Exhaust fan unit facilitating maintenance of motor and impeller

Abstract

The utility model discloses an exhaust fan unit convenient to maintain a motor and an impeller, which belongs to the technical field of exhaust fan equipment and is characterized by comprising a box body, an air inlet and an air outlet are respectively arranged on the front side and the rear side of the box body, a sliding groove is arranged at the bottom in the box body, and T-shaped sliding grooves are arranged on the left side and the right side of the sliding groove. A sliding plate used for being in sliding fit with the sliding grooves is arranged at the bottom in the box body, sliding blocks matched with the T-shaped sliding grooves are arranged on the left side and the right side of the sliding plate, a supporting frame is arranged on the sliding plate, a motor is arranged on the supporting frame, the output end of the motor is fixedly connected with an impeller, and a notch part is arranged on the right side end face of the box body and connected with a baffle through a hinge. A limiting block is arranged on the side, away from the baffle, of the sliding plate, a mounting block used for fixing the baffle is arranged on the end face of the right side of the box body, and the mounting block is rotationally connected with a fixing plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhaust fan equipment, and more specifically relates to an exhaust fan unit which is convenient for maintaining a motor and an impeller. Background Art

[0002] The exhaust fan unit is a device used to improve indoor air quality. It drives the impeller to rotate through the driving device, driving the air flow, thereby achieving the effect of ventilation. It is widely used in building ventilation systems, waste gas treatment in industrial production processes, and ventilation of agricultural greenhouses.

[0003] Due to structural reasons, when the motor and impeller inside the exhaust fan unit in the prior art are damaged or need to be cleaned, some blind spots are difficult or inconvenient to clean due to the structure of the exhaust fan unit, which greatly affects the maintenance efficiency and effect and increases the maintenance time. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an exhaust fan unit that is leak-proof and has the advantages of being easy to maintain and clean.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An exhaust fan unit for convenient maintenance of a motor and an impeller comprises a box body, an air inlet and an air outlet are respectively arranged on the front and rear sides of the box body, a slide groove is opened at the bottom of the box body, T-shaped slide grooves are arranged on the left and right sides of the slide groove, a sliding plate for slidingly cooperating with the slide groove is arranged at the bottom of the box body, and sliders cooperating with the T-shaped slide groove are arranged on the left and right sides of the sliding plate;

[0007] The sliding plate is provided with a support frame, the support frame is provided with a motor, the output end of the motor is fixedly connected to an impeller, the right end surface of the box body is provided with a notch, and the notch is connected to a baffle through a hinge;

[0008] The right end surface of the box body is provided with a mounting block for fixing the baffle, and the mounting block is rotatably connected with a fixing plate.

[0009] The advantages of this scheme are at least that: through the mutual cooperation of the slide groove, the sliding plate, the T-shaped slide groove, and the slider, the exhaust fan unit can be repaired more quickly and conveniently. When the impeller or motor in the exhaust fan unit fails, the fixed plate is first rotated, the baffle is opened, and then the sliding plate is pulled out. After reaching the specified position, the sliding plate will be constrained by the action of the limit block; because the motor and the impeller are both installed on the sliding plate, they can be inspected and repaired in all aspects. The design of the utility model can make it convenient to pull the parts inside the exhaust fan unit out of the box, which is not only convenient for regular inspection and maintenance of the motor and impeller to ensure its normal operation, but also convenient for regular cleaning of the parts in the box, which can prevent dust, grease and other substances from accumulating on the impeller and motor. If these substances are not cleaned in time, they will affect the performance and life of the fan. Through regular cleaning, overheating and blockage caused by impeller blockage can be reduced, and possible safety hazards such as loose or deformed bearings can be discovered and solved, thereby ensuring that the fan operates in a safe state and avoiding accidents caused by component failure. In short, the motor and impeller inside the exhaust fan unit are easy to maintain, which can not only improve the system efficiency, but also prevent the accumulation of dirt and dust, reduce noise and vibration, extend the life of the equipment, and ensure safe operation, greatly ensuring the stability and reliability of the fan.

[0010] The utility model is further configured as follows: a first magnet is arranged on the right end surface of the box body, and a second magnet for matching with the first magnet is arranged on the outward end surface of the baffle.

[0011] The advantage of this solution is at least that by providing the first magnet and the second magnet, after the baffle is opened, the second magnet on the baffle can cooperate with the first magnet on the box body to fix the baffle and prevent the baffle from obstructing the maintenance process.

[0012] The utility model is further configured as follows: a handle is provided on the sliding plate.

[0013] The advantage of this solution is at least that by providing a handle, the user can quickly and easily pull out the sliding plate during daily maintenance without performing additional operating steps, which improves the convenience of use to some extent.

