Low-noise explosion-proof centrifugal fan
By designing the connection between nylon rods and buffer boards and shock absorption springs in the centrifugal fan, the shock absorption treatment of the starter is realized, and the combination of elastic airbags and electric retractable rods is used for cooling treatment, which solves the noise and overheating of the centrifugal fan and overheating. The problem improves the comfort and safety of the equipment.
Patent Information
- Application Number
- CN202421199053.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Existing centrifugal fans are prone to vibration noise during use, especially when the air volume and motor power are large, which affects user comfort and may cause the starter to overheat and explosion.
Design a low -noise explosion -proof centrifugal fan, to fix the connection nylon rod at the bottom of the starter, and connect with the buffer board and shock -absorbing spring to achieve the shock absorption treatment of the starter; Cooperate, intermittently spraying gas to heat dissipation to prevent overheating and explosion.
Effectively reduce the generation of noise, reduce the vibration by shock absorption, prevent the boot of overheating and explosion, and improve the comfort and safety of the equipment.
Smart Images
Figure CN222415309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a low-noise explosion-proof centrifugal fan, belonging to the technical field of centrifugal fans. Background Art
[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air intake of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and selection of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc.
[0003] There are still some problems with the existing centrifugal fans during use. When the fan air volume is large and the motor power is large, vibration noise is easily generated / radiated between the centrifugal fan and the pipeline, and the volute of the centrifugal fan itself, causing discomfort to the user. Utility Model Content
[0004] The purpose of the utility model is to provide a low-noise explosion-proof centrifugal fan. The utility model has a simple structure and is easy to use. It can perform shock absorption and buffering on the centrifugal fan, thereby reducing the generation of noise, and can perform heat dissipation treatment on the centrifugal fan, thereby achieving explosion-proof conditions, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A low-noise explosion-proof centrifugal fan comprises a starter, wherein a fan cover is fixedly connected to the outside of the starter, an air outlet pipe is fixedly connected to the top of the fan cover, a dust cover is clamped on the outside of the fan cover, a fixing plate is fixedly connected to the bottom of the starter, a nylon rod is fixedly connected to the bottom of the fixing plate, a buffer plate is movably connected to the bottom of the nylon rod, a shock-absorbing spring is fixedly connected to the bottom of the fixing plate, and a gravity plate is fixedly connected to the bottom of the buffer plate.
[0007] Furthermore, a movable plate is fixedly connected to the bottom of the nylon rod, a lifting groove is opened in the inner wall of the buffer plate, a sliding plate is fixedly connected to the outer side of the movable plate, an elastic airbag is fixedly connected to the top of the gravity plate, a conduit is fixedly connected to the top of the elastic airbag, an air outlet plate is fixedly connected to the top of the conduit, an air outlet plate is fixedly connected to the top of the gravity plate, a stabilizing plate is fixedly connected to the outer side of the stabilizing plate, an electric telescopic rod is fixedly connected to the outer side of the electric telescopic rod, a pushing rod is fixedly connected to the outer side of the pushing rod, and an extrusion rod is fixedly connected to the outer side of the pushing rod.
[0008] Furthermore, the fixing plate is symmetrically distributed at the bottom of the starter, and the nylon rod is symmetrically distributed between the fixing plate and the buffer plate.
[0009] Furthermore, the shock absorbing spring is located outside the nylon rod, and the top of the shock absorbing spring is fixedly connected to the bottom of the fixing plate.
[0010] Furthermore, the movable plate is located inside the buffer plate, and the gravity plate is located directly below the starter.
[0011] Furthermore, the extrusion rods are slidably connected to the inside of the lifting slot, and the extrusion rods are symmetrically distributed on the top of the elastic airbag.
[0012] Furthermore, the stabilizing plates are symmetrically distributed on the top of the gravity plate, and the sliding plates are symmetrically distributed on the outside of the elastic airbag.
[0013] The beneficial effects of the utility model are:
[0014] (I) The utility model is provided with a starter and a fan cover, and a fixing plate is fixedly connected to the bottom of the starter. When the power of the fan is relatively large, the starter will vibrate violently, thereby generating noise. At this time, a nylon rod is fixedly connected through the bottom of the fixing plate, and the nylon rod is slidably connected to the buffer plate on the top of the gravity plate, so that the shock-absorbing spring has a shock-absorbing effect on the starter. The nylon rod continuously moves up and down inside the buffer plate through the shock-absorbing spring, thereby eliminating the generated potential energy. At this time, the starter and the inside of the fan cover can be shock-absorbing, thereby reducing the generation of noise.
[0015] (ii) The utility model is provided with a starter. When the nylon rod moves downward inside the buffer plate, it can drive the moving plate to move downward inside the buffer plate. The movement of the moving plate drives the extrusion plate to move up and down inside the lifting slot. The downward movement of the extrusion plate can squeeze the elastic air bag on the top of the gravity plate. A stabilizing plate is fixedly connected to the top of the gravity plate. By starting the electric telescopic rod, the electric telescopic rod drives the push rod to move, and then the push rod drives the sliding plate to move to the outside of the elastic air bag. The extrusion plate intermittently squeezes the elastic air bag, so that the gas inside the elastic air bag is intermittently ejected from the air outlet plate. Since the air outlet plate is located below the starter, the starter can be cooled to prevent the starter from overheating and exploding. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.
[0017] Figure 1This is a structural schematic diagram of a low-noise explosion-proof centrifugal fan of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure between a fixed plate and a gravity plate of a low-noise explosion-proof centrifugal fan of the utility model;
[0019] Figure 3 This is a schematic diagram of the structure inside a buffer plate of a low-noise explosion-proof centrifugal fan of the utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the outer side of an elastic airbag of a low-noise explosion-proof centrifugal fan of the utility model;
[0021] Numbers in the figure: 1. Starter; 2. Fan cover; 3. Air outlet duct; 4. Dust cover; 5. Fixed plate; 6. Nylon rod; 7. Buffer plate; 8. Shock-absorbing spring; 9. Gravity plate; 10. Moving plate; 11. Lifting slot; 12. Extrusion plate; 13. Elastic airbag; 14. Conduit; 15. Air outlet plate; 16. Stabilizing plate; 17. Electric telescopic rod; 18. Push rod; 19. Sliding plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:
[0024] A low-noise explosion-proof centrifugal fan comprises a starter 1, a fan cover 2 is fixedly connected to the outside of the starter 1, an air outlet duct 3 is fixedly connected to the top of the fan cover 2, a dust cover 4 is clamped on the outside of the fan cover 2, a fixing plate 5 is fixedly connected to the bottom of the starter 1, a nylon rod 6 is fixedly connected to the bottom of the fixing plate 5, a buffer plate 7 is movably connected to the bottom of the nylon rod 6, a shock-absorbing spring 8 is fixedly connected to the bottom of the fixing plate 5, and a gravity plate 9 is fixedly connected to the bottom of the buffer plate 7.
[0025] Specifically, Figure 1 As shown, the fixed plate 5 is symmetrically distributed at the bottom of the starter 1, the nylon rod 6 is symmetrically distributed between the fixed plate 5 and the buffer plate 7, the shock-absorbing spring 8 is located on the outside of the nylon rod 6, and the top of the shock-absorbing spring 8 is fixedly connected to the bottom of the fixed plate 5, the movable plate 10 is located inside the buffer plate 7, and the gravity plate 9 is located directly below the starter 1.
[0026] In this embodiment: by setting up a starter 1 and a fan cover 2, a fixed plate 5 is fixedly connected to the bottom of the starter 1. When the power of the fan is relatively large, the starter 1 will vibrate violently, thereby generating noise. At this time, a nylon rod 6 is fixedly connected through the bottom of the fixed plate 5, and the nylon rod 6 is slidably connected to the buffer plate 7 on the top of the gravity plate 9, so that the shock-absorbing spring 8 has a shock-absorbing effect on the starter 1. The nylon rod 6 continuously moves up and down inside the buffer plate 7 through the shock-absorbing spring 8, thereby eliminating the generated potential energy. At this time, the starter 1 and the inside of the fan cover 2 can be shock-absorbing, thereby reducing the generation of noise.
[0027] Example 2 Please refer to Figure 1 , Figure 2 and Figure 4 The difference between this embodiment and embodiment 1 is that: a movable plate 10 is fixedly connected to the bottom of the nylon rod 6, a lifting groove 11 is opened in the inner wall of the buffer plate 7, an extrusion plate 12 is fixedly connected to the outer side of the movable plate 10, an elastic airbag 13 is fixedly connected to the top of the gravity plate 9, a conduit 14 is fixedly connected to the top of the elastic airbag 13, an air outlet plate 15 is fixedly connected to the top of the conduit 14, a stabilizing plate 16 is fixedly connected to the top of the gravity plate 9, an electric telescopic rod 17 is fixedly connected to the outer side of the stabilizing plate 16, a push rod 18 is fixedly connected to the outer side of the electric telescopic rod 17, and a sliding plate 19 is fixedly connected to the outer side of the push rod 18.
[0028] Specifically, Figure 1-4 As shown, the extrusion plate 12 is slidably connected inside the lifting groove 11, and the extrusion plate 12 is symmetrically distributed on the top of the elastic airbag 13, the stabilizing plate 16 is symmetrically distributed on the top of the gravity plate 9, and the sliding plate 19 is symmetrically distributed on the outside of the elastic airbag 13.
[0029] In this embodiment: by setting up a starter 1, when the nylon rod 6 moves downward inside the buffer plate 7, it can drive the moving plate 10 to move downward inside the buffer plate 7, and the movement of the moving plate 10 drives the squeezing plate 12 to move up and down inside the lifting groove 11, and the downward movement of the squeezing plate 12 can squeeze the elastic air bag 13 on the top of the gravity plate 9, and a stabilizing plate 16 is fixedly connected to the top of the gravity plate 9, and by starting the electric telescopic rod 17, the electric telescopic rod 17 drives the push rod 18 to move, and then the push rod 18 drives the sliding plate 19 to move to the outside of the elastic air bag 13, and then the squeezing plate 12 intermittently squeezes the elastic air bag 13, so that the gas inside the elastic air bag 13 is intermittently ejected from the air outlet plate 15. Since the air outlet plate 15 is located below the starter 1, the starter 1 can be cooled to prevent the starter 1 from overheating and exploding.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-noise explosion-proof centrifugal fan, comprising a starter (1), characterized in that: The outside of the starter (1) is fixedly connected to a fan cover (2), the top of the fan cover (2) is fixedly connected to an air outlet pipe (3), the outside of the fan cover (2) is clamped with a dust cover (4), the bottom of the starter (1) is fixedly connected to a fixing plate (5), the bottom of the fixing plate (5) is fixedly connected to a nylon rod (6), the bottom of the nylon rod (6) is movably connected to a buffer plate (7), the bottom of the fixing plate (5) is fixedly connected to a shock absorbing spring (8), and the bottom of the buffer plate (7) is fixedly connected to a gravity plate (9).
2. A low-noise explosion-proof centrifugal fan according to claim 1, characterized in that: The bottom of the nylon rod (6) is fixedly connected to a movable plate (10), the inner wall of the buffer plate (7) is provided with a lifting groove (11), the outer side of the movable plate (10) is fixedly connected to an extrusion plate (12), the top of the gravity plate (9) is fixedly connected to an elastic airbag (13), the top of the elastic airbag (13) is fixedly connected to a conduit (14), the top of the conduit (14) is fixedly connected to an air outlet plate (15), the top of the gravity plate (9) is fixedly connected to a stabilizing plate (16), the outer side of the stabilizing plate (16) is fixedly connected to an electric telescopic rod (17), the outer side of the electric telescopic rod (17) is fixedly connected to a push rod (18), and the outer side of the push rod (18) is fixedly connected to a sliding plate (19).
3. A low-noise explosion-proof centrifugal fan according to claim 1, characterized in that: The fixing plate (5) is symmetrically distributed at the bottom of the starter (1), and the nylon rod (6) is symmetrically distributed between the fixing plate (5) and the buffer plate (7).
4. The low-noise explosion-proof centrifugal fan according to claim 1, characterized in that: The shock absorbing spring (8) is located outside the nylon rod (6), and the top of the shock absorbing spring (8) is fixedly connected to the bottom of the fixing plate (5).
5. The low-noise explosion-proof centrifugal fan according to claim 2, characterized in that: The movable plate (10) is located inside the buffer plate (7), and the gravity plate (9) is located directly below the starter (1).
6. A low-noise explosion-proof centrifugal fan according to claim 2, characterized in that: The extrusion plates (12) are slidably connected inside the lifting groove (11), and the extrusion plates (12) are symmetrically distributed on the top of the elastic airbag (13).
7. The low-noise explosion-proof centrifugal fan according to claim 2, characterized in that: The stabilizing plates (16) are symmetrically distributed on the top of the gravity plate (9), and the sliding plates (19) are symmetrically distributed on the outside of the elastic airbag (13).