the lack of pre-filtering in traditional equipment, improving the filtering effect and realizing gas purification.
[0020] 2. The clamping device forms a quick disassembly and assembly system through the cooperative work of the clamping rod, the clamping sleeve, the control sleeve, the clamping groove, the clamping block, the release block and the release groove. The design of the clamping sleeve and the clamping rod provides a connection basis, the cooperation of the clamping block and the clamping groove realizes clamping and locking, and the setting of the release block and the release groove ensures convenient disassembly and assembly. This structure not only realizes quick connection of the mounting cover and the mounting plate through the clamping mechanism, but also provides convenient disassembly through the release mechanism, and ensures stable assembly through the elastic structure, effectively solving the problems of complicated disassembly and assembly and tool dependence of traditional equipment, improving the maintenance efficiency and realizing convenient operation.
[0021] 3. The limiting mechanism constructs a reliable locking system through the precise cooperation of the limiting block, the displacement spring, the reset plate, the reset groove, the reset hole, the supporting rod, the supporting plate, the limiting sleeve and the displacement block. The design of the reset plate provides a locking basis, the cooperation of the displacement block and the limiting block realizes position fixation, and the setting of the supporting spring ensures automatic reset. This structure not only realizes stable fixation of the clamping structure through multiple locking, but also provides automatic reset through the elastic mechanism, and ensures reliable locking through the limiting structure, effectively solving the problem of loosening of the connecting structure of traditional equipment under the influence of airflow impact and vibration, adapting to long-term operation and ensuring continuous stability. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of the adhesive processing centrifugal fan in the utility model;
[0023] Figure 2 It is a schematic diagram of the dispersed structure of the mounting cover and the mounting plate part in the utility model;
[0024] Figure 3 It is a schematic diagram of the dispersed structure of the clamping device and the limiting mechanism part in the utility model;
[0025] Figure 4 It is the cross section structure schematic view of the clamping device and the limiting mechanism part in the utility model.
[0026] Figure 5 It is the cross section structure schematic view of the control sleeve part in the utility model.
[0027] In the drawing: 1, fan; 2, mounting cover; 3, mounting plate; 4, filter core; 5, clamping rod; 6, clamping sleeve; 7, control sleeve; 8, clamping groove; 9, clamping block; 10, release block; 11, release groove; 12, limiting block; 13, displacement spring; 14, reset plate; 15, reset groove; 16, reset hole; 17, support rod; 18, support plate; 19, limiting sleeve; 20, displacement block; 21, air inlet groove; 22, connecting pipe; 23, gasket; 24, support sleeve; 25, displacement rail; 26, displacement groove; 27, support spring; 28, spring; 29, displacement wheel. DETAILED DESCRIPTION
[0028] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as that generally understood by ordinary skilled in the art to which the present application belongs.
[0030] In the present application, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction, unless otherwise specified. Similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings, and "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.
[0031] Please refer to Figures 1-5A centrifugal fan for adhesive processing includes a fan 1. A filter device is provided on one side of the fan 1. The filter device includes a mounting cover 2, a mounting plate 3, and a filter element 4. The mounting cover 2 is located on one side of the mounting plate 3, and the filter element 4 is located inside the mounting cover 2. A locking device is installed on one side of the mounting plate 3. The locking device includes a locking rod 5, a locking sleeve 6, a control sleeve 7, a locking groove 8, a locking block 9, a release block 10, and a release groove 11. The locking sleeve 6 is detachably fitted onto the outside of the locking rod 5. The control sleeve 7 is rotatably installed on the outside of the locking sleeve 6. The locking groove 8 is opened on the outside of the locking rod 5. The locking block 9 is inserted into the locking groove 8. The release block 10 is connected to one end of the locking block 9. The release groove 11 is opened on the control sleeve 7. In the middle, a limiting mechanism is installed on the outside of the locking sleeve 6. The limiting mechanism includes a limiting block 12, a shifting spring 13, a reset plate 14, a reset groove 15, a reset hole 16, a support rod 17, a support plate 18, a limiting sleeve 19, and a shifting block 20. The limiting block 12 is fixedly installed on the outside of the locking sleeve 6. The two ends of the shifting spring 13 are connected to two adjacent shifting blocks 20. The reset plate 14 is rotatably installed on the outside of the locking sleeve 6. The reset groove 15 is opened on the reset plate 14. The reset hole 16 is opened at one end of the reset groove 15. The support rod 17 is fixedly connected to one side of the limiting sleeve 19. The support plate 18 is fixedly set on the support rod 17. The limiting sleeve 19 is slidably sleeved on the outside of the locking sleeve 6. The shifting block 20 is set on one side of the control sleeve 7.
