Wind scooper for large-diameter fan

Abstract

The wind scooper for the large-diameter fan comprises a front scooper body, the front scooper body comprises a first wind guiding assembly and a second wind guiding assembly which are sequentially arranged from inside to outside and can guide airflow to pass through, the first wind guiding assembly comprises a plurality of first wind guiding strips, and the first wind guiding strips are distributed in a spiral arm shape in the circumferential direction. The second air guide assembly comprises a plurality of second air guide strips, the second air guide strips are distributed in a spiral arm shape in the circumferential direction, the second air guide strips are obliquely arranged in the airflow passing direction from inside to outside, and the first air guide assembly and the second air guide assembly are matched so that the airflow can have a certain rotating effect after passing through the front cover body; therefore, the diffusion speed of the airflow in the circumferential direction is slowed down, and the airflow can be blown by a relatively farther distance in the air outlet direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fan equipment, specifically relates to a wind scooper for large diameter fan. BACKGROUND

[0002] The fan cover of large diameter fan is generally formed by longitudinal and horizontal cross interlaced framework strips, the framework strips cannot guide airflow, leading to the wind power being easily dispersed when airflow passes through the fan cover, and the airflow generated by the fan cannot be concentrated and blown to a relatively far position.

[0003] Therefore, further improvement is needed. INVENTION CONTENTS

[0004] The utility model discloses a wind scooper for large diameter fan, which can concentrate airflow and prevent it from being dispersed after passing through the cover body, and can blow airflow to a relatively far position.

[0005] The utility model discloses a wind scooper for large diameter fan, which can concentrate airflow and prevent it from being dispersed after passing through the cover body, and can blow airflow to a relatively far position.

[0006] A wind scooper for large diameter fan, comprising a front cover body, the front cover body comprises a first wind guide assembly and a second wind guide assembly which are sequentially arranged from inside to outside and can guide airflow, the first wind guide assembly comprises a plurality of first wind guide strips, the first wind guide strips are distributed in a rotary arm shape along the circumference, the second wind guide assembly comprises a plurality of second wind guide strips, the second wind guide strips are distributed in a rotary arm shape along the circumference, and the second wind guide strips are arranged obliquely from inside to outside towards the direction of airflow passing through.

[0007] As a specific scheme, a first reinforcing ring is arranged between the first wind guide assembly and the second wind guide assembly, and the first reinforcing ring is arranged along the circumference and is connected and fixed with each first wind guide strip and second wind guide strip one by one.

[0008] As a specific scheme, the rear section of the first wind guide strip from inside to outside forms a first arc-shaped wind guide part, the first arc-shaped wind guide part is in a circular arc shape, the concave length of the first arc-shaped wind guide part is L1, the inner diameter is R1, 95mm < L1 < 115mm, and 45mm < R1 < 60mm.

[0009] As a specific scheme, the rear section of the second wind guide strip from inside to outside forms a second arc-shaped wind guide part, the second arc-shaped wind guide part is in a circular arc shape, the concave length of the second arc-shaped wind guide part is L2, the inner diameter is R2, 130mm < L2 < 145mm, and 110mm < R2 < 120mm.

[0010] As a specific scheme, the front section of the second wind guide strip from inside to outside forms a front wind guide part, a second reinforcing ring is arranged between the front wind guide part and the second arc-shaped wind guide part, and the second reinforcing ring is connected and fixed with the front wind guide part and the second arc-shaped wind guide part.

[0011] The concave surface of the second arc-shaped air guide part is inclined from back to front towards the inner side of the second arc-shaped air guide part.

[0012] As a specific solution, the outer side of the second air guide assembly is connected with a third air guide assembly capable of guiding airflow, the third air guide assembly comprises a plurality of third air guide strips connected with the second air guide strips one by one, the third air guide strips are distributed in a rotary arm shape along the circumference, and the third air guide strips are arranged to be inclined from outside to inside towards the direction of airflow.

[0013] As a specific solution, a third reinforcing ring is arranged between the third air guide assembly and the second air guide assembly, and the third reinforcing ring is arranged along the circumference and connected and fixed with each of the second air guide strips and the third air guide strips.

[0014] As a specific solution, the outer side of the front cover body is connected with an outer rim, and a wind-blocking inclined surface is arranged at the front side position of the outer rim and arranged to be inclined from inside to outside towards the direction of airflow.

[0015] As a specific solution, the outer rim is connected with a rear cover body at the front side position in the direction of airflow, the outer rim is tightly clamped around the rear cover body, the outer rim is connected with a movable clamping block, the movable clamping block has a rotating shaft for movably connecting with the outer rim, the movable clamping block is provided with a limiting portion capable of clamping the rear cover body, and the movable clamping block is swung around the rotating shaft to enable the limiting portion to be connected and matched with the rear cover body or separated from each other.

