WO2017156749A1 - 内窥镜的微调机构 - Google Patents

内窥镜的微调机构 Download PDF

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Publication number
WO2017156749A1
WO2017156749A1 PCT/CN2016/076602 CN2016076602W WO2017156749A1 WO 2017156749 A1 WO2017156749 A1 WO 2017156749A1 CN 2016076602 W CN2016076602 W CN 2016076602W WO 2017156749 A1 WO2017156749 A1 WO 2017156749A1
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WO
WIPO (PCT)
Prior art keywords
insert
rotating
hole
rotary
fine adjustment
Prior art date
Application number
PCT/CN2016/076602
Other languages
English (en)
French (fr)
Inventor
晏江帆
钟泉
马天悦
王中开
Original Assignee
深圳市亚泰光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市亚泰光电技术有限公司 filed Critical 深圳市亚泰光电技术有限公司
Priority to EP16893914.8A priority Critical patent/EP3430968B1/en
Priority to PCT/CN2016/076602 priority patent/WO2017156749A1/zh
Publication of WO2017156749A1 publication Critical patent/WO2017156749A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0052—Constructional details of control elements, e.g. handles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0057—Constructional details of force transmission elements, e.g. control wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/30—Surgical robots
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/70—Manipulators specially adapted for use in surgery
    • A61B34/71—Manipulators operated by drive cable mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/30—Surgical robots
    • A61B2034/301—Surgical robots for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes

Definitions

  • the present invention relates to an endoscope structure, and more particularly to a precision fine adjustment mechanism of an endoscope.
  • the endoscope is a multi-disciplinary and universal tool. Its function is to be able to probe deep into the curved pipe, to observe the parts that cannot be directly seen, and to observe the internal space structure and state in the sealed cavity. Achieve long-distance observation and operation. With the rapid development of industrial technology, the use of instruments in various industries has become more and more frequent, and the health status of inspection instruments is particularly important. Industrial inspections have gradually emerged in the industry. Endoscopes are an integral part of the industrial testing community.
  • the arbitrarily rotating endoscope is the most common one, generally adopting an electric drive, and the electric steering mechanism adopts a micro-rudder, four wire traction, flexible rotation, and precise control.
  • the four steel wire traction wires in the endoscope will have relaxation and fatigue effects, which are affected by the thermal expansion and contraction, the tensile load of the steel wire rope, and the use of the steel wire rope.
  • the present application provides a novel fine adjustment mechanism for an endoscope.
  • the fine adjustment mechanism shown in the present application includes:
  • a rotating insert having a first positioning portion and a mounting portion for connecting the bowing wire;
  • a rotor body the rotary insert is rotatably mounted on the rotor body, and the rotary insert Moving relative to the wheel body in the direction of its center of rotation, having a first position for locking the rotating insert and a second position for unlocking the rotating insert on the moving track, and the rotating insert is Positioned in the first position;
  • the cover plate is fixed relative to the rotor body, the rotating insert is located between the cover plate and the runner body; the cover plate has at least two second positioning portions, the at least two The second positioning portion is disposed around the rotation center line of the rotating insert; when the rotating wheel body moves to the first position ⁇ , the first positioning portion and one of the second positioning portions form a concave-convex fit; when the rotating wheel body Moving to the second position ⁇ , the first positioning portion and the second positioning portion are disengaged.
  • the rotating insert has a protruding vertical end
  • the rotating wheel body has a rotating wheel
  • the vertical end of the rotating insert is inserted into the rotating hole of the rotating wheel
  • the elastic member is disposed between the hole wall and the vertical end of the rotary hole of the runner.
  • the elastic member is coupled to the rotary insert, and the restoring force of the elastic member constantly drives the rotary insert to move toward the cover plate.
  • the cover plate has a cover through hole
  • the rotary insert has a boss for operating rotation of the rotary insert, and the boss is exposed from the through hole of the cover plate .
  • the fine adjustment mechanism includes a rotary insert, a runner body, and a cover plate.
  • the rotary insert has a first positioning portion and is rotatably mounted on the rotor body and movable relative to the rotor body in the direction of its center of rotation.
  • the cover plate is fixed relative to the rotor body, the cover plate having at least two second positioning portions disposed about a center of rotation of the rotary insert.
  • the rotary insert is moved to the second position to disengage the first positioning portion and the second positioning portion, and then the rotary insert can be rotated by a certain angle, and then moved to the first position to make the first The positioning portion cooperates with the next second positioning portion to achieve fine adjustment.
  • FIG. 1 is a schematic structural view of an embodiment of a fine adjustment mechanism of an endoscope of the present application
  • Figure 2 is a cross-sectional view showing the exploded state of the embodiment shown in Figure 1;
  • FIG. 3 is a schematic structural view of an embodiment of a rotary insert of the present application.
  • FIG. 4 is a schematic structural view of another embodiment of a rotary insert of the present application.
  • FIG. 5 is a schematic structural view of an embodiment of a runner body of the present application;
  • Figure 6 is a cross-sectional view of the runner body of Figure 5;
  • FIG. 7 is a schematic structural view of an embodiment of a cover plate of the present application.
  • FIG. 8 is a schematic structural view of another embodiment of the fine adjustment mechanism of the present application.
  • FIG. 9 is a cross-sectional view of the rotor body of the embodiment shown in FIG. 8.
  • This embodiment discloses a fine adjustment mechanism of an endoscope.
  • the fine tuning mechanism includes:
  • a rotating insert 100 having a first positioning portion 102 and a mounting portion for connecting the pull wire 600;
  • the rotor body 200 is rotatably mounted on the rotor body 200, and the rotary insert 100 is movable relative to the wheel body 200 in the direction of its center of rotation.
  • a first position for locking the rotary insert 100 and a second position for unlocking the rotary insert 100 are provided on the moving track, and the rotary insert 100 is positionable in the first position;
  • a cover plate 300 that is fixed relative to the wheel body 200, and the rotary insert 100 is located between the cover plate 300 and the wheel body 200.
  • the cover plate 300 has at least two second positioning portions 301 disposed around the center of rotation of the rotary insert 100.
  • the rotary insert 100 is moved to the second position to disengage the first positioning portion 102 and the second positioning portion 301, and then the rotary insert 100 can be rotated by a certain angle, and then moved In the first position, the first positioning portion 102 is engaged with the next second positioning portion 301, thereby achieving fine adjustment.
  • first positioning portion 102 and the second positioning portion 301 form a concave-convex fit means that one of the two is provided with a convex-shaped member, and the other is provided with a concave-shaped member, which may be a blind hole or The through hole, the convex shaped member and the recessed shaped member are positioned to cooperate with each other.
  • the rotating insert 100 is positioned in the first position by manual or automatic positioning by a special positioning structure, such as a screw, a snap connection, or the like, or may be positioned by a pre-tightening force, such as an elastic member.
  • a special positioning structure such as a screw, a snap connection, or the like
  • a pre-tightening force such as an elastic member.
  • the elastic member 500 is coupled to the rotating insert 100, and the restoring force of the elastic member 500 always drives the rotating insert 100 to move toward the cover plate 300.
  • the rotary insert 100 can be provided with a protruding end 106, the runner body 200 has The rotary hole 204, the vertical end 106 of the rotary insert 100 is inserted into the rotary hole 204, and the elastic member 500 is disposed between the hole wall and the vertical end 106 of the rotary hole 204, possibly on the runner Between the bottom wall of the bore 204 and the bottom wall of the riser 106, or other locations.
  • the standing end 106 may be columnar, specifically cylindrical, prismatic or cylindrical, and the shape of the runner hole 204 is matched with the vertical end 106, ensuring that the standing end 106 can be free at the runner hole 204. Rotate.
  • the elastic member 500 When the positioning post 102 is inserted into the positioning hole 301 of the cover plate 300, the elastic member 500 is in a natural state or a slightly compressed state, and the fine adjustment mechanism is in a locked state. When the positioning post 102 is disengaged from the positioning hole 301, the elastic member 500 is at In the compressed state, the fine adjustment mechanism is in the adjusted state.
