WO2020103112A1 - 一种剃须刀 - Google Patents

一种剃须刀

Info

Publication number
WO2020103112A1
WO2020103112A1 PCT/CN2018/117064 CN2018117064W WO2020103112A1 WO 2020103112 A1 WO2020103112 A1 WO 2020103112A1 CN 2018117064 W CN2018117064 W CN 2018117064W WO 2020103112 A1 WO2020103112 A1 WO 2020103112A1
Authority
WO
WIPO (PCT)
Prior art keywords
floating ring
end surface
boss
connector
universal joint
Prior art date
Application number
PCT/CN2018/117064
Other languages
English (en)
French (fr)
Inventor
王相琦
王强民
Original Assignee
浙江夏隆电器有限公司
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 浙江夏隆电器有限公司 filed Critical 浙江夏隆电器有限公司
Priority to PCT/CN2018/117064 priority Critical patent/WO2020103112A1/zh
Priority to CN201880006715.4A priority patent/CN110267779B/zh
Publication of WO2020103112A1 publication Critical patent/WO2020103112A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B26B19/145—Cutters being movable in the cutting head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • B26B19/386—Means for attaching the head thereto

Definitions

  • the invention relates to a hair trimming device, in particular to a shaver.
  • Shaving razors are tools for shaving beards, mostly used by adult men.
  • the razor can be divided into a rotary cutter head shaver and a reciprocating cutter head shaver.
  • Rotary cutter head shavers usually include handle parts and cutter head parts.
  • the handle parts usually include a housing, a power supply, a motor, etc.
  • the cutter head parts usually include a cutter head cover, a cutting assembly, etc.
  • the cutter head parts are fixedly mounted on the handle component.
  • the current razor When shaving, the current razor usually sets the head part to be floating, so that it can better fit the human body and achieve a better shaving effect, but the existing razor head is only Through the floating of the cutting component, the floating buoyancy is small and cannot meet the shaving requirements.
  • the present invention provides a razor, which can realize the pivoting action of the cutter head part relative to the handle part in various directions.
  • a razor includes a handle part and a cutter head part, and the handle part and the cutter head part are connected by a pivot assembly;
  • the pivot assembly includes a connection head, A floating ring and a universal connector, the connecting head is connected with the handle part, the floating ring connects the cutter head part and the connecting head;
  • the universal connector is provided with a first rotating part arranged along the X-axis direction and A second rotating part provided in the Y-axis direction, the universal joint rotates along the X axis through the first rotating part and the connector, and the universal joint rotates along the Y axis through the second rotating part and the cutter head component Cooperate.
  • the connecting head is provided with a symmetrically arranged support seat, and an upper end face of the support seat is formed with an arc groove recessed downward;
  • the first rotating part of the universal joint includes a support rod corresponding to the support base, and an arc boss corresponding to the arc groove is formed at the bottom of the support rod, and the arc boss is placed at Inside the arc groove.
  • the connecting head is also provided with symmetrically arranged clamping bosses, the clamping bosses are arranged at positions below the support base, and a first arc surface protruding downward is formed on the lower end surface of the clamping boss;
  • the first rotating part of the universal joint further includes a first hook corresponding to the clamping boss, the first hook hook snap-fits with the clamping boss, and the upper end surface of the first hook is formed with The second curved surface is adapted to the first curved surface.
  • the floating ring is provided with an upper pressing plate, and the upper end surface of the upper pressing plate is provided with a plurality of second hooks.
  • the second hooks sequentially pass through the upper end surface of the floating ring and the lower shell of the cutter head component, and It is snap-fitted with the lower shell of the cutter head component.
  • a plurality of first positioning grooves are provided on the upper end surface of the floating ring, and a plurality of first positioning bosses are correspondingly provided on the upper pressure plate, and the first positioning grooves are positioned in cooperation with the first positioning bosses.
  • the second rotating part includes a rotating shaft extending toward both ends of the Y axis; a first semicircular groove is provided on the upper pressure plate, a second semicircular groove is correspondingly provided on the lower housing, and the rotating shaft is provided at Between the first semicircular groove and the second semicircular groove.
  • the lower end of the floating ring is provided with a lower pressure plate
  • the upper end surface of the lower pressure plate is provided with a plurality of third hooks
  • the outer ring of the connection head is formed with a ring-shaped limiting boss
  • the floating ring and the lower pressure plate are sequentially sleeved Outside the connector, the third hook passes through the lower end surface of the floating ring, the annular limit boss in turn, and is snap-fitted with the annular limit boss.
  • a plurality of second positioning grooves are provided on the lower end surface of the floating ring, and a plurality of second positioning bosses are correspondingly provided on the annular limiting boss, and the second positioning grooves are positioned and matched with the second positioning bosses.
  • the connector is fixedly mounted on the handle component
  • the universal connector can rotate relative to the connector about the X axis direction through the first rotating part
  • the cutter head component can be connected through the universal
  • the second rotating part of the part rotates around the Y axis relative to the universal joint, so as to realize the pivoting action of the cutter head part relative to the handle part in various directions, so that during the shaving process, the cutter head part can automatically adjust to adapt to the skin Contour to achieve the best shaving effect.
  • FIG. 1 is a schematic structural diagram of a shaver according to an embodiment of the present invention.
  • FIG. 2 is a three-dimensional structural schematic diagram of a razor pivot assembly according to an embodiment of the present invention.
  • FIG. 3 is a top schematic structural view of a pivoting assembly of a razor according to an embodiment of the invention
  • FIG. 4 is a cross-sectional view of A-A in FIG. 3.
  • FIG. 5 is a cross-sectional view of B-B in FIG. 3.
  • FIG. 6 is a schematic structural diagram of a razor pivot assembly according to an embodiment of the present invention.
  • FIG. 7 is an exploded exploded view of the razor pivot assembly according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a lower case according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a connector according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a floating ring according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a universal connector according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of an upper pressing plate according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a lower pressure plate according to an embodiment of the present invention.
  • a razor includes a handle part 7 and a cutter head part 1, and the handle part 7 and the cutter head part 1 are connected by a pivot assembly 8.
  • the pivoting assembly 8 includes a connector 2, a floating ring 3, and a universal connector 4, the connector 2 is detachably connected to the handle part 7, the floating ring 3 is made of a soft and volatile material, and is connected to the cutter head Component 1 and connector 2.
  • the universal connector 4 is provided with a first rotating part provided along the X-axis direction and a second rotating part provided along the Y-axis direction, and the universal connector 4 passes along the X-axis through the first rotating part and the connector 2 Rotating fit, the universal joint 4 is rotatably engaged with the cutter head component along the Y axis through the second rotating part.
  • the universal joint 4 can rotate relative to the connecting head 2 about the X axis direction through the first rotating part, and the cutter head component 1 can also pass through the universal joint 4
  • the second rotating part rotates around the Y axis relative to the universal joint, so as to realize the pivoting action of the cutter head part 7 relative to the handle part 1 in various directions, so that during the shaving process, the cutter head part 1 can automatically adjust to Adapt to the contour of the skin to achieve the best shaving effect.
  • the floating ring 3 is provided with an upper pressing plate 5, and the upper end surface of the upper pressing plate 5 is provided with a plurality of second hooks 51.
  • the second hooks 51 sequentially pass through the upper end surface of the floating ring 3 1.
  • the lower housing 11 of the cutter head component 1 is engaged with the lower housing 11 of the cutter head component 1, and the floating ring 3 and the lower housing 11 are connected by a snap connection.
  • the structure is simple and the installation is more Convenience.
  • first positioning grooves 31 are provided on the upper end surface of the floating ring 3
  • a plurality of first positioning bosses 52 are correspondingly provided on the upper pressing plate 5, the first positioning grooves 31 and the first positioning bosses 52 positioning coordination, through the positioning coordination of each first positioning groove 31 and the first positioning boss 52, to ensure accurate installation, and at the same time make the structure more stable, thereby ensuring the stability of its work.
  • the lower end of the floating ring 3 is provided with a lower pressing plate 6, the upper end surface of the lower pressing plate 6 is provided with a plurality of third hooks 61, and the outer ring of the connecting head 2 is formed with an annular limiting boss 23,
  • the floating ring 3 and the lower pressure plate 6 are sequentially sleeved outside the connecting head 2, and the third hook 61 passes through the lower end surface of the floating ring 3, the annular limit boss 23, and the annular limit boss 23 in turn
  • the floating ring 3 and the connecting head 2 are also connected by snap-fit.
  • the structure is simple and the installation is more convenient.
  • a plurality of second positioning grooves 32 are provided on the lower end surface of the floating ring 3, and a plurality of second positioning bosses 24 are correspondingly provided on the annular limiting boss 23, and the second positioning groove 32 and the second The positioning cooperation of the positioning boss 24 ensures accurate installation, and at the same time makes the structure more stable, thereby ensuring the stability of its work.
  • the connecting head 2 is provided with a symmetrically arranged support base 21, and the upper end surface of the support base 21 is formed with an arc groove 211 recessed downward; the first of the universal joint 4
  • the rotating part includes a support rod 41 corresponding to the support base 21, an arc boss 411 adapted to the arc groove 211 is formed at the bottom of the support rod 41, and the arc boss 411 is placed in the arc recess In the slot 211.
  • the universal joint 4 and the connecting head 2 cooperate with each other through the arc-shaped boss 411 and the arc-shaped groove 211, and the end surfaces on both sides of the arc-shaped boss 411 and the arc-shaped groove 211 can realize the mutual
  • the limit position gives a limit to the rotation angle, making the work more stable and not easy to slip off.
  • the connecting head 2 is also provided with symmetrically arranged clamping bosses 22, the clamping bosses 22 are provided at positions below the support base 21, and the lower end surfaces of the clamping bosses 22 are formed to protrude downward
  • the first curved surface 221; the first rotating part of the universal joint 4 further includes a first hook 42 corresponding to the clamping boss 22, the first hook 42 and the clamping boss 22 A snap fit, and the upper end surface of the first hook 42 forms a second curved surface 421 adapted to the first curved surface 221, and a connection structure is connected between the universal connection seat 4 and the connection head 2, Ensure the stable installation of the universal joint 4 and further improve the stability of its work.
  • the second rotating portion includes a rotating shaft 43 extending toward both ends of the Y axis; the upper pressure plate 5 is provided with a first semi-circular groove 53, and the lower housing 11 is correspondingly provided with a second Semi-circular groove 12, the rotating shaft 43 is disposed between the first semi-circular groove 53 and the second semi-circular groove 12, during installation, the rotating shaft 43 is placed on the first semi-circular groove 53, and the upper and lower housings 11 are covered so that the first The two semicircular grooves 12 cooperate with the rotating shaft 43, so that the lower housing 11 and the first rotating shaft 43 can rotate and cooperate, and the installation is very convenient.

Abstract

公开了一种剃须刀，其包括手柄部件(7)、刀头部件(1)，手柄部件(7)与刀头部件(1)之间通过枢转组件(8)相连接；枢转组件(8)包括连接头(2)、浮动圈(3)和万向连接件(4)；连接头(2)与手柄部件(7)连接，浮动圈(3)连接刀头部件(1)与连接头(2)；万向连接件(4)设有沿X轴方向设置的第一旋转部以及沿Y轴方向设置的第二旋转部，万向连接件(4)通过第一旋转部与连接头(2)沿X轴旋转配合，通过第二旋转部与刀头部件(1)沿Y轴旋转配合。该剃须刀的优点在于，连接头固定安装在手柄部件上，万向连接件通过第一旋转部能够相对连接头绕X轴方向旋转，同时刀头部件又能够通过万向连接件的第二旋转部相对万向连接件绕Y轴旋转，可实现刀头部件相对手柄部件在各个方向的枢转动作，使得在剃须过程中，刀头部件能够自动调整以适应皮肤轮廓，从而达到最佳的剃须效果。

Description

一种剃须刀 技术领域
本发明涉及一种毛发修剪装置，具体涉及一种剃须刀。
 背景技术
剃须刀是刮剃胡须的工具，多为成年男子使用。
剃须刀按刀头结构分，可分为旋转式刀头剃须刀与往复式刀头剃须刀。
旋转式刀头剃须刀通常包括手柄部件与刀头部件，手柄部件通常包括外壳、电源、马达等，刀头部件通常包括刀头盖、切割组件等，刀头部件固定安装在手柄部件。
 技术问题
目前的剃须刀在剃须时，通常将刀头部件设置呈浮动式，使其能够更好地与人体贴合，达到更好的剃须效果，但是现有的剃须刀刀头仅仅通过切割组件的浮动，浮动浮度小，无法满足剃须要求。
 技术解决方案
为了克服背景技术的不足，本发明提供一种剃须刀，能够实现刀头部件相对手柄部件在各个方向的枢转动作。
本发明所采用的技术方案：一种剃须刀，包括手柄部件、刀头部件，所述手柄部件与刀头部件之间通过枢转组件相连接；所述枢转组件包括连接头、浮动圈、万向连接件，所述连接头与手柄部件连接，所述浮动圈连接刀头部件与连接头；所述万向连接件设有沿X轴方向设置的第一旋转部以及沿Y轴方向设置的第二旋转部，所述万向连接件通过第一旋转部与连接头沿X轴旋转配合，所述万向连接件通过第二旋转部与刀头部件沿Y轴旋转配合。
所述连接头上设有对称布置的支撑座，所述支撑座的上端面形成有向下凹陷的弧形凹槽；
所述万向连接件的第一旋转部包括与支撑座相对应的支撑杆，所述支撑杆底部形成有与弧形凹槽相适配的弧形凸台，所述弧形凸台放置在弧形凹槽内。
所述连接头上还设有对称布置的卡接凸台，所述卡接凸台设置在支撑座下方位置，且卡接凸台下端面形成有向下凸出的第一弧形面；
所述万向连接件的第一旋转部还包括与卡接凸台相对应的第一卡钩，所述第一卡钩与卡接凸台卡扣配合，且第一卡钩上端面形成与第一弧形面相适配的第二弧形面。
所述浮动圈内设有上压板，所述上压板的上端面设有若干第二卡钩，所述第二卡钩依次穿过浮动圈的上端面、刀头部件的下壳体，并与刀头部件的下壳体卡接配合。
所述浮动圈的上端面设有若干第一定位槽，所述上压板上对应设置有若干第一定位凸台，所述第一定位槽与第一定位凸台定位配合。
所述第二旋转部包括向Y轴两端伸出的旋转轴；所述上压板上设有第一半圆槽，所述下壳体上对应设有第二半圆槽，所述旋转轴设置在第一半圆槽与第二半圆槽之间。
所述浮动圈下端设有下压板，所述下压板的上端面设有若干第三卡钩，所述连接头外圈形成有环形限位凸台，所述浮动圈、下压板依次套设在连接头外，所述第三卡钩依次穿过浮动圈的下端面、环形限位凸台，并与环形限位凸台卡接配合。
所述浮动圈的下端面设有若干第二定位槽，所述环形限位凸台上对应设置有若干第二定位凸台，所述第二定位槽与第二定位凸台定位配合。
 有益效果
本发明的有益效果是：采用以上方案，连接头固定安装在手柄部件上，万向连接件通过第一旋转部能够相对连接头绕X轴方向旋转，同时刀头部件又能够通过万向连接件的第二旋转部相对万向连接件绕Y轴旋转，从而实现刀头部件相对手柄部件在各个方向的枢转动作，使得在剃须过程中，刀头部件能够自动调整以适应皮肤轮廓，从而达到最佳的剃须效果。
 附图说明
图1为本发明实施例剃须刀的结构示意图。
图2为本发明实施例剃须刀枢转组件的立体结构示意图。
图3为本发明实施例剃须刀枢转组件的俯视结构示意图
图4为图3中A-A的剖视图。
图5为图3中B-B的剖视图。
图6为本发明实施例剃须刀枢转组件的结构示意图。
图7为本发明实施例剃须刀枢转组件的爆炸分解图。
图8为本发明实施例下壳的结构示意图。
图9为本发明实施例连接头的结构示意图。
图10为本发明实施例浮动圈的结构示意图。
图11为本发明实施例万向连接件的结构示意图。
图12为本发明实施例上压板的结构示意图。
图13为本发明实施例下压板的结构示意图。
 本发明的实施方式
为使本发明的上述目的、特征和有点能够更为明显易懂，下面结合附图对本发明进行进一步的详细描述，以下给出的实施例仅为了阐明本发明，而不是为了限制本发明的范围。
如图所示，一种剃须刀，包括手柄部件7、刀头部件1， 所述手柄部件7与刀头部件1之间通过枢转组件8相连接。
所述枢转组件8包括连接头2、浮动圈3、万向连接件4，所述连接头2与手柄部件7可拆卸连接，所述浮动圈3采用柔软易变型的材质，并连接刀头部件1与连接头2。
所述万向连接件4设有沿X轴方向设置的第一旋转部以及沿Y轴方向设置的第二旋转部，所述万向连接件4通过第一旋转部与连接头2沿X轴旋转配合，所述万向连接件4通过第二旋转部与刀头部件沿Y轴旋转配合。
工作时，由于连接头2固定安装在手柄部件7上，万向连接件4通过第一旋转部能够相对连接头2绕X轴方向旋转，同时刀头部件1又能够通过万向连接件4的第二旋转部相对万向连接件绕Y轴旋转，从而实现刀头部件7相对手柄部件1在各个方向的枢转动作，使得在剃须过程中，刀头部件1能够自动调整以适应皮肤轮廓，从而达到最佳的剃须效果。
如图所示，所述浮动圈3内设有上压板5，所述上压板5的上端面设有若干第二卡钩51，所述第二卡钩51依次穿过浮动圈3的上端面、刀头部件1的下壳体11，并与刀头部件1的下壳体11卡接配合，浮动圈3与下壳体11之间通过卡接的连接方式，结构简单，安装更加方便。
进一步的，所述浮动圈3的上端面设有若干第一定位槽31，所述上压板5上对应设置有若干第一定位凸台52，所述第一定位槽31与第一定位凸台52定位配合，通过各个第一定位槽31与第一定位凸台52的定位配合，确保准确安装，同时使得结构更加稳定，进而保证其工作的稳定性。
如图所示，所述浮动圈3下端设有下压板6，所述下压板6的上端面设有若干第三卡钩61，所述连接头2外圈形成有环形限位凸台23，所述浮动圈3、下压板6依次套设在连接头2外，所述第三卡钩61依次穿过浮动圈3的下端面、环形限位凸台23，并与环形限位凸台23卡接配合，浮动圈3与连接头2之间同样通过卡接的连接方式，结构简单，安装更加方便。
进一步的，所述浮动圈3的下端面设有若干第二定位槽32，所述环形限位凸台23上对应设置有若干第二定位凸台24，所述第二定位槽32与第二定位凸台24定位配合，确保准确安装，同时使得结构更加稳定，进而保证其工作的稳定性。
如图所示，所述连接头2上设有对称布置的支撑座21，所述支撑座21的上端面形成有向下凹陷的弧形凹槽211；所述万向连接件4的第一旋转部包括与支撑座21相对应的支撑杆41，所述支撑杆41底部形成有与弧形凹槽211相适配的弧形凸台411，所述弧形凸台411放置在弧形凹槽211内。
所述万向连接件4与连接头2之间通过弧形凸台411与弧形凹槽211相互配合，弧形凸台411与弧形凹槽211两侧的端面，可以实现相互之间的限位，给旋转的角度一个限定，使得工作更加稳定，不易滑脱。
进一步的，所述连接头2上还设有对称布置的卡接凸台22，所述卡接凸台22设置在支撑座21下方位置，且卡接凸台22下端面形成有向下凸出的第一弧形面221；所述万向连接件4的第一旋转部还包括与卡接凸台22相对应的第一卡钩42，所述第一卡钩42与卡接凸台22卡扣配合，且第一卡钩42上端面形成与第一弧形面221相适配的第二弧形面421，在万向连接座4与连接头2之间通过卡接的连接结构，确保万向连接件4的稳定安装，进一步提高其工作的稳定性。
如图所示，所述第二旋转部包括向Y轴两端伸出的旋转轴43；所述上压板5上设有第一半圆槽53，所述下壳体11上对应设有第二半圆槽12，所述旋转轴43设置在第一半圆槽53与第二半圆槽12之间，安装时，将旋转轴43放置在第一半圆槽53上，在盖上下壳体11，使第二半圆槽12与旋转轴43配合，从而实现下壳体11与第旋转轴43的旋转配合，安装非常方便。
实施例不应视为对发明的限制，但任何基于本发明的精神所作的改进，都应在本发明的保护范围之内。

Claims (8)

  1. 一种剃须刀，包括手柄部件（7）、刀头部件（1），其特征在于：所述手柄部件（7）与刀头部件（1）之间通过枢转组件（8）相连接；
    所述枢转组件（8）包括连接头（2）、浮动圈（3）、万向连接件（4），所述连接头（2）与手柄部件（7）连接，所述浮动圈（3）连接刀头部件（1）与连接头（2）；
    所述万向连接件（4）设有沿X轴方向设置的第一旋转部以及沿Y轴方向设置的第二旋转部，所述万向连接件（4）通过第一旋转部与连接头（2）沿X轴旋转配合，所述万向连接件（4）通过第二旋转部与刀头部件沿Y轴旋转配合。
  2. 根据权利要求1所述的剃须刀，其特征在于：所述连接头（2）上设有对称布置的支撑座（21），所述支撑座（21）的上端面形成有向下凹陷的弧形凹槽（211）；
    所述万向连接件（4）的第一旋转部包括与支撑座（21）相对应的支撑杆（41），所述支撑杆（41）底部形成有与弧形凹槽（211）相适配的弧形凸台（411），所述弧形凸台（411）放置在弧形凹槽（211）内。
  3. 根据权利要求2所述的剃须刀，其特征在于：所述连接头（2）上还设有对称布置的卡接凸台（22），所述卡接凸台（22）设置在支撑座（21）下方位置，且卡接凸台（22）下端面形成有向下凸出的第一弧形面（221）；
    所述万向连接件（4）的第一旋转部还包括与卡接凸台（22）相对应的第一卡钩（42），所述第一卡钩（42）与卡接凸台（22）卡扣配合，且第一卡钩（42）上端面形成与第一弧形面（221）相适配的第二弧形面（421）。
  4. 根据权利要求1所述的剃须刀，其特征在于：所述浮动圈（3）内设有上压板（5），所述上压板（5）的上端面设有若干第二卡钩（51），所述第二卡钩（51）依次穿过浮动圈（3）的上端面、刀头部件（1）的下壳体（11），并与刀头部件（1）的下壳体（11）卡接配合。
  5. 根据权利要求4所述的剃须刀，其特征在于：所述浮动圈（3）的上端面设有若干第一定位槽（31），所述上压板（5）上对应设置有若干第一定位凸台（52），所述第一定位槽（31）与第一定位凸台（52）定位配合。
  6. 根据权利要求4所述的剃须刀，其特征在于：所述第二旋转部包括向Y轴两端伸出的旋转轴（43）；
    所述上压板（5）上设有第一半圆槽（53），所述下壳体（11）上对应设有第二半圆槽（12），所述旋转轴（43）设置在第一半圆槽（53）与第二半圆槽（12）之间。
  7. 根据权利要求1所述的剃须刀，其特征在于：所述浮动圈（3）下端设有下压板（6），所述下压板（6）的上端面设有若干第三卡钩（61），所述连接头（2）外圈形成有环形限位凸台（23），所述浮动圈（3）、下压板（6）依次套设在连接头（2）外，所述第三卡钩（61）依次穿过浮动圈（3）的下端面、环形限位凸台（23），并与环形限位凸台（23）卡接配合。
  8. 根据权利要求5所述的剃须刀，其特征在于：所述浮动圈（3）的下端面设有若干第二定位槽（32），所述环形限位凸台（23）上对应设置有若干第二定位凸台（24），所述第二定位槽（32）与第二定位凸台（24）定位配合。
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