WO2025021154A1 - Double-blade hair clipper - Google Patents

Abstract

A double-blade hair clipper, relating to the technical field of hairdressing tools. The double-blade hair clipper comprises: a housing (300), the housing being detachably connected to a first blade head assembly (100) and a second blade head assembly (200), the first blade head assembly comprising a first fixed blade (110) and a first movable blade (120), the first fixed blade being located above the first movable blade, the second blade head assembly comprising a second fixed blade (210) and a second movable blade (220), the second movable blade being located below the first movable blade, the second fixed blade being located below the second movable blade, and the first movable blade and the second movable blade being both located between the first fixed blade and the second fixed blade; and a reciprocating driving mechanism (400), an output end of the reciprocating driving mechanism being connected to the first movable blade, the first movable blade being transmissively connected to the second movable blade, and the reciprocating driving mechanism being used for driving the first movable blade and the second movable blade to reciprocate in the left-right direction so as to cut off hairs. The double-blade hair clipper prevents the first movable blade and the second movable blade from cutting the skin of customers, thus improving the safety during using processes of the double-blade hair clipper.

Description

Double blade hair cutting scissors Technical Field

The present application relates to the technical field of hairdressing tools, and in particular to a pair of double-blade hair clippers.

Background Art

A hair clipper is a common haircutting tool used to trim hair. At present, commonly used hair clippers are composed of a blade head and a driving member. The blade head includes two fixed blades and a movable blade that fit each other. The front edges of the movable blade and the fixed blade are both provided with a row of blade teeth. The driving member can drive the movable blade to move back and forth left and right, so that the hair entering the gap between two adjacent blade teeth of the fixed blade is cut. In the prior art, the blade teeth of the movable blade of the hair clippers are exposed or partially exposed. During the haircut process, the blade teeth on the edge of the movable blade may cut the customer's scalp, ears, neck or other sensitive parts due to improper operation, which reduces the safety of the hair clippers during use.

Summary of the invention

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a double-blade hair clipper, which can avoid passive cuts on the customer's skin caused by improper operation of the barber, and improve the safety of the double-blade hair clipper during use.

The double-blade hair clippers according to the embodiment of the present application include:

A housing, to which a first cutter head assembly and a second cutter head assembly are detachably connected;

The first cutter head assembly includes a first fixed cutter and a first movable cutter, the first fixed cutter is located above the first movable cutter, a row of first cutter teeth is provided at the front end of the first fixed cutter, and a row of second cutter teeth is provided at the front end of the first movable cutter;

The second cutter head assembly includes a second fixed cutter and a second movable cutter, the second movable cutter is located below the first movable cutter, the second fixed cutter is located below the second movable cutter, a row of third cutter teeth is provided at the front end of the second fixed cutter, and a row of fourth cutter teeth is provided at the front end of the second movable cutter;

The first movable knife and the second movable knife are both located between the first fixed knife and the second fixed knife, so that the first fixed knife and the second fixed knife cover the first movable knife and the second movable knife.

The reciprocating drive mechanism is arranged in the shell, the output end of the reciprocating drive mechanism is connected with the first movable knife, the first movable knife is transmission-connected with the second movable knife, and the reciprocating drive mechanism is used to drive the first movable knife and the second movable knife to reciprocate in the left and right directions to cut the hair.

At least the following beneficial effects are achieved:

The first movable blade and the second movable blade are both located between the first fixed blade and the second fixed blade, so that the first fixed blade and the second fixed blade cover the first movable blade and the second movable blade, and the sides of the first movable blade and the second movable blade facing away from each other are respectively covered by the first fixed blade and the second fixed blade, thereby preventing the first movable blade and the second movable blade from contacting with the customer's skin, thus preventing the first movable blade and the second movable blade from scratching the customer's skin during the haircut process, and improving the safety of the double-blade hair clippers during use.