[0032] The side wall of the mounting cover 2 has multiple air inlet slots 21, and a connecting pipe 22 is connected to one side of the mounting plate 3. The other end of the connecting pipe 22 is connected to the input end of the fan 1.
[0033] The filter element 4 has gaskets 23 on both sides, and the gaskets 23 can be detachably installed on the inside of the mounting cover 2 and on one side of the mounting plate 3.
[0034] A support sleeve 24 is fixedly provided on one side of the mounting plate 3, and one end of the support sleeve 24 abuts against the inner wall of the mounting cover 2.
[0035] In this embodiment, when the device is needed, the fan 1 is turned on and runs. Then, the exhaust gas enters the mounting cover 2 through the air inlet slot 21. Then, it is filtered by the side wall of the filter element 4, which blocks particulate matter and impurities on the outside of the filter element 4. Then, the gas enters the inside of the filter element 4. The gaskets 23 set on both sides of the filter element 4 are sealing gaskets to prevent particulate matter and impurities from escaping into the inside of the filter element 4. Then, the exhaust gas that enters the inside of the filter element 4 will enter the connecting pipe 22 for transportation. Then, the exhaust gas is transported to the subsequent processing steps through the output end of the fan 1. Through pre-filtration, the blockage of the pipe and the damage to the fan 1 are effectively avoided.
[0036] Please see Figures 3-5 As a further implementation of the overall equipment: a plurality of shift rails 25 are fixedly provided on one side of the control sleeve 7, and a shift groove 26 is provided on one side of the shift block 20, the shift groove 26 being adapted to the shift rails 25.
[0037] A spring 27 is connected to one side of the limiting sleeve 19, and the other end of the spring 27 is in contact with the reset plate 14.
[0038] A spring 28 is movably provided inside the locking sleeve 6, and the other end of the spring 28 is connected to one side of the locking block 9.
[0039] A shifting wheel 29 is provided on one side of the shifting block 20, and the shifting wheel 29 is engaged between the two corresponding limit blocks 12.
[0040] More specifically, when maintenance or replacement of filter element 4 is required, or when cleaning the inside of mounting cover 2 is needed, filter element 4 must first be removed. First, rotate reset plate 14 clockwise, causing reset hole 16 and reset groove 15 to rotate clockwise. When reset hole 16 rotates to a position concentric with support plate 18, push limit sleeve 19. Limit sleeve 19 causes support rod 17 and support plate 18 to slide into reset hole 16. Then, limit sleeve 19 and reset plate 14 cooperate to compress support spring 27. When support spring 27 is compressed to its limit, a support plate 18 near limit sleeve 19 just completely passes through reset hole 16 and moves to the other side of reset plate 14. Then, rotate reset plate 14 counterclockwise, causing reset hole 16 and reset groove 15 to rotate counterclockwise. The rear support rod 17 enters the reset groove 15. Then, the support rod 17 and the corresponding support plate 18 cooperate to limit the limiting sleeve 19 to one side of the reset plate 14, so that the limiting sleeve 19 no longer limits the outer side of the shifting wheel 29. Then, the control sleeve 7 rotates forward. The control sleeve 7 drives the shifting block 20 to rotate forward through the shifting rail 25 and the shifting groove 26. Then, the shifting block 20 will drive the shifting wheel 29 on one side to roll out between the two limiting blocks 12. Then, the shifting wheel will drive the shifting block 20 to slide outward along the shifting rail 25 and the shifting groove 26. Then, the shifting block 20 will drive the shifting spring 13 to stretch outward. At the same time, the control sleeve 7 will drive the release groove 11 opened on the inner side to rotate forward. Then, the release block 10 slides outward in the release groove 11 and drives the locking block 9 to gradually release from the locking position. The retaining block 9 disengages from groove 8, simultaneously pressing the spring 28 connected to one side. Then, the retaining sleeve 6 and retaining rod 5 are pulled to both sides, thus separating them. Repeat the above steps to separate the other retaining sleeves 6 and retaining rods 5. Next, remove the mounting cover 2 from one side of the mounting plate 3. Then, remove the filter element 4 for maintenance and replacement. After maintenance and replacement, place the filter element 4 inside the mounting cover 2, ensuring one end of the filter element 4 is flush with the gasket 23 inside the mounting cover 2. Then, install the mounting cover 2 on one side of the mounting plate 3, ensuring the gasket 23 on one side of the mounting plate 3 is flush with the other side of the filter element 4, and that the hole inside the support sleeve 24 is concentric with the hole on the mounting cover 2. Finally, pass the retaining rod 5 through from one side. From the other side, the locking sleeve 6 is fitted onto the outside of the locking rod 5. Then, the control sleeve 7 is rotated in the opposite direction. The control sleeve 7 drives the shift block 20 and the shift wheel 29 to rotate in the opposite direction via the shift rail 25 and the shift groove 26. Then, the spring 28 resets and pushes the locking block 9 to gradually engage in the locking groove 8. The locking block 9 drives the release block 10 to slide and reset along the release groove 11. When the locking block 9 is fully engaged in the locking groove 8, the control sleeve 7 cannot rotate. The shift rail 25 and the shift groove 26 just drive the shift block 20 to rotate between the two original limiting blocks 12. Then, the shift block 20 drives the shift wheel 29 to engage between the original limiting blocks 12. Then, the reset plate 14 is rotated in the forward direction again, so that the reset plate 14 drives the reset hole 16 and the reset groove 15 to rotate in the forward direction again.When the reset hole 16 rotates back to the position concentric with the support plate 18, the support spring 27 pushes the limiting sleeve 19 to slide and reset. Then, the limiting sleeve 19 drives the support plate 18 to slide and reset via the support rod 17. When the support spring 27 is fully reset, the support plate 18 at the top of the support rod 17 moves back to the original side of the reset plate 14. Then, the reset plate 14 continues to rotate, causing the reset hole 16 and the reset groove 15 to rotate to a position that does not correspond to the support rod 17 and the support plate 18. Then, the support rod 17, in conjunction with the top support plate 18, supports the limiting sleeve 19 to one side, preventing the limiting sleeve 19 from sliding. Then, the inner wall of the limiting sleeve 19 limits the outer side of the shift wheel 29, preventing the shift wheel 29 and the shift block 20 from sliding outward, thus limiting the rotation of the control sleeve 7 and preventing the control sleeve 7 from rotating, thereby ensuring the stability of the installation structure.
[0041] In summary, when the equipment is in use or running: when the equipment needs to be used, turn on the fan 1, the fan 1 runs, and then the exhaust gas enters the mounting cover 2 through the air inlet slot 21. Then, it is filtered by the side wall of the filter element 4, which blocks particulate matter and impurities on the outside of the filter element 4. Then the gas enters the inside of the filter element 4. The gaskets 23 set on both sides of the filter element 4 are sealing gaskets to prevent particulate matter and impurities from escaping into the inside of the filter element 4. Then the exhaust gas that enters the inside of the filter element 4 will enter the connecting pipe 22 for transportation. Then the exhaust gas is transported to the subsequent treatment process through the output end of the fan 1. Through pre-filtration, the blockage of the pipeline and the damage to the fan 1 are effectively avoided.