  • the mounting portion is used to fix the traction line 600.
  • the mounting portion can be designed as a mounting hole provided in the standing end 106.
  • the mounting hole may include an insert circular hole 101 and an insert counterbore 105, the insert circular hole 101 being coaxial with the insert counterbore 105, the diameter of the insert counterbore 105 being larger than the diameter of the insert circular hole 101 .
  • the pull wire 600 is secured in the insert counterbore 105 by rotating the insert aperture 101 of the insert 100.
  • the reel body 200 has a gap intersecting the runner rotation hole 204.
  • the traction wire 600 protrudes from the gap, as shown in FIG. .
  • the cover plate 300 has a cover through hole 302 having a convexity for operating the rotation of the rotary insert 100.
  • the stage 104, the boss 104 is exposed from the cover through hole 302.
  • the end surface of the boss 104 may be provided with a blade-shaped, in-line, cross-shaped, square or hexagonal groove 107 for cooperation with a common tool, such as a screwdriver, a square column or a hexagonal prism.
  • the rotary insert 100 can be manipulated to rotate by pressing the same of the rotary insert 100.
  • the outer wall of the boss 104 may be formed into a shape of a hexagonal prism, a triangular prism, a quadrangular pyramid or the like, and it is also convenient to use a tool to manipulate the rotation of the rotary insert 100.
  • the rotating insert 100 may further include an end disc 103 disposed on one side of the end disc 103, the first certain The position portion 102 is a positioning post (hereinafter indicated by 102), the second positioning portion 301 is a positioning hole (indicated by 301), and the positioning post 102 and the boss 104 are disposed on the other side of the end disc 103, as shown by 2, rotating
  • the profile of the insert 100 is similar to a T-shape.
  • first positioning portion as a positioning hole and the second positioning portion as a positioning post.
  • the positioning posts 102 may be 1 to 4, or more, which are evenly distributed along the circumference. Positioning post 102 and boss
  • the thickness of 104 is adapted to the thickness of the cover plate 300 to be slightly larger than, slightly less than or equal to the thickness of the cover plate 300.
  • the reel body 200 may have a cup-shaped body, the reel hole 204 is disposed on the bottom wall 205 of the cup, and the cover 300 is fixedly disposed on the cup.
  • the rotating insert 100 is disposed on the bottom wall of the cup
  • the 205 and the cover plate 300 are enclosed in a cavity.
  • the cover plate 300 may be a disc-shaped body, and the runner body 200 is provided with a sinking groove at the end, and the depth of the sinking groove and the cover 30
  • the cover plate 300 is fixed to the sinking groove.
  • the bottom wall 205 of the cup may be provided with a counter counterbore 203, and the end plate 1 of the rotating insert 100
  • the end plate 103 of the rotating insert 100 may be a disc as shown in FIG. 3, or a disc structure such as a waist disc as shown in FIG. 4, as long as the rotating insert 100 is ensured
  • the rotation of the runner counterbore 203 can be performed.
  • the corresponding other structures are represented as two sets, and in other embodiments, the selected inserts may be one or more.
  • This r is the distance from the center of the positioning hole 301 to the center of the through hole 302 of the cover.
  • the elastic member 500 When the positioning post 102 is inserted into the positioning hole 301 in the cover 300, the elastic member 500 is in a natural state or a slightly compressed state, and the fine adjustment mechanism is in a locked state. When the positioning post 102 is disengaged from the positioning hole 301, the elastic member 500 is in a compressed state, and is respectively abutted against the bottom end of the standing end 106 and the revolving hole 204, and the fine adjustment mechanism is in an adjusted state.
  • the runner hole 204 may be a blind hole formed by the body of the runner body 200, and the bottom wall of the runner hole 204 is its own bottom wall.
  • the runner rotary hole 2 04 is formed by the engagement of the threaded fastener 400 with the rotor body 200. Thereafter, the bottom wall of the runner bore 204 is the top end of the threaded fastener 400.
  • the threaded fastener 400 is a fixing bolt that engages with the internal thread of the runner hole 204; the elastic member 500 is placed in the runner hole 204, and the elastic member 500 ends against the threaded fastener 400, and is elastic The other end of the member 500 is offset from the vertical end 106.
  • the auxiliary tool is inserted into the groove 107, and the rotating insert 100 is pressed downwardly, so that the positioning post 102 and the boss 104 are separated from the positioning hole 301 and the cover through hole 302, respectively. ⁇ , the elastic member 500 is in a compressed state.
  • the traction wire 600 follows the vertical end 106 and gradually pulls the traction wire 600 until the traction wire 600 changes from the original relaxed state to the tightened state.
  • the auxiliary tool is withdrawn, the rotating insert 100 is pushed out to the outside under the elastic force of the elastic member 500, and the positioning post 102 and the boss 104 are reinserted into the positioning hole 301 and the cover through hole 302 to complete the fine adjustment process.
  • the production of the fine adjustment mechanism is less difficult and the cost is reduced.
  • the positioning post and the positioning hole are matched by the plug-in type, and the structure is precise and the stability is high, which avoids Defects in the sliding teeth.
  • the prior art cannot quantitatively realize the fine adjustment, and the grasp of the number of teeth cannot be accurately controlled.
  • the positioning column moves under the through hole, and when the fine adjustment requirement is achieved, the positioning column is inserted and positioned. Holes, holes and holes, to achieve quantitative fine-tuning, precise angle control.

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Abstract

一种微调机构，包括旋转镶件(100)、转轮主体(200)和盖板(300)。该旋转镶件(100)具有第一定位部(102)，并以可旋转地方式安装在转轮主体(200)上，且可沿其旋转中心线方向相对转轮主体(200)移动。盖板(300)相对转轮主体(200)固定，盖板(300)具有至少两个第二定位部(301)，该至少两个第二定位部(301)环绕旋转镶件(100)的旋转中心线设置。当转轮主体(200)移动到第一位置时，第一定位部(102)和其中一个第二定位部(301)形成凹凸配合；当转轮主体(200)移动到第二位置时，第一定位部(102)和第二定位部(301)脱离。在需要微调时，将旋转镶件(100)移动至第二位置，使第一定位部(102)和第二定位部(301)脱离，然后可将旋转镶件(100)旋转一定角度，然后在将其移动到第一位置，使第一定位部(102)与下一个第二定位部(301)配合，从而实现微调。

Description

说明书 发明名称：内窥镜的微调机构 技术领域
[0001] 本发明涉及一种内窥镜结构， 特别是涉及一种内窥镜的精密微调机构。
[0002] 背景技术
[0003] 内窥镜， 是一种多学科通用的工具， 其功能是能对弯曲管道深处探査， 能观察 不能直视到的部位， 能在密封空腔内观察内部空间结构与状态， 能实现远距离 观察与操作。 随着工业技术的迅猛发展， 各行各业仪器的使用越来越频繁， 检 测仪器的健康状况显得尤为重要， 工业检测逐渐在行业中崭露头角。 内窥镜是 工业检测大家庭中不可或缺的一部分。
[0004] 在内窥镜种类中， 任意向转动内窥镜是最为普遍的一种， 一般采用电动式驱动 ， 电动式转向机构采用微型舵机， 四根钢丝牵引， 转动灵活， 控制精确。 但是 在前期的安装过程和后期的长期的使用过程中， 内窥镜中的四根钢丝牵引线， 会出现松弛和疲劳效应， 受热胀冷缩的影响， 钢丝绳的拉伸载荷、 钢丝绳使用 中的弯曲半径、 曳引轮材质及槽型、 钢丝绳本身的材质及钢丝绳的使用与维护 中， 钢丝牵引线和相应的牵引机构会出现松弛现象， 使得内窥镜无法精确执行 相应命令， 而造成仪器的无法使用。 同吋， 在前期的仪器装配过中， 微调装置 的使用， 大大降低了工序的复杂性和安装的困难度， 所以非常有必要在仪器的 使用过程中添加一种微调装置。
[0005] 在现有的内窥镜微调技术中， 通常是采用齿轮啮合的方式用于锁定和微调， 该 结构在所使用零件的加工过程中， 零件的齿轮内齿和外齿的结构设计过于复杂 ， 由于体积微小， 内齿和外齿的加工成本较高。
[0006] 发明内容
[0007] 本申请提供一种新型的内窥镜的微调机构。
[0008] 本申请所示的微调机构， 包括：
[0009] 旋转镶件， 所述旋转镶件具有第一定位部和用于连接牵弓 I线的安装部；
[0010] 转轮主体， 所述旋转镶件以可旋转地方式安装在转轮主体上， 且所述旋转镶件 可沿其旋转中心线方向相对转轮主体移动， 在所述移动的轨迹上具有用于锁定 旋转镶件的第一位置和用于解锁旋转镶件的第二位置， 并且所述旋转镶件可定 位在第一位置；
[0011] 以及盖板， 所述盖板相对转轮主体固定， 所述旋转镶件位于盖板和转轮主体之 间； 所述盖板具有至少两个第二定位部， 所述至少两个第二定位部环绕旋转镶 件的旋转中心线设置； 当所述转轮主体移动到第一位置吋， 所述第一定位部和 其中一个第二定位部形成凹凸配合； 当所述转轮主体移动到第二位置吋， 所述 第一定位部和第二定位部脱离。
[0012] 作为所述微调机构的进一步改进， 所述旋转镶件具有凸出设置的立端， 所述转 轮主体具有转轮转孔， 所述旋转镶件的立端插入转轮转孔内； 所述弹性件设置 在转轮转孔的孔壁与立端之间。
[0013] 作为所述微调机构的进一步改进， 所述弹性件与旋转镶件连接， 所述弹性件的 回复力始终驱使旋转镶件向盖板方向移动。
[0014] 作为所述微调机构的进一步改进， 所述盖板具有盖板通孔， 所述旋转镶件具有 用于操作旋转镶件旋转的凸台， 所述凸台从盖板通孔中露出。
[0015] 该微调机构包括旋转镶件、 转轮主体和盖板。 该旋转镶件具有第一定位部， 并 以可旋转地方式安装在转轮主体上， 且可沿其旋转中心线方向相对转轮主体移 动。 盖板相对转轮主体固定， 盖板具有至少两个第二定位部， 该至少两个第二 定位部环绕旋转镶件的旋转中心线设置。 当转轮主体移动到第一位置吋， 第一 定位部和其中一个第二定位部形成凹凸配合； 当转轮主体移动到第二位置吋， 第一定位部和第二定位部脱离。 在需要微调吋， 将旋转镶件移动至第二位置， 使第一定位部和第二定位部脱离， 然后可将旋转镶件旋转一定角度， 然后在将 其移动到第一位置， 使第一定位部与下一个第二定位部配合， 从而实现微调。
[0016] 附图说明
[0017] 图 1是本申请内窥镜的微调机构一种实施例的结构示意图；
[0018] 图 2是图 1所示实施例分解状态的剖视图；
[0019] 图 3为本申请旋转镶件一种实施例的结构示意图；
[0020] 图 4为本申请旋转镶件另一种实施例的结构示意图； [0021] 图 5为本申请转轮主体一种实施例的结构示意图；
[0022] 图 6为图 5所示转轮主体的剖视图；
[0023] 图 7为本申请盖板一种实施例的结构示意图；
[0024] 图 8为本申请微调机构另一种实施例的结构示意图；
[0025] 图 9为图 8所示实施例中转轮主体的剖视图。
[0026] 具体实施方式
[0027] 实施例 1 :
[0028] 本实施例公幵一种内窥镜的微调机构。
[0029] 请参考图 1和 2， 该微调机构包括：
[0030] 旋转镶件 100， 该旋转镶件 100具有第一定位部 102和用于连接牵引线 600的安装 部；
[0031] 转轮主体 200， 该旋转镶件 100以可旋转地方式安装在转轮主体 200上， 且旋转 镶件 100可沿其旋转中心线方向相对转轮主体 200移动。 在移动的轨迹上具有用 于锁定旋转镶件 100的第一位置和用于解锁旋转镶件 100的第二位置， 并且旋转 镶件 100可定位在第一位置；
[0032] 以及盖板 300， 该盖板 300相对转轮主体 200固定， 旋转镶件 100位于盖板 300和 转轮主体 200之间。 盖板 300具有至少两个第二定位部 301， 该至少两个第二定位 部 301环绕旋转镶件 100的旋转中心线设置。 当转轮主体 200移动到第一位置吋， 第一定位部 102和其中一个第二定位部 301形成凹凸配合； 当转轮主体 200移动到 第二位置吋， 第一定位部 102和第二定位部 301脱离。
[0033] 在需要微调吋， 将旋转镶件 100移动至第二位置， 使第一定位部 102和第二定位 部 301脱离， 然后可将旋转镶件 100旋转一定角度， 再然后在将其移动到第一位 置， 使第一定位部 102与下一个第二定位部 301配合， 从而实现微调。
[0034] 其中， 第一定位部 102和第二定位部 301形成凹凸配合是指， 两者其中之一设置 有凸起形状的部件， 而另一个设置有凹陷形状的部件， 可能是盲孔或者通孔， 该凸起形状的部件和凹陷形状的部件相互配合进行定位。
[0035] 旋转镶件 100定位在第一位置可通过专门的定位结构人工或自动定位， 如螺钉 、 卡接等结构， 也可能是通过预紧力进行定位， 如弹性件等。 [0036] 具体地， 以一种弹性件为例， 请参考图 2， 该弹性件 500与旋转镶件 100连接， 弹性件 500的回复力始终驱使旋转镶件 100向盖板 300方向移动。
[0037] 要保持弹性件 500的回复力始终驱使旋转镶件 100向盖板 300方向移动， 请继续 参考图 2， 可使旋转镶件 100具有凸出设置的立端 106， 转轮主体 200具有转轮转 孔 204， 该旋转镶件 100的立端 106插入转轮转孔 204内， 该弹性件 500设置在转轮 转孔 204的孔壁与立端 106之间， 可能是设置在转轮转孔 204的底壁和立端 106的 底壁之间， 或者也可能是其他位置。
[0038] 该立端 106可以为柱状， 具体地可以为圆柱、 棱柱或类圆柱形， 而转轮转孔 204 的形状则与立端 106匹配， 保证立端 106可在转轮转孔 204自由旋转。
[0039] 当定位柱 102插入盖板 300上的定位孔 301中吋， 弹性件 500处于自然状态或略微 压缩状态， 微调机构处于锁定状态， 当定位柱 102脱离定位孔 301吋， 弹性件 500 处于压缩状态， 微调机构处于调整状态。
[0040] 请参考图 3和 8， 安装部用于固定牵引线 600。 具体来说， 该安装部可以设计为 设置在立端 106上的安装孔。 进一步地， 该安装孔可以包括镶件圆孔 101和镶件 沉孔 105， 镶件圆孔 101与镶件沉孔 105同轴， 镶件沉孔 105的直径大于镶件圆孔 1 01的直径。 牵引线 600通过旋转镶件 100的镶件圆孔 101后， 固定在镶件沉孔 105 中。
[0041] 而该转轮主体 200具有一圈与转轮转孔 204相交的间隙， 当立端 106插入转轮转 孔 204后， 牵引线 600从所述间隙中伸出， 如图 2所示。
[0042] 进一步地， 为了该微调机构便于调节， 请参考图 1、 2、 3、 7， 盖板 300具有盖 板通孔 302， 该旋转镶件 100具有用于操作旋转镶件 100旋转的凸台 104， 凸台 104 从盖板通孔 302中露出。
[0043] 进而， 凸台 104的端面可能设置有刀形、 一字形、 十字形、 方形或六棱形的凹 槽 107， 以便于与常用工具进行配合， 例如螺丝刀、 方柱或六棱柱等， 在按下旋 转镶件 100的同吋可操控旋转镶件 100转动。
[0044] 此外， 也可将凸台 104的外壁做成六棱柱、 三棱柱、 四棱锥等形状， 同样也可 便于利用工具来操控旋转镶件 100转动。
[0045] 该旋转镶件 100还可以包括端盘 103， 该立端 106设置在端盘 103的一侧， 第一定 位部 102为定位柱 （以下用 102表示） ， 第二定位部 301为定位孔 （用 301表示） ， 定位柱 102和凸台 104设置在端盘 103的另一侧， 如 2所示， 旋转镶件 100的剖面 类似 T字形。
[0046] 或者， 在其他实施例中， 也可能将第一定位部设计为定位孔， 而第二定位部设 计为定位柱。
[0047] 该定位柱 102可能为 1〜4个， 或者更多， 其沿圆周均匀分布。 定位柱 102和凸台
104的厚度与盖板 300的厚度相适应， 为略大于、 略小于或等于盖板 300的厚度。
[0048] 请参考图 5和 6， 该转轮主体 200可以具有杯状体， 该转轮转孔 204设置在杯状体 的底壁 205， 而盖板 300固定盖设在杯状体上， 旋转镶件 100设置在杯状体的底壁
205和盖板 300围成的腔体中。
[0049] 该盖板 300可以为圆盘状体， 转轮主体 200—端设有沉槽， 沉槽的深度与盖板 30
0相适应， 该盖板 300与沉槽固连。
[0050] 进一步地， 杯状体的底壁 205可以设置有转轮沉孔 203， 该旋转镶件 100的端盘 1
03容置在转轮沉孔 203内。
[0051] 其中， 旋转镶件 100的端盘 103可能是如图 3所示的圆盘， 也可能是如图 4所示的 腰形盘等类圆盘结构， 只要保证旋转镶件 100可在转轮沉孔 203内旋转即可。
[0052] 在本实施例中， 旋转镶件 100为两个， 因此， 对应的其他结构均表示为两组， 而在其他实施例中选择镶件可能为一个或多个。
[0053] 在实际的结构原理中， 定位孔 301的个数 （设定为 N) 越多， 则可调节的精度就 越高， 我们设其最小调节的精度为 Φ， 贝 1」Φ=360/Ν,牵引线 600的最小微调量 L= t*r
*Φ/180。 该 r为定位孔 301圆心到盖板通孔 302圆心的距离。
[0054] 当定位柱 102插入盖板 300上的定位孔 301中吋， 弹性件 500处于自然状态或略微 压缩状态， 微调机构处于锁定状态。 当定位柱 102脱离定位孔 301吋， 弹性件 500 处于压缩状态， 分别与立端 106和转轮转孔 204的底壁相抵持， 微调机构处于调 整状态。
[0055] 当然， 如图 2所示， 该转轮转孔 204可能是转轮主体 200—体成型的一个盲孔， 转轮转孔 204的底壁即为本身的底壁。
[0056] 或者， 在某些实施例中， 为方便更换弹性件 500， 如图 8和 9所示， 该转轮转孔 2 04是由螺纹紧固件 400与转轮主体 200配合形成， 此吋， 转轮转孔 204的底壁即为 螺纹紧固件 400的顶端。
[0057] 该螺纹紧固件 400为固定螺栓， 与转轮转孔 204的内螺纹啮合； 弹性件 500置于 转轮转孔 204中， 弹性件 500—端抵住螺纹紧固件 400， 弹性件 500另一端与立端 1 06相抵。
[0058] 在使用过程中， 使用辅助工具插入凹槽 107中， 并用力向下压旋转镶件 100， 使 定位柱 102和凸台 104分别脱离定位孔 301和盖板通孔 302， 与此同吋， 弹性件 500 处于压缩状态， 通过调整旋转镶件 100转动， 牵引线 600跟随立端 106转动， 并逐 渐拉伸牵引线 600， 直到牵引线 600由原来松弛的状态变为绷紧状态， 达到符合 绷紧程度吋， 撤回辅助工具， 旋转镶件 100在弹性件 500的弹力作用下向外侧推 出， 定位柱 102和凸台 104重新插入定位孔 301和盖板通孔 302中， 完成微调过程
[0059] 和现有的技术中的内齿和外齿的加工相比， 本微调机构的生产难度降低， 成本 随之降低。 现有的技术中的内齿和外齿的啮合过程中会有滑齿现象， 本发明中 的定位柱和定位孔之间通过插拔式的孔孔配合， 结构精密， 稳定性高， 避免了 滑齿的缺陷。 同吋， 在微调环节， 现有技术无法定量实现微调， 齿数的把握无 法精确控制， 本发明中， 通过转动旋转镶件， 定位柱在通孔下移动， 当实现微 调要求吋， 定位柱插入定位孔， 孔孔配合， 实现定量微调、 角度精确控制。
[0060] 以上应用了具体个例对本发明进行阐述， 只是用于帮助理解本发明并不用以限 制本发明。 对于本领域的一般技术人员， 依据本发明的思想， 可以对上述具体 实施方式进行变化。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种内窥镜的微调机构， 其特征在于， 包括：
旋转镶件， 所述旋转镶件具有第一定位部和用于连接牵弓 I线的安装部 转轮主体， 所述旋转镶件以可旋转地方式安装在转轮主体上， 且所述 旋转镶件可沿其旋转中心线方向相对转轮主体移动， 在所述移动的轨 迹上具有用于锁定旋转镶件的第一位置和用于解锁旋转镶件的第二位 置， 并且所述旋转镶件可定位在第一位置；
以及盖板， 所述盖板相对转轮主体固定， 所述旋转镶件位于盖板和转 轮主体之间； 所述盖板具有至少两个第二定位部， 所述至少两个第二 定位部环绕旋转镶件的旋转中心线设置； 当所述转轮主体移动到第一 位置吋， 所述第一定位部和其中一个第二定位部形成凹凸配合； 当所 述转轮主体移动到第二位置吋， 所述第一定位部和第二定位部脱离。
[权利要求 2] 如权利要求 1所述的微调机构， 其特征在于， 还包括弹性件， 所述弹 性件与旋转镶件连接， 所述弹性件的回复力始终驱使旋转镶件向盖板 方向移动。
[权利要求 3] 如权利要求 2所述的微调机构， 其特征在于， 所述旋转镶件具有凸出 设置的立端， 所述转轮主体具有转轮转孔， 所述旋转镶件的立端插入 转轮转孔内； 所述弹性件设置在转轮转孔的孔壁与立端之间。
[权利要求 4] 如权利要求 3所述的微调机构， 其特征在于， 所述盖板具有盖板通孔
， 所述旋转镶件具有用于操作旋转镶件旋转的凸台， 所述凸台从盖板 通孔中露出。
[权利要求 5] 如权利要求 4所述的微调机构， 其特征在于， 所述凸台的端面设置有 刀形、 一字形、 十字形、 方形或六棱形的凹槽。
[权利要求 6] 如权利要求 4所述的微调机构， 其特征在于， 所述旋转镶件包括端盘
， 所述立端设置在端盘的一侧， 所述第一定位部为定位柱， 所述第二 定位部为定位孔， 所述定位柱和凸台设置在端盘的另一侧。
[权利要求 7] 如权利要求 6所述的微调机构， 其特征在于， 所述安装部为设置在立 端上的安装孔， 所述转轮主体具有一圈与转轮转孔相交的间隙， 当所 述立端插入转轮转孔后， 所述牵弓 I线从所述间隙中伸出。
[权利要求 8] 如权利要求 6所述的微调机构， 其特征在于， 所述转轮主体具有杯状 体， 所述转轮转孔设置在杯状体的底壁， 所述盖板固定盖设在杯状体 上， 所述旋转镶件设置在杯状体的底壁和盖板围成的腔体中。
[权利要求 9] 如权利要求 8所述的微调机构， 其特征在于， 所述杯状体的底壁设置 有转轮沉孔， 所述旋转镶件的端盘容置在转轮沉孔内。
[权利要求 10] 如权利要求 1所述的微调机构， 其特征在于， 所述旋转镶件为两个。
PCT/CN2016/076602 2016-03-17 2016-03-17 内窥镜的微调机构 WO2017156749A1 (zh)

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