CN203349875U - Fan structure capable of adjusting negative pressure value of pressure measuring port - Google Patents
Fan structure capable of adjusting negative pressure value of pressure measuring port Download PDFInfo
- Publication number
- CN203349875U CN203349875U CN201290000036.4U CN201290000036U CN203349875U CN 203349875 U CN203349875 U CN 203349875U CN 201290000036 U CN201290000036 U CN 201290000036U CN 203349875 U CN203349875 U CN 203349875U
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- CN
- China
- Prior art keywords
- pressure measurement
- measurement interface
- pressure measuring
- hole
- spiral case
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- 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 - Lifetime
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a fan structure capable of adjusting a negative pressure value of a pressure measuring port. The fan structure comprises a volute and the pressure measuring port, wherein a cavity capable of holding a wind wheel is formed in the middle of the volute, a volute through hole is formed in the volute, a pressure measuring through hole is formed in the middle of the pressure measuring port, the pressure measuring port is formed in the volute, the pressure measuring through hole is communicated with the cavity, a spoiler block protrudes from the end face of the pressure measuring port, and the spoiler block is located in the cavity and can rotate circumferentially along the volute through hole along with the pressure measuring port. Due to the facts that the structure that the tail portion of a traditional pressure measuring port is flat is changed, and the spoiler block protrudes from the end face of the pressure measuring port, the spoiler block changes the direction of air flow in the pressure measuring port and influences the negative pressure output value of the pressure measuring port according to the principle that the air flow is not distributed evenly. By means of rotation of the angle of the spoiler block of the pressure measuring port, the aim of achieving different negative pressure output values is achieved, and therefore the requirement of different fans for different negative pressure output values of the pressure measuring port is met.
Description
Technical field:
The utility model relates to a kind of blower fan structure of regulating pressure measurement interface negative pressure value.
Background technology:
Blower fan pressure measurement interface is as a finding that is arranged on the volute of blower side, it is a safety feature, although its volume is little, but act on but very large, the negative pressure value of pressure measurement interface output is directly connected in air switch, and air switch is controlled the operation of whole system or is stopped, different loads requires different to the output valve of pressure measurement interface, traditional way is the position of mobile pressure measurement interface, perhaps change the pressure measurement Interface Shape, arrive the purpose of qualified pressure measurement interface output valve with this, caused like this blower fan that the pressure measurement interface of various structures is arranged, the pressure measurement interface that multiple position is perhaps arranged, increased greatly production cost, the quality aspect is unfavorable for management and control simultaneously.
Summary of the invention:
The purpose of this utility model is to provide a kind of blower fan structure of regulating pressure measurement interface negative pressure value, and it is simple in structure, applicable dissimilar blower fan, and highly versatile, reduce production costs.
The purpose of this utility model is achieved by following technical proposals.
A kind of blower fan structure of regulating pressure measurement interface negative pressure value, comprise spiral case and pressure measurement interface, offer the cavity that holds wind wheel in the middle of spiral case, the spiral case through hole that spiral case is provided with, offer the pressure measurement through hole in the middle of the pressure measurement interface, the pressure measurement interface is arranged on spiral case, and pressure measurement through hole and cavity are communicated with, the end face of pressure measurement interface protrudes the flow-disturbing piece, and the flow-disturbing piece is positioned in cavity and can circumferentially rotates along the spiral case through hole with the pressure measurement interface.
Described above is provided with sealing shroud in the pressure measurement interface outside, spiral case through hole, sealing shroud comprises body, offers mounting hole in the middle of body, on the mounting hole outside, body, is provided with draw-in groove, draw-in groove embeds on the base plate of spiral case, and the pressure measurement interface embeds in mounting hole and can circumferentially rotate along mounting hole.
Surrounding edge is protruded in the body bottom of sealing shroud described above, surrounding edge surrounds container cavity, be provided with some surrounding edge trimmings on the container cavity outside, surrounding edge, the lateral surface of pressure measurement interface protrudes installing plate, the installing plate outside is provided with some installing plate trimmings, installing plate embeds in container cavity, and installing plate trimming and surrounding edge trimming cooperatively interact.
Pressure measurement interface described above is that injection mo(u)lding or metal material are made.
Flow-disturbing piece described above is arc.
Sealing shroud described above is rubber parts.
The utility model compared with prior art, have following effect: 1) end face of the utility model pressure measurement interface protrudes the flow-disturbing piece, the flow-disturbing piece is positioned in cavity and can circumferentially rotates along the spiral case through hole with the pressure measurement interface, this is simple in structure, applicable dissimilar blower fan, highly versatile, reduce production costs, utilize air-flow principle pockety, the flow-disturbing piece has changed the air-flow trend in the pressure measurement interface, affect thus the negative pressure output valve of pressure measurement interface, reach the purpose of different negative pressure output valves by the angle of rotation pressure measurement interface flow-disturbing piece, meet thus the requirement of different blower fans to pressure measurement interface negative pressure output valve, 2) be provided with sealing shroud in the pressure measurement interface outside, spiral case through hole, sealing shroud comprises body, offer mounting hole in the middle of body, be provided with draw-in groove on the mounting hole outside, body, draw-in groove embeds on the base plate of spiral case, and the pressure measurement interface embeds in mounting hole and can circumferentially rotate along mounting hole, and the sealing cover is applicable to the spiral case blower fan that wall is thinner, guarantee that the pressure measurement interface can circumferentially rotate, and good sealing effect, 3) surrounding edge is protruded in the body of sealing shroud bottom, surrounding edge surrounds container cavity, be provided with some surrounding edge trimmings on the container cavity outside, surrounding edge, the lateral surface of pressure measurement interface protrudes installing plate, the installing plate outside is provided with some installing plate trimmings, and installing plate embeds in container cavity, and installing plate trimming and surrounding edge trimming cooperatively interact, the installing plate trimming makes flow-disturbing piece rotation fixed angle, easy for installation.
The accompanying drawing explanation:
Fig. 1 is the utility model stereographic map.
Fig. 2 is the utility model exploded view
Fig. 3 is the utility model structural representation.
Fig. 4 is the A-A phantom view of Fig. 3.
Fig. 5 is the large figure of B-B preventing local of Fig. 4.
Embodiment:
Below by specific embodiment, also by reference to the accompanying drawings the utility model is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of blower fan structure of regulating pressure measurement interface negative pressure value, comprise spiral case 1 and pressure measurement interface 2, offer the cavity 11 that holds wind wheel in the middle of spiral case 1, the spiral case through hole 12 that spiral case 1 is provided with, offer pressure measurement through hole 21 in the middle of pressure measurement interface 2, pressure measurement interface 2 is arranged on spiral case 1, pressure measurement through hole 21 and cavity 11 are communicated with, and the end face of pressure measurement interface 2 protrudes flow-disturbing piece 22, and flow-disturbing piece 22 is positioned at 11 li of cavitys and can circumferentially rotates along spiral case through hole 12 with pressure measurement interface 2; In pressure measurement interface 2 outsides, spiral case through hole 12 places are provided with sealing shroud 3, sealing shroud 3 comprises body 31, offer mounting hole 32 in the middle of body 31, be provided with draw-in groove 33 on mounting hole 32 outsides, body 31, draw-in groove 33 embeds on the base plate of spiral case 1, and pressure measurement interface 2 embeds 32 li of mounting holes and can circumferentially rotate along mounting hole 32; Surrounding edge 34 is protruded in body 31 bottoms of sealing shroud 3, surrounding edge 34 surrounds container cavity 340, be provided with some surrounding edge trimmings 341 on container cavity 340 outsides, surrounding edge 34, the lateral surface of pressure measurement interface 2 protrudes installing plate 23, installing plate 23 outsides are provided with some installing plate trimmings 230, installing plate 23 embeds 340 li of container cavities, and installing plate trimming 230 and surrounding edge trimming 341 cooperatively interact; Pressure measurement interface 2 is that injection mo(u)lding or metal material are made; Described flow-disturbing piece 22 is arcs; Sealing shroud 3 is rubber parts; This is simple in structure, applicable dissimilar blower fan, and highly versatile, reduce production costs.
The utility model is by changing traditional concordant structure of pressure measurement interface afterbody, protrude flow-disturbing piece 22 at pressure measurement interface 2 end faces, utilize air-flow principle pockety, flow-disturbing piece 22 has changed the air-flow trend in pressure measurement interface 2, affect thus the negative pressure output valve of pressure measurement interface 2, the angle of the flow-disturbing piece 22 by rotation pressure measurement interface 2 reaches the purpose of different negative pressure output valves, meet thus the requirement of different blower fans to pressure measurement interface negative pressure output valve, negative pressure output valve minimum when flow-disturbing piece 22 rotates to the most close air outlet 13 direction, than having, flow-disturbing piece negative pressure output valve is not little, flow-disturbing piece 22 rotation is to negative pressure output valve maximum during angle farthest from air outlet 13, than having, flow-disturbing piece negative pressure output valve is not large.
Claims (6)
1. a blower fan structure of regulating pressure measurement interface negative pressure value, comprise spiral case (1) and pressure measurement interface (2), offer the cavity (11) that holds wind wheel in the middle of spiral case (1), the spiral case through hole (12) that spiral case (1) is provided with, offer pressure measurement through hole (21) in the middle of pressure measurement interface (2), pressure measurement interface (2) is arranged on spiral case (1), pressure measurement through hole (21) and cavity (11) are communicated with, it is characterized in that: the end face of pressure measurement interface (2) protrudes flow-disturbing piece (22), it is inner and can along spiral case through hole (12), circumferentially rotate with pressure measurement interface (2) that flow-disturbing piece (22) is positioned at cavity (11).
2. a kind of blower fan structure of regulating pressure measurement interface negative pressure value according to claim 1, it is characterized in that: at pressure measurement interface (2) outside, spiral case through hole (12), locate to be provided with sealing shroud (3), sealing shroud (3) comprises body (31), offer mounting hole (32) in the middle of body (31), be provided with draw-in groove (33) on mounting hole (32) outside, body (31), draw-in groove (33) embeds on the base plate of spiral case (1), and pressure measurement interface (2) embedding mounting hole (32) is inner also can circumferentially rotate along mounting hole (32).
3. a kind of blower fan structure of regulating pressure measurement interface negative pressure value according to claim 2, it is characterized in that: surrounding edge (34) is protruded in body (31) bottom of sealing shroud (3), surrounding edge (34) surrounds container cavity (340), in container cavity (340) outside, surrounding edge (34) is provided with some surrounding edge trimmings (341), the lateral surface of pressure measurement interface (2) protrudes installing plate (23), installing plate (23) outside is provided with some installing plate trimmings (230), it is inner that installing plate (23) embeds container cavity (340), installing plate trimming (230) and surrounding edge trimming (341) cooperatively interact.
4. according to claim 1 or 2 or 3 described a kind of blower fan structures of regulating pressure measurement interface negative pressure value, it is characterized in that: pressure measurement interface (2) is that injection mo(u)lding or metal material are made.
5. according to claim 1 or 2 or 3 described a kind of blower fan structures of regulating pressure measurement interface negative pressure value, it is characterized in that: described flow-disturbing piece (22) is arc.
6. according to the described a kind of blower fan structure of regulating pressure measurement interface negative pressure value of claim 2 or 3, it is characterized in that: sealing shroud (3) is rubber parts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/070587 WO2013107021A1 (en) | 2012-01-19 | 2012-01-19 | Fan structure for adjusting negative pressure of pressure measuring interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349875U true CN203349875U (en) | 2013-12-18 |
Family
ID=48798506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201290000036.4U Expired - Lifetime CN203349875U (en) | 2012-01-19 | 2012-01-19 | Fan structure capable of adjusting negative pressure value of pressure measuring port |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN203349875U (en) |
| CA (1) | CA2850557C (en) |
| MX (1) | MX341539B (en) |
| WO (1) | WO2013107021A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007053A1 (en) * | 2018-07-06 | 2020-01-09 | 中山大洋电机股份有限公司 | Pressure measurement interface assembly used on volute casing and draught fan using same |
| CN114710997A (en) * | 2022-04-21 | 2022-07-08 | 黑龙江省众为农机有限公司 | Negative pressure controller for mechanical variable-frequency steering engine agricultural fan |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023530B (en) * | 2020-08-18 | 2022-08-23 | 衡阳百赛化工实业有限公司 | Secondary zinc oxide settling chamber with high settling efficiency |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8600247A (en) * | 1986-01-31 | 1987-08-17 | Atag Bv Apparatenfab | HEATING DEVICE. |
| DE8911433U1 (en) * | 1989-09-26 | 1989-11-23 | Gebhardt Ventilatoren GmbH & Co, 7112 Waldenburg | Device for determining the volume flow of a radial fan |
| DE19605380A1 (en) * | 1996-02-14 | 1997-08-21 | Bosch Gmbh Robert | Device for monitoring a heater |
| CN201892550U (en) * | 2010-08-31 | 2011-07-06 | 中国北车集团大连机车研究所有限公司 | Flowmeter for centrifugal shell-less fan |
| CN201845701U (en) * | 2010-09-21 | 2011-05-25 | 樱花卫厨（中国）股份有限公司 | Improved structure of wind pressure switch used for gas heater |
-
2012
- 2012-01-19 CA CA2850557A patent/CA2850557C/en active Active
- 2012-01-19 WO PCT/CN2012/070587 patent/WO2013107021A1/en active Application Filing
- 2012-01-19 CN CN201290000036.4U patent/CN203349875U/en not_active Expired - Lifetime
- 2012-01-19 MX MX2013013708A patent/MX341539B/en active IP Right Grant
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007053A1 (en) * | 2018-07-06 | 2020-01-09 | 中山大洋电机股份有限公司 | Pressure measurement interface assembly used on volute casing and draught fan using same |
| CN114710997A (en) * | 2022-04-21 | 2022-07-08 | 黑龙江省众为农机有限公司 | Negative pressure controller for mechanical variable-frequency steering engine agricultural fan |
| CN114710997B (en) * | 2022-04-21 | 2024-01-26 | 黑龙江省众为农机有限公司 | Mechanical variable-frequency type negative pressure controller for steering engine agricultural fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2850557A1 (en) | 2013-07-25 |
| MX341539B (en) | 2016-08-24 |
| CA2850557C (en) | 2018-11-27 |
| MX2013013708A (en) | 2014-05-27 |
| WO2013107021A1 (en) | 2013-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |