Protective structure and axial flow fan

Abstract

The utility model discloses a protection structure and an axial flow fan, which comprises a first clamping ring and a second clamping ring which are used for being installed on the axial flow fan, and the first clamping ring and the second clamping ring are assembled with the axial flow fan through fixing screws. Protruding blocks used for fixing the first clamping ring and the second clamping ring are distributed on the outer wall of the first clamping ring and the outer wall of the second clamping ring in a surrounding mode, a protection plate is arranged on the inner wall of the first clamping ring, and a protection net is arranged on the inner wall of the second clamping ring. The device is simple in structure and convenient to use, through cooperation of the main body and the first clamping ring, the impeller, the motor and other components can be well protected when the device is idle, the impeller is prevented from being damaged by external impact, external dust and water stains are also prevented from entering the main body easily to corrode the motor, and the service life of the device is prolonged. And the service life and performance of the motor and the impeller are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of axial flow fan, specifically relates to a protection structure and axial flow fan. BACKGROUND

[0002] Axial flow fan is a fan whose airflow direction is the same as the fan shaft, and its characteristic is that the gas flows parallel to the fan shaft. Axial flow fans are usually used in places where the flow requirement is high and the pressure requirement is low. They are fixed in position and move air. The working principle of axial flow fan is that when the impeller rotates, the gas enters the impeller axially from the air inlet, is pushed by the blade and has its energy increased, and then flows into the guide vane. The guide vane changes the direction of the airflow to axial flow, and at the same time, the gas is introduced into the diffuser pipe to further convert kinetic energy into pressure energy. Finally, it is introduced into the working pipeline. Axial flow fans are widely used in metallurgy, chemical industry, light industry, food, pharmaceutical equipment, mechanical equipment and civil buildings for ventilation and heat dissipation. If the casing is removed, it can also be used as a free fan, and it can also be installed in a long exhaust duct in series at intervals to improve the air pressure in the duct.

[0003] After retrieval, the patent application number CN202110464686.X discloses an axial flow fan, which comprises a wind cylinder, a slot is formed in the left side wall of the wind cylinder, a left half casing is hingedly connected to the wind cylinder at the slot, a lock catch assembly is arranged between the upper end of the left half casing and the upper end of the slot, a horizontal slide rail is fixedly arranged in the wind cylinder and opposite to the slot, a slide plate is slidably connected to the horizontal slide rail, a motor is fixedly arranged on the slide plate, an impeller assembly is arranged on the output shaft of the motor, a T-shaped slide block is hingedly connected to the left end of the slide plate, an arc-shaped slide groove is arranged on the inner side wall of the left half casing in a circumferential direction, the cross section of the arc-shaped slide groove is T-shaped, and the T-shaped slide block is slidably connected in the arc-shaped slide groove. When the left half casing is closed, the output shaft of the motor is located at the center position of the wind cylinder. When the left half casing is opened, the motor is pulled out of the slot by the slide plate. The axial flow fan not only has a simple structure, but also is convenient to maintain and repair.

[0004] The above technical solution and the traditional axial flow fan still have defects, that is, there is no corresponding protection when the equipment is idle, the blades of the axial flow fan are easily damaged by external objects, and the key components such as the motor lack effective protection and are easily eroded by dust, moisture and other factors, which affects the service life and performance. SUMMARY

[0005] The utility model discloses a purpose lies in providing a protection structure and axial flow fan, and the device simple structure, convenient to use, through the cooperation of main part and first collar, can provide good protection for impeller and motor and other components when the equipment is idle, avoid the impact of outside to cause harm to impeller, also avoid the dust and water mark of outside to easily enter the inside of main part to cause the corrosion of motor, guarantee the service life and performance of motor and impeller, to solve the problem of prior art in the above background art.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A protection structure, comprising:

[0008] First collar and second collar for being installed on axial flow fan, first collar and second collar are assembled through fixed screw and axial flow fan, the outer wall of first collar and second collar is surrounded and is distributed with the protruding block for fixing first collar and second collar, the inner wall of the ring of first collar is provided with the protection board, and the inner wall of the ring of second collar is provided with the protection net.

[0009] Preferably, the protruding block on the first collar and the second collar is of the same specification, and the number and position of the protruding block are the same.

[0010] Preferably, the protruding block is provided with a through hole, and the fixed screw passes through the through hole.

[0011] An axial flow fan, comprising a protection structure, further comprising a main body, the main body is arranged in a ring shape, a support is welded in the inside of the main body, a motor is installed on the support, and an impeller is installed on the output end of the motor.

[0012] Screw holes for installing first collar and second collar are formed in the two side ring openings of the main body, and two groups of support seats are symmetrically arranged on the bottom outer wall of the main body.

[0013] Preferably, the support seat is arranged in an arc shape.

[0014] Preferably, a upper support plate is arranged on the support leg of the support seat, a lower support plate is arranged below the upper support plate, and a spring shock absorber is installed between the lower support plate and the upper support plate.

[0015] The utility model discloses a protection structure and axial flow fan, compared with prior art, have the following advantages:

[0016] The utility model discloses a first clamping ring and second clamping ring are arranged on the air inlet and air outlet of the main body, the outer wall of first clamping ring and second clamping ring is provided with the protruding piece with through -hole, the first clamping ring is provided with the protection board, and the second clamping ring is provided with the protection net, and the device is simple structure, convenient to use, through the cooperation of main body and first clamping ring, can provide good protection for impeller and motor and other components when the equipment is idle, avoid the impact of outside to cause harm to impeller, also avoid the dust and water mark of outside to easily enter the inside of main body and cause the corrosion of motor, guarantee the service life and performance of motor and impeller. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] Figure 2 It is the structural schematic diagram of the first clamping ring of the utility model;

[0019] Figure 3 It is the structural schematic diagram of the second clamping ring of the utility model;

[0020] Figure 4 It is the structural schematic diagram of the support seat of the utility model.

[0021] In the drawing: 1, main body;2, support seat;3, first clamping ring;4, protection board;5, protruding piece;6, through -hole;7, screw hole;8, support;9, motor;10, impeller;11, second clamping ring;12, protection net;13, upper support plate;14, lower support plate;15, spring shock absorber. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0023] The utility model provides a kind of protection structure as Figures 1-4 As shown in the figure, including:

[0024] A first retaining ring 3 and a second retaining ring 11 are used for mounting on an axial fan. The first retaining ring 3 and the second retaining ring 11 are assembled with the axial fan using fixing screws. Both the first retaining ring 3 and the second retaining ring 11 have protrusions 5 distributed around their outer walls for securing them. A protective plate 4 is provided on the inner wall of the first retaining ring 3, and a protective mesh 12 is provided on the inner wall of the second retaining ring 11. The protrusions 5 on the first retaining ring 3 and the second retaining ring 11 are of the same specification, and the number and position of the protrusions 5 are identical. Through holes 6 are provided on the protrusions 5 for the fixing screws to pass through.

[0025] This utility model provides, for example Figures 1-4 An axial flow fan includes a protective structure and a main body 1. The main body 1 is arranged in a ring shape. A bracket 8 is welded inside the main body 1. A motor 9 is installed on the bracket 8. An impeller 10 is installed at the output end of the motor 9. Screw holes 7 for installing a first retaining ring 3 and a second retaining ring 11 are opened on both sides of the ring opening of the main body 1. Two sets of support seats 2 are symmetrically arranged on the bottom outer wall of the main body 1.

[0026] Screw holes 7 are provided at the air inlet and air outlet of the main body 1 for installing the first retaining ring 3 and the second retaining ring 11. The outer walls of the first retaining ring 3 and the second retaining ring 11 are provided with protrusions 5 with through holes 6. A protective plate 4 is provided inside the first retaining ring 3 and a protective net 12 is provided inside the second retaining ring 11. In actual use, when the equipment is idle, the two sets of first retaining rings 3 are placed at the air inlet and air outlet of the main body 1 respectively, and the protrusions 5 and screw holes 7 on the first retaining ring 3 correspond one-to-one and are fixed by fixing screws. Due to the setting of the first retaining ring 3 and the protective plate 4, the motor 9 and impeller 10 inside the main body 1 can be effectively protected.

[0027] In summary, this device has a simple structure and is easy to use. Through the cooperation of the main body 1 and the first retaining ring 3, it can provide good protection for components such as the impeller 10 and the motor 9 when the equipment is idle, avoiding damage to the impeller 10 from external impacts, and preventing external dust and water stains from easily entering the interior of the main body 1 and corroding the motor 9, thus ensuring the service life and performance of the motor 9 and the impeller 10.

[0028] In addition, when the equipment is needed, the first retaining ring 3 is removed from the air inlet and air outlet of the main body 1. At the same time, the second retaining ring 11 is placed in the air inlet of the main body 1, and the protrusion 5 on the second retaining ring 11 corresponds one-to-one with the screw hole 7, and is fixed by fixing screws. Due to the setting of the second retaining ring 11 and the protective net 12, it can effectively prevent external debris from being sucked into the main body 1 and causing damage to the motor 9 or impeller 10, further improving the practicality of the device.

[0029] Meanwhile, since the first clamping ring 3 and the second clamping ring 11 are detachable from the main body 1, and the first clamping ring 3 and the second clamping ring 11 have the same specification, the first clamping ring 3 and the second clamping ring 11 can be replaced easily, and the first clamping ring 3, the second clamping ring 11 and the main body 1 can be disassembled, stored and transported easily.

[0030] Further, please refer to Figure 4 :

[0031] The support base 2 is in an arched shape. The support base 2 is provided with an upper support plate 13 on the support leg, and the lower support plate 14 is arranged below the upper support plate 13, and the spring shock absorber 15 is installed between the lower support plate 14 and the upper support plate 13.

[0032] By arranging the support base 2 in an arched shape at the bottom of the main body 1, the device can provide good support and stability.

[0033] The upper support plate 13 and the lower support plate 14 are arranged at the bottom of the support base 2, and the spring shock absorber 15 is installed between the upper support plate 13 and the lower support plate 14, which can provide good shock absorption during use of the device, not only reducing the damage to the device caused by vibration during operation, but also reducing the noise generated by the device due to vibration, and further improving the practicability of the device.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A protective structure, characterized in that, The utility model relates to a kind of protective structure of axial fan, including: First collar (3) and second collar (11) for being installed on axial fan, first collar (3) and second collar (11) are assembled by fixing screw and axial fan, the outer wall of the first collar (3) and second collar (11) is distributed with the protrusion (5) for fixing first collar (3) and second collar (11) around, the inner wall of the collar of the first collar (3) is provided with protective plate (4), the inner wall of the collar of the second collar (11) is provided with protective net (12).

2. The containment structure of claim 1, wherein: The protrusion (5) on the first collar (3) and second collar (11) is same in specification, and the number and position of protrusion (5) distribution are same.

3. The containment structure of claim 1, wherein: Through hole (6) is set on the protrusion (5), and through hole (6) is passed for fixing screw.

4. An axial fan comprising the protective structure of any one of claims 1-3, characterized in that: Further comprising a main body (1), the main body (1) is arranged in a ring shape, a support (8) is welded inside the main body (1), a motor (9) is installed on the support (8), and an impeller (10) is installed at the output end of the motor (9); Screw holes (7) for installing the first collar (3) and the second collar (11) are formed on both sides of the main body (1), and two groups of support seats (2) are symmetrically arranged on the bottom outer wall of the main body (1).

5. An axial fan as claimed in claim 4, characterised in that: The support seat (2) is arranged in an arc shape.

6. An axial fan as claimed in claim 5, characterised in that: An upper support plate (13) is arranged on the supporting leg of the support seat (2), a lower support plate (14) is arranged below the upper support plate (13), and a spring shock absorber (15) is installed between the lower support plate (14) and the upper support plate (13).

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