CN117432659A - Axial fan convenient to detach of protective screening - Google Patents
Axial fan convenient to detach of protective screening Download PDFInfo
- Publication number
- CN117432659A CN117432659A CN202311580233.9A CN202311580233A CN117432659A CN 117432659 A CN117432659 A CN 117432659A CN 202311580233 A CN202311580233 A CN 202311580233A CN 117432659 A CN117432659 A CN 117432659A
- Authority
- CN
- China
- Prior art keywords
- fixed
- protective screen
- annular block
- screen plate
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 43
- 238000012216 screening Methods 0.000 title description 2
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 16
- 238000005452 bending Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial flow fan with a protective screen convenient to detach, which comprises a fan shell, wherein a motor frame is fixed on the inner side wall of the bottom of the fan shell, a driving motor is fixed on the motor frame, an impeller is fixed on an output shaft of the driving motor, and a radial extension edge is formed on the outer side wall of one end of the fan shell, which is positioned at the impeller; the outer end face of the radial extension edge is fixedly provided with an annular block, the top surface of the annular block is provided with an upper slot which extends downwards, the upper slot is communicated with an inner annular slot formed in the inner side wall of the annular block, the upper slot is inserted with a protective screen plate, and the lower part of the protective screen plate and the edge part of the side part of the protective screen plate are inserted into the corresponding inner annular slot. According to the invention, the protective screen plate is inserted into the annular block arranged at one end of the impeller of the fan shell in an inserting manner, and when the protective screen plate is required to be cleaned or maintained, the protective screen plate is only required to be pulled out upwards, so that the assembly and disassembly are convenient, the effect is good, and the efficiency is high.
Description
Technical Field
The invention relates to the technical field of ventilator equipment, in particular to an axial flow fan with a protective net convenient to detach.
Background
In order to improve the safety and normal operation of the existing axial flow fan, a protective screen is generally installed on the end face of a shell at the impeller end, the existing mode is to fix the protective screen on the end face of the shell through bolts, the disassembly is troublesome, the protective screen can be disassembled only by disassembling the connected bolts, and the cleaning and the maintenance are inconvenient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an axial flow fan with a protective screen convenient to detach, the protective screen is inserted into an annular block arranged at one end of an impeller of a fan shell in an inserting mode, and when the protective screen is required to be cleaned or maintained, the protective screen is only required to be pulled out upwards, so that the axial flow fan is convenient to assemble and disassemble, good in effect and high in efficiency.
The scheme for solving the technical problems is as follows:
the axial flow fan comprises a fan shell, wherein a motor frame is fixed on the inner side wall of the bottom of the fan shell, a driving motor is fixed on the motor frame, an impeller is fixed on an output shaft of the driving motor, and a radial extension edge is formed on the outer side wall of one end of the fan shell, which is positioned at the impeller;
an annular block is fixed on the outer end face of the radial extension edge, an upper slot extending downwards is formed on the top face of the annular block, the upper slot is communicated with an inner annular slot formed on the inner side wall of the annular block, a protective screen plate is inserted into the upper slot, and the lower part of the protective screen plate and the edge part of the side part are inserted into the corresponding inner annular slot;
the protection screen plate covers the middle ventilation through groove of the annular block.
The outer end surface of the annular block is provided with a plurality of connecting screw through holes, and the connecting screw through holes correspond to positioning holes formed at the edge of the protective screen plate;
the connecting screw through holes are in screw connection with positioning ball plungers, and steel balls of the positioning ball plungers are nested in the corresponding positioning holes.
A plurality of fixing blocks are fixed on the outer end face of the annular block, a central through hole is formed in the middle of each fixing block, and the outer end of the positioning ball plunger is inserted into the corresponding central through hole.
The middle part shaping in the bottom surface of interior annular groove has the reference column, and the reference column plug bush is in the jack that the bottom surface middle part shaping of protection otter board had.
An elastic protective layer is fixed on the inner side wall of the jack, and the elastic protective layer is pressed against the outer side wall of the positioning column.
The fixed block is fixedly connected to the outer end face of the annular block through bolts.
Lower support legs are fixed at the front end and the rear end of the left side and the right side of the bottom of the fan shell;
a transverse connecting bending block is fixed between the two lower supporting legs corresponding to the front and the rear;
a plurality of kidney-shaped connecting through holes are formed in the bottom plate of the transverse connecting bending block.
The top of the protection screen plate is fixed with a vertical connecting stud, the bottom of the grabbing rod is connected to the vertical connecting stud in a threaded mode, and the top of the grabbing rod extends out of the top surface of the annular block and is provided with a grabbing portion in a forming mode.
The invention has the outstanding effects that: compared with the prior art, the protective screen plate is inserted into the annular block arranged at one end of the impeller of the fan shell in an inserting mode, and when the protective screen plate is required to be cleaned or maintained, the protective screen plate is only required to be pulled out upwards, so that the device is convenient to assemble and disassemble, good in effect and high in efficiency.
Drawings
FIG. 1 is a partial cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged partial view of another portion of FIG. 1;
FIG. 4 is a schematic view of a partial structure at a protective screen of the present invention;
fig. 5 is a schematic view of the angle changing structure of the present invention.
Detailed Description
1-5, an axial flow fan with a protective screen convenient to detach comprises a fan shell 10, wherein a motor frame 11 is fixed on the inner side wall of the bottom of the fan shell 10, a driving motor 12 is fixed on the motor frame 12, an impeller 13 is fixed on an output shaft of the driving motor 12, and a radial extending edge 14 is formed on the outer side wall of one end of the fan shell 10 at the impeller 13;
an annular block 20 is fixed on the outer end surface of the radial extension edge 14, an upper slot 21 extending downwards is formed on the top surface of the annular block 20, the upper slot 21 is communicated with an inner annular slot 22 formed on the inner side wall of the annular block 20, a protective screen 30 is inserted in the upper slot 21, and the lower part and the side part of the protective screen 30 are inserted in the corresponding inner annular slot 22;
the protective screen 30 covers the central ventilation through-slot of the annular block 20.
Further, a plurality of connecting screw through holes 23 are formed on the outer end surface of the annular block 20, and the connecting screw through holes 23 correspond to the positioning holes 31 formed at the edge of the protective screen 30;
the connecting screw through hole 23 is screwed with a positioning ball plunger 24, and a steel ball of the positioning ball plunger 24 is nested in a corresponding positioning hole 31.
Further, a plurality of fixing blocks 40 are fixed on the outer end surface of the annular block 20, a central through hole 41 is formed in the middle of the fixing block 40, and the outer end of the positioning ball plunger 24 is inserted into the corresponding central through hole 41.
Further, a positioning column 1 is formed in the middle of the bottom surface of the inner annular groove 22, and the positioning column 1 is inserted into an insertion hole 32 formed in the middle of the bottom surface of the protective screen 30.
Further, an elastic protection layer 33 is fixed on the inner side wall of the jack 32, and the elastic protection layer 33 is pressed against the outer side wall of the positioning column 1.
Further, the fixing block 40 is fixedly connected to the outer end surface of the annular block 20 by bolts.
Further, the front end and the rear end of the left and right sides of the bottom of the fan housing 10 are fixed with lower legs 15;
a transverse connecting bending block 16 is fixed between the two lower support legs 15 corresponding to the front and rear sides;
a plurality of kidney-shaped connecting through holes 161 are formed in the bottom plate of the transverse connecting bending block 16.
Further, the top end of the protective screen 30 is fixed with a vertical connection stud 34, the bottom of the grabbing rod 35 is screwed on the vertical connection stud 34, and the top end of the grabbing rod 35 extends out of the top surface of the annular block 20 and is formed with a grabbing portion 36.
In this embodiment, the protection screen 30 is inserted into the upper slot 21, the lower part and the side part of the protection screen 30 are inserted into the corresponding inner ring slot 22, and the steel balls of the positioning ball plunger 24 are nested in the corresponding positioning holes 31, so that the protection screen 30 can be positioned and fixed for use, and when the protection screen 30 needs to be disassembled, only the protection screen 30 needs to be processed to be pulled out with force upwards, which is very convenient.
The device is convenient to assemble and disassemble and convenient to clean or repair and maintain.
Finally, the above embodiments are only for illustrating the invention, not for limiting it, and various changes and modifications can be made by one skilled in the relevant art without departing from the spirit and scope of the invention, so that all equivalent technical solutions are also within the scope of the invention, which is defined by the claims.
Claims (8)
1. The utility model provides a convenient axial fan is dismantled to protection network, includes fan case (10), its characterized in that: a motor frame (11) is fixed on the inner side wall of the bottom of the fan shell (10), a driving motor (12) is fixed on the motor frame (12), an impeller (13) is fixed on an output shaft of the driving motor (12), and a radial extension edge (14) is formed on the outer side wall of one end of the fan shell (10) at the impeller (13);
an annular block (20) is fixed on the outer end surface of the radial extension edge (14), an upper slot (21) extending downwards is formed on the top surface of the annular block (20), the upper slot (21) is communicated with an inner annular groove (22) formed on the inner side wall of the annular block (20), a protective screen (30) is inserted into the upper slot (21), and the lower part of the protective screen (30) and the side part of the side part are inserted into the corresponding inner annular groove (22);
the protective screen plate (30) covers the middle ventilation through groove of the annular block (20).
2. The axial flow fan with convenient disassembly of the protective net according to claim 1, wherein: a plurality of connecting screw through holes (23) are formed on the outer end surface of the annular block (20), and the connecting screw through holes (23) correspond to positioning holes (31) formed at the edge of the protective screen plate (30);
the connecting screw through hole (23) is in screw connection with a positioning ball plunger (24), and a steel ball of the positioning ball plunger (24) is nested in a corresponding positioning hole (31).
3. The axial flow fan with convenient disassembly of the protective net according to claim 1, wherein: a plurality of fixing blocks (40) are fixed on the outer end face of the annular block (20), a central through hole (41) is formed in the middle of each fixing block (40), and the outer end of each positioning ball plunger (24) is inserted into the corresponding central through hole (41).
4. The axial flow fan with convenient disassembly of the protective net according to claim 1, wherein: the middle part of the bottom surface of the inner annular groove (22) is provided with a positioning column (1), and the positioning column (1) is inserted into an inserting hole (32) formed in the middle part of the bottom surface of the protective screen plate (30).
5. The axial flow fan with convenient disassembly of the protective net according to claim 4, wherein: an elastic protective layer (33) is fixed on the inner side wall of the jack (32), and the elastic protective layer (33) is pressed against the outer side wall of the positioning column (1).
6. The axial flow fan with convenient disassembly of the protective net according to claim 3, wherein: the fixed block (40) is fixedly connected to the outer end face of the annular block (20) through bolts.
7. The axial flow fan with convenient disassembly of the protective net according to claim 1, wherein: lower support legs (15) are fixed at the front end and the rear end of the left side and the right side of the bottom of the fan shell (10);
a transverse connecting bending block (16) is fixed between the two lower supporting legs (15) corresponding to the front and the rear;
a plurality of kidney-shaped connecting through holes (161) are formed in the bottom plate of the transverse connecting bending block (16).
8. The axial flow fan with convenient disassembly of the protective net according to claim 1, wherein: the top of the protection screen plate (30) is fixed with a vertical connecting stud (34), the bottom of the grabbing rod (35) is connected to the vertical connecting stud (34) in a threaded mode, and the top of the grabbing rod (35) extends out of the top surface of the annular block (20) and is provided with a grabbing portion (36) in a forming mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311580233.9A CN117432659A (en) | 2023-11-24 | 2023-11-24 | Axial fan convenient to detach of protective screening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311580233.9A CN117432659A (en) | 2023-11-24 | 2023-11-24 | Axial fan convenient to detach of protective screening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117432659A true CN117432659A (en) | 2024-01-23 |
Family
ID=89558279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311580233.9A Pending CN117432659A (en) | 2023-11-24 | 2023-11-24 | Axial fan convenient to detach of protective screening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117432659A (en) |
-
2023
- 2023-11-24 CN CN202311580233.9A patent/CN117432659A/en active Pending
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |