A kind of doppler transducer positioning fixtureTechnical field
The present invention relates to medical instruments field, specially a kind of doppler transducer positioning fixture.
Background technology
With increasing for cardiovascular and cerebrovascular diseases, healthcare givers is checked using doppler transducer to patient more.Doppler transducerArrangement have a variety of, wherein some doppler transducers are arranged in housing, housing is then fixed on installation site, visitedIn use, the outer casing end away from probe can produce weak vibrations to head, and can not only influence the normal of doppler transducer makesWith and being had an impact to the bonding strength of shell and installation site, or even occur that doppler transducer shell comes off generation.
The content of the invention
It is an object of the invention to provide a kind of doppler transducer positioning fixture, ensures that the connection of shell and installing plate is strongDegree, it is ensured that the normal use of doppler transducer.
To achieve these goals, the technical scheme used for：A kind of doppler transducer positioning fixture, including outer shieldLid and interior protecting cover, the outer protecting cover are fixed on a mounting board, and doppler transducer and interior shield are provided with the chamber of the interior protecting coverThe outer protecting cover length direction of cover rim moves, and is fixed with position-limited rack on installing plate, the position-limited rack includes two side and two side outer wallSpacing between face is consistent with the spacing between the internal face of outer protecting cover, and internal face of the two side respectively with outer protecting cover reclinesForm outer protecting cover and keep out cooperation in spacing on its wall direction.
Compared with prior art, technique effect of the invention is：Position-limited rack is directly fixed on installing plate, outer protecting cover lid is setOn position-limited rack, outer protecting cover is set only to pass through structure letter in movement perpendicular to its wall direction upper limit, so interior protecting coverSingle position-limited rack, avoid the outer protecting cover end away from probe from rocking, ensure the bonding strength of outer protecting cover and installing plate, it is ensured that interior shieldThe doppler transducer covered can be used reliably.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the structure enlargement diagram at M in Fig. 1；
Fig. 3 is the schematic diagram of the outer protecting cover of the present invention；
Fig. 4 is the schematic diagram that the position-limited rack of the present invention coordinates with rubber cushion；
Fig. 5 is the sectional view of the present invention.
Embodiment
It is described in further detail with reference to Fig. 1 to the 5 couples of present invention.
A kind of doppler transducer positioning fixture, including outer protecting cover 20 and interior protecting cover 30, the outer protecting cover 20 are fixed onDoppler transducer is provided with installing plate 1, in the chamber 31 of the interior protecting cover 30 and interior protecting cover 30 is along the outer length direction of protecting cover 20It is mobile, position-limited rack 10 is fixed with installing plate 1, the position-limited rack includes the spacing between two side 11 and the outside wall surface of two side 11Spacing between the internal face 21 of outer protecting cover 20 is consistent, and the two side 11 reclines structure with the internal face 21 of outer protecting cover 20 respectivelyInto outer protecting cover 20 cooperation is kept out in spacing on its wall direction.
In such scheme, position-limited rack 10 is directly fixed on installing plate 1, the outer lid of protecting cover 20 is located on position-limited rack 10, made outerProtecting cover 20 only need to pass through position-limited rack simple in construction perpendicular to its wall direction upper limit, so interior protecting cover 30 in movement10, avoid the end of outer protecting cover 20 away from probe from rocking, ensure the bonding strength of outer protecting cover 20 and installing plate 1, it is ensured that interior protecting coverDoppler transducer on 30 can be used reliably.
Chute 32 is disposed with the base of the interior protecting cover 30, sliver 22, the chute are disposed with the outer protecting cover 2032 make interior protecting cover 30 import or export outer protecting cover 20 with the cooperation of sliver 22.Facilitate doppler transducer in the guide direction of chute 32It is adjusted, interior protecting cover 30 is placed in outer protecting cover 20, and outward appearance is clean and tidy, stores up conveniently, prevents that doppler transducer from colliding with damage.
As the concrete structure of position-limited rack 10, the position-limited rack 10 also includes support body 12 in the form of slot, and two side 11 is splitIn the outside of cell wall 121 of support body 12, it is connected between cell wall 121 and side wall 11 by roof 123.Position-limited rack 10 is simple in construction, savesCost.
The back side of bottom land 122 of the support body 12 is pasted with rubber cushion 40, and the support body 12 is solid by rubber cushion 40 and installing plate 1Even.Directly arrangement rubber cushion 40 fixes position-limited rack 10 and installing plate 1, simple and convenient.
There is the section 124 that stretches protruded out along flute length direction on the bottom land 122 of the support body 12.Support body 12 can be increased with fixingThe fitting area of plate 1, while ensureing that position-limited rack 10 can be reliable and stable fixed, the material usage of support body 12 is reduced as far as possible,Reduce manufacturing cost.
The preferred embodiment of the present invention described in detail above, but the present invention is not limited in above-mentioned embodimentDetail, in the range of the technology design of the present invention, a variety of equivalents can be carried out to technical scheme, theseEquivalents belong to protection scope of the present invention.