CN209733939U

CN209733939U - oral cavity maxillofacial surgery struts ware

Info

Publication number: CN209733939U
Application number: CN201920280300.8U
Authority: CN
Inventors: 陈海; 杨友谊; 覃有智
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2019-12-06
Anticipated expiration: 2029-03-06

Abstract

The utility model provides an oral cavity maxillofacial surgery struts ware, include: the middle parts of the two rotating arms are hinged with each other; one end of each rotating arm is provided with a supporting part; the angle adjusting sheets are mounted at one ends of the rotating arms, which are far away from the supporting part; the locking assembly is arranged at one end of the other rotating arm, which is far away from the supporting part, the angle adjusting sheet extends to the position of the locking assembly, and a plurality of first clamping teeth are arranged on the side surface, close to the locking assembly, of the angle adjusting sheet; wherein, locking Assembly includes: the ring sleeve can be rotatably arranged on the rotating arm without the angle adjusting sheet, the swinging arm, the elastic sheet and the limiting sheet are fixed with the ring sleeve, and the swinging arm is used for assisting the ring sleeve to rotate. The oral and maxillofacial surgery spreader solves the problem that the replacement cannot be realized after the adjustment meshing piece is damaged in the prior art.

Description

Oral cavity maxillofacial surgery struts ware

Technical Field

the utility model relates to an instrument is used to the department of stomatology, concretely relates to oral cavity maxillofacial surgery struts ware.

background

Chinese patent discloses an oral and maxillofacial surgery distractor with publication number CN205054154U, which comprises a pair of distracting parts, a pair of angle fixing parts, a rotating screw, a pair of oral cavity distracting plates, a plurality of anti-skid convex strips, an angle adjusting sheet, an adjusting meshing sheet, a meshing sheet breaking hand, a meshing sheet top sheet, a first fixing screw and a second fixing screw; the lower ends of the pair of spreading parts are respectively connected with the upper ends of the pair of angle fixing parts, the spreading parts and the angle fixing parts are connected into a supporting main body of an integrated structure, and the lower ends of the pair of spreading parts are connected through the rotating screws, so that the pair of supporting main bodies form an X-shaped structure. Although the positioning and adjustment of the opening angle of the two opening parts are realized by arranging the angle adjusting sheet, the adjusting engagement sheet, the engagement sheet hand wrestling, the engagement sheet top sheet and the like, the following disadvantages still exist:

Because the angle adjusting sheet and the adjusting meshing sheet are meshed in a staggered mode often, teeth of the angle adjusting sheet and teeth of the adjusting meshing sheet rub often relatively, the teeth are broken after being damaged easily, the service lives of the angle adjusting sheet and the adjusting meshing sheet are short, and the angle adjusting sheet and the adjusting meshing sheet cannot be achieved through the existing structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oral and maxillofacial surgery struts ware solves the problem that can not realize changing after adjusting the meshing piece and damaging among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides an oral cavity maxillofacial surgery struts ware, include: the middle parts of the two rotating arms are hinged with each other; one end of each rotating arm is provided with a supporting part; the angle adjusting sheets are mounted at one ends of the rotating arms, which are far away from the supporting part; the locking assembly is arranged at one end of the other rotating arm, which is far away from the supporting part, the angle adjusting sheet extends to the position of the locking assembly, and a plurality of first clamping teeth are arranged on the side surface, close to the locking assembly, of the angle adjusting sheet; wherein, locking Assembly includes: the locking piece, the ring cover, the swing arm, the shell fragment, spacing piece, stop part and coupling mechanism, the ring cover can be installed on the swinging arm of not installing the angle adjustment piece with rotating, be fixed with the swing arm with the ring cover, shell fragment and spacing piece, the swing arm is used for assisting the ring cover rotatory, install a plurality of second latches on the locking piece, second latch and first latch meshing, be provided with the stop part between shell fragment and the spacing piece, the locking piece can be dismantled with the ring cover through coupling mechanism and be connected spacing piece and be located between locking piece and the shell fragment, stop part and ring cover place swinging arm are fixed.

compared with the prior art, the utility model discloses following beneficial effect has:

1) the locking block is kept to tend to rotate towards the angle adjusting sheet under the elastic force of the elastic sheet, so that the second latch can be kept in a state of being meshed with the first latch, the angle can be stably adjusted, and the two rotating arms cannot rotate randomly;

2) The limiting piece is arranged to be matched with the elastic piece and the blocking part, so that the elastic piece has a tendency of driving the ring sleeve to rotate towards the first clamping tooth, namely the elastic piece and the limiting piece clamp the blocking part tightly, and the locking block has a tendency of rotating towards the angle adjusting piece;

3) The latch segment passes through coupling mechanism demountable installation on the swinging boom, has realized changing newly after the second latch damages, has guaranteed the life of other parts such as swinging boom, has avoided the waste, has improved market competition.

additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic structural view of an oral maxillofacial surgical distractor;

FIG. 2 is a front view of the locking assembly of FIG. 1;

FIG. 3 is a rear view of the locking assembly of FIG. 2;

FIG. 4 is a cross-sectional view A-A of the collar of FIG. 3;

FIG. 5 is a cross-sectional view of the attachment mechanism of FIG. 3;

FIG. 6 is a schematic view of a tee ring.