According to the double-blade hair clippers of the embodiment of the present application, a first protrusion is provided at the front end of the first blade tooth, and the front end of the first protrusion is located in front of the second blade tooth. The first protrusion can abut against the customer's skin to limit the first blade tooth and the second blade tooth from abutting against the customer's skin. A second protrusion is provided at the front end of the second blade tooth, and the front end of the second protrusion is located in front of the fourth blade tooth. The second protrusion can abut against the customer's skin to limit the third blade tooth and the fourth blade tooth from abutting against the customer's skin. The distance between the front end of the first protrusion and the front end of the second protrusion is less than or equal to 2 mm.

According to the double-blade hair clippers of the embodiment of the present application, a first curved surface is provided on the first protrusion, and the first protrusion abuts against the customer's skin through the first curved surface; a second curved surface is provided on the second protrusion, and the second protrusion abuts against the customer's skin through the second curved surface.

According to the double-blade hair clippers of the embodiment of the present application, a first enclosure is provided on the side of the first protrusion close to the second protrusion, and a second enclosure is provided on the side of the second protrusion close to the first protrusion. The first enclosure and the second enclosure are used to close the gap between the front end of the second tooth and the front end of the fourth tooth.

According to the double-blade hair clippers of the embodiment of the present application, the first blade head assembly includes a first blade holder, the first blade holder is connected to the first movable blade, the second blade head assembly includes a second blade holder, the second blade holder is connected to the second movable blade, the first blade holder is transmission-connected to the second blade holder, a first transmission groove is provided on the first blade holder, the reciprocating drive mechanism includes a rotating drive member and an eccentric rod, the rotating drive member is provided in the housing, the eccentric rod is passed through the first transmission groove, the rotating drive member is used to drive the eccentric rod to abut against the left side wall or the right side wall of the first transmission groove back and forth, so that the first blade holder moves back and forth left and right, and the first blade holder drives the second blade holder to move back and forth left and right.

According to the double-blade hair clippers of the embodiment of the present application, a transmission block is provided on the first blade holder, and a second transmission groove is opened on the second blade holder. The transmission block is inserted into the second transmission groove so that the transmission block can abut against the left side wall or the right side wall of the second transmission groove back and forth.

According to the double-blade hair clippers of the embodiment of the present application, the first blade head assembly also includes a first shell. The first tool holder is detachably connected to the shell, and is slidably connected to the first shell left and right. The first fixed knife is connected to the first shell. The second tool head assembly also includes a second shell, and the second shell is detachably connected to the shell, and the second tool holder is slidably connected to the second shell left and right. The second fixed knife is connected to the second shell.

According to the double-blade hair clippers of the embodiment of the present application, a first buckle slot and a second buckle slot are provided on the shell, a first buckle block is provided on the first shell, and the first buckle block can be buckled in the first buckle slot, and a second buckle block is provided on the second shell, and the second buckle block can be buckled in the second buckle slot.

According to the double-blade hair clippers of the embodiment of the present application, an iron sheet is provided on the shell, a first magnetic component is provided on the first shell, the first shell is magnetically attracted to the iron sheet through the first magnetic component, and a second magnetic component is provided on the second shell, the second shell is magnetically attracted to the iron sheet through the second magnetic component.

According to the double-blade hair clippers of the embodiment of the present application, the first blade head assembly also includes a first blade pressure spring, the first blade holder is connected to the first shell through the first blade pressure spring, and the first blade pressure spring is used to apply shearing pressure to the first blade holder, and the second blade head assembly also includes a second blade pressure spring, the second blade holder is connected to the second shell through the second blade pressure spring, and the second blade pressure spring is used to apply shearing pressure to the second blade holder.

Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

FIG1 is a schematic structural diagram of a double-blade hair clipper according to an embodiment of the present application;

FIG2 is a schematic diagram of the structures of a first fixed knife, a first movable knife, a second fixed knife, and a second movable knife;

FIG3 is a schematic diagram of a partial enlarged structure of point A in FIG1 ;

FIG4 is a side view of the structure of the first fixed knife, the first movable knife, the second fixed knife, the second movable knife, the first knife holder and the second knife holder;

FIG5 is a schematic structural diagram of a first cutter head assembly;

FIG6 is a schematic structural diagram of a second cutter head assembly;

FIG7 is a schematic structural diagram of the first tool holder, the second tool holder and the eccentric rod;

FIG8 is a schematic diagram of the structure of the housing and the eccentric rod;

Reference numerals:

The first blade assembly 100; the first fixed blade 110; the first blade tooth 111; the first protrusion 112; the first enclosure 113; the first movable blade 120; the second blade tooth 121; the first blade holder 130; the first transmission groove 131; the transmission block 132; the first housing 140; the first buckle block 141; the first magnetic attraction member 142; the first blade pressing spring 150;

The second blade assembly 200; the second fixed blade 210; the third blade tooth 211; the second protrusion 212; the second enclosure 213; the second movable blade 220; the fourth blade tooth 221; the second blade holder 230; the second transmission groove 231; the second housing 240; the second buckle block 241; the second magnetic member 242; the second blade pressing spring 250;

Housing 300; first buckle slot 310; second buckle slot 320; iron sheet 330;

Reciprocating drive mechanism 400; eccentric rod 410.

DETAILED DESCRIPTION

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In the description of this application, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

With reference to FIGS. 1 to 4 , a double-blade hair clipper according to an embodiment of the present application includes:

A housing 300 , to which the first cutter head assembly 100 and the second cutter head assembly 200 are detachably connected;

The first blade assembly 100 includes a first fixed blade 110 and a first movable blade 120. The first fixed blade 110 is located above the first movable blade 120. A row of first blade teeth 111 is disposed at the front end of the first fixed blade 110. The first movable blade 120 A row of second teeth 121 is provided at the front end;

The second blade assembly 200 includes a second fixed blade 210 and a second movable blade 220. The second movable blade 220 is located below the first movable blade 120. The second fixed blade 210 is located below the second movable blade 220. A row of third blade teeth 211 is provided at the front end of the second fixed blade 210. A row of fourth blade teeth 221 is provided at the front end of the second movable blade 220.

The first movable knife 120 and the second movable knife 220 are both located between the first fixed knife 110 and the second fixed knife 210 , so that the first fixed knife 110 and the second fixed knife 210 cover the first movable knife 120 and the second movable knife 220 .

The reciprocating drive mechanism 400 is disposed in the housing 300. The output end of the reciprocating drive mechanism 400 is connected to the first movable knife 120. The first movable knife 120 is transmission-connected to the second movable knife 220. The reciprocating drive mechanism 400 is used to drive the first movable knife 120 and the second movable knife 220 to reciprocate in the left and right directions to cut the hair.

It can be understood that the first movable blade 120 and the second movable blade 220 are both located between the first fixed blade 110 and the second fixed blade 210, so that the first fixed blade 110 and the second fixed blade 210 cover the first movable blade 120 and the second movable blade 220, and the sides of the first movable blade 120 and the second movable blade 220 that are away from each other are respectively covered by the first fixed blade 110 and the second fixed blade 210, thereby preventing the first movable blade 120 and the second movable blade 220 from contacting the customer's skin, and avoiding the first movable blade 120 and the second movable blade 220 from scratching the customer's skin during the haircut process, thereby improving the safety of the double-blade hair clippers during use. Furthermore, when it is necessary to clean the first blade head assembly 100 and the second blade head assembly 200, the first blade head assembly 100 and the second blade head assembly 200 can be removed from the housing 300, thereby improving the convenience of cleaning the double-blade hair clippers.

It is not difficult to understand that the hair will enter between two adjacent first blade teeth 111 and two adjacent third blade teeth 211, and then under the action of the first movable blade 120 and the second movable blade 220, the first blade teeth 111 and the second blade teeth 121 cooperate with each other, and the third blade teeth 211 and the fourth blade teeth 221 cooperate with each other, forming a scissors-like effect, thereby cutting the hair entering between the two adjacent first blade teeth 111 and the two adjacent third blade teeth 211, achieving a haircutting effect.

Referring to Figures 3 and 4, a first protrusion 112 is provided at the front end of the first tooth 111, and the front end of the first protrusion 112 is located in front of the second tooth 121. The first protrusion 112 can abut against the customer's skin to limit the first tooth 111 and the second tooth 121 from abutting against the customer's skin. A second protrusion 212 is provided at the front end of the second tooth 121, and the front end of the second protrusion 212 is located in front of the fourth tooth 221. The second protrusion 212 can abut against the customer's skin to limit the third tooth 211 and the fourth tooth 221 from abutting against the customer's skin. The distance between the front end of the first protrusion 112 and the front end of the second protrusion 212 is less than or equal to 2 mm. It can be understood that the first protrusion 112 and the second protrusion 212 are both arranged in front of the first blade tooth 111, the second blade tooth 121, the third blade tooth 211 and the fourth blade tooth 221. During the haircut process, the first protrusion 112 and the second protrusion 212 can contact the customer's skin, effectively avoiding the first blade tooth 111, the second blade tooth 121, the third blade tooth 211 and the fourth blade tooth 221 from contacting the customer's skin, avoiding the first blade tooth 111, the second blade tooth 121, the third blade tooth 211 and the fourth blade tooth 221 from damaging the customer's skin, and further improving the safety of the double-blade hair clippers during use.

3 and 4 , during a haircut, if the first protrusion 112 and the second protrusion 212 are pressed against the customer's skin, the soft skin may enter between the first protrusion 112 and the second protrusion 212, or enter between two adjacent first protrusions 112 and between two adjacent second protrusions 212 due to the deformation of the protrusion, which may easily cause the second blade tooth 121 on the first movable blade 120 and the fourth blade tooth 221 on the second movable blade 220 to scratch the skin between the first protrusion 112 and the second protrusion 212, or scratch the skin between two adjacent first protrusions 112 and between two adjacent second protrusions 212. It can be understood that the distance between the front end of the first protrusion 112 and the front end of the second protrusion 212 is less than or equal to 2 mm. The smaller gap can effectively reduce the depth of the skin entering between the first protrusion 112 and the second protrusion 212, and reduce the depth of the skin entering between two adjacent first protrusions 112 and between two adjacent second protrusions 212, thereby avoiding the second blade tooth 121 and the fourth blade tooth 221 from scratching the skin between the first protrusion 112 and the second protrusion 212, thereby avoiding the second blade tooth 121 and the fourth blade tooth 221 from scratching the skin between two adjacent first protrusions 112 and between two adjacent second protrusions 212, thereby further improving the safety of the double-blade hair clippers during use.

As an embodiment of the present application, the first protrusion 112 is provided with a first curved surface, which can abut against the customer's skin, and the second protrusion 212 is provided with a second curved surface, which can abut against the customer's skin. It can be understood that the first protrusion 112 abuts against the customer's skin through the first curved surface, and the second protrusion 212 abuts against the customer's skin through the second curved surface. The smooth first curved surface and the second curved surface can improve the customer's comfort during the haircut process.

3 and 4, a first enclosure 113 is provided on the side of the first protrusion 112 close to the second protrusion 212, and a second enclosure 213 is provided on the side of the second protrusion 212 close to the first protrusion 112. The first enclosure 113 and the second enclosure 213 are used to close the gap between the front end of the second blade tooth 121 and the front end of the fourth blade tooth 221. It can be understood that the first enclosure 113 and the second enclosure 213 can prevent the skin from entering the first protrusion 112 and The second protrusions 212 can reduce the depth of the skin entering between two adjacent first protrusions 112 and between two adjacent second protrusions 212, thereby avoiding the second blade teeth 121 and the fourth blade teeth 221 from scratching the skin, and further improving the safety of the double-blade hair clippers during use.