[0042] When maintenance or replacement of filter element 4 is required, or when cleaning the inside of mounting cover 2 is needed, filter element 4 must be removed first. First, rotate reset plate 14 clockwise, causing reset hole 16 and reset groove 15 to rotate clockwise. When reset hole 16 rotates to a position concentric with support plate 18, push limit sleeve 19. Limit sleeve 19 causes support rod 17 and support plate 18 to slide into reset hole 16. Then, limit sleeve 19 and reset plate 14 cooperate to compress support spring 27. When support spring 27 is compressed to its limit, a support plate 18 near limit sleeve 19 just completely passes through reset hole 16 and moves to the other side of reset plate 14. Then, rotate reset plate 14 counterclockwise, causing reset hole 16 and reset groove 15 to rotate counterclockwise. Then, support rod 17... 7 enters the reset groove 15, and then the support rod 17 and the corresponding support plate 18 cooperate to limit the limiting sleeve 19 to one side of the reset plate 14, so that the limiting sleeve 19 no longer limits the outside of the shift wheel 29. Then, the control sleeve 7 is rotated in the forward direction. The control sleeve 7 drives the shift block 20 to rotate in the forward direction through the shift rail 25 and the shift groove 26. Then, the shift block 20 will drive the shift wheel 29 on one side to roll out between the two limiting blocks 12. Then, the shift wheel will drive the shift block 20 to slide outward along the shift rail 25 and the shift groove 26. Then, the shift block 20 will drive the shift spring 13 to stretch outward. At the same time, the control sleeve 7 will drive the release groove 11 opened on the inner side to rotate in the forward direction. Then, the release block 10 slides outward in the release groove 11 and drives the locking block 9 to gradually move out of the locking groove 8. The locking block 9 detaches from the middle, simultaneously pressing the spring 28 connected to one side. Then, the locking sleeve 6 and locking rod 5 are pulled to both sides respectively, thus separating the locking sleeve 6 and locking rod 5. Then, follow the above steps to separate the other locking sleeves 6 and locking rods 5. Then, remove the mounting cover 2 from one side of the mounting plate 3, and then remove the filter element 4 for maintenance and replacement. After maintenance and replacement, place the filter element 4 inside the mounting cover 2, ensuring that one end of the filter element 4 is in contact with the washer 23 provided inside the mounting cover 2. Then, install the mounting cover 2 on one side of the mounting plate 3, ensuring that the washer 23 provided on one side of the mounting plate 3 is in contact with the other side of the filter element 4, and that the hole on the inside of the support sleeve 24 is concentric with the hole on the mounting cover 2. Then, pass the locking rod 5 through from one side and from... On the other side, the locking sleeve 6 is fitted onto the outside of the locking rod 5. Then, the control sleeve 7 is rotated in the opposite direction. The control sleeve 7 drives the shift block 20 and the shift wheel 29 to rotate in the opposite direction through the shift rail 25 and the shift groove 26. Then, the spring 28 resets and pushes the locking block 9 to gradually lock into the locking groove 8. The locking block 9 drives the release block 10 to slide and reset along the release groove 11. When the locking block 9 is fully locked into the locking groove 8, the control sleeve 7 cannot rotate. The shift rail 25 and the shift groove 26 just drive the shift block 20 to rotate between the two original limiting blocks 12. Then, the shift block 20 drives the shift wheel 29 to lock between the original limiting blocks 12. Then, the reset plate 14 is rotated in the forward direction again, so that the reset plate 14 drives the reset hole 16 and the reset groove 15 to rotate in the forward direction again.When the reset hole 16 rotates back to the position concentric with the support plate 18, the support spring 27 pushes the limiting sleeve 19 to slide and reset. Then, the limiting sleeve 19 drives the support plate 18 to slide and reset via the support rod 17. When the support spring 27 is fully reset, the support plate 18 at the top of the support rod 17 moves back to the original side of the reset plate 14. Then, the reset plate 14 continues to rotate, causing the reset hole 16 and the reset groove 15 to rotate to a position that does not correspond to the support rod 17 and the support plate 18. Then, the support rod 17, in conjunction with the top support plate 18, supports the limiting sleeve 19 to one side, preventing the limiting sleeve 19 from sliding. Then, the inner wall of the limiting sleeve 19 limits the outer side of the shift wheel 29, preventing the shift wheel 29 and the shift block 20 from sliding outward, thus limiting the rotation of the control sleeve 7 and preventing the control sleeve 7 from rotating, thereby ensuring the stability of the installation structure.
