CN216199118U

CN216199118U - Negative-pressure air fan with protection function

Info

Publication number: CN216199118U
Application number: CN202122408711.0U
Authority: CN
Inventors: 叶国洲
Original assignee: Sanhe Kefeng Electric Co ltd
Current assignee: Sanhe Kefeng Electric Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a negative pressure fan with a protection function, and relates to the technical field of negative pressure fans. The protective box comprises a protective box, a first open slot and a protective plate, wherein an opening is formed in one surface of the protective box, the first open slot is formed in one side of the upper surface of the protective box, sliding grooves are formed in one side of two opposite surfaces in the protective box, the two sliding grooves are respectively communicated with two ends of the first open slot, a plurality of clamping columns are embedded in the two sliding grooves, the protective plate is installed between the two sliding grooves, the two opposite surfaces of the protective plate are in sliding fit with the clamping columns, one end of the protective plate is in sliding fit with the first open slot, and a plurality of ventilation grooves are formed in one surface of the protective plate. According to the utility model, through the protection plate and the protection box structure, under the condition that the normal operation of the negative pressure fan is not influenced, foreign matters are prevented from entering the striking fan, the normal operation of the striking fan is ensured, the service life of the striking fan is prolonged, and meanwhile, through the sliding groove and the first open slot structure, the protection plate is convenient to mount and dismount, so that the later maintenance and cleaning are convenient.

Description

Negative-pressure air fan with protection function

Technical Field

The utility model belongs to the technical field of negative-pressure fans, and particularly relates to a negative-pressure fan with a protection function.

Background

The negative pressure fan is a machine which can be improved by utilizing the cooling principle of air convection and negative pressure ventilation, and is a machine which can naturally suck fresh air from a gate or a window opposite to an installation place and quickly and forcibly discharge indoor hot gas outdoors, and any problem of poor ventilation can be solved, the cooling and ventilation effect can reach 90-97 percent, and the negative pressure fan has the characteristics of low investment cost, large air volume, low noise, low energy consumption, stable operation, long service life, high efficiency and the like, and the louver can be automatically opened and closed to achieve the effects of dust prevention, water prevention and elegant appearance; the air blower can blow air and exhaust air, and is the best choice for cooling and ventilating modern workshops. The environment-friendly and energy-saving negative pressure fan becomes the mainstream of the ventilation and cooling equipment market, is the latest type of ventilator, belongs to an axial flow fan, and is called as the negative pressure fan because of being mainly applied to negative pressure type ventilation and cooling engineering. The negative pressure type aeration cooling engineering comprises two meanings of aeration and cooling, and the problems of aeration and cooling are solved simultaneously.

The existing negative pressure fan lacks of a protection structure, when the negative pressure fan is used, the protection capability of the fan blades inside the negative pressure fan is low, foreign matters easily enter the fan blades, the fan blades are damaged, and the service life of the fan blades is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a negative pressure fan with a protection function, and solves the problem of low protection capability in the prior art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a negative pressure fan with a protection function, which comprises a protection box, a first open slot and a protection plate, wherein the protection box is of a cavity structure, an opening is formed in one surface of the protection box, the first open slot is formed in one side of the upper surface of the protection box, sliding slots are formed in one side of two opposite surfaces in the protection box, the two sliding slots are respectively communicated with two ends of the first open slot, a plurality of clamping columns are embedded in the two sliding slots, the protection plate is installed between the two sliding slots, the two opposite surfaces of the protection plate are in sliding fit with the clamping columns, one end of the protection plate is in sliding fit with the first open slot, the protection plate is convenient to install and disassemble, so that later maintenance and cleaning are convenient, the ventilation slots are formed in one surface of the protection plate, foreign matters are prevented from entering a striking fan under the condition that the normal operation of the negative pressure fan is not influenced, guarantee its normal operating, improve its life, surface mounting has the handle on the guard plate.

Furthermore, another surface of protective housing is provided with the second open slot, a plurality of supporting sleeves are installed to the inside bottom surface of protective housing, the support column has been inlayed to the inside dress of supporting sleeve.

Furthermore, sliding fit is carried out between the peripheral side face of one end of the supporting column and the inner surface of the supporting sleeve, a supporting spring is arranged between the lower surface of the supporting column and the inner bottom face of the supporting sleeve, the supporting capacity of the bearing plate is improved, and the bearing plate is arranged on the upper surface of the supporting column.

Furthermore, surface mounting has negative-pressure air fan on the loading board, negative-pressure air fan two relative surface mounting has a plurality of screwed fittings, two relative surfaces of guard box have all run through a plurality of third opening grooves.

Furthermore, the position of the third opening groove is matched with the position of a screw connector, a screw rod is screwed in the screw connector, and one end of the screw rod extends to the outside of the protective box through the third opening groove.

Further, the limiting plate is installed to screw rod one end, the diameter of limiting plate is greater than the diameter in third opening groove, improves negative-pressure air fan at the inside stability of protective housing, avoids the during operation to rock.

Further, a wind gap is arranged on the surface of the negative pressure fan, the wind gap is communicated with the inside of the negative pressure fan, and fan blades are embedded in the wind gap.

The utility model has the following beneficial effects:

1. according to the utility model, the protection is provided for the negative pressure fan through the protection plate and the protection box structure, under the condition that the normal operation of the negative pressure fan is not influenced, foreign matters are prevented from entering the striking fan, the normal operation of the striking fan is ensured, the service life of the striking fan is prolonged, and meanwhile, the protection plate is convenient to mount and dismount through the chute and the first open slot structure, so that the later maintenance and cleaning are convenient.

2. The utility model improves the supporting capacity of the bearing plate through the supporting sleeve and the supporting spring structure, and simultaneously improves the stability of the negative pressure fan in the protective box through the screw connector and the screw rod structure, thereby avoiding the shaking during the work.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a negative pressure air blower with a protection function according to the present invention;

FIG. 2 is a schematic rear view of a negative pressure air blower with a protection function according to the present invention;

FIG. 3 is a front view of a negative pressure air blower with a protection function according to the present invention;

FIG. 4 is a schematic top view of a negative pressure air blower with protection function according to the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 4 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a protective box; 2. an opening; 3. a support sleeve; 4. a support pillar; 5. a carrier plate; 6. a negative pressure fan; 7. a tuyere; 8. a fan blade; 9. a chute; 10. clamping the column; 11. a first open slot; 12. a protection plate; 13. a handle; 14. a ventilation slot; 15. a second open slot; 16. a screw member; 17. a screw; 18. a third opening groove; 19. and a limiting plate.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-5, the present invention is a negative pressure fan with protection function, including a protection box 1, a first open slot 11 and a protection plate 12, wherein the protection box 1 is a cavity structure, an opening 2 is provided on one surface of the protection box 1, the first open slot 11 is provided on one side of the upper surface of the protection box 1, a sliding slot 9 is provided on one side of two opposite surfaces inside the protection box 1, the two sliding slots 9 are respectively communicated with two ends of the first open slot 11, a plurality of clamping columns 10 are embedded inside the two sliding slots 9, the protection plate 12 is installed between the two sliding slots 9, the two opposite surfaces of the protection plate 12 are in sliding fit with the clamping columns 10, one end of the protection plate 12 is in sliding fit with the first open slot 11, so as to facilitate the installation and disassembly of the protection plate 12, thereby facilitating the later maintenance and cleaning, one surface of the protection plate 12 is provided with a plurality of ventilation slots 14, under the condition that the normal operation of the negative pressure fan 6 is not affected, the striking fan can prevent foreign matters from entering the striking fan, the normal operation of the striking fan is guaranteed, the service life of the striking fan is prolonged, and the handle 13 is arranged on the upper surface of the protection plate 12.

Another surface of protective housing 1 is provided with second open slot 15, and a plurality of supporting sleeve 3 are installed to the inside bottom surface of protective housing 1, and supporting column 4 has been inlayed to the inside dress of supporting sleeve 3, sliding fit between 4 all sides of supporting column and the 3 internal surfaces of supporting sleeve, installs supporting spring between 4 lower surfaces of supporting column and the inside bottom surface of supporting sleeve 3, improves the support capacity of carrier plate, and surface mounting has loading board 5 on 4 upper surfaces of supporting column.

