CN120168056A - Medical mobile phone structure and assembly method - Google Patents

Abstract

The present application relates to a medical mobile phone structure and an assembly method. The medical mobile phone structure includes a fixed tube, a support tube assembly, an adjustment tube and a transmission assembly. The fixed tube has an installation channel inside, and the axial direction of the fixed tube is defined as a first direction. The support tube assembly and the adjustment tube both extend along the first direction. The rear end of the support tube assembly is inserted into the installation channel. The support tube assembly has a pipeline connected to the installation channel inside. The transmission assembly includes a transmission shaft. The rear end of the tool is inserted into the pipeline and connected to the transmission shaft. The adjustment tube is sleeved on the periphery of the support tube assembly. A spiral groove is provided on the peripheral wall of one of the adjustment tube and the support tube assembly, and the other is provided with a first sliding member located in the groove. The adjustment tube is arranged to rotate around its own axis, thereby driving the support tube assembly to move forward and backward along the first direction. The length of the tool supported by the support tube assembly can be adjusted, and then it can adapt to tools of different lengths, and the adaptability is stronger.

Description

Medical mobile phone structure and assembling method

Technical Field

The application relates to the technical field of medical instruments, in particular to a medical mobile phone structure and an assembly method.

Background

A power system handpiece generally includes a housing, a motor, and a cutter. Wherein the housing is graspable by a user's (e.g., surgeon) hand. The cutter is a grinding head, a planing tool and the like which can be used for grinding or rotary cutting, and the motor provides power for the cutter to help a user to treat the lesion position.

Due to the difference of lesion positions, various cutters exist from the practical requirement. Different tools differ in length, tooth form, angle, etc. When the length of the cutter is different, the existing shell cannot support the cutter well, so that when the operation of the head end of the cutter is stressed, larger jump is generated (namely, the head end deviates from the axis of the cutter), and the operation can be influenced during actual operation.

Disclosure of Invention

Based on the above, it is necessary to provide a medical mobile phone structure capable of reliably supporting cutters with different lengths.

The application provides a medical mobile phone structure which comprises a fixed pipe, a support pipe assembly, an adjusting pipe and a transmission assembly capable of driving a cutter to move, wherein a mounting channel is formed in the fixed pipe, the axial direction of the fixed pipe is defined to be a first direction, the support pipe assembly and the adjusting pipe both extend along the first direction, the rear end of the support pipe assembly is inserted into the mounting channel, at least part of the transmission assembly is arranged in the mounting channel and is positioned at the rear of the support pipe assembly, a pipeline communicated with the mounting channel is arranged in the support pipe assembly, the transmission assembly comprises a transmission shaft extending along the first direction, and the rear end of the cutter is inserted into the pipeline and is connected with the transmission shaft;

The adjusting pipe is sleeved on the periphery of the supporting pipe assembly, a spiral sliding groove is formed in the peripheral wall of one of the adjusting pipe and the supporting pipe assembly, a first sliding piece located in the sliding groove is arranged on the peripheral wall of the other one of the supporting pipe assembly and the adjusting pipe, and the adjusting pipe is arranged to rotate around the axis of the adjusting pipe, so that the supporting pipe assembly is driven to move forwards and backwards along the first direction.

In one embodiment, the sliding groove is located on an inner peripheral wall of the adjusting tube, the first sliding member is mounted on an outer peripheral wall of the supporting tube assembly, the fixed tube portion is located between the supporting tube assembly and the adjusting tube, and the fixed tube is provided with an opening through which the first sliding member passes, and the opening extends along the first direction.

In one embodiment, the support tube assembly comprises an outer tube and an inner tube assembly arranged in the outer tube, the first sliding piece is arranged on the tube wall of the outer tube, the tube is arranged on the inner tube assembly, the inner tube assembly and the outer tube are coaxially arranged, the inner tube assembly comprises a support bearing and a sleeve which are coaxially arranged, a hole clamp spring is fixed in the outer tube at a position close to the transmission assembly, and a first elastic piece is arranged between the hole clamp spring and the inner tube assembly.

In one embodiment, the sleeve comprises at least two sleeve units which are coaxially arranged, and the support bearings are arranged at the front end and the rear end of the sleeve and between the two adjacent sleeve units.

In one embodiment, the adjusting tube is provided with rolling elements, the fixing tube is provided with at least two stop holes for the rolling elements to enter, the stop holes are arranged at intervals along the circumference of the fixing tube, and the stop holes are positioned on the moving path of the rolling elements when the adjusting tube is in a rotating state.

In one embodiment, an elastic clamp is arranged between the adjusting pipe and the fixing pipe, and the elastic clamp is sleeved on the periphery of the fixing pipe corresponding to the stop position hole.

In one embodiment, an annular groove extending along the circumferential direction of the fixed pipe is formed in the outer circumferential wall of the fixed pipe, and a limiting part positioned in the annular groove is formed in the inner circumferential wall of the adjusting pipe.

In one embodiment, a positioning rod and a positioning hole which are in plug-in fit are arranged between the transmission shaft and the cutter in a matching manner, the positioning rod extends along the first direction, one of the positioning rod and the positioning hole is arranged on one end, close to the cutter, of the transmission shaft, and the other one of the positioning rod and the positioning hole is arranged on one end, close to the transmission shaft, of the cutter.

In one embodiment, the medical mobile phone structure further comprises a locking structure for locking or unlocking the cutter and the transmission shaft, and the locking structure is arranged on the transmission shaft.

In one embodiment, the transmission shaft is provided with an insertion passage for inserting the rear end of the cutter, the peripheral wall of the transmission shaft is provided with a through hole communicated with the insertion passage, the peripheral wall of the rear end of the cutter is provided with a groove extending along the circumferential direction of the cutter, the locking structure comprises an O-shaped ring sleeved on the periphery of the transmission shaft, a limiting piece is arranged on the inner peripheral wall of the O-shaped ring at a position corresponding to the through hole, a movable sleeve is sleeved on the periphery of the transmission shaft, at least part of the movable sleeve is positioned behind the O-shaped ring, a pushing component is in transmission connection with the movable sleeve so as to drive the movable sleeve to move between a first position and a second position along the first direction, the first position is positioned in front of the second position, at least part of the O-shaped ring is positioned on the inner side of the movable sleeve in a state of the first position, the limiting piece penetrates through the through hole to be restrained in the groove, and at least part of the movable sleeve is positioned in the second position of the movable sleeve in the state of being separated from the through hole.

In one embodiment, the transmission assembly further comprises a first bearing and a second bearing mounted on the transmission shaft, both the first bearing and the second bearing being coaxially arranged with the transmission shaft, the movable sleeve being located between the first bearing and the second bearing.

In one embodiment, an outward extending flange is arranged on the outer peripheral wall of the movable sleeve, the flange is located behind the O-shaped ring, an inclined groove is formed in the fixed pipe and located behind the sliding groove, the inclined direction of the inclined groove is mutually angled with the first direction and the circumferential direction of the fixed pipe, the pushing assembly comprises an adjusting ring, the adjusting ring is sleeved on the periphery of the fixed pipe and is arranged to rotate around the axis of the adjusting ring, a guide groove extending along the first direction is formed in the inner peripheral wall of the adjusting ring, a transmission sleeve is sleeved on the periphery of the movable sleeve, the transmission sleeve is located between the O-shaped ring and the flange, a second sliding piece is restrained on the peripheral wall of the transmission sleeve, a part of the second sliding piece penetrates out of the inclined groove and is located in the guide groove, the second elastic piece is abutted with the transmission sleeve, the transmission sleeve always has a backward movement trend and is abutted with the flange, and the third elastic piece is always abutted with the movable sleeve, so that the movable sleeve always has a forward movement trend.

In one embodiment, two ends of the inclined groove are respectively provided with a first limit opening and a second limit opening which are communicated with the inclined groove, the first limit opening is positioned in front of the second limit opening, the second sliding piece is positioned in the first limit opening when the movable sleeve is in a first position state, and the second sliding piece is positioned in the second limit opening when the movable sleeve is in a second position state.

In one embodiment, the transmission assembly further includes a first bearing and a second bearing mounted to the transmission shaft and coaxially disposed with the transmission shaft, the first bearing being located in front of the movable sleeve, the second bearing being located behind the movable sleeve, the second elastic member being located between the first bearing and the transmission sleeve, and the third elastic member being located between the flange and the second bearing.

The application further provides an assembling method of the medical mobile phone structure, the medical mobile phone structure comprises a fixed tube, a support tube assembly, an adjusting tube, a locking structure and a transmission assembly capable of driving a cutter to move, the locking structure is used for locking the cutter and the transmission assembly or unlocking the cutter and the transmission assembly, an installation channel is formed in the fixed tube and used for defining the length direction of the fixed tube as a first direction, the support tube assembly and the adjusting tube extend along the first direction, a spiral sliding groove is formed in the peripheral wall of one of the adjusting tube and the support tube assembly, a first sliding piece located in the sliding groove is arranged on the peripheral wall of the other one of the support tube assembly and the adjusting tube, and the assembling method sequentially comprises the following steps of S1, installing at least part of the locking structure on the transmission assembly, then placing the transmission assembly with the locking structure in the installation channel of the fixed tube from back to front, S2, inserting the rear end of the support tube assembly into the installation channel of the fixed tube, then arranging the adjusting tube in the installation channel of the periphery of the fixed tube assembly, and enabling the adjusting tube to be matched with the first sliding piece.

Compared with the prior art, in the medical mobile phone structure provided by the application, when the adjusting tube rotates, the adjusting tube and the supporting tube assembly are in sliding fit with the first sliding piece through the spiral sliding groove, so that the supporting tube assembly is driven to move back and forth along the first direction, the length of the supporting tube assembly for supporting the cutter is adjusted, and then the cutter with different lengths is matched, so that the adaptability is stronger. In addition, the supporting strength of the supporting tube assembly to the cutter is adjusted according to the length of the cutter, so that larger jump is avoided when the front end (head end) of the cutter is stressed, adverse effects on operation are reduced, and the requirements of users can be met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a cross-sectional view of a medical handset construction according to an embodiment of the application;

FIG. 2 is another angular cross-sectional view of a medical handset construction according to an embodiment of the application;

FIG. 3 is an enlarged view of a portion of the portion I of FIG. 2;

FIG. 4 is an enlarged view of a portion of the portion at II in FIG. 2;

FIG. 5 is a schematic view of an adjusting tube in a medical mobile phone structure according to an embodiment of the application;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic view of a support tube assembly in a medical handset configuration according to an embodiment of the application;

FIG. 8 is a schematic view of the exploded perspective of FIG. 7;

FIG. 9 is a schematic view of a cutter according to an embodiment of the present application;

FIG. 10 is a rear view of FIG. 9;

FIG. 11 is a schematic view of a fixing tube in a medical mobile phone structure according to an embodiment of the present application;

FIG. 12 is a schematic view of an adjusting ring in a medical handset according to an embodiment of the application;

FIG. 13 is a cross-sectional view of a portion of the structure of a medical handset according to an embodiment of the application;

fig. 14 is a schematic perspective exploded view of a part of a medical mobile phone according to an embodiment of the present application.

Reference numeral 1, a fixed tube; 10, installing a channel; 101, a first channel; 102, second channel, 103, first step, 11, open hole, 12, stop hole, 13, annular groove, 14, inclined groove, 141, first limit opening, 142, second limit opening, 2, support tube assembly, 21, outer tube, 211, first sliding member, 212, holding hole, 22, inner tube assembly, 220, pipe, 221, support bearing, 222, sleeve, 2221, sleeve unit, 23, hole clamp spring, 24, bushing, 25, first elastic member, 3, adjusting tube, 30, first mounting hole, 31, chute, 32, rolling member, 33, limit part, 34, mounting hole, 4, cutter, 40, head end, 41, positioning hole, 42, groove, 5, transmission assembly, 51, transmission shaft, 511, inserting channel, 512, through hole, 513, positioning rod, 52, first bearing, 53, second bearing, 6, elastic clamp, 7, locking structure, 71, O-ring, stop member, 72, movable sleeve, 721, inclined surface, flange, 73, push assembly, 731, guide ring, 11, guide ring, 75, guide ring, 738, guide ring, guide sleeve, 75, flexible member, guide ring, 75, sealing ring, guide ring, sealing structure, sealing ring, 738, sealing ring, and sealing ring.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," "front," "rear," and the like are used in the description of the present application for the purpose of describing various example structural parts and elements thereof, but are used herein for convenience of description and are not to be construed as exclusive embodiments based on the example orientations shown in the drawings. Because the embodiments disclosed herein may be arranged in a different orientation, the terms indicating orientation are by way of illustration only and should not be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to orientations that are opposite or coincident with the direction of gravity.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

It should be noted that "axially disposed" means that the overall arrangement direction extends along the axial direction, including but not limited to, and may form an angle with the axial direction.

Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 14, the application discloses a medical mobile phone structure. As shown in fig. 1-3, the medical mobile phone structure comprises a fixed tube 1, a support tube assembly 2, an adjusting tube 3 and a transmission assembly 5 capable of driving a cutter 4 to move, wherein an installation channel 10 is formed in the fixed tube 1, the axial direction of the fixed tube 1 is defined as a first direction a, the support tube assembly 2 and the adjusting tube 3 both extend along the first direction a, the rear end of the support tube assembly 2 is inserted into the installation channel 10, at least part of the transmission assembly 5 is arranged in the installation channel 10 and is positioned at the rear of the support tube assembly 2, the transmission assembly 5 comprises a transmission shaft 51 extending along the first direction a, a pipeline 220 communicated with the installation channel 10 is formed in the support tube assembly 2, and the rear end of the cutter 4 is inserted into the pipeline 220 and is connected with the transmission shaft 51 of the transmission assembly 5. That is, the front end of the cutter 4 is not located within the conduit 220 of the support tube assembly 2.

In the present claims and the description, "front" and "rear" refer to the direction facing the head end as the front and the direction facing away from the head end as the rear when the hand is holding the medical mobile phone structure. I.e. "front" means "head" and "rear" means "tail", e.g. the front end of the tool is the end of the tool remote from the drive shaft 51, and is also the head end or working end of the tool. The rear end of the cutter is the end of the cutter near the drive shaft 51.

The references to "front" and "rear" and the like in the claims and the description are for the purpose of describing various example structural elements and components of the present application only, but these terms are used herein for convenience of description and are used to adjust according to the particular physical orientation as they may be arranged in different orientations.

As shown in fig. 1 to 6, the adjusting tube 3 is sleeved on the periphery of the supporting tube assembly 2, a spiral chute 31 is formed in the peripheral wall of one of the adjusting tube 3 and the supporting tube assembly 2, the chute 31 extends along the first direction a, a first sliding piece 211 located in the chute 31 is arranged on the peripheral wall of the other one of the supporting tube assembly 2 and the adjusting tube 3, and the adjusting tube 3 is arranged to rotate around the axis of the adjusting tube 3, so that the supporting tube assembly 2 is driven to move back and forth along the first direction a.

In other embodiments, the first slider 211 is located on the inner peripheral wall of the adjustment tube 3, and the chute 31 is open on the outer peripheral wall of the support tube assembly 2. In the present embodiment, the chute 31 is located on the inner peripheral wall of the adjustment tube 3, the first slider 211 is mounted on the outer peripheral wall of the support tube assembly 2, the fixed tube 1 is partially located between the support tube assembly 2 and the adjustment tube 3, and the fixed tube 1 is provided with an opening 11 through which the first slider 211 passes, and the opening 11 extends along the first direction a.

It will be appreciated that, when the adjustment tube 3 rotates, since the adjustment tube 3 and the support tube assembly 2 are slidably engaged with the first slider 211 through the spiral chute 31, the support tube assembly 2 is driven to move back and forth along the first direction a, so that the length of the support tube assembly 2 for supporting the cutter 4 is adjusted, and then the cutter 4 with different lengths is adapted, so that the adaptability is stronger. In addition, the supporting strength of the supporting tube assembly 2 to the cutter 4 is adjusted according to the length of the cutter 4, so that larger jump is avoided when the front end (namely the head end 40) of the cutter 4 is stressed, adverse effects on operation are reduced, and the requirements of users can be met.