Reference numerals: the locking device comprises a rotating arm 1, an angle adjusting sheet 2, a first latch 21, a supporting part 3, a locking component 4, a locking block 41, a second latch 411, a ring sleeve 42, a T-shaped ring 421, a ring cover 422, a swinging arm 43, an elastic sheet 44, a limiting sheet 45, a blocking part 46, a connecting mechanism 47, an inserting rod 471, a limiting arm 472, a rotating shaft 473, a clamping rod 474, a pressing rod 475, a spring 476, a first screw 5, a first cavity 11, a clamping hole 12 and a second cavity 13.

Detailed Description

in order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 to 6, the utility model provides an oral and maxillofacial surgery spreader, which comprises: the middle parts of the two rotating arms 1 are hinged with each other; one end of each rotating arm 1 is provided with a supporting part 3; the angle adjusting pieces 2 are arranged at one ends of the rotating arms 1 departing from the supporting parts 3; the locking component 4 is arranged at one end of the other rotating arm 1, which is far away from the supporting part 3, the angle adjusting sheet 2 extends to the position of the locking component 4, and a plurality of first clamping teeth 21 are arranged on the side surface, close to the locking component 4, of the angle adjusting sheet 2; wherein the locking assembly 4 comprises: the locking device comprises a locking block 41, a ring sleeve 42, a swinging arm 43, a spring piece 44, a limiting piece 45, a blocking part 46 and a connecting mechanism 47, wherein the ring sleeve 42 is rotatably arranged on a rotating arm 1 without an angle adjusting piece 2, the swinging arm 43, the spring piece 44 and the limiting piece 45 are fixed with the ring sleeve 42, the swinging arm 43 is used for assisting the ring sleeve 42 to rotate, a plurality of second clamping teeth 411 are arranged on the locking block 41, the second clamping teeth 411 are meshed with the first clamping teeth 21, the blocking part 46 is arranged between the spring piece 44 and the limiting piece 45, the locking block 41 is detachably connected with the ring sleeve 42 through the connecting mechanism 47, the limiting piece 45 is positioned between the locking block 41 and the spring piece 44, and the blocking part 46 is fixed with the rotating arm 1 where the ring sleeve 42.

To enable the removable mounting of the resilient tab 44, the collar 42 includes: the T-shaped ring 421 and the ring cover 422, the big end of the T-shaped ring 421 is located at the small end of the T-shaped ring 421 close to the side of the rotating arm 1, the small end of the T-shaped ring 421 is connected with the ring cover 422 in a threaded manner, the elastic sheet 44 is L-shaped, the end face of the small end of the T-shaped ring 421 is recessed to form a slot, the slot is L-shaped, the slot is used for allowing the elastic sheet 44 to be inserted in a direction parallel to the central line of the ring sleeve 42, the elastic sheet 44 is pressed on the T-shaped ring 421 by the ring cover 422, the sliding of the elastic sheet 44 in the slot is avoided, and the elastic sheet 44 is. The t-shaped ring 421 and the ring cover 422 are fastened together to form an annular structure, the limiting plate 45 and the swing arm 43 are fixed to the side wall of the t-shaped ring 421, and the locking block 41 is mounted on the ring cover 422 through the connecting mechanism 47.

In order to design the connection mechanism 47 having a simple structure and convenient use, the connection mechanism 47 includes: an inserting rod 471, a limiting arm 472, a rotating shaft 473, a clamping rod 474, a pressing rod 475 and a spring 476, wherein the inserting rod 471 is installed on the end surface of the ring cover 422 far away from the T-shaped ring 421, the inserting rod 471 is used for being inserted into one end of the locking block 41, the locking block 41 cannot rotate relative to the inserting rod 471, the rotating shaft 473 is installed on the inserting rod 471, the rotating shaft 473 can rotate, a first cavity 11 is formed in the inserting rod 471, the first cavity 11 is inserted by one end of the rotating shaft 473, a second cavity 13 is formed in the rotating shaft 473 and is positioned beside the first cavity 11, the first cavity 11 is communicated with the second cavity 13 through a clamping hole 12, the clamping hole 12 and the second cavity 13 are used for inserting one end of the clamping rod 474, the clamping rod 474 cannot rotate in the clamping hole 12, the clamping rod 474 can rotate in the second cavity 13, the other end of the clamping rod 474 is fixed to one end of the pressing rod 475, the other end of the pressing rod 475 penetrates out of the inserting rod 475, the, a spring 476 is located in the first cavity 11, one end of the spring 476 being fixed to one end of the chucking rod 474 and the other end of the spring 476 being fixed to the inner wall of the first cavity 11. When the locking block 41 is in the installed state, the stopper arm 472 is perpendicular to the insertion rod 471, the stopper arm 472 and the ring cover 422 clamp the locking block 41, the locking rod 474 is positioned in the locking hole 12 under the elastic force of the spring 476, the locking rod 474 locks the rotation shaft 473, and the rotation shaft 473 and the stopper arm 472 cannot rotate relative to the insertion rod 471 because the pressing rod 475 and the locking rod 474 cannot rotate relative to the insertion rod 471. When the locking block 41 needs to be detached, the pressing rod 475 is pressed, so that the clamping rod 474 extends into the second cavity 13, the clamping rod 474 is not in contact with the inner wall of the second cavity 13, meanwhile, the pressing rod 475 is smaller than the clamping rod 474, and the pressing rod 475 is positioned in the clamping hole 12, so that the pressing rod 475 can rotate in the clamping hole 12, the clamping hole 12 is formed in the rotating shaft 473, and the clamping rod 474 can rotate in the second cavity 13, so that the pressing rod 475, the clamping rod 474 and the inserting rod 471 can rotate relative to the rotating shaft 473 and the limiting arm 472, the limiting arm 472 can rotate to a position parallel to the inserting rod 471, and the locking block 41 can be detached.

in the process of detaching the elastic piece 44, in order to prevent the angle-adjusting piece 2 from blocking the locking block 41 on the middle rotating ring 42, the locking block 41 needs to be detached from the ring 42 first, so that the ring 42 can be covered.

In order to realize the detachability of the angle adjusting piece 2, one end of the angle adjusting piece 2 is mounted on the rotating arm 1 through a first screw 5.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. An oral maxillofacial surgical distractor, comprising:

the middle parts of the two rotating arms are hinged with each other;

One end of each rotating arm is provided with a supporting part;

The angle adjusting sheets are mounted at one ends of the rotating arms, which are far away from the supporting part; and

The locking assembly is arranged at one end of the other rotating arm, which is far away from the supporting part, the angle adjusting sheet extends to the position of the locking assembly, and a plurality of first clamping teeth are arranged on the side surface, close to the locking assembly, of the angle adjusting sheet;

wherein, locking Assembly includes: the locking piece, the ring cover, the swing arm, the shell fragment, spacing piece, stop part and coupling mechanism, the ring cover can be installed on the swinging arm of not installing the angle adjustment piece with rotating, be fixed with the swing arm with the ring cover, shell fragment and spacing piece, the swing arm is used for assisting the ring cover rotatory, install a plurality of second latches on the locking piece, second latch and first latch meshing, be provided with the stop part between shell fragment and the spacing piece, the locking piece can be dismantled with the ring cover through coupling mechanism and be connected spacing piece and be located between locking piece and the shell fragment, stop part and ring cover place swinging arm are fixed.

2. The oromaxillofacial surgical distractor of claim 1, wherein the collar comprises: the large end of the T-shaped ring is located on one side, close to the rotating arm, of the small end of the T-shaped ring, the small end of the T-shaped ring is in threaded connection with the ring cover, the elastic sheet is L-shaped, the end face of the small end of the T-shaped ring is sunken to form an insertion groove, the insertion groove is L-shaped and is used for allowing the elastic sheet to be inserted from the direction parallel to the central line of the ring cover, and the elastic sheet is tightly pressed on the T-shaped ring by the ring cover.

3. The oromaxillofacial surgical distractor of claim 2, wherein the attachment mechanism comprises: the locking device comprises an insertion rod, a limiting arm, a rotating shaft, a clamping rod, a pressing rod and a spring, wherein the insertion rod is arranged on the end surface of the ring cover, which is far away from the T-shaped ring, the insertion rod is used for being inserted into one end of a locking block, the locking block cannot rotate relative to the insertion rod, the insertion rod is provided with the rotating shaft which can rotate, the clamping rod comprises an insertion rod, a first cavity, a second cavity and a spring, wherein the first cavity is formed in the insertion rod, one end of the rotating shaft extends into the first cavity, the second cavity is formed in the rotating shaft and is located beside the first cavity, the first cavity is communicated with the second cavity through a clamping hole, one end of the clamping rod extends into the clamping hole and the second cavity, the clamping rod cannot rotate in the clamping hole, the clamping rod can rotate in the second cavity, the other end of the clamping rod is fixed to one end of a pressing rod, the other end of the pressing rod penetrates out of the insertion rod, the pressing rod cannot rotate relative to the insertion rod, the spring is located in the first cavity, one end of the spring is fixed to one end of the clamping rod, and the other end of the.

4. the oromaxillofacial surgical distractor of claim 3, wherein the angle adjustment tab is mounted at one end to the pivot arm by a first screw.