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CN108175472B - Miniature pendulum saw - Google Patents

Miniature pendulum saw
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Publication number
CN108175472B
CN108175472BCN201810147996.7ACN201810147996ACN108175472BCN 108175472 BCN108175472 BCN 108175472BCN 201810147996 ACN201810147996 ACN 201810147996ACN 108175472 BCN108175472 BCN 108175472B
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cutter
annular sleeve
bottom column
flange
rod
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CN108175472A (en
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谢彤彤
鹿霖
王熙迥
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Shanghai Bojin Medical Instrument Co ltd
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Shanghai Bojin Medical Instrument Co ltd
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Abstract

The invention relates to a miniature pendulum saw, which comprises a cutter, a cutter locking mechanism and a transmission mechanism which are sequentially connected, wherein the cutter locking mechanism comprises a cutter positioning shell, a swinging rod, a bottom column and a top cover, the cutter positioning shell comprises a first annular sleeve, the bottom column is at least partially penetrated in the first annular sleeve, one end of the bottom column is abutted against the first annular sleeve, the other end of the bottom column is connected with the top cover, the swinging rod is arranged on the first annular sleeve and vertically sleeved on the bottom column, the swinging rod is fixedly matched with the bottom column, one end of the swinging rod is meshed with the cutter, and the other end of the swinging rod is connected with the transmission mechanism.

Description

Translated fromChinese
一种微型摆锯A miniature oscillating saw

技术领域Technical field

本发明属于医疗器械领域,特别涉及一种微型摆锯。The invention belongs to the field of medical equipment, and in particular relates to a miniature oscillating saw.

背景技术Background technique

随着医学的进步与发展,对于医疗器具的要求也越来越高。在医疗骨科手术中,一般采用采用摆锯通过高速摆动的锯片来做骨组织的切除手术,现有医用摆锯的锯片通常采用螺母压紧的方式,拆卸锯片需要借助扳手等工具旋紧装配或旋松卸下,操作麻烦且易发生刀具松动,滑落现象,同时在手术过程中由于震动,采用螺母压紧的安装方式有可能出现螺母松动的现象,可靠性能差,有一定风险,另外在手术过程中,由于血液的关系,需要有一定的密封作用才能延长医用摆锯的使用寿命,目前采用的机构并没有实现密封作用。With the advancement and development of medicine, the requirements for medical equipment are becoming higher and higher. In medical orthopedic surgery, an oscillating saw is generally used to remove bone tissue through a high-speed swinging saw blade. The blades of existing medical oscillating saws usually use a nut compression method. To disassemble the saw blade, you need to use a wrench and other tools to rotate it. Tight assembly or loosening and removal is troublesome to operate and prone to loosening and slipping of the tool. At the same time, due to vibration during the operation, the installation method of tightening the nut may cause the nut to loosen. The reliability is poor and there is a certain risk. In addition, during the operation, due to the relationship between blood, a certain sealing effect is required to extend the service life of the medical oscillating saw. The current mechanism does not achieve the sealing effect.

发明内容Contents of the invention

本发明所要解决的技术问题是提供一种微型摆锯,其能有效夹持刀具,使刀具夹持牢固可靠,在刀具受力方向不会产生移动,且拆装方便。The technical problem to be solved by the present invention is to provide a miniature oscillating saw that can effectively clamp the cutter, make the cutter clamping firm and reliable, will not move in the force direction of the cutter, and is easy to disassemble and assemble.

为解决上述问题,本发明提供一种微型摆锯,包括依次连接的刀具、刀具锁紧机构及传动机构,所述刀具锁紧机构包括刀具定位外壳,摆杆、底柱以及顶盖,所述刀具定位外壳包括第一环形套,所述底柱至少部分穿设在所述第一环形套内,且一端与所述第一环形套抵紧,另一端与所述顶盖连接,所述摆杆置于所述第一环形套上且垂直套设在所述底柱上,所述摆杆与所述底柱固定配合,所述摆杆一端与所述刀具啮合连接,另一端与所述传动机构连接。In order to solve the above problems, the present invention provides a miniature oscillating saw, which includes a cutter, a cutter locking mechanism and a transmission mechanism connected in sequence. The cutter locking mechanism includes a cutter positioning shell, a swing bar, a bottom column and a top cover. The tool positioning shell includes a first annular sleeve, the bottom column is at least partially inserted into the first annular sleeve, and one end is tightly pressed against the first annular sleeve, and the other end is connected to the top cover. The rod is placed on the first annular sleeve and vertically sleeved on the bottom column. The swing rod is fixedly matched with the bottom column. One end of the swing rod is engaged with the cutter and the other end is connected with the tool. Transmission mechanism connection.

此外,本发明还提供如下附属技术方案:In addition, the present invention also provides the following auxiliary technical solutions:

所述刀具包括凹槽,所述摆杆包括与所述凹槽配合的凸起,所述凹槽至少包括两个。The cutter includes a groove, the swing lever includes a protrusion that matches the groove, and the groove includes at least two.

所述刀具锁紧机构还包括限位杆及第一弹簧,所述限位杆至少部分穿设于所述底柱内,且所述限位杆一端与所述顶盖连接,所述第一弹簧套设在所述限位杆上且一端与所述限位杆抵紧,另一端与所述底柱的内壁抵紧。The tool locking mechanism also includes a limiting rod and a first spring. The limiting rod is at least partially inserted into the bottom column, and one end of the limiting rod is connected to the top cover. The first spring The spring is sleeved on the limiting rod and has one end pressed against the limiting rod and the other end pressed against the inner wall of the bottom column.

所述刀具锁紧机构还包括设于所述底柱与所述第一环形套之间的轴承、以及设于所述轴承与所述摆杆之间的垫圈。The tool locking mechanism further includes a bearing provided between the bottom column and the first annular sleeve, and a washer provided between the bearing and the swing bar.

所述传动机构包括与所述摆杆连接的拨叉、与动力源连接的偏心轴以及设于所述偏心轴一端且与所述拨叉配合的拨动组件。The transmission mechanism includes a shift fork connected to the swing rod, an eccentric shaft connected to a power source, and a toggle component located at one end of the eccentric shaft and cooperating with the shift fork.

所述刀具定位外壳还包括与所述第一环形套垂直的第二环形套,所述拨叉至少部分设于所述第二环形套内,且所述摆杆至少部分设于所述第二环形套内。The tool positioning housing further includes a second annular sleeve perpendicular to the first annular sleeve, the shift fork is at least partially disposed in the second annular sleeve, and the swing bar is at least partially disposed in the second annular sleeve. Inside the ring sleeve.

所述传动机构还包括第一圆柱销,所述第一圆柱销两端同时穿设在所述刀具定位外壳及拨叉上。The transmission mechanism also includes a first cylindrical pin, and both ends of the first cylindrical pin are simultaneously inserted into the tool positioning housing and the shift fork.

所述传动机构包括第一密封圈,所述第一密封圈设于所述拨叉与所述刀具定位外壳之间。The transmission mechanism includes a first sealing ring, and the first sealing ring is provided between the shift fork and the tool positioning housing.

所述微型摆锯还包括连接外壳,所述连接外壳与所述刀具定位外壳连接,所述传动机构至少部分收容于所述连接外壳内。The micro oscillating saw also includes a connecting housing, the connecting housing is connected to the tool positioning housing, and the transmission mechanism is at least partially accommodated in the connecting housing.

所述微型摆锯还包括第二密封圈,所述第二密封圈设于所述连接外壳与所述刀具定位外壳之间。The micro oscillating saw also includes a second sealing ring, and the second sealing ring is provided between the connecting housing and the tool positioning housing.