[0014] The utility model is further configured as follows: a rectangular groove is arranged in the left side of the slide groove in the box body, a circular groove is arranged in the rectangular groove, a compression spring is arranged in the circular groove, and a buffer plate is arranged at the end of the compression spring.

[0015] The advantage of this solution is at least that: by setting the rectangular groove, the circular groove, the compression spring and the buffer plate in cooperation with each other, after the interior of the box is maintained, the sliding plate needs to be pushed back into the box. When the sliding plate contacts the buffer plate, the buffer plate buffers the sliding plate due to the principle of the spring, preventing the sliding plate from colliding with the interior of the box due to excessive force, causing damage to parts.

[0016] The utility model is further configured as follows: a rubber pad is arranged at the end of the buffer plate.

[0017] The advantage of this solution is at least that the buffer plate is further assisted by providing a rubber pad, and the collision noise generated when the buffer plate contacts the sliding plate can be reduced by providing a rubber pad on the end surface of the buffer plate.

[0018] The utility model is further configured as follows: the fixing plate is provided with a threaded hole, and the threaded hole is threadedly connected with a reinforcing bolt.

[0019] The advantage of this solution is at least that by setting the reinforcing bolts, when the fixed plate is clamped, the reinforcing bolts can be tightened to ensure that the contact surfaces of the baffle and the sliding plate are completely close to each other, preventing the sliding plate from loosening and causing vibration of the parts inside the box.

[0020] The utility model is further configured as follows: the reinforcing bolts are sleeved with gaskets.

[0021] The advantages of this solution are at least that: by setting a gasket, the pressure of the bolt can be evenly distributed on the pressure-bearing part, while protecting the bolt thread and the surface of the connecting body, enhancing the stability and durability of the structure, and protecting the connecting parts from damage under certain conditions.

[0022] The utility model is further configured as follows: an end surface of the sliding plate close to the baffle plate is provided with an anti-collision strip.

[0023] The advantage of this solution is at least that by setting up the anti-collision strip, when the baffle plate collides with the sliding plate during maintenance, the anti-collision strip can first cushion the colliding objects and prevent wear on the colliding surfaces, especially when dealing with minor collisions.

[0024] In summary, the utility model has at least the following advantages:

[0025] 1. By setting the first magnet and the second magnet, after the baffle is opened, the second magnet on the baffle can cooperate with the first magnet on the box body, so that the baffle can be fixed to prevent the baffle from hindering the maintenance process; by setting the handle, in daily maintenance, the user can quickly and easily pull out the sliding plate without performing additional operation steps, which improves the convenience of use to a certain extent; by setting the rectangular groove, the round groove, the compression spring and the buffer plate, the rectangular groove, the round groove, the compression spring and the buffer plate cooperate with each other, after the inside of the box body is maintained, the sliding plate needs to be pushed back into the box body, and when the sliding plate contacts the buffer plate, the buffer plate buffers the sliding plate due to the principle of the spring, preventing the sliding plate from being too hard and causing the sliding plate to collide with the inside of the box body, causing damage to parts;

[0026] 2. The buffer plate is further assisted by providing a rubber pad. The end surface of the buffer plate is provided with a rubber pad, which can reduce the collision noise generated when it contacts the sliding plate. The reinforcing bolts can be tightened after the fixed plate is connected to ensure that the contact surface between the baffle plate and the sliding plate is completely close to each other, preventing the sliding plate from loosening and causing vibration of the parts inside the box.

[0027] 3. By setting gaskets, the pressure of the bolts can be evenly distributed on the pressure-bearing parts, while protecting the bolt threads and the surface of the connector, enhancing the stability and durability of the structure, and protecting the connecting parts from damage under certain conditions; by setting anti-collision strips, when the baffle and the sliding plate collide during maintenance, the anti-collision strips can first buffer the colliding objects to prevent wear on the colliding surfaces, especially when dealing with minor collisions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an overall exploded schematic diagram of this embodiment;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0030] Figure 3 It is a partial structural schematic diagram of this embodiment;

[0031] Figure 4 Schematic diagram of the overall structure of this embodiment;

[0032] Figure 5 is a cross-sectional schematic diagram of this embodiment;

[0033] Figure 6 for Figure 5 Schematic diagram of the enlarged portion B.

