CN203191008U - Air quantity hood - Google Patents
Air quantity hood Download PDFInfo
- Publication number
- CN203191008U CN203191008U CN 201320216961 CN201320216961U CN203191008U CN 203191008 U CN203191008 U CN 203191008U CN 201320216961 CN201320216961 CN 201320216961 CN 201320216961 U CN201320216961 U CN 201320216961U CN 203191008 U CN203191008 U CN 203191008U
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- CN
- China
- Prior art keywords
- air quantity
- support bar
- pedestal
- cover according
- mouth structure
- 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 - Lifetime
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Abstract
The utility model provides an air quantity hood which comprises a hood opening structure, a base, a supporting rod and a cloth piece, wherein the hood opening structure and the base are vertically and coaxially arranged in parallel, the supporting rod is supported between the hood opening structure and the base, and the cloth piece which defines an air cylinder is arranged between the hood opening structure and the base. The hood opening structure comprises four L-shaped movable plates which are folded together to form a rectangular vent opening with an adjustable size. When the air quantity hood is not matched with an air opening to be measured in size, only the hood opening structure needs to be adjusted, no replacement is needed, and therefore cost is saved, workload is lowered, and work efficiency is improved.
Description
Technical field
The utility model relates to a kind of air quantity pick-up unit, relates in particular to a kind of air quantity cover.
Background technology
In ventilation and air conditioning system, cold (heat) wind that the air conditioner end is sent is that human body is for the main foundation of changes in temperature perception.Be example with the summer, when indoor temperature has reached design temperature and tended towards stability, if air quantity is too small then can't to satisfy comfort requirement, if air quantity crosses senior general and make the human feeling arrive strong coldblast sense, but also will run in the opposite direction with energy-conservation theory.Therefore, of crucial importance for the detection of ventilation and air conditioning system tuyere air volume.
The detecting instrument of tuyere air volume generally adopts the air quantity cover to carry out, and the air quantity cover mainly is made of air quantity cover body and pedestal.The air quantity cover body comprises cover mouth structure and air duct two parts, and air duct generally is made of the cloth sheet, is mainly used in gathering air quantity.During detection, the air quantity cover is covered tested air port fully, because the effect of air duct drainage, the wind that blows out from tested air port is collected on the even device of wind speed on the pedestal, at the even device of wind speed wind pressure sensor is housed, sensor will reflect change of wind velocity, Wind Coverage Calculation can be come out according to the size of pedestal again.Simultaneously, the air quantity cover also can with a PDA(palm PC) be connected, show by this PDA with the numerical value with its calculating, thereby can obtain the data of wind speed, wind-warm syndrome and air quantity intuitively.In addition, the testing staff can also arrange and carry out continuous reference record at interval writing time, in order to data are analyzed.
Yet present stage is being carried out tuyere air volume when detecting, and need guarantee that the cover mouth structure size of air quantity cover and the size in tested air port mate, that is, and and with the measure-alike of tested air port or be slightly larger than tested air port.Therefore, present many manufacturers are according to using some more air port sizes, produced the air quantity cover body corresponding with it, change at different detected objects for the testing staff, when changing cover body, need the cover mouth structure is pulled down from pedestal with air duct, can detect behind the cover mouth structure that is complementary with tested air port in the replacement and the air duct.
Above-mentioned steps seems simply, but can produce following two drawbacks:
(1) cost improves, and for testing agency, interchangeable air quantity cover cover body has solved cover mouth structure size and the unmatched problem of tested air port size, but needs testing agency to buy the cover body of all sizes simultaneously.So, the cost that can make testing agency buy instrument improves.
(2) on-the-spot detection need be carried the cover body of multiple size, increased workload, for the complete ventilation and air conditioning system of a cover, the size category in its terminal air port is varied, therefore, before this just requires the testing staff to carry out testing, be ready to the cover body of all sizes, so that on-the-spot can the replacing according to the size in the tested air port of difference.So, not only increased the quantity of the equipment that need carry, changed the time that cover body spends simultaneously and also can reduce work efficiency.
The utility model content
At above-mentioned the deficiencies in the prior art, the utility model provides a kind of air quantity cover that can carry out size adjustment according to the size in tested air port.
To achieve these goals, the utility model adopts following technical scheme:
A kind of air quantity cover, it comprises cover mouth structure and a pedestal of upper and lower parallel and coaxial setting, the cloth sheet that is supported on the support bar between this cover mouth structure and the pedestal and surrounds an air duct between this cover mouth structure and this pedestal, described cover mouth structure comprise four stacked together with the L shaped portable plate of the rectangular vent of formation size adjustable.
Further, on the bottom surface of described portable plate and the position of contiguous its inside edge is provided with the connecting portion of downward extension, and wherein, the connecting portion of stacked described portable plate is movably connected mutually.
Further, on the end face of described portable plate and the position of contiguous its outer ledge is provided with first crack that passes for described cloth sheet.
Preferably, the quantity of described support bar is four, and described four support bars are supported on the place, four right angles of described ventilating opening respectively.
Aforementioned a kind of air quantity cover, the outer rim of described support bar is connected with two length directions along described support bar and extends and spaced sheet material, wherein, the bottom of described sheet material is connected with the outer rim of described support bar, and the part of described sheet material except the bottom is spaced apart to form second crack that supplies described cloth sheet to pass with described support bar outer rim.
Further, described cloth sheet comprises four trapezoidal cloths, and the long limit of described cloth links to each other with described cover mouth structure, and the minor face of described cloth links to each other with described pedestal, and the dual-side of described cloth links to each other with corresponding two described support bars respectively.
Preferably, the dual-side of described cloth passes described second crack of corresponding two described support bars respectively.
Aforementioned a kind of air quantity cover, the top of described pedestal offers four embedded grooves that are respectively applied to install a described support bar.
Further, the outer rim of described support bar offers two blind holes that the position is relative in the position near its bottom.
Preferably, be provided with two stationary shaft that insert two described blind holes of described support bar respectively in the described embedded groove.
In sum, when carrying out the tuyere air volume detection, if the cover mouth structure size of air quantity cover and the size in tested air port do not match, then the mutual alignment relation of four portable plates is regulated, so that the cover mouth structure of their stacked formation and this tested air port size coupling, in addition, the position of support bar and cloth sheet also can be carried out adaptability and regulate along with the change of cover mouth structure, thereby forms the air quantity cover cover body that mates with tested air port.As seen, compared with prior art, even air quantity cover size and tested air port size do not match, the utility model only need carry out corresponding adjusting to the cover mouth structure, and need not to carry out any replacing.Therefore, not only save cost, and reduced workload, improved work efficiency.
Description of drawings
Fig. 1 is the perspective view of air quantity cover of the present utility model;
Fig. 2 is the perspective view of portable plate of the present utility model;
Fig. 2-1 is the vertical view of the portable plate of Fig. 2;
Fig. 2-2 is that the A-A of portable plate of Fig. 2-1 is to cut-open view;
Fig. 2-3 is that the B-B of portable plate of Fig. 2-1 is to cut-open view;
Fig. 3 is the vertical view of cover mouth structure of the present utility model;
Fig. 3-1 is that the A-A of cover mouth structure of Fig. 3 is to cut-open view;
Fig. 4 is the perspective view of support bar of the present utility model;
Fig. 4-1 is the vertical view of the support bar of Fig. 4;
Fig. 4-2 is that the A-A of support bar of Fig. 4 is to cut-open view;
Fig. 5 is the perspective view of cloth of the present utility model;
Fig. 6 is the vertical view of pedestal of the present utility model;
Fig. 6-1 is that the A-A of pedestal of Fig. 6 is to cut-open view.
Embodiment
Below with reference to the accompanying drawings, provide preferred embodiment of the present utility model, and be described in detail, enable to understand better function of the present utility model, characteristics.
Shown in Fig. 1 to Fig. 6-1, the utility model is transformed on the basis of existing air quantity cover, and improved concrete structure is described in detail hereinafter.
The main structural frame of air quantity cover as shown in Figure 1, it comprise a rectangular cover mouth structure 1 of upper and lower parallel and coaxial setting and an xsect for the pedestal 3 of annular, be supported on support bar 4 between this cover mouth structure 1 and the pedestal 3, covering the wind pressure sensor 5 that the cloth sheet 2 and that surrounds an air duct between mouth structure 1 and the pedestal 3 is arranged on these pedestal 3 tops, and this air quantity cover also is connected with a peripheral PDA6, respectively each parts is described below.
The cover mouth structure 1 of air quantity cover as Fig. 2 to figure 2 ?shown in 3, it comprise four stacked movably together with the L shaped portable plate 11 of the rectangular vent that forms size adjustable.In the present embodiment, on the bottom surface of the portable plate 11 and position of contiguous its inside edge is provided with the connecting portion 111 of downward extension, and offer a long and narrow hole 113 that passes for the screw rod of elasticity bolt 12 along the length direction of this connecting portion 111, when each portable plate 11 is adjusted to the position of expectation, long and narrow hole 113 on the connecting portion 111 of adjacent two portable plates 11 is overlapped, make this elasticity bolt 12 pass overlapped twice long and narrow hole 113 and locking then, adjacent two portable plates 11 can be linked together.Preferably, on the end face of the portable plate 11 and position of contiguous its outer ledge is provided with first crack 112 that can pass for the upper end of cloth sheet 2, and stacked together two portable plates 11 first crack 112 mutually butt joint form slits of extending continuously.
In the present embodiment, the air quantity cover comprises four support bars 4 that are supported on the place, right angle of four portable plates 11 respectively.As Fig. 4 to figure 4 ?shown in 2, support bar 4 is cylindrical, its outer rim is connected with two length directions along support bar 4 and extends the also sheet material 41 of the about an angle of 90 degrees in space, wherein, the bottom of sheet material 41 is connected with the bottom of support bar 4, the part that sheet material 41 makes progress from the bottom is radially spaced with the outer rim of support bar 4, to form second crack 43 that can pass for the side of cloth sheet 2 between them.In addition, also offer two blind holes 42 that the position is relative in the bottom of support bar 4, its hole depth is less than the section radius of support bar 4.
In the present embodiment, above-mentioned cloth sheet 2 is made up of four trapezoidal cloths 21 as shown in Figure 5.Wherein, first crack 112 of the respective activity plate 11 of cover mouth structure 1 is passed on the long limit of this cloth 21, the length of its minor face be about as much as pedestal 3 annular top surface interior ring circumference four/in the lump along should in the ring circumference link to each other with pedestal 3, its dual-side passes one second crack 43 of corresponding two support bars 4 respectively, thereby makes these four cloths 21 surround an air duct around four support bars 4 between cover mouth structure 1 and pedestal 3.When cover mouth structure 1 changes, will drive each cloth 21 and change with respect to the position relation of corresponding first crack 112 and second crack 43, namely the size of their air ducts of surrounding will change along with the variation of cover mouth structure 1.
Fig. 6 and Tu 6 ?1 show pedestal 3 of the present utility model, as can be seen from the figure, the xsect of pedestal 3 ringwise, namely, the center of pedestal 3 offers the cylindrical hole 33 of a longitudinal extension, end face at this cylindrical hole 33 is provided with a wind pressure sensor 5, and at the top of pedestal 3, the inwall place that is close to this cylindrical hole 33 offers four embedded grooves that equidistantly separate 31, to be used for installing a support bar 4.Wherein, also be provided with two stationary shaft 32 that are oppositely arranged along circumferential direction in each embedded groove 31, and two stationary shaft 32 are corresponding with two blind hole 42 positions of respective support bar 4 and insert in the corresponding blind hole 42 respectively, so that support bar 4 can be centered by this stationary shaft 32 radially rotation, thereby along with the change in size of cover mouth structure 1 is carried out adaptability and regulated.
Operating process of the present utility model is achieved in that when the size in the ventilating opening size in the cover mouth structure 1 and tested air port does not match, unclamp above-mentioned elasticity bolt 12 and also regulate the relative position relation of four portable plates 11 as required, until the size of the ventilating opening of stacked formation and the size coupling in tested air port, and then by this elasticity bolt 12 of locking with the stationkeeping with portable plate 11; When the size of cover mouth structure 1 changes, with drive four support bars 4 respectively along with the movement of respective activity plate 11 around stationary shaft 32 rotations, thereby the place, four right angles that makes the top of four support bars 4 keep being supported on respective activity plate 11; In addition, each cloth 21 also can change along with the movement of respective activity plate 11 with respect to the position relation of first crack 112 and second crack 43, thereby keeps forming tight air duct.So far, namely formed the air quantity cover that mates with tested air port.
This shows that compared with prior art, when air quantity cover size and tested air port size did not match, the utility model only needed carry out corresponding adjusting to the size of cover mouth structure 1, and need not to carry out any replacing.Therefore, not only save cost, and reduced workload, improved work efficiency.
Above, be preferred embodiment of the present utility model only, be not in order to limiting scope of the present utility model, above-described embodiment of the present utility model can also make a variety of changes.Be that simple, the equivalence that every claims according to the utility model application and description are done changes and modification, all fall into claim protection domain of the present utility model.
Claims (10)
1. air quantity cover, it comprises cover mouth structure and a pedestal of upper and lower parallel and coaxial setting, the cloth sheet that is supported on the support bar between this cover mouth structure and the pedestal and surrounds an air duct between this cover mouth structure and this pedestal, it is characterized in that, described cover mouth structure comprise four stacked together with the L shaped portable plate of the rectangular vent that forms size adjustable.
2. air quantity cover according to claim 1 is characterized in that, on the bottom surface of described portable plate and the position of contiguous its inside edge is provided with the connecting portion of downward extension, and wherein, the connecting portion of stacked described portable plate is movably connected mutually.
3. air quantity cover according to claim 1 and 2 is characterized in that, on the end face of described portable plate and the position of contiguous its outer ledge is provided with first crack that passes for described cloth sheet.
4. air quantity cover according to claim 1 is characterized in that, the quantity of described support bar is four, and described four support bars are supported on the place, four right angles of described ventilating opening respectively.
5. air quantity cover according to claim 4, it is characterized in that, the outer rim of described support bar is connected with two length directions along described support bar and extends and spaced sheet material, wherein, the bottom of described sheet material is connected with the outer rim of described support bar, and the part of described sheet material except the bottom is spaced apart to form second crack that supplies described cloth sheet to pass with described support bar outer rim.
6. air quantity cover according to claim 5, it is characterized in that described cloth sheet comprises four trapezoidal cloths, and the long limit of described cloth links to each other with described cover mouth structure, the minor face of described cloth links to each other with described pedestal, and the dual-side of described cloth links to each other with corresponding two described support bars respectively.
7. air quantity cover according to claim 6 is characterized in that, the dual-side of described cloth passes described second crack of corresponding two described support bars respectively.
8. air quantity cover according to claim 4 is characterized in that, the top of described pedestal offers four embedded grooves that are respectively applied to install a described support bar.
9. air quantity cover according to claim 8 is characterized in that, the outer rim of described support bar offers two blind holes that the position is relative in the position near its bottom.
10. air quantity cover according to claim 9 is characterized in that, is provided with two stationary shaft that insert two described blind holes of described support bar respectively in the described embedded groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320216961 CN203191008U (en) | 2013-04-25 | 2013-04-25 | Air quantity hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320216961 CN203191008U (en) | 2013-04-25 | 2013-04-25 | Air quantity hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191008U true CN203191008U (en) | 2013-09-11 |
Family
ID=49107861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320216961 Expired - Lifetime CN203191008U (en) | 2013-04-25 | 2013-04-25 | Air quantity hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191008U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021245A (en) * | 2015-07-16 | 2015-11-04 | 苏州华达仪器设备有限公司 | Air flow hood with adjustable air port |
| CN113203874A (en) * | 2021-03-31 | 2021-08-03 | 华能山东石岛湾核电有限公司 | Supplementary amount of wind cover of ventilation system and wind volume measuring device are piled to high temperature |
| CN114278796A (en) * | 2021-12-23 | 2022-04-05 | 长沙海赛电装科技股份有限公司 | Air pipe connecting device suitable for outlets of various centrifugal fans |
-
2013
- 2013-04-25 CN CN 201320216961 patent/CN203191008U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021245A (en) * | 2015-07-16 | 2015-11-04 | 苏州华达仪器设备有限公司 | Air flow hood with adjustable air port |
| CN113203874A (en) * | 2021-03-31 | 2021-08-03 | 华能山东石岛湾核电有限公司 | Supplementary amount of wind cover of ventilation system and wind volume measuring device are piled to high temperature |
| CN114278796A (en) * | 2021-12-23 | 2022-04-05 | 长沙海赛电装科技股份有限公司 | Air pipe connecting device suitable for outlets of various centrifugal fans |
| CN114278796B (en) * | 2021-12-23 | 2024-04-09 | 长沙海赛电装科技股份有限公司 | Air pipe connecting device suitable for outlets of various centrifugal fans |
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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: 20130911 |
|
| CX01 | Expiry of patent term |