A kind of ultrasonic transducer fastener for clamping ultrasonic flowmeter
It the utility model is related to the ultrasonic transducer fixed network for clamping ultrasonic flowmeter, and in particular to press from both sides to one kind
Fill the ultrasonic transducer fastener of ultrasonic flowmeter.
Ultrasonic flowmeter is a kind of flow measurement instrument gradually paid attention in recent years.Known ultrasonic flowmeter
Usually according to operation time difference principle work.In time difference principle, ultrasonic wave is assessed (especially relative to the flow direction of liquid
Ultrasonic pulse, so-called surge) different run times.Therefore, ultrasonic pulse with pipe axis it is at an angle
It is transmitted on flow direction and on the direction opposite with flow direction.If it is known that the diameter of line sections, then using run time
Difference can determine flow and thus may determine that volume flow.Ultrasound is produced or received by means of so-called ultrasonic transducer
Ripple.For this purpose, ultrasonic transducer is fixedly attached to the tube wall of related line sections.Ultrasonic transducer also be used as
Clamp measuring ultrasonic wave flow system, such as existing UFT types ultrasonic flowmeter.In such systems, from the outer of measurement pipe
Side extrudes ultrasonic transducer against tube wall.Those clamp the characteristics of maximum of measuring ultrasonic wave flow system and are that they do not connect
Touch measurement medium and on existing pipeline, thus be widely used in various fields, it is worn by measuring ultrasonic wave
Cross and treat that the time of fluid measured realizes the measurement of fluid flow rate and flow, there is non-cpntact measurement, no pressure loss, application
Extensively, strong applicability, the advantages that safeguarding is easily installed, is widely applicable for various fluid media (medium)s and working condition, including high temperature, height
The measurement of the special media flow such as pressure, non-conductive, severe corrosive, explosive and radioactivity.But clamp supersonic flow existing
In system for measuring quantity, ultrasonic transducer is fixed on the tube wall of related line sections usually using the fixation bandage of iron chains, still,
The fixing device of many ultrasonic transducers is to repeatedly kick into capable fastening by chain bandage etc., the bad control of dynamics of this mode,
Too tight easily damage ultrasonic transducer, it is too loose, then it can influence measurement accuracy.
Utility model content
Technical problem to be solved in the utility model is the bad control of fastener dynamics of ultrasonic transducer.
To achieve these goals, technical scheme provided by the utility model is：It is a kind of to clamp the super of ultrasonic flowmeter
Sonic transducer fastener, including bottom plate, the lower end of the bottom plate is provided with transducer, and the lower end of transducer is against the pipe of downside
On road, the upper end of the bottom plate is circumferentially with upward guide rod, and guide rod is socketed with pressing plate and support successively from top to bottom
Plate, the upper end of the guide rod is connected with block, and the lower end of block is against the upside of supporting plate, and the lower end of the supporting plate is left
Right both sides are hingedly connected with flap, and bottom plate and pressing plate are respectively positioned between two flaps, the lower end of the flap be connected with
The clamping plate of circular arc corresponding to pipeline, and two relative end faces of clamping plate are squeezed on pipeline, the lower end of the clamping plate is connected with company
Block is connect, and two contiguous blocks are located at the downside of pipeline, are connected between two contiguous blocks by screw bolt and nut, under the pressing plate
Spring is uniformly provided between end and bottom plate, and the upper center of supporting plate is plugged with threaded rod, the lower end of the threaded rod and pressure
It is rotatablely connected between plate, the upper end of the threaded rod is provided with spin-block.
Preferably, it is threadedly coupled between the block and guide rod.
Preferably, be formed in one structure between the flap, clamping plate and contiguous block.
Preferably, connected between the threaded rod and pressing plate by taper roll bearing.
The utility model is designed, and transducer is placed on pipeline first, puts down the clamping plate of both sides, will by screw bolt and nut
Two contiguous blocks are fixed, and rotate spin-block, and threaded rod moves down, and pressing plate extrudes bottom plate by spring, and transducer and pipe are driven by bottom plate
Road contacts, and so, under the action of the spring, ensures that dynamics is not too large, also will not be too loose, has certain toughness, well
Transducer is protected, also improves measurement result.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is front view of the present utility model.
In figure：1 bottom plate, 2 transducers, 3 guide rods, 4 pressing plates, 5 supporting plates, 6 blocks, 7 flaps, 8 clamping plates, 9 contiguous blocks, 10
Bolt, 11 springs, 12 threaded rods, 13 spin-blocks.
As illustrated, a kind of ultrasonic transducer fastener for clamping ultrasonic flowmeter, including bottom plate 1, under bottom plate 1
End is provided with transducer 2, and the lower end of transducer 2 is against on the pipeline of downside, and the upper end of bottom plate 1 is circumferentially with upward guide rod
3, and guide rod 3 is socketed with pressing plate 4 and supporting plate 5 successively from top to bottom, the upper end of guide rod 3 is connected with block 6, and block 6
Lower end be against the upside of supporting plate 5, be threadedly coupled between block 6 and guide rod 3, easy to disassemble, lower end of supporting plate 5 or so
Both sides are hingedly connected with flap 7, and bottom plate 1 and pressing plate 4 are respectively positioned between two flaps 7, and the lower end of flap 7 is connected with and managed
The clamping plate 8 of circular arc corresponding to road, and two relative end faces of clamping plate 8 are squeezed on pipeline.
The lower end of clamping plate 8 is connected with contiguous block 9, and two contiguous blocks 9 are located at the downside of pipeline, flap 7, clamping plate 8 and company
The structure that is formed in one between block 9 is connect, is easy to manufacture, it is also more solid, pass through bolt 10 between two contiguous blocks 9 and nut connects
Connect, spring 11 is uniformly provided between the lower end of pressing plate 4 and bottom plate 1, and the upper center of supporting plate 5 is plugged with threaded rod 12, spiral shell
It is rotatablely connected between the lower end of rasp bar 12 and pressing plate 4, is connected, be easy to by taper roll bearing between threaded rod 12 and pressing plate 4
Axially loaded, the upper end of threaded rod 12 are provided with spin-block 13.
The utility model is designed, and transducer 2 is placed on pipeline first, the clamping plate 8 of both sides is put down, passes through bolt 10 and spiral shell
Mother fixes two contiguous blocks 9, rotates spin-block 13, and threaded rod 12 moves down, and pressing plate 4 extrudes bottom plate 1 by spring 11, by bottom plate 1
Transducer 2 and tube contacts are driven, so, in the presence of spring 11, ensure that dynamics is not too large, also will not be too loose, have
Certain toughness, transducer 2 is protected well, also improves measurement result.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.