As shown in fig. 1 and 2, the inner peripheral wall of the support tube assembly 2 is in clearance fit with the outer peripheral wall of the cutter 4, avoiding interference of the cutter 4 with movement of the support tube assembly 2 as the support tube assembly 2 moves back and forth relative to the cutter 4 in the first direction a.

The support tube assembly 2 may take the form of a single tube, but at least from the point of view of a reliable support of the tool 4, as shown in fig. 1, 2, 7 and 8, the support tube assembly 2 comprises an outer tube 21 and an inner tube assembly 22 arranged inside the outer tube 21, the first slide 211 being arranged on the wall of the outer tube 21 and the tube 220 being arranged on the inner tube assembly 22. In order to facilitate the installation of the first sliding member 211 on the outer tube 21, the tube wall of the outer tube 21 is provided with a receiving hole 212 for installing the first sliding member 211.

The inner tube assembly 22 and the outer tube 21 are coaxially arranged, the inner tube assembly 22 comprises a support bearing 221 and a sleeve 222 which are coaxially arranged, a hole clamp spring 23 is fixed in the outer tube 21 at a position close to the transmission assembly 5, and a first elastic member 25 is arranged between the hole clamp spring 23 and the inner tube assembly 22.

The inner tube assembly 22, the hole clamp spring 23 and the first elastic member 25 are matched, so that the support bearing 221 and the sleeve 222 are effectively prevented from being displaced along the first direction A, the influence of machining errors is reduced, the pressing force generated by the first elastic member 25 can fix the static ring of the support bearing 221, and the inner ring of the support bearing 221 is in clearance fit with the outer peripheral wall of the cutter 4, so that friction heat generation is reduced.

In addition, the support tube assembly 2 further includes a bushing 24 between the inner tube assembly 22 and the hole clamp spring 23, and two bushings 24 are arranged at intervals along the first direction a. The first elastic member 25 is located between the two bushings 24, and is a spring, and the front and rear ends of the first elastic member 25 respectively abut against the corresponding side bushing 24. The first elastic member 25 is fitted around the outer periphery of the cutter 4 when the cutter 4 is inserted into the support tube assembly 2.

Further, the sleeve 222 includes at least two sleeve units 2221 coaxially arranged, and support bearings 221 are disposed at the front and rear ends of the sleeve 222 and between two adjacent sleeve units 2221. In this way, the length of the sleeve 222 is conveniently adjusted according to actual needs. In addition, the length of each sleeve unit 2221 is identical, or the length of the sleeve unit 2221 near the front end is short, and the distribution near the front end is compact.

As shown in fig. 1 to 6, the rolling element 32 is mounted on the adjusting tube 3, at least two stop holes 12 for the rolling element 32 to enter are provided on the fixed tube 1, and the stop holes 12 are arranged at intervals along the circumferential direction of the fixed tube 1, and the stop holes 12 are located on the moving path of the rolling element 32 when the adjusting tube 3 is in a rotating state. It will be appreciated that the adjustment tube 3 is stopped during rotation by the cooperation of the stop hole 12 and the rolling member 32.

In this embodiment, as shown in fig. 11, there are 10 stopper holes 12, and thus, the adjustment tube 3 is rotated 36 °, and the stopper is locked once. The adjustment can be performed according to actual adjustment requirements, and illustratively, the number of the stop holes 12 is more than 3, such as more than 3-9 or 10.

As shown in fig. 1 to 6, an elastic clamp 6 is arranged between the adjusting tube 3 and the fixed tube 1, and the elastic clamp 6 is sleeved on the periphery of the fixed tube 1 corresponding to the position stopping hole 12. It will be appreciated that the presence of the elastic band 6 secures the rolling element 32, maintaining the self-locking condition of the adjustment tube 3.

In order to facilitate the installation of the rolling elements 32 on the adjusting tube 3, a first installation hole 30 for installing the rolling elements 32 is formed in the tube wall of the adjusting tube 3, and the first installation hole 30 is a blind hole or a through hole. The rolling members 32 are balls.

Further, an annular groove 13 extending in the circumferential direction of the fixed pipe 1 is provided on the outer peripheral wall of the fixed pipe 1, and a stopper 33 located in the annular groove 13 is provided on the inner peripheral wall of the adjustment pipe 3. By the cooperation of the limiting part 33 and the annular groove 13, the axial limiting but circumferential rotation of the adjusting tube 3 is realized.

The limiting portion 33 is a bayonet lock, a clip spring, or a protrusion. The limiting portion 33 may be any portion including a common cylinder, a polygon, etc., but cannot affect the rotation of the adjustment tube 3. In the present embodiment, the adjusting tube 3 is provided with an assembly hole 34 for installing the stopper 33, the assembly hole 34 is a through hole penetrating the wall of the adjusting tube 3, and the outer periphery of the adjusting tube 3 is provided with a decorative ring 9 for preventing the stopper 33 from coming out of the assembly hole 34.

As shown in fig. 1 to 4, the installation channel 10 includes a first channel 101 and a second channel 102 that are sequentially communicated from front to back, a first step 103 is formed between the first channel 101 and the second channel 102, the support tube assembly 2 is inserted into the first channel 101, and the transmission assembly 5 is located in the second channel 102.

In order to realize the driving connection between the transmission assembly 5 and the cutter 4, as shown in fig. 1-4, 13 and 14, the transmission shaft 51 is provided with a plugging channel 511 for inserting the rear end of the cutter 4, and the peripheral wall of the transmission shaft 51 is provided with a through hole 512 communicated with the plugging channel 511. The connection of the drive shaft 51 to the tool 4 is achieved by the plug-in connection of the plug-in channel 511 and the through-opening 512.

In order to position the position of the cutter 4 when being mounted, a positioning rod 513 and a positioning hole 41 which are matched and matched are arranged between the transmission shaft 51 and the cutter 4, the positioning rod 513 extends along the first direction A, one of the positioning rod 513 and the positioning hole 41 is arranged at one end of the transmission shaft 51 close to the cutter 4, namely at the front end of the transmission shaft 51, and the other one of the positioning rod 513 and the positioning hole 41 is arranged at one end of the cutter 4 close to the transmission shaft 51, namely at the rear end of the cutter 4.

In other embodiments, the locating lever 513 is located on the rear face of the tool 4 and the locating hole 41 is located on the face of the spigot channel 511. In the present embodiment, as shown in fig. 10 and 13, the positioning rod 513 is located on the end surface of the insertion passage 511, and the positioning hole 41 is located on the rear end surface of the cutter 4.

In addition, the drive shaft 51 rotates around its own axis, thereby driving the cutter 4 to rotate. In order to limit the circumferential rotation of the cutter 4 relative to the transmission shaft 51 after the rear end of the cutter 4 is inserted into the insertion passage 511, in this embodiment, the rear end of the cutter 4 has an insertion section with a non-circular cross section, and the insertion passage 511 has a mating section matched with the outer peripheral wall of the insertion section, so that the circumferential constraint of the cutter 4 is realized by the mating of the insertion section and the mating section.

As shown in fig. 9 and 10, the outer peripheral wall of the rear end of the cutter 4 is provided with a groove 42 extending in the circumferential direction of the cutter 4. In addition, the medical mobile phone structure further comprises a locking structure 7 for locking or unlocking the cutter 4 and the transmission shaft 51, namely, the locking structure 7 is used for locking the cutter 4 and the transmission assembly 5 or unlocking the cutter 4 and the transmission assembly 5. The aforementioned locking structure 7 is provided on the drive shaft 51.

In this embodiment, as shown in fig. 1 to 4, 13 and 14, the locking structure 7 includes an O-ring 71, a movable sleeve 72 and a pushing assembly 73. The O-ring 71 is fitted around the transmission shaft 51, and a stopper 711 is provided on the inner peripheral wall of the O-ring 71 at a position corresponding to the through hole 512.

The movable sleeve 72 is sleeved on the periphery of the transmission shaft 51, and at least part of the movable sleeve 72 is positioned behind the O-shaped ring 71. The pushing assembly 73 is in driving connection with the movable sleeve 72 to drive the movable sleeve 72 to move between a first position and a second position along the first direction a, the first position is located in front of the second position, at least part of the O-ring 71 is located inside the movable sleeve 72 in the state that the movable sleeve 72 is located at the first position, and the limiting piece 711 penetrates through the through hole 512 to be restrained in the groove 42, so that the cutter 4 is locked with the transmission shaft 51. In the second position of the movable sleeve 72, the movable sleeve 72 is located behind the O-ring 71, and the limiting member 711 is separated from the groove 42 and located in the through hole 512, so that unlocking of the cutter 4 is achieved, and the cutter 4 can be taken out from the pipe 220.

In this way, the movable sleeve 72 can be switched between the first position and the second position by the pushing component 73, the movable sleeve 72 deforms the O-ring 71, and then the limiting piece 711 on the O-ring 71 enters or exits the groove 42 to lock or unlock the cutter 4, so that the whole process is convenient to operate.

As shown in fig. 13, the inner peripheral wall of the front end of the movable sleeve 72 has an inclined surface 721 gradually inclined outwardly from back to front, and when the movable sleeve 72 moves forward, the inclined surface 721 continuously presses the O-ring 71, and at this time, the O-ring 71 clasps the stopper 711 thereon, and the stopper 711 enters the groove 42.

At least two of the stoppers 711 are arranged at intervals along the circumferential direction of the O-ring 71. Illustratively, the limiting members 711 are two, three or more. In addition, the limiting member 711 is a steel ball or a convex portion or other limiting body.

In addition, as shown in fig. 1to 4, 13 and 14, the locking structure 7 further includes a squeeze cover 74 sleeved on the periphery of the transmission shaft 51, the squeeze cover 74 is located in front of the movable sleeve 72, and a part of the O-ring 71 is located inside the squeeze cover 74. The transmission shaft 51 is further provided with two shaft snap springs 75, and the two shaft snap springs 75 are arranged at intervals along the axial direction of the transmission shaft 51. The two shaft snap springs 75 are located between the first bearing 52 and the second bearing 53, and the pressing cover 74, the transmission sleeve, and the movable sleeve are all located between the two shaft snap springs 75, and the rear end surface of the pressing cover 74 abuts against the front end surface of the shaft snap spring 75 located in front.

In other embodiments, the pushing assembly 73 may be a pushing sleeve fixedly connected to the movable sleeve 72, and an operation portion penetrating the fixed tube 1 is disposed on the pushing sleeve, and the pushing sleeve is driven to move back and forth along the first direction a by pushing the operation portion along the first direction a, so as to drive the movable sleeve 72 to move.

In the present invention, the outer peripheral wall of the movable sleeve 72 is provided with an outwardly extending flange 722, the flange 722 is located behind the O-ring 71, the fixed tube 1 is provided with an inclined groove 14 located behind the chute 31, and the inclined direction of the inclined groove 14 is at an angle to both the first direction a and the circumferential direction of the fixed tube 1.

In the present embodiment, as shown in fig. 1 to 4 and 11 to 14, the pushing assembly 73 includes an adjusting ring 731, a driving sleeve 732, a second elastic member 733 and a third elastic member 734. Wherein, adjusting ring 731 is sleeved on the periphery of fixed tube 1 and is arranged to rotate around its own axis, and guiding groove 7311 extending along first direction A is provided on the inner peripheral wall of adjusting ring 731.

The driving sleeve 732 is sleeved on the periphery of the movable sleeve 72, the driving sleeve 732 is positioned between the O-ring 71 and the flange 722, the second sliding member 7321 is restrained on the peripheral wall of the driving sleeve 732, and part of the second sliding member 7321 passes through the inclined groove 14 and is positioned in the guide groove 7311. The second elastic member 733 abuts against the driving sleeve 732, so that the driving sleeve 732 always has a tendency to move backward against the flange 722. The third elastic member 734 abuts against the movable sleeve 72, so that the movable sleeve 72 always has a forward movement tendency.

Thus, the portion of the second slider 7321 on the driving sleeve 732 that passes out of the inclined groove 14 is positioned in the guide groove 7311 of the adjustment ring 731, and the second slider 7321 slides along the inclined groove 14 when the adjustment ring 731 is rotated. Thus, when the adjustment ring 731 is rotated in a forward direction, e.g., clockwise, the second slider 7321 slides rearward along the inclined groove 14, and since the second slider 7321 is disposed on the driving sleeve 732, the driving sleeve 732 is moved rearward, and since the flange 722 of the movable sleeve 72 is located rearward of the driving sleeve 732, the driving sleeve 732 pushes the movable sleeve 72 together to move rearward until it moves to the second position. When the adjustment ring 731 is rotated reversely, the second slider 7321 moves forward along the inclined groove 14, and since the second slider 7321 is disposed on the driving sleeve 732, the driving sleeve 732 is moved forward to press the second elastic member 733, and the movable sleeve 72 moves forward under the action of the third elastic member 734 until moving to the first position.

Further, as shown in fig. 1 to 4 and 11 to 14, a first limiting opening 141 and a second limiting opening 142 are respectively provided at two ends of the inclined groove 14, which are communicated with the inclined groove 14, the first limiting opening 141 is located in front of the second limiting opening 142, the second sliding member 7321 is located in the first limiting opening 141 when the movable sleeve 72 is in the first position state, and the second sliding member 7321 is located in the second limiting opening 142 when the movable sleeve 72 is in the second position state. The presence of the first and second limiting ports 141, 142 locks the first and second positions of the movable sleeve 72. The shapes of the first and second stopper ports 141 and 142 are not limited as long as the second slider 7321 is restrained therein.

When it is desired to install the cutter 4, the adjusting ring 731 is rotated forward, and the movable sleeve 72 is moved backward to the second position, at which time the second slider 7321 is positioned in the second limiting port 142, and the cutter 4 is inserted into the duct 220 of the support tube assembly 2 until it is not pushed. The adjustment ring 731 is then rotated in the opposite direction and the movable sleeve 72 is moved forward to the first position, at which time the stop 711 of the O-ring 71 is inserted into the recess 42 of the cutter 4, locking the cutter 4 to the drive shaft 51.

In order to connect the second slider 7321 to the driving sleeve 732, a second mounting hole 7320 for mounting the second slider 7321 is formed in the outer circumferential wall of the driving sleeve 732. The first slider 211 and the second slider 7321 are balls or steel balls or other spheres.

The above-mentioned transmission assembly 5 further includes a first bearing 52 and a second bearing 53 mounted on the transmission shaft 51, the first bearing 52 and the second bearing 53 being each coaxially arranged with the transmission shaft 51, and a movable sleeve 72 being located between the first bearing 52 and the second bearing 53. The presence of the first bearing 52 and the second bearing 53 ensures the coaxial precision of the whole transmission shaft 51, and further prevents the front end (head end) of the cutter 4 from jumping when subjected to operation.

In the present embodiment, the first bearing 52 is located in front of the movable sleeve 72, the second bearing 53 is located behind the movable sleeve 72, the second elastic member 733 is located between the first bearing 52 and the driving sleeve 732, and the third elastic member 734 is located between the flange 722 and the second bearing 53. Specifically, the second elastic member 733 and the third elastic member 734 are springs sleeved on the periphery of the transmission shaft 51, and two ends of the second elastic member 733 respectively abut against the front ends of the first bearing 52 and the transmission sleeve 732. The third elastic member 734 abuts the flange 722 and the second bearing 53 at both ends thereof, respectively.

In addition, the above-mentioned medical handset structure further includes a housing 8, the housing 8 has an assembly passage 81 for mounting the fixing tube 1, and the housing 8 has a communication passage 82 communicating with the assembly passage 81, and the rear end of the transmission shaft 51 is located in the communication passage 82. Specifically, the second bearing 53 is partially located at the rear of the fixed tube 1, a second step 83 is formed between the fitting passage 81 and the communication passage 82, and when the fixed tube 1 is inserted into the fitting passage 81, the rear end of the fixed tube 1 abuts against the second step 83 through the second bearing 53, and the fixed tube 1 is fixedly connected with the housing 8. The fixing tube 1 and the shell 8 are fixedly connected in various manners, and can be connected in a buckling manner or in a threaded manner.

The assembling method of the medical mobile phone structure sequentially comprises the following steps:

S1, at least part of the locking structure 7 is installed on the transmission assembly 5, then the transmission assembly 5 with the locking structure 7 is placed in the installation channel 10 of the fixed tube 1 from back to front, specifically, the part of the locking structure 7 except for the adjusting ring 731 is installed on the transmission shaft 51, then the first bearing 52 and the second bearing 53 are respectively sleeved on the front end and the rear end of the transmission shaft 51, then the transmission assembly 5 is inserted into the second channel 102 of the fixed tube 1 from back to front until the first bearing 52 abuts against the first step 103, and then the fixed tube 1 is fixed on the housing 8 after being placed in the assembly channel 81 of the housing 8. The second slider 7321 is then placed through the inclined groove 14 into the second mounting hole 7320 of the driving sleeve 732, and then the adjustment ring 731 is fitted around the outer periphery of the fixed tube 1, and the guide groove 7311 of the adjustment ring 731 is aligned with the second slider 7321, at this time, the portion of the second slider 7321 that passes through the inclined groove 14 is positioned in the guide groove 7311 of the adjustment ring 731, and the rear end of the adjustment ring 731 abuts against the front end of the housing 8.

S2, inserting the rear end of the support tube assembly 2 into the installation channel 10 of the fixed tube 1, and then sleeving the adjusting tube 3 on the periphery of the fixed tube 1, and enabling the sliding groove 31 to be in sliding fit with the first sliding piece 211. Specifically, the rear end of the support tube assembly 2 is inserted into the first passage 101 of the stationary tube 1, and the receiving hole 212 of the support tube assembly 2 is aligned with the opening 11, and then the first slider 211 is placed into the receiving hole 212 through the opening 11. Then, the elastic clamp 6 is firstly placed at the top end of the groove 42, then the rolling element 32 is placed in the stop hole 12, when the elastic clamp 6 is kept at the position of the stop hole 12 and the rolling element 32 is clamped, the adjusting tube 3 is sleeved on the periphery of the fixed tube 1, and the part of the first sliding element 211 penetrating out of the opening 11 is positioned in the sliding groove 31;

S3, then the limiting part 33 is placed in the annular groove 13 of the fixed pipe 1, the part of the limiting part 33 penetrating out of the annular groove 13 is arranged in the assembly hole of the adjusting pipe 3, then the decorative ring 9 is sleeved on the periphery of the adjusting pipe 3 until the rear end of the decorative ring 9 abuts against the front end of the adjusting ring 731, and assembly is completed.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.

Claims (15)

1. The medical mobile phone structure is characterized by comprising a fixed pipe, a support pipe assembly, an adjusting pipe and a transmission assembly capable of driving a cutter to move, wherein a mounting channel is formed in the fixed pipe, the axial direction of the fixed pipe is defined to be a first direction, the support pipe assembly and the adjusting pipe both extend along the first direction, the rear end of the support pipe assembly is inserted into the mounting channel, at least part of the transmission assembly is arranged in the mounting channel and is positioned behind the support pipe assembly, a pipeline communicated with the mounting channel is arranged in the support pipe assembly, the transmission assembly comprises a transmission shaft extending along the first direction, and the rear end of the cutter is inserted into the pipeline and is connected with the transmission shaft;

The adjusting pipe is sleeved on the periphery of the supporting pipe assembly, a spiral sliding groove is formed in the peripheral wall of one of the adjusting pipe and the supporting pipe assembly, a first sliding piece located in the sliding groove is arranged on the peripheral wall of the other one of the supporting pipe assembly and the adjusting pipe, and the adjusting pipe is arranged to rotate around the axis of the adjusting pipe, so that the supporting pipe assembly is driven to move forwards and backwards along the first direction.

2. The medical handpiece structure as set forth in claim 1, wherein the slide groove is provided on an inner peripheral wall of the adjustment tube, the first slider is mounted on an outer peripheral wall of the support tube assembly, the fixed tube portion is provided between the support tube assembly and the adjustment tube, and the fixed tube is provided with an opening through which the first slider passes, the opening extending in the first direction.

3. The medical handpiece structure as set forth in claim 2, wherein the support tube assembly includes an outer tube and an inner tube assembly disposed in the outer tube, the first slider is disposed on a tube wall of the outer tube, the tube is disposed on the inner tube assembly, the inner tube assembly is coaxially disposed with the outer tube, the inner tube assembly includes a support bearing and a sleeve coaxially disposed, a hole clamp spring is fixed in the outer tube at a position close to the transmission assembly, and a first elastic member is disposed between the hole clamp spring and the inner tube assembly.

4. A medical handpiece construction according to claim 3, wherein the sleeve comprises at least two coaxially arranged sleeve units, the support bearings being provided at both front and rear ends of the sleeve and between adjacent two of the sleeve units.

5. The medical mobile phone structure according to claim 2, wherein the adjusting tube is provided with rolling elements, the fixing tube is provided with at least two stop holes for the rolling elements to enter, the stop holes are arranged at intervals along the circumferential direction of the fixing tube, and the stop holes are positioned on the movement path of the rolling elements when the adjusting tube is in a rotating state.

