CN103792038A - Flow limit clamp for piezometric tube - Google Patents
Flow limit clamp for piezometric tube Download PDFInfo
- Publication number
- CN103792038A CN103792038A CN201410061723.2A CN201410061723A CN103792038A CN 103792038 A CN103792038 A CN 103792038A CN 201410061723 A CN201410061723 A CN 201410061723A CN 103792038 A CN103792038 A CN 103792038A
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- train wheel
- lower plate
- wheel bridge
- current limliting
- piezometric tube
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Abstract
The invention relates to a flow limit clamp for a piezometric tube. The flow limit clamp comprises an upper clamp plate, a lower clamp plate and a rotating piece. The rotating piece is arranged between the upper clamp plate and the lower clamp plate and used for enabling the upper clamp plate and the lower clamp plate to relatively rotate to clamp the piezometric tube to be subjected to flow limit. The upper clamp plate and/or the lower clamp plate are/is provided with at least one through flow limit groove used for clamping and fixing the piezometric tube to be subjected to flow limit, and the upper clamp plate and/or the lower clamp plate are/is provided with a distance adjusting component which is used for adjusting the clamping distance between the upper clamp plate and the lower clamp plate. Due to the fact that the flow limit groove is of a concave structure with a through wall face, when the piezometric tube to be subjected to flow limit is clamped, a pressure transmission channel of the piezometric tube can not be completely sealed, the effect of compressing the transmission channel is achieved, a temporary flow limiter is formed, the appearance structure of the piezometric tube can not be damaged, the clamping position can be adjusted at will, the flow limiter can be located at different positions of the piezometric tube, and the temporary flow limiter is simple and convenient to arrange.
Description
Technical field
The present invention relates to pressure test equipment technical field, be specifically related to a kind of piezometric tube current limliting and press from both sides.
Background technology
Surface pressure force measurement is widely used in fields such as machinery, building, traffic.In a lot of engineering application (heavy construction, aircraft, bullet train etc.), need to know the instantaneous blast on measured object surface.Can calculate the suffered instantaneous aerodynamic force of structure based on this, and calculate the data of being concerned about in the engineerings such as the vibratory response of structure.But owing to there being the pressure measurement pipeline of certain length in pressure measuring system, the transient pressure (being time dependent fluctuation pressure) of body surface, the scanning valve that could arrive after pipeline transmission.Pressure wave, that is to say because the damping action of pipeline produces distortion through the transmission meeting of pipeline, and pressure and model surface pressure that scanning valve senses are not in full accord, and the amplitude of pressure signal and phase place all can change.Scanning the measured pressure of valve is not the true pressure of model surface, but pressure after pipeline distortion effect.
The distortion that pressure produces through piezometric tube transmission is relevant with the natural frequency of air column in pipeline, and " Frequency Response " is relevant.Conventionally, piezometric tube length is longer, internal diameter is larger, and the distortion causing can be more for remarkable.For the pressure measurement pipeline of a certain length-specific and internal diameter, distortion is also subject to the ripple frequency impact of tested pressure signal self.When by the ripple frequency of measuring pressure during much smaller than pipeline natural frequency, signal distortion is also not obvious; And (can in pipeline, produce resonance) in the time being approached pipeline natural frequency by the ripple frequency of measuring pressure, and signal distortion meeting highly significant, the amplitude of pressure fluctuation that main manifestations is pipe end is much larger than the pulsation amplitude of entrance (being raw pressure signal).Meanwhile, the phase place of pipe end pressure fluctuation lags behind raw pressure signal, and with increasing of signal frequency, phase place lags behind more remarkable.In order to improve the Frequency Response of pressure measurement pipeline, should improve the natural frequency of pipeline, to expand the less frequency range of distortion as far as possible.At present, the common way little steel pipe of a bit of internal diameter minimum (about 0.4mm) of connecting on appropriate location in pipeline improves the resonant frequency of pressure measurement pipeline, to reach the object of improving Frequency Response.This minimum little steel pipe of internal diameter that seals in pressure measurement pipeline is called " restrictor ".In pressure measurement pipeline, sealing in the minimum restrictor of internal diameter, is a kind of the most widely used method of improving pipeline frequency response in current wind-tunnel simultaneous multi-pressure measurement experiment.
The method has the problem of following several aspects:
(1) add restrictor need to cut off original pressure measurement pipeline, this makes troubles to experimental implementation;
(2) once cut off pressure measurement pipeline, pack into after restrictor, its position can not be adjusted (because flow restrictor location is improved by affecting the frequency response of piezometric tube) again;
(3) once the length of restrictor determine also can not adjust;
(4) if fill multiple restrictors in same pipeline, need to cut off pipeline in many places, this may cause the problem of piezometric tube poor sealing;
(5) internal diameter of restrictor self can not regulate (Frequency Response that the internal diameter of restrictor also can affect piezometric tube).
Summary of the invention
For the shortcoming of the current-limiting mode of current piezometric tube, provide a kind of piezometric tube current limliting to press from both sides, flatten local piezometric tube from the outside structure with similar " clip " of piezometric tube, but assurance can not shut the conveyance conduit of piezometric tube completely, that a bit of pipeline being crushed so just can play the effect of similar restrictor, both piezometric tube need not be cut off, length and the position of current limliting can be regulated arbitrarily again.Current limliting folder inner side has some grooves, piezometric tube can be fixed in groove, by regulating the clamping degree of current limliting folder, can realize easily the effect of restrictor.Can clamp tightness by adjustment, the effect that reaches flattening piezometric tube plays the same effect of restrictor, realizes the object of adjusting piezometric tube frequency response.
To achieve these goals, concrete technical scheme of the present invention:
A kind of piezometric tube presss from both sides by current limliting, comprise train wheel bridge, lower plate and be located at train wheel bridge and lower plate between with treating the tumbler of current limliting piezometric tube so that train wheel bridge and lower plate relatively rotate to clamp, on train wheel bridge and/or lower plate, offer at least one in order to grip the current limliting groove of the perforation for the treatment of current limliting piezometric tube, on train wheel bridge and/or lower plate, be also provided with to regulate the spacing adjusting part that clamps spacing between train wheel bridge and lower plate.Realize relatively rotating between train wheel bridge and lower plate by tumbler.Train wheel bridge and lower plate treat that by relatively rotating clamping current limliting piezometric tube or relieving treat current limliting piezometric tube.Treating current limliting piezometric tube by the current limliting groove of the perforation on train wheel bridge and/or lower plate grips.Make the pressure Transfer pipe in current limliting piezometric tube treated in clamping process only understand subcontract and can thoroughly do not sealed by the concave configuration of current limliting groove.
Preferably, spacing adjusting part comprise the first screw of being opened on train wheel bridge, be opened in the second screw on lower plate and be connected to the first screw and the second screw in order to regulate the screw that clamps spacing between train wheel bridge and lower plate, the first screw, the second screw and screw coupling arrange.
Preferably, spacing adjusting part comprises to be located at the first sawtooth on train wheel bridge edges of boards and to be located at the outstanding limit with the second sawtooth on lower plate edges of boards, the first sawtooth mates setting with the second sawtooth, and the relative position on train wheel bridge edges of boards and outstanding limit regulates fixing to regulate the clamping spacing between train wheel bridge and lower plate by the first sawtooth and the second sawtooth that match.
Preferably, current limliting groove is parallel with the turning axle of tumbler.
Preferably, on train wheel bridge and lower plate, all offer current limliting groove, the layout corresponding to the current limliting groove on lower plate of the current limliting groove on train wheel bridge.
Preferably, offer many current limliting grooves on train wheel bridge and/or lower plate, many current limliting grooves are parallel to each other.
Preferably, the slot cross-section size of the current limliting groove of close tumbler is greater than the slot cross-section size away from the current limliting groove of tumbler.
Preferably, the edges of boards of train wheel bridge and the edges of boards of lower plate are connected by tumbler.
Preferably, the edges of boards of train wheel bridge are connected by tumbler with lower plate middle part.
Preferably, train wheel bridge and lower plate interval layout, the middle part of train wheel bridge is connected by tumbler with the middle part of lower plate.
Another concrete technical scheme of the present invention:
A kind of piezometric tube presss from both sides by current limliting, comprise train wheel bridge and lower plate, train wheel bridge and interval parallel with lower plate arranged, on train wheel bridge and/or lower plate, offer at least one in order to grip the current limliting groove of the perforation for the treatment of current limliting piezometric tube, on train wheel bridge and/or lower plate, be also provided with to regulate the spacing adjusting part that clamps spacing between train wheel bridge and lower plate.
Preferably, spacing adjusting part comprise the first screw of being opened on train wheel bridge, be opened in the second screw on lower plate and be connected to the first screw and the second screw in order to regulate the screw that clamps spacing between train wheel bridge and lower plate, the first screw, the second screw and screw coupling arrange.
Preferably, spacing adjusting part comprises to be located at the first sawtooth on train wheel bridge edges of boards and to be located at the outstanding limit with the second sawtooth on lower plate edges of boards, the first sawtooth mates setting with the second sawtooth, and the relative position on train wheel bridge edges of boards and outstanding limit regulates fixing to regulate the clamping spacing between train wheel bridge and lower plate by the first sawtooth and the second sawtooth that match.
Patent beneficial effect of the present invention is:
1, need not cut off piezometric tube, the installation and removal of current limliting folder is all very convenient;
2, can arbitrarily regulate current limliting to be clipped in the clip position on piezometric tube, realize the effect that flow restrictor location regulates;
3, the degree of tightening up of current limliting folder can regulate arbitrarily by spacing adjusting part, realizes adjustment and the optimization of piezometric tube frequency response;
4, multiple current limliting folders can be installed easily on piezometric tube, realize the adjusting of many restrictors to piezometric tube frequency response;
5, a current limliting folder can have multiple grooves, and a current limliting folder can regulate multiple piezometric tube frequency responses simultaneously;
6, the length of current limliting folder can have sizes, and the current limliting folder of several length dimensions can use jointly, can realize easily the optimization that frequency response regulates;
7, current limliting folder can Reusability;
8, in the time that piezometric tube quantity is more (in simultaneous multi-pressure measurement experiment, piezometric tube quantity reaches hundreds of sometimes, does not add arrangement meeting very mixed and disorderly), current limliting folder of the present invention can also play the effect that grouping arranges to piezometric tube.
Below in conjunction with accompanying drawing, patent of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is one of structural representation of the piezometric tube current limliting folder of the embodiment of the present invention;
Fig. 2 be the piezometric tube current limliting folder of the embodiment of the present invention structural representation two;
Fig. 3 be the piezometric tube current limliting folder of the embodiment of the present invention structural representation three.
Marginal data:
1, train wheel bridge; 2, lower plate; 3, tumbler; 4, current limliting groove; 5, spacing adjusting part; 501, the first screw; 502, the second screw; 503, screw; 504, the first sawtooth; 505, the second sawtooth; 6, outstanding limit.
Embodiment
Below to the further illustrating of patented technology content of the present invention, but the not restriction to patent flesh and blood of the present invention.
Fig. 1 is one of structural representation of the piezometric tube current limliting folder of the embodiment of the present invention; Fig. 2 be the piezometric tube current limliting folder of the embodiment of the present invention structural representation two; Fig. 3 be the piezometric tube current limliting folder of the embodiment of the present invention structural representation three.
As shown in Figure 1, 2, piezometric tube comprise train wheel bridge 1, lower plate 2 with current limliting folder and be located at train wheel bridge 1 with lower plate 2 between with so that train wheel bridge 1 relatively rotate and clamp the tumbler 3 for the treatment of current limliting piezometric tube with lower plate 2, on train wheel bridge 1 and/or lower plate 2, offer at least one in order to grip the current limliting groove 4 of the perforation for the treatment of current limliting piezometric tube, on train wheel bridge 1 and/or lower plate 2, be also provided with to regulate the spacing adjusting part 5 that clamps spacing between train wheel bridge 1 and lower plate 2.Between train wheel bridge 1 and lower plate 2, realized and being relatively rotated by tumbler 3, tumbler 3 is as the rotation axis between train wheel bridge 1 and lower plate 2.Train wheel bridge 1 and lower plate 2 are treated current limliting piezometric tube and are gripped by being opened in current limliting groove 4 on train wheel bridge 1 and/or lower plate 2, treat the cloth set direction setting of current limliting piezometric tube along current limliting groove 4.Because current limliting groove 4 is for connecting the concave configuration of wall,, the pressure Transfer pipe of piezometric tube thoroughly can not sealed during until current limliting piezometric tube in clamping, only play the effect of compression Transfer pipe, form interim restrictor.Current limliting folder can not form injury to the contour structures of piezometric tube, can reuse, and can regulate arbitrarily clip position, is formed on the restrictor of different parts on piezometric tube, and interim restrictor arranges simple and convenient.Can regulate arbitrarily by spacing adjusting part 5 clamp distance of train wheel bridge 1 and lower plate 2, in order to regulate the radial dimension of Transfer pipe of piezometric tube.
As shown in Figure 1, it is also, spacing adjusting part 5 comprise the first screw 501 of being opened on train wheel bridge 1, be opened in the second screw 502 on lower plate 2 and be connected to the first screw 501 and the second screw 502 between train wheel bridge 1 and lower plate 2, clamp spacing in order to regulate screw 503, the first screws 501, the second screw 502 and screw 503 couplings arrange.Screw 503 two ends are mated respectively and are connected on the first screw 501 and the second screw 502, screw 503 is transferred train wheel bridge 1 by regulating with the relative position of the first screw 501, screw 503 is transferred lower plate 2 by regulating with the relative position of the second screw 502, thereby be adjusted in the spacing between screw 503 position train wheel bridges 1 and lower plate 2, realize the adjusting for the treatment of current limliting piezometric tube internal pressure Transfer pipe radial dimension.
As shown in Figure 2, it is also, spacing adjusting part 5 comprises to be located at the first sawtooth 504 on train wheel bridge 1 edges of boards and to be located at the outstanding limit 6 with the second sawtooth 505 on lower plate 2 edges of boards, the first sawtooth 504 mates setting with the second sawtooth 505, and the relative position on train wheel bridge 1 edges of boards and outstanding limit 6 regulates fixing to regulate the clamping spacing between train wheel bridge 1 and lower plate 2 by the first sawtooth 504 and the second sawtooth 505 that match.Train wheel bridge 1 regulates the relative position of train wheel bridge 1 edges of boards on outstanding limit 6 by the first sawtooth 504 of edges of boards and the fixing of the second sawtooth 505, thereby be adjusted in the spacing between outstanding limit 6 position train wheel bridges 1 and lower plate 2, realize the adjusting for the treatment of current limliting piezometric tube internal pressure Transfer pipe radial dimension.
As shown in Figure 1, 2, 3, it is also, current limliting groove 4 is parallel with the turning axle of tumbler 3.Current limliting groove 4 is crossing with the axial rotary of tumbler 3.Train wheel bridge 1 and lower plate 2 intervals layouts, current limliting groove 4 is vertical with the axial rotary of tumbler 3.Relative position by change current limliting groove 4 with the turning axle of tumbler 3, forms current limliting and presss from both sides the different method of clamping for the treatment of current limliting piezometric tube, makes the scope of application of current limiting tube wider.
As shown in Figure 1, it is also, on train wheel bridge 1 and lower plate 2, all offers current limliting groove 4, the current limliting groove 4 on train wheel bridge 1 and the corresponding layout of current limliting groove 4 on lower plate 2.The current limliting groove 4 of upper and lower correspondence is set, treats that current limliting piezometric tube is gripping, the radial dimension of pressure Transfer pipe is evenly changed, current limitation effect is better, is more convenient to implement to control.
As shown in Figure 1, 2, 3, it is also, offers many current limliting grooves 4 on train wheel bridge 1 and/or lower plate 2, and many current limliting grooves 4 are parallel to each other.Can clamp many simultaneously and treat current limliting piezometric tube, many piezometric tube be carried out to current limliting simultaneously, collect in addition effect of contraction for many piezometric tube, prevent the problem that pipeline too much causes confusion simultaneously.
It is also, is greater than the slot cross-section size away from the current limliting groove 4 of tumbler 3 near the slot cross-section size of the current limliting groove 4 of tumbler 3.For evenly the many clampings for the treatment of current limliting piezometric tube being limited, control and treat that to many current limliting piezometric tube is consistent, make to form identical interim restrictor by multiple piezometric tube of same current limliting folder clamping.Prevent that the excessive pressure Transfer pipe that makes piezometric tube of holding force being subject near the piezometric tube of driving member 3 from being sealed completely.
As shown in Figure 1, it is also, the edges of boards of train wheel bridge 1 are connected by tumbler 3 with the edges of boards of lower plate 2.Can unify to control the plate face clamping of driving member 3 one sides, be convenient to control for the clamping restriction effect for the treatment of current limliting piezometric tube.
It is also, the edges of boards of train wheel bridge 1 are connected by tumbler 3 with lower plate 2 middle parts.Train wheel bridge 1 can carry out 180 on lower plate 2
°rotation, realize that train wheel bridge 1 is two-sided all can be clamped with respect to lower plate 2.
It is also, train wheel bridge 1 and lower plate 2 intervals layouts, and the middle part of train wheel bridge 1 is connected by tumbler 3 with the middle part of lower plate 2.By being rotationally connected of middle part, can realizing tumbler 3 both sides and can realize simultaneously and gripping.
As shown in Figure 3, piezometric tube presss from both sides by current limliting, comprise train wheel bridge 1 and lower plate 2, train wheel bridge 1 and interval parallel with lower plate 2 arranged, on train wheel bridge 1 and/or lower plate 2, offer at least one in order to grip the current limliting groove 4 of the perforation for the treatment of current limliting piezometric tube, on train wheel bridge 1 and/or lower plate 2, be also provided with to regulate the spacing adjusting part 5 that clamps spacing between train wheel bridge 1 and lower plate 2.Train wheel bridge 1 and lower plate 2 are treated current limliting piezometric tube and are gripped by being opened in current limliting groove 4 on train wheel bridge 1 and/or lower plate 2, treat the cloth set direction setting of current limliting piezometric tube along current limliting groove 4.Because current limliting groove 4 is for connecting the concave configuration of wall,, the pressure Transfer pipe of piezometric tube thoroughly can not sealed during until current limliting piezometric tube in clamping, only play the effect of compression Transfer pipe, form interim restrictor.Current limliting folder can not form injury to the contour structures of piezometric tube, can reuse, and can regulate arbitrarily clip position, is formed on the restrictor of different parts on piezometric tube, and interim restrictor arranges simple and convenient.Can regulate arbitrarily by spacing adjusting part 5 clamp distance of train wheel bridge 1 and lower plate 2, in order to regulate the radial dimension of Transfer pipe of piezometric tube.
