CN110470363A - A kind of air flow meter calibration standard test specimen of building element testing machine - Google Patents
A kind of air flow meter calibration standard test specimen of building element testing machine Download PDFInfo
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- CN110470363A CN110470363A CN201910706985.2A CN201910706985A CN110470363A CN 110470363 A CN110470363 A CN 110470363A CN 201910706985 A CN201910706985 A CN 201910706985A CN 110470363 A CN110470363 A CN 110470363A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of air flow meter calibration standard test specimens of building element testing machine, matrix at installing port including the installation frame for being installed on building element testing machine, multiple air holes are provided on matrix, it is correspondingly arranged on plugging valve at each air hole, the valve driving machine structure being sequentially connected with corresponding plugging valve to drive plugging valve to open and/or close corresponding air hole is provided on matrix.Plugging valve, which is corresponded to, by valve driving machine structure opens and/or close air hole, to realize the selection of different ventilative sectional areas on matrix, in the air mass flow meter calibrating to building element testing machine, it driven valve door drive mechanism need to only can be realized outside button case, manpower is not needed by sealing off adhesive tape to be blocked and be opened to air hole, it does not need more frequently to remove disassembling buckle case, greatly reduces the calibration intensity of air flow meter.
Description
Technical field
The present invention relates to the air flow meter calibration standard test specimens in a kind of building element testing machine calibration field.
Background technique
For the building elements such as door and window, glass curtain wall, building element testing machine airtight to its, watertight and wind resistance are needed
Pressure performance is detected, reference can be made to GB/t7106 " building external doors and windows airtight, watertight, resisting wind press capacity detection method ", the national standard
The 5.1st in process to building element air-leakage test is described in detail, building element testing machine includes pressure as shown in Figure 1:
Power case a is provided with ventilation apparatus d on the rear side boxboard of forbay, installation frame i, installation frame is provided on front side of forbay
On be provided with installing port for building element g installation, case h is buckled on front side of installation frame, between button case and installation frame
It is provided with sealing strip j, detains and is provided on case for the air mass flow device i.e. air flow meter to building element air-leakage test
f。
In use, building element is installed on the installing port of installation frame, ventilation apparatus air feed into forbay passes through
The inleakage that air flow meter detects detects the air-tightness of building element.According to the standard, to guarantee to build structure
The test accuracy of part testing machine also needs the calibration to air flow meter air inlet regular (should not exceed 6 months), and calibration method is such as
" air-flow measurement system check method " disclosed in the standard Appendix B, as shown in Fig. 2, being tested when calibration in building element
Standard specimen b is installed, standard specimen includes with a thickness of 3mm, specification 500mm*500mm at the installing port of the installation frame a of machine
Stainless steel plate, array is disposed with the air hole c that 16 diameters are 20mm on the stainless steel plate.
It is described in the B.6 method of calibration of Appendix B, B.6.1 by whole aperture rubber belt sealings, by this standard 8.2 ~ 8.3
Test requirements document pressurized in sequence records the air speed value under relevant pressure and the air penetration magnitude that is scaled under standard state as attached
Add the quantity of air infiltration.B.6.2 sealant tape is successively opened, according to the sequence in 1,2,4,8,16 holes, presses 9.1 test requirements documents respectively
Pressurized in sequence records the air speed value under relevant pressure and is scaled total air penetration magnitude under standard state.B.6.3 it repeats
Step B.6.1, B.6.2 step 2 time, obtain 3 check results, different number of aperture correspond to table B.1 in air flow value, table
B.1 when the calculated value of the air flow value of different apertures is an aperture, air flow value 10.31m3/ h, two
When aperture, air flow value 19.89m3/ h, when four apertures, air flow value 39.35m3/ h, when eight apertures, air
Flow value is 79.63m3/ h, when 16 apertures, air flow value is 154.59 m3/ h is tried by standard value and test component
The reading for testing the air flow meter of machine is compared, and should be modified when error is more than 5%.
Problems of the prior art are: standard specimen need to provide full closeding state, 1 aperture state, 2 open
A variety of working conditions such as Kong Zhong, 4 aperture states, 8 aperture states, 16 aperture states, the prior art are detained by opening
Then case is blocked by adhesive tape and does not need open hole to realize, the size for detaining case is larger, for glass curtain wall testing machine
For, the size for detaining case is bigger, in entire calibration process, needs frequently to open button case, frequently goes to seal off adhesive tape, work is strong
Degree is very big, and calibration efficiency is very poor.
Summary of the invention
The purpose of the present invention is to provide one kind not to need frequent disassembling buckle case, does not need frequently to carry out corresponding air hole
The air flow meter calibration standard test specimen that adhesive tape is sealed off.
In order to solve the above technical problems, the technical solution in the present invention is as follows:
A kind of air flow meter calibration standard test specimen of building element testing machine, including for being installed on building element testing machine
Installation frame installing port at matrix, be provided with multiple air holes on matrix, be correspondingly arranged on envelope at each air hole
Valve is blocked up, is provided with and is sequentially connected with corresponding plugging valve to drive plugging valve to open and/or close corresponding breathe freely on matrix
The valve driving machine structure in hole.
Valve driving machine structure is electric driving mechanism, pneumatic drive mechanism or driving mechanism of surging.
Air hole has four rows up and down, and every row's air hole includes four spaced apart four air holes in left-right direction,
The aperture of each air hole is consistent.
The corresponding two valve driving machine structures of four air holes in same row, one of valve driving machine structure are and one
First valve driving machine structure of the corresponding plugging valve transmission connection of ventilative aperture, another valve driving machine structure be and its
Second valve driving machine structure of the corresponding three plugging valves transmission connection of excess-three air hole.
First valve driving machine structure is set to the left side of corresponding four air holes of row, and the second valve driving machine structure is set to
The right side of four air holes of row is corresponded to, pivot center is sequentially connected on the power output end of the second valve driving machine structure along left
The second driving shaft that right direction extends, second driving shaft are located at the upside or downside of corresponding row's air hole, second driving shaft with
Corresponding three plugging valves are sequentially connected and realize the second valve driving machine structure to corresponding plugging valve transmission.
Each plugging valve is hinged and connected with matrix, and the hinge axes of plugging valve are extended in left-right direction, plugging valve
Door passes through drawstring and closure with reduction torsion spring of the setting for the corresponding air hole of plugging valve closing between matrix, second driving shaft
Valve transmission connection, drawstring are connected to side of the plugging valve far from hinge axes.
The invention has the benefit that corresponding to plugging valve in the present invention by valve driving machine structure and opening and/or close
Air hole, to realize the selection of different ventilative sectional areas on matrix, in the air mass flow meter calibrating to building element testing machine,
It driven valve door drive mechanism need to only can be realized outside button case, not need manpower by sealing off adhesive tape to block to air hole
And opening, it does not need more frequently to remove disassembling buckle case, greatly reduces the calibration intensity of air flow meter.
Detailed description of the invention
Fig. 1 is the usage state diagram of building element testing machine in background of invention；
Fig. 2 is the usage state diagram of background of invention Plays test specimen；
Fig. 3 is the structural schematic diagram of one embodiment of air mass flow meter calibrating standard specimen in the present invention；
Fig. 4 is the sectional view along A-A of Fig. 3；
Fig. 5 is the rearview of Fig. 3；
Fig. 6 is the perspective view of Fig. 3；
Fig. 7 is enlarged drawing at B in Fig. 5.