The upper surface of the bearing plate 5 is provided with a negative pressure fan 6, a plurality of screw connectors 16 are arranged on two opposite surfaces of the negative pressure fan 6, a plurality of third opening grooves 18 penetrate through two opposite surfaces of the protective box 1, an air port 7 is arranged on one surface of the negative pressure fan 6, the air port 7 is communicated with the inside of the negative pressure fan 6, and fan blades 8 are embedded in the air port 7.

The position of the third opening groove 18 is matched with the position of the screw connector 16, a screw rod 17 is screwed in the screw connector 16, one end of the screw rod 17 extends to the outside of the protective box 1 through the third opening groove 18, a limiting plate 19 is installed at one end of the screw rod 17, the diameter of the limiting plate 19 is larger than that of the third opening groove 18, the stability of the negative-pressure air fan 6 in the protective box 1 is improved, and the situation that the negative-pressure air fan shakes during working is avoided.

Example two:

referring to fig. 1-5, the present invention is a negative pressure fan with protection function, and its usage method is: on placing negative-pressure air fan 6 in loading board 5 through opening 2 that protective housing 1 set up, sliding fit and supporting spring's compression and restoration through support sleeve 3 and support column 4, improve the support capacity of loading board 5, then through guard plate 12 and protective housing 1 structure, protect negative-pressure air fan 6, under the condition that does not influence negative-pressure air fan 6 normal operating, avoid the foreign matter to get into the striking fan, guarantee its normal operating, improve its life, simultaneously through spout 9 and first open slot 11 structure, make things convenient for the installation and the dismantlement of guard plate 12, thereby make things convenient for the maintenance and the clearance in later stage, through spiro union piece 16 and screw rod 17 structure, improve negative-pressure air fan 6 at the inside stability of protective housing 1, avoid the during operation to rock.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a negative-pressure air fan with safeguard function, includes guard box (1), first open slot (11) and guard plate (12), its characterized in that: protection box (1) is the cavity structure, protection box (1) surface is provided with opening (2), first open slot (11) set up in protection box (1) upper surface one side, inside double-phase relative surface one side of protection box (1) all is provided with spout (9), two spout (9) are linked together, two respectively with between first open slot (11) both ends spout (9) inside dress has a plurality of calorie of post (10), install between two spout (9) guard plate (12), sliding fit between two relative surfaces of guard plate (12) and calorie of post (10), sliding fit between guard plate (12) one end and first open slot (11), one surface of guard plate (12) is provided with a plurality of ventilation groove (14), surface mounting has handle (13) on guard plate (12).

2. The negative-pressure air blower with the protection function according to claim 1, wherein a second open slot (15) is formed in the other surface of the protection box (1), a plurality of support sleeves (3) are installed on the bottom surface inside the protection box (1), and support columns (4) are embedded inside the support sleeves (3).

3. The negative-pressure air blower with the protection function according to claim 2, wherein a peripheral side surface of one end of the support column (4) is in sliding fit with an inner surface of the support sleeve (3), a support spring is arranged between a lower surface of the support column (4) and an inner bottom surface of the support sleeve (3), and a bearing plate (5) is arranged on the upper surface of the support column (4).

4. The negative-pressure air blower with the protection function according to claim 3, wherein the negative-pressure air blower (6) is installed on the upper surface of the bearing plate (5), a plurality of screw connectors (16) are installed on two opposite surfaces of the negative-pressure air blower (6), and a plurality of third opening grooves (18) penetrate through two opposite surfaces of the protection box (1).

5. The negative-pressure air blower with the protection function according to claim 4, characterized in that the position of the third opening groove (18) is adapted to the position of the screw connector (16), a screw rod (17) is screwed in the screw connector (16), and one end of the screw rod (17) extends to the outside of the protection box (1) through the third opening groove (18).

6. The negative-pressure air blower with the protection function according to claim 5, characterized in that a limit plate (19) is installed at one end of the screw rod (17), and the diameter of the limit plate (19) is larger than that of the third opening groove (18).

7. The negative-pressure air blower with the protection function as claimed in claim 4, wherein an air port (7) is installed on one surface of the negative-pressure air blower (6), the air port (7) is communicated with the inside of the negative-pressure air blower (6), and fan blades (8) are embedded in the air port (7).