[0034] Figure numerals: 1. Box body; 2. Inlet and outlet; 3. Air outlet; 4. Slide groove; 5. T-shaped slide groove; 6. Sliding plate; 7. Sliding block; 8. Support frame; 9. Motor; 10. Impeller; 11. Notch; 12. Baffle; 13. Limit block; 14. Mounting block; 15. Fixing plate; 16. First magnet; 17. Second magnet; 18. Handle; 19. Rectangular groove; 20. Circular groove; 21. Compression spring; 22. Buffer plate; 23. Rubber pad; 24. Reinforcement bolt; 25. Gasket; 26. Anti-collision strip. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] An exhaust fan unit with convenient maintenance of motor and impeller, such as Figure 1 As shown, it includes a box body 1, and the box body 1 is provided with an air inlet and an air outlet 3 on the front and rear sides respectively. A slide groove 4 is provided at the bottom of the box body 1, and T-shaped slide grooves 5 are provided on the left and right sides of the slide groove 4. A sliding plate 6 for slidingly cooperating with the slide groove 4 is provided at the bottom of the box body 1, and sliders 7 cooperating with the T-shaped slide groove 5 are provided on the left and right sides of the sliding plate 6.

[0037] A support frame 8 is provided on the sliding plate 6, and a motor 9 is provided on the support frame 8. An impeller 10 is fixedly connected to the output end of the motor 9. A notch 11 is provided on the right end surface of the box body 1. The notch 11 is connected to a baffle 12 through a hinge. A limit block 13 is provided on the side of the sliding plate 6 away from the baffle 12.

[0038] The right end face of the housing 1 is provided with a mounting block 14 for fixing the baffle 12, and the mounting block 14 is rotatably connected with a fixing plate 15. Through the cooperation of the slide groove 4, the sliding plate 6, the T-shaped slide groove 5, and the slider 7, the exhaust fan unit can be repaired more quickly and conveniently. When the impeller 10 or the motor 9 in the exhaust fan unit fails, the fixing plate 15 is first rotated, and then the baffle 12 is opened, and then the sliding plate 6 is pulled out. After reaching the specified position, the sliding plate 6 will be constrained by the action of the limit block 13; because the motor 9 and the impeller 10 are both installed on the sliding plate 6, they can be inspected and repaired in all aspects. The design of the utility model can make the parts inside the exhaust fan unit convenient to be pulled out of the housing 1, which is not only convenient for regular inspection and maintenance of the motor 9 and the impeller 10 to ensure their normal operation, but also convenient for regular cleaning of the parts in the housing 1, which can prevent dust, grease and other substances from accumulating on the impeller 10 and the motor 9. If these substances are not cleaned in time, they will affect the performance and life of the fan. Through regular cleaning, overheating and clogging problems caused by clogging of the impeller 10 can be reduced, and possible safety hazards such as loose or deformed bearings can be discovered and resolved, thereby ensuring that the fan operates in a safe state and avoiding accidents caused by component failure.

[0039] like Figure 3 As shown, a first magnet 16 is provided on the right end face of the box body 1, and a second magnet 17 for cooperating with the first magnet 16 is provided on the outward end face of the baffle 12. By providing the first magnet 16 and the second magnet 17, after the baffle 12 is opened, the second magnet 17 on the baffle 12 can cooperate with the first magnet 16 on the box body 1, so that the baffle 12 can be fixed to prevent the baffle 12 from obstructing the maintenance process.

[0040] like Figure 1 As shown, a handle 18 is provided on the sliding plate 6. By providing the handle 18, the user can quickly and easily pull the sliding plate 6 in daily maintenance without having to perform additional operation steps, which improves the convenience of use to some extent.

[0041] like Figure 6 As shown, the slide groove 4 is provided with a rectangular groove 19 on the left side of the box body 1, a circular groove 20 is provided in the rectangular groove 19, a compression spring 21 is provided in the circular groove 20, and a buffer plate 22 is provided at the end of the compression spring 21. The rectangular groove 19, the circular groove 20, the compression spring 21 and the buffer plate 22 cooperate with each other. After the inside of the box body 1 is well maintained, the sliding plate 6 needs to be pushed back into the box body 1. When the sliding plate 6 contacts the buffer plate 22, the buffer plate 22 buffers the sliding plate 6 due to the principle of the spring, so as to prevent the sliding plate 6 from colliding with the inside of the box body 1 due to excessive force, thereby causing damage to the parts.

[0042] like Figure 6 As shown, a rubber pad 23 is provided at the end of the buffer plate 22. By providing the rubber pad 23, the buffer plate 22 is further assisted. By providing the rubber pad 23 on the end surface of the buffer plate 22, the collision noise generated when it contacts the sliding plate 6 can be reduced.

[0043] like Figure 4 As shown, the fixing plate 15 is provided with a threaded hole, and the threaded hole is threadedly connected with a reinforcing bolt 24. By providing the reinforcing bolt 24, when the fixing plate 15 is clamped, the reinforcing bolt 24 can be tightened to ensure that the contact surface between the baffle plate 12 and the sliding plate 6 is completely close to each other, preventing the sliding plate 6 from loosening and causing the parts inside the box body 1 to vibrate.

[0044] like Figure 4 As shown, the reinforcing bolt 24 is sleeved with a gasket 25. By providing the gasket 25, the pressure of the bolt can be evenly distributed on the pressure-bearing member, while protecting the bolt thread and the surface of the connecting body, enhancing the stability and durability of the structure, and protecting the connecting parts from damage under certain conditions.

[0045] like Figure 1As shown, the end surface of the sliding plate 6 close to the baffle 12 is provided with an anti-collision strip 26. By providing the anti-collision strip 26, when the baffle 12 collides with the sliding plate 6 during maintenance, the anti-collision strip 26 can first buffer the mutual collision objects to prevent wear of the collision surface, especially when dealing with minor collisions.

[0046] The working process and beneficial effects of the utility model are as follows: through the mutual cooperation of the slide groove 4, the sliding plate 6, the T-shaped slide groove 5, and the slider 7, the exhaust fan unit can be repaired more quickly and conveniently. When the impeller 10 or the motor 9 in the exhaust fan unit fails, first rotate the fixed plate 15, then open the baffle 12, and then pull out the sliding plate 6. After reaching the specified position, the sliding plate 6 will be constrained by the action of the limit block 13. Because the motor 9 and the impeller 10 are both installed on the sliding plate 6, they can be inspected and repaired in all aspects. The design of the utility model can make it easy to pull out the parts inside the exhaust fan unit from the box 1, which is not only convenient for regular inspection and maintenance of the motor 9 and the impeller 10 to ensure their normal operation, but also convenient for regular cleaning of the parts in the box 1, which can prevent dust, grease and other substances from accumulating on the impeller 10 and the motor 9. If these substances are not cleaned in time, they will affect the performance and life of the fan. Through regular cleaning, overheating and clogging problems caused by clogging of the impeller 10 can be reduced, and possible safety hazards such as loose or deformed bearings can be discovered and resolved, thereby ensuring that the fan operates in a safe state and avoiding accidents caused by component failure. In short, the motor 9 and impeller 10 inside the exhaust fan unit are easy to maintain, which can not only improve system efficiency, but also prevent the accumulation of dirt and dust, reduce noise and vibration, extend the life of the equipment, and ensure safe operation. These measures are essential to ensure the stability and reliability of the fan.

Claims

1. An exhaust fan unit for convenient maintenance of a motor and an impeller, comprising a housing (1), wherein the housing (1) is provided with an air inlet and an air outlet (3) on the front and rear sides thereof, respectively, and characterized in that: The bottom of the box body (1) is provided with a slide groove (4), the left and right sides of the slide groove (4) are provided with T-shaped slide grooves (5), the bottom of the box body (1) is provided with a sliding plate (6) for slidingly cooperating with the slide groove (4), and the left and right sides of the sliding plate (6) are provided with sliding blocks (7) cooperating with the T-shaped slide groove (5); The sliding plate (6) is provided with a support frame (8), the support frame (8) is provided with a motor (9), the output end of the motor (9) is fixedly connected to an impeller (10), a notch (11) is provided on the right end surface of the box body (1), the notch (11) is connected to a baffle (12) via a hinge, and a limit block (13) is provided on the side of the sliding plate (6) away from the baffle (12); A mounting block (14) for fixing the baffle plate (12) is provided on the right end surface of the box body (1), and the mounting block (14) is rotatably connected to a fixing plate (15).

2. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 1, characterized in that: A first magnet (16) is provided on the right end surface of the box body (1), and a second magnet (17) for cooperating with the first magnet (16) is provided on the outward end surface of the baffle (12).

3. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 1, characterized in that: The sliding plate (6) is provided with a handle (18).

4. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 1, characterized in that: The slide groove (4) is provided with a rectangular groove (19) on the left side of the box body (1), a circular groove (20) is provided in the rectangular groove (19), a compression spring (21) is provided in the circular groove (20), and a buffer plate (22) is provided at the end of the compression spring (21).

5. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 4, characterized in that: A rubber pad (23) is provided at the end of the buffer plate (22).

6. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 1, characterized in that: The fixing plate (15) is provided with a threaded hole, and a reinforcing bolt (24) is threadedly connected to the threaded hole.

7. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 6, characterized in that: The reinforcing bolt (24) is sleeved with a gasket (25).

8. The exhaust fan unit with convenient maintenance of the motor and impeller according to claim 1, characterized in that: The end surface of the sliding plate (6) close to the baffle plate (12) is provided with an anti-collision strip (26).

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