CN113757173A

CN113757173A - High protection type fan box of security

Info

Publication number: CN113757173A
Application number: CN202111084361.5A
Authority: CN
Inventors: 张勤斌
Original assignee: Guangdong Woxing Electric Co ltd
Current assignee: Guangdong Woxing Electric Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2021-12-07

Abstract

The invention discloses a protective type fan box with high safety, which comprises a box body, wherein one side of the box body is of an opening structure, a side plate is fixed at one end of the opening of the box body through a bolt, the outer walls of the two vertical sides of the box body are respectively provided with an air inlet and an air outlet, a fan is fixed on the bottom surface of the interior of the box body by a bolt at one end close to the air outlet, a rectangular frame is vertically and slidably arranged at the position of the box body close to the middle position, a placing groove is vertically arranged on the upper part of the rectangular frame along the length direction of the rectangular frame, the placing groove can contain a filter screen, a through groove is vertically arranged at one end of the outer wall of the side plate, the rectangular frame can pass through the through groove, and the side plate is fixedly connected with the fixed box at the position of the through groove, and one side of the fixed box close to the box body is of an opening structure, the drawing rectangular frame cleaning device has the advantages that effective cleaning is achieved while the rectangular frame is drawn, replacement cost is reduced, dust is effectively controlled to be lifted and splashed during cleaning, and cleanliness of a working area is guaranteed.

Description

High protection type fan box of security

Technical Field

The invention relates to the technical field of fan boxes, in particular to a protective fan box with high safety.

Background

The fan is a driven fluid machine which is a short-term Chinese habit for gas compression and gas delivery machines, generally speaking, the fan comprises a ventilator, a blower and a wind driven generator, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and ventilation and induced air of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.

The fan case plays the effect of protection fan, fan case often cooperates the fan to appear in each application, however, because fan incasement portion need set up the filter screen, and the filter screen is for adaptation fan case size, the filter screen size that often needs is bigger, mean that the cost is higher, the filter screen in the fan case uses a terminal time rear surface and adheres to more impurity, if direct change, cause the cost to improve, need set up self-cleaning mechanism, and current fan case change filter screen need dismantle fan case curb plate, it is comparatively inconvenient, and open the dismantlement curb plate at the during operation and change the operation, give the safe threat of causing of change personnel, consequently, the high protective type fan case of security is provided at present.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a protective type fan box with high safety.

In order to achieve the purpose, the invention adopts the following technical scheme:

a protective type fan box with high safety comprises a box body, wherein one side of the box body is of an opening structure, a side plate is fixed at one end of the opening of the box body through a bolt, the outer walls of the two vertical sides of the box body are respectively provided with an air inlet and an air outlet, and a fan is fixed on the bottom surface of the box body near the air outlet by bolts, and the air outlet end of the fan is communicated with the air outlet, a rectangular frame is vertically and slidably arranged at the position, close to the middle position, of the box body, a placing groove is vertically formed in the upper portion of the rectangular frame along the length direction of the rectangular frame, the placing groove can contain a filter screen, a blocking mechanism is arranged at the upper portion of one side of the rectangular frame, a stop block is fixedly connected to one end, far away from the side plate, of the upper portion of the rectangular frame, a through groove is vertically formed in one end of the outer wall of the side plate, the rectangular frame can pass through the through groove, and the side plate is fixedly connected with a fixed box through a groove position, one side of the fixed box, which is close to the box body, is of an opening structure, and a pulling ash removal mechanism is arranged in the fixed box.

Preferably, the box body is far away from the horizontal fixedly connected with sand grip of curb plate one side inner wall lower part, open along its length direction in the rectangular frame bottom has the spout, and the sand grip slides and locates in the spout.

Further, pulling deashing mechanism keeps away from box one side outer wall including fixed case and opens perpendicularly and have the bar groove, rectangular frame accessible bar groove, fixed incasement portion bottom surface is located bar groove both sides and all rotates perpendicularly and is equipped with a brush roll, and the brush roll inserts along its surface and is equipped with the brush hair, and two brush roll lower extremes are opened along its a circle outer wall and are had first outer ring gear, rectangular frame both sides lower part is all opened along its length direction has tooth, and tooth and first outer ring gear looks adaptation, fixed incasement portion bottom surface both ends all rotate perpendicularly and are equipped with the cleaning roller, and the cleaning roller inserts along its outer wall equidistance and are equipped with a plurality of grey round pins of dialling, dial grey round pin and brush hair contact, two cleaning roller lower extremes all overlap and are equipped with fixed with first gear, two first gears are respectively in two outer ring gear meshing, fixed incasement portion is equipped with inhales grey collection subassembly.