6. The medical mobile phone structure according to claim 5, wherein an elastic clamp is arranged between the adjusting tube and the fixing tube, and the elastic clamp is sleeved on the periphery of the fixing tube corresponding to the stop hole.

7. The medical handpiece structure according to claim 6, wherein an annular groove extending in the circumferential direction of the fixed tube is provided in the outer peripheral wall of the fixed tube, and a stopper portion located in the annular groove is provided in the inner peripheral wall of the adjustment tube.

8. The medical mobile phone structure according to claim 1, wherein a positioning rod and a positioning hole which are matched and spliced are arranged between the transmission shaft and the cutter, the positioning rod extends along the first direction, one of the positioning rod and the positioning hole is arranged at one end of the transmission shaft, which is close to the cutter, and the other of the positioning rod and the positioning hole is arranged at one end of the cutter, which is close to the transmission shaft.

9. The medical cell phone structure according to any one of claims 1-8, further comprising a locking structure for locking or unlocking the cutter and the transmission shaft, the locking structure being disposed on the transmission shaft.

10. The medical mobile phone structure according to claim 9, wherein the transmission shaft is provided with a plugging channel into which the rear end of the cutter is inserted, and the peripheral wall of the transmission shaft is provided with a through hole communicated with the plugging channel, and the peripheral wall of the rear end of the cutter is provided with a groove extending along the circumferential direction of the cutter, and the locking structure comprises:

The O-shaped ring is sleeved on the periphery of the transmission shaft, and a limiting piece is arranged on the inner peripheral wall of the O-shaped ring at a position corresponding to the through hole;

The movable sleeve is sleeved on the periphery of the transmission shaft, and at least part of the movable sleeve is positioned behind the O-shaped ring;

The pushing assembly is in transmission connection with the movable sleeve so as to drive the movable sleeve to move between a first position and a second position along the first direction, the first position is located in front of the second position, at least part of the O-shaped ring is located at the inner side of the movable sleeve in the state of the first position, the limiting piece penetrates out of the through hole to be restrained in the groove, and the movable sleeve is located at the rear of the O-shaped ring in the state of the second position, and the limiting piece is separated from the groove to be located in the through hole.

11. The medical handpiece construction of claim 10 wherein the drive assembly further includes first and second bearings mounted on the drive shaft, the first and second bearings each being coaxially disposed with the drive shaft, the movable sleeve being positioned between the first and second bearings.

12. The medical handpiece structure as set forth in claim 10, wherein the outer peripheral wall of the movable sleeve is provided with an outwardly extending flange, the flange being located rearward of the O-ring, the stationary tube being provided with an inclined groove located rearward of the chute, the inclined direction of the inclined groove being at an angle to both the first direction and the circumferential direction of the stationary tube, the pushing assembly including:

The adjusting ring is sleeved on the periphery of the fixed pipe and is arranged to rotate around the axis of the adjusting ring, and a guide groove extending along the first direction is formed in the inner peripheral wall of the adjusting ring;

The transmission sleeve is sleeved on the periphery of the movable sleeve, the transmission sleeve is positioned between the O-shaped ring and the flange, a second sliding piece is restrained on the peripheral wall of the transmission sleeve, and part of the second sliding piece penetrates out of the inclined groove and is positioned in the guide groove;

The second elastic piece is abutted with the transmission sleeve, so that the transmission sleeve always has a tendency of moving backwards to be abutted with the flange;

And the third elastic piece is abutted with the movable sleeve, so that the movable sleeve always has a forward movement trend.

13. The medical mobile phone structure according to claim 12, wherein a first limiting opening and a second limiting opening which are communicated with the inclined groove are respectively arranged at two ends of the inclined groove, the first limiting opening is positioned in front of the second limiting opening, the second sliding piece is positioned in the first limiting opening when the movable sleeve is in a first position state, and the second sliding piece is positioned in the second limiting opening when the movable sleeve is in a second position state.

14. The medical handpiece construction of claim 12 wherein the drive assembly further includes a first bearing and a second bearing mounted to and coaxially disposed with the drive shaft, the first bearing being positioned in front of the movable sleeve, the second bearing being positioned behind the movable sleeve, the second resilient member being positioned between the first bearing and the drive sleeve, the third resilient member being positioned between the flange and the second bearing.

15. The medical mobile phone structure comprises a fixed tube, a support tube assembly, an adjusting tube, a locking structure and a transmission assembly capable of driving a cutter to move, wherein the locking structure is used for locking the cutter and the transmission assembly or unlocking the cutter and the transmission assembly, an installation channel is formed in the fixed tube and used for defining the length direction of the fixed tube as a first direction, the support tube assembly and the adjusting tube extend along the first direction, a spiral chute is formed in the peripheral wall of one of the support tube assembly and the adjusting tube assembly, a first sliding piece positioned in the chute is arranged on the peripheral wall of the other one of the support tube assembly and the adjusting tube, and the assembly method sequentially comprises the following steps:

s1, installing at least part of locking structure on the transmission assembly, and then placing the transmission assembly with the locking structure in an installation channel of the fixed pipe from back to front;

s2, inserting the rear end of the support tube assembly into the installation channel of the fixed tube, sleeving the adjusting tube on the periphery of the fixed tube, and enabling the sliding groove to be in sliding fit with the first sliding piece.