Referring to FIGS. 5 to 7 , the first tool head assembly 100 includes a first tool holder 130, which is connected to the first movable knife 120, and the second tool head assembly 200 includes a second tool holder 230, which is connected to the second movable knife 220. The first tool holder 130 is connected to the second tool holder 230 in a transmission connection, and a first transmission groove 131 is provided on the first tool holder 130. The reciprocating drive mechanism 400 includes a rotating drive member and an eccentric rod 410, and the rotating drive member is provided in the housing 300, and the eccentric rod 410 is provided in the first transmission groove 131. The rotating drive member is used to drive the eccentric rod 410 to abut against the left side wall or the right side wall of the first transmission groove 131 back and forth, so that the first tool holder 130 reciprocates in the left and right directions. As an embodiment of the present application, the rotating drive member can be a motor. It can be understood that the output shaft of the motor is connected to the eccentric rod 410, and the motor drives the eccentric rod 410 to perform circular motion around the central axis of the motor output shaft, so that the eccentric rod 410 abuts against the left side wall or the right side wall of the first transmission groove 131 back and forth, thereby driving the first tool holder 130 to perform reciprocating motion in the left and right directions. Since the first tool holder 130 is transmission-connected to the second tool holder 230, the first tool holder 130 can drive the second tool holder 230 to perform reciprocating motion in the left and right directions. The eccentric rod 410 is always inserted in the first transmission groove 131. The length direction of the eccentric rod 410 is parallel to the front-back direction.

Referring to FIGS. 5 to 7 , a transmission block 132 is provided on the first tool rest 130, and a second transmission slot 231 is provided on the second tool rest 230. The transmission block 132 is inserted into the second transmission slot 231, so that the transmission block 132 can be abutted against the left side wall or the right side wall of the second transmission slot 231 back and forth. It can be understood that the first tool rest 130 reciprocates in the left and right directions, and the transmission block 132 can be abutted against the left side wall or the right side wall of the second transmission slot 231 back and forth, so that the second tool rest 230 can reciprocate in the left and right directions. Under the cooperation between the transmission block 132 and the second transmission slot 231, the first tool rest 130 and the second tool rest 230 are connected in transmission.

5 and 6, the first blade assembly 100 further includes a first housing 140, the first housing 140 is detachably connected to the housing 300, the first blade holder 130 is slidably connected to the first housing 140, the first fixed blade 110 is connected to the first housing 140, and the second blade assembly 200 further includes a second housing 240, the second housing 240 is detachably connected to the housing 300, the second blade holder 230 is slidably connected to the second housing 240, and the second fixed blade 210 is connected to the second housing 240. As an embodiment of the present application, the first housing 140 is provided with a first long strip extending in the left-right direction, and the first blade holder 130 is provided with a first long strip extending in the left-right direction. A first slide groove extending therefrom is provided, and the first long strip block is arranged in the first slide groove so that the first long strip block can guide the left-right movement of the first tool holder 130; a second long strip block extending along the left-right direction is provided on the second shell 240, and a second slide groove extending along the left-right direction is opened on the second tool holder 230, and the second long strip block is arranged in the second slide groove so that the second long strip block can guide the left-right movement of the second tool holder 230.

5 to 8 , a first buckle slot 310 and a second buckle slot 320 are formed on the shell 300 , a first buckle block 141 is formed on the first shell 140 , and the first buckle block 141 can be buckled into the first buckle slot 310 , and a second buckle block 241 is formed on the second shell 240 , and the second buckle block 241 can be buckled into the second buckle slot 320 . It can be understood that the first buckle block 141 can be buckled into the first buckle groove 310, and the mutual cooperation between the first buckle block 141 and the first buckle groove 310 plays a role in positioning the first shell 140, so that the first shell 140 can be correctly installed on the shell 300, and the first buckle block 141 and the first buckle groove 310 can realize the rapid installation and disassembly of the first shell 140, which is convenient for the barber to quickly install or disassemble the first blade assembly 100; the second buckle block 241 can be buckled into the second buckle groove 320, and the mutual cooperation between the second buckle block 241 and the second buckle groove 320 plays a role in positioning the second shell 240, so that the second shell 240 can be correctly installed on the shell 300, and the second buckle block 241 and the second buckle groove 320 can realize the rapid installation and disassembly of the second shell 240, which is convenient for the barber to quickly install or disassemble the second blade assembly 200, thereby improving the convenience of using the double-blade hair clippers.

5 , 6 and 8 , an iron sheet 330 is provided on the shell 300 , a first magnetic component 142 is provided on the first shell 140 , and the first shell 140 is magnetically attracted to the iron sheet 330 via the first magnetic component 142 , a second magnetic component 242 is provided on the second shell 240 , and the second shell 240 is magnetically attracted to the iron sheet 330 via the second magnetic component 242 . It can be understood that the first shell 140 is connected to the iron sheet 330 on the shell 300 through the first magnetic member 142. The first magnetic member 142 not only plays a role of fixed connection, but also can realize the rapid installation and removal of the first shell 140, which is convenient for the barber to quickly install or remove the first blade assembly 100; the second shell 240 is connected to the iron sheet 330 on the shell 300 through the second magnetic member 242. The second magnetic member 242 not only plays a role of fixed connection, but also can realize the rapid installation and removal of the second shell 240, which is convenient for the barber to quickly install or remove the second blade assembly 200, thereby improving the convenience of using the double-blade hair clippers. As an embodiment of the present application, the first magnetic member 142 is a first magnet, and the second magnetic member 242 is a second magnet.

5 and 6, the first cutter head assembly 100 further includes a first cutter pressing spring 150, the first cutter holder 130 is connected to the first housing 140 via the first cutter pressing spring 150, and the first cutter pressing spring 150 is used to press the first cutter head assembly 100 to the first cutter head assembly 100. The second blade head assembly 200 further comprises a second blade pressing spring 250, through which the second blade holder 230 is connected to the second housing 240, and the second blade pressing spring 250 is used to apply shearing pressure to the second blade holder 230. During the circular motion of the eccentric rod 410 around the central axis of the motor output shaft, the eccentric rod 410 will be separated from the abutment with the left wall or the right wall of the first transmission groove 131 at certain specific positions, at which time the power transmitted by the eccentric rod 410 will be uneven, and the first blade holder 130 will be interrupted by force, resulting in unstable power transmission of the eccentric rod 410, which will not only cause vibration and noise to the double-blade hair clippers, but also shorten the service life of the eccentric rod 410.

It is understandable that by providing the first knife pressing spring 150, under the action of the first knife pressing spring 150, the first knife holder 130 can move left and right, so that the left side wall or right side wall of the first transmission groove 131 on the first knife holder 130 can always keep in contact with the eccentric rod 410, thus avoiding uneven power transmitted by the eccentric rod 410. Similarly, the transmission block 132 will be separated from the contact with the left side wall or right side wall of the second transmission groove 231 at certain specific positions. By providing the second knife pressing spring 250, under the action of the second knife pressing spring 250, the second knife holder 230 can move left and right, so that the left side wall or right side wall of the second transmission groove 231 on the second knife holder 230 can always keep in contact with the transmission block 132, thus avoiding uneven power transmitted by the transmission block 132, thus improving the quietness of the double-blade hair clipper and extending the service life of the transmission block 132.

On the other hand, the first knife pressing spring 150 and the second knife pressing spring 250 apply shearing pressure to the first knife holder 130 and the second knife holder 230 respectively, so that the first movable knife 120 on the first knife holder 130 can obtain a stable shearing force, ensuring that the first movable knife 120 and the first fixed knife 110 maintain a consistent haircutting effect during the working process; and the second movable knife 220 on the second knife holder 230 can obtain a stable shearing force, ensuring that the second movable knife 220 and the second fixed knife 210 maintain a consistent haircutting effect during the working process.

As an embodiment of the present application, any one of the first blade assembly 100 or the second blade assembly 200 can be disassembled, and the double-blade hair clippers can be used as single-head hair clippers. At this time, the gap between two adjacent second blade teeth 121 on the first movable blade 120 is smaller than the gap between two adjacent fourth blade teeth 221 on the second movable blade 220. The first movable blade 120 is used for fine cutting, and the second movable blade 220 is used for rough cutting. The rear end of the housing 300 is connected to a handle for the barber to hold.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Of course, the present application is not limited to the above-mentioned implementation modes, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims (10)

A double-blade hair clipper, comprising: A housing, to which a first cutter head assembly and a second cutter head assembly are detachably connected; The first cutter head assembly comprises a first fixed cutter and a first movable cutter, the first fixed cutter is located above the first movable cutter, a row of first cutter teeth is provided at the front end of the first fixed cutter, and a row of second cutter teeth is provided at the front end of the first movable cutter; The second blade assembly includes a second fixed blade and a second movable blade, the second movable blade is located below the first movable blade, the second fixed blade is located below the second movable blade, a row of third blade teeth is provided at the front end of the second fixed blade, and a row of fourth blade teeth is provided at the front end of the second movable blade; The first movable knife and the second movable knife are both located between the first fixed knife and the second fixed knife, so that the first fixed knife and the second fixed knife cover the first movable knife and the second movable knife; A reciprocating drive mechanism is disposed in the housing, an output end of the reciprocating drive mechanism is connected to the first movable knife, the first movable knife is transmission-connected to the second movable knife, and the reciprocating drive mechanism is used to drive the first movable knife and the second movable knife to reciprocate in the left and right directions to cut the hair. The double-blade hair clippers according to claim 1, wherein the front end of the first blade tooth is provided with a first protrusion, the front end of the first protrusion is located in front of the second blade tooth, the first protrusion can abut against the customer's skin to limit the first blade tooth and the second blade tooth from abutting against the customer's skin, and the front end of the second blade tooth is provided with a second protrusion, the front end of the second protrusion is located in front of the fourth blade tooth, and the second protrusion can abut against the customer's skin to limit the third blade tooth and the fourth blade tooth from abutting against the customer's skin. The double-blade hair clippers according to claim 2, wherein the distance between the front end of the first protrusion and the front end of the second protrusion is less than or equal to 2 mm. The double-blade hair clippers according to claim 2, wherein a first enclosure is provided on the side of the first protrusion close to the second protrusion, and a second enclosure is provided on the side of the second protrusion close to the first protrusion, and the first enclosure and the second enclosure are used to close the gap between the front end of the second blade tooth and the front end of the fourth blade tooth. The double-blade hair clippers according to claim 1, wherein the first blade head assembly includes a first blade The first tool holder is connected to the first movable knife, the second tool head assembly includes a second tool holder, the second tool holder is connected to the second movable knife, the first tool holder is transmission-connected to the second tool holder, a first transmission groove is provided on the first tool holder, the reciprocating drive mechanism includes a rotating drive member and an eccentric rod, the rotating drive member is provided in the housing, the eccentric rod is passed through the first transmission groove, the rotating drive member is used to drive the eccentric rod to abut against the left side wall or the right side wall of the first transmission groove back and forth, so that the first tool holder can reciprocate in the left and right directions. According to the double-blade hair clippers of claim 5, a transmission block is provided on the first blade holder, a second transmission groove is opened on the second blade holder, and the transmission block is inserted into the second transmission groove so that the transmission block can abut against the left wall or the right wall of the second transmission groove back and forth. The double-blade hair clippers according to claim 5, wherein the first blade head assembly further includes a first shell, the first shell is detachably connected to the housing, the first blade holder is slidably connected to the first shell left and right, and the first fixed blade is connected to the first shell, and the second blade head assembly further includes a second shell, the second shell is detachably connected to the housing, the second blade holder is slidably connected to the second shell left and right, and the second fixed blade is connected to the second shell. According to the double-blade hair clippers according to claim 7, a first buckle slot and a second buckle slot are provided on the shell, a first buckle block is provided on the first shell, and the first buckle block can be buckled into the first buckle slot, and a second buckle block is provided on the second shell, and the second buckle block can be buckled into the second buckle slot. According to the double-blade hair clippers of claim 8, an iron sheet is provided on the shell, a first magnetic attraction component is provided on the first shell, the first shell is magnetically attracted to the iron sheet through the first magnetic attraction component, and a second magnetic attraction component is provided on the second shell, and the second shell is magnetically attracted to the iron sheet through the second magnetic attraction component. The double-blade hair clippers according to claim 7, wherein the first blade head assembly further includes a first blade pressure spring, the first blade holder is connected to the first shell via the first blade pressure spring, and the first blade pressure spring is used to apply shearing pressure to the first blade holder, and the second blade head assembly further includes a second blade pressure spring, the second blade holder is connected to the second shell via the second blade pressure spring, and the second blade pressure spring is used to apply shearing pressure to the second blade holder.