It is also, spacing adjusting part 5 comprise the first screw of being opened on train wheel bridge 1, be opened in the second screw on lower plate 2 and be connected to the first screw and the second screw in order to regulate the screw that clamps spacing between train wheel bridge 1 and lower plate 2, the first screw, the second screw and screw coupling arrange.Screw two ends are mated respectively and are connected on the first screw and the second screw, screw is transferred train wheel bridge 1 by regulating with the relative position of the first screw, screw is transferred lower plate 2 by regulating with the relative position of the second screw, thereby be adjusted in the spacing between screw position train wheel bridge 1 and lower plate 2, realize the adjusting for the treatment of current limliting piezometric tube internal pressure Transfer pipe radial dimension.
As shown in Figure 3, it is also, spacing adjusting part 5 comprises to be located at the first sawtooth 504 on train wheel bridge 1 edges of boards and to be located at the outstanding limit 6 with the second sawtooth 505 on lower plate edges of boards, the first sawtooth 504 mates setting with the second sawtooth 505, and the relative position on train wheel bridge 1 edges of boards and outstanding limit 6 regulates fixing to regulate the clamping spacing between train wheel bridge 1 and lower plate 2 by the first sawtooth 504 and the second sawtooth 505 that match.Train wheel bridge 1 regulates the relative position of train wheel bridge 1 edges of boards on outstanding limit 6 by the first sawtooth 504 of edges of boards and the fixing of the second sawtooth 505, thereby be adjusted in the spacing between outstanding limit 6 position train wheel bridges 1 and lower plate 2, realize the adjusting for the treatment of current limliting piezometric tube internal pressure Transfer pipe radial dimension.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a piezometric tube presss from both sides by current limliting, it is characterized in that, comprise train wheel bridge, lower plate and be located at train wheel bridge and lower plate between with treating the tumbler of current limliting piezometric tube so that train wheel bridge and lower plate relatively rotate to clamp, on train wheel bridge and/or lower plate, offer at least one in order to grip the current limliting groove of the perforation for the treatment of current limliting piezometric tube, on train wheel bridge and/or lower plate, be also provided with to regulate the spacing adjusting part that clamps spacing between train wheel bridge and lower plate.
2. piezometric tube according to claim 1 presss from both sides by current limliting, it is characterized in that, spacing adjusting part comprise the first screw of being opened on train wheel bridge, be opened in the second screw on lower plate and be connected to the first screw and the second screw in order to regulate the screw that clamps spacing between train wheel bridge and lower plate, the first screw, the second screw and screw coupling arrange.
3. piezometric tube according to claim 1 presss from both sides by current limliting, it is characterized in that, spacing adjusting part comprises to be located at the first sawtooth on train wheel bridge edges of boards and to be located at the outstanding limit with the second sawtooth on lower plate edges of boards, the first sawtooth mates setting with the second sawtooth, and the relative position on train wheel bridge edges of boards and outstanding limit regulates fixing to regulate the clamping spacing between train wheel bridge and lower plate by the first sawtooth and the second sawtooth that match.
4. piezometric tube according to claim 1 presss from both sides by current limliting, it is characterized in that, current limliting groove is parallel with the turning axle of tumbler.
5. piezometric tube according to claim 4 presss from both sides by current limliting, it is characterized in that, all offers current limliting groove on train wheel bridge and lower plate, the layout corresponding to the current limliting groove on lower plate of the current limliting groove on train wheel bridge.
6. piezometric tube according to claim 4 presss from both sides by current limliting, it is characterized in that, offers many current limliting grooves on train wheel bridge and/or lower plate, and many current limliting grooves are parallel to each other.
7. piezometric tube according to claim 6 presss from both sides by current limliting, it is characterized in that, the slot cross-section size of the current limliting groove of close tumbler is greater than the slot cross-section size away from the current limliting groove of tumbler.
8. press from both sides by current limliting according to the piezometric tube described in any one in claim 1 to 7, it is characterized in that, the edges of boards of train wheel bridge are connected by tumbler with the edges of boards of lower plate.
9. press from both sides by current limliting according to the piezometric tube described in any one in claim 1 to 7, it is characterized in that, the edges of boards of train wheel bridge are connected by tumbler with lower plate middle part; Or train wheel bridge and lower plate interval layout, the middle part of train wheel bridge is connected by tumbler with the middle part of lower plate.
10. a piezometric tube presss from both sides by current limliting, it is characterized in that, comprise train wheel bridge and lower plate, train wheel bridge and interval parallel with lower plate arranged, on train wheel bridge and/or lower plate, offer at least one in order to grip the current limliting groove of the perforation for the treatment of current limliting piezometric tube, on train wheel bridge and/or lower plate, be also provided with to regulate the spacing adjusting part that clamps spacing between train wheel bridge and lower plate; Or spacing adjusting part comprises the first screw of being opened on train wheel bridge, is opened in the second screw on lower plate and is connected to the first screw and the second screw in order to regulate the screw that clamps spacing between train wheel bridge and lower plate, the first screw, the second screw and screw coupling arrange; Or spacing adjusting part comprises to be located at the first sawtooth on train wheel bridge edges of boards and to be located at the outstanding limit with the second sawtooth on lower plate edges of boards, the first sawtooth mates setting with the second sawtooth, and the relative position on train wheel bridge edges of boards and outstanding limit regulates fixing to regulate the clamping spacing between train wheel bridge and lower plate by the first sawtooth and the second sawtooth that match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061723.2A CN103792038B (en) | 2014-02-24 | 2014-02-24 | Flow limit clamp for piezometric tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061723.2A CN103792038B (en) | 2014-02-24 | 2014-02-24 | Flow limit clamp for piezometric tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103792038A true CN103792038A (en) | 2014-05-14 |
| CN103792038B CN103792038B (en) | 2017-02-15 |
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ID=50667917
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410061723.2A Expired - Fee Related CN103792038B (en) | 2014-02-24 | 2014-02-24 | Flow limit clamp for piezometric tube |
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| Country | Link |
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| CN (1) | CN103792038B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1123399A (en) * | 1997-07-04 | 1999-01-29 | Mitsubishi Heavy Ind Ltd | Fixing unit for pressure fluctuation sensor |
| EP1636078A1 (en) * | 2003-06-13 | 2006-03-22 | CURRY, Charles Edward | Valve diagnostic tool |
| CN101694249A (en) * | 2009-08-21 | 2010-04-14 | 重庆长安汽车股份有限公司 | Closed type pipe clamp assembly with vibration-proof structure |
| CN201612888U (en) * | 2009-11-28 | 2010-10-27 | 杨丹 | Arraying clip for in-vitro circulating pipeline |
| CN203252685U (en) * | 2013-04-18 | 2013-10-30 | 周少飞 | Adjustable vascular clamp |
| CN203719822U (en) * | 2014-02-24 | 2014-07-16 | 中南大学 | Current-limiting clamp for pressure measurement pipe |
-
2014
- 2014-02-24 CN CN201410061723.2A patent/CN103792038B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1123399A (en) * | 1997-07-04 | 1999-01-29 | Mitsubishi Heavy Ind Ltd | Fixing unit for pressure fluctuation sensor |
| EP1636078A1 (en) * | 2003-06-13 | 2006-03-22 | CURRY, Charles Edward | Valve diagnostic tool |
| CN101694249A (en) * | 2009-08-21 | 2010-04-14 | 重庆长安汽车股份有限公司 | Closed type pipe clamp assembly with vibration-proof structure |
| CN201612888U (en) * | 2009-11-28 | 2010-10-27 | 杨丹 | Arraying clip for in-vitro circulating pipeline |
| CN203252685U (en) * | 2013-04-18 | 2013-10-30 | 周少飞 | Adjustable vascular clamp |
| CN203719822U (en) * | 2014-02-24 | 2014-07-16 | 中南大学 | Current-limiting clamp for pressure measurement pipe |
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| Publication number | Publication date |
|---|---|
| CN103792038B (en) | 2017-02-15 |
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Granted publication date: 20170215 Termination date: 20180224 |