阅读说明：本技术 一种根管治疗仪 (Root canal therapy instrument ) 是由 安雷 朱志兴 于 2020-12-25 设计创作，主要内容包括：本发明实施例公开了一种根管治疗仪,用于解决现有的的根管治疗仪在调整弯机头的角度时,转动连接座容易出现松动的技术问题。本发明实施例包括弯机头、手持主机以及连接座；所述连接座包括固定套和旋转套；所述固定套固定安装于所述手持主机上；所述旋转套同轴设置于所述固定套中,且所述旋转套可相对所述固定套旋转,所述旋转套的外侧壁沿其周向设置有环形安装槽,所述环形安装槽上安装有密封圈,所述密封圈远离所述环形安装槽的侧面与所述固定套的内侧壁相接触；所述弯机头的尾部与所述旋转套连接。(The embodiment of the invention discloses a root canal therapy instrument, which is used for solving the technical problem that when the angle of a bender head is adjusted, a connecting seat is easy to loosen when the traditional root canal therapy instrument rotates. The embodiment of the invention comprises a bending machine head, a handheld host and a connecting seat; the connecting seat comprises a fixed sleeve and a rotating sleeve; the fixed sleeve is fixedly arranged on the handheld host; the rotary sleeve is coaxially arranged in the fixed sleeve and can rotate relative to the fixed sleeve, an annular mounting groove is formed in the outer side wall of the rotary sleeve along the circumferential direction of the rotary sleeve, a sealing ring is mounted on the annular mounting groove, and the side face, far away from the annular mounting groove, of the sealing ring is in contact with the inner side wall of the fixed sleeve; the tail part of the bending machine head is connected with the rotating sleeve.)

1. A root canal therapy instrument is characterized by comprising a bending machine head, a handheld host and a connecting seat;

the connecting seat comprises a fixed sleeve and a rotating sleeve;

the fixed sleeve is fixedly arranged on the handheld host;

the rotary sleeve is coaxially arranged in the fixed sleeve and can rotate relative to the fixed sleeve, an annular mounting groove is formed in the outer side wall of the rotary sleeve along the circumferential direction of the rotary sleeve, a sealing ring is mounted on the annular mounting groove, and the side face, far away from the annular mounting groove, of the sealing ring is in contact with the inner side wall of the fixed sleeve;

the tail part of the bending machine head is connected with the rotating sleeve.

2. The endodontic instrument of claim 1, wherein a tail portion of said bender head is in plug-fit engagement with said rotary sleeve;

a clamping column is arranged on the tail part of the bending machine head, and a clamping groove matched with the clamping column is arranged at the front end part of the rotary sleeve;

when the bending machine head is inserted into the rotary sleeve, the clamping column is clamped in the clamping groove.

3. The endodontic instrument of claim 2, wherein a snap ring groove is provided along a circumferential direction of a tail portion of the bender head;

the tail of the rotating sleeve is provided with at least one round hole along the circumferential direction, a positioning steel ball is arranged in the round hole, the tail of the rotating sleeve is sleeved with a spring ring along the circumferential direction, and the spring ring is pressed against the steel ball towards one side surface of the rotating sleeve;

when the tail part of the bending machine head is inserted into the rotating sleeve, the positioning steel balls are positioned in the clamping ring groove.

4. The endodontic instrument of claim 3, wherein said spring ring is formed with an opening therein which is fitted with said positioning steel ball, and a diameter of said opening is smaller than a diameter of said positioning steel ball.

5. The endodontic instrument of claim 1 wherein said hand held host includes a motor, a fixed bracket and a housing;

the motor is fixedly arranged on the fixed support, and the fixed support is fixed in the shell;

the fixed sleeve is fixedly connected with the front end part of the motor.

6. The endodontic instrument of claim 5, further comprising a decorative cap;

the decorative cover is in threaded connection with the outer side wall of the front end part of the fixed sleeve.

7. The endodontic instrument of claim 6, wherein a flat boss is provided on an inner sidewall of a front end portion of said decorative cover;

the front end part of the rotary sleeve is provided with an annular boss matched with the planar boss along the circumferential direction;

when the decorative cover is fixed with the front end part of the fixed sleeve, the plane boss is contacted with the annular boss.

8. The endodontic instrument of claim 6, wherein an inner side wall of the tail portion of the decorative cover is provided with an inclined surface along a circumferential direction thereof;

the front end part of the shell is provided with a plurality of plastic elastic sheets which are arranged around the front end part of the shell;

when the decorative cover is fixed with the front end part of the fixed sleeve, the inclined surface extrudes the plastic elastic sheet, so that the plastic elastic sheet moves towards the direction of the fixed sleeve to be pressed against the outer side wall of the fixed sleeve.

9. The endodontic instrument of claim 5 wherein a plurality of stop ribs are provided on an inside wall of the front end portion of the housing;

a plurality of limiting grooves matched with the limiting ribs are formed in the tail part of the fixing sleeve;

the limiting rib is clamped in the limiting groove.

10. The endodontic instrument of claim 5 wherein said harness includes a plurality of locating grooves formed in a tail portion thereof;

the front end part of the fixed support is provided with a plurality of positioning bosses matched with the positioning grooves, and the positioning bosses are clamped in the positioning grooves.

Technical Field

The invention relates to the technical field of root canal therapy instrument design, in particular to a root canal therapy instrument.

Background

The root canal therapeutic instrument is also called a root canal motor, and is a precise electronic instrument for replacing manual expansion of root canals and preparing more standard root canals in order to reduce the working strength of doctors, thereby greatly reducing the working strength of doctors, saving the working time, improving the working efficiency and being widely applied clinically.

The root canal treatment process needs to use the handheld host machine to match with the bending machine head and the root canal file for use, and because the tooth to be treated by the root canal treatment can be positioned on the upper tooth or the lower tooth and also can be positioned at the front end or the rear end, the bending machine head needs to be adjusted to different angles to facilitate the operation of the root canal treatment by doctors. The curved aircraft nose generally is connected with handheld host computer through a connecting seat that has rotation function among the present root canal therapy appearance, when the doctor needs to the curved aircraft nose angle of adjustment, the swivel mount of being connected with the curved aircraft nose just can rotate in fixed cover, because swivel mount and fixed cover all belong to hard connecting piece, for hard rotation cooperation when both rotate relatively, the swivel mount can appear becoming flexible the condition of rocking often when rotating for fixed cover, lead to the curved aircraft nose to be in the unstable state, seriously influence doctor's operation.

Therefore, in order to solve the above-mentioned technical problems, the search for an endodontic instrument has become an important subject to be studied by those skilled in the art.

Disclosure of Invention

The embodiment of the invention discloses a root canal therapy instrument, which is used for solving the technical problem that when the angle of a bender head is adjusted, a connecting seat is easy to loosen when the traditional root canal therapy instrument rotates.

The embodiment of the invention provides a root canal therapy instrument, which comprises a bending machine head, a handheld host and a connecting seat;

the connecting seat comprises a fixed sleeve and a rotating sleeve;

the fixed sleeve is fixedly arranged on the handheld host;

the rotary sleeve is coaxially arranged in the fixed sleeve and can rotate relative to the fixed sleeve, an annular mounting groove is formed in the outer side wall of the rotary sleeve along the circumferential direction of the rotary sleeve, a sealing ring is mounted on the annular mounting groove, and the side face, far away from the annular mounting groove, of the sealing ring is in contact with the inner side wall of the fixed sleeve;

the tail part of the bending machine head is connected with the rotating sleeve.

Optionally, the tail part of the bending machine head is in plug fit with the rotating sleeve;

a clamping column is arranged on the tail part of the bending machine head, and a clamping groove matched with the clamping column is arranged at the front end part of the rotary sleeve;

when the bending machine head is inserted into the rotary sleeve, the clamping column is clamped in the clamping groove.

Optionally, a clamping ring groove is formed in the tail of the bending machine head along the circumferential direction of the tail;

the tail of the rotating sleeve is provided with at least one round hole along the circumferential direction, a positioning steel ball is arranged in the round hole, the tail of the rotating sleeve is sleeved with a spring ring along the circumferential direction, and the spring ring is pressed against the steel ball towards one side surface of the rotating sleeve;

when the tail part of the bending machine head is inserted into the rotating sleeve, the positioning steel balls are positioned in the clamping ring groove.

Optionally, the spring ring is provided with an opening matched with the positioning steel ball, and the diameter of the opening is smaller than that of the positioning steel ball.

Optionally, the handheld host comprises a motor, a fixed bracket and a housing;

the motor is fixedly arranged on the fixed support, and the fixed support is fixed in the shell;

the fixed sleeve is fixedly connected with the front end part of the motor.

Optionally, a decorative cover is also included;

the decorative cover is in threaded connection with the outer side wall of the front end part of the fixed sleeve.

Optionally, a plane boss is arranged on the inner side wall of the front end part of the decorative cover;

the front end part of the rotary sleeve is provided with an annular boss matched with the planar boss along the circumferential direction;

when the decorative cover is fixed with the front end part of the fixed sleeve, the plane boss is contacted with the annular boss.

Optionally, the inner side wall of the tail part of the decorative cover is provided with an inclined surface along the circumferential direction thereof;

the front end part of the shell is provided with a plurality of plastic elastic sheets which are arranged around the front end part of the shell;

when the decorative cover is fixed with the front end part of the fixed sleeve, the inclined surface extrudes the plastic elastic sheet, so that the plastic elastic sheet moves towards the direction of the fixed sleeve to be pressed against the outer side wall of the fixed sleeve.

Optionally, a plurality of limiting ribs are arranged on the inner side wall of the front end part of the shell;

a plurality of limiting grooves matched with the limiting ribs are formed in the tail part of the fixing sleeve;

the limiting rib is clamped in the limiting groove.

Optionally, a plurality of positioning grooves are arranged on the tail part of the fixing sleeve;

the front end part of the fixed support is provided with a plurality of positioning bosses matched with the positioning grooves, and the positioning bosses are clamped in the positioning grooves.

According to the technical scheme, the embodiment of the invention has the following advantages:

the embodiment of the invention provides a root canal therapy instrument which comprises a bending machine head, a handheld host and a connecting seat; the connecting seat comprises a fixed sleeve and a rotating sleeve; the fixed sleeve is fixedly arranged on the handheld host; the rotary sleeve is coaxially arranged in the fixed sleeve and can rotate relative to the fixed sleeve, an annular mounting groove is formed in the outer side wall of the rotary sleeve along the circumferential direction of the rotary sleeve, a sealing ring is mounted on the annular mounting groove, and the side face, far away from the annular mounting groove, of the sealing ring is in contact with the inner side wall of the fixed sleeve; the tail part of the bending machine head is connected with the rotating sleeve. In this embodiment, install the sealing washer in the annular mounting groove of swivel sleeve, when the swivel sleeve was in fixed cover, the sealing washer made better support with the produced frictional force of the inside wall of fixed cover contact for the swivel sleeve is more stable when rotatory for fixed cover, reduces the not hard up condition of appearance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of an endodontic instrument;

FIG. 2 is an exploded view of an endodontic instrument configuration;

FIG. 3 is a schematic structural view of a bending head;

FIG. 4 is an exploded view of the structure of the connecting socket;

fig. 5 is a schematic structural view of the fixing sleeve;

FIG. 6 is a schematic structural view of the rotary sleeve;

FIG. 7 is a schematic view showing an internal structure of a rotary sleeve;

FIG. 8 is a schematic view of the structure of the decorative cover;

FIG. 9 is a schematic structural diagram of a fixing bracket of the handheld host;

fig. 10 is a schematic view of the engagement between the fixing bracket and the fixing sleeve;

FIG. 11 is a schematic view of the motor and the fixing sleeve;

FIG. 12 is a cross-sectional view of the connecting socket;

FIG. 13 is a schematic structural diagram of a housing of the handheld host;

FIG. 14 is a view showing the fit between the housing and the pouch;

illustration of the drawings: a bending machine head 1; clamping a ring groove 101; a clamp column 102; a fixed sleeve 2; a positioning groove 201; a limit groove 202; a rotating sleeve 3; a card slot 301; an annular boss 302; a decorative cover 4; a planar boss 401; an inclined surface 402; a housing 5; a plastic spring plate 501; a stop rib 502; a fixed bracket 6; a positioning boss 601; a seal ring 7; positioning the steel ball 8; a spring ring 9; a damping ring 10; a motor 11.

Detailed Description

The embodiment of the invention discloses a root canal therapy instrument, which is used for solving the technical problem that when the angle of a bender head is adjusted, a connecting seat is easy to loosen when the traditional root canal therapy instrument rotates.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 14, an endodontic instrument according to the present invention includes:

the bending machine comprises a bending machine head 1, a handheld host and a connecting seat;

the connecting seat comprises a fixed sleeve 2 and a rotating sleeve 3;

the fixed sleeve 2 is fixedly arranged on the handheld host;

the rotary sleeve 3 is coaxially arranged in the fixed sleeve 2, specifically, the middle part and the tail part of the rotary sleeve 3 are positioned in the fixed sleeve 2, and the front end part of the rotary sleeve 3 is positioned outside the fixed sleeve 2;

the rotary sleeve 3 can rotate relative to the fixed sleeve 2, an annular mounting groove is formed in the outer side wall of the rotary sleeve 3 along the circumferential direction of the rotary sleeve, a sealing ring 7 is mounted on the annular mounting groove, the sealing ring 7 can be made of rubber or silica gel and the like, and the side face, far away from the annular mounting groove, of the sealing ring 7 is in contact with the inner side wall of the fixed sleeve 2;

the tail of the bending machine head 1 is connected with the rotary sleeve 3, and preferably, the tail of the bending machine head 1 is detachably connected with the rotary sleeve 3.

It should be noted that, when adjusting the angle of the bending machine head 1, a user only needs to hold the handheld host computer with one hand and rotate the bending machine head 1 with the other hand to completely adjust the angle.

In this embodiment, install sealing washer 7 in the annular mounting groove of swivel nut 3, when swivel nut 3 was in fixed cover 2, sealing washer 7 made swivel nut 3 obtain better support with the produced frictional force of the inside wall contact of fixed cover 2 for swivel nut 3 is more stable when rotatory for fixed cover 2, reduces the not hard up condition of appearance.

Further, the tail of the bender head 1 is in plug fit with the rotary sleeve 3, and specifically, during assembly, the tail of the bender head 1 needs to be inserted into the rotary sleeve 3 for fixation;

a clamping column 102 is arranged at the tail part of the bending machine head 1, and a clamping groove 301 matched with the clamping column 102 is arranged at the front end part of the rotary sleeve 3;

when the bending machine head 1 is inserted into the rotary sleeve 3, the clamping column 102 is clamped into the clamping groove 301.

By the above design, the circumferential position of the bender head 1 and the rotary sleeve 3 can be fixed relative to each other, and the bender head 1 and the rotary sleeve 3 can be rotated in synchronization.

Further, a clamping ring groove 101 is formed in the tail portion of the bending machine head 1 along the circumferential direction of the bending machine head;

the tail of the rotating sleeve 3 is provided with at least one round hole along the circumferential direction, a positioning steel ball 8 is arranged in the round hole, the diameter of the edge of one end, facing the inner side of the rotating sleeve 3, of the round hole is not larger than that of the positioning steel ball 8, the tail of the rotating sleeve 3 is sleeved with a spring ring 9 along the circumferential direction, and the spring ring 9 is pressed against the steel ball towards one side surface of the rotating sleeve 3;

when the tail part of the bending machine head 1 is inserted into the rotating sleeve 3, the positioning steel balls 8 are positioned in the clamping ring groove 101.

It should be noted that, through the above design, the quick installation of the bender head 1 and the rotary sleeve 3 can be completed, specifically, the tail of the bender head 1 is extended into the rotary sleeve 3, and meanwhile, the tail of the bender head 1 pushes the positioning steel ball 8 to move outwards, and when the snap-fit ring groove 101 moves to the position of the circular hole, the positioning steel ball 8 is reset under the elastic action of the spring ring 9 and is matched with the snap-fit ring groove 101, so that the quick installation of the bender head 1 is realized.

Furthermore, the spring ring 9 is provided with an opening hole matched with the positioning steel ball 8, and the diameter of the opening hole is smaller than that of the positioning steel ball 8.

Further, the handheld host comprises a motor 11, a fixed bracket 6 and a shell 5;

the motor 11 is fixedly arranged on the fixed support 6, and the fixed support 6 is fixed in the shell 5;

the fixed sleeve 2 is fixedly connected with the front end part of the motor 11.

It should be noted that the tail of the fixing sleeve 2 is fixedly connected to the front end of the motor 11 by screws.

Further, the decoration cover 4 is also included, and specifically, the decoration cover 4 is in a hollow truncated cone structure;

the decorative cover 4 is in threaded connection with the outer side wall of the front end part of the fixed sleeve 2.

When it is necessary to explain, the decorative cover 4 shields the rotary sleeve 3 and the fixed sleeve 2.

Further, a plane boss 401 is arranged on the inner side wall of the front end part of the decorative cover 4;

the front end part of the rotary sleeve 3 is provided with an annular boss 302 matched with the plane boss 401 along the circumferential direction;

when the decorative cover 4 is fixed to the front end of the fixing sleeve 2, the flat boss 401 contacts with the annular boss 302. Specifically, the top surface of the annular boss 302 contacts with the bottom surface of the planar boss 401, and the bottom surface of the annular boss 302 contacts with the edge of the front end of the fixed sleeve 2, so that the decoration cover 4, the rotary sleeve 3 and the fixed sleeve 2 can be matched more tightly, and the condition of shaking and loosening of the endodontic instrument during adjustment can be reduced.

Further, the inner side wall of the tail part of the decorative cover 4 is provided with an inclined surface 402 along the circumferential direction thereof;

the front end part of the shell 5 is provided with a plurality of plastic elastic sheets 501, and the plurality of plastic elastic sheets 501 are arranged around the front end part of the shell 5;

when the decorative cover 4 is fixed to the front end of the fixing sleeve 2, the inclined surface 402 presses the plastic spring 501, so that the plastic spring 501 moves toward the fixing sleeve 2 to press against the outer side wall of the fixing sleeve 2. In addition, when the cosmetic cover 4 is fixed to the front end portion of the set cover 2, the edge of the tail portion of the cosmetic cover 4 comes into contact with the edge of the front end portion of the housing 5.

It should be noted that, with the above design, the better fixing between the housing 5 and the fixing sleeve 2 can be achieved, and since the edge of the tail of the decorative cover 4 contacts the edge of the front end of the housing 5 when the decorative cover 4 is fixed to the front end of the fixing sleeve 2, the whole connecting seat, the housing 5 and the decorative cover 4 are further ensured not to be loosened back and forth in the axial direction.

Further, a plurality of limiting ribs 502 are arranged on the inner side wall of the front end part of the shell 5;

a plurality of limiting grooves 202 matched with the limiting ribs 502 are formed in the tail part of the fixing sleeve 2;

the limiting rib 502 is engaged with the limiting groove 202.

It should be noted that, through the above design, the relative rotation between the fixing sleeve 2 and the housing 5 is avoided, and the structural stability of the endodontic instrument is effectively ensured.

Further, a plurality of positioning grooves 201 are arranged on the tail part of the fixing sleeve 2;

the front end of the fixing support 6 is provided with a plurality of positioning bosses 601 matched with the positioning grooves 201, and the positioning bosses 601 are clamped in the positioning grooves 201.

It should be noted that, through the above design, the assembling personnel can assemble the fixing sleeve 2 and the fixing bracket 6 more quickly, which is beneficial to improving the assembling efficiency.

Further, the inner side wall of the rotary sleeve 3 is provided with an annular groove along the circumferential direction thereof, and a damping ring 10 is installed in the annular groove.

It should be noted that, when the tail of the bender head 1 is inserted into the rotary sleeve 3, the side surface of the damping ring 10 away from the inner side wall of the rotary sleeve 3 contacts with the tail of the bender head 1, and the bender head 1 generates a certain vibration during operation, so that the vibration can be effectively suppressed by the above design.

While the endodontic instrument of the present invention has been described in detail, those skilled in the art will appreciate that the various modifications, additions, substitutions, and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.