CN213574704U - Fan noise reduction device - Google Patents
Fan noise reduction device Download PDFInfo
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- CN213574704U CN213574704U CN202021974196.1U CN202021974196U CN213574704U CN 213574704 U CN213574704 U CN 213574704U CN 202021974196 U CN202021974196 U CN 202021974196U CN 213574704 U CN213574704 U CN 213574704U
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- noise reduction
- fan
- making
- external thread
- uproar
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Abstract
The utility model provides a device of making an uproar falls in fan belongs to machining technical field, and aim at provides a device of making an uproar falls in fan, solves the complicated inconvenient, the poor and difficult problem of washing of using of structure that prior art exists. The utility model at least comprises a noise reduction cylinder body and noise reduction cotton arranged on the inner surface of the noise reduction cylinder body; the noise reduction cylinder is formed by detachably buckling two semicircular cylinders with the same structure. The utility model discloses a fan noise reduction device forms a complete body of making an uproar of falling through two semicylinders and first solid fixed ring and the solid fixed ring of second, can dismantle the connection form, can dismantle after long-time the use and wash, places the problem that the dust blockked up, in addition, the setting of the first external screw thread and the second external screw thread of making an uproar cylinder both sides of falling can select a plurality of cylinders of making an uproar of falling to connect the cooperation and use when a plurality of fan linkages use, increase the area of making an uproar of falling.
Description
Technical Field
The utility model belongs to the technical field of machining, concretely relates to device of making an uproar falls in fan.
Background
The fan is a gas compression and gas conveying machine, and the fan converts the rotating mechanical energy into gas pressure energy and kinetic energy during operation and conveys gas out. In buildings, fans are widely used for ventilation and heat exchange, and the normal operation of the fans is related to good transmission and distribution performance of a system, so that the fans are a very key part for building energy conservation. When the fan runs, due to the rotation of the motor and the disturbance of air, great noise can be generated, according to measurement and calculation, the noise generated when one fan with the diameter of 800mm runs normally can reach more than 80dB, and a plurality of fans are usually used in a linkage mode in a building, so that the noise is further increased. At present, the measures for reducing the noise of the fan have the defects of complex structure, inconvenient use, unobvious effect, undetachable cleaning and the like, and cause great pressure on environmental protection.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device of making an uproar falls in fan solves the complicated problem of using inconvenience, noise cancelling effect poor and washing difficulty of structure that prior art exists.
In order to achieve the purpose, the fan noise reduction device of the utility model at least comprises a noise reduction cylinder body and noise reduction cotton arranged on the inner surface of the noise reduction cylinder body;
the noise reduction cylinder is formed by detachably buckling two semicircular cylinders with the same structure.
The surface of the silencing cotton is of a concave-convex structure.
A first external thread is arranged at one end of the outer cylindrical surface of the noise reduction cylinder, a second external thread is further arranged at the other end of the outer cylindrical surface of the noise reduction cylinder, and an internal thread is arranged at one end, opposite to the second external thread, of the inner cylindrical surface of the noise reduction cylinder;
when one of the noise reduction cylindrical bodies is used alone, the first external thread is in threaded connection with a first fixing ring, and the second external thread is in threaded connection with a second fixing ring;
when the n noise reduction cylinders are connected end to end in sequence, a first external thread in one noise reduction cylinder at one end is in threaded connection with a first fixing ring; the second external thread of the other end of each noise reduction cylinder body is in threaded connection with a second fixing ring, and the first external thread of one of the two adjacent noise reduction cylinder bodies is matched with the internal thread of the other noise reduction cylinder body to form a thread pair.
Every cutting plane one side of semicircle body is provided with the recess, and the opposite side is provided with the bead, two when the semicircle body cooperatees, the recess of a semicircle body and the bead cooperation of another semicircle body.
The utility model has the advantages that: the utility model discloses a fan noise reduction device forms a complete body of making an uproar of falling through two semicylinders and first solid fixed ring and the solid fixed ring of second, can dismantle the connection form, can dismantle after long-time the use and wash, places the problem that the dust blockked up, in addition, the setting of the first external screw thread and the second external screw thread of making an uproar cylinder both sides of falling can select a plurality of cylinders of making an uproar of falling to connect the cooperation and use when a plurality of fan linkages use, increase the area of making an uproar of falling.