[0016] As a specific solution, the outer rim is provided with a plug-in hole, the limiting portion can be embedded in the plug-in hole and tightly matched with the plug-in hole, or the limiting portion can be separated from the plug-in hole through elastic deformation, the limiting portion and the outer rim are respectively provided with a lower clamping protrusion and an upper clamping protrusion, and the lower clamping protrusion and the upper clamping protrusion abut against each other to enable the limiting portion to be tightly matched with the plug-in hole.

[0017] The rear cover body is provided with a plurality of framework strips, the limiting portion is provided with a avoiding slot corresponding to the framework strip, and when the limiting portion is tightly matched with the plug-in hole, the framework strip is embedded in the avoiding slot.

[0018] The beneficial effects of the present application are as follows:

[0019] The cooperation of the first air guide assembly and the second air guide assembly can make the airflow have a certain rotating effect after passing through the front cover body, thereby delaying the speed of the airflow spreading along the circumference, so that the airflow can be blown to a relatively farther distance along the air outlet direction. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of the first embodiment of the present application Figure One .

[0021] Figure 2 Structure diagram of the first embodiment of the present applicationFigure Two .

[0022] Figure 3 is a use state schematic diagram of the first embodiment of the utility model Figure One .

[0023] Figure 4 is a use state schematic diagram of the first embodiment of the utility model Figure Two .

[0024] Figure 5 is the enlarged view of A place of the first embodiment of the utility model.

[0025] Figure 6 is the enlarged view of B place of the first embodiment of the utility model.

[0026] Figure 7 is the enlarged view of C place of the first embodiment of the utility model.

[0027] Figure 8 is the enlarged view of D place of the first embodiment of the utility model.

[0028] Figure 9 is a structure schematic diagram of the second embodiment of the utility model Figure One .

[0029] Figure 10 is a structure schematic diagram of the second embodiment of the utility model Figure Two . DETAILED DESCRIPTION

[0030] The utility model will be further described below in combination with the drawings and embodiments.

[0031] First embodiment:

[0032] Referring to Figures 1-8 , the air deflector for the large-diameter fan comprises a front cover body 1, the front cover body 1 comprises a first air guide assembly and a second air guide assembly arranged in sequence from inside to outside and capable of guiding airflow, the first air guide assembly comprises a plurality of first air guide strips 11, the first air guide strips 11 are distributed in the form of rotary arms in the circumferential direction, and the first air guide assembly can make the part close to the central position in the gas passing through the front cover body 1 generate a spiral columnar airflow.

[0033] The second air guide assembly comprises a plurality of second air guide strips 12, the second air guide strips 12 are distributed in the form of rotary arms in the circumferential direction, the second air guide assembly can make the part relatively far away from the central position in the gas passing through the front cover body 1 generate a spiral columnar airflow, and the spiral columnar airflow generated by the second air guide assembly can also have a certain surrounding effect on the spiral columnar airflow generated by the first air guide assembly, so as to further delay the speed of the spiral columnar airflow generated by the first air guide assembly spreading outward.

[0034] The second air guide strip 12 is arranged obliquely from inside to outside along the direction of the air flow, which increases the length of the second air guide strip 12 and prolongs the distance of the air flow guided by the second air guide strip 12, and the air passing through the front cover 1 is better gathered.

[0035] The first air guide assembly and the second air guide assembly can make the air flow passing through the front cover 1 have a certain rotating effect, thereby delaying the speed of the air flow spreading in the circumferential direction, so that the air flow can be blown to a relatively farther distance along the air outlet direction.

[0036] Further, the first air guide assembly and the second air guide assembly are provided with a first reinforcing ring 14, which is arranged in the circumferential direction and connected and fixed with each of the first air guide strip 11 and the second air guide strip 12, thereby improving the structural strength of the connection position of the first air guide assembly and the second air guide assembly, and preventing the front cover 1 from being deformed as a whole.

[0037] Further, the first air guide strip 11 forms a first arc-shaped air guide part 111 at the rear section from inside to outside, the first arc-shaped air guide part 111 is in a circular arc shape, the concave length of the first arc-shaped air guide part 111 is L1, and the inner diameter is R1, 95mm < L1 < 115mm, and 45mm < R1 < 60mm.

[0038] Further, the second air guide strip 12 forms a second arc-shaped air guide part 121 at the rear section from inside to outside, the second arc-shaped air guide part 121 is in a circular arc shape, the concave length of the second arc-shaped air guide part 121 is L2, and the inner diameter is R2, 130mm < L2 < 145mm, and 110mm < R2 < 120mm.

[0039] Further, the concave surface of the second arc-shaped air guide part 121 is from the rear to the front towards the inner side of the second arc-shaped air guide part 121, which further enhances the tendency of the air flow passing through the second arc-shaped air guide part 121 to generate a spiral columnar air flow.

[0040] Further, the outer side of the second air guide assembly is connected with a third air guide assembly capable of guiding the air flow, the third air guide assembly includes a plurality of third air guide strips 13 connected one by one with the second air guide strips 12, the third air guide strips 13 are distributed in the form of rotary arms in the circumferential direction, which can make the part relatively close to the periphery of the air passing through the front cover 1 generate a spiral columnar air flow, thereby prolonging the blowing distance of the part, and also can surround the spiral columnar air flow generated by the second air guide assembly, thereby further delaying the speed of the spiral columnar air flow generated by the second air guide assembly to spread outward.

[0041] The third air guide strip 13 is arranged obliquely from outside to inside along the direction of the air flow, which increases the length of the third air guide strip 13 and further improves the effect of guiding the air flow by the third air guide assembly.

[0042] Further, a third reinforcing ring 16 is arranged between the third air guide assembly and the second air guide assembly, and is circumferentially arranged and fixedly connected with each of the second air guide strips 12 and the third air guide strips 13, thereby improving the structural strength of the connection position between the second air guide assembly and the third air guide assembly, and preventing the front cover body 1 from being deformed as a whole.

[0043] Further, an outer rim 2 is connected to the outer periphery of the front cover body 1, and a wind blocking inclined surface 21 is arranged at the front side of the outer rim 2. The wind blocking inclined surface 21 is arranged to be inclined from inside to outside towards the direction of the airflow. The outer rim 2 can be used to fix the front cover body 1, and the wind blocking inclined surface 21 can be used to concentrate the airflow passing through the front cover body 1 from the outer side, thereby further improving the airflow concentration.

[0044] Further, the outer rim 2 is connected to the front side of the rear cover body 3 in the direction of the airflow, and the outer rim 2 is circumferentially clamped to the rear cover body 3. The outer rim 2 is connected to a movable clamping block 4, and the movable clamping block 4 has a rotating shaft for movably connecting with the outer rim 2. The movable clamping block 4 is provided with a limiting portion 41 capable of clamping the rear cover body 3. The movable clamping block 4 is capable of being swung around the rotating shaft to connect or separate the limiting portion 41 from the rear cover body 3. The outer rim 2 can be used to fix the rear cover body 3, and the movable clamping block 4 can be used to quickly assemble or disassemble the rear cover body 3.

[0045] Further, the outer rim 2 is provided with a plug-in hole (not shown in the figure), and the limiting portion 41 can be embedded in the plug-in hole and tightly fitted with the plug-in hole, or the limiting portion 41 can be separated from the plug-in hole through elastic deformation. The limiting portion 41 and the outer rim 2 are respectively provided with a lower clamping protrusion 411 and an upper clamping protrusion 23. The lower clamping protrusion 411 and the upper clamping protrusion 23 abut each other to keep the limiting portion 41 tightly fitted with the plug-in hole. The connection structure between the movable clamping block 4 and the outer rim 2 is simple, and the user can easily operate it. The rear cover body 3 and the outer rim 2 do not need to be fixed and assembled through complex screwing or buckle connection, thereby improving the assembly efficiency.

[0046] Further, the rear cover body 3 is provided with a plurality of frame strips 31, and the limiting portion 41 is provided with a corresponding avoiding slot 412. When the limiting portion 41 is tightly fitted with the plug-in hole, the frame strips 31 are embedded in the avoiding slots 412. The frame strips 31 can improve the overall structural strength of the rear cover body 3, and further improve the fixing and positioning effect of the limiting portion 41 on the rear cover body 3.

[0047] Second embodiment:

[0048] Reference Figure 9 , Figure 10The difference between the embodiment and the first embodiment is that the second air guide strip 12 of the air guide cover for the large-diameter fan is formed with a front air guide part 122 from the inner to the outer front section, and a second reinforcing ring 15 is arranged between the front air guide part 122 and the second arc-shaped air guide part 121, and the second reinforcing ring 15 is connected and fixed with the front air guide part 122 and the second arc-shaped air guide part 121 respectively, so that the structural strength of the whole second air guide assembly is improved.

[0049] The rest of the unrecited parts are the same as the first embodiment, which will not be repeated here.

[0050] The above embodiments are only preferred schemes of the present application, and the present application can have other embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope set by the claims of the present application.

Claims

1. A wind guide cover for a large-diameter fan, characterized in that, The device includes a front cover (1), which includes a first air guide assembly and a second air guide assembly arranged sequentially from the inside to the outside and capable of guiding airflow. The first air guide assembly includes a plurality of first air guide strips (11), which are distributed in a spiral arm shape along the circumference. The second air guide assembly includes a plurality of second air guide strips (12), which are distributed in a spiral arm shape along the circumference. The second air guide strips (12) are inclined from the inside to the outside in the direction of airflow.

2. The air guide cover for a large-diameter fan according to claim 1, characterized in that: A first reinforcing ring (14) is provided between the first air guide assembly and the second air guide assembly. The first reinforcing ring (14) is arranged circumferentially and is connected and fixed to each of the first air guide strip (11) and the second air guide strip (12).

3. The air guide cover for a large-diameter fan according to claim 1, characterized in that: The first air guide strip (11) forms a first arc-shaped air guide part (111) from the inside to the outside. The first arc-shaped air guide part (111) is in the shape of an arc. The concave length of the first arc-shaped air guide part (111) is L1, the inner diameter is R1, 95mm < L1 < 115mm, 45mm < R1 < 60mm.

4. The air guide cover for a large-diameter fan according to claim 1, characterized in that: The second air guide strip (12) forms a second arc-shaped air guide part (121) from the inside to the outside. The second arc-shaped air guide part (121) is in the shape of an arc. The concave length of the second arc-shaped air guide part (121) is L2, the inner diameter is R2, 130mm < L2 < 145mm, 110mm < R2 < 120mm.

5. The air guide cover for a large-diameter fan according to claim 4, characterized in that: The second air guide strip (12) forms a front air guide section (122) from the inner and outer front sections. A second reinforcing ring (15) is provided between the front air guide section (122) and the second arc-shaped air guide section (121). The second reinforcing ring (15) is connected and fixed to the front air guide section (122) and the second arc-shaped air guide section (121) respectively. The concave surface of the second arc-shaped air guide (121) faces the inner side of the second arc-shaped air guide (121) from back to front.

6. The air guide cover for a large-diameter fan according to claim 1, characterized in that: The outer side of the second air guide component is connected to a third air guide component that can guide the airflow. The third air guide component includes several third air guide strips (13) that are connected one-to-one with the second air guide strip (12). The third air guide strips (13) are distributed in a spiral arm shape along the circumference and are inclined from the outside to the inside in the direction of the airflow.

7. The air guide cover for a large-diameter fan according to claim 6, characterized in that: A third reinforcing ring (16) is provided between the third air guide assembly and the second air guide assembly. The third reinforcing ring (16) is arranged circumferentially and is connected and fixed to each of the second air guide strips (12) and the third air guide strips (13).

8. The air guide shroud for a large-diameter fan according to any one of claims 1-7, characterized in that: The outer periphery of the front cover (1) is connected to an outer ring (2), and a windproof slope (21) is provided on the front side of the outer ring (2). The windproof slope (21) is inclined from the inside to the outside in the direction of airflow.

9. The air guide cover for a large-diameter fan according to claim 8, characterized in that: The outer ring (2) is connected to the rear cover (3) at the front side of the airflow direction. The outer ring (2) is circumferentially clamped to the rear cover (3). The outer ring (2) is connected to a movable locking block (4). The movable locking block (4) has a rotating shaft for movably connecting with the outer ring (2). The movable locking block (4) is provided with a limiting part (41) that can clamp the rear cover (3). The movable locking block (4) swings around the rotating shaft so that the limiting part (41) can be connected and engaged with the rear cover (3) or separated from each other.

10. The air guide cover for a large-diameter fan according to claim 9, characterized in that: The outer ring (2) is provided with a plug hole. The limiting part (41) can be inserted into the plug hole and fit tightly with the plug hole, or the limiting part (41) can be separated from the plug hole through elastic deformation. The limiting part (41) and the outer ring (2) are respectively provided with a lower locking protrusion (411) and an upper locking protrusion (23). The lower locking protrusion (411) and the upper locking protrusion (23) abut against each other so that the limiting part (41) can keep fit tightly with the plug hole. The rear cover (3) has a plurality of skeleton strips (31) distributed on it. The limiting part (41) is provided with a relief groove (412) corresponding to the skeleton strip (31). When the limiting part (41) is tightly fitted with the insertion hole, the skeleton strip (31) is embedded in the relief groove (412).

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