Preferably, inhale grey collection subassembly and include ancient fixed case lower part fixed connection's connecting box, and the connecting box upper end is open structure, fixed bottom of the case face is opened and is had a plurality of ventilation holes, and fixed bottom of the case face outer wall intermediate position department rotates and is equipped with a pivot, and the pivot lower extreme along its a circle of fixedly connected with flabellum, and the pivot upper end is opened along its a circle of outer wall has the second outer ring gear, and one of them brush roll lower extreme passes fixed bottom of the case face outer wall key and is connected with the second gear, and second gear and the meshing of the second outer ring gear, the sliding of connecting box one side lower part is equipped with the drawer, the equal horizontally fixedly connected with spreader in both ends about the rectangle frame is close to fixed case one side, and two spreader one ends all run through the same pole setting of bar groove fixedly connected with, are equipped with chucking mechanism between pole setting and the fixed case.

Still further, chucking mechanism includes pole setting one side intermediate position department bolt fastening's door shape and draws the handle, fixed case one side is located the fixed block that bar groove both ends were all fixed to be set up, and the fixed block is close to one side relatively and has all opened the half slot, the equal embedded marble spring plunger of installing of pole setting both sides outer wall, and marble spring plunger and half slot looks adaptation.

According to a further scheme of the invention, the blocking mechanism comprises inserting columns which are inserted into two ends of the upper part of one side of the rectangular frame in a sliding manner, one ends of the inserting columns are horizontally and fixedly connected with the same transverse bar, one ends of the two inserting columns, which are far away from the transverse bar, penetrate through the inner wall of one side of the placing groove and are welded with limiting discs, and a spring is sleeved between each limiting disc and the inner wall of one side of the placing groove on each inserting column.

As a further scheme of the invention, the blocking mechanism comprises a bolt which is inserted in a sliding manner at the middle position of the upper part of one side of the rectangular frame, one end of the bolt penetrates through the inner wall of one side of the placing groove and is bonded with the magnetic disc, and the upper part of the inner wall of one side of the placing groove is bonded with the magnet which is magnetically attracted with the magnetic disc.

The invention has the beneficial effects that:

1. through sliding the rectangle frame and setting up in the box, the pulling deashing mechanism that sets up in the fixed incasement of cooperation, when making people need clean the filter screen in the rectangle frame, only need pulling door shape to draw the handle and drive the rectangle frame and slide towards fixed case one side along the sand grip, two brush rolls are driven to rotate when tooth and the first outer gear ring meshing of rectangle frame both sides lower part, the brush hair on the brush roll carries out the deashing to the attached dust on filter screen surface and handles, drive the cleaning roller rotation of brush roll one side through two first gears simultaneously, make the brush hair of constantly stirring of dialling grey round pin on the cleaning roller, make the dust whereabouts of its brush down, the cleaning effect has been guaranteed, make and realize effective cleanness in pull rectangle frame, the replacement cost is reduced.

2. Through the ash collection subassembly of inhaling that sets up at the connecting box of fixed incasement portion intercommunication setting and connecting box, when making fixed incasement carry out the deashing operation, a large amount of ash that raises fill fixed incasement, drive the second gear rotation of lower part when one of them brush roll pivoted, make the flabellum rotation in the connecting box induced draft, make the dust in the fixed incasement inhale the connecting box by the ventilation hole and collect, people only need stimulate the drawer clearance can, effectively controlled the dust raise splash, guarantee work area's cleanliness factor, and reasonable in design, and do not use electrical components, and the cost is saved.

3. Establish the subassembly through keeping off that sets up on one side upper portion of rectangular frame for when people need to change the filter screen, only need pull out rectangular frame back and pull the horizontal bar, drive two and insert the post and move backward, people take out the filter screen can, change new filter screen after, loosen the horizontal bar, two insert the post and inject and block the standing groove upper end, avoid the filter screen to rock.

Drawings

Fig. 1 is a schematic perspective view of a protective type fan box with high safety according to the present invention;

FIG. 2 is a schematic perspective sectional view of a protective type fan box with high safety according to the present invention;

FIG. 3 is a schematic perspective view of a rectangular frame of a protective type fan box with high safety according to the present invention;

FIG. 4 is a schematic perspective view of a fixing box of a protective fan box with high safety according to the present invention;

FIG. 5 is a schematic view of a planar structure of a fixing box of the protective type fan box with high safety provided by the invention;

FIG. 6 is a schematic top view of a clamping mechanism of a protective fan box with high safety according to the present invention;

fig. 7 is a schematic top view of a rectangular frame of the protection type fan box with high safety according to embodiment 1 of the present invention;

fig. 8 is a schematic top view of a rectangular frame of an embodiment 2 of a protective type fan box with high safety according to the present invention.

In the figure: 1. a box body; 2. an air inlet; 3. an air outlet; 4. a fixed box; 5. a connecting box; 6. erecting a rod; 7. a fixed block; 8. a fan; 9. a rectangular frame; 10. a strip-shaped groove; 11. a drawer; 12. a door-shaped pull handle; 13. a convex strip; 14. a stopper; 15. a placement groove; 16. a horizontal bar; 17. cleaning the roller; 18. a brush roll; 19. a first gear; 20. a first outer ring gear; 21. a ball spring plunger; 22. a cross post; 23. a second gear; 24. a rotating shaft; 25. a fan blade; 26. a second outer gear ring; 27. a vent hole; 28. a side plate; 29. a semicircular groove; 30. inserting a column; 31. a limiting disc; 32. a spring; 33. a chute; 34. magnet, 35, bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Embodiment 1, referring to fig. 1-7, a high-safety protective type fan box comprises a box body 1, one side of the box body 1 is of an open structure, a side plate 28 is fixed at one open end of the box body 1 through a bolt, an air inlet 2 and an air outlet 3 are respectively formed in the outer walls of the two vertical sides of the box body 1, a fan 8 is fixed at one end of the inner bottom surface of the box body 1 close to the air outlet 3 through a bolt, the air outlet end of the fan 8 is communicated with the air outlet 3, a rectangular frame 9 is vertically slidably arranged at the middle position of the box body 1, a placing groove 15 is vertically formed in the upper portion of the rectangular frame 9 along the length direction of the rectangular frame, the placing groove 15 can accommodate a filter screen, a blocking mechanism is arranged at the upper portion of one side of the rectangular frame 9, a blocking block 14 is fixedly connected to one end of the upper portion of the rectangular frame 9 far away from the side plate 28, a through groove is vertically formed in one end of the outer wall of the side plate 28, the rectangular frame 9 can pass through groove, and the side plate 28 is fixedly connected to a fixing box 4, and one side of the fixed box 4 close to the box body 1 is of an opening structure, and a pulling ash cleaning mechanism is arranged in the fixed box 4.

In this embodiment, a protruding strip 13 is horizontally and fixedly connected to a lower portion of an inner wall of the side of the box body 1 away from the side plate 28, a sliding slot 33 is formed in the bottom of the rectangular frame 9 along the length direction thereof, and the protruding strip 13 is slidably disposed in the sliding slot 33.

In the concrete implementation, the pulling deashing mechanism comprises a fixed box 4, a strip-shaped groove 10 is vertically formed in the outer wall of one side, far away from a box body 1, of the fixed box 4, a rectangular frame 9 can pass through the strip-shaped groove 10, a brush roller 18 is vertically and rotatably arranged on the bottom surface of the fixed box 4 and positioned on two sides of the strip-shaped groove 10, bristles are inserted into the brush roller 18 along the surface of the brush roller, a first outer gear ring 20 is arranged at the lower ends of two brush rollers 18 along one circle of the outer wall of the first brush roller, teeth are arranged on the lower portions of two sides of the rectangular frame 9 along the length direction of the rectangular frame, the teeth are matched with the first outer gear ring 20, cleaning rollers 17 are vertically and rotatably arranged on two ends of the bottom surface of the fixed box 4, a plurality of ash poking pins are equidistantly inserted into the cleaning rollers 17 along one circle of the outer wall of the cleaning rollers, the ash poking pins are in contact with the bristles, a first gear 19 is fixedly sleeved at the lower ends of the two cleaning rollers 17, the two first gear rings 20 are respectively meshed with the two first gear rings, an ash sucking and collecting assembly is arranged on the lower portion of the fixed box 4, the teeth of the brush roller 18 on two sides of the rectangular frame 9, and used for treating dust attached to the dust on the surface of the filter screen And the cleaning effect is ensured.

Further, the ash absorption and collection assembly comprises a connecting box 5 fixedly connected with the lower part of the ancient fixed box 4, the upper end of the connecting box 5 is of an open structure, the bottom surface of the fixed box 4 is provided with a plurality of vent holes 27, a rotating shaft 24 is rotatably arranged at the middle position of the outer wall of the bottom surface of the fixed box 4, the lower end of the rotating shaft 24 is fixedly connected with a fan blade 25 along one circle, the upper end of the rotating shaft 24 is provided with a second outer gear ring 26 along one circle of the outer wall, the lower end of one brush roll 18 penetrates through the outer wall of the bottom surface of the fixed box 4 to be connected with a second gear 23, the second gear 23 is meshed with the second outer gear ring 26, the lower part of one side of the connecting box 5 is slidably provided with a drawer 11, the upper end and the lower end of one side of the rectangular frame 9 close to the fixed box 4 are horizontally and fixedly connected with cross posts 22, one end of each of the two cross posts 22 penetrates through the strip-shaped groove 10 to be fixedly connected with the same vertical rod 6, a clamping mechanism is arranged between the vertical rod 6 and the fixed box 4, the fan blade 25 in the connecting box 5 rotates to suck air, make the dust in the fixed box 4 by the ventilation hole 27 by the suction in the connecting box 5 collect, people only need stimulate drawer 11 clearance can, effectively controlled the dust to raise splash, guarantee work area's cleanliness, reasonable in design.

Specifically, chucking mechanism includes 6 one side intermediate position departments of pole setting bolt fastening's door shape and draws 12, and fixed 4 one side of case are located the fixed block 7 that the equal fixed setting in bar groove 10 both ends, and fixed block 7 is close to one side relatively and has all opened

half slot

29, and 6 both sides outer walls of pole setting are all embedded to be installed marble spring plunger 21, and

marble spring plunger

21 and 29 looks adaptations of half slot.

Specifically, keep off and establish the mechanism and include that rectangle frame 9 one side upper portion both ends all slide and insert the post 30 of inserting of establishing, and insert the same horizontal bar 16 of post 30 one end level fixedly connected with, two insert the post 30 and keep away from horizontal bar 16 one end and all pass standing groove 15 one side inner wall welding and have spacing dish 31, insert and all overlap on the post 30 and be equipped with a spring 32 between locating dish 31 and standing groove 15 one side inner wall.

From the above description, it can be seen that the above embodiment 1 of the present invention achieves the following technical effects: when the filter screen in the rectangular frame 9 needs to be cleaned, only the door-shaped pull handle 12 needs to be pulled to drive the rectangular frame 9 to slide towards one side of the fixed box 4 along the convex strips 13, the teeth at the lower parts of the two sides of the rectangular frame 9 are meshed with the first outer gear ring 20 to drive the two brush rolls 18 to rotate, the bristles on the brush rolls 18 are used for cleaning dust attached to the surface of the filter screen, meanwhile, the two first gears 19 are used for driving the cleaning roll 17 at one side of the brush rolls 18 to rotate, so that the bristles are continuously stirred by the dust stirring pin on the cleaning roll 17, the dust brushed by the bristles falls down, the cleaning effect is ensured, effective cleaning is realized while the rectangular frame 9 is pulled, the replacement cost is reduced, when the dust cleaning operation is carried out in the fixed box 4, a large amount of dust is filled in the fixed box 4, at the moment, because one of the brush rolls 18 rotates to drive the second gear 23 at the lower part to rotate, the fan blades 25 in the connecting box 5 are rotated for air suction, make the dust in the fixed box 4 by the collection in the ventilation hole 27 is inhaled connecting box 5, people only need stimulate drawer 11 clearance can, effective control the dust is kicked up and is splashed, guarantee work area's cleanness, and reasonable in design, and do not use electrical components, therefore, the cost is saved, when people need to change the filter screen, only need pull out behind rectangular frame 9 behind the pulling crossband 16, drive two and insert post 30 rearward shifting, people take out the filter screen can, change new filter screen after, loosen crossband 16, two insert post 30 and inject and block 15 upper ends of standing groove, avoid the filter screen to rock.

Embodiment 2, referring to fig. 1 to 6 and 8, only the difference from embodiment 1 is that the blocking mechanism includes a plug 35 slidably inserted into a middle position of an upper portion of one side of the rectangular frame 9, and one end of the plug 35 penetrates through an inner wall of one side of the placement groove 15 to bond a magnetic disc, and a magnet 34 is bonded to an upper portion of the inner wall of one side of the placement groove 15, and the magnet 34 is magnetically attracted to the magnetic disc.

The above embodiment 2 of the present invention achieves the following technical effects: when the filter screen in the rectangular frame 9 needs to be cleaned, only the door-shaped pull handle 12 needs to be pulled to drive the rectangular frame 9 to slide towards one side of the fixed box 4 along the convex strips 13, the teeth at the lower parts of the two sides of the rectangular frame 9 are meshed with the first outer gear ring 20 to drive the two brush rolls 18 to rotate, the bristles on the brush rolls 18 are used for cleaning dust attached to the surface of the filter screen, meanwhile, the two first gears 19 are used for driving the cleaning roll 17 at one side of the brush rolls 18 to rotate, so that the bristles are continuously stirred by the dust stirring pin on the cleaning roll 17, the dust brushed by the bristles falls down, the cleaning effect is ensured, effective cleaning is realized while the rectangular frame 9 is pulled, the replacement cost is reduced, when the dust cleaning operation is carried out in the fixed box 4, a large amount of dust is filled in the fixed box 4, at the moment, because one of the brush rolls 18 rotates to drive the second gear 23 at the lower part to rotate, the fan blades 25 in the connecting box 5 are rotated for air suction, make the dust in the fixed box 4 by the ventilation hole 27 by the suction collection in the connecting box 5, people only need stimulate drawer 11 clearance can, effectively controlled the dust to raise and splash, guarantee work area's cleanness, and reasonable in design, and do not use electrical components, practice thrift the cost, when people need change the filter screen, only need pull out bolt 35 and make it separate with magnet 34, take out the filter screen, and then put into new filter screen, it blocks standing groove 15 upper end to inject bolt 35, avoid the filter screen to rock.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective type fan box with high safety comprises a box body (1) and is characterized in that one side of the box body (1) is of an open structure, a side plate (28) is fixed to one end of the open end of the box body (1) through a bolt, an air inlet (2) and an air outlet (3) are respectively formed in the outer walls of the two vertical sides of the box body (1), a fan (8) is fixed to one end, close to the air outlet (3), of the inner bottom surface of the box body (1) through a bolt, the air outlet end of the fan (8) is communicated with the air outlet (3), a rectangular frame (9) is vertically arranged at the position, close to the middle position, of the box body (1) in a sliding mode, a placing groove (15) is vertically formed in the upper portion of the rectangular frame (9) along the length direction of the rectangular frame, a filter screen can be accommodated in the placing groove (15), a blocking mechanism is arranged on the upper portion of one side of the rectangular frame (9), a stop block (14) is fixedly connected to one end, far away from the side plate (28), and a through groove is vertically formed in one end of the outer wall of the side plate (28), the rectangular frame (9) can pass through the through groove, the side plate (28) is located at the through groove position and fixedly connected with the fixed box (4), the side, close to the box body (1), of the fixed box (4) is of an open structure, and a pulling ash removal mechanism is arranged in the fixed box (4).

2. The protective type fan box with high safety according to claim 1, wherein a protruding strip (13) is horizontally and fixedly connected to the lower portion of the inner wall of the box body (1) far away from the side plate (28), a sliding groove (33) is formed in the bottom of the rectangular frame (9) along the length direction of the rectangular frame, and the protruding strip (13) is slidably arranged in the sliding groove (33).

3. The protective type fan box with high safety according to claim 2, characterized in that the ash removing mechanism comprises a fixed box (4) with a strip-shaped groove (10) vertically formed on the outer wall of one side away from the box body (1), a rectangular frame (9) can pass through the strip-shaped groove (10), a brush roll (18) is vertically and rotatably arranged on the bottom surface of the fixed box (4) and positioned on two sides of the strip-shaped groove (10), brush bristles are inserted into the brush roll (18) along the surface of the brush roll, a first outer gear ring (20) is formed at the lower end of each brush roll (18) along the outer wall of one circle, teeth are respectively arranged on the lower portions of two sides of the rectangular frame (9) along the length direction of the rectangular frame, the teeth are matched with the first outer gear ring (20), cleaning rolls (17) are vertically and rotatably arranged at two ends of the bottom surface of the fixed box (4), and a plurality of ash pulling pins are inserted into the cleaning rolls (17) along the outer wall of the cleaning roll at equal intervals, dial grey round pin and brush hair contact, two cleaning roller (17) lower extremes all overlap and are established and are fixed with first gear (19), and two first gear (19) are respectively in two first outer ring gear (20) meshing, fixed case (4) lower part is equipped with inhales grey collection subassembly.

4. The protective type fan box with high safety according to claim 3, wherein the dust absorption and collection assembly comprises a connecting box (5) fixedly connected with the lower portion of the ancient fixed box (4), the upper end of the connecting box (5) is of an open structure, a plurality of vent holes (27) are formed in the bottom surface of the fixed box (4), a rotating shaft (24) is rotatably arranged in the middle of the outer wall of the bottom surface of the fixed box (4), a fan blade (25) is fixedly connected to the lower end of the rotating shaft (24) along one circle of the outer wall, a second outer gear ring (26) is formed in the upper end of the rotating shaft (24) along one circle of the outer wall, a second gear (23) is connected to the lower end of one brush roller (18) through a key of the outer wall of the bottom surface of the fixed box (4), the second gear (23) is meshed with the second outer gear ring (26), a drawer (11) is slidably arranged on the lower portion of one side of the connecting box (5), cross columns (22) are horizontally and fixedly connected to the upper and lower ends of one side, close to the fixed box (4), of the rectangular frame (9), and one end of each of the two transverse columns (22) penetrates through the same vertical rod (6) fixedly connected with the strip-shaped groove (10), and a clamping mechanism is arranged between the vertical rod (6) and the fixed box (4).

5. The protective type fan box with high safety according to claim 4, wherein the clamping mechanism comprises a door-shaped pull handle (12) fixed by bolts at the middle position of one side of the vertical rod (6), one side of the fixed box (4) is positioned at a fixed block (7) fixedly arranged at both ends of the strip-shaped groove (10), the fixed block (7) is provided with a semicircular groove (29) at one side close to the fixed block, the outer walls of both sides of the vertical rod (6) are embedded with marble spring plungers (21), and the marble spring plungers (21) are matched with the semicircular grooves (29).

6. The protective type fan box with high safety according to claim 1, wherein the blocking mechanism comprises inserting columns (30) which are slidably inserted into two ends of the upper portion of one side of the rectangular frame (9), one ends of the inserting columns (30) are horizontally and fixedly connected with the same cross bar (16), one ends of the two inserting columns (30) far away from the cross bar (16) penetrate through the inner wall of one side of the placing groove (15) and are welded with limiting discs (31), and a spring (32) is sleeved between each limiting disc (31) and the inner wall of one side of the placing groove (15) on each inserting column (30).

7. The protective type fan box with high safety according to claim 1, wherein the blocking mechanism comprises a plug pin (35) which is slidably inserted at the middle position of the upper portion of one side of the rectangular frame (9), one end of the plug pin (35) penetrates through the inner wall of one side of the placing groove (15) and is adhered with a magnetic disc, a magnet (34) is adhered to the upper portion of the inner wall of one side of the placing groove (15), and the magnet (34) and the magnetic disc are attracted magnetically.