A kind of medical inflator
Technical field
This utility model relates to field of medical appliances, particularly the medical inflator of one.
Background technology
In modern medical service, being expanded human body or tube chamber by expansion apparatus is one of a kind of commonplace therapeutic modality.In expansion process, in order to ensure to treat safety, often need one can the apparatus of supercharging or pressure release.Therefore many medical inflators have been there is.
Existing medical inflator, complex structure, operates easy not.Particularly when needs Quick-pressurizing, due to design defect own, high pressure cannot be pressurized to.And also cannot quick pressure releasing.Thus impact treatment therapeutic effect.Who is when carrying out vascular interventional treatment especially, has very high requirement, if cannot accomplish that Quick-pressurizing can affect treatment greatly to pumping rate.Meanwhile, the labyrinth of medical inflator, not only increases the probability that production cost also improves product bug generation.
Meanwhile, the pressure-display device of existing medical inflator, can not allow user understand current force value more intuitively.And the display of pressure value is accurate not.
Utility model content
The purpose of this utility model is to provide one can realize Quick-pressurizing, pressure release, easy to adjust and control accurate medical inflator.
The technical scheme realizing this utility model object is: this utility model has piston apparatus, grips housing, from lock release and bobbin; Described piston apparatus comprises push rod and piston head; Described being arranged on from lock release grips in housing; Described piston head is connected to the front end of push rod; The front end of described push rod is through the inside stretching into bobbin from lock release gripping housing and grip in housing; The inwall close fit of described piston head and bobbin; Described bobbin is fixedly connected on and grips on housing; Described push rod coordinates with from lock release; Described bobbin is provided with the test link that be communicated with inner with it; Described test link is fixed with pressure digital display device.
Above-mentioned push rod comprises integrated front end connecting portion from front to back successively, regulates threaded portion and rear end handle part, and piston head is connected to the front end of front end connecting portion; Described gripping housing comprises the upper half-shell and housing lower half that attach together together; Described gripping housing be provided with for push rod pass walk hole and plectrum hole; The inside of described housing lower half is provided with slides tank, and slide in tank and be provided with two fixed legs extended to upper half-shell, the rear end of sliding tank is provided with spacing catch; Describedly comprise locking member, release member and back-moving spring from lock release; Described locking member comprises the first latch segment and the second latch segment; The two ends of described first latch segment and the second latch segment are all arranged with projection; Described first latch segment and the second latch segment are equipped with two limiting through hole corresponding with fixed leg; Described first latch segment and the second latch segment are equipped with screw thread half bore; The screw thread half bore of described first latch segment and the screw thread half bore of the second latch segment are spliced to form and the screwed hole regulating threaded portion to coordinate; Described release member comprises framework, plectrum and transition piece; Described framework comprises two symmetrically arranged side plates and the base plate being connected two side plates; Described both sides side plate is arranged with release aperture group, and base plate is provided with the through hole passed for push rod; One end of described transition piece is fixedly connected on the side plate of side, and the other end is fixedly connected with plectrum; Described framework is slidably arranged in and slides in tank, and back-moving spring is arranged between the base plate of framework and spacing catch; Described release aperture group comprises two elongated holes, and one end of elongated hole is gathered to back-moving spring compression direction, and the other end is separated from each other; Described plectrum stretches out from the plectrum hole gripping housing; The projection of described first latch segment and the second latch segment is arranged in the release aperture group of framework; Described first latch segment and the second latch segment are oppositely arranged, and fixed leg is through the limiting through hole of the first latch segment and the second latch segment, and the relative locking member of framework slides sliding in tank; The adjustment threaded portion of described push rod is from passing between the first latch segment and the second latch segment and coordinating with the screwed hole be spliced to form by screw thread half bore.
Above-mentioned housing lower half slides in tank and is provided with second tank; Described fixed leg extends from the bottom of second tank to upper half-shell; The inside of described upper half-shell is provided with first tank with second tank corresponding matching; The bottom surface of first tank described is provided with two and clamps hole with fixed leg to what be applied to fixing fixed leg; Described first latch segment is sleeved on after on fixed leg and is positioned at first tank; Described second latch segment is sleeved on after on fixed leg and is positioned at second tank; First tank described and second tank are all between the both sides side plate of framework.
Above-mentioned second latch segment is provided with two with the symmetrically arranged positive stop of screw thread half bore; Described positive stop extends to the first latch segment; Described positive stop is positioned at the second latch segment on the end face of back-moving spring; Second tank described is provided with near the trough rim of back-moving spring the groove coordinated with positive stop.
Above-mentioned digital display device comprises housing, circuit board and energising control structure; Described energising control structure comprises shell fragment and isolated sheet; Described housing is provided with spacing hole; Described circuit board is provided with the first contact and the second contact; One end of described shell fragment is fixedly connected on the first contact, and the other end and the second contact are energized; One end of described isolated sheet is between the second contact and the other end of shell fragment, and the other end of isolated sheet stretches out from the spacing hole of housing.
Above-mentioned isolated sheet comprises isolation part and control part; One end and the isolation part of described control part link into an integrated entity, and the other end stretches out spacing hole; The limited hole of described isolation part is spacing in housing, and isolation part is between the second contact and the other end of shell fragment.
Above-mentioned shell fragment comprises connecting portion, contact site and guide portion; Described connecting portion is fixedly connected with the first contact, and contact site and the second contact are energized; Described contact site and connecting portion are linked into an integrated entity by guide portion; Form angle between described guide portion and the second contact and guide portion to spacing hole direction gradually away from the second contact.
Above-mentioned piston head comprises cock body, sealing ring and card holding trough; The front end of described front end connecting portion is provided with contiguous block; Described sealing ring is fixedly installed on the periphery of cock body; The rear end face of described cock body is provided with the card holding trough coordinated with contiguous block; It is coaxial with push rod that described contiguous block is installed on cock body after in card holding trough.
The rear end face of above-mentioned cock body offers notch; Described notch is provided with and is arranged with two fixture blocks extended to cock body axis radial direction; Described notch and fixture block form card holding trough; Gap between described fixture block and fixture block is greater than the diameter of push rod front end connecting portion.
Above-mentioned rear end handle part is not provided with grips with the one end regulating threaded portion to be connected; The outer surface of described grips is provided with multiple anti-skidding convex stupefied with push rod axis being parallel; The outer surface of described grips is also provided with anti-skidding convex stupefied with the ring-type of push rod axes normal.
This utility model has positive effect: (1) this utility model is by realizing locking member and the disengaging regulating threaded portion from lock release with coordinating of gripping housing, thus manually realize the effect of drawing liquid or evacuation fast, simultaneously also can quick fluid-discharge or let out vacuum fast, convenient and swift; (2) this utility model can be realized pressure release among a small circle by the cooperation of locking member and adjustment threaded portion or be taken out negative pressure, controls accurately; (3) of the present utility model exquisite from lock release structural design, Stability Analysis of Structures, can effectively ensure to use degree of stability; (4) this utility model structure member is few, fast easy to assembly; (5) in this utility model, first tank and second tank can allow the range of movement of locking member controlled and stable; (6) this utility model can ensure between the first latch segment and the second latch segment by the positive stop on the second latch segment relative position further, thus reduces the accuracy of manufacture, reduces production cost; (7) front end connecting portion and the disengaging regulating the annular stop shoulder block of junction, threaded portion effectively can prevent piston head in this utility model; (8) digital display device of the present utility model is more directly perceived by pressure data, and controls more accurate; (9) energising control structure of the present utility model can control energising and the power-off of digital display device, efficient energy-saving; (10) in this utility model, the design of shell fragment can allow isolated sheet insert more easily between shell fragment and the second contact and form power-off; (11) in this utility model, push rod and piston head are combined together by the mode of draw-in groove and contiguous block, assemble quick and convenient, and result of use is good; (12) the anti-skidding convex stupefied skidding effectively preventing rotating or pull out when pushing away in this utility model in grips.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, this utility model is described in further detail, wherein
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the housing lower half gripping housing in this utility model;
Fig. 3 is the scheme of installation from lock release in this utility model;
Fig. 4 is the assembling schematic diagram of locking member and release member in this utility model;
Fig. 5 is the structural representation of locking member in this utility model;
Fig. 6 is the structural representation of release member in this utility model;
Fig. 7 is the structural representation of piston apparatus in this utility model;
Fig. 8 is the structural representation of piston head in this utility model;
Fig. 9 is the structural representation of this utility model middle bobbin and digital display device;
Figure 10 is the structural representation of control structure of being energized in this utility model;
Figure 11 is the sectional view of digital display device in this utility model;
Figure 12 is the structural representation of grips in this utility model.
