CN213928872U - Back plate capable of being mounted bidirectionally - Google Patents
Back plate capable of being mounted bidirectionally Download PDFInfo
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- CN213928872U CN213928872U CN202022722886.4U CN202022722886U CN213928872U CN 213928872 U CN213928872 U CN 213928872U CN 202022722886 U CN202022722886 U CN 202022722886U CN 213928872 U CN213928872 U CN 213928872U
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- mounting hole
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Abstract
The utility model discloses a back plate capable of being mounted in two directions, which comprises a main body, wherein the main body is provided with a first side surface and a second side surface which are back to each other; the main body is provided with a mounting hole group for mounting the blade, the mounting hole group comprises a plurality of first mounting holes and a plurality of second mounting holes, the plurality of first mounting holes are annularly and uniformly distributed around the periphery of the through hole at intervals, and the plurality of second mounting holes are annularly and uniformly distributed on the periphery of the plurality of first mounting holes at intervals; each first mounting hole and each second mounting hole penetrate through the first side face and the second side face; each first mounting hole and the corresponding second mounting hole form a positioning part which inclines outwards relative to the center of the main body; borrow this, it has realized two-way installation, can be applicable to different blade and revolve to the installation demand, has improved the flexibility of field installation, possesses the commonality, need not to distinguish the direction and designs the back dish, has reduced the design volume and has reduced the inventory.
Description
Technical Field
The utility model relates to a back plate field technique especially indicates a back plate that can two-wayly install.
Background
A fan, especially a dust removal fan, is a device for improving air quality and air convection. The types of fans are various, and they are classified into: centrifugal, axial, diagonal (mixed) and cross flow, wherein the centrifugal fan is a fan in which airflow enters an impeller of the fan in the axial direction and then flows mainly in the radial direction. Current centrifugal fan includes fan wheel usually, fan wheel includes the front bezel, the back plate, reel and blade, because centrifugal fan needs different soon to, make fan wheel's blade also need design different soon to, current centrifugal fan sets for different soon to the mounting hole and realizes the different soon to the installation of blade through the soon to the demand according to the difference to the back plate, need different back plates to the installation of different blade soon promptly, lead to the back plate not to possess the commonality, can't realize two-way installation, the field installation flexibility is poor, and the design volume and the preparation volume of back plate are great.
Therefore, a new technology needs to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a back plate that can two-way installation, and it has realized two-way installation, can be applicable to different blade and revolve to the installation demand, has improved the flexibility of field installation, possesses the commonality, need not to distinguish the direction and designs the back plate, has reduced the design volume and has reduced the stock.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a back plate capable of being mounted bidirectionally comprises a main body, a first side surface and a second side surface, wherein the main body is provided with a first side surface and a second side surface which are opposite to each other; the main body is provided with a mounting hole group for mounting the blade, the mounting hole group comprises a plurality of first mounting holes and a plurality of second mounting holes, the plurality of first mounting holes are annularly and uniformly distributed around the periphery of the through hole at intervals, and the plurality of second mounting holes are annularly and uniformly distributed on the periphery of the plurality of first mounting holes at intervals; each first mounting hole and each second mounting hole penetrate through the first side face and the second side face; each first mounting hole and the corresponding second mounting hole form a positioning part which inclines outwards relative to the center of the main body; the blade can be selectively positioned on the corresponding positioning part from the first side surface or the second side surface.
Preferably, the main body is of a circular structure, and the thickness of the main body is 10 mm.
As a preferred scheme, a plurality of positioning holes are formed in the main body on the periphery of the through hole, the positioning holes are annularly and uniformly arranged around the through hole at intervals, and the first mounting holes are arranged on the periphery of the positioning holes.
As a preferable scheme, the positioning hole is a circular through hole, and the positioning hole penetrates through the first side surface and the second side surface.
Preferably, the first mounting hole and the second mounting hole are both rectangular through holes, and the rectangular through holes are obliquely arranged outwards relative to the center of the main body.
Preferably, 10 first mounting holes and 10 second mounting holes are provided.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely speaking, according to the technical proposal, the utility model is characterized in that the main body is provided with the first mounting holes and the second mounting holes, the second mounting holes are arranged at the periphery of the first mounting holes at uniform intervals in an annular shape, each first mounting hole and each second mounting hole are communicated with the first side surface and the second side surface, each first mounting hole and the corresponding second mounting hole form a positioning part which inclines outwards relative to the center of the main body, thus leading the positioning part to incline clockwise outwards when viewed from the first side surface and to incline anticlockwise when viewed from the second side surface, thus leading the blade to incline clockwise when positioned on the positioning part from the first side surface and leading the blade to incline anticlockwise when positioned on the positioning part from the second side surface, thus leading the whole blade to realize different rotation directions through the installation of different side surfaces of the rear disc, the bidirectional installation is realized, the device can meet the requirements of different blade rotation direction installation, the flexibility of field installation is improved, the universality is realized, a back plate is not required to be designed according to different directions, the design amount is reduced, and the inventory is reduced.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
fig. 2 is a rear view of an embodiment of the present invention;
fig. 3 is a first application view of an embodiment of the present invention;
fig. 4 is a second application view of an embodiment of the present invention.
The attached drawings indicate the following:
10. main body 11, first side
12. Second side surface 13, through-hole
14. First mounting hole 15 and second mounting hole
16. Positioning part 17, positioning hole
20. A blade.
Detailed Description
Fig. 1 to 4 are schematic views showing specific structures of embodiments of the present invention.
A two-way mountable back plate comprises a main body 10, the main body 10 has a first side surface 11 and a second side surface 12 which are opposite to each other, a through hole 13 is arranged at the center of the main body 10, and the through hole 13 penetrates through the first side surface 11 and the second side surface 12; the main body 10 is provided with a mounting hole group for mounting the blade, the mounting hole group comprises a plurality of first mounting holes 14 and a plurality of second mounting holes 15, the plurality of first mounting holes 14 are annularly and uniformly arranged around the periphery of the through hole 13 at intervals, and the plurality of second mounting holes 15 are annularly and uniformly arranged on the periphery of the plurality of first mounting holes 14 at intervals; each of the first mounting holes 14 and the second mounting holes 15 penetrates through the first side surface 11 and the second side surface 12; each first mounting hole 14 and the corresponding second mounting hole 15 both form a positioning portion 16 inclined outward with respect to the center of the main body 10; the positioning portion 16 is inclined clockwise and outward (as shown in fig. 1) when viewed from the first side surface 11, and is inclined counterclockwise and outward (as shown in fig. 2) when viewed from the second side surface 12; the blade 20 can be selectively positioned on the corresponding positioning portion 16 from the first side surface 11 or the second side surface 12; like this, when making blade 20 be located location portion 16 from first side 11, blade 20 is clockwise slope form (as shown in fig. 3), when blade 20 is located location portion 16 from second side 12, blade 20 is anticlockwise slope form (as shown in fig. 4), thereby make the whole installation that can pass through the different sides of back plate realize different handedness, make it can be applicable to different blade handedness installation demands, the flexibility of field installation has been improved, possess the commonality, need not to distinguish the direction and design the back plate, the design volume has been reduced and the stock has been reduced.
Preferably, in this embodiment, the main body 10 has a circular structure, and the thickness of the main body 10 is 10mm, but the thickness of the main body 10 is not limited to the above values, and may be other values, and only needs to be set according to actual production requirements, which is not described herein again.
A plurality of positioning holes 17 are formed in the periphery of the through hole 13 on the main body 10, the positioning holes 17 are annularly and uniformly arranged around the through hole 13 at intervals, and the first mounting holes 14 are arranged on the periphery of the positioning holes 17; the positioning hole 17 is a circular through hole, and the positioning hole 17 penetrates through the first side surface 11 and the second side surface 12. Thus, through the arrangement of the positioning hole 17, the positioning shaft disc is stably fixed, so that the positioning shaft disc can be stably connected with the shaft disc.
Preferably, in this embodiment, the first mounting hole 14 and the second mounting hole 15 are both rectangular through holes, and the rectangular through holes are obliquely arranged outwards relative to the center of the main body 10. Here, the rectangle through-hole that the slope set up more is favorable to the slope installation of blade, and, preferably first mounting hole 14, second mounting hole 15's inclination differs, and like this, enable the blade and possess certain radian when the slope.
In addition, in this embodiment, the first mounting hole 14 and the second mounting hole 15 are both provided with 10, and thus, 10 blades 20 can be mounted, and certainly, the first mounting hole 14 and the second mounting hole 15 are not limited to the above number, and may be in other numbers, and only need to be set according to actual production requirements, which is not described herein again.
To sum up, the design of the utility model is characterized in that the main body is provided with the first mounting holes and the second mounting holes, the second mounting holes are arranged on the periphery of the first mounting holes at uniform intervals, each first mounting hole and each second mounting hole run through the first side surface and the second side surface, and each first mounting hole and the corresponding second mounting hole form a positioning part which inclines outwards relative to the center of the main body, so that the positioning part inclines outwards clockwise when viewed from the first side surface and inclines outwards anticlockwise when viewed from the second side surface, therefore, when the blade is positioned on the positioning part from the first side surface, the blade is inclined clockwise, and when the blade is positioned on the positioning part from the second side surface, the blade is inclined anticlockwise, thereby the whole blade can realize different rotation directions through the installation of different side surfaces of the back plate, and the bidirectional installation is realized, the blade rotating direction mounting device can be suitable for different blade rotating direction mounting requirements, improves the flexibility of field mounting, has universality, does not need to distinguish directions to design a rear disc, reduces the design amount and reduces the inventory.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. A kind of back plate that can be mounted bidirectionally, characterized by: the device comprises a main body, a first side surface and a second side surface, wherein the first side surface and the second side surface are opposite to each other; the main body is provided with a mounting hole group for mounting the blade, the mounting hole group comprises a plurality of first mounting holes and a plurality of second mounting holes, the plurality of first mounting holes are annularly and uniformly distributed around the periphery of the through hole at intervals, and the plurality of second mounting holes are annularly and uniformly distributed on the periphery of the plurality of first mounting holes at intervals; each first mounting hole and each second mounting hole penetrate through the first side face and the second side face; each first mounting hole and the corresponding second mounting hole form a positioning part which inclines outwards relative to the center of the main body; the blade can be selectively positioned on the corresponding positioning part from the first side surface or the second side surface.
2. The bi-directionally mountable back plate of claim 1, wherein: the main part is circular structure, the thickness of main part is 10 mm.
3. The bi-directionally mountable back plate of claim 1, wherein: the periphery of the through hole is provided with a plurality of positioning holes on the main body, the positioning holes are annularly and uniformly arranged around the through hole at intervals, and the first mounting holes are arranged on the periphery of the positioning holes.
4. A bi-directionally mountable back plate as claimed in claim 3, wherein: the positioning hole is a circular through hole and penetrates through the first side face and the second side face.
5. The bi-directionally mountable back plate of claim 1, wherein: first mounting hole, second mounting hole are the rectangle through-hole, the center of the relative main part of rectangle through-hole outwards inclines to arrange.
6. The bi-directionally mountable back plate of claim 1, wherein: the first mounting hole and the second mounting hole are respectively provided with 10 mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722886.4U CN213928872U (en) | 2020-11-23 | 2020-11-23 | Back plate capable of being mounted bidirectionally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722886.4U CN213928872U (en) | 2020-11-23 | 2020-11-23 | Back plate capable of being mounted bidirectionally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213928872U true CN213928872U (en) | 2021-08-10 |
Family
ID=77171499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022722886.4U Active CN213928872U (en) | 2020-11-23 | 2020-11-23 | Back plate capable of being mounted bidirectionally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213928872U (en) |
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2020
- 2020-11-23 CN CN202022722886.4U patent/CN213928872U/en active Active
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