本发明的有益效果:Beneficial effects of the present invention:

本发明提供了一种微型摆锯,针对现有技术进行改进,具有以下优点:The present invention provides a miniature oscillating saw, which is improved on the existing technology and has the following advantages:

1.本发明中的微型摆锯包括依次连接的刀具、刀具锁紧机构及传动机构,所述刀具锁紧机构包括刀具定位外壳,摆杆、底柱以及顶盖,所述刀具定位外壳包括第一环形套,所述底柱至少部分穿设在所述第一环形套内,且一端与所述第一环形套抵紧,另一端与所述顶盖连接,所述摆杆置于所述第一环形套上且垂直套设在所述底柱上,所述摆杆与所述底柱固定配合,所述摆杆一端与所述刀具啮合连接,另一端与所述传动机构连接,本发明中利用啮合的方式将刀具固定在刀具锁紧机构上,相对于传统的刀具压紧方式,夹紧力增强,使刀具在受力方向不会产生移动,提高刀具的可靠性。1. The micro oscillating saw in the present invention includes a cutter, a cutter locking mechanism and a transmission mechanism connected in sequence. The cutter locking mechanism includes a cutter positioning shell, a swing bar, a bottom column and a top cover. The cutter positioning shell includes a third An annular sleeve, the bottom column is at least partially inserted into the first annular sleeve, and one end is tightly pressed against the first annular sleeve, and the other end is connected to the top cover, and the swing rod is placed on the first annular sleeve. The first annular sleeve is vertically sleeved on the bottom column, the swing rod is fixedly matched with the bottom column, one end of the swing rod is meshed with the cutter, and the other end is connected with the transmission mechanism. In the invention, the tool is fixed on the tool locking mechanism by means of meshing. Compared with the traditional tool pressing method, the clamping force is enhanced, so that the tool will not move in the direction of force, thereby improving the reliability of the tool.

2.所述刀具锁紧机构还包括限位杆及第一弹簧,所述限位杆至少部分穿设于所述底柱内,且所述限位杆一端与所述顶盖连接,所述第一弹簧套设在所述限位杆上且一端与所述限位杆抵紧,另一端与所述底柱的内壁抵紧,通过设置相互配合的限位杆、第一弹簧及顶盖,我们可以利用第一弹簧的弹力,方便快捷地拆装刀具;2. The tool locking mechanism also includes a limiting rod and a first spring. The limiting rod is at least partially inserted into the bottom column, and one end of the limiting rod is connected to the top cover. The first spring is sleeved on the limiting rod and has one end pressed against the limiting rod and the other end pressed against the inner wall of the bottom column. By arranging the limiting rod, the first spring and the top cover that cooperate with each other , we can use the elastic force of the first spring to disassemble and assemble the tool conveniently and quickly;

3.所述传动机构包括第一密封圈,所述第一密封圈设于所述拨叉与所述刀具定位外壳之间;所述微型摆锯还包括第二密封圈,所述第二密封圈设于所述连接外壳与所述刀具定位外壳之间,通过在外壳之间的连接处,以及前后部件之间设置密封圈,能起到防水功能,可有效避免在手术过程中血水流入摆锯中的情况,从而延长摆锯的使用寿命。3. The transmission mechanism includes a first sealing ring, and the first sealing ring is provided between the shift fork and the tool positioning housing; the micro oscillating saw also includes a second sealing ring, and the second sealing ring The ring is provided between the connecting shell and the tool positioning shell. By arranging a sealing ring at the connection between the shells and between the front and rear parts, it can have a waterproof function and effectively prevent blood from flowing into the pendulum during the operation. conditions in the saw, thereby extending the service life of the oscillating saw.

附图说明Description of the drawings

图1为本发明实施例中微型摆锯的剖视图;Figure 1 is a cross-sectional view of a micro-oscillating saw in an embodiment of the present invention;

图2为本发明实施例中微型摆锯另一剖面的剖视图;Figure 2 is a cross-sectional view of another cross-section of the micro-oscillating saw in the embodiment of the present invention;

图3为图2中a的放大图;Figure 3 is an enlarged view of a in Figure 2;

图4为本发明实施例中刀具及刀具锁紧机构的立体装配图;Figure 4 is a three-dimensional assembly view of the tool and the tool locking mechanism in the embodiment of the present invention;

图5为本发明实施例中微型摆锯传动机构的立体图;Figure 5 is a perspective view of the transmission mechanism of the micro oscillating saw in the embodiment of the present invention;

图6为本发明实施例中整体装配图。Figure 6 is an overall assembly diagram in the embodiment of the present invention.

具体实施方式Detailed ways

实施例:本发明提供了一种微型摆锯,以下将结合附图对该实施例作进一步的详细说明。Embodiment: The present invention provides a micro oscillating saw. This embodiment will be described in further detail below with reference to the accompanying drawings.

如图1至6所示,本实施例保护一种微型摆锯,包括依次连接的刀具5、刀具锁紧机构30及传动机构40,刀具锁紧机构30锁紧刀具5,传动机构40带动刀具5摆动。As shown in Figures 1 to 6, this embodiment protects a miniature oscillating saw, which includes a cutter 5, a cutter locking mechanism 30 and a transmission mechanism 40 connected in sequence. The cutter locking mechanism 30 locks the cutter 5, and the transmission mechanism 40 drives the cutter. 5 swing.

参照图1至图4,刀具锁紧机构30包括刀具定位外壳8,摆杆11、底柱1、顶盖7、限位杆4、第一弹簧6、轴承2及垫圈3。其中,刀具定位外壳8为主支架,包括第一环形套81及与第一环形套81垂直的第二环形套82。底柱1至少部分垂直穿设在第一环形套81 内,且一端与第一环形套81抵紧,另一端与顶盖7连接。Referring to FIGS. 1 to 4 , the tool locking mechanism 30 includes a tool positioning housing 8 , a swing bar 11 , a bottom column 1 , a top cover 7 , a limiting rod 4 , a first spring 6 , a bearing 2 and a washer 3 . Among them, the tool positioning housing 8 is a main support, including a first annular sleeve 81 and a second annular sleeve 82 perpendicular to the first annular sleeve 81 . The bottom column 1 is at least partially vertically inserted into the first annular sleeve 81 , and one end is tightly pressed against the first annular sleeve 81 , and the other end is connected to the top cover 7 .

底柱1包括从下往上依次相邻设置的第一凸缘32、第二凸缘33及第三凸缘34,且直径依次减小。其中的第一凸缘32与第一环形套81下端面抵紧,第二凸缘33为与轴承2配合的轴肩,第三凸缘34与摆杆11 固定配合。摆杆11置于第一环形套81上且垂直套设在底柱1上,设有与底柱1配合的第一穿孔。摆杆11上端面与刀具5啮合连接,另一端与传动机构40连接。刀具5包括凹槽 51,摆杆11包括与凹槽51配合的凸起31,凹槽51至少包括两个。本实施例中,为了便于刀具5的安装,凹槽51通常均匀设置于以第一穿孔为圆心的圆环上,凸起31同样设置即可。本实施例中利用啮合的方式将刀具5固定在刀具锁紧机构30上,相对于传统的刀具压紧方式,夹紧力增强,使刀具在受力方向不会产生移动,提高刀具的可靠性。The bottom column 1 includes a first flange 32 , a second flange 33 and a third flange 34 arranged adjacently in sequence from bottom to top, and the diameters decrease in sequence. The first flange 32 is in tight contact with the lower end surface of the first annular sleeve 81 , the second flange 33 is a shoulder that cooperates with the bearing 2 , and the third flange 34 is fixedly matched with the swing rod 11 . The swing rod 11 is placed on the first annular sleeve 81 and vertically sleeved on the bottom column 1, and is provided with a first through hole that matches the bottom column 1. The upper end of the swing rod 11 is meshed with the cutter 5 and the other end is connected with the transmission mechanism 40 . The cutter 5 includes a groove 51, the swing rod 11 includes a protrusion 31 that matches the groove 51, and the groove 51 includes at least two. In this embodiment, in order to facilitate the installation of the tool 5, the grooves 51 are usually evenly arranged on the circular ring with the first through hole as the center, and the protrusions 31 can be similarly arranged. In this embodiment, the tool 5 is fixed on the tool locking mechanism 30 by means of meshing. Compared with the traditional tool pressing method, the clamping force is enhanced, so that the tool will not move in the direction of force, thereby improving the reliability of the tool. .

进一步,限位杆4至少部分穿设于底柱1内,且限位杆4一端与顶盖7卡紧连接,另一端为活动端,超过底柱1而暴露在外。第一弹簧6套设在限位杆4上且一端与限位杆4 上的第四凸缘41抵紧,另一端与底柱1的顶部内壁抵紧。轴承2设于底柱1与第一环形套 81之间,可以是一个也可以是多个,本实施例中以两个为例,轴承2下端与第二凸缘33 抵紧配合,上端与垫圈3抵紧配合。当摆杆11受力摆动时,带动刀具5与底柱1同时摆动,故底柱相对于底柱1发生往复性地相对转动。Furthermore, the limiting rod 4 is at least partially inserted into the bottom column 1, and one end of the limiting rod 4 is tightly connected to the top cover 7, and the other end is a movable end that exceeds the bottom column 1 and is exposed to the outside. The first spring 6 is sleeved on the limiting rod 4 and has one end pressed against the fourth flange 41 on the limiting rod 4 and the other end pressed against the top inner wall of the bottom column 1 . The bearing 2 is disposed between the bottom column 1 and the first annular sleeve 81. There can be one or more bearings. In this embodiment, two are taken as an example. The lower end of the bearing 2 is in tight fit with the second flange 33, and the upper end is in tight fit with the second flange 33. Washer 3 fits tightly. When the swing rod 11 swings under force, the cutter 5 and the bottom column 1 are driven to swing simultaneously, so the bottom column rotates reciprocally relative to the bottom column 1 .

顶盖7罩设在刀具5与摆杆11连接处,设有与限位杆4配合的第一卡扣71以及与底柱1配合的第二卡扣72。The top cover 7 is located at the connection point between the tool 5 and the swing rod 11 , and is provided with a first buckle 71 that cooperates with the limit rod 4 and a second buckle 72 that cooperates with the bottom column 1 .

需要安装刀具时,只需要将限位杆4向上顶起,顶盖7顶起并取下,使刀具5与摆杆11连接处暴露,将刀具5的凹槽51与凸起31对准后,再盖上顶盖7,然后再次限位杆4 向上顶起,并将顶盖7与限位杆4连接,在第一弹簧6的弹力作用下,顶盖7下落并罩设在刀具5与摆杆11连接处,完成刀具安装。故本实施例通过巧妙地机械配合关系,能在不需要借助外界工具的情况下,便捷地进行刀具5的拆装,省时省力。When you need to install a tool, you only need to push up the limit rod 4, lift up and remove the top cover 7, so that the connection between the tool 5 and the swing bar 11 is exposed. Align the groove 51 of the tool 5 with the protrusion 31. , then cover the top cover 7, then push up the limit rod 4 again, and connect the top cover 7 with the limit rod 4. Under the elastic force of the first spring 6, the top cover 7 falls and covers the tool 5 At the connection point with the swing bar 11, the tool installation is completed. Therefore, this embodiment can conveniently disassemble and assemble the tool 5 without using external tools through ingenious mechanical cooperation, saving time and effort.

参照图1-2及5-6,传动机构40包括与摆杆11连接的拨叉14、与动力源连接的偏心轴18以及设于偏心轴18一端且与拨叉14配合的拨动组件,拨叉14至少部分设于第二环形套82内,且摆杆11至少部分设于第二环形套82内,也就是说,摆杆11穿过第二环形套82与拨叉14连接。Referring to Figures 1-2 and 5-6, the transmission mechanism 40 includes a shift fork 14 connected to the swing rod 11, an eccentric shaft 18 connected to the power source, and a toggle component located at one end of the eccentric shaft 18 and cooperating with the shift fork 14. The shift fork 14 is at least partially disposed in the second annular sleeve 82 , and the swing rod 11 is at least partly disposed in the second annular sleeve 82 . That is to say, the swing rod 11 passes through the second annular sleeve 82 and is connected to the shift fork 14 .

拨叉14与摆杆11之间通过第二圆柱销10连接。具体为,圆柱销10穿设在拨叉14一端的两个穿孔内,摆杆11一端与与第二圆柱销10卡紧连接,因此,拨叉14左右摆动,通过第二圆柱销10,将该摆动传递给摆杆11,使摆杆11随之左右摆动。The shift fork 14 and the swing rod 11 are connected through a second cylindrical pin 10 . Specifically, the cylindrical pin 10 is inserted into the two through holes at one end of the shift fork 14, and one end of the swing rod 11 is tightly connected to the second cylindrical pin 10. Therefore, the shift fork 14 swings left and right, and through the second cylindrical pin 10, the This swing is transmitted to the swing bar 11, causing the swing bar 11 to swing left and right accordingly.

拨动组件包括套设在所述偏心轴18上的连接球22、设于连接球22与偏心轴18之间的轴承24,拨叉14包括开槽141,连接球22位于开槽141内以实现偏心轴18转动而带动拨叉14往复转动。拨动组件还包括设于轴承24一侧的轴用挡圈27、设于轴承24与轴用挡圈27之间的间隔环26、以及设于轴承24另一侧的孔用钢丝挡圈21,以对轴承24及连接球22进行限位设置。The toggle assembly includes a connecting ball 22 sleeved on the eccentric shaft 18 and a bearing 24 located between the connecting ball 22 and the eccentric shaft 18. The shift fork 14 includes a slot 141, and the connecting ball 22 is located in the slot 141. The rotation of the eccentric shaft 18 drives the shift fork 14 to reciprocate. The toggle assembly also includes a shaft retaining ring 27 located on one side of the bearing 24, a spacer ring 26 located between the bearing 24 and the shaft retaining ring 27, and a hole wire retaining ring 21 located on the other side of the bearing 24. , to limit the bearing 24 and the connecting ball 22.

传动机构40还包括第一圆柱销13,第一圆柱销13两端同时穿设在刀具定位外壳8及拨叉14上。即拨叉14位于刀具定位外壳8内且通过第一圆柱销13将拨叉14与刀具定位外壳8固定,如此,拨叉14以该第一圆柱销13为旋转中心进行往复性旋转。The transmission mechanism 40 also includes a first cylindrical pin 13. Both ends of the first cylindrical pin 13 are simultaneously inserted into the tool positioning housing 8 and the shift fork 14. That is, the shift fork 14 is located in the cutter positioning housing 8 and is fixed to the cutter positioning housing 8 through the first cylindrical pin 13 . In this way, the shift fork 14 rotates reciprocally with the first cylindrical pin 13 as the rotation center.

继续参照图1至图2,该微型摆锯还包括连接外壳28,连接外壳28与刀具定位外壳8螺纹连接,传动机构40至少部分收容于连接外壳28内。本实施例中,传动机构40包括第一密封圈12和第二密封圈9,其中第一密封圈12设于拨叉14与刀具定位外壳8之间,以对刀具锁紧机构30与传动机构40之间进行密封性处理。第二密封圈9设于连接外壳28与刀具定位外壳8之间,由此我们可知,拨叉14位于刀具定位外壳8与刀具定位外壳8连接处的后端,由此,我们可以对刀具定位外壳8与外界进行密封性处理。因此,该微型摆锯的传动机构40受到很好的密封性保护,防水性极佳,以防止在手术及清洗过程中,液体流入机体内部,从而延长使用寿命。Continuing to refer to FIGS. 1 and 2 , the micro oscillating saw also includes a connecting housing 28 , which is threadedly connected to the tool positioning housing 8 , and the transmission mechanism 40 is at least partially accommodated in the connecting housing 28 . In this embodiment, the transmission mechanism 40 includes a first sealing ring 12 and a second sealing ring 9 , where the first sealing ring 12 is provided between the shift fork 14 and the tool positioning housing 8 to connect the tool locking mechanism 30 and the transmission mechanism. 40 for sealing treatment. The second sealing ring 9 is provided between the connecting housing 28 and the tool positioning housing 8. From this we can know that the shift fork 14 is located at the rear end of the connection between the tool positioning housing 8 and the tool positioning housing 8. From this, we can position the tool The outer casing 8 is sealed with the outside world. Therefore, the transmission mechanism 40 of the micro oscillating saw is well protected by sealing and has excellent waterproofness to prevent liquid from flowing into the body during surgery and cleaning, thereby extending the service life.

偏心轴18后端与动力源连接,设有套设在偏心轴18上连接轴17、连接连接轴17与偏心轴18的圆柱销16、设于偏心轴18与连接轴17之前的传动轴连接套环15、以及套设于偏心轴18上且一端与偏心轴抵紧另一端与传动轴连接套环15抵紧的第二弹簧19。The rear end of the eccentric shaft 18 is connected to the power source, and is provided with a connecting shaft 17 sleeved on the eccentric shaft 18, a cylindrical pin 16 connecting the connecting shaft 17 and the eccentric shaft 18, and a transmission shaft connection located in front of the eccentric shaft 18 and the connecting shaft 17. The collar 15 and the second spring 19 are sleeved on the eccentric shaft 18 and have one end pressed against the eccentric shaft and the other end pressed against the transmission shaft connecting collar 15 .

以上所述是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本发明的保护范围。The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also regarded as It is the protection scope of the present invention.

Claims (8)

1. The utility model provides a miniature pendulum saw, includes cutter (5), cutter locking mechanism (30) and drive mechanism (40) that connect gradually, its characterized in that: the cutter locking mechanism (30) comprises a cutter positioning shell (8), a swinging rod (11), a bottom column (1), a top cover (7), a bearing (2) and a gasket (3), wherein the cutter positioning shell (8) is a main support and comprises a first annular sleeve (81) and a second annular sleeve (82) perpendicular to the first annular sleeve (81), the bottom column (1) is at least partially penetrated in the first annular sleeve (81), one end of the bottom column is abutted against the first annular sleeve (81), the other end of the bottom column is connected with the top cover (7), the swinging rod (11) is arranged on the first annular sleeve (81) and is vertically sleeved on the bottom column (1), the swinging rod (11) is fixedly matched with the bottom column (1), one end of the swinging rod (11) is meshed with the cutter (5), and the other end of the swinging rod (11) is connected with the transmission mechanism (40).
CN201810147996.7A2018-02-122018-02-12Miniature pendulum sawActiveCN108175472B (en)

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CN115105152B (en)*2022-06-302024-08-30重庆西山科技股份有限公司 Medical oscillating saw head

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CN203749488U (en)*2014-03-042014-08-06芜湖锐进医疗设备有限公司Locking device for surgery swing saw blades
CN104173091A (en)*2014-08-212014-12-03舒捷医疗科技(苏州)有限公司Chuck structure of medical saw
CN104644237A (en)*2015-01-302015-05-27芜湖锐进医疗设备有限公司Saw blade fixing device for medical electric swing saw
CN107380827A (en)*2017-08-022017-11-24惠雨王辰Compressed garbage bucket
CN209074764U (en)*2018-02-122019-07-09苏州益诺斯医疗科技有限公司A kind of miniature goose saw

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* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
EP0152621A1 (en)*1984-02-041985-08-28Robert Bosch GmbhSabre saw with reciprocating and oscillating movement
CN2778752Y (en)*2005-03-072006-05-10周宇Trash bucket with omnibearing cover
CN200995891Y (en)*2007-01-292007-12-26刘铠冰Peddaled cap-thrown dustbin
CN102462527A (en)*2010-11-162012-05-23成都施美德医疗设备有限公司Swing head cutting device
WO2013131412A1 (en)*2012-03-092013-09-12苏州宝时得电动工具有限公司Oscillating power tool
CN203749488U (en)*2014-03-042014-08-06芜湖锐进医疗设备有限公司Locking device for surgery swing saw blades
CN104173091A (en)*2014-08-212014-12-03舒捷医疗科技(苏州)有限公司Chuck structure of medical saw
CN104644237A (en)*2015-01-302015-05-27芜湖锐进医疗设备有限公司Saw blade fixing device for medical electric swing saw
CN107380827A (en)*2017-08-022017-11-24惠雨王辰Compressed garbage bucket
CN209074764U (en)*2018-02-122019-07-09苏州益诺斯医疗科技有限公司A kind of miniature goose saw

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