Detailed description of the invention
See Fig. 1 to Figure 12, this utility model has piston apparatus 1, grips housing 2, from lock release 3 and bobbin 4; It is characterized in that: described piston apparatus 1 comprises push rod 11 and piston head 12; Described being arranged on from lock release 3 grips in housing 2; Described piston head 12 is connected to the front end of push rod 11; The front end of described push rod 11 is through the inside stretching into bobbin 4 from lock release 3 gripping housing 2 and grip in housing 2; The inwall close fit of described piston head 12 and bobbin 4; Described bobbin 4 is fixedly connected on and grips on housing 2; Described push rod 11 coordinates with from lock release 3; Described bobbin 4 is provided with the test link 41 that be communicated with inner with it; Described test link 41 is fixed with pressure digital display device 5.
Described push rod 11 comprises integrated front end connecting portion 111 from front to back successively, regulates threaded portion 112 and rear end handle part 113, and piston head 12 is connected to the front end of front end connecting portion 111; Described gripping housing 2 comprises the upper half-shell 21 and housing lower half 22 that attach together together; Described gripping housing 2 be provided with for push rod 11 pass walk hole and plectrum hole; The inside of described housing lower half 22 is provided with slides tank 221, described in slide in tank 221 and be provided with second tank 224; The bottom of second tank 224 described is provided with two fixed legs 222 extended to upper half-shell 21; The inside of described upper half-shell 21 is provided with first tank with second tank 224 corresponding matching; The bottom surface of first tank described is provided with two and clamps hole with fixed leg 222 to what be applied to fixing fixed leg 222; Described rear end of sliding tank 221 is provided with spacing catch 223; Describedly comprise locking member 31, release member 32 and back-moving spring 33 from lock release 3; Described locking member 31 comprises the first latch segment 311 and the second latch segment 312; The two ends of described first latch segment 311 and the second latch segment 312 are all arranged with projection; Described first latch segment 311 and the second latch segment 312 are equipped with two limiting through hole corresponding with fixed leg 222; Described first latch segment 311 and the second latch segment 312 are equipped with screw thread half bore; The screw thread half bore of described first latch segment 311 and the screw thread half bore of the second latch segment 312 are spliced to form and the screwed hole regulating threaded portion 112 to coordinate; Described release member 32 comprises framework 321, plectrum 322 and transition piece 323; Described framework 321 comprises two symmetrically arranged side plate 321-1 and the base plate 321-2 being connected two side plates; Described both sides side plate 321-1 is arranged with release aperture group 321-3, and base plate 321-2 is provided with the through hole 321-4 passed for push rod 11; One end of described transition piece 323 is fixedly connected on the side plate 321-1 of side, and the other end is fixedly connected with plectrum 322; Described framework 321 is slidably arranged in and slides in tank 221, and back-moving spring 33 is arranged between the base plate 321-2 of framework 321 and spacing catch 223; Described release aperture group 321-3 comprises two elongated holes, and one end of elongated hole is gathered to back-moving spring 33 compression direction, and the other end is separated from each other; Described plectrum 322 stretches out from the plectrum hole gripping housing 2; The projection of described first latch segment 311 and the second latch segment 312 is arranged in the release aperture group 321-3 of framework 321; Described first latch segment 311 and the second latch segment 312 are oppositely arranged, fixed leg 222 through the limiting through hole of the first latch segment 311 and the second latch segment 312, framework 321 relatively locking member 31 sliding slip tank 221 in; The adjustment threaded portion 112 of described push rod 11 is from passing between the first latch segment 311 and the second latch segment 312 and coordinating with the screwed hole be spliced to form by screw thread half bore.
Described first latch segment 311 is sleeved on after on fixed leg 222 and is positioned at first tank; Described second latch segment 312 is sleeved on after on fixed leg 222 and is positioned at second tank 224; First tank described and second tank 224 are all between the both sides side plate 321-1 of framework 321.
Described second latch segment 312 is provided with two with the symmetrically arranged positive stop 312-1 of screw thread half bore; Described positive stop 312-1 extends to the first latch segment 311; Described positive stop 312-1 is positioned at the second latch segment 312 on the end face of back-moving spring 33; Second tank 224 described is provided with near the trough rim of back-moving spring 33 groove coordinated with positive stop 312-1.
Described digital display device 5 comprises housing 51, circuit board 52 and energising control structure 53; Described energising control structure 53 comprises shell fragment 531 and isolated sheet 532; Described housing 51 is provided with spacing hole; Described circuit board 52 is provided with the first contact 521 and the second contact 522; One end of described shell fragment 531 is fixedly connected on the first contact 521, and the other end contacts with the second contact 522 and is energized; Described isolated sheet 532 comprises isolation part 532-1 and control part 532-2; One end and the isolation part 532-1 of described control part 532-2 link into an integrated entity, and the other end stretches out spacing hole; The limited hole of described isolation part 532-1 is spacing in housing 51, and isolation part 532-1 is positioned between the other end of the second contact 522 and shell fragment (531).
Described shell fragment 531 comprises connecting portion 531-1, contact site 531-2 and guide portion 531-3; Described connecting portion 531-1 is fixedly connected with the first contact 521, and contact site 531-2 contacts with the second contact 522 and is energized; Described contact site 531-2 and connecting portion 531-1 is linked into an integrated entity by guide portion 531-3; Form angle between described guide portion 531-3 and the second contact 522 and guide portion 531-3 to spacing hole direction gradually away from the second contact 522.
Described piston head 12 comprises cock body 121, sealing ring 122 and card holding trough 123; The front end of described front end connecting portion 111 is provided with contiguous block 114; Described sealing ring 122 is fixedly installed on the periphery of cock body 121; The rear end face of described cock body 121 offers notch 123-1; Described notch 123-1 is provided with and is arranged with two fixture block 123-2 extended to cock body axis radial direction; Described notch 123-1 and fixture block 123-2 forms card holding trough 123; Gap between described fixture block 123-2 and fixture block 123-2 is greater than the diameter of push rod 11 front end connecting portion 111; It is coaxial with push rod 11 that described contiguous block 114 is installed on cock body 121 after in card holding trough 123.
Described rear end handle part 113 is not provided with grips 115 with the one end regulating threaded portion 112 to be connected; The outer surface of described grips 115 is provided with anti-skidding convex stupefied 115-1 that is multiple and push rod axis being parallel; The outer surface of described grips 115 is also provided with the anti-skidding convex stupefied 115-2 with the ring-type of push rod axes normal.
When the framework 321 of release member 32 to overcome spring 33 times by plectrum 322 after during end motion, locking member 31 is under fixed leg 222 position-limiting action, release displacement to release aperture group 321-3 is moved, thus the first latch segment 311 is separated with the second latch segment 312 and departs from adjustment threaded portion 112, thus remove the locking effect of locking member 31, manually can realize Quick-pressurizing and pressure release.Meanwhile, by the control part 532-2 of isolated sheet 532 to the effect of isolated sheet 532, control the switching on and shutting down of digital display device 5.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to this utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.