CN210423089U - Negative pressure fan - Google Patents
Negative pressure fan Download PDFInfo
- Publication number
- CN210423089U CN210423089U CN201920676402.1U CN201920676402U CN210423089U CN 210423089 U CN210423089 U CN 210423089U CN 201920676402 U CN201920676402 U CN 201920676402U CN 210423089 U CN210423089 U CN 210423089U
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- CN
- China
- Prior art keywords
- arm
- boss
- motor
- cavity
- chamber
- 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.)
- Expired - Fee Related
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- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 description 2
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a negative-pressure air fan, include: a cover shell which is hollow and has two opposite end openings; the connecting piece is formed on the cavity wall of the hollow cavity of the cover shell; a motor disposed within the hollow cavity of the housing via a mounting arm; the fan blade is fastened on the output shaft of the motor and rotates along with the output shaft; wherein, the shaping has the boss on the fuselage of motor, can dismantle on the boss be provided with the arm seat of installation arm one-to-one, a tip fastening of installation arm is in on the arm seat, another tip in opposite directions can be dismantled and set up on the connecting piece, the boss with arm seat one-to-one sets up. The negative pressure fan has the advantages of convenience and quickness in installation.
Description
Technical Field
The utility model relates to a fan technical field especially relates to negative-pressure air fan.
Background
The negative pressure fan is a machine which utilizes the cooling principle of air convection and negative pressure ventilation, and is a machine which can improve any problem of poor ventilation by naturally sucking fresh air from a gate or a window opposite to an installation place and quickly and forcibly discharging indoor hot air out of the room. In actual life, fans are widely used in various fields. The fan usually comprises a motor, the motor is connected and supported in the fan shell through a motor support, and the motor of the conventional negative pressure fan has the defect of inconvenient installation, so that a negative pressure fan is necessary to be researched.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned technique, the utility model provides a simple to operate, swift negative-pressure air fan.
The utility model provides a technical scheme that its technical problem adopted is: a negative pressure air blower comprising: a cover shell which is hollow and has two opposite end openings; the connecting piece is formed on the cavity wall of the hollow cavity of the cover shell; a motor disposed within the hollow cavity of the housing via a mounting arm; the fan blade is fastened on the output shaft of the motor and rotates along with the output shaft; wherein, the shaping has the boss on the fuselage of motor, can dismantle on the boss be provided with the arm seat of installation arm one-to-one, a tip fastening of installation arm is in on the arm seat, another tip in opposite directions can be dismantled and set up on the connecting piece, the boss with arm seat one-to-one sets up.
Preferably, the top end face of the boss is provided with an embedded hole for embedding the first nut, and the arm seat is detachably arranged on the boss through the first bolt.
Preferably, the bosses are distributed on the side wall of the machine body of the motor in a circular array mode, the side wall of the machine body is cylindrical, and the bosses are arranged along the direction of a generatrix of the cylindrical surface.
Preferably, the hollow cavity of the housing comprises a first cavity and a second cavity which are communicated, wherein the first cavity is a cylindrical cavity, the fan blade is located in the first cavity, and the connecting piece is located in the second cavity.
Preferably, a protective net is fastened to one end of the housing, wherein the protective net is located at the cavity of the first chamber.
Preferably, a covered edge is formed outwards on the edge of the other end of the cover shell, wherein the covered edge is arranged around the cavity of the second cavity.
Preferably, the connecting piece is a pair of bending plates which are symmetrically arranged, each bending plate comprises a first rib plate which is formed on the cavity wall of the hollow cavity of the housing and is parallel to the mounting arm, and a second rib plate which is fixedly connected with the first rib plate and has an obtuse bending angle with the first rib plate, wherein the second rib plate is fixedly arranged on the cavity wall of the hollow cavity of the housing.
Preferably, the other end of the mounting arm is detachably arranged on the first rib plate through a second bolt, wherein a through hole for the second bolt to penetrate through is formed in the first rib plate.
Preferably, the mounting arm is a rectangular tube.
Preferably, the arm seat comprises a base plate detachably arranged on the boss, and a base block fixedly arranged on the top end face of the base plate, wherein a groove for inserting the end part of the mounting arm is formed in the top end face of the base block, and the end part of the mounting arm is in interference connection with the groove.
Compared with the prior art, the utility model, its beneficial effect is: the utility model provides a negative pressure fan, its motor is provided with the arm seat, is provided with the connecting piece on the chamber wall of cavity in the housing, can realize the installation of motor through installation arm connection arm seat and connecting piece, has the advantage that simple to operate, swift; the boss that is used for connecting the arm seat is formed on the motor, the first nut is pre-buried on the boss, and during installation, the arm seat only needs to be fastened on the boss through the first bolt, so that the motor arm seat mounting structure has the advantages of being convenient to install and fast.
Drawings
Fig. 1 is a schematic structural view of a first viewing angle of the negative pressure air blower according to the present invention;
fig. 2 is a schematic structural view of a second viewing angle of the negative pressure fan according to the present invention;
fig. 3 is a schematic structural view of the negative pressure fan according to the present invention;
fig. 4 is an exploded schematic view of the negative pressure fan of the present invention;
FIG. 5 is an enlarged schematic view of region A in FIG. 4;
fig. 6 is a schematic view of the position relationship between the housing and the connecting member of the present invention;
fig. 7 is a schematic sectional structure view of the housing of the present invention;
fig. 8 is a schematic structural view of the arm base of the present invention.
In the figure: 10. a housing; 11. a first chamber; 12. a second chamber; 20. a connecting member; 21. a first rib plate; 211. a through hole; 22. a second rib plate; 30. mounting an arm; 40. a motor; 41. a boss; 42. pre-burying a hole; 50. a fan blade; 60. an arm base; 61. a substrate; 62. a base block; 621. a groove; 70. a protective net; 80. and (6) edge covering.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1 to 8, the utility model provides a negative pressure fan, include: a housing 10 which is hollow and has two opposite ends opened; a connector 20 formed on a wall of the hollow cavity of the housing 10; a motor 40 disposed within the hollow cavity of the housing 10 by a mounting arm 30; the fan blade 50 is fastened on the output shaft of the motor 40 and rotates along with the output shaft; wherein, the shaping has boss 41 on the fuselage of motor 40, can dismantle on the boss 41 be provided with the arm seat 60 of installation arm 30 one-to-one, an end fastening of installation arm 30 is in on the arm seat 60, another tip in opposite directions can dismantle the setting and be in on the connecting piece 20, boss 41 with arm seat 60 one-to-one sets up.
As an embodiment of the present disclosure, as shown in fig. 4 and 5, a pre-embedded hole 42 for pre-embedding a first nut (not shown) is formed on a top end surface of the boss 41, and the arm base 60 is detachably disposed on the boss 41 through a first bolt.
As an embodiment of this solution, as shown in fig. 4, the bosses 41 are distributed on a side wall of the body of the motor 40 in a circular array, the side wall of the body is cylindrical, and the bosses 41 are arranged along a generatrix direction of the cylindrical surface.
As an embodiment of the present disclosure, as shown in fig. 7, the hollow cavity of the housing 10 includes a first cavity 11 and a second cavity 12 that are communicated with each other, where the first cavity 11 is a cylindrical cavity, the fan blade 50 is located in the first cavity 11, and the connecting member 20 is located in the second cavity 12.
As an embodiment of the present disclosure, as shown in fig. 3 and 4, the number of the connecting members 20, the mounting arms 30, and the arm seats 60 is set to 4, the connecting members 20 are disposed at equal intervals, the mounting arms 30 are disposed at equal intervals, the arm seats 60 are disposed at equal intervals, and the connecting members 20 are distributed at four corners of the second chamber 12.
As an embodiment of the present invention, as shown in fig. 1 and 7, a protective net 70 is fastened to one end of the housing 10, wherein the protective net 70 is located at the mouth of the first chamber 11.
As an embodiment of the present disclosure, as shown in fig. 1, a rim 80 is formed on an edge of the other end of the housing 10, wherein the rim 80 is surrounded at the cavity of the second chamber 12.
As an embodiment of the present disclosure, as shown in fig. 3 and 6, the connecting member 20 is a pair of bending plates symmetrically disposed, and each bending plate includes a first rib plate 21 formed on a cavity wall of a hollow cavity of the housing 10 and parallel to the mounting arm 30, and a second rib plate 22 fixedly connected to the first rib plate 21 and having an obtuse bending angle with the first rib plate 21, where the second rib plate 22 is fixedly disposed on the cavity wall of the hollow cavity of the housing 10.
As an embodiment of the present disclosure, as shown in fig. 6, the other end of the mounting arm 30 is detachably disposed on the first rib 21 through a second bolt, wherein a through hole 211 through which the second bolt passes is disposed on the first rib 21.
As an embodiment of the present solution, as shown in fig. 4, the mounting arm 30 is a rectangular tube.
As an embodiment of the present invention, as shown in fig. 8, the arm seat 60 includes a base plate 61 detachably disposed on the boss 41, and a base block 62 fixedly disposed on a top end surface of the base plate 61, wherein a groove 621 for inserting an end of the mounting arm 30 is formed on the top end surface of the base block 62, and the end of the mounting arm 30 is in interference connection with the groove 621.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (6)
1. A negative pressure air blower characterized by comprising:
a housing (10) which is hollow and has two opposite ends opened;
a connecting piece (20) formed on the cavity wall of the hollow cavity of the cover shell (10);
a motor (40) disposed within the hollow cavity of the housing (10) by a mounting arm (30); and
the fan blade (50) is fastened on an output shaft of the motor (40) and rotates along with the output shaft;
the motor comprises a motor body (40), a boss (41) is formed on the motor body (40), arm seats (60) which are in one-to-one correspondence with the mounting arms (30) are detachably arranged on the boss (41), one end part of each mounting arm (30) is fastened on the arm seat (60), the other opposite end part of each mounting arm is detachably arranged on the connecting piece (20), and the boss (41) and the arm seats (60) are arranged in one-to-one correspondence;
a pre-embedding hole (42) for embedding a first nut is formed in the top end face of the boss (41), and the arm base (60) is detachably arranged on the boss (41) through a first bolt; the bosses (41) are distributed on the side wall of the machine body of the motor (40) in a circular array mode, the side wall of the machine body is cylindrical, and the bosses (41) are arranged along the direction of a generatrix of the cylindrical surface;
the connecting piece (20) is a pair of bending plates which are symmetrically arranged, each bending plate comprises a first rib plate (21) which is formed on the cavity wall of the hollow cavity of the housing (10) and is parallel to the mounting arm (30), and a second rib plate (22) which is fixedly connected with the first rib plate (21) and has an obtuse bending angle with the first rib plate (21), wherein the second rib plate (22) is fixedly arranged on the cavity wall of the hollow cavity of the housing (10);
arm seat (60) include one can dismantle the setting and be in base plate (61), the fixed setting on boss (41) are in base block (62) on the base plate (61) top terminal surface, wherein, the shaping has one on the top terminal surface of base block (62) and is used for inserting establish recess (621) of installation arm (30) tip, installation arm (30) tip with interference connection between recess (621).
2. The negative-pressure air blower according to claim 1, wherein the hollow cavity of the casing (10) comprises a first chamber (11) and a second chamber (12) which are communicated with each other, wherein the first chamber (11) is a cylindrical cavity, the fan blade (50) is located in the first chamber (11), and the connecting member (20) is located in the second chamber (12).
3. The negative-pressure air blower according to claim 2, characterized in that a protective net (70) is fastened to one end of the casing (10), wherein the protective net (70) is located at the mouth of the first chamber (11).
4. The negative-pressure air blower according to claim 2, characterized in that a rim (80) is formed outwardly on the edge of the other end of the casing (10), wherein the rim (80) surrounds the opening of the second chamber (12).
5. The negative pressure fan according to claim 1, wherein the other end of the mounting arm (30) is detachably disposed on the first rib plate (21) through a second bolt, and a through hole (211) for the second bolt to pass through is disposed on the first rib plate (21).
6. The negative pressure fan according to claim 1, wherein the mounting arm (30) is a rectangular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920676402.1U CN210423089U (en) | 2019-05-13 | 2019-05-13 | Negative pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920676402.1U CN210423089U (en) | 2019-05-13 | 2019-05-13 | Negative pressure fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423089U true CN210423089U (en) | 2020-04-28 |
Family
ID=70371355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920676402.1U Expired - Fee Related CN210423089U (en) | 2019-05-13 | 2019-05-13 | Negative pressure fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423089U (en) |
-
2019
- 2019-05-13 CN CN201920676402.1U patent/CN210423089U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |