Ultrasonic knife transducer

Abstract

The utility model discloses an ultrasonic knife transducer, which is characterized in that a fixing mechanism is arranged at the tail end of an ultrasonic amplitude-change pole on one side of the ultrasonic knife transducer, a clamping sleeve and the ultrasonic amplitude-change pole are screwed in a threaded manner to realize tightening type locking, and a pressing part with a conical inclined surface is arranged in the clamping sleeve. According to the blade fixing mechanism, the threaded locking mode of the clamping sleeve and the ultrasonic amplitude-change pole is matched with the pressing mode of the conical inclined face, transverse pressing force and longitudinal anti-disengagement force are formed on the blade clamping device, the blade clamping device can be clamped stably, and therefore the blade can be clamped stably. The structure is simple, parts are mutually locked, transmission loss of sound wave amplitude cannot be caused, and the cutting efficiency of the tail end of the blade can be higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic knife transducer technical field especially relates to an ultrasonic knife transducer. BACKGROUND

[0002] The ultrasonic knife has been widely used in medical and civilian fields at present, and realizes the effect of cutting iron like clay by the principle of high frequency amplitude cooperating with the blade, the ultrasonic knife is generally composed of a generator, a transducer and a blade, the sound wave generated by the generator is transmitted to the blade through the transducer and then acts on the target object, and part of the products also integrate the generator and the transducer, in the portable ultrasonic knife product, in order to pursue small and convenient, the generator and the transducer adopt coaxial line assembly, and the blade is fixed on the ultrasonic amplitude lever at the end of the transducer through the blade fixing mechanism, and the existing blade fixing mechanism (for reference CN219006257U) currently, most of them include a blade holder and a fixing screw, the blade is inserted into the clamping groove of the blade holder, then a screw hole is formed on one side of the ultrasonic amplitude lever, the blade holder is inserted into the insertion hole of the ultrasonic amplitude lever, and finally the blade holder is fixed and locked from the side through the fixing screw, if the blade needs to be clamped tightly, at least two fixing screws are needed to lock from the two ends of the blade holder respectively, and the locking is only transverse locking, the blade holder lacking longitudinal locking is easy to come out when the blade is pulled longitudinally, in addition, too many components of the structure also cause a large loss of sound wave amplitude transmission, thereby affecting the cutting efficiency of the end blade. SUMMARY

[0003] In order to overcome the defects of the prior art, the purpose of the utility model is to provide an ultrasonic knife transducer to solve the technical problems mentioned in the background art.

[0004] In order to solve the technical problems, the utility model adopts the following technical scheme:

[0005] An ultrasonic knife transducer, comprising a transducer main body and an ultrasonic amplitude lever located on one side of the transducer main body, one side of the ultrasonic amplitude lever is provided with a fixing mechanism for fixing the blade, the fixing mechanism comprises a blade holder and a clamping sleeve, the blade holder is arranged at the end of the ultrasonic amplitude lever and recessed to form a blade clamping groove, the clamping sleeve comprises a pressing part and a sleeve part, one side of the pressing part is provided with a blade hole for the blade to pass out, the sleeve part is sleeved with the ultrasonic amplitude lever, and the pressing part can press the blade holder after being sleeved with the sleeve part.

[0006] Specifically, the sleeve part has an internal thread, the ultrasonic wave horn has an external thread, the sleeve part is screwed with the ultrasonic wave horn through the internal thread and the external thread, and the pressing part has a first tapered surface, which gradually presses the blade holder laterally during the screwing of the sleeve part with the ultrasonic wave horn.

[0007] Specifically, the blade holder is provided with a second tapered surface on the side corresponding to the position of the first tapered surface.

[0008] Specifically, the second tapered surface has the same taper as the first tapered surface.

[0009] Specifically, the blade holder is integrally formed with the ultrasonic wave horn.

[0010] Specifically, the blade holder is separately arranged with the ultrasonic wave horn, the blade holder has a clamping part and a plug-in part, the end of the ultrasonic wave horn is provided with a plug-in hole, the plug-in part is inserted into the plug-in hole, and the blade holding groove and the second tapered surface are both located on one side of the clamping part.

[0011] Specifically, one side of the clamping sleeve is provided with a wrench clamping surface.

[0012] An ultrasonic knife has a detachably matched main machine and a cover, the main machine is provided with the ultrasonic knife transducer, one side of the cover is provided with a wrench clamping groove, the wrench clamping groove is matched with the wrench clamping surface groove to realize locking or opening of the clamping sleeve through the cover.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a fixing mechanism is arranged at the end of the ultrasonic wave horn on one side of the ultrasonic knife transducer, and the clamping sleeve and the ultrasonic wave horn are screwed to realize screw locking, the clamping sleeve is internally provided with a tapered pressing part, the blade holder can be axially or laterally pressed when the clamping sleeve is locked, so that the blade is stably clamped, the clamping sleeve and the ultrasonic wave horn are screwed to realize the cooperation of the tapered pressing part, the blade holder is formed with lateral pressing force and longitudinal anti-disengagement force, the end blade does not loosen no matter which direction is cut or inserted, the structure is simple, and the parts are mutually locked, so that the transmission loss of the sound wave amplitude is avoided, and the cutting efficiency of the end blade is higher. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 : it is one of the utility model patent transducer overall structure assembly drawing;

[0016] Figure 2 : the second patent utility model transducer overall structure assembly drawing;

[0017] Figure 3 : the patent utility model transducer overall structure front view;

[0018] Figure 4 : the patent utility model transducer overall structure is exploded Figure 3 middle B-B section view;

[0019] Figure 5 : the patent utility model transducer overall structure is exploded Figure 1 ;

[0020] Figure 6 : the patent utility model transducer overall structure is exploded Figure 2 ;

[0021] Figure 7 : the patent utility model ultrasonic knife overall structure exploded view;

[0022] In the figure: transducer main body 1, ultrasonic wave amplitude rod 2, fixed mechanism 10A, blade holder 3, clamping sleeve 4, blade clamping groove 301, compression part 41, sleeve joint 42, blade hole 401, internal thread 402, external thread 201, first tapered inclined surface 411, second tapered inclined surface 302, clamping part 31, plug-in part 32, plug-in hole 202, wrench clamping surface 403, ultrasonic knife 50, main machine 51, machine cover 52, wrench clamping groove 521, blade 6. Specific embodiments

[0023] Next, the utility model is further described in combination with the drawings and specific embodiments, and it should be explained that, under the premise of not conflicting, the following described each embodiment or each technical feature between or between can be arbitrarily combined to form new embodiment.

[0024] Reference Figures 1 to 7 :

[0025] The embodiment discloses an ultrasonic knife transducer, which comprises a transducer body 1 and an ultrasonic horn 2 located at one side of the transducer body 1. The ultrasonic horn 2 extends and transmits the sound wave amplitude from the generator and the transducer body 1 to the end blade 6, so as to cut the target object. In order to fix the blade 6, a fixing mechanism 10A for fixing the blade 6 is arranged at one side of the ultrasonic horn 2. The fixing mechanism 10A comprises a blade holder 3 and a clamping sleeve 4. The blade holder 3 is arranged at the end of the ultrasonic horn 2 and is recessed to form a blade clamping groove 301. The blade 6 is inserted into the blade clamping groove 301 and is finally locked by the clamping sleeve 4. Here, the clamping sleeve 4 comprises a pressing part 41 and a sleeve part 42. One side of the pressing part 41 is provided with a blade hole 401 for the blade 6 to pass through. The sleeve part 42 is sleeved with the ultrasonic horn 2 through screwing. The pressing part 41 can press the blade holder 3 after the sleeve part 42 is sleeved. Preferably, the diameter of the blade hole 401 is smaller than the diameter of the sleeve of the sleeve part 42 and also smaller than the diameter of the widest part of the blade holder 3. Since the clamping sleeve 4 is longitudinally sleeved and is screwed tightly, and the clamping sleeve 4 also has the pressing part 41, the pressing part 41 gives the blade holder 3 a pressing force from the transverse direction. The screwing of the clamping sleeve 4 and the diameter of the blade hole 401 which is smaller than the diameter of the widest part of the blade holder 3 give the blade holder 3 a longitudinal locking force. Or the diameter of the pressing part 41 is smaller than the diameter of the widest part of the blade holder 3. When the clamping sleeve 4 is screwed inward, the blade holder 3 can be pressed inward, so that the blade holder 3 is fully locked in the longitudinal direction or the transverse direction.

[0026] It should be noted that some ultrasonic knife products integrate the generator and the transducer into one. Here, the transducer refers to a kind of ultrasonic wave generating or producing vibration, transmitting and fixing blade component (preferably, the piezoelectric ceramic is excited by current to generate mechanical vibration to form ultrasonic amplitude) in the ultrasonic knife, and is not limited to this.

[0027] Specifically, as an optional embodiment, the sleeve part 42 has an internal thread 402. The outer side of the ultrasonic horn 2 is provided with an external thread 201 near the outer tube of the blade holder 3. The sleeve part 42 is screwed with the ultrasonic horn 2 through the internal thread 402 and the external thread 201. The pressing part 41 has a first tapered inclined surface 411. The first tapered inclined surface 411 gradually presses the blade holder 3 transversely in the process of screwing the sleeve part 42 with the ultrasonic horn 2. Taking the length direction of the blade holder 3 as the longitudinal direction, the pressing of the first tapered inclined surface 411 is oblique force pressing or transverse horizontal force pressing, so that the blade clamping groove 301 is also clamped.

[0028] Specifically, as an optional embodiment, the outer side of the blade holder 3 corresponding to the position of the first tapered slope 411 is provided with a second tapered slope 302, preferably, the second tapered slope 302 has the same taper as the first tapered slope 411, or the same slope, during the tightening process of the clamping sleeve 4 from outside to inside, due to the inward convergence of the first tapered slope 411, with the help of the tightening force of the screw thread, the first tapered slope 411 will gradually stick to the second tapered slope 302, and with the increase of the force, the blade holder 3 will be finally locked on the ultrasonic amplitude rod 2, at the same time, the longitudinal and transverse locking force will be brought, and finally the blade 6 will be completely locked, only the tool part is exposed from the blade hole 401, and the blade body is fixed in the blade clamping groove 301, when the blade 6 needs to be replaced, the clamping sleeve 4 is loosened in the opposite direction, the first tapered slope 411 is separated from the second tapered slope 302, and the blade holder 3 is loosened and the blade 6 can be pulled out, then the new blade 6 is inserted, and the clamping sleeve 4 is sleeved.

[0029] Specifically, as an optional embodiment, the blade holder 3 is integrally formed with the ultrasonic amplitude rod 2, which is made into an integrated setting, reducing the number of parts, and the loss of sound wave amplitude transmission process will also be reduced.

[0030] Specifically, as an optional embodiment, in order to replace different types of blade groups later, the blade holder 3 is separately provided with the ultrasonic amplitude rod 2, the blade holder 3 has a clamping part 31 and a plug-in part 32, the end of the ultrasonic amplitude rod 2 is provided with a plug-in hole 202, the plug-in part 32 is inserted into the plug-in hole 202, the blade clamping groove 301 and the second tapered slope 302 are located on one side of the clamping part 31, when different blade groups need to be replaced, the blade holder 3 is only pulled out from the plug-in hole 202, and then the blade holder of the new blade group can be replaced, and the plug-in part 32 of the blade holder 3 adopts the form of plug-in rod, the diameter of the plug-in rod adopts modular setting, so that the blade holder 3 corresponding to the blade 6 group of any size can be inserted and locked.

[0031] Specifically, as an optional embodiment, in the traditional fixed screw locking fixing mechanism 10A, a screwdriver is needed to replace the blade 6, and in this patent, for cutting some materials with low hardness such as plastic, the locking force of the blade 6 is low, which can be realized by hand-tightening the clamping sleeve 4, but for cutting some hard target objects, a tool such as a wrench is needed to lock the clamping sleeve 4, here, in order to cooperate with the tool tightening and loosening, one side of the clamping sleeve 4 is provided with a wrench clamping surface 403, the cutting surface of the wrench clamping surface 403 can adopt a hexagonal surface such as a hexagonal wrench, or a symmetrical setting.

[0032] ReferenceFigure 7 The utility model discloses still disclose a kind of ultrasonic knives 50, the ultrasonic knives 50 have detachable cooperation host 51 and machine cover 52, one side of the machine cover 52 is equipped with spanner clamping groove 521, spanner clamping groove 521 and spanner clamping face 403 slot type cooperation, to realize by machine cover 52 to lock or open clamping sleeve 4, so it can be without needing to configure other tools, by the configuration of this ultrasonic knife 50 itself to tighten and loosen clamping sleeve 4, very convenient.

[0033] The above-described embodiments are merely preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model. Any non-essential changes and substitutions made by those skilled in the art based on the utility model belong to the scope of protection required by the utility model.

Claims

1. An ultrasonic knife transducer comprising a transducer body and an ultrasonic horn located on one side of the transducer body, characterized by: The ultrasonic horn is provided with a fixing mechanism for fixing the blade on one side, the fixing mechanism comprises a blade holder and a clamping sleeve, the blade holder is arranged at the end of the ultrasonic horn and is concave to form a blade clamping groove, the clamping sleeve comprises a pressing part and a sleeving part, the pressing part is provided with a blade hole for the blade to pass through on one side, and the sleeving part is sleeved with the ultrasonic horn, and the pressing part can press the blade holder after the sleeving part is sleeved.

2. An ultrasonic knife transducer as described in claim 1, wherein: The sleeving part is provided with an internal thread, the ultrasonic horn is provided with an external thread, the sleeving part is screwed with the ultrasonic horn through the internal thread and the external thread, and the pressing part is provided with a first tapered slope.

3. An ultrasonic knife transducer as described in claim 2, wherein: The outer side of the blade holder is provided with a second tapered slope corresponding to the position of the first tapered slope.

4. An ultrasonic knife transducer as described in claim 3, wherein: The second tapered slope has the same taper as the first tapered slope.

5. An ultrasonic knife transducer as in claim 1, wherein: The blade holder is integrally arranged with the ultrasonic horn.

6. An ultrasonic knife transducer as described in claim 1, wherein: The blade holder is separately arranged with the ultrasonic horn, the blade holder is provided with a clamping part and a plug-in part, the end of the ultrasonic horn is provided with a plug-in hole, the plug-in part is inserted into the plug-in hole, and the blade clamping groove and the second tapered slope are both located on one side of the clamping part.

7. An ultrasonic knife transducer as in any of claims 1-6, wherein: One side of the clamping sleeve is provided with a wrench clamping surface.

8. An ultrasonic scalpel having a main body and a cap that are removably coupled, the main body having an ultrasonic scalpel transducer as claimed in claim 7 mounted therein, characterised in that: One side of the cover is provided with a wrench clamping groove, the wrench clamping groove is in groove type cooperation with the wrench clamping surface, so as to realize the locking or opening of the clamping sleeve through the cover.

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