CN1151757C - Hand supersonic tooth-cleaning set - Google Patents

Abstract

The present invention relates to a hand supersonic tooth-cleaning set with long service life, which belongs to a dentistry tooth cleaner for removing dental calculus, chimney spot and bacterial spot. A tooth-cleaning set in the prior art has the defects of short service life and difficult high temperature and pressure sterilization, and the present invention has a new internal and external nested structure. A transducer can be disassembled from or assembled on the tooth-cleaning set freely, an exposed component can be disinfected at high temperature and pressure freely, an amplitude transformer is a tubular body whose middle position is provided with a hole, the middle part of the tubular body is provided with an elastic rod and a screw thread section which is connected with an amplitude sleeve, the outer diameter of the elastic rod is less than the bottom diameter of the screw thread section, the elastic rod has enough length, and the rate of vibration amplitude and the length of the elastic rod is less than 1% when the elastic rod is vibrated. The present invention has the advantages of greatly prolonging service life, reducing set temperature, realizing one man once high-temperature and high-pressure disinfection, preventing the cross infection, and guaranteeing the personnel safety.

Description

Hand supersonic tooth-cleaning set

Technical field

The present invention relates to a kind of ultrasonic tooth device, more specifically to a kind of ultrasonic tooth mobile phone.

Background technology

Relying on mechanical vibration to produce ultrasound wave, to remove tartar, crock and bacterium class be the present dentistry very popular method that cleans one's teeth.It is the simplest wherein to make the mobile phone of vibration source with piezoelectric ceramics, accounts for the leading position of mobile phone.Except that the product of domestic several families, the product of market upper inlet France, the U.S. and Switzerland is also many at present.The user reflects that generally the service life of domestic mobile phone is too short, the mobile phone temperature rise.Have more typically in the prior art that application number is 91101403.9, name is called the Chinese invention patent of " ultrasonic cavitron ".This patent of invention discloses a kind of stable performance, the ultrasonic transducer that the life-span is long a times than prior art, and it is to send out prior art maximally related with this.As the described transducer of its claim 2 is exactly usually alleged ultrasonic tooth mobile phone.Comprise: compositions such as horn, circular overarm, pole piece, piezoelectric ceramics and luffing cover.This patent of invention description page 5 point out " horn 14 is pipes of a hollow; its right-hand member is shaped on screw thread; ... with being threaded luffing cover 13 is linked on the horn, threaded together is pressed on above-mentioned each part between the end face of the boss of horn and luffing cover." shown in its accompanying drawing 1.Except that the foregoing invention patent, its mobile phone of the import ultrasonic tooth device of selling on the China market adopts and the essentially identical structure of foregoing invention patent.This class horn is all had something in common with the structure that luffing cover front and back are threaded: the internal diameter of thin bar screw thread is less than the external diameter at non-threaded place, when tightening horn and luffing cover, and under the situation of excited vibration, the tensile stress at bottom diameter place is greater than the tensile stress at non-threaded place.The principle of ultrasonic tooth mobile phone is to want to spur horn (to claim: elastic rod) with the thin bar that the luffing cover is connected, but for above-mentioned reasons, what spur can only be that some axial length of bottom diameter, non-threaded thin bar is pulled hardly, in case ultrasonic cavitron offers the power of mobile phone when becoming big than its amplitude of ambassador, the strain meeting at screw thread place surpasses yield point, cause permanent lengthening deformation, the change of original prestressing force parameter can make the resonance of mobile phone destroyed, mobile phone can not have been worked naturally again, accuracy of screw machining not Gao Genghui impels above-mentioned phenomenon, and severe patient causes screw thread to pull, even fracture.In addition, under the situation of supersonic frequency section vibration, anti-the leaking on technology of horn and luffing external threading junction also is a stubborn problem.Problems of the prior art in sum, first: the plastic deformation that internal thread broaching occurs, even fracture.Second: anti-the leaking of horn and luffing external threading junction.The 3rd: tooth cleaning hand piece and its outer cable in application number 91101403.9 patents of invention and the present home products are incorporate, and this structure can not adopt High Temperature High Pressure (saturated vapor) sterilization.Tooth cleaning hand piece and its outer cable of products such as France, Switzerland are connected as a single entity by pluggable adapter, tooth cleaning hand piece is autoclave sterilization separately, is a problem but whether the O type rubber ring of tooth cleaning hand piece inside, piezoelectric ceramics etc. can bear several ten thousand times autoclave sterilization.Although adopt the piezoelectric ceramics of high-curie temperature point, hot environment lower piezoelectric effect can progressively fail.In a single day the sealing of O type rubber ring leaks under the high temperature and high pressure environment, and the maintenance of tooth cleaning hand piece is not easy.See from the configuration of the present tooth cleaning hand piece of machine that cleans one's teeth in addition and will accomplish that autoclave sterilization of a people obviously is difficult, the configuration of many tooth cleaning hand pieces is again expensive.

Summary of the invention

At the defective that exists in the prior art, the object of the present invention is to provide a kind of hand supersonic tooth-cleaning set of new construction, above-mentioned shortcoming is made improvements, make it easy dismounting, can carry out disinfection to exposed part easily, prevent cross infection, guarantee personal safety.

To achieve these goals, tooth cleaning hand piece of the present invention comprises: working head, with by insulation sleeve, piezoelectric ceramics, pole piece, horn, the luffing cover, O type cushion seal circle, hose, lead, fixed mount, transducer enclosure, the transducer that outer cable constitutes, it is characterized in that: also be provided with waveguide on the mobile phone, phone housing, O RunddichtringO and adapter sleeve, said waveguide is connected on the bolt of transducer front end, the front end of waveguide is connected with working head, the O RunddichtringO is enclosed within on the waveguide, boss by the phone housing front end is spacing, transducer is sealed in the phone housing, adapter sleeve is arranged on the rear end of phone housing, phone housing connects into tooth cleaning hand piece by adapter sleeve and transducer, and said transducer can be arbitrarily from tooth cleaning hand piece dismounting or installation.The movement that is made of transducer insulation sleeve, piezoelectric ceramics, pole piece, horn, luffing cover, lead is arranged in the transducer enclosure, it is characterized in that described horn is middle perforated pipe shape body, the one end is connected with waveguide 2, the other end is connected with hose, there are a boss, elastic rod in the front portion and are connected the thread segment that luffing is applied mechanically, the external diameter of elastic rod is less than the bottom diameter of thread segment, and elastic rod has enough length, the amplitude when making its vibration and the length ratio of elastic rod guarantee to be operated in the elastic region of material less than 1%.

The advantage of the invention described above is that described tooth cleaning hand piece is easy to the transducer of inside is pulled down, working head, waveguide, phone housing, O RunddichtringO, these parts that expose of adapter sleeve are autoclave sterilization unscrupulously, because the cheapness of above-mentioned parts, can accomplish that a machine of cleaning one's teeth overlaps configuration of components more, realize autoclave sterilization of a people, to preventing cross infection, guarantee personal safety, its effect is conspicuous.The transducer movement that is made of insulation sleeve, piezoelectric ceramics, pole piece, horn, luffing cover, lead is an inside and outside suit, seamless new construction, makes that the anti-seepy question under the supersonic vibration situation has not existed; In addition, its external diameter of the elastic rod of horn is less than the bottom diameter of thread segment 18, make the tensile stress of elastic rod become maximum, and be dispersed in whole elastic rod section, during excited vibration, be that elastic rod is in vibration, the vibration of screw thread is much smaller, has solved the problem that screw thread place stress is excessive and pull screw thread, because of elastic rod has enough length, the amplitude when making its vibration and the length ratio of elastic rod guarantee to be operated in the elastic region of material less than 1%.Cause working life greatly to improve, the mobile phone temperature rise reduces.

Description of drawings

Accompanying drawing is the structure chart of hand supersonic tooth-cleaning set.

The specific embodiment

Introduce embodiments of the invention below in conjunction with accompanying drawing, wherein constitute transducer movement of the present invention by horn 8, four piezoelectric ceramics 6, insulation sleeve 5, luffing cover 9, lead 12 and five pole pieces 7.Insulation sleeve 5 is enclosed within on the elastic rod 19 of horn 8, and pyrocondensation packs tightly, pole piece 7 and piezoelectric ceramics 6 are inserted in successively boss 20 places of horn, screw in luffing cover 9, pole piece and piezoelectric ceramics are pressed between the end face of the boss 20 of horn and luffing cover 9, pole piece connects lead piezoelectric ceramics is connected into form in parallel, and draw lead 12, regulate the tightness of horn 8 and luffing cover 9, to obtain appropriate pre _ stress parameter and resonant frequency, O RunddichtringO 10 is enclosed within the rear portion of luffing cover 9, the movement that assembles is packed in the transducer enclosure 14, adjust fixed mount 13 movement is compressed, the end of horn 8 connects hose 11, and hose 11 and lead 12 are merged into outer cable 16 draw, the transducer assembling finishes.The thick axle that O RunddichtringO 4 is enclosed within waveguide 2 is gone up and is pushed in the phone housing 3, waveguide 2 is put in place, transducer is inserted in the phone housing 3, block flat mouthful of 17 places at transducer enclosure 14 rear portions with small wrench, the phone housing 3 that turns clockwise makes the bolt 21 of transducer screw with waveguide 2, adapter sleeve 15 is inserted in phone housing 3 from the front and screws clockwise, again working head 1 is screwed on the waveguide 2 that exposes clockwise with transducer enclosure 14 rear portions.Back out earlier adapter sleeve 15 during dismounting counterclockwise, flat mouthful of 17 places blocking transducer enclosure 14 rear portions with small wrench are rotated counterclockwise phone housing 3 and transducer can be taken out.Outer cable 16 is connected on the ultrasonic cavitron, provides power and cooling water by ultrasonic cavitron, the work that can clean one's teeth.Above embodiment describes principle design of the present invention, technical characterictic and embodiment in detail, and the those skilled in the art can design other example that is equal in fact with embodiment in view of the above.For example: waveguide 2 and horn 8 are made non-removable integrative-structure, and cancellation transducer enclosure 14 becomes non-removable tooth cleaning hand piece; Perhaps still adopt the structure that is threaded before and after horn, the luffing cover, but the structure of horn and the present invention are basic identical; Or shell improves, and the fixing means of movement is different or the like, and these variations and fail to break away from substantive distinguishing features of the present invention, thereby also must fall within the scope of claim protection of the present invention.

Claims (2)

1. hand supersonic tooth-cleaning set, comprise: working head (1) and by insulation sleeve (5), piezoelectric ceramics (6), pole piece (7), horn (8), luffing cover (9), 0 RunddichtringO (10), hose (11), lead (12), fixed mount (13), transducer enclosure (14), the transducer that outer cable (16) constitutes, it is characterized in that: also be provided with waveguide (2) on the mobile phone, phone housing (3), O RunddichtringO (4) and adapter sleeve (15), said waveguide (2) is connected on the bolt (21) of transducer front end, the front end of waveguide is connected with working head (1), O RunddichtringO (4) is enclosed within on the waveguide (2), boss by the phone housing front end is spacing, transducer is sealed in the phone housing (3), adapter sleeve (15) is arranged on the rear end of phone housing, phone housing connects into tooth cleaning hand piece by adapter sleeve (15) and transducer, and said transducer can be arbitrarily from tooth cleaning hand piece dismounting or installation.

2. according to the described hand supersonic tooth-cleaning set of claim 1, it is characterized in that: by insulation sleeve (5), piezoelectric ceramics (6), pole piece (7), horn (8), luffing cover (9), the transducer movement that lead (12) constitutes is arranged in the transducer enclosure (14), said horn (8) is middle perforated pipe shape body, the one end is connected with waveguide (2), the other end is connected with hose (11), there is a boss (20) front portion, elastic rod (19) and the thread segment (18) that is connected luffing cover (9) usefulness, the external diameter of elastic rod is less than the bottom diameter of thread segment.

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