[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A centrifugal fan for adhesive processing, comprising a fan (1), characterized in that: A filter device is provided on one side of the fan (1). The filter device includes a mounting cover (2), a mounting plate (3), and a filter element (4). The mounting cover (2) is located on one side of the mounting plate (3), and the filter element (4) is located inside the mounting cover (2). A locking device is installed on one side of the mounting plate (3). The locking device includes a locking rod (5), a locking sleeve (6), a control sleeve (7), a locking groove (8), a locking block (9), a release block (10), and a release groove (11). The locking groove (8) is opened on the outside of the locking rod (5). The release block (10) is connected to one end of the locking block (9). The release groove (11) is opened in the control sleeve (7). The locking sleeve (6) is installed on the outside of the locking sleeve (6). The limiting mechanism includes a limiting block (12), a shifting spring (13), a reset plate (14), a reset groove (15), a reset hole (16), a support rod (17), a support plate (18), a limiting sleeve (19), and a shifting block (20). The limiting block (12) is installed on the outside of the locking sleeve (6). The shifting spring (13) is connected to two adjacent shifting blocks (20). The reset groove (15) is opened on the reset plate (14). The reset hole (16) is opened at one end of the reset groove (15). The support rod (17) is connected to one side of the limiting sleeve (19). The support plate (18) is set on the support rod (17). The shifting block (20) is set on one side of the control sleeve (7).
2. The centrifugal fan for adhesive processing according to claim 1, characterized in that: The mounting cover (2) has multiple air inlet slots (21) on its side wall. The mounting plate (3) has a connecting pipe (22) connected to one side, and the other end of the connecting pipe (22) is connected to the input end of the fan (1).
3. A centrifugal fan for adhesive processing according to claim 2, characterized in that: The filter element (4) is provided with gaskets (23) on both sides. The gaskets (23) can be detachably installed on the inside of the mounting cover (2) and on the side of the mounting plate (3).
4. A centrifugal fan for adhesive processing according to claim 3, characterized in that: A support sleeve (24) is fixedly provided on one side of the mounting plate (3), and one end of the support sleeve (24) abuts against the inner wall of the mounting cover (2).
5. A centrifugal fan for adhesive processing according to any one of claims 1-4, characterized in that: The control sleeve (7) is fixedly provided with multiple shift rails (25) on one side, and the shift block (20) is provided with a shift groove (26) on one side, and the shift groove (26) is adapted to the shift rails (25).
6. A centrifugal fan for adhesive processing according to claim 5, characterized in that: The limiting sleeve (19) is connected to a support spring (27) on one side, and the other end of the support spring (27) is in contact with the reset plate (14).
7. A centrifugal fan for adhesive processing according to claim 1, characterized in that: A spring (28) is movably provided inside the locking sleeve (6), and the other end of the spring (28) is connected to one side of the locking block (9).
8. A centrifugal fan for adhesive processing according to claim 6, characterized in that: The shifting block (20) has a shifting wheel (29) on one side that rotates, and the shifting wheel (29) is engaged between two corresponding limiting blocks (12).