Specific embodiment
The implementation of air flow meter calibration standard test specimen is for example shown in Fig. 3 ~ 7: standard specimen includes building for being installed on
The matrix 1 at the installing port of the installation frame of component test machine is built, the standard specimen in the present embodiment is used for door/window testing machine
Air flow meter calibrated, matrix includes the substrate 4 that plate thickness extends along the longitudinal direction, and array is disposed with 16 on substrate
Mounting hole, 16 mounting holes form four rows up and down, and every row includes four spaced apart mounting holes in left-right direction, matrix
Further include the mounting base 2 by screw releasable connection at corresponding mounting hole, sealing ring is provided between mounting base and substrate.In
The air hole 3 for running through matrix along the longitudinal direction is offered in each mounting base, the diameter of each air hole is consistent, is 20mm.Mark
Quasi- test specimen further includes the plugging valve 13 that arrangement is corresponded with each air hole, and the upper end of each plugging valve 13 is pacified with corresponding respectively
Dress seat 2 is hinged and connected, and the hinge axes of plugging valve are extended in left-right direction, are set between plugging valve 13 and mounting base 2
It is equipped with the reduction torsion spring 8 for forcing plugging valve to block corresponding air hole, plugging valve is in the windward side of substrate.On matrix
It is provided with and is sequentially connected with corresponding plugging valve to drive the valve driving machine structure of plugging valve opening, in the present embodiment valve
Driving mechanism is electric driving mechanism, and valve driving machine structure includes steering engine, corresponding two valves of four in same row air hole
Driving mechanism, one of valve driving machine structure are the first valve of plugging valve transmission connection corresponding with a ventilative aperture
Door drive mechanism 10, another valve driving machine structure are that three plugging valves corresponding with its excess-three air hole transmission connects
The the second valve driving machine structure 12 connect.
First valve driving machine structure 10 is set to the left side of corresponding four air holes 3 of row, the second valve driving machine structure 12
It is set to the right side of corresponding four air holes 3 of row, is sequentially connected with rotation on the power output end of the second valve driving machine structure
The second driving shaft 5 that axis extends in left-right direction, second driving shaft are located at the upside of corresponding row's air hole, second driving shaft
5, which are sequentially connected by drawstring 6 with corresponding three plugging valves, realizes that the second valve driving machine structure is driven to corresponding plugging valve,
Drawstring 6 is connected to side of the plugging valve far from hinge axes.The company of transmission on the power output end of first valve driving machine structure 10
It is connected to the first transmission shaft 9 that pivot center extends in left-right direction, the first transmission shaft 9 is set with 5 coaxial line interval of second driving shaft
It sets, the shared transmission shaft support 11 of abutting end of the first transmission shaft 9, second driving shaft 5, i.e. the first transmission shaft, the second transmission
The abutting end difference rolling assembling of axis is in the both ends of the mounting hole on transmission shaft support, the first transmission shaft 9, second driving shaft 5
Abutting end is rotatablely installed on the transmission shaft support 11, and the first transmission shaft is driven by drawstring with a corresponding plugging valve
Connection, when the first transmission shaft, second driving shaft rotation, drawstring is wound on corresponding transmission shaft, so as to by corresponding envelope
Stifled valve is opened.
In use, the matrix is installed at the installing port of the installation frame of building element testing machine, at each plugging valve
In side windward, when each valve driving machine structure does not work, by the effect of reduction torsion spring, each plugging valve blocks correspondence respectively
Air hole, the completely enclosed mode of the standard specimen in standard may be implemented at this time, since plugging valve is in side windward,
Therefore reduction torsion spring is not required to too big reset force, ensures that plugging valve to the good envelope of air hole under the action of wind pressure
Stifled performance.One the first valve driving machine structure work may be implemented an air hole and open, two the first valve driving machine structure works
Two air holes may be implemented to open, the first valve driving machine structure work, the second valve driving machine structure work can
To realize that four air holes are opened, two the first valve driving machine structures, two the second valve driving machine structure work may be implemented eight
A air hole is opened, and all valve driving machine structures work at the same time, 16 air holes may be implemented and open simultaneously, pass through the setting
Form under the service condition that can satisfy less driving mechanism, meets the various conditions dictates in national standard, on the one hand can be with
Facilitate the setting of driving mechanism, still further aspect can also save cost.
In other embodiments of the invention, when being calibrated for the air flow meter to building curtain wall testing machine,
Mounting base can be replaced, the mounting base with more large aperture air hole is changed；Each plugging valve can also be arranged in a one-to-one correspondence valve
Door drive mechanism；The steering engine axis of the steering engine of valve driving machine structure can also directly be connected with plugging valve and plugging valve is driven to turn
It is dynamic；Valve driving machine structure can also be pneumatic drive mechanism or driving mechanism of surging, for example will be sealed by pneumatic cylinder or hydraulic cylinder
Stifled valve opens；The closing and unlatching of plugging valve can also be realized by valve driving machine structure；The two rows of position on the lower are thoroughly
Stomata, plugging valve corresponding to four air holes of each row can also be driven by the same valve driving machine structure, thus may be used
To save two valve driving machine structures, to save the cost of manufacture of standard specimen and the arrangement difficulty of valve driving machine structure；Respectively
Air hole may not be round air hole, as long as meeting corresponding sectional area requirement.
Claims (6)
1. a kind of air flow meter calibration standard test specimen of building element testing machine, including for being installed on building element test
Matrix at the installing port of the installation frame of machine is provided with multiple air holes on matrix, it is characterised in that: equal at each air hole
Be correspondingly arranged on plugging valve, be provided on matrix with corresponding plugging valve be sequentially connected with drive plugging valve open and/or
Close the valve driving machine structure of corresponding air hole.
2. air flow meter calibration standard test specimen according to claim 1, it is characterised in that: valve driving machine structure is electricity
Dynamic driving mechanism, pneumatic drive mechanism or driving mechanism of surging.
3. air flow meter calibration standard test specimen according to claim 1 or 2, it is characterised in that: air hole has up and down
Four rows, every row's air hole includes four, and spaced apart four air holes, the aperture of each air hole are consistent in left-right direction.
4. air flow meter calibration standard test specimen according to claim 3, it is characterised in that: its in four row's air holes
Middle two rows, the corresponding two valve driving machine structures of four air holes in same row, one of valve driving machine structure are and one
First valve driving machine structure of the corresponding plugging valve transmission connection of ventilative aperture, another valve driving machine structure be and its
Second valve driving machine structure of the corresponding three plugging valves transmission connection of excess-three air hole.
5. air flow meter calibration standard test specimen according to claim 4, it is characterised in that: the first valve driving machine structure
It is set to the left side of corresponding four air holes of row, the second valve driving machine structure is set to the right side of corresponding four air holes of row
Side is sequentially connected with the second transmission that pivot center extends in left-right direction on the power output end of the second valve driving machine structure
Axis, second driving shaft are located at the upside or downside of corresponding row's air hole, and second driving shaft is driven with corresponding three plugging valves
It connects and realizes the second valve driving machine structure to corresponding plugging valve transmission.
6. air flow meter calibration standard test specimen according to claim 5, it is characterised in that: each plugging valve and matrix
It is hinged and connected, the hinge axes of plugging valve are extended in left-right direction, are arranged between plugging valve and matrix for blocking
Valve closes the reduction torsion spring of corresponding air hole, and second driving shaft is sequentially connected by drawstring and plugging valve, and drawstring is connected to
Side of the plugging valve far from hinge axes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706985.2A CN110470363B (en) | 2019-08-01 | 2019-08-01 | Standard test piece for air flow meter calibration of building member testing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910706985.2A CN110470363B (en) | 2019-08-01 | 2019-08-01 | Standard test piece for air flow meter calibration of building member testing machine |
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| CN110470363A true CN110470363A (en) | 2019-11-19 |
| CN110470363B CN110470363B (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254877A (en) * | 2020-09-03 | 2021-01-22 | 河南牛帕力学工程研究院 | Calibrating device of building element testing machine |
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Effective date of registration: 20220909 Address after: No. B9-3113, Phase III, Wuzhou City, Zhongyuan West Road, Xingyang City, Zhengzhou City, Henan Province, 450100 Patentee after: Henan Yangcheng Industrial Equipment Co.,Ltd. Address before: Room 2403, 24 / F, building 1, 238 Tongbai South Road, Zhongyuan District, Zhengzhou City, Henan Province, 450000 Patentee before: Henan Niupa Institute of Mechanical Engineering |