Drawings
Fig. 1 is a schematic view of an overall structure of a fan noise reduction device according to the present invention;
fig. 2 is a front view of a fan noise reduction device structure of the present invention;
fig. 3 is a sectional view of a fan noise reduction device according to the present invention;
fig. 4 is a schematic structural view of a semi-cylinder body in a fan noise reduction device according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a schematic structural view of the fan noise reduction device of the present invention when two are spliced for use;
fig. 7 is a structural sectional view of the fan noise reduction device of the present invention when two devices are used in a splicing manner;
wherein: 1. the noise reduction cylinder body 101, first external screw thread, 102, second external screw thread, 103, internal thread, 104, recess, 105, bead, 2, first fixed ring, 3, the fixed ring of second, 4, amortization cotton.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Example one
Referring to fig. 1-5, the fan noise reduction device of the present invention at least includes a noise reduction cylinder 1 and noise reduction cotton 4 disposed on the inner surface of the noise reduction cylinder 1;
the noise reduction cylinder body 1 is formed by detachably buckling two semicircular cylinder bodies with the same structure.
The surface of the silencing cotton 4 is of a concave-convex structure.
A first external thread 101 is arranged at one end of the outer cylindrical surface of the noise reduction cylinder body 1, a second external thread 102 is further arranged at the other end of the noise reduction cylinder body 1, and an internal thread 103 is arranged at the end, opposite to the second external thread 102, of the inner cylindrical surface of the noise reduction cylinder body 1;
the first external thread 101 is in threaded connection with a first fixing ring 2, and the second external thread 102 is in threaded connection with a second fixing ring 3;
the outer diameters of the first fixing ring 2 and the second fixing ring 3 are the same as the outer diameter of the noise reduction cylinder 1.
One side of the cutting surface of each semicylindrical body is provided with a groove 104, the other side of the cutting surface of each semicylindrical body is provided with a convex rib 105, and when the two semicylindrical bodies are matched, the groove 104 of one semicylindrical body is matched with the convex rib 105 of the other semicylindrical body.
Example two
Referring to fig. 6 and fig. 7, the present embodiment is different from the first embodiment in that n noise reduction cylinders 1 are selected to be connected end to end in sequence, and when n noise reduction cylinders 1 are connected end to end in sequence, a first external thread 101 in one noise reduction cylinder 1 at one end is connected with a first fixing ring 2 in a threaded manner; the second external thread 102 of the other end of each noise reduction cylinder 1 is in threaded connection with a second fixing ring 3, and the first external thread 101 of one of the two adjacent noise reduction cylinders 1 and the internal thread 103 of the other one cooperate to form a thread pair.
Claims (4)
1. A fan noise reduction device is characterized by at least comprising a noise reduction cylinder body (1) and noise reduction cotton (4) arranged on the inner surface of the noise reduction cylinder body (1);
the noise reduction cylinder (1) is formed by detachably buckling two semicircular cylinders with the same structure.
2. The fan noise reduction device according to claim 1, wherein the surface of the noise reduction cotton (4) is of a concave-convex structure.
3. A fan noise reduction device according to claim 1 or 2, wherein one end of the outer cylindrical surface of the noise reduction cylinder (1) is provided with a first external thread (101), the other end is further provided with a second external thread (102), and the end of the inner cylindrical surface of the noise reduction cylinder (1) opposite to the second external thread (102) is provided with an internal thread (103);
when one of the noise reduction cylindrical bodies (1) is used alone, the first external thread (101) is screwed with a first fixing ring (2), and the second external thread (102) is screwed with a second fixing ring (3);
when the n noise reduction cylindrical bodies (1) are connected end to end in sequence, a first external thread (101) in one noise reduction cylindrical body (1) at one end is in threaded connection with a first fixing ring (2); the second external thread (102) at the other end of each noise reduction cylinder body (1) is in threaded connection with a second fixing ring (3), and the first external thread (101) of one of the two adjacent noise reduction cylinder bodies (1) is matched with the internal thread (103) of the other one to form a thread pair.
4. A fan noise reduction device according to claim 1 or 2, wherein each of the semicylindrical bodies has a cut surface with a groove (104) on one side and a rib (105) on the other side, and when the semicylindrical bodies are fitted, the groove (104) of one semicylindrical body is fitted with the rib (105) of the other semicylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974196.1U CN213574704U (en) | 2020-09-10 | 2020-09-10 | Fan noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974196.1U CN213574704U (en) | 2020-09-10 | 2020-09-10 | Fan noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213574704U true CN213574704U (en) | 2021-06-29 |
Family
ID=76570593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021974196.1U Active CN213574704U (en) | 2020-09-10 | 2020-09-10 | Fan noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213574704U (en) |
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2020
- 2020-09-10 CN CN202021974196.1U patent/CN213574704U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 612, building 13, Chaoda entrepreneurship Park, 3355 Silicon Valley Street, high tech Zone, Changchun City, Jilin Province Patentee after: Zhongbang Ecological Environment Co.,Ltd. Address before: Room 612, building 13, Chaoda entrepreneurship Park, 3355 Silicon Valley Street, high tech Zone, Changchun City, Jilin Province Patentee before: Zhongbang Huize Garden Environment Construction Co.,Ltd. |