Air door protection structure

Abstract

The utility model discloses an air door protection structure, and particularly relates to the technical field of air port protection devices, which comprises an air duct, a fan is fixedly connected in the air duct, and the front side of the fan is movably connected with a protection mechanism; wherein the protection mechanism comprises a concentration ring, a plurality of bayonets are formed in the bottom side in the concentration ring, a sliding groove plate is fixedly connected to the front side of the concentration ring, a protection net is fixedly connected to the interior of the sliding groove plate, a protection strip is fixedly connected to the rear side of the concentration ring, a rotating disc is movably connected to the interior of the concentration ring, a sliding groove is formed in the top of the rotating disc, and a push rod is fixedly connected to the bottom of the rotating disc. The protection mechanism is arranged, the baffles shield and protect the front side of the air duct and the front side of the fan through the guide blocks and the guide columns driven by the rotary disc, large foreign matter can be prevented from entering the fan through the protection net, damage to the fan is avoided, the air duct and the fan are effectively protected by the concentration ring for a long time, and the service life of the fan is prolonged. Meanwhile, the size of the air outlet can be quickly and stably adjusted, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air outlet protection devices, and more specifically, to an air door protection structure. Background Art

[0002] The fan damper is a device used to adjust and close the air volume in the ventilation path of the pipeline, fan inlet and outlet, and fan system. Its main function is to adjust the air volume and pressure of the fan and exhaust when it is shut down to ensure the normal operation of the fan system. The damper is also called the choke. It is a device installed at the fan inlet to control the amount of air entering the fan.

[0003] Some existing industrial induced draft fans in ventilation projects are unable to protect the dampers during use. The dampers that are exposed to the outside for a long time are very likely to collide directly with the goods being transported, causing damage to the dampers and affecting the normal use of the induced draft fans.

[0004] After searching, a Chinese patent with publication number CN218266461U discloses a damper protection structure for an industrial induced draft fan in a ventilation engineering project. The utility model can completely cover the outer wall of the damper when the induced draft fan is not in use through the coordinated use of a mounting plate, a threaded rod, a sliding rod, a movable plate, a protective cover and a rubber pad, thereby protecting the damper and preventing the damper from being directly hit by external objects, effectively improving the safety of the damper when in use, and at the same time reducing the contact between the damper and external water vapor, reducing the speed of oxidation and rusting of the damper, increasing the firmness and stability of the damper after connection, and effectively extending the service life of the damper.

[0005] However, when the damper protection structure is actually used, different types of protective devices are required to protect the dampers of fans of different models, and the applicable scope is small. At the same time, during the use of the fan, the protective device needs to be removed before use, which is time-consuming. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a damper protection structure to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A damper protection structure comprises an air duct, a fan is fixedly connected inside the air duct, and a protection mechanism is movably connected to the front side of the fan;

[0009] The protection mechanism includes a centralizing ring, a plurality of bayonet holes are provided on the bottom side of the centralizing ring, a slide plate is fixedly connected to the front side of the centralizing ring, a protective net is fixedly connected to the inside of the slide plate, a protective strip is fixedly connected to the rear side of the centralizing ring, a turntable is movably connected to the inside of the centralizing ring, a slide slot is provided on the top of the turntable, a push rod is fixedly connected to the bottom of the turntable, a slider is movably connected to the outside of the push rod, two guide rods are fixedly connected to the inside of the push rod, springs are movably connected to the outsides of the two guide rods, and a block is fixedly connected to the top of the slider.

[0010] By adopting the above technical scheme: the fan is fixedly connected inside the air duct, the concentrating ring is movably connected at the front side of the fan, multiple bayonet holes are arranged on the bottom side of the concentrating ring, the slide plate is fixedly connected at the front side of the concentrating ring, the protective net is fixedly connected inside the slide plate, the protective strip is fixedly connected at the rear side of the concentrating ring, the turntable is movably connected inside the concentrating ring, the slide is arranged at the top of the turntable, the push rod is fixedly connected at the bottom of the turntable, the slider is movably connected at the outside of the push rod, the two guide rods are fixedly connected inside the push rod, the two springs are movably connected at the outsides of the two guide rods, and the block is fixedly connected at the top of the slider.

[0011] As a further description of the above technical solution:

[0012] A plurality of guide blocks are movably connected to the top of the turntable, and baffles are fixedly connected to the tops of the plurality of guide blocks.

[0013] By adopting the above technical solution: a plurality of guide blocks are movably connected on the top of the turntable, and a plurality of baffles are fixedly connected on the top of the plurality of guide blocks.

[0014] As a further description of the above technical solution:

[0015] The tops of the plurality of baffles are all fixedly connected with guide pillars, and the plurality of baffles are distributed in a circular array on the top of the turntable.

[0016] By adopting the above technical solution: a plurality of guide columns are fixedly connected on the top of a plurality of baffles, and a plurality of baffles are distributed in a circular array on the top of the turntable.

[0017] As a further description of the above technical solution:

[0018] A plurality of fixing plates are fixedly connected to the rear sides of the plurality of concentrating rings, and threaded rods are movably connected to the outer sides of the plurality of fixing plates.

[0019] By adopting the above technical solution: a plurality of fixing plates are fixedly connected at the rear sides of a plurality of concentrating rings, and a plurality of threaded rods are movably connected at the outer sides of the plurality of fixing plates.

[0020] As a further description of the above technical solution:

[0021] The bottom ends of the plurality of threaded rods are movably connected with an arc-shaped clamping plate, and the inner walls of the plurality of arc-shaped clamping plates are fixedly connected with two anti-slip strips.

[0022] By adopting the above technical solution: a plurality of arc-shaped clamping plates are movably connected at the bottom ends of a plurality of threaded rods, and a plurality of anti-slip strips are fixedly connected to the inner walls of a plurality of arc-shaped clamping plates.

[0023] As a further description of the above technical solution:

[0024] The slide block is movably connected outside the two guide rods, and the two guide rods are symmetrically distributed inside the push rod.

[0025] By adopting the above technical solution: the sliding block is movably connected at the outside of the two guide rods, and the two guide rods are symmetrically distributed inside the push rod.

[0026] As a further description of the above technical solution:

[0027] The plurality of fixing plates are distributed in a circular array on the rear side of the concentrating ring, and the plurality of threaded rods are evenly distributed on the outer sides of the plurality of fixing plates.

[0028] By adopting the above technical solution: a plurality of fixing plates are distributed in a circular array on the rear side of the concentrating ring, and a plurality of threaded rods are evenly distributed on the outer sides of the plurality of fixing plates.

[0029] Technical effects and advantages of the utility model:

[0030] 1. By setting up a protection mechanism, compared with the prior art, multiple baffles are driven by the turntable through the guide block and the guide column to shield and protect the front side of the air duct and the fan, and the protective net can prevent large foreign objects from entering and damaging the fan, so that the central ring can effectively protect the air duct and the fan for a long time, and at the same time, the size of the air outlet can be adjusted quickly and stably to improve work efficiency;

[0031] 2. By setting a fixing plate, a threaded rod, an arc-shaped clamping plate and an anti-slip strip, compared with the prior art, a plurality of threaded rods drive a plurality of arc-shaped clamping plates through a fixing plate to fix air ducts of different diameters, thereby improving the practicality of the protective device and improving the stability of the fixing of the centralizing ring on the front side of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0033] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0034] Figure 3 It is a schematic diagram of the rear structure of the utility model.

[0035] Figure 4It is a schematic diagram of the cross-sectional structure of the concentrated ring of the utility model.

[0036] Figure 5 This is a schematic diagram of the baffle structure of the utility model.

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the push rod of the utility model.

[0038] The accompanying drawings are marked as follows: 1. air duct; 2. fan; 3. centering ring; 4. bayonet; 5. slide plate; 6. protective net; 7. protective strip; 8. turntable; 9. slide; 10. push rod; 11. slider; 12. guide rod; 13. spring; 14. block; 15. guide block; 16. baffle; 17. guide column; 18. fixing plate; 19. threaded rod; 20. arc-shaped splint; 21. anti-slip strip. DETAILED DESCRIPTION

[0039] 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.

[0040] The embodiment of the present application discloses a damper protection structure, specifically comprising an air duct 1, a fan 2 is fixedly connected inside the air duct 1, and a protection mechanism is movably connected to the front side of the fan 2;

[0041] The protection mechanism includes a concentration ring 3, a plurality of bayonet holes 4 are arranged on the bottom side of the concentration ring 3, a slide plate 5 is fixedly connected to the front side of the concentration ring 3, a protective net 6 is fixedly connected to the inside of the slide plate 5, a protective strip 7 is fixedly connected to the rear side of the concentration ring 3, a turntable 8 is movably connected to the inside of the concentration ring 3, a slide groove 9 is arranged on the top of the turntable 8, a push rod 10 is fixedly connected to the bottom of the turntable 8, a slider 11 is movably connected to the outside of the push rod 10, two guide rods 12 are fixedly connected to the inside of the push rod 10, the slider 11 is movably connected to the outside of the two guide rods 12, the two guide rods 12 are symmetrically distributed inside the push rod 10, the outsides of the two guide rods 12 are movably connected to springs 13, a card block 14 is fixedly connected to the top of the slider 11, and a plurality of baffles 16 effectively block the front side of the air duct 1 when the turntable 8 rotates, and can also be quickly opened to facilitate the operation of the fan 2. The card block 14 pushed by the two springs 13 can be quickly fixed when rotated to different angles, so that a plurality of baffles 16 can be opened to different sizes, thereby improving the applicability of the protection device.

[0042] Reference Figure 5As shown, specifically, a plurality of guide blocks 15 are movably connected to the top of the turntable 8, a baffle 16 is fixedly connected to the top of the plurality of guide blocks 15, a guide column 17 is fixedly connected to the top of the plurality of baffles 16, the plurality of baffles 16 are distributed in a circular array on the top of the turntable 8, and the plurality of baffles 16 rotate inside the concentrating ring 3, so that the plurality of baffles 16 can block the front side of the air duct 1.

[0043] Reference Figure 4 As shown, specifically, multiple fixing plates 18 are fixedly connected to the rear side of multiple concentrating rings 3, and the multiple fixing plates 18 are distributed in a circular array on the rear side of the concentrating ring 3. Threaded rods 19 are movably connected to the outer sides of the multiple fixing plates 18, and the multiple threaded rods 19 are evenly distributed on the outer sides of the multiple fixing plates 18. The bottom ends of the multiple threaded rods 19 are movably connected to arc-shaped clamping plates 20, and the inner walls of the multiple arc-shaped clamping plates 20 are fixedly connected to two anti-slip strips 21, so that the air ducts 1 with different diameters can be stably fixed.

[0044] Working principle of the utility model: when protecting the damper of the fan, firstly rotate the threaded rods 19 on the multiple fixing plates 18 outward, move the multiple arc-shaped clamping plates 20 outward, and then align the rear side of the centralizing ring 3 with the air outlet of the damper, so that the protection strip 7 is closely fitted with the damper, and then the multiple threaded rods 19 are rotated to squeeze the multiple arc-shaped clamping plates 20 toward the outside of the air duct 1. When the multiple arc-shaped clamping plates 20 are fitted with the outside of the air duct 1, the connection between the centralizing ring 3 and the air duct 1 is kept stable through the multiple anti-slip strips 21. Then, when the fan is used, the movable connection is firstly moved downward along the two guide rods 12 to compress the two springs 13, so that the block 14 at the top of the slider 11 is in contact with the centralizing ring 3. The bayonet 4 at the bottom of the ring 3 is separated, and then the push rod 10 is pushed clockwise, and the push rod 10 drives the turntable 8 to rotate clockwise inside the central ring 3. During the rotation, the turntable 8 drives multiple guide blocks 15 and the baffle 16 on the top to rotate through the slide groove 9, and then the guide columns 17 on the top of the multiple baffles 16 slide in the guide groove inside the slide groove plate 5, so that the multiple baffles 16 rotate and offset, so that the multiple baffles 16 open the middle area of ​​the central ring 3, so that the air duct 1 and the fan 2 can work. After use, push the slider 11 downward, and then rotate the turntable 8 counterclockwise to make the multiple baffles 16 close the middle area of ​​the central ring 3 again, so as to effectively protect the air duct 1 and the fan 2.

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A damper protection structure, comprising an air duct (1), characterized in that: A fan (2) is fixedly connected to the interior of the air duct (1), and a protective mechanism is movably connected to the front side of the fan (2); The protection mechanism comprises a centralizing ring (3), a plurality of bayonet holes (4) are provided on the bottom side of the centralizing ring (3), a slide plate (5) is fixedly connected to the front side of the centralizing ring (3), a protective net (6) is fixedly connected to the inside of the slide plate (5), a protective strip (7) is fixedly connected to the rear side of the centralizing ring (3), a turntable (8) is movably connected to the inside of the centralizing ring (3), a slide groove (9) is provided on the top of the turntable (8), a push rod (10) is fixedly connected to the bottom of the turntable (8), a slider (11) is movably connected to the outside of the push rod (10), two guide rods (12) are fixedly connected to the inside of the push rod (10), springs (13) are movably connected to the outsides of the two guide rods (12), and a block (14) is fixedly connected to the top of the slider (11).

2. The damper protection structure according to claim 1, characterized in that: The top of the turntable (8) is movably connected to a plurality of guide blocks (15), and the tops of the plurality of guide blocks (15) are all fixedly connected to a baffle (16).

3. The damper protection structure according to claim 2, characterized in that: The tops of the plurality of baffles (16) are all fixedly connected with guide columns (17), and the plurality of baffles (16) are distributed in a circular array on the top of the turntable (8).

4. The damper protection structure according to claim 1, characterized in that: A plurality of fixing plates (18) are fixedly connected to the rear sides of the plurality of centralizing rings (3), and threaded rods (19) are movably connected to the outer sides of the plurality of fixing plates (18).

5. The damper protection structure according to claim 4, characterized in that: The bottom ends of the plurality of threaded rods (19) are all movably connected to an arc-shaped clamping plate (20), and the inner walls of the plurality of arc-shaped clamping plates (20) are all fixedly connected to two anti-slip strips (21).

6. The damper protection structure according to claim 1, characterized in that: The slide block (11) is movably connected to the outside of two guide rods (12), and the two guide rods (12) are symmetrically distributed inside the push rod (10).

7. The damper protection structure according to claim 4, characterized in that: The plurality of fixing plates (18) are distributed in a circular array on the rear side of the centralizing ring (3), and the plurality of threaded rods (19) are evenly distributed outside the plurality of